diff options
Diffstat (limited to 'arch/powerpc')
130 files changed, 3014 insertions, 1725 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 694b0c63ee5..de1ef2fa1a2 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -417,6 +417,17 @@ config PPC_MAPLE This option enables support for the Maple 970FX Evaluation Board. For more informations, refer to <http://www.970eval.com> +config PPC_PASEMI + depends on PPC_MULTIPLATFORM && PPC64 + bool "PA Semi SoC-based platforms" + default n + select MPIC + select PPC_UDBG_16550 + select GENERIC_TBSYNC + help + This option enables support for PA Semi's PWRficient line + of SoC processors, including PA6T-1682M + config PPC_CELL bool default n @@ -436,7 +447,8 @@ config PPC_IBM_CELL_BLADE select UDBG_RTAS_CONSOLE config UDBG_RTAS_CONSOLE - bool + bool "RTAS based debug console" + depends on PPC_RTAS default n config XICS diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index e29ef77d3b0..5ad149b47e3 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -18,6 +18,20 @@ config DEBUG_STACK_USAGE This option will slow down process creation somewhat. +config HCALL_STATS + bool "Hypervisor call instrumentation" + depends on PPC_PSERIES && DEBUG_FS + help + Adds code to keep track of the number of hypervisor calls made and + the amount of time spent in hypervisor callsr. Wall time spent in + each call is always calculated, and if available CPU cycles spent + are also calculated. A directory named hcall_inst is added at the + root of the debugfs filesystem. Within the hcall_inst directory + are files that contain CPU specific call statistics. + + This option will add a small amount of overhead to all hypervisor + calls. + config DEBUGGER bool "Enable debugger hooks" depends on DEBUG_KERNEL @@ -74,6 +88,8 @@ config XMON very early during boot. 'xmon=on' will just enable the xmon debugger hooks. 'xmon=off' will disable the debugger hooks if CONFIG_XMON_DEFAULT is set. + xmon will print a backtrace on the very first invocation. + 'xmon=nobt' will disable this autobacktrace. config XMON_DEFAULT bool "Enable xmon by default" diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index d961bfeed05..e73774136b5 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -36,11 +36,16 @@ zliblinuxheader := zlib.h zconf.h zutil.h $(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader)) #$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h) -src-boot := crt0.S string.S prom.c stdio.c main.c div64.S +src-boot-$(CONFIG_PPC_MULTIPLATFORM) := of.c +src-boot := crt0.S string.S stdio.c main.c div64.S $(src-boot-y) src-boot += $(zlib) src-boot := $(addprefix $(obj)/, $(src-boot)) obj-boot := $(addsuffix .o, $(basename $(src-boot))) +ifeq ($(call cc-option-yn, -fstack-protector),y) +BOOTCFLAGS += -fno-stack-protector +endif + BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) quiet_cmd_copy_zlib = COPY $@ diff --git a/arch/powerpc/boot/dts/mpc8349emds.dts b/arch/powerpc/boot/dts/mpc8349emds.dts index 12f5dbf3055..efceb343265 100644 --- a/arch/powerpc/boot/dts/mpc8349emds.dts +++ b/arch/powerpc/boot/dts/mpc8349emds.dts @@ -214,10 +214,10 @@ b800 0 0 4 700 15 8 /* IDSEL 0x18 */ - b000 0 0 1 700 15 8 - b000 0 0 2 700 16 8 - b000 0 0 3 700 17 8 - b000 0 0 4 700 14 8>; + c000 0 0 1 700 15 8 + c000 0 0 2 700 16 8 + c000 0 0 3 700 17 8 + c000 0 0 4 700 14 8>; interrupt-parent = <700>; interrupts = <42 8>; bus-range = <0 0>; @@ -274,10 +274,10 @@ b800 0 0 4 700 15 8 /* IDSEL 0x18 */ - b000 0 0 1 700 15 8 - b000 0 0 2 700 16 8 - b000 0 0 3 700 17 8 - b000 0 0 4 700 14 8>; + c000 0 0 1 700 15 8 + c000 0 0 2 700 16 8 + c000 0 0 3 700 17 8 + c000 0 0 4 700 14 8>; interrupt-parent = <700>; interrupts = <42 8>; bus-range = <0 0>; diff --git a/arch/powerpc/boot/flatdevtree.h b/arch/powerpc/boot/flatdevtree.h new file mode 100644 index 00000000000..761c8dc8400 --- /dev/null +++ b/arch/powerpc/boot/flatdevtree.h @@ -0,0 +1,46 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef FLATDEVTREE_H +#define FLATDEVTREE_H + +#include "types.h" + +/* Definitions used by the flattened device tree */ +#define OF_DT_HEADER 0xd00dfeed /* marker */ +#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */ +#define OF_DT_END_NODE 0x2 /* End node */ +#define OF_DT_PROP 0x3 /* Property: name off, size, content */ +#define OF_DT_NOP 0x4 /* nop */ +#define OF_DT_END 0x9 + +#define OF_DT_VERSION 0x10 + +struct boot_param_header { + u32 magic; /* magic word OF_DT_HEADER */ + u32 totalsize; /* total size of DT block */ + u32 off_dt_struct; /* offset to structure */ + u32 off_dt_strings; /* offset to strings */ + u32 off_mem_rsvmap; /* offset to memory reserve map */ + u32 version; /* format version */ + u32 last_comp_version; /* last compatible version */ + /* version 2 fields below */ + u32 boot_cpuid_phys; /* Physical CPU id we're booting on */ + /* version 3 fields below */ + u32 dt_strings_size; /* size of the DT strings block */ +}; + +#endif /* FLATDEVTREE_H */ diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c index b66634c9ea3..d719bb9333d 100644 --- a/arch/powerpc/boot/main.c +++ b/arch/powerpc/boot/main.c @@ -14,17 +14,12 @@ #include "page.h" #include "string.h" #include "stdio.h" -#include "prom.h" #include "zlib.h" +#include "ops.h" +#include "flatdevtree.h" extern void flush_cache(void *, unsigned long); - -/* Value picked to match that used by yaboot */ -#define PROG_START 0x01400000 /* only used on 64-bit systems */ -#define RAM_END (512<<20) /* Fixme: use OF */ -#define ONE_MB 0x100000 - extern char _start[]; extern char __bss_start[]; extern char _end[]; @@ -33,14 +28,6 @@ extern char _vmlinux_end[]; extern char _initrd_start[]; extern char _initrd_end[]; -/* A buffer that may be edited by tools operating on a zImage binary so as to - * edit the command line passed to vmlinux (by setting /chosen/bootargs). - * The buffer is put in it's own section so that tools may locate it easier. - */ -static char builtin_cmdline[512] - __attribute__((section("__builtin_cmdline"))); - - struct addr_range { unsigned long addr; unsigned long size; @@ -51,21 +38,16 @@ static struct addr_range vmlinuz; static struct addr_range initrd; static unsigned long elfoffset; +static int is_64bit; -static char scratch[46912]; /* scratch space for gunzip, from zlib_inflate_workspacesize() */ +/* scratch space for gunzip; 46912 is from zlib_inflate_workspacesize() */ +static char scratch[46912]; static char elfheader[256]; - -typedef void (*kernel_entry_t)( unsigned long, - unsigned long, - void *, - void *); - +typedef void (*kernel_entry_t)(unsigned long, unsigned long, void *); #undef DEBUG -static unsigned long claim_base; - #define HEAD_CRC 2 #define EXTRA_FIELD 4 #define ORIG_NAME 8 @@ -123,24 +105,6 @@ static void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp) zlib_inflateEnd(&s); } -static unsigned long try_claim(unsigned long size) -{ - unsigned long addr = 0; - - for(; claim_base < RAM_END; claim_base += ONE_MB) { -#ifdef DEBUG - printf(" trying: 0x%08lx\n\r", claim_base); -#endif - addr = (unsigned long)claim(claim_base, size, 0); - if ((void *)addr != (void *)-1) - break; - } - if (addr == 0) - return 0; - claim_base = PAGE_ALIGN(claim_base + size); - return addr; -} - static int is_elf64(void *hdr) { Elf64_Ehdr *elf64 = hdr; @@ -169,16 +133,7 @@ static int is_elf64(void *hdr) vmlinux.size = (unsigned long)elf64ph->p_filesz + elfoffset; vmlinux.memsize = (unsigned long)elf64ph->p_memsz + elfoffset; -#if defined(PROG_START) - /* - * Maintain a "magic" minimum address. This keeps some older - * firmware platforms running. - */ - - if (claim_base < PROG_START) - claim_base = PROG_START; -#endif - + is_64bit = 1; return 1; } @@ -212,47 +167,9 @@ static int is_elf32(void *hdr) return 1; } -void export_cmdline(void* chosen_handle) -{ - int len; - char cmdline[2] = { 0, 0 }; - - if (builtin_cmdline[0] == 0) - return; - - len = getprop(chosen_handle, "bootargs", cmdline, sizeof(cmdline)); - if (len > 0 && cmdline[0] != 0) - return; - - setprop(chosen_handle, "bootargs", builtin_cmdline, - strlen(builtin_cmdline) + 1); -} - - -void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) +static void prep_kernel(unsigned long *a1, unsigned long *a2) { int len; - kernel_entry_t kernel_entry; - - memset(__bss_start, 0, _end - __bss_start); - - prom = (int (*)(void *)) promptr; - chosen_handle = finddevice("/chosen"); - if (chosen_handle == (void *) -1) - exit(); - if (getprop(chosen_handle, "stdout", &stdout, sizeof(stdout)) != 4) - exit(); - - printf("\n\rzImage starting: loaded at 0x%p (sp: 0x%p)\n\r", _start, sp); - - /* - * The first available claim_base must be above the end of the - * the loaded kernel wrapper file (_start to _end includes the - * initrd image if it is present) and rounded up to a nice - * 1 MB boundary for good measure. - */ - - claim_base = _ALIGN_UP((unsigned long)_end, ONE_MB); vmlinuz.addr = (unsigned long)_vmlinux_start; vmlinuz.size = (unsigned long)(_vmlinux_end - _vmlinux_start); @@ -263,43 +180,51 @@ void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) gunzip(elfheader, sizeof(elfheader), (unsigned char *)vmlinuz.addr, &len); } else - memcpy(elfheader, (const void *)vmlinuz.addr, sizeof(elfheader)); + memcpy(elfheader, (const void *)vmlinuz.addr, + sizeof(elfheader)); if (!is_elf64(elfheader) && !is_elf32(elfheader)) { printf("Error: not a valid PPC32 or PPC64 ELF file!\n\r"); exit(); } + if (platform_ops.image_hdr) + platform_ops.image_hdr(elfheader); - /* We need to claim the memsize plus the file offset since gzip + /* We need to alloc the memsize plus the file offset since gzip * will expand the header (file offset), then the kernel, then * possible rubbish we don't care about. But the kernel bss must * be claimed (it will be zero'd by the kernel itself) */ printf("Allocating 0x%lx bytes for kernel ...\n\r", vmlinux.memsize); - vmlinux.addr = try_claim(vmlinux.memsize); + vmlinux.addr = (unsigned long)malloc(vmlinux.memsize); if (vmlinux.addr == 0) { printf("Can't allocate memory for kernel image !\n\r"); exit(); } /* - * Now we try to claim memory for the initrd (and copy it there) + * Now we try to alloc memory for the initrd (and copy it there) */ initrd.size = (unsigned long)(_initrd_end - _initrd_start); initrd.memsize = initrd.size; if ( initrd.size > 0 ) { - printf("Allocating 0x%lx bytes for initrd ...\n\r", initrd.size); - initrd.addr = try_claim(initrd.size); + printf("Allocating 0x%lx bytes for initrd ...\n\r", + initrd.size); + initrd.addr = (unsigned long)malloc((u32)initrd.size); if (initrd.addr == 0) { - printf("Can't allocate memory for initial ramdisk !\n\r"); + printf("Can't allocate memory for initial " + "ramdisk !\n\r"); exit(); } - a1 = initrd.addr; - a2 = initrd.size; - printf("initial ramdisk moving 0x%lx <- 0x%lx (0x%lx bytes)\n\r", - initrd.addr, (unsigned long)_initrd_start, initrd.size); - memmove((void *)initrd.addr, (void *)_initrd_start, initrd.size); - printf("initrd head: 0x%lx\n\r", *((unsigned long *)initrd.addr)); + *a1 = initrd.addr; + *a2 = initrd.size; + printf("initial ramdisk moving 0x%lx <- 0x%lx " + "(0x%lx bytes)\n\r", initrd.addr, + (unsigned long)_initrd_start, initrd.size); + memmove((void *)initrd.addr, (void *)_initrd_start, + initrd.size); + printf("initrd head: 0x%lx\n\r", + *((unsigned long *)initrd.addr)); } /* Eventually gunzip the kernel */ @@ -311,11 +236,10 @@ void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) (unsigned char *)vmlinuz.addr, &len); printf("done 0x%lx bytes\n\r", len); } else { - memmove((void *)vmlinux.addr,(void *)vmlinuz.addr,vmlinuz.size); + memmove((void *)vmlinux.addr,(void *)vmlinuz.addr, + vmlinuz.size); } - export_cmdline(chosen_handle); - /* Skip over the ELF header */ #ifdef DEBUG printf("... skipping 0x%lx bytes of ELF header\n\r", @@ -324,23 +248,107 @@ void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) vmlinux.addr += elfoffset; flush_cache((void *)vmlinux.addr, vmlinux.size); +} - kernel_entry = (kernel_entry_t)vmlinux.addr; -#ifdef DEBUG - printf( "kernel:\n\r" - " entry addr = 0x%lx\n\r" - " a1 = 0x%lx,\n\r" - " a2 = 0x%lx,\n\r" - " prom = 0x%lx,\n\r" - " bi_recs = 0x%lx,\n\r", - (unsigned long)kernel_entry, a1, a2, - (unsigned long)prom, NULL); -#endif +void __attribute__ ((weak)) ft_init(void *dt_blob) +{ +} - kernel_entry(a1, a2, prom, NULL); +/* A buffer that may be edited by tools operating on a zImage binary so as to + * edit the command line passed to vmlinux (by setting /chosen/bootargs). + * The buffer is put in it's own section so that tools may locate it easier. + */ +static char builtin_cmdline[COMMAND_LINE_SIZE] + __attribute__((__section__("__builtin_cmdline"))); - printf("Error: Linux kernel returned to zImage bootloader!\n\r"); +static void get_cmdline(char *buf, int size) +{ + void *devp; + int len = strlen(builtin_cmdline); - exit(); + buf[0] = '\0'; + + if (len > 0) { /* builtin_cmdline overrides dt's /chosen/bootargs */ + len = min(len, size-1); + strncpy(buf, builtin_cmdline, len); + buf[len] = '\0'; + } + else if ((devp = finddevice("/chosen"))) + getprop(devp, "bootargs", buf, size); +} + +static void set_cmdline(char *buf) +{ + void *devp; + + if ((devp = finddevice("/chosen"))) + setprop(devp, "bootargs", buf, strlen(buf) + 1); } +/* Section where ft can be tacked on after zImage is built */ +union blobspace { + struct boot_param_header hdr; + char space[8*1024]; +} dt_blob __attribute__((__section__("__builtin_ft"))); + +struct platform_ops platform_ops; +struct dt_ops dt_ops; +struct console_ops console_ops; + +void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) +{ + int have_dt = 0; + kernel_entry_t kentry; + char cmdline[COMMAND_LINE_SIZE]; + + memset(__bss_start, 0, _end - __bss_start); + memset(&platform_ops, 0, sizeof(platform_ops)); + memset(&dt_ops, 0, sizeof(dt_ops)); + memset(&console_ops, 0, sizeof(console_ops)); + + /* Override the dt_ops and device tree if there was an flat dev + * tree attached to the zImage. + */ + if (dt_blob.hdr.magic == OF_DT_HEADER) { + have_dt = 1; + ft_init(&dt_blob); + } + + if (platform_init(promptr)) + exit(); + if (console_ops.open && (console_ops.open() < 0)) + exit(); + if (platform_ops.fixups) + platform_ops.fixups(); + + printf("\n\rzImage starting: loaded at 0x%p (sp: 0x%p)\n\r", + _start, sp); + + prep_kernel(&a1, &a2); + + /* If cmdline came from zimage wrapper or if we can edit the one + * in the dt, print it out and edit it, if possible. + */ + if ((strlen(builtin_cmdline) > 0) || console_ops.edit_cmdline) { + get_cmdline(cmdline, COMMAND_LINE_SIZE); + printf("\n\rLinux/PowerPC load: %s", cmdline); + if (console_ops.edit_cmdline) + console_ops.edit_cmdline(cmdline, COMMAND_LINE_SIZE); + printf("\n\r"); + set_cmdline(cmdline); + } + + if (console_ops.close) + console_ops.close(); + + kentry = (kernel_entry_t) vmlinux.addr; + if (have_dt) + kentry(dt_ops.ft_addr(), 0, NULL); + else + /* XXX initrd addr/size should be passed in properties */ + kentry(a1, a2, promptr); + + /* console closed so printf below may not work */ + printf("Error: Linux kernel returned to zImage boot wrapper!\n\r"); + exit(); +} diff --git a/arch/powerpc/boot/prom.c b/arch/powerpc/boot/of.c index fa0057736f6..fd99f789a37 100644 --- a/arch/powerpc/boot/prom.c +++ b/arch/powerpc/boot/of.c @@ -8,15 +8,29 @@ */ #include <stdarg.h> #include <stddef.h> +#include "types.h" +#include "elf.h" #include "string.h" #include "stdio.h" -#include "prom.h" +#include "page.h" +#include "ops.h" -int (*prom)(void *); -phandle chosen_handle; -ihandle stdout; +typedef void *ihandle; +typedef void *phandle; -int call_prom(const char *service, int nargs, int nret, ...) +extern char _end[]; + +/* Value picked to match that used by yaboot */ +#define PROG_START 0x01400000 /* only used on 64-bit systems */ +#define RAM_END (512<<20) /* Fixme: use OF */ +#define ONE_MB 0x100000 + +int (*prom) (void *); + + +static unsigned long claim_base; + +static int call_prom(const char *service, int nargs, int nret, ...) { int i; struct prom_args { @@ -45,7 +59,7 @@ int call_prom(const char *service, int nargs, int nret, ...) return (nret > 0)? args.args[nargs]: 0; } -int call_prom_ret(const char *service, int nargs, int nret, +static int call_prom_ret(const char *service, int nargs, int nret, unsigned int *rets, ...) { int i; @@ -79,11 +93,6 @@ int call_prom_ret(const char *service, int nargs, int nret, return (nret > 0)? args.args[nargs]: 0; } -int write(void *handle, void *ptr, int nb) -{ - return call_prom("write", 3, 1, handle, ptr, nb); -} - /* * Older OF's require that when claiming a specific range of addresses, * we claim the physical space in the /memory node and the virtual @@ -142,7 +151,7 @@ static int check_of_version(void) return 1; } -void *claim(unsigned long virt, unsigned long size, unsigned long align) +static void *claim(unsigned long virt, unsigned long size, unsigned long align) { int ret; unsigned int result; @@ -151,7 +160,7 @@ void *claim(unsigned long virt, unsigned long size, unsigned long align) need_map = check_of_version(); if (align || !need_map) return (void *) call_prom("claim", 3, 1, virt, size, align); - + ret = call_prom_ret("call-method", 5, 2, &result, "claim", memory, align, size, virt); if (ret != 0 || result == -1) @@ -163,3 +172,112 @@ void *claim(unsigned long virt, unsigned long size, unsigned long align) 0x12, size, virt, virt); return (void *) virt; } + +static void *of_try_claim(u32 size) +{ + unsigned long addr = 0; + static u8 first_time = 1; + + if (first_time) { + claim_base = _ALIGN_UP((unsigned long)_end, ONE_MB); + first_time = 0; + } + + for(; claim_base < RAM_END; claim_base += ONE_MB) { +#ifdef DEBUG + printf(" trying: 0x%08lx\n\r", claim_base); +#endif + addr = (unsigned long)claim(claim_base, size, 0); + if ((void *)addr != (void *)-1) + break; + } + if (addr == 0) + return NULL; + claim_base = PAGE_ALIGN(claim_base + size); + return (void *)addr; +} + +static void of_image_hdr(const void *hdr) +{ + const Elf64_Ehdr *elf64 = hdr; + + if (elf64->e_ident[EI_CLASS] == ELFCLASS64) { + /* + * Maintain a "magic" minimum address. This keeps some older + * firmware platforms running. + */ + if (claim_base < PROG_START) + claim_base = PROG_START; + } +} + +static void of_exit(void) +{ + call_prom("exit", 0, 0); +} + +/* + * OF device tree routines + */ +static void *of_finddevice(const char *name) +{ + return (phandle) call_prom("finddevice", 1, 1, name); +} + +static int of_getprop(const void *phandle, const char *name, void *buf, + const int buflen) +{ + return call_prom("getprop", 4, 1, phandle, name, buf, buflen); +} + +static int of_setprop(const void *phandle, const char *name, const void *buf, + const int buflen) +{ + return call_prom("setprop", 4, 1, phandle, name, buf, buflen); +} + +/* + * OF console routines + */ +static void *of_stdout_handle; + +static int of_console_open(void) +{ + void *devp; + + if (((devp = finddevice("/chosen")) != NULL) + && (getprop(devp, "stdout", &of_stdout_handle, + sizeof(of_stdout_handle)) + == sizeof(of_stdout_handle))) + return 0; + + return -1; +} + +static void of_console_write(char *buf, int len) +{ + call_prom("write", 3, 1, of_stdout_handle, buf, len); +} + +int platform_init(void *promptr) +{ + platform_ops.fixups = NULL; + platform_ops.image_hdr = of_image_hdr; + platform_ops.malloc = of_try_claim; + platform_ops.free = NULL; + platform_ops.exit = of_exit; + + dt_ops.finddevice = of_finddevice; + dt_ops.getprop = of_getprop; + dt_ops.setprop = of_setprop; + dt_ops.translate_addr = NULL; + + console_ops.open = of_console_open; + console_ops.write = of_console_write; + console_ops.edit_cmdline = NULL; + console_ops.close = NULL; + console_ops.data = NULL; + + prom = (int (*)(void *))promptr; + return 0; +} diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h new file mode 100644 index 00000000000..135eb4bb03b --- /dev/null +++ b/arch/powerpc/boot/ops.h @@ -0,0 +1,100 @@ +/* + * Global definition of all the bootwrapper operations. + * + * Author: Mark A. Greer <mgreer@mvista.com> + * + * 2006 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ +#ifndef _PPC_BOOT_OPS_H_ +#define _PPC_BOOT_OPS_H_ + +#include "types.h" + +#define COMMAND_LINE_SIZE 512 +#define MAX_PATH_LEN 256 +#define MAX_PROP_LEN 256 /* What should this be? */ + +/* Platform specific operations */ +struct platform_ops { + void (*fixups)(void); + void (*image_hdr)(const void *); + void * (*malloc)(u32 size); + void (*free)(void *ptr, u32 size); + void (*exit)(void); +}; +extern struct platform_ops platform_ops; + +/* Device Tree operations */ +struct dt_ops { + void * (*finddevice)(const char *name); + int (*getprop)(const void *node, const char *name, void *buf, + const int buflen); + int (*setprop)(const void *node, const char *name, + const void *buf, const int buflen); + u64 (*translate_addr)(const char *path, const u32 *in_addr, + const u32 addr_len); + unsigned long (*ft_addr)(void); +}; +extern struct dt_ops dt_ops; + +/* Console operations */ +struct console_ops { + int (*open)(void); + void (*write)(char *buf, int len); + void (*edit_cmdline)(char *buf, int len); + void (*close)(void); + void *data; +}; +extern struct console_ops console_ops; + +/* Serial console operations */ +struct serial_console_data { + int (*open)(void); + void (*putc)(unsigned char c); + unsigned char (*getc)(void); + u8 (*tstc)(void); + void (*close)(void); +}; + +extern int platform_init(void *promptr); +extern void simple_alloc_init(void); +extern void ft_init(void *dt_blob); +extern int serial_console_init(void); + +static inline void *finddevice(const char *name) +{ + return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL; +} + +static inline int getprop(void *devp, const char *name, void *buf, int buflen) +{ + return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1; +} + +static inline int setprop(void *devp, const char *name, void *buf, int buflen) +{ + return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1; +} + +static inline void *malloc(u32 size) +{ + return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL; +} + +static inline void free(void *ptr, u32 size) +{ + if (platform_ops.free) + platform_ops.free(ptr, size); +} + +static inline void exit(void) +{ + if (platform_ops.exit) + platform_ops.exit(); + for(;;); +} + +#endif /* _PPC_BOOT_OPS_H_ */ diff --git a/arch/powerpc/boot/prom.h b/arch/powerpc/boot/prom.h deleted file mode 100644 index a57b184c564..00000000000 --- a/arch/powerpc/boot/prom.h +++ /dev/null @@ -1,41 +0,0 @@ -#ifndef _PPC_BOOT_PROM_H_ -#define _PPC_BOOT_PROM_H_ - -typedef void *phandle; -typedef void *ihandle; - -extern int (*prom) (void *); -extern phandle chosen_handle; -extern ihandle stdout; - -int call_prom(const char *service, int nargs, int nret, ...); -int call_prom_ret(const char *service, int nargs, int nret, - unsigned int *rets, ...); - -extern int write(void *handle, void *ptr, int nb); -extern void *claim(unsigned long virt, unsigned long size, unsigned long aln); - -static inline void exit(void) -{ - call_prom("exit", 0, 0); -} - -static inline phandle finddevice(const char *name) -{ - return (phandle) call_prom("finddevice", 1, 1, name); -} - -static inline int getprop(void *phandle, const char *name, - void *buf, int buflen) -{ - return call_prom("getprop", 4, 1, phandle, name, buf, buflen); -} - - -static inline int setprop(void *phandle, const char *name, - void *buf, int buflen) -{ - return call_prom("setprop", 4, 1, phandle, name, buf, buflen); -} - -#endif /* _PPC_BOOT_PROM_H_ */ diff --git a/arch/powerpc/boot/stdio.c b/arch/powerpc/boot/stdio.c index b5aa522f8b7..6d5f6382e1c 100644 --- a/arch/powerpc/boot/stdio.c +++ b/arch/powerpc/boot/stdio.c @@ -10,7 +10,7 @@ #include <stddef.h> #include "string.h" #include "stdio.h" -#include "prom.h" +#include "ops.h" size_t strnlen(const char * s, size_t count) { @@ -320,6 +320,6 @@ printf(const char *fmt, ...) va_start(args, fmt); n = vsprintf(sprint_buf, fmt, args); va_end(args); - write(stdout, sprint_buf, n); + console_ops.write(sprint_buf, n); return n; } diff --git a/arch/powerpc/boot/stdio.h b/arch/powerpc/boot/stdio.h index eb9e16c87ae..73b8a91bfb3 100644 --- a/arch/powerpc/boot/stdio.h +++ b/arch/powerpc/boot/stdio.h @@ -1,8 +1,16 @@ #ifndef _PPC_BOOT_STDIO_H_ #define _PPC_BOOT_STDIO_H_ +#include <stdarg.h> + +#define ENOMEM 12 /* Out of Memory */ +#define EINVAL 22 /* Invalid argument */ +#define ENOSPC 28 /* No space left on device */ + extern int printf(const char *fmt, ...); +#define fprintf(fmt, args...) printf(args) + extern int sprintf(char *buf, const char *fmt, ...); extern int vsprintf(char *buf, const char *fmt, va_list args); diff --git a/arch/powerpc/boot/types.h b/arch/powerpc/boot/types.h new file mode 100644 index 00000000000..79d26e70867 --- /dev/null +++ b/arch/powerpc/boot/types.h @@ -0,0 +1,23 @@ +#ifndef _TYPES_H_ +#define _TYPES_H_ + +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +typedef unsigned char u8; +typedef unsigned short u16; +typedef unsigned int u32; +typedef unsigned long long u64; + +#define min(x,y) ({ \ + typeof(x) _x = (x); \ + typeof(y) _y = (y); \ + (void) (&_x == &_y); \ + _x < _y ? _x : _y; }) + +#define max(x,y) ({ \ + typeof(x) _x = (x); \ + typeof(y) _y = (y); \ + (void) (&_x == &_y); \ + _x > _y ? _x : _y; }) + +#endif /* _TYPES_H_ */ diff --git a/arch/powerpc/configs/maple_defconfig b/arch/powerpc/configs/maple_defconfig index 2860be106f4..62ba66091a1 100644 --- a/arch/powerpc/configs/maple_defconfig +++ b/arch/powerpc/configs/maple_defconfig @@ -496,7 +496,7 @@ CONFIG_E1000=y # CONFIG_SKY2 is not set # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set -# CONFIG_TIGON3 is not set +CONFIG_TIGON3=y # CONFIG_BNX2 is not set # CONFIG_MV643XX_ETH is not set diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 7d32ad0194a..8b133afbdc2 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -16,7 +16,7 @@ obj-y := semaphore.o cputable.o ptrace.o syscalls.o \ obj-y += vdso32/ obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \ signal_64.o ptrace32.o \ - paca.o cpu_setup_power4.o \ + paca.o cpu_setup_ppc970.o \ firmware.o sysfs.o obj-$(CONFIG_PPC64) += vdso64/ obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o @@ -51,7 +51,7 @@ extra-$(CONFIG_8xx) := head_8xx.o extra-y += vmlinux.lds obj-y += time.o prom.o traps.o setup-common.o \ - udbg.o misc.o + udbg.o misc.o io.o obj-$(CONFIG_PPC32) += entry_32.o setup_32.o misc_32.o obj-$(CONFIG_PPC64) += misc_64.o dma_64.o iommu.o obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 7ee84968087..d06f378597b 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -40,9 +40,10 @@ #ifdef CONFIG_PPC64 #include <asm/paca.h> #include <asm/lppaca.h> -#include <asm/iseries/hv_lp_event.h> #include <asm/cache.h> #include <asm/compat.h> +#include <asm/mmu.h> +#include <asm/hvcall.h> #endif #define DEFINE(sym, val) \ @@ -136,11 +137,18 @@ int main(void) DEFINE(PACA_STARTPURR, offsetof(struct paca_struct, startpurr)); DEFINE(PACA_USER_TIME, offsetof(struct paca_struct, user_time)); DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time)); + DEFINE(PACA_SLBSHADOWPTR, offsetof(struct paca_struct, slb_shadow_ptr)); + DEFINE(PACA_DATA_OFFSET, offsetof(struct paca_struct, data_offset)); + DEFINE(SLBSHADOW_STACKVSID, + offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].vsid)); + DEFINE(SLBSHADOW_STACKESID, + offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].esid)); DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0)); DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1)); DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int)); DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int)); + DEFINE(SLBSHADOW_SAVEAREA, offsetof(struct slb_shadow, save_area)); #endif /* CONFIG_PPC64 */ /* RTAS */ @@ -159,6 +167,12 @@ int main(void) /* Create extra stack space for SRR0 and SRR1 when calling prom/rtas. */ DEFINE(PROM_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16); DEFINE(RTAS_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16); + + /* hcall statistics */ + DEFINE(HCALL_STAT_SIZE, sizeof(struct hcall_stats)); + DEFINE(HCALL_STAT_CALLS, offsetof(struct hcall_stats, num_calls)); + DEFINE(HCALL_STAT_TB, offsetof(struct hcall_stats, tb_total)); + DEFINE(HCALL_STAT_PURR, offsetof(struct hcall_stats, purr_total)); #endif /* CONFIG_PPC64 */ DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0])); DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1])); @@ -240,6 +254,7 @@ int main(void) DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value)); DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features)); DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup)); + DEFINE(CPU_SPEC_RESTORE, offsetof(struct cpu_spec, cpu_restore)); #ifndef CONFIG_PPC64 DEFINE(pbe_address, offsetof(struct pbe, address)); diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c index f4e5e14ee2b..995fcef156f 100644 --- a/arch/powerpc/kernel/btext.c +++ b/arch/powerpc/kernel/btext.c @@ -158,35 +158,35 @@ int btext_initialize(struct device_node *np) { unsigned int width, height, depth, pitch; unsigned long address = 0; - u32 *prop; + const u32 *prop; - prop = (u32 *)get_property(np, "linux,bootx-width", NULL); + prop = get_property(np, "linux,bootx-width", NULL); if (prop == NULL) - prop = (u32 *)get_property(np, "width", NULL); + prop = get_property(np, "width", NULL); if (prop == NULL) return -EINVAL; width = *prop; - prop = (u32 *)get_property(np, "linux,bootx-height", NULL); + prop = get_property(np, "linux,bootx-height", NULL); if (prop == NULL) - prop = (u32 *)get_property(np, "height", NULL); + prop = get_property(np, "height", NULL); if (prop == NULL) return -EINVAL; height = *prop; - prop = (u32 *)get_property(np, "linux,bootx-depth", NULL); + prop = get_property(np, "linux,bootx-depth", NULL); if (prop == NULL) - prop = (u32 *)get_property(np, "depth", NULL); + prop = get_property(np, "depth", NULL); if (prop == NULL) return -EINVAL; depth = *prop; pitch = width * ((depth + 7) / 8); - prop = (u32 *)get_property(np, "linux,bootx-linebytes", NULL); + prop = get_property(np, "linux,bootx-linebytes", NULL); if (prop == NULL) - prop = (u32 *)get_property(np, "linebytes", NULL); + prop = get_property(np, "linebytes", NULL); if (prop) pitch = *prop; if (pitch == 1) pitch = 0x1000; - prop = (u32 *)get_property(np, "address", NULL); + prop = get_property(np, "address", NULL); if (prop) address = *prop; @@ -214,11 +214,11 @@ int btext_initialize(struct device_node *np) int __init btext_find_display(int allow_nonstdout) { - char *name; + const char *name; struct device_node *np = NULL; int rc = -ENODEV; - name = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + name = get_property(of_chosen, "linux,stdout-path", NULL); if (name != NULL) { np = of_find_node_by_path(name); if (np != NULL) { diff --git a/arch/powerpc/kernel/cpu_setup_power4.S b/arch/powerpc/kernel/cpu_setup_ppc970.S index 76e97aa71c4..652594891d5 100644 --- a/arch/powerpc/kernel/cpu_setup_power4.S +++ b/arch/powerpc/kernel/cpu_setup_ppc970.S @@ -16,27 +16,12 @@ #include <asm/asm-offsets.h> #include <asm/cache.h> -_GLOBAL(__970_cpu_preinit) - /* - * Do nothing if not running in HV mode - */ +_GLOBAL(__cpu_preinit_ppc970) + /* Do nothing if not running in HV mode */ mfmsr r0 rldicl. r0,r0,4,63 beqlr - /* - * Deal only with PPC970 and PPC970FX. - */ - mfspr r0,SPRN_PVR - srwi r0,r0,16 - cmpwi r0,0x39 - beq 1f - cmpwi r0,0x3c - beq 1f - cmpwi r0,0x44 - bnelr -1: - /* Make sure HID4:rm_ci is off before MMU is turned off, that large * pages are enabled with HID4:61 and clear HID5:DCBZ_size and * HID5:DCBZ32_ill @@ -72,23 +57,6 @@ _GLOBAL(__970_cpu_preinit) isync blr -_GLOBAL(__setup_cpu_ppc970) - mfspr r0,SPRN_HID0 - li r11,5 /* clear DOZE and SLEEP */ - rldimi r0,r11,52,8 /* set NAP and DPM */ - li r11,0 - rldimi r0,r11,32,31 /* clear EN_ATTN */ - mtspr SPRN_HID0,r0 - mfspr r0,SPRN_HID0 - mfspr r0,SPRN_HID0 - mfspr r0,SPRN_HID0 - mfspr r0,SPRN_HID0 - mfspr r0,SPRN_HID0 - mfspr r0,SPRN_HID0 - sync - isync - blr - /* Definitions for the table use to save CPU states */ #define CS_HID0 0 #define CS_HID1 8 @@ -103,33 +71,30 @@ cpu_state_storage: .balign L1_CACHE_BYTES,0 .text -/* Called in normal context to backup CPU 0 state. This - * does not include cache settings. This function is also - * called for machine sleep. This does not include the MMU - * setup, BATs, etc... but rather the "special" registers - * like HID0, HID1, HID4, etc... - */ -_GLOBAL(__save_cpu_setup) - /* Some CR fields are volatile, we back it up all */ - mfcr r7 - - /* Get storage ptr */ - LOAD_REG_IMMEDIATE(r5,cpu_state_storage) - /* We only deal with 970 for now */ - mfspr r0,SPRN_PVR - srwi r0,r0,16 - cmpwi r0,0x39 - beq 1f - cmpwi r0,0x3c - beq 1f - cmpwi r0,0x44 - bne 2f - -1: /* skip if not running in HV mode */ +_GLOBAL(__setup_cpu_ppc970) + /* Do nothing if not running in HV mode */ mfmsr r0 rldicl. r0,r0,4,63 - beq 2f + beqlr + + mfspr r0,SPRN_HID0 + li r11,5 /* clear DOZE and SLEEP */ + rldimi r0,r11,52,8 /* set NAP and DPM */ + li r11,0 + rldimi r0,r11,32,31 /* clear EN_ATTN */ + mtspr SPRN_HID0,r0 + mfspr r0,SPRN_HID0 + mfspr r0,SPRN_HID0 + mfspr r0,SPRN_HID0 + mfspr r0,SPRN_HID0 + mfspr r0,SPRN_HID0 + mfspr r0,SPRN_HID0 + sync + isync + + /* Save away cpu state */ + LOAD_REG_IMMEDIATE(r5,cpu_state_storage) /* Save HID0,1,4 and 5 */ mfspr r3,SPRN_HID0 @@ -141,35 +106,19 @@ _GLOBAL(__save_cpu_setup) mfspr r3,SPRN_HID5 std r3,CS_HID5(r5) -2: - mtcr r7 blr /* Called with no MMU context (typically MSR:IR/DR off) to * restore CPU state as backed up by the previous * function. This does not include cache setting */ -_GLOBAL(__restore_cpu_setup) - /* Get storage ptr (FIXME when using anton reloc as we - * are running with translation disabled here - */ - LOAD_REG_IMMEDIATE(r5,cpu_state_storage) - - /* We only deal with 970 for now */ - mfspr r0,SPRN_PVR - srwi r0,r0,16 - cmpwi r0,0x39 - beq 1f - cmpwi r0,0x3c - beq 1f - cmpwi r0,0x44 - bnelr - -1: /* skip if not running in HV mode */ +_GLOBAL(__restore_cpu_ppc970) + /* Do nothing if not running in HV mode */ mfmsr r0 rldicl. r0,r0,4,63 beqlr + LOAD_REG_IMMEDIATE(r5,cpu_state_storage) /* Before accessing memory, we make sure rm_ci is clear */ li r0,0 mfspr r3,SPRN_HID4 diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 272e43622fd..190a57e2076 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -39,7 +39,10 @@ extern void __setup_cpu_7400(unsigned long offset, struct cpu_spec* spec); extern void __setup_cpu_7410(unsigned long offset, struct cpu_spec* spec); extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec); #endif /* CONFIG_PPC32 */ +#ifdef CONFIG_PPC64 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec); +extern void __restore_cpu_ppc970(void); +#endif /* CONFIG_PPC64 */ /* This table only contains "desktop" CPUs, it need to be filled with embedded * ones as well... @@ -55,6 +58,9 @@ extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec); #define COMMON_USER_POWER6 (COMMON_USER_PPC64 | PPC_FEATURE_ARCH_2_05 |\ PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP | \ PPC_FEATURE_TRUE_LE) +#define COMMON_USER_PA6T (COMMON_USER_PPC64 | PPC_FEATURE_PA6T |\ + PPC_FEATURE_TRUE_LE | \ + PPC_FEATURE_HAS_ALTIVEC_COMP) #define COMMON_USER_BOOKE (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \ PPC_FEATURE_BOOKE) @@ -184,6 +190,7 @@ struct cpu_spec cpu_specs[] = { .dcache_bsize = 128, .num_pmcs = 8, .cpu_setup = __setup_cpu_ppc970, + .cpu_restore = __restore_cpu_ppc970, .oprofile_cpu_type = "ppc64/970", .oprofile_type = PPC_OPROFILE_POWER4, .platform = "ppc970", @@ -199,6 +206,7 @@ struct cpu_spec cpu_specs[] = { .dcache_bsize = 128, .num_pmcs = 8, .cpu_setup = __setup_cpu_ppc970, + .cpu_restore = __restore_cpu_ppc970, .oprofile_cpu_type = "ppc64/970", .oprofile_type = PPC_OPROFILE_POWER4, .platform = "ppc970", @@ -214,6 +222,7 @@ struct cpu_spec cpu_specs[] = { .dcache_bsize = 128, .num_pmcs = 8, .cpu_setup = __setup_cpu_ppc970, + .cpu_restore = __restore_cpu_ppc970, .oprofile_cpu_type = "ppc64/970", .oprofile_type = PPC_OPROFILE_POWER4, .platform = "ppc970", @@ -280,6 +289,17 @@ struct cpu_spec cpu_specs[] = { .dcache_bsize = 128, .platform = "ppc-cell-be", }, + { /* PA Semi PA6T */ + .pvr_mask = 0x7fff0000, + .pvr_value = 0x00900000, + .cpu_name = "PA6T", + .cpu_features = CPU_FTRS_PA6T, + .cpu_user_features = COMMON_USER_PA6T, + .icache_bsize = 64, + .dcache_bsize = 64, + .num_pmcs = 6, + .platform = "pa6t", + }, { /* default match */ .pvr_mask = 0x00000000, .pvr_value = 0x00000000, @@ -929,6 +949,7 @@ struct cpu_spec cpu_specs[] = { PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC, .icache_bsize = 32, .dcache_bsize = 32, + .platform = "ppc405", }, { /* 405EP */ .pvr_mask = 0xffff0000, diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c index 371973be8d7..2f6f5a7bc69 100644 --- a/arch/powerpc/kernel/crash_dump.c +++ b/arch/powerpc/kernel/crash_dump.c @@ -80,7 +80,7 @@ static int __init parse_savemaxmem(char *p) } __setup("savemaxmem=", parse_savemaxmem); -/* +/** * copy_oldmem_page - copy one page from "oldmem" * @pfn: page frame number to be copied * @buf: target memory address for the copy; this can be in kernel address diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c index 36aaa7663f0..6c168f6ea14 100644 --- a/arch/powerpc/kernel/dma_64.c +++ b/arch/powerpc/kernel/dma_64.c @@ -35,10 +35,9 @@ int dma_supported(struct device *dev, u64 mask) { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->dma_supported(dev, mask); - BUG(); - return 0; + BUG_ON(!dma_ops); + + return dma_ops->dma_supported(dev, mask); } EXPORT_SYMBOL(dma_supported); @@ -66,10 +65,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->alloc_coherent(dev, size, dma_handle, flag); - BUG(); - return NULL; + BUG_ON(!dma_ops); + + return dma_ops->alloc_coherent(dev, size, dma_handle, flag); } EXPORT_SYMBOL(dma_alloc_coherent); @@ -78,10 +76,9 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); } EXPORT_SYMBOL(dma_free_coherent); @@ -90,10 +87,9 @@ dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->map_single(dev, cpu_addr, size, direction); - BUG(); - return (dma_addr_t)0; + BUG_ON(!dma_ops); + + return dma_ops->map_single(dev, cpu_addr, size, direction); } EXPORT_SYMBOL(dma_map_single); @@ -102,10 +98,9 @@ void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->unmap_single(dev, dma_addr, size, direction); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->unmap_single(dev, dma_addr, size, direction); } EXPORT_SYMBOL(dma_unmap_single); @@ -115,11 +110,10 @@ dma_addr_t dma_map_page(struct device *dev, struct page *page, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->map_single(dev, - (page_address(page) + offset), size, direction); - BUG(); - return (dma_addr_t)0; + BUG_ON(!dma_ops); + + return dma_ops->map_single(dev, page_address(page) + offset, size, + direction); } EXPORT_SYMBOL(dma_map_page); @@ -128,10 +122,9 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->unmap_single(dev, dma_address, size, direction); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->unmap_single(dev, dma_address, size, direction); } EXPORT_SYMBOL(dma_unmap_page); @@ -140,10 +133,9 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->map_sg(dev, sg, nents, direction); - BUG(); - return 0; + BUG_ON(!dma_ops); + + return dma_ops->map_sg(dev, sg, nents, direction); } EXPORT_SYMBOL(dma_map_sg); @@ -152,9 +144,8 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->unmap_sg(dev, sg, nhwentries, direction); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->unmap_sg(dev, sg, nhwentries, direction); } EXPORT_SYMBOL(dma_unmap_sg); diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 54d9f5cdaab..2cd872b5283 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -375,6 +375,14 @@ BEGIN_FTR_SECTION ld r7,KSP_VSID(r4) /* Get new stack's VSID */ oris r0,r6,(SLB_ESID_V)@h ori r0,r0,(SLB_NUM_BOLTED-1)@l + + /* Update the last bolted SLB */ + ld r9,PACA_SLBSHADOWPTR(r13) + li r12,0 + std r12,SLBSHADOW_STACKESID(r9) /* Clear ESID */ + std r7,SLBSHADOW_STACKVSID(r9) /* Save VSID */ + std r0,SLBSHADOW_STACKESID(r9) /* Save ESID */ + slbie r6 slbie r6 /* Workaround POWER5 < DD2.1 issue */ slbmte r7,r0 diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 6ff3cf50608..3065b472b95 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -132,7 +132,7 @@ _GLOBAL(__secondary_hold) bne 100b #if defined(CONFIG_SMP) || defined(CONFIG_KEXEC) - LOAD_REG_IMMEDIATE(r4, .pSeries_secondary_smp_init) + LOAD_REG_IMMEDIATE(r4, .generic_secondary_smp_init) mtctr r4 mr r3,r24 bctr @@ -1484,19 +1484,17 @@ fwnmi_data_area: . = 0x8000 /* - * On pSeries, secondary processors spin in the following code. + * On pSeries and most other platforms, secondary processors spin + * in the following code. * At entry, r3 = this processor's number (physical cpu id) */ -_GLOBAL(pSeries_secondary_smp_init) +_GLOBAL(generic_secondary_smp_init) mr r24,r3 /* turn on 64-bit mode */ bl .enable_64b_mode isync - /* Copy some CPU settings from CPU 0 */ - bl .__restore_cpu_setup - /* Set up a paca value for this processor. Since we have the * physical cpu id in r24, we need to search the pacas to find * which logical id maps to our physical one. @@ -1522,15 +1520,28 @@ _GLOBAL(pSeries_secondary_smp_init) /* start. */ sync - /* Create a temp kernel stack for use before relocation is on. */ +#ifndef CONFIG_SMP + b 3b /* Never go on non-SMP */ +#else + cmpwi 0,r23,0 + beq 3b /* Loop until told to go */ + + /* See if we need to call a cpu state restore handler */ + LOAD_REG_IMMEDIATE(r23, cur_cpu_spec) + ld r23,0(r23) + ld r23,CPU_SPEC_RESTORE(r23) + cmpdi 0,r23,0 + beq 4f + ld r23,0(r23) + mtctr r23 + bctrl + +4: /* Create a temp kernel stack for use before relocation is on. */ ld r1,PACAEMERGSP(r13) subi r1,r1,STACK_FRAME_OVERHEAD - cmpwi 0,r23,0 -#ifdef CONFIG_SMP - bne .__secondary_start + b .__secondary_start #endif - b 3b /* Loop until told to go */ #ifdef CONFIG_PPC_ISERIES _STATIC(__start_initialization_iSeries) @@ -1611,7 +1622,16 @@ _GLOBAL(__start_initialization_multiplatform) bl .enable_64b_mode /* Setup some critical 970 SPRs before switching MMU off */ - bl .__970_cpu_preinit + mfspr r0,SPRN_PVR + srwi r0,r0,16 + cmpwi r0,0x39 /* 970 */ + beq 1f + cmpwi r0,0x3c /* 970FX */ + beq 1f + cmpwi r0,0x44 /* 970MP */ + bne 2f +1: bl .__cpu_preinit_ppc970 +2: /* Switch off MMU if not already */ LOAD_REG_IMMEDIATE(r4, .__after_prom_start - KERNELBASE) @@ -1728,7 +1748,7 @@ _STATIC(__after_prom_start) _GLOBAL(copy_and_flush) addi r5,r5,-8 addi r6,r6,-8 -4: li r0,16 /* Use the least common */ +4: li r0,8 /* Use the smallest common */ /* denominator cache line */ /* size. This results in */ /* extra cache line flushes */ @@ -1782,7 +1802,7 @@ _GLOBAL(pmac_secondary_start) isync /* Copy some CPU settings from CPU 0 */ - bl .__restore_cpu_setup + bl .__restore_cpu_ppc970 /* pSeries do that early though I don't think we really need it */ mfmsr r3 @@ -1932,12 +1952,6 @@ _STATIC(start_here_multiplatform) mr r5,r26 bl .identify_cpu - /* Save some low level config HIDs of CPU0 to be copied to - * other CPUs later on, or used for suspend/resume - */ - bl .__save_cpu_setup - sync - /* Do very early kernel initializations, including initial hash table, * stab and slb setup before we turn on relocation. */ diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index 68e5ab0443d..124dbcba94a 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -167,7 +167,7 @@ static DEVICE_ATTR(name, S_IRUSR | S_IRGRP | S_IROTH, ibmebusdev_show_name, NULL); static struct ibmebus_dev* __devinit ibmebus_register_device_common( - struct ibmebus_dev *dev, char *name) + struct ibmebus_dev *dev, const char *name) { int err = 0; @@ -194,10 +194,10 @@ static struct ibmebus_dev* __devinit ibmebus_register_device_node( struct device_node *dn) { struct ibmebus_dev *dev; - char *loc_code; + const char *loc_code; int length; - loc_code = (char *)get_property(dn, "ibm,loc-code", NULL); + loc_code = get_property(dn, "ibm,loc-code", NULL); if (!loc_code) { printk(KERN_WARNING "%s: node %s missing 'ibm,loc-code'\n", __FUNCTION__, dn->name ? dn->name : "<unknown>"); diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c new file mode 100644 index 00000000000..e98180686b3 --- /dev/null +++ b/arch/powerpc/kernel/io.c @@ -0,0 +1,131 @@ +/* + * I/O string operations + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * Copyright (C) 2006 IBM Corporation + * + * Largely rewritten by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras. + * + * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com) + * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com) + * + * Rewritten in C by Stephen Rothwell. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/compiler.h> +#include <linux/module.h> + +#include <asm/io.h> +#include <asm/firmware.h> +#include <asm/bug.h> + +void _insb(volatile u8 __iomem *port, void *buf, long count) +{ + u8 *tbuf = buf; + u8 tmp; + + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + if (unlikely(count <= 0)) + return; + asm volatile("sync"); + do { + tmp = *port; + asm volatile("eieio"); + *tbuf++ = tmp; + } while (--count != 0); + asm volatile("twi 0,%0,0; isync" : : "r" (tmp)); +} +EXPORT_SYMBOL(_insb); + +void _outsb(volatile u8 __iomem *port, const void *buf, long count) +{ + const u8 *tbuf = buf; + + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + if (unlikely(count <= 0)) + return; + asm volatile("sync"); + do { + *port = *tbuf++; + } while (--count != 0); + asm volatile("sync"); +} +EXPORT_SYMBOL(_outsb); + +void _insw_ns(volatile u16 __iomem *port, void *buf, long count) +{ + u16 *tbuf = buf; + u16 tmp; + + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + if (unlikely(count <= 0)) + return; + asm volatile("sync"); + do { + tmp = *port; + asm volatile("eieio"); + *tbuf++ = tmp; + } while (--count != 0); + asm volatile("twi 0,%0,0; isync" : : "r" (tmp)); +} +EXPORT_SYMBOL(_insw_ns); + +void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count) +{ + const u16 *tbuf = buf; + + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + if (unlikely(count <= 0)) + return; + asm volatile("sync"); + do { + *port = *tbuf++; + } while (--count != 0); + asm volatile("sync"); +} +EXPORT_SYMBOL(_outsw_ns); + +void _insl_ns(volatile u32 __iomem *port, void *buf, long count) +{ + u32 *tbuf = buf; + u32 tmp; + + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + if (unlikely(count <= 0)) + return; + asm volatile("sync"); + do { + tmp = *port; + asm volatile("eieio"); + *tbuf++ = tmp; + } while (--count != 0); + asm volatile("twi 0,%0,0; isync" : : "r" (tmp)); +} +EXPORT_SYMBOL(_insl_ns); + +void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count) +{ + const u32 *tbuf = buf; + + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + if (unlikely(count <= 0)) + return; + asm volatile("sync"); + do { + *port = *tbuf++; + } while (--count != 0); + asm volatile("sync"); +} +EXPORT_SYMBOL(_outsl_ns); diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 12c5971d656..b4432332341 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -52,6 +52,7 @@ #include <linux/radix-tree.h> #include <linux/mutex.h> #include <linux/bootmem.h> +#include <linux/pci.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -875,12 +876,14 @@ int pci_enable_msi(struct pci_dev * pdev) else return -1; } +EXPORT_SYMBOL(pci_enable_msi); void pci_disable_msi(struct pci_dev * pdev) { if (ppc_md.disable_msi) ppc_md.disable_msi(pdev); } +EXPORT_SYMBOL(pci_disable_msi); void pci_scan_msi_device(struct pci_dev *dev) {} int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) {return -1;} @@ -888,6 +891,8 @@ void pci_disable_msix(struct pci_dev *dev) {} void msi_remove_pci_irq_vectors(struct pci_dev *dev) {} void disable_msi_mode(struct pci_dev *dev, int pos, int type) {} void pci_no_msi(void) {} +EXPORT_SYMBOL(pci_enable_msix); +EXPORT_SYMBOL(pci_disable_msix); #endif diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 40a39291861..5e6ddfa474c 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -39,16 +39,17 @@ static int __init add_legacy_port(struct device_node *np, int want_index, phys_addr_t taddr, unsigned long irq, upf_t flags, int irq_check_parent) { - u32 *clk, *spd, clock = BASE_BAUD * 16; + const u32 *clk, *spd; + u32 clock = BASE_BAUD * 16; int index; /* get clock freq. if present */ - clk = (u32 *)get_property(np, "clock-frequency", NULL); + clk = get_property(np, "clock-frequency", NULL); if (clk && *clk) clock = *clk; /* get default speed if present */ - spd = (u32 *)get_property(np, "current-speed", NULL); + spd = get_property(np, "current-speed", NULL); /* If we have a location index, then try to use it */ if (want_index >= 0 && want_index < MAX_LEGACY_SERIAL_PORTS) @@ -113,7 +114,7 @@ static int __init add_legacy_soc_port(struct device_node *np, struct device_node *soc_dev) { u64 addr; - u32 *addrp; + const u32 *addrp; upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ; struct device_node *tsi = of_get_parent(np); @@ -144,15 +145,15 @@ static int __init add_legacy_soc_port(struct device_node *np, static int __init add_legacy_isa_port(struct device_node *np, struct device_node *isa_brg) { - u32 *reg; - char *typep; + const u32 *reg; + const char *typep; int index = -1; u64 taddr; DBG(" -> add_legacy_isa_port(%s)\n", np->full_name); /* Get the ISA port number */ - reg = (u32 *)get_property(np, "reg", NULL); + reg = get_property(np, "reg", NULL); if (reg == NULL) return -1; @@ -163,7 +164,7 @@ static int __init add_legacy_isa_port(struct device_node *np, /* Now look for an "ibm,aix-loc" property that gives us ordering * if any... */ - typep = (char *)get_property(np, "ibm,aix-loc", NULL); + typep = get_property(np, "ibm,aix-loc", NULL); /* If we have a location index, then use it */ if (typep && *typep == 'S') @@ -188,7 +189,7 @@ static int __init add_legacy_pci_port(struct device_node *np, struct device_node *pci_dev) { u64 addr, base; - u32 *addrp; + const u32 *addrp; unsigned int flags; int iotype, index = -1, lindex = 0; @@ -227,7 +228,7 @@ static int __init add_legacy_pci_port(struct device_node *np, * we get to their "reg" property */ if (np != pci_dev) { - u32 *reg = (u32 *)get_property(np, "reg", NULL); + const u32 *reg = get_property(np, "reg", NULL); if (reg && (*reg < 4)) index = lindex = *reg; } @@ -285,13 +286,13 @@ static void __init setup_legacy_serial_console(int console) void __init find_legacy_serial_ports(void) { struct device_node *np, *stdout = NULL; - char *path; + const char *path; int index; DBG(" -> find_legacy_serial_port()\n"); /* Now find out if one of these is out firmware console */ - path = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + path = get_property(of_chosen, "linux,stdout-path", NULL); if (path != NULL) { stdout = of_find_node_by_path(path); if (stdout) @@ -491,8 +492,8 @@ static int __init check_legacy_serial_console(void) { struct device_node *prom_stdout = NULL; int speed = 0, offset = 0; - char *name; - u32 *spd; + const char *name; + const u32 *spd; DBG(" -> check_legacy_serial_console()\n"); @@ -513,7 +514,7 @@ static int __init check_legacy_serial_console(void) } /* We are getting a weird phandle from OF ... */ /* ... So use the full path instead */ - name = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + name = get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) { DBG(" no linux,stdout-path !\n"); return -ENODEV; @@ -525,12 +526,12 @@ static int __init check_legacy_serial_console(void) } DBG("stdout is %s\n", prom_stdout->full_name); - name = (char *)get_property(prom_stdout, "name", NULL); + name = get_property(prom_stdout, "name", NULL); if (!name) { DBG(" stdout package has no name !\n"); goto not_found; } - spd = (u32 *)get_property(prom_stdout, "current-speed", NULL); + spd = get_property(prom_stdout, "current-speed", NULL); if (spd) speed = *spd; diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index 23f34daa044..41c05dcd68f 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -32,7 +32,6 @@ #include <asm/rtas.h> #include <asm/system.h> #include <asm/time.h> -#include <asm/iseries/it_exp_vpd_panel.h> #include <asm/prom.h> #include <asm/vdso_datapage.h> @@ -183,8 +182,14 @@ static unsigned int h_get_ppp(unsigned long *entitled, unsigned long *resource) { unsigned long rc; - rc = plpar_hcall_4out(H_GET_PPP, 0, 0, 0, 0, entitled, unallocated, - aggregation, resource); + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_GET_PPP, retbuf); + + *entitled = retbuf[0]; + *unallocated = retbuf[1]; + *aggregation = retbuf[2]; + *resource = retbuf[3]; log_plpar_hcall_return(rc, "H_GET_PPP"); @@ -194,8 +199,12 @@ static unsigned int h_get_ppp(unsigned long *entitled, static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs) { unsigned long rc; - unsigned long dummy; - rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy); + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_PIC, retbuf); + + *pool_idle_time = retbuf[0]; + *num_procs = retbuf[1]; if (rc != H_AUTHORITY) log_plpar_hcall_return(rc, "H_PIC"); @@ -310,12 +319,11 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v) int partition_potential_processors; int partition_active_processors; struct device_node *rtas_node; - int *lrdrp = NULL; + const int *lrdrp = NULL; rtas_node = find_path_device("/rtas"); if (rtas_node) - lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", - NULL); + lrdrp = get_property(rtas_node, "ibm,lrdr-capacity", NULL); if (lrdrp == NULL) { partition_potential_processors = vdso_data->processorCount; @@ -520,7 +528,8 @@ static int lparcfg_data(struct seq_file *m, void *v) const char *model = ""; const char *system_id = ""; const char *tmp; - unsigned int *lp_index_ptr, lp_index = 0; + const unsigned int *lp_index_ptr; + unsigned int lp_index = 0; seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS); @@ -540,8 +549,7 @@ static int lparcfg_data(struct seq_file *m, void *v) if (firmware_has_feature(FW_FEATURE_ISERIES)) system_id += 4; } - lp_index_ptr = (unsigned int *) - get_property(rootdn, "ibm,partition-no", NULL); + lp_index_ptr = get_property(rootdn, "ibm,partition-no", NULL); if (lp_index_ptr) lp_index = *lp_index_ptr; } diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index be58985c768..a24b09c2771 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -31,8 +31,8 @@ int default_machine_kexec_prepare(struct kimage *image) unsigned long begin, end; /* limits of segment */ unsigned long low, high; /* limits of blocked memory range */ struct device_node *node; - unsigned long *basep; - unsigned int *sizep; + const unsigned long *basep; + const unsigned int *sizep; if (!ppc_md.hpte_clear_all) return -ENOENT; @@ -72,10 +72,8 @@ int default_machine_kexec_prepare(struct kimage *image) /* We also should not overwrite the tce tables */ for (node = of_find_node_by_type(NULL, "pci"); node != NULL; node = of_find_node_by_type(node, "pci")) { - basep = (unsigned long *)get_property(node, "linux,tce-base", - NULL); - sizep = (unsigned int *)get_property(node, "linux,tce-size", - NULL); + basep = get_property(node, "linux,tce-base", NULL); + sizep = get_property(node, "linux,tce-size", NULL); if (basep == NULL || sizep == NULL) continue; diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S index f770805f121..330c9dc7db8 100644 --- a/arch/powerpc/kernel/misc.S +++ b/arch/powerpc/kernel/misc.S @@ -43,162 +43,3 @@ _GLOBAL(add_reloc_offset) add r3,r3,r5 mtlr r0 blr - -/* - * I/O string operations - * - * insb(port, buf, len) - * outsb(port, buf, len) - * insw(port, buf, len) - * outsw(port, buf, len) - * insl(port, buf, len) - * outsl(port, buf, len) - * insw_ns(port, buf, len) - * outsw_ns(port, buf, len) - * insl_ns(port, buf, len) - * outsl_ns(port, buf, len) - * - * The *_ns versions don't do byte-swapping. - */ -_GLOBAL(_insb) - sync - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,1 - blelr- -00: lbz r5,0(r3) - eieio - stbu r5,1(r4) - bdnz 00b - twi 0,r5,0 - isync - blr - -_GLOBAL(_outsb) - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,1 - blelr- - sync -00: lbzu r5,1(r4) - stb r5,0(r3) - bdnz 00b - sync - blr - -_GLOBAL(_insw) - sync - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,2 - blelr- -00: lhbrx r5,0,r3 - eieio - sthu r5,2(r4) - bdnz 00b - twi 0,r5,0 - isync - blr - -_GLOBAL(_outsw) - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,2 - blelr- - sync -00: lhzu r5,2(r4) - sthbrx r5,0,r3 - bdnz 00b - sync - blr - -_GLOBAL(_insl) - sync - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,4 - blelr- -00: lwbrx r5,0,r3 - eieio - stwu r5,4(r4) - bdnz 00b - twi 0,r5,0 - isync - blr - -_GLOBAL(_outsl) - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,4 - blelr- - sync -00: lwzu r5,4(r4) - stwbrx r5,0,r3 - bdnz 00b - sync - blr - -#ifdef CONFIG_PPC32 -_GLOBAL(__ide_mm_insw) -#endif -_GLOBAL(_insw_ns) - sync - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,2 - blelr- -00: lhz r5,0(r3) - eieio - sthu r5,2(r4) - bdnz 00b - twi 0,r5,0 - isync - blr - -#ifdef CONFIG_PPC32 -_GLOBAL(__ide_mm_outsw) -#endif -_GLOBAL(_outsw_ns) - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,2 - blelr- - sync -00: lhzu r5,2(r4) - sth r5,0(r3) - bdnz 00b - sync - blr - -#ifdef CONFIG_PPC32 -_GLOBAL(__ide_mm_insl) -#endif -_GLOBAL(_insl_ns) - sync - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,4 - blelr- -00: lwz r5,0(r3) - eieio - stwu r5,4(r4) - bdnz 00b - twi 0,r5,0 - isync - blr - -#ifdef CONFIG_PPC32 -_GLOBAL(__ide_mm_outsl) -#endif -_GLOBAL(_outsl_ns) - cmpwi 0,r5,0 - mtctr r5 - subi r4,r4,4 - blelr- - sync -00: lwzu r5,4(r4) - stw r5,0(r3) - bdnz 00b - sync - blr - diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c index 3262b73a3a6..397c83eda20 100644 --- a/arch/powerpc/kernel/of_device.c +++ b/arch/powerpc/kernel/of_device.c @@ -189,27 +189,9 @@ void of_release_dev(struct device *dev) int of_device_register(struct of_device *ofdev) { int rc; - struct of_device **odprop; BUG_ON(ofdev->node == NULL); - odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL); - if (!odprop) { - struct property *new_prop; - - new_prop = kmalloc(sizeof(struct property) + sizeof(struct of_device *), - GFP_KERNEL); - if (new_prop == NULL) - return -ENOMEM; - new_prop->name = "linux,device"; - new_prop->length = sizeof(sizeof(struct of_device *)); - new_prop->value = (unsigned char *)&new_prop[1]; - odprop = (struct of_device **)new_prop->value; - *odprop = NULL; - prom_add_property(ofdev->node, new_prop); - } - *odprop = ofdev; - rc = device_register(&ofdev->dev); if (rc) return rc; @@ -221,14 +203,8 @@ int of_device_register(struct of_device *ofdev) void of_device_unregister(struct of_device *ofdev) { - struct of_device **odprop; - device_remove_file(&ofdev->dev, &dev_attr_devspec); - odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL); - if (odprop) - *odprop = NULL; - device_unregister(&ofdev->dev); } diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index c68741fed14..55f1a25085c 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -17,6 +17,7 @@ #include <asm/lppaca.h> #include <asm/iseries/it_lp_reg_save.h> #include <asm/paca.h> +#include <asm/mmu.h> /* This symbol is provided by the linker - let it fill in the paca @@ -45,6 +46,17 @@ struct lppaca lppaca[] = { }, }; +/* + * 3 persistent SLBs are registered here. The buffer will be zero + * initially, hence will all be invaild until we actually write them. + */ +struct slb_shadow slb_shadow[] __cacheline_aligned = { + [0 ... (NR_CPUS-1)] = { + .persistent = SLB_NUM_BOLTED, + .buffer_length = sizeof(struct slb_shadow), + }, +}; + /* The Paca is an array with one entry per processor. Each contains an * lppaca, which contains the information shared between the * hypervisor and Linux. @@ -59,7 +71,8 @@ struct lppaca lppaca[] = { .lock_token = 0x8000, \ .paca_index = (number), /* Paca Index */ \ .kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \ - .hw_cpu_id = 0xffff, + .hw_cpu_id = 0xffff, \ + .slb_shadow_ptr = &slb_shadow[number], #ifdef CONFIG_PPC_ISERIES #define PACA_INIT_ISERIES(number) \ diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 09b1e1bbb29..9b49f8691d2 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -633,12 +633,12 @@ pcibios_alloc_controller(void) static void make_one_node_map(struct device_node* node, u8 pci_bus) { - int *bus_range; + const int *bus_range; int len; if (pci_bus >= pci_bus_count) return; - bus_range = (int *) get_property(node, "bus-range", &len); + bus_range = get_property(node, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, " "assuming it starts at 0\n", node->full_name); @@ -648,13 +648,13 @@ make_one_node_map(struct device_node* node, u8 pci_bus) for (node=node->child; node != 0;node = node->sibling) { struct pci_dev* dev; - unsigned int *class_code, *reg; + const unsigned int *class_code, *reg; - class_code = (unsigned int *) get_property(node, "class-code", NULL); + class_code = get_property(node, "class-code", NULL); if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) continue; - reg = (unsigned int *)get_property(node, "reg", NULL); + reg = get_property(node, "reg", NULL); if (!reg) continue; dev = pci_find_slot(pci_bus, ((reg[0] >> 8) & 0xff)); @@ -669,7 +669,7 @@ pcibios_make_OF_bus_map(void) { int i; struct pci_controller* hose; - u8* of_prop_map; + struct property *map_prop; pci_to_OF_bus_map = (u8*)kmalloc(pci_bus_count, GFP_KERNEL); if (!pci_to_OF_bus_map) { @@ -691,9 +691,12 @@ pcibios_make_OF_bus_map(void) continue; make_one_node_map(node, hose->first_busno); } - of_prop_map = get_property(find_path_device("/"), "pci-OF-bus-map", NULL); - if (of_prop_map) - memcpy(of_prop_map, pci_to_OF_bus_map, pci_bus_count); + map_prop = of_find_property(find_path_device("/"), + "pci-OF-bus-map", NULL); + if (map_prop) { + BUG_ON(pci_bus_count > map_prop->length); + memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count); + } #ifdef DEBUG printk("PCI->OF bus map:\n"); for (i=0; i<pci_bus_count; i++) { @@ -712,7 +715,7 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void* struct device_node* sub_node; for (; node != 0;node = node->sibling) { - unsigned int *class_code; + const unsigned int *class_code; if (filter(node, data)) return node; @@ -722,7 +725,7 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void* * a fake root for all functions of a multi-function device, * we go down them as well. */ - class_code = (unsigned int *) get_property(node, "class-code", NULL); + class_code = get_property(node, "class-code", NULL); if ((!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) && strcmp(node->name, "multifunc-device")) @@ -737,10 +740,10 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void* static int scan_OF_pci_childs_iterator(struct device_node* node, void* data) { - unsigned int *reg; + const unsigned int *reg; u8* fdata = (u8*)data; - reg = (unsigned int *) get_property(node, "reg", NULL); + reg = get_property(node, "reg", NULL); if (reg && ((reg[0] >> 8) & 0xff) == fdata[1] && ((reg[0] >> 16) & 0xff) == fdata[0]) return 1; @@ -841,7 +844,7 @@ find_OF_pci_device_filter(struct device_node* node, void* data) int pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn) { - unsigned int *reg; + const unsigned int *reg; struct pci_controller* hose; struct pci_dev* dev = NULL; @@ -854,7 +857,7 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn) if (!scan_OF_pci_childs(((struct device_node*)hose->arch_data)->child, find_OF_pci_device_filter, (void *)node)) return -ENODEV; - reg = (unsigned int *) get_property(node, "reg", NULL); + reg = get_property(node, "reg", NULL); if (!reg) return -ENODEV; *bus = (reg[0] >> 16) & 0xff; @@ -885,8 +888,8 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose, struct device_node *dev, int primary) { static unsigned int static_lc_ranges[256] __initdata; - unsigned int *dt_ranges, *lc_ranges, *ranges, *prev; - unsigned int size; + const unsigned int *dt_ranges; + unsigned int *lc_ranges, *ranges, *prev, size; int rlen = 0, orig_rlen; int memno = 0; struct resource *res; @@ -897,7 +900,7 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose, * that can have more than 3 ranges, fortunately using contiguous * addresses -- BenH */ - dt_ranges = (unsigned int *) get_property(dev, "ranges", &rlen); + dt_ranges = get_property(dev, "ranges", &rlen); if (!dt_ranges) return; /* Sanity check, though hopefully that never happens */ diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 138134c8c17..c1b1e14775e 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -185,34 +185,6 @@ static void __devinit pci_setup_pci_controller(struct pci_controller *hose) spin_unlock(&hose_spinlock); } -static void add_linux_pci_domain(struct device_node *dev, - struct pci_controller *phb) -{ - struct property *of_prop; - unsigned int size; - - of_prop = (struct property *) - get_property(dev, "linux,pci-domain", &size); - if (of_prop != NULL) - return; - WARN_ON(of_prop && size < sizeof(int)); - if (of_prop && size < sizeof(int)) - of_prop = NULL; - size = sizeof(struct property) + sizeof(int); - if (of_prop == NULL) { - if (mem_init_done) - of_prop = kmalloc(size, GFP_KERNEL); - else - of_prop = alloc_bootmem(size); - } - memset(of_prop, 0, sizeof(struct property)); - of_prop->name = "linux,pci-domain"; - of_prop->length = sizeof(int); - of_prop->value = (unsigned char *)&of_prop[1]; - *((int *)of_prop->value) = phb->global_number; - prom_add_property(dev, of_prop); -} - struct pci_controller * pcibios_alloc_controller(struct device_node *dev) { struct pci_controller *phb; @@ -226,22 +198,13 @@ struct pci_controller * pcibios_alloc_controller(struct device_node *dev) pci_setup_pci_controller(phb); phb->arch_data = dev; phb->is_dynamic = mem_init_done; - if (dev) { + if (dev) PHB_SET_NODE(phb, of_node_to_nid(dev)); - add_linux_pci_domain(dev, phb); - } return phb; } void pcibios_free_controller(struct pci_controller *phb) { - if (phb->arch_data) { - struct device_node *np = phb->arch_data; - int *domain = (int *)get_property(np, - "linux,pci-domain", NULL); - if (domain) - *domain = -1; - } if (phb->is_dynamic) kfree(phb); } @@ -283,10 +246,10 @@ static void __init pcibios_claim_of_setup(void) #ifdef CONFIG_PPC_MULTIPLATFORM static u32 get_int_prop(struct device_node *np, const char *name, u32 def) { - u32 *prop; + const u32 *prop; int len; - prop = (u32 *) get_property(np, name, &len); + prop = get_property(np, name, &len); if (prop && len >= 4) return *prop; return def; @@ -315,10 +278,11 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev) u64 base, size; unsigned int flags; struct resource *res; - u32 *addrs, i; + const u32 *addrs; + u32 i; int proplen; - addrs = (u32 *) get_property(node, "assigned-addresses", &proplen); + addrs = get_property(node, "assigned-addresses", &proplen); if (!addrs) return; DBG(" parse addresses (%d bytes) @ %p\n", proplen, addrs); @@ -418,7 +382,7 @@ void __devinit of_scan_bus(struct device_node *node, struct pci_bus *bus) { struct device_node *child = NULL; - u32 *reg; + const u32 *reg; int reglen, devfn; struct pci_dev *dev; @@ -426,7 +390,7 @@ void __devinit of_scan_bus(struct device_node *node, while ((child = of_get_next_child(node, child)) != NULL) { DBG(" * %s\n", child->full_name); - reg = (u32 *) get_property(child, "reg", ®len); + reg = get_property(child, "reg", ®len); if (reg == NULL || reglen < 20) continue; devfn = (reg[0] >> 8) & 0xff; @@ -450,7 +414,7 @@ void __devinit of_scan_pci_bridge(struct device_node *node, struct pci_dev *dev) { struct pci_bus *bus; - u32 *busrange, *ranges; + const u32 *busrange, *ranges; int len, i, mode; struct resource *res; unsigned int flags; @@ -459,13 +423,13 @@ void __devinit of_scan_pci_bridge(struct device_node *node, DBG("of_scan_pci_bridge(%s)\n", node->full_name); /* parse bus-range property */ - busrange = (u32 *) get_property(node, "bus-range", &len); + busrange = get_property(node, "bus-range", &len); if (busrange == NULL || len != 8) { printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n", node->full_name); return; } - ranges = (u32 *) get_property(node, "ranges", &len); + ranges = get_property(node, "ranges", &len); if (ranges == NULL) { printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %s\n", node->full_name); @@ -929,13 +893,13 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node, unsigned int size; }; - struct isa_range *range; + const struct isa_range *range; unsigned long pci_addr; unsigned int isa_addr; unsigned int size; int rlen = 0; - range = (struct isa_range *) get_property(isa_node, "ranges", &rlen); + range = get_property(isa_node, "ranges", &rlen); if (range == NULL || (rlen < sizeof(struct isa_range))) { printk(KERN_ERR "no ISA ranges or unexpected isa range size," "mapping 64k\n"); @@ -976,7 +940,8 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node, void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, struct device_node *dev, int prim) { - unsigned int *ranges, pci_space; + const unsigned int *ranges; + unsigned int pci_space; unsigned long size; int rlen = 0; int memno = 0; @@ -994,7 +959,7 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, * (size depending on dev->n_addr_cells) * cells 4+5 or 5+6: the size of the range */ - ranges = (unsigned int *) get_property(dev, "ranges", &rlen); + ranges = get_property(dev, "ranges", &rlen); if (ranges == NULL) return; hose->io_base_phys = 0; diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c index 1c18953514c..68df018dae0 100644 --- a/arch/powerpc/kernel/pci_dn.c +++ b/arch/powerpc/kernel/pci_dn.c @@ -40,8 +40,8 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data) { struct pci_controller *phb = data; - int *type = (int *)get_property(dn, "ibm,pci-config-space-type", NULL); - u32 *regs; + const int *type = get_property(dn, "ibm,pci-config-space-type", NULL); + const u32 *regs; struct pci_dn *pdn; if (mem_init_done) @@ -54,14 +54,14 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data) dn->data = pdn; pdn->node = dn; pdn->phb = phb; - regs = (u32 *)get_property(dn, "reg", NULL); + regs = get_property(dn, "reg", NULL); if (regs) { /* First register entry is addr (00BBSS00) */ pdn->busno = (regs[0] >> 16) & 0xff; pdn->devfn = (regs[0] >> 8) & 0xff; } if (firmware_has_feature(FW_FEATURE_ISERIES)) { - u32 *busp = (u32 *)get_property(dn, "linux,subbus", NULL); + const u32 *busp = get_property(dn, "linux,subbus", NULL); if (busp) pdn->bussubno = *busp; } @@ -96,10 +96,11 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre, /* We started with a phb, iterate all childs */ for (dn = start->child; dn; dn = nextdn) { - u32 *classp, class; + const u32 *classp; + u32 class; nextdn = NULL; - classp = (u32 *)get_property(dn, "class-code", NULL); + classp = get_property(dn, "class-code", NULL); class = classp ? *classp : 0; if (pre && ((ret = pre(dn, data)) != NULL)) diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 39d3bfcabcd..807193a3c78 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -91,25 +91,10 @@ EXPORT_SYMBOL(__copy_tofrom_user); EXPORT_SYMBOL(__clear_user); EXPORT_SYMBOL(__strncpy_from_user); EXPORT_SYMBOL(__strnlen_user); - -#ifndef __powerpc64__ -EXPORT_SYMBOL(__ide_mm_insl); -EXPORT_SYMBOL(__ide_mm_outsw); -EXPORT_SYMBOL(__ide_mm_insw); -EXPORT_SYMBOL(__ide_mm_outsl); +#ifdef CONFIG_PPC64 +EXPORT_SYMBOL(copy_4K_page); #endif -EXPORT_SYMBOL(_insb); -EXPORT_SYMBOL(_outsb); -EXPORT_SYMBOL(_insw); -EXPORT_SYMBOL(_outsw); -EXPORT_SYMBOL(_insl); -EXPORT_SYMBOL(_outsl); -EXPORT_SYMBOL(_insw_ns); -EXPORT_SYMBOL(_outsw_ns); -EXPORT_SYMBOL(_insl_ns); -EXPORT_SYMBOL(_outsl_ns); - #if defined(CONFIG_PPC32) && (defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)) EXPORT_SYMBOL(ppc_ide_md); #endif diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index a1787ffb631..eb913f80bfb 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -757,24 +757,9 @@ static int __init early_init_dt_scan_root(unsigned long node, static unsigned long __init dt_mem_next_cell(int s, cell_t **cellp) { cell_t *p = *cellp; - unsigned long r; - /* Ignore more than 2 cells */ - while (s > sizeof(unsigned long) / 4) { - p++; - s--; - } - r = *p++; -#ifdef CONFIG_PPC64 - if (s > 1) { - r <<= 32; - r |= *(p++); - s--; - } -#endif - - *cellp = p; - return r; + *cellp = p + s; + return of_read_ulong(p, s); } @@ -942,11 +927,11 @@ void __init early_init_devtree(void *params) int prom_n_addr_cells(struct device_node* np) { - int* ip; + const int *ip; do { if (np->parent) np = np->parent; - ip = (int *) get_property(np, "#address-cells", NULL); + ip = get_property(np, "#address-cells", NULL); if (ip != NULL) return *ip; } while (np->parent); @@ -958,11 +943,11 @@ EXPORT_SYMBOL(prom_n_addr_cells); int prom_n_size_cells(struct device_node* np) { - int* ip; + const int* ip; do { if (np->parent) np = np->parent; - ip = (int *) get_property(np, "#size-cells", NULL); + ip = get_property(np, "#size-cells", NULL); if (ip != NULL) return *ip; } while (np->parent); @@ -1034,7 +1019,7 @@ int device_is_compatible(struct device_node *device, const char *compat) const char* cp; int cplen, l; - cp = (char *) get_property(device, "compatible", &cplen); + cp = get_property(device, "compatible", &cplen); if (cp == NULL) return 0; while (cplen > 0) { @@ -1449,7 +1434,7 @@ static int of_finish_dynamic_node(struct device_node *node) { struct device_node *parent = of_get_parent(node); int err = 0; - phandle *ibm_phandle; + const phandle *ibm_phandle; node->name = get_property(node, "name", NULL); node->type = get_property(node, "device_type", NULL); @@ -1466,8 +1451,7 @@ static int of_finish_dynamic_node(struct device_node *node) return -ENODEV; /* fix up new node's linux_phandle field */ - if ((ibm_phandle = (unsigned int *)get_property(node, - "ibm,phandle", NULL))) + if ((ibm_phandle = get_property(node, "ibm,phandle", NULL))) node->linux_phandle = *ibm_phandle; out: @@ -1528,7 +1512,7 @@ struct property *of_find_property(struct device_node *np, const char *name, * Find a property with a given name for a given node * and return the value. */ -void *get_property(struct device_node *np, const char *name, int *lenp) +const void *get_property(struct device_node *np, const char *name, int *lenp) { struct property *pp = of_find_property(np,name,lenp); return pp ? pp->value : NULL; @@ -1658,16 +1642,16 @@ struct device_node *of_get_cpu_node(int cpu, unsigned int *thread) hardid = get_hard_smp_processor_id(cpu); for_each_node_by_type(np, "cpu") { - u32 *intserv; + const u32 *intserv; unsigned int plen, t; /* Check for ibm,ppc-interrupt-server#s. If it doesn't exist * fallback to "reg" property and assume no threads */ - intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", - &plen); + intserv = get_property(np, "ibm,ppc-interrupt-server#s", + &plen); if (intserv == NULL) { - u32 *reg = (u32 *)get_property(np, "reg", NULL); + const u32 *reg = get_property(np, "reg", NULL); if (reg == NULL) continue; if (*reg == hardid) { diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 4394e545f9f..b91761639d9 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -2033,16 +2033,22 @@ static void __init fixup_device_tree_maple(void) #endif #ifdef CONFIG_PPC_CHRP -/* Pegasos lacks the "ranges" property in the isa node */ +/* Pegasos and BriQ lacks the "ranges" property in the isa node */ static void __init fixup_device_tree_chrp(void) { phandle isa; u32 isa_ranges[6]; + u32 rloc = 0x01006000; /* IO space; PCI device = 12 */ char *name; int rc; name = "/pci@80000000/isa@c"; isa = call_prom("finddevice", 1, 1, ADDR(name)); + if (!PHANDLE_VALID(isa)) { + name = "/pci@ff500000/isa@6"; + isa = call_prom("finddevice", 1, 1, ADDR(name)); + rloc = 0x01003000; /* IO space; PCI device = 6 */ + } if (!PHANDLE_VALID(isa)) return; @@ -2054,7 +2060,7 @@ static void __init fixup_device_tree_chrp(void) isa_ranges[0] = 0x1; isa_ranges[1] = 0x0; - isa_ranges[2] = 0x01006000; + isa_ranges[2] = rloc; isa_ranges[3] = 0x0; isa_ranges[4] = 0x0; isa_ranges[5] = 0x00010000; diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index a10825a5dfe..603dff3ad62 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -27,7 +27,7 @@ /* Debug utility */ #ifdef DEBUG -static void of_dump_addr(const char *s, u32 *addr, int na) +static void of_dump_addr(const char *s, const u32 *addr, int na) { printk("%s", s); while(na--) @@ -35,7 +35,7 @@ static void of_dump_addr(const char *s, u32 *addr, int na) printk("\n"); } #else -static void of_dump_addr(const char *s, u32 *addr, int na) { } +static void of_dump_addr(const char *s, const u32 *addr, int na) { } #endif @@ -46,9 +46,10 @@ struct of_bus { int (*match)(struct device_node *parent); void (*count_cells)(struct device_node *child, int *addrc, int *sizec); - u64 (*map)(u32 *addr, u32 *range, int na, int ns, int pna); + u64 (*map)(u32 *addr, const u32 *range, + int na, int ns, int pna); int (*translate)(u32 *addr, u64 offset, int na); - unsigned int (*get_flags)(u32 *addr); + unsigned int (*get_flags)(const u32 *addr); }; @@ -65,7 +66,8 @@ static void of_bus_default_count_cells(struct device_node *dev, *sizec = prom_n_size_cells(dev); } -static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna) +static u64 of_bus_default_map(u32 *addr, const u32 *range, + int na, int ns, int pna) { u64 cp, s, da; @@ -93,7 +95,7 @@ static int of_bus_default_translate(u32 *addr, u64 offset, int na) return 0; } -static unsigned int of_bus_default_get_flags(u32 *addr) +static unsigned int of_bus_default_get_flags(const u32 *addr) { return IORESOURCE_MEM; } @@ -118,7 +120,7 @@ static void of_bus_pci_count_cells(struct device_node *np, *sizec = 2; } -static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna) +static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna) { u64 cp, s, da; @@ -143,7 +145,7 @@ static int of_bus_pci_translate(u32 *addr, u64 offset, int na) return of_bus_default_translate(addr + 1, offset, na - 1); } -static unsigned int of_bus_pci_get_flags(u32 *addr) +static unsigned int of_bus_pci_get_flags(const u32 *addr) { unsigned int flags = 0; u32 w = addr[0]; @@ -178,7 +180,7 @@ static void of_bus_isa_count_cells(struct device_node *child, *sizec = 1; } -static u64 of_bus_isa_map(u32 *addr, u32 *range, int na, int ns, int pna) +static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna) { u64 cp, s, da; @@ -203,7 +205,7 @@ static int of_bus_isa_translate(u32 *addr, u64 offset, int na) return of_bus_default_translate(addr + 1, offset, na - 1); } -static unsigned int of_bus_isa_get_flags(u32 *addr) +static unsigned int of_bus_isa_get_flags(const u32 *addr) { unsigned int flags = 0; u32 w = addr[0]; @@ -268,7 +270,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus, struct of_bus *pbus, u32 *addr, int na, int ns, int pna) { - u32 *ranges; + const u32 *ranges; unsigned int rlen; int rone; u64 offset = OF_BAD_ADDR; @@ -285,7 +287,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus, * to translate addresses that aren't supposed to be translated in * the first place. --BenH. */ - ranges = (u32 *)get_property(parent, "ranges", &rlen); + ranges = get_property(parent, "ranges", &rlen); if (ranges == NULL || rlen == 0) { offset = of_read_number(addr, na); memset(addr, 0, pna * 4); @@ -328,7 +330,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus, * that can be mapped to a cpu physical address). This is not really specified * that way, but this is traditionally the way IBM at least do things */ -u64 of_translate_address(struct device_node *dev, u32 *in_addr) +u64 of_translate_address(struct device_node *dev, const u32 *in_addr) { struct device_node *parent = NULL; struct of_bus *bus, *pbus; @@ -405,10 +407,10 @@ u64 of_translate_address(struct device_node *dev, u32 *in_addr) } EXPORT_SYMBOL(of_translate_address); -u32 *of_get_address(struct device_node *dev, int index, u64 *size, +const u32 *of_get_address(struct device_node *dev, int index, u64 *size, unsigned int *flags) { - u32 *prop; + const u32 *prop; unsigned int psize; struct device_node *parent; struct of_bus *bus; @@ -425,7 +427,7 @@ u32 *of_get_address(struct device_node *dev, int index, u64 *size, return NULL; /* Get "reg" or "assigned-addresses" property */ - prop = (u32 *)get_property(dev, bus->addresses, &psize); + prop = get_property(dev, bus->addresses, &psize); if (prop == NULL) return NULL; psize /= 4; @@ -443,10 +445,10 @@ u32 *of_get_address(struct device_node *dev, int index, u64 *size, } EXPORT_SYMBOL(of_get_address); -u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, +const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, unsigned int *flags) { - u32 *prop; + const u32 *prop; unsigned int psize; struct device_node *parent; struct of_bus *bus; @@ -467,7 +469,7 @@ u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, return NULL; /* Get "reg" or "assigned-addresses" property */ - prop = (u32 *)get_property(dev, bus->addresses, &psize); + prop = get_property(dev, bus->addresses, &psize); if (prop == NULL) return NULL; psize /= 4; @@ -485,7 +487,7 @@ u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, } EXPORT_SYMBOL(of_get_pci_address); -static int __of_address_to_resource(struct device_node *dev, u32 *addrp, +static int __of_address_to_resource(struct device_node *dev, const u32 *addrp, u64 size, unsigned int flags, struct resource *r) { @@ -516,7 +518,7 @@ static int __of_address_to_resource(struct device_node *dev, u32 *addrp, int of_address_to_resource(struct device_node *dev, int index, struct resource *r) { - u32 *addrp; + const u32 *addrp; u64 size; unsigned int flags; @@ -530,7 +532,7 @@ EXPORT_SYMBOL_GPL(of_address_to_resource); int of_pci_address_to_resource(struct device_node *dev, int bar, struct resource *r) { - u32 *addrp; + const u32 *addrp; u64 size; unsigned int flags; @@ -541,13 +543,14 @@ int of_pci_address_to_resource(struct device_node *dev, int bar, } EXPORT_SYMBOL_GPL(of_pci_address_to_resource); -void of_parse_dma_window(struct device_node *dn, unsigned char *dma_window_prop, +void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, unsigned long *busno, unsigned long *phys, unsigned long *size) { - u32 *dma_window, cells; - unsigned char *prop; + const u32 *dma_window; + u32 cells; + const unsigned char *prop; - dma_window = (u32 *)dma_window_prop; + dma_window = dma_window_prop; /* busno is always one cell */ *busno = *(dma_window++); @@ -576,13 +579,13 @@ static struct device_node *of_irq_dflt_pic; static struct device_node *of_irq_find_parent(struct device_node *child) { struct device_node *p; - phandle *parp; + const phandle *parp; if (!of_node_get(child)) return NULL; do { - parp = (phandle *)get_property(child, "interrupt-parent", NULL); + parp = get_property(child, "interrupt-parent", NULL); if (parp == NULL) p = of_get_parent(child); else { @@ -639,11 +642,11 @@ void of_irq_map_init(unsigned int flags) } -int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 ointsize, - u32 *addr, struct of_irq *out_irq) +int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, + const u32 *addr, struct of_irq *out_irq) { struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL; - u32 *tmp, *imap, *imask; + const u32 *tmp, *imap, *imask; u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0; int imaplen, match, i; @@ -657,7 +660,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 ointsize, * is none, we are nice and just walk up the tree */ do { - tmp = (u32 *)get_property(ipar, "#interrupt-cells", NULL); + tmp = get_property(ipar, "#interrupt-cells", NULL); if (tmp != NULL) { intsize = *tmp; break; @@ -681,7 +684,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 ointsize, */ old = of_node_get(ipar); do { - tmp = (u32 *)get_property(old, "#address-cells", NULL); + tmp = get_property(old, "#address-cells", NULL); tnode = of_get_parent(old); of_node_put(old); old = tnode; @@ -708,7 +711,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 ointsize, } /* Now look for an interrupt-map */ - imap = (u32 *)get_property(ipar, "interrupt-map", &imaplen); + imap = get_property(ipar, "interrupt-map", &imaplen); /* No interrupt map, check for an interrupt parent */ if (imap == NULL) { DBG(" -> no map, getting parent\n"); @@ -718,7 +721,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 ointsize, imaplen /= sizeof(u32); /* Look for a mask */ - imask = (u32 *)get_property(ipar, "interrupt-map-mask", NULL); + imask = get_property(ipar, "interrupt-map-mask", NULL); /* If we were passed no "reg" property and we attempt to parse * an interrupt-map, then #address-cells must be 0. @@ -765,14 +768,14 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 ointsize, /* Get #interrupt-cells and #address-cells of new * parent */ - tmp = (u32 *)get_property(newpar, "#interrupt-cells", + tmp = get_property(newpar, "#interrupt-cells", NULL); if (tmp == NULL) { DBG(" -> parent lacks #interrupt-cells !\n"); goto fail; } newintsize = *tmp; - tmp = (u32 *)get_property(newpar, "#address-cells", + tmp = get_property(newpar, "#address-cells", NULL); newaddrsize = (tmp == NULL) ? 0 : *tmp; @@ -818,14 +821,14 @@ EXPORT_SYMBOL_GPL(of_irq_map_raw); static int of_irq_map_oldworld(struct device_node *device, int index, struct of_irq *out_irq) { - u32 *ints; + const u32 *ints; int intlen; /* * Old machines just have a list of interrupt numbers * and no interrupt-controller nodes. */ - ints = (u32 *) get_property(device, "AAPL,interrupts", &intlen); + ints = get_property(device, "AAPL,interrupts", &intlen); if (ints == NULL) return -EINVAL; intlen /= sizeof(u32); @@ -850,7 +853,8 @@ static int of_irq_map_oldworld(struct device_node *device, int index, int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq) { struct device_node *p; - u32 *intspec, *tmp, intsize, intlen, *addr; + const u32 *intspec, *tmp, *addr; + u32 intsize, intlen; int res; DBG("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index); @@ -860,13 +864,13 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq return of_irq_map_oldworld(device, index, out_irq); /* Get the interrupts property */ - intspec = (u32 *)get_property(device, "interrupts", &intlen); + intspec = get_property(device, "interrupts", &intlen); if (intspec == NULL) return -EINVAL; intlen /= sizeof(u32); /* Get the reg property (if any) */ - addr = (u32 *)get_property(device, "reg", NULL); + addr = get_property(device, "reg", NULL); /* Look for the interrupt parent. */ p = of_irq_find_parent(device); @@ -874,7 +878,7 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq return -EINVAL; /* Get size of interrupt specifier */ - tmp = (u32 *)get_property(p, "#interrupt-cells", NULL); + tmp = get_property(p, "#interrupt-cells", NULL); if (tmp == NULL) { of_node_put(p); return -EINVAL; diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c index 9c9ad1fa9cc..2fe82abf1c5 100644 --- a/arch/powerpc/kernel/rtas-proc.c +++ b/arch/powerpc/kernel/rtas-proc.c @@ -246,12 +246,12 @@ struct file_operations ppc_rtas_rmo_buf_ops = { static int ppc_rtas_find_all_sensors(void); static void ppc_rtas_process_sensor(struct seq_file *m, - struct individual_sensor *s, int state, int error, char *loc); + struct individual_sensor *s, int state, int error, const char *loc); static char *ppc_rtas_process_error(int error); static void get_location_code(struct seq_file *m, - struct individual_sensor *s, char *loc); -static void check_location_string(struct seq_file *m, char *c); -static void check_location(struct seq_file *m, char *c); + struct individual_sensor *s, const char *loc); +static void check_location_string(struct seq_file *m, const char *c); +static void check_location(struct seq_file *m, const char *c); static int __init proc_rtas_init(void) { @@ -446,11 +446,11 @@ static int ppc_rtas_sensors_show(struct seq_file *m, void *v) for (i=0; i<sensors.quant; i++) { struct individual_sensor *p = &sensors.sensor[i]; char rstr[64]; - char *loc; + const char *loc; int llen, offs; sprintf (rstr, SENSOR_PREFIX"%04d", p->token); - loc = (char *) get_property(rtas_node, rstr, &llen); + loc = get_property(rtas_node, rstr, &llen); /* A sensor may have multiple instances */ for (j = 0, offs = 0; j <= p->quant; j++) { @@ -474,10 +474,10 @@ static int ppc_rtas_sensors_show(struct seq_file *m, void *v) static int ppc_rtas_find_all_sensors(void) { - unsigned int *utmp; + const unsigned int *utmp; int len, i; - utmp = (unsigned int *) get_property(rtas_node, "rtas-sensors", &len); + utmp = get_property(rtas_node, "rtas-sensors", &len); if (utmp == NULL) { printk (KERN_ERR "error: could not get rtas-sensors\n"); return 1; @@ -530,7 +530,7 @@ static char *ppc_rtas_process_error(int error) */ static void ppc_rtas_process_sensor(struct seq_file *m, - struct individual_sensor *s, int state, int error, char *loc) + struct individual_sensor *s, int state, int error, const char *loc) { /* Defined return vales */ const char * key_switch[] = { "Off\t", "Normal\t", "Secure\t", @@ -682,7 +682,7 @@ static void ppc_rtas_process_sensor(struct seq_file *m, /* ****************************************************************** */ -static void check_location(struct seq_file *m, char *c) +static void check_location(struct seq_file *m, const char *c) { switch (c[0]) { case LOC_PLANAR: @@ -719,7 +719,7 @@ static void check_location(struct seq_file *m, char *c) * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ] * the '.' may be an abbrevation */ -static void check_location_string(struct seq_file *m, char *c) +static void check_location_string(struct seq_file *m, const char *c) { while (*c) { if (isalpha(*c) || *c == '.') @@ -733,7 +733,8 @@ static void check_location_string(struct seq_file *m, char *c) /* ****************************************************************** */ -static void get_location_code(struct seq_file *m, struct individual_sensor *s, char *loc) +static void get_location_code(struct seq_file *m, struct individual_sensor *s, + const char *loc) { if (!loc || !*loc) { seq_printf(m, "---");/* does not have a location */ diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 77f1e06d208..6ef80d4e38d 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -177,10 +177,12 @@ void __init udbg_init_rtas_console(void) void rtas_progress(char *s, unsigned short hex) { struct device_node *root; - int width, *p; + int width; + const int *p; char *os; static int display_character, set_indicator; - static int display_width, display_lines, *row_width, form_feed; + static int display_width, display_lines, form_feed; + const static int *row_width; static DEFINE_SPINLOCK(progress_lock); static int current_line; static int pending_newline = 0; /* did last write end with unprinted newline? */ @@ -191,16 +193,16 @@ void rtas_progress(char *s, unsigned short hex) if (display_width == 0) { display_width = 0x10; if ((root = find_path_device("/rtas"))) { - if ((p = (unsigned int *)get_property(root, + if ((p = get_property(root, "ibm,display-line-length", NULL))) display_width = *p; - if ((p = (unsigned int *)get_property(root, + if ((p = get_property(root, "ibm,form-feed", NULL))) form_feed = *p; - if ((p = (unsigned int *)get_property(root, + if ((p = get_property(root, "ibm,display-number-of-lines", NULL))) display_lines = *p; - row_width = (unsigned int *)get_property(root, + row_width = get_property(root, "ibm,display-truncation-length", NULL); } display_character = rtas_token("display-character"); @@ -293,10 +295,10 @@ EXPORT_SYMBOL(rtas_progress); /* needed by rtas_flash module */ int rtas_token(const char *service) { - int *tokp; + const int *tokp; if (rtas.dev == NULL) return RTAS_UNKNOWN_SERVICE; - tokp = (int *) get_property(rtas.dev, service, NULL); + tokp = get_property(rtas.dev, service, NULL); return tokp ? *tokp : RTAS_UNKNOWN_SERVICE; } EXPORT_SYMBOL(rtas_token); @@ -626,6 +628,9 @@ void rtas_os_term(char *str) { int status; + if (panic_timeout) + return; + if (RTAS_UNKNOWN_SERVICE == rtas_token("ibm,os-term")) return; @@ -687,15 +692,14 @@ static int rtas_ibm_suspend_me(struct rtas_args *args) int i; long state; long rc; - unsigned long dummy; - + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; struct rtas_suspend_me_data data; /* Make sure the state is valid */ - rc = plpar_hcall(H_VASI_STATE, - ((u64)args->args[0] << 32) | args->args[1], - 0, 0, 0, - &state, &dummy, &dummy); + rc = plpar_hcall(H_VASI_STATE, retbuf, + ((u64)args->args[0] << 32) | args->args[1]); + + state = retbuf[0]; if (rc) { printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned %ld\n",rc); @@ -845,15 +849,15 @@ void __init rtas_initialize(void) */ rtas.dev = of_find_node_by_name(NULL, "rtas"); if (rtas.dev) { - u32 *basep, *entryp; - u32 *sizep; + const u32 *basep, *entryp, *sizep; - basep = (u32 *)get_property(rtas.dev, "linux,rtas-base", NULL); - sizep = (u32 *)get_property(rtas.dev, "rtas-size", NULL); + basep = get_property(rtas.dev, "linux,rtas-base", NULL); + sizep = get_property(rtas.dev, "rtas-size", NULL); if (basep != NULL && sizep != NULL) { rtas.base = *basep; rtas.size = *sizep; - entryp = (u32 *)get_property(rtas.dev, "linux,rtas-entry", NULL); + entryp = get_property(rtas.dev, + "linux,rtas-entry", NULL); if (entryp == NULL) /* Ugh */ rtas.entry = rtas.base; else @@ -909,6 +913,11 @@ int __init early_init_dt_scan_rtas(unsigned long node, basep = of_get_flat_dt_prop(node, "get-term-char", NULL); if (basep) rtas_getchar_token = *basep; + + if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE && + rtas_getchar_token != RTAS_UNKNOWN_SERVICE) + udbg_init_rtas_console(); + #endif /* break now */ diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index cda02265732..b4a0de79c06 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -57,7 +57,7 @@ static inline int config_access_valid(struct pci_dn *dn, int where) static int of_device_available(struct device_node * dn) { - char * status; + const char *status; status = get_property(dn, "status", NULL); @@ -81,8 +81,7 @@ int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val) if (!config_access_valid(pdn, where)) return PCIBIOS_BAD_REGISTER_NUMBER; - addr = ((where & 0xf00) << 20) | (pdn->busno << 16) | - (pdn->devfn << 8) | (where & 0xff); + addr = rtas_config_addr(pdn->busno, pdn->devfn, where); buid = pdn->phb->buid; if (buid) { ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval, @@ -134,8 +133,7 @@ int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val) if (!config_access_valid(pdn, where)) return PCIBIOS_BAD_REGISTER_NUMBER; - addr = ((where & 0xf00) << 20) | (pdn->busno << 16) | - (pdn->devfn << 8) | (where & 0xff); + addr = rtas_config_addr(pdn->busno, pdn->devfn, where); buid = pdn->phb->buid; if (buid) { ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr, @@ -178,7 +176,7 @@ struct pci_ops rtas_pci_ops = { int is_python(struct device_node *dev) { - char *model = (char *)get_property(dev, "model", NULL); + const char *model = get_property(dev, "model", NULL); if (model && strstr(model, "Python")) return 1; @@ -234,7 +232,7 @@ void __init init_pci_config_tokens (void) unsigned long __devinit get_phb_buid (struct device_node *phb) { int addr_cells; - unsigned int *buid_vals; + const unsigned int *buid_vals; unsigned int len; unsigned long buid; @@ -247,7 +245,7 @@ unsigned long __devinit get_phb_buid (struct device_node *phb) if (phb->parent->parent) return 0; - buid_vals = (unsigned int *) get_property(phb, "reg", &len); + buid_vals = get_property(phb, "reg", &len); if (buid_vals == NULL) return 0; @@ -264,10 +262,10 @@ unsigned long __devinit get_phb_buid (struct device_node *phb) static int phb_set_bus_ranges(struct device_node *dev, struct pci_controller *phb) { - int *bus_range; + const int *bus_range; unsigned int len; - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { return 1; } @@ -325,15 +323,15 @@ unsigned long __init find_and_init_phbs(void) * in chosen. */ if (of_chosen) { - int *prop; + const int *prop; - prop = (int *)get_property(of_chosen, "linux,pci-probe-only", - NULL); + prop = get_property(of_chosen, + "linux,pci-probe-only", NULL); if (prop) pci_probe_only = *prop; - prop = (int *)get_property(of_chosen, - "linux,pci-assign-all-buses", NULL); + prop = get_property(of_chosen, + "linux,pci-assign-all-buses", NULL); if (prop) pci_assign_all_buses = *prop; } diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 499c3861074..0af3fc1bdcc 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -304,19 +304,21 @@ struct seq_operations cpuinfo_op = { void __init check_for_initrd(void) { #ifdef CONFIG_BLK_DEV_INITRD - unsigned long *prop; + const unsigned int *prop; + int len; DBG(" -> check_for_initrd()\n"); if (of_chosen) { - prop = (unsigned long *)get_property(of_chosen, - "linux,initrd-start", NULL); + prop = get_property(of_chosen, "linux,initrd-start", &len); if (prop != NULL) { - initrd_start = (unsigned long)__va(*prop); - prop = (unsigned long *)get_property(of_chosen, - "linux,initrd-end", NULL); + initrd_start = (unsigned long) + __va(of_read_ulong(prop, len / 4)); + prop = get_property(of_chosen, + "linux,initrd-end", &len); if (prop != NULL) { - initrd_end = (unsigned long)__va(*prop); + initrd_end = (unsigned long) + __va(of_read_ulong(prop, len / 4)); initrd_below_start_ok = 1; } else initrd_start = 0; @@ -366,15 +368,14 @@ void __init smp_setup_cpu_maps(void) int cpu = 0; while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < NR_CPUS) { - int *intserv; + const int *intserv; int j, len = sizeof(u32), nthreads = 1; - intserv = (int *)get_property(dn, "ibm,ppc-interrupt-server#s", - &len); + intserv = get_property(dn, "ibm,ppc-interrupt-server#s", &len); if (intserv) nthreads = len / sizeof(int); else { - intserv = (int *) get_property(dn, "reg", NULL); + intserv = get_property(dn, "reg", NULL); if (!intserv) intserv = &cpu; /* assume logical == phys */ } @@ -395,13 +396,12 @@ void __init smp_setup_cpu_maps(void) if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) && (dn = of_find_node_by_path("/rtas"))) { int num_addr_cell, num_size_cell, maxcpus; - unsigned int *ireg; + const unsigned int *ireg; num_addr_cell = prom_n_addr_cells(dn); num_size_cell = prom_n_size_cells(dn); - ireg = (unsigned int *) - get_property(dn, "ibm,lrdr-capacity", NULL); + ireg = get_property(dn, "ibm,lrdr-capacity", NULL); if (!ireg) goto out; @@ -444,6 +444,8 @@ void __init smp_setup_cpu_maps(void) int __initdata do_early_xmon; #ifdef CONFIG_XMON +extern int xmon_no_auto_backtrace; + static int __init early_xmon(char *p) { /* ensure xmon is enabled */ @@ -452,6 +454,8 @@ static int __init early_xmon(char *p) xmon_init(1); if (strncmp(p, "off", 3) == 0) xmon_init(0); + if (strncmp(p, "nobt", 4) == 0) + xmon_no_auto_backtrace = 1; if (strncmp(p, "early", 5) != 0) return 0; } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index fd1785e4c9b..00d6b8addd7 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -56,7 +56,6 @@ #include <asm/page.h> #include <asm/mmu.h> #include <asm/lmb.h> -#include <asm/iseries/it_lp_naca.h> #include <asm/firmware.h> #include <asm/xmon.h> #include <asm/udbg.h> @@ -79,10 +78,10 @@ u64 ppc64_pft_size; * before we've read this from the device tree. */ struct ppc64_caches ppc64_caches = { - .dline_size = 0x80, - .log_dline_size = 7, - .iline_size = 0x80, - .log_iline_size = 7 + .dline_size = 0x40, + .log_dline_size = 6, + .iline_size = 0x40, + .log_iline_size = 6 }; EXPORT_SYMBOL_GPL(ppc64_caches); @@ -107,7 +106,7 @@ static int smt_enabled_cmdline; static void check_smt_enabled(void) { struct device_node *dn; - char *smt_option; + const char *smt_option; /* Allow the command line to overrule the OF option */ if (smt_enabled_cmdline) @@ -116,7 +115,7 @@ static void check_smt_enabled(void) dn = of_find_node_by_path("/options"); if (dn) { - smt_option = (char *)get_property(dn, "ibm,smt-enabled", NULL); + smt_option = get_property(dn, "ibm,smt-enabled", NULL); if (smt_option) { if (!strcmp(smt_option, "on")) @@ -293,7 +292,7 @@ static void __init initialize_cache_info(void) */ if ( num_cpus == 1 ) { - u32 *sizep, *lsizep; + const u32 *sizep, *lsizep; u32 size, lsize; const char *dc, *ic; @@ -308,10 +307,10 @@ static void __init initialize_cache_info(void) size = 0; lsize = cur_cpu_spec->dcache_bsize; - sizep = (u32 *)get_property(np, "d-cache-size", NULL); + sizep = get_property(np, "d-cache-size", NULL); if (sizep != NULL) size = *sizep; - lsizep = (u32 *) get_property(np, dc, NULL); + lsizep = get_property(np, dc, NULL); if (lsizep != NULL) lsize = *lsizep; if (sizep == 0 || lsizep == 0) @@ -325,10 +324,10 @@ static void __init initialize_cache_info(void) size = 0; lsize = cur_cpu_spec->icache_bsize; - sizep = (u32 *)get_property(np, "i-cache-size", NULL); + sizep = get_property(np, "i-cache-size", NULL); if (sizep != NULL) size = *sizep; - lsizep = (u32 *)get_property(np, ic, NULL); + lsizep = get_property(np, ic, NULL); if (lsizep != NULL) lsize = *lsizep; if (sizep == 0 || lsizep == 0) diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index fec228cd016..406f308ddea 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -60,7 +60,7 @@ static int smt_snooze_cmdline; static int __init smt_setup(void) { struct device_node *options; - unsigned int *val; + const unsigned int *val; unsigned int cpu; if (!cpu_has_feature(CPU_FTR_SMT)) @@ -70,8 +70,7 @@ static int __init smt_setup(void) if (!options) return -ENODEV; - val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay", - NULL); + val = get_property(options, "ibm,smt-snooze-delay", NULL); if (!smt_snooze_cmdline && val) { for_each_possible_cpu(cpu) per_cpu(smt_snooze_delay, cpu) = *val; @@ -231,7 +230,7 @@ static void register_cpu_online(unsigned int cpu) if (cur_cpu_spec->num_pmcs >= 8) sysdev_create_file(s, &attr_pmc8); - if (cpu_has_feature(CPU_FTR_SMT)) + if (cpu_has_feature(CPU_FTR_PURR)) sysdev_create_file(s, &attr_purr); } @@ -273,7 +272,7 @@ static void unregister_cpu_online(unsigned int cpu) if (cur_cpu_spec->num_pmcs >= 8) sysdev_remove_file(s, &attr_pmc8); - if (cpu_has_feature(CPU_FTR_SMT)) + if (cpu_has_feature(CPU_FTR_PURR)) sysdev_remove_file(s, &attr_purr); } #endif /* CONFIG_HOTPLUG_CPU */ diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index a124499e65d..7a3c3f791ad 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -860,19 +860,17 @@ EXPORT_SYMBOL(do_settimeofday); static int __init get_freq(char *name, int cells, unsigned long *val) { struct device_node *cpu; - unsigned int *fp; + const unsigned int *fp; int found = 0; /* The cpu node should have timebase and clock frequency properties */ cpu = of_find_node_by_type(NULL, "cpu"); if (cpu) { - fp = (unsigned int *)get_property(cpu, name, NULL); + fp = get_property(cpu, name, NULL); if (fp) { found = 1; - *val = 0; - while (cells--) - *val = (*val << 32) | *fp++; + *val = of_read_ulong(fp, cells); } of_node_put(cpu); diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 9b352bd0a46..d9f10f2fc37 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -598,6 +598,9 @@ static void parse_fpe(struct pt_regs *regs) #define INST_STSWI 0x7c0005aa #define INST_STSWX 0x7c00052a +#define INST_POPCNTB 0x7c0000f4 +#define INST_POPCNTB_MASK 0xfc0007fe + static int emulate_string_inst(struct pt_regs *regs, u32 instword) { u8 rT = (instword >> 21) & 0x1f; @@ -666,6 +669,23 @@ static int emulate_string_inst(struct pt_regs *regs, u32 instword) return 0; } +static int emulate_popcntb_inst(struct pt_regs *regs, u32 instword) +{ + u32 ra,rs; + unsigned long tmp; + + ra = (instword >> 16) & 0x1f; + rs = (instword >> 21) & 0x1f; + + tmp = regs->gpr[rs]; + tmp = tmp - ((tmp >> 1) & 0x5555555555555555ULL); + tmp = (tmp & 0x3333333333333333ULL) + ((tmp >> 2) & 0x3333333333333333ULL); + tmp = (tmp + (tmp >> 4)) & 0x0f0f0f0f0f0f0f0fULL; + regs->gpr[ra] = tmp; + + return 0; +} + static int emulate_instruction(struct pt_regs *regs) { u32 instword; @@ -703,6 +723,11 @@ static int emulate_instruction(struct pt_regs *regs) if ((instword & INST_STRING_GEN_MASK) == INST_STRING) return emulate_string_inst(regs, instword); + /* Emulate the popcntb (Population Count Bytes) instruction. */ + if ((instword & INST_POPCNTB_MASK) == INST_POPCNTB) { + return emulate_popcntb_inst(regs, instword); + } + return -EINVAL; } diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index fad8580f908..cb87e71eec6 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -77,7 +77,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev) } else #endif { - unsigned char *dma_window; + const unsigned char *dma_window; struct iommu_table *tbl; unsigned long offset, size; @@ -217,7 +217,7 @@ static void __devinit vio_dev_release(struct device *dev) struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) { struct vio_dev *viodev; - unsigned int *unit_address; + const unsigned int *unit_address; /* we need the 'device_type' property, in order to match with drivers */ if (of_node->type == NULL) { @@ -227,7 +227,7 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) return NULL; } - unit_address = (unsigned int *)get_property(of_node, "reg", NULL); + unit_address = get_property(of_node, "reg", NULL); if (unit_address == NULL) { printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__, @@ -249,7 +249,7 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) viodev->type = of_node->type; viodev->unit_address = *unit_address; if (firmware_has_feature(FW_FEATURE_ISERIES)) { - unit_address = (unsigned int *)get_property(of_node, + unit_address = get_property(of_node, "linux,unit_address", NULL); if (unit_address != NULL) viodev->unit_address = *unit_address; @@ -423,7 +423,7 @@ static int vio_hotplug(struct device *dev, char **envp, int num_envp, { const struct vio_dev *vio_dev = to_vio_dev(dev); struct device_node *dn = dev->platform_data; - char *cp; + const char *cp; int length; if (!num_envp) @@ -431,7 +431,7 @@ static int vio_hotplug(struct device *dev, char **envp, int num_envp, if (!dn) return -ENODEV; - cp = (char *)get_property(dn, "compatible", &length); + cp = get_property(dn, "compatible", &length); if (!cp) return -ENODEV; @@ -493,11 +493,11 @@ static struct vio_dev *vio_find_name(const char *kobj_name) */ struct vio_dev *vio_find_node(struct device_node *vnode) { - uint32_t *unit_address; + const uint32_t *unit_address; char kobj_name[BUS_ID_SIZE]; /* construct the kobject name from the device node */ - unit_address = (uint32_t *)get_property(vnode, "reg", NULL); + unit_address = get_property(vnode, "reg", NULL); if (!unit_address) return NULL; snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address); diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index ff709645824..336dd191f76 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -14,7 +14,6 @@ endif obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \ memcpy_64.o usercopy_64.o mem_64.o string.o \ strcase.o -obj-$(CONFIG_PPC_ISERIES) += e2a.o obj-$(CONFIG_XMON) += sstep.o ifeq ($(CONFIG_PPC64),y) diff --git a/arch/powerpc/lib/e2a.c b/arch/powerpc/lib/e2a.c deleted file mode 100644 index 4b72ed8fd50..00000000000 --- a/arch/powerpc/lib/e2a.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * EBCDIC to ASCII conversion - * - * This function moved here from arch/powerpc/platforms/iseries/viopath.c - * - * (C) Copyright 2000-2004 IBM Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) anyu later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <linux/module.h> - -unsigned char e2a(unsigned char x) -{ - switch (x) { - case 0xF0: - return '0'; - case 0xF1: - return '1'; - case 0xF2: - return '2'; - case 0xF3: - return '3'; - case 0xF4: - return '4'; - case 0xF5: - return '5'; - case 0xF6: - return '6'; - case 0xF7: - return '7'; - case 0xF8: - return '8'; - case 0xF9: - return '9'; - case 0xC1: - return 'A'; - case 0xC2: - return 'B'; - case 0xC3: - return 'C'; - case 0xC4: - return 'D'; - case 0xC5: - return 'E'; - case 0xC6: - return 'F'; - case 0xC7: - return 'G'; - case 0xC8: - return 'H'; - case 0xC9: - return 'I'; - case 0xD1: - return 'J'; - case 0xD2: - return 'K'; - case 0xD3: - return 'L'; - case 0xD4: - return 'M'; - case 0xD5: - return 'N'; - case 0xD6: - return 'O'; - case 0xD7: - return 'P'; - case 0xD8: - return 'Q'; - case 0xD9: - return 'R'; - case 0xE2: - return 'S'; - case 0xE3: - return 'T'; - case 0xE4: - return 'U'; - case 0xE5: - return 'V'; - case 0xE6: - return 'W'; - case 0xE7: - return 'X'; - case 0xE8: - return 'Y'; - case 0xE9: - return 'Z'; - } - return ' '; -} -EXPORT_SYMBOL(e2a); - -unsigned char* strne2a(unsigned char *dest, const unsigned char *src, size_t n) -{ - int i; - - n = strnlen(src, n); - - for (i = 0; i < n; i++) - dest[i] = e2a(src[i]); - - return dest; -} diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c index 077bed7dc52..80b482ca30d 100644 --- a/arch/powerpc/lib/locks.c +++ b/arch/powerpc/lib/locks.c @@ -23,6 +23,7 @@ #include <asm/hvcall.h> #include <asm/iseries/hv_call.h> #include <asm/smp.h> +#include <asm/firmware.h> void __spin_yield(raw_spinlock_t *lock) { @@ -39,13 +40,12 @@ void __spin_yield(raw_spinlock_t *lock) rmb(); if (lock->slock != lock_value) return; /* something has changed */ -#ifdef CONFIG_PPC_ISERIES - HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc, - ((u64)holder_cpu << 32) | yield_count); -#else - plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu), - yield_count); -#endif + if (firmware_has_feature(FW_FEATURE_ISERIES)) + HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc, + ((u64)holder_cpu << 32) | yield_count); + else + plpar_hcall_norets(H_CONFER, + get_hard_smp_processor_id(holder_cpu), yield_count); } /* @@ -69,13 +69,12 @@ void __rw_yield(raw_rwlock_t *rw) rmb(); if (rw->lock != lock_value) return; /* something has changed */ -#ifdef CONFIG_PPC_ISERIES - HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc, - ((u64)holder_cpu << 32) | yield_count); -#else - plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu), - yield_count); -#endif + if (firmware_has_feature(FW_FEATURE_ISERIES)) + HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc, + ((u64)holder_cpu << 32) | yield_count); + else + plpar_hcall_norets(H_CONFER, + get_hard_smp_processor_id(holder_cpu), yield_count); } #endif diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index fbe23933f73..6c0f1c7d83e 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -159,12 +159,12 @@ static struct device_node * __cpuinit find_cpu_node(unsigned int cpu) { unsigned int hw_cpuid = get_hard_smp_processor_id(cpu); struct device_node *cpu_node = NULL; - unsigned int *interrupt_server, *reg; + const unsigned int *interrupt_server, *reg; int len; while ((cpu_node = of_find_node_by_type(cpu_node, "cpu")) != NULL) { /* Try interrupt server first */ - interrupt_server = (unsigned int *)get_property(cpu_node, + interrupt_server = get_property(cpu_node, "ibm,ppc-interrupt-server#s", &len); len = len / sizeof(u32); @@ -175,8 +175,7 @@ static struct device_node * __cpuinit find_cpu_node(unsigned int cpu) return cpu_node; } } else { - reg = (unsigned int *)get_property(cpu_node, - "reg", &len); + reg = get_property(cpu_node, "reg", &len); if (reg && (len > 0) && (reg[0] == hw_cpuid)) return cpu_node; } @@ -186,9 +185,9 @@ static struct device_node * __cpuinit find_cpu_node(unsigned int cpu) } /* must hold reference to node during call */ -static int *of_get_associativity(struct device_node *dev) +static const int *of_get_associativity(struct device_node *dev) { - return (unsigned int *)get_property(dev, "ibm,associativity", NULL); + return get_property(dev, "ibm,associativity", NULL); } /* Returns nid in the range [0..MAX_NUMNODES-1], or -1 if no useful numa @@ -197,7 +196,7 @@ static int *of_get_associativity(struct device_node *dev) static int of_node_to_nid_single(struct device_node *device) { int nid = -1; - unsigned int *tmp; + const unsigned int *tmp; if (min_common_depth == -1) goto out; @@ -255,7 +254,7 @@ EXPORT_SYMBOL_GPL(of_node_to_nid); static int __init find_min_common_depth(void) { int depth; - unsigned int *ref_points; + const unsigned int *ref_points; struct device_node *rtas_root; unsigned int len; @@ -270,7 +269,7 @@ static int __init find_min_common_depth(void) * configuration (should be all 0's) and the second is for a normal * NUMA configuration. */ - ref_points = (unsigned int *)get_property(rtas_root, + ref_points = get_property(rtas_root, "ibm,associativity-reference-points", &len); if ((len >= 1) && ref_points) { @@ -297,7 +296,7 @@ static void __init get_n_mem_cells(int *n_addr_cells, int *n_size_cells) of_node_put(memory); } -static unsigned long __devinit read_n_cells(int n, unsigned int **buf) +static unsigned long __devinit read_n_cells(int n, const unsigned int **buf) { unsigned long result = 0; @@ -435,15 +434,13 @@ static int __init parse_numa_properties(void) unsigned long size; int nid; int ranges; - unsigned int *memcell_buf; + const unsigned int *memcell_buf; unsigned int len; - memcell_buf = (unsigned int *)get_property(memory, + memcell_buf = get_property(memory, "linux,usable-memory", &len); if (!memcell_buf || len <= 0) - memcell_buf = - (unsigned int *)get_property(memory, "reg", - &len); + memcell_buf = get_property(memory, "reg", &len); if (!memcell_buf || len <= 0) continue; @@ -787,10 +784,10 @@ int hot_add_scn_to_nid(unsigned long scn_addr) while ((memory = of_find_node_by_type(memory, "memory")) != NULL) { unsigned long start, size; int ranges; - unsigned int *memcell_buf; + const unsigned int *memcell_buf; unsigned int len; - memcell_buf = (unsigned int *)get_property(memory, "reg", &len); + memcell_buf = get_property(memory, "reg", &len); if (!memcell_buf || len <= 0) continue; diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index de0c8842415..d3733912adb 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -22,6 +22,8 @@ #include <asm/paca.h> #include <asm/cputable.h> #include <asm/cacheflush.h> +#include <asm/smp.h> +#include <linux/compiler.h> #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) @@ -50,9 +52,32 @@ static inline unsigned long mk_vsid_data(unsigned long ea, unsigned long flags) return (get_kernel_vsid(ea) << SLB_VSID_SHIFT) | flags; } -static inline void create_slbe(unsigned long ea, unsigned long flags, - unsigned long entry) +static inline void slb_shadow_update(unsigned long esid, unsigned long vsid, + unsigned long entry) { + /* + * Clear the ESID first so the entry is not valid while we are + * updating it. + */ + get_slb_shadow()->save_area[entry].esid = 0; + barrier(); + get_slb_shadow()->save_area[entry].vsid = vsid; + barrier(); + get_slb_shadow()->save_area[entry].esid = esid; + +} + +static inline void create_shadowed_slbe(unsigned long ea, unsigned long flags, + unsigned long entry) +{ + /* + * Updating the shadow buffer before writing the SLB ensures + * we don't get a stale entry here if we get preempted by PHYP + * between these two statements. + */ + slb_shadow_update(mk_esid_data(ea, entry), mk_vsid_data(ea, flags), + entry); + asm volatile("slbmte %0,%1" : : "r" (mk_vsid_data(ea, flags)), "r" (mk_esid_data(ea, entry)) @@ -77,6 +102,10 @@ void slb_flush_and_rebolt(void) if ((ksp_esid_data & ESID_MASK) == PAGE_OFFSET) ksp_esid_data &= ~SLB_ESID_V; + /* Only third entry (stack) may change here so only resave that */ + slb_shadow_update(ksp_esid_data, + mk_vsid_data(ksp_esid_data, lflags), 2); + /* We need to do this all in asm, so we're sure we don't touch * the stack between the slbia and rebolting it. */ asm volatile("isync\n" @@ -209,9 +238,9 @@ void slb_initialize(void) asm volatile("isync":::"memory"); asm volatile("slbmte %0,%0"::"r" (0) : "memory"); asm volatile("isync; slbia; isync":::"memory"); - create_slbe(PAGE_OFFSET, lflags, 0); + create_shadowed_slbe(PAGE_OFFSET, lflags, 0); - create_slbe(VMALLOC_START, vflags, 1); + create_shadowed_slbe(VMALLOC_START, vflags, 1); /* We don't bolt the stack for the time being - we're in boot, * so the stack is in the bolted segment. By the time it goes diff --git a/arch/powerpc/mm/tlb_64.c b/arch/powerpc/mm/tlb_64.c index f6eef78efd2..b58baa65c4a 100644 --- a/arch/powerpc/mm/tlb_64.c +++ b/arch/powerpc/mm/tlb_64.c @@ -146,6 +146,7 @@ void hpte_update(struct mm_struct *mm, unsigned long addr, psize = mmu_huge_psize; #else BUG(); + psize = pte_pagesize_index(pte); /* shutup gcc */ #endif } else psize = pte_pagesize_index(pte); diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c index cf3967a66fb..969fbb6d8c4 100644 --- a/arch/powerpc/platforms/83xx/mpc834x_itx.c +++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c @@ -60,8 +60,8 @@ static void __init mpc834x_itx_setup_arch(void) np = of_find_node_by_type(NULL, "cpu"); if (np != 0) { - unsigned int *fp = - (int *)get_property(np, "clock-frequency", NULL); + const unsigned int *fp = + get_property(np, "clock-frequency", NULL); if (fp != 0) loops_per_jiffy = *fp / HZ; else diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.c b/arch/powerpc/platforms/83xx/mpc834x_sys.c index 32df239d1c4..677196187a4 100644 --- a/arch/powerpc/platforms/83xx/mpc834x_sys.c +++ b/arch/powerpc/platforms/83xx/mpc834x_sys.c @@ -57,8 +57,8 @@ static void __init mpc834x_sys_setup_arch(void) np = of_find_node_by_type(NULL, "cpu"); if (np != 0) { - unsigned int *fp = - (int *)get_property(np, "clock-frequency", NULL); + const unsigned int *fp = + get_property(np, "clock-frequency", NULL); if (fp != 0) loops_per_jiffy = *fp / HZ; else diff --git a/arch/powerpc/platforms/83xx/pci.c b/arch/powerpc/platforms/83xx/pci.c index 5d84a9ccd10..4557ac5255c 100644 --- a/arch/powerpc/platforms/83xx/pci.c +++ b/arch/powerpc/platforms/83xx/pci.c @@ -59,7 +59,7 @@ int __init add_bridge(struct device_node *dev) int len; struct pci_controller *hose; struct resource rsrc; - int *bus_range; + const int *bus_range; int primary = 1, has_address = 0; phys_addr_t immr = get_immrbase(); @@ -69,7 +69,7 @@ int __init add_bridge(struct device_node *dev) has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); /* Get bus range if any */ - bus_range = (int *)get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, assume" " bus 0\n", dev->full_name); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index 9d2acfbbecc..cae6b73357d 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -121,9 +121,9 @@ static void __init mpc85xx_ads_setup_arch(void) cpu = of_find_node_by_type(NULL, "cpu"); if (cpu != 0) { - unsigned int *fp; + const unsigned int *fp; - fp = (int *)get_property(cpu, "clock-frequency", NULL); + fp = get_property(cpu, "clock-frequency", NULL); if (fp != 0) loops_per_jiffy = *fp / HZ; else diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c index 1d357d32a29..4c1fede6470 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -241,9 +241,9 @@ mpc85xx_cds_setup_arch(void) cpu = of_find_node_by_type(NULL, "cpu"); if (cpu != 0) { - unsigned int *fp; + const unsigned int *fp; - fp = (int *)get_property(cpu, "clock-frequency", NULL); + fp = get_property(cpu, "clock-frequency", NULL); if (fp != 0) loops_per_jiffy = *fp / HZ; else diff --git a/arch/powerpc/platforms/85xx/pci.c b/arch/powerpc/platforms/85xx/pci.c index 1d51f3242ab..05930eeb6e7 100644 --- a/arch/powerpc/platforms/85xx/pci.c +++ b/arch/powerpc/platforms/85xx/pci.c @@ -41,7 +41,7 @@ int __init add_bridge(struct device_node *dev) int len; struct pci_controller *hose; struct resource rsrc; - int *bus_range; + const int *bus_range; int primary = 1, has_address = 0; phys_addr_t immr = get_immrbase(); @@ -51,7 +51,7 @@ int __init add_bridge(struct device_node *dev) has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); /* Get bus range if any */ - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, assume" " bus 0\n", dev->full_name); diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index 5e583cf3878..b637e8157f7 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -347,9 +347,9 @@ mpc86xx_hpcn_setup_arch(void) np = of_find_node_by_type(NULL, "cpu"); if (np != 0) { - unsigned int *fp; + const unsigned int *fp; - fp = (int *)get_property(np, "clock-frequency", NULL); + fp = get_property(np, "clock-frequency", NULL); if (fp != 0) loops_per_jiffy = *fp / HZ; else diff --git a/arch/powerpc/platforms/86xx/pci.c b/arch/powerpc/platforms/86xx/pci.c index a8c8f0a4405..481e18ed5be 100644 --- a/arch/powerpc/platforms/86xx/pci.c +++ b/arch/powerpc/platforms/86xx/pci.c @@ -153,7 +153,7 @@ int __init add_bridge(struct device_node *dev) int len; struct pci_controller *hose; struct resource rsrc; - int *bus_range; + const int *bus_range; int has_address = 0; int primary = 0; @@ -163,7 +163,7 @@ int __init add_bridge(struct device_node *dev) has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); /* Get bus range if any */ - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) printk(KERN_WARNING "Can't get bus-range for %s, assume" " bus 0\n", dev->full_name); diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile index 5cf46dc5789..e58fa953a50 100644 --- a/arch/powerpc/platforms/Makefile +++ b/arch/powerpc/platforms/Makefile @@ -13,5 +13,6 @@ obj-$(CONFIG_PPC_86xx) += 86xx/ obj-$(CONFIG_PPC_PSERIES) += pseries/ obj-$(CONFIG_PPC_ISERIES) += iseries/ obj-$(CONFIG_PPC_MAPLE) += maple/ +obj-$(CONFIG_PPC_PASEMI) += pasemi/ obj-$(CONFIG_PPC_CELL) += cell/ obj-$(CONFIG_EMBEDDED6xx) += embedded6xx/ diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c index ce696c1cca7..3f3859d12e0 100644 --- a/arch/powerpc/platforms/cell/cbe_regs.c +++ b/arch/powerpc/platforms/cell/cbe_regs.c @@ -97,7 +97,7 @@ void __init cbe_regs_init(void) struct cbe_regs_map *map = &cbe_regs_maps[cbe_regs_map_count++]; /* That hack must die die die ! */ - struct address_prop { + const struct address_prop { unsigned long address; unsigned int len; } __attribute__((packed)) *prop; @@ -114,13 +114,11 @@ void __init cbe_regs_init(void) if (cbe_thread_map[i].cpu_node == cpu) cbe_thread_map[i].regs = map; - prop = (struct address_prop *)get_property(cpu, "pervasive", - NULL); + prop = get_property(cpu, "pervasive", NULL); if (prop != NULL) map->pmd_regs = ioremap(prop->address, prop->len); - prop = (struct address_prop *)get_property(cpu, "iic", - NULL); + prop = get_property(cpu, "iic", NULL); if (prop != NULL) map->iic_regs = ioremap(prop->address, prop->len); } diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index d7bbb61109f..6b57a47c5d3 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -89,17 +89,17 @@ static struct irq_chip iic_chip = { /* Get an IRQ number from the pending state register of the IIC */ static unsigned int iic_get_irq(struct pt_regs *regs) { - struct cbe_iic_pending_bits pending; - struct iic *iic; - - iic = &__get_cpu_var(iic); - *(unsigned long *) &pending = - in_be64((unsigned long __iomem *) &iic->regs->pending_destr); - iic->eoi_stack[++iic->eoi_ptr] = pending.prio; - BUG_ON(iic->eoi_ptr > 15); + struct cbe_iic_pending_bits pending; + struct iic *iic; + + iic = &__get_cpu_var(iic); + *(unsigned long *) &pending = + in_be64((unsigned long __iomem *) &iic->regs->pending_destr); + iic->eoi_stack[++iic->eoi_ptr] = pending.prio; + BUG_ON(iic->eoi_ptr > 15); if (pending.flags & CBE_IIC_IRQ_VALID) return irq_linear_revmap(iic->host, - iic_pending_to_hwnum(pending)); + iic_pending_to_hwnum(pending)); return NO_IRQ; } @@ -250,16 +250,15 @@ static int __init setup_iic(void) struct resource r0, r1; struct irq_host *host; int found = 0; - u32 *np; + const u32 *np; for (dn = NULL; (dn = of_find_node_by_name(dn,"interrupt-controller")) != NULL;) { if (!device_is_compatible(dn, "IBM,CBEA-Internal-Interrupt-Controller")) continue; - np = (u32 *)get_property(dn, "ibm,interrupt-server-ranges", - NULL); - if (np == NULL) { + np = get_property(dn, "ibm,interrupt-server-ranges", NULL); + if (np == NULL) { printk(KERN_WARNING "IIC: CPU association not found\n"); of_node_put(dn); return -ENODEV; diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index a35004e14c6..d2b20eba5b8 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -308,15 +308,16 @@ static void cell_do_map_iommu(struct cell_iommu *iommu, static void iommu_devnode_setup(struct device_node *d) { - unsigned int *ioid; - unsigned long *dma_window, map_start, map_size, token; + const unsigned int *ioid; + unsigned long map_start, map_size, token; + const unsigned long *dma_window; struct cell_iommu *iommu; - ioid = (unsigned int *)get_property(d, "ioid", NULL); + ioid = get_property(d, "ioid", NULL); if (!ioid) pr_debug("No ioid entry found !\n"); - dma_window = (unsigned long *)get_property(d, "ibm,dma-window", NULL); + dma_window = get_property(d, "ibm,dma-window", NULL); if (!dma_window) pr_debug("No ibm,dma-window entry found !\n"); @@ -371,8 +372,9 @@ static int cell_map_iommu_hardcoded(int num_nodes) static int cell_map_iommu(void) { - unsigned int num_nodes = 0, *node_id; - unsigned long *base, *mmio_base; + unsigned int num_nodes = 0; + const unsigned int *node_id; + const unsigned long *base, *mmio_base; struct device_node *dn; struct cell_iommu *iommu = NULL; @@ -381,7 +383,7 @@ static int cell_map_iommu(void) for(dn = of_find_node_by_type(NULL, "cpu"); dn; dn = of_find_node_by_type(dn, "cpu")) { - node_id = (unsigned int *)get_property(dn, "node-id", NULL); + node_id = get_property(dn, "node-id", NULL); if (num_nodes < *node_id) num_nodes = *node_id; @@ -396,9 +398,9 @@ static int cell_map_iommu(void) dn; dn = of_find_node_by_type(dn, "cpu")) { - node_id = (unsigned int *)get_property(dn, "node-id", NULL); - base = (unsigned long *)get_property(dn, "ioc-cache", NULL); - mmio_base = (unsigned long *)get_property(dn, "ioc-translation", NULL); + node_id = get_property(dn, "node-id", NULL); + base = get_property(dn, "ioc-cache", NULL); + mmio_base = get_property(dn, "ioc-translation", NULL); if (!base || !mmio_base || !node_id) return cell_map_iommu_hardcoded(num_nodes); diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index 282987d6d4a..22c228a49c3 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -150,10 +150,6 @@ static int __init cell_probe(void) !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) return 0; -#ifdef CONFIG_UDBG_RTAS_CONSOLE - udbg_init_rtas_console(); -#endif - hpte_init_native(); return 1; diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c index 46aef064074..1c0acbad742 100644 --- a/arch/powerpc/platforms/cell/smp.c +++ b/arch/powerpc/platforms/cell/smp.c @@ -57,7 +57,7 @@ */ static cpumask_t of_spin_map; -extern void pSeries_secondary_smp_init(unsigned long); +extern void generic_secondary_smp_init(unsigned long); /** * smp_startup_cpu() - start the given cpu @@ -74,7 +74,7 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu) { int status; unsigned long start_here = __pa((u32)*((unsigned long *) - pSeries_secondary_smp_init)); + generic_secondary_smp_init)); unsigned int pcpu; int start_cpu; diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c index 15217bb0402..742a03282b4 100644 --- a/arch/powerpc/platforms/cell/spider-pic.c +++ b/arch/powerpc/platforms/cell/spider-pic.c @@ -240,7 +240,7 @@ static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc, static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic) { unsigned int virq; - u32 *imap, *tmp; + const u32 *imap, *tmp; int imaplen, intsize, unit; struct device_node *iic; struct irq_host *iic_host; @@ -258,25 +258,25 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic) #endif /* Now do the horrible hacks */ - tmp = (u32 *)get_property(pic->of_node, "#interrupt-cells", NULL); + tmp = get_property(pic->of_node, "#interrupt-cells", NULL); if (tmp == NULL) return NO_IRQ; intsize = *tmp; - imap = (u32 *)get_property(pic->of_node, "interrupt-map", &imaplen); + imap = get_property(pic->of_node, "interrupt-map", &imaplen); if (imap == NULL || imaplen < (intsize + 1)) return NO_IRQ; iic = of_find_node_by_phandle(imap[intsize]); if (iic == NULL) return NO_IRQ; imap += intsize + 1; - tmp = (u32 *)get_property(iic, "#interrupt-cells", NULL); + tmp = get_property(iic, "#interrupt-cells", NULL); if (tmp == NULL) return NO_IRQ; intsize = *tmp; /* Assume unit is last entry of interrupt specifier */ unit = imap[intsize - 1]; /* Ok, we have a unit, now let's try to get the node */ - tmp = (u32 *)get_property(iic, "ibm,interrupt-server-ranges", NULL); + tmp = get_property(iic, "ibm,interrupt-server-ranges", NULL); if (tmp == NULL) { of_node_put(iic); return NO_IRQ; diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index d06042deb02..3bd36d46ab4 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -488,10 +488,10 @@ int spu_irq_class_1_bottom(struct spu *spu) static int __init find_spu_node_id(struct device_node *spe) { - unsigned int *id; + const unsigned int *id; struct device_node *cpu; cpu = spe->parent->parent; - id = (unsigned int *)get_property(cpu, "node-id", NULL); + id = get_property(cpu, "node-id", NULL); return id ? *id : 0; } @@ -500,7 +500,7 @@ static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe, { static DEFINE_MUTEX(add_spumem_mutex); - struct address_prop { + const struct address_prop { unsigned long address; unsigned int len; } __attribute__((packed)) *p; @@ -511,7 +511,7 @@ static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe, struct zone *zone; int ret; - p = (void*)get_property(spe, prop, &proplen); + p = get_property(spe, prop, &proplen); WARN_ON(proplen != sizeof (*p)); start_pfn = p->address >> PAGE_SHIFT; @@ -531,12 +531,12 @@ static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe, static void __iomem * __init map_spe_prop(struct spu *spu, struct device_node *n, const char *name) { - struct address_prop { + const struct address_prop { unsigned long address; unsigned int len; } __attribute__((packed)) *prop; - void *p; + const void *p; int proplen; void* ret = NULL; int err = 0; @@ -570,14 +570,14 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np) { struct irq_host *host; unsigned int isrc; - u32 *tmp; + const u32 *tmp; host = iic_get_irq_host(spu->node); if (host == NULL) return -ENODEV; /* Get the interrupt source from the device-tree */ - tmp = (u32 *)get_property(np, "isrc", NULL); + tmp = get_property(np, "isrc", NULL); if (!tmp) return -ENODEV; spu->isrc = isrc = tmp[0]; @@ -593,7 +593,7 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np) static int __init spu_map_device(struct spu *spu, struct device_node *node) { - char *prop; + const char *prop; int ret; ret = -ENODEV; diff --git a/arch/powerpc/platforms/chrp/nvram.c b/arch/powerpc/platforms/chrp/nvram.c index 150f67d6f90..0dd4a64757d 100644 --- a/arch/powerpc/platforms/chrp/nvram.c +++ b/arch/powerpc/platforms/chrp/nvram.c @@ -67,13 +67,14 @@ static void chrp_nvram_write(int addr, unsigned char val) void __init chrp_nvram_init(void) { struct device_node *nvram; - unsigned int *nbytes_p, proplen; + const unsigned int *nbytes_p; + unsigned int proplen; nvram = of_find_node_by_type(NULL, "nvram"); if (nvram == NULL) return; - nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen); + nbytes_p = get_property(nvram, "#bytes", &proplen); if (nbytes_p == NULL || proplen != sizeof(unsigned int)) return; diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c index 6802cdc3168..0f4340506c7 100644 --- a/arch/powerpc/platforms/chrp/pci.c +++ b/arch/powerpc/platforms/chrp/pci.c @@ -214,11 +214,11 @@ void __init chrp_find_bridges(void) { struct device_node *dev; - int *bus_range; + const int *bus_range; int len, index = -1; struct pci_controller *hose; - unsigned int *dma; - char *model, *machine; + const unsigned int *dma; + const char *model, *machine; int is_longtrail = 0, is_mot = 0, is_pegasos = 0; struct device_node *root = find_path_device("/"); struct resource r; @@ -246,7 +246,7 @@ chrp_find_bridges(void) dev->full_name); continue; } - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s\n", dev->full_name); @@ -257,7 +257,7 @@ chrp_find_bridges(void) else printk(KERN_INFO "PCI buses %d..%d", bus_range[0], bus_range[1]); - printk(" controlled by %s", dev->type); + printk(" controlled by %s", dev->full_name); if (!is_longtrail) printk(" at %llx", (unsigned long long)r.start); printk("\n"); @@ -289,6 +289,19 @@ chrp_find_bridges(void) setup_indirect_pci(hose, 0xfec00cf8, 0xfee00cfc); } else if (is_pegasos == 2) { setup_peg2(hose, dev); + } else if (!strncmp(model, "IBM,CPC710", 10)) { + setup_indirect_pci(hose, + r.start + 0x000f8000, + r.start + 0x000f8010); + if (index == 0) { + dma = get_property(dev, "system-dma-base",&len); + if (dma && len >= sizeof(*dma)) { + dma = (unsigned int *) + (((unsigned long)dma) + + len - sizeof(*dma)); + pci_dram_offset = *dma; + } + } } else { printk("No methods for %s (model %s), using RTAS\n", dev->full_name, model); @@ -299,15 +312,35 @@ chrp_find_bridges(void) /* check the first bridge for a property that we can use to set pci_dram_offset */ - dma = (unsigned int *) - get_property(dev, "ibm,dma-ranges", &len); + dma = get_property(dev, "ibm,dma-ranges", &len); if (index == 0 && dma != NULL && len >= 6 * sizeof(*dma)) { pci_dram_offset = dma[2] - dma[3]; printk("pci_dram_offset = %lx\n", pci_dram_offset); } } +} + +/* SL82C105 IDE Control/Status Register */ +#define SL82C105_IDECSR 0x40 + +/* Fixup for Winbond ATA quirk, required for briq */ +void chrp_pci_fixup_winbond_ata(struct pci_dev *sl82c105) +{ + u8 progif; - /* Do not fixup interrupts from OF tree on pegasos */ - if (is_pegasos) - ppc_md.pcibios_fixup = NULL; + /* If non-briq machines need that fixup too, please speak up */ + if (!machine_is(chrp) || _chrp_type != _CHRP_briq) + return; + + if ((sl82c105->class & 5) != 5) { + printk("W83C553: Switching SL82C105 IDE to PCI native mode\n"); + /* Enable SL82C105 PCI native IDE mode */ + pci_read_config_byte(sl82c105, PCI_CLASS_PROG, &progif); + pci_write_config_byte(sl82c105, PCI_CLASS_PROG, progif | 0x05); + sl82c105->class |= 0x05; + /* Disable SL82C105 second port */ + pci_write_config_word(sl82c105, SL82C105_IDECSR, 0x0003); + } } +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105, + chrp_pci_fixup_winbond_ata); diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index 9c08ff32229..488dbd9b51a 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -74,6 +74,9 @@ extern irqreturn_t xmon_irq(int, void *, struct pt_regs *); extern unsigned long loops_per_jiffy; +/* To be replaced by RTAS when available */ +static unsigned int *briq_SPOR; + #ifdef CONFIG_SMP extern struct smp_ops_t chrp_smp_ops; #endif @@ -92,6 +95,15 @@ static const char *gg2_cachemodes[4] = { "Disabled", "Write-Through", "Copy-Back", "Transparent Mode" }; +static const char *chrp_names[] = { + "Unknown", + "","","", + "Motorola", + "IBM or Longtrail", + "Genesi Pegasos", + "Total Impact Briq" +}; + void chrp_show_cpuinfo(struct seq_file *m) { int i, sdramen; @@ -214,8 +226,7 @@ static void __init pegasos_set_l2cr(void) /* Enable L2 cache if needed */ np = find_type_devices("cpu"); if (np != NULL) { - unsigned int *l2cr = (unsigned int *) - get_property (np, "l2cr", NULL); + const unsigned int *l2cr = get_property(np, "l2cr", NULL); if (l2cr == NULL) { printk ("Pegasos l2cr : no cpu l2cr property found\n"); return; @@ -229,10 +240,18 @@ static void __init pegasos_set_l2cr(void) } } +static void briq_restart(char *cmd) +{ + local_irq_disable(); + if (briq_SPOR) + out_be32(briq_SPOR, 0); + for(;;); +} + void __init chrp_setup_arch(void) { struct device_node *root = find_path_device ("/"); - char *machine = NULL; + const char *machine = NULL; /* init to some ~sane value until calibrate_delay() runs */ loops_per_jiffy = 50000000/HZ; @@ -245,11 +264,16 @@ void __init chrp_setup_arch(void) _chrp_type = _CHRP_IBM; } else if (machine && strncmp(machine, "MOT", 3) == 0) { _chrp_type = _CHRP_Motorola; + } else if (machine && strncmp(machine, "TotalImpact,BRIQ-1", 18) == 0) { + _chrp_type = _CHRP_briq; + /* Map the SPOR register on briq and change the restart hook */ + briq_SPOR = (unsigned int *)ioremap(0xff0000e8, 4); + ppc_md.restart = briq_restart; } else { /* Let's assume it is an IBM chrp if all else fails */ _chrp_type = _CHRP_IBM; } - printk("chrp type = %x\n", _chrp_type); + printk("chrp type = %x [%s]\n", _chrp_type, chrp_names[_chrp_type]); rtas_initialize(); if (rtas_token("display-character") >= 0) @@ -328,7 +352,7 @@ static void __init chrp_find_openpic(void) struct device_node *np, *root; int len, i, j; int isu_size, idu_size; - unsigned int *iranges, *opprop = NULL; + const unsigned int *iranges, *opprop = NULL; int oplen = 0; unsigned long opaddr; int na = 1; @@ -338,8 +362,7 @@ static void __init chrp_find_openpic(void) return; root = of_find_node_by_path("/"); if (root) { - opprop = (unsigned int *) get_property - (root, "platform-open-pic", &oplen); + opprop = get_property(root, "platform-open-pic", &oplen); na = prom_n_addr_cells(root); } if (opprop && oplen >= na * sizeof(unsigned int)) { @@ -356,7 +379,7 @@ static void __init chrp_find_openpic(void) printk(KERN_INFO "OpenPIC at %lx\n", opaddr); - iranges = (unsigned int *) get_property(np, "interrupt-ranges", &len); + iranges = get_property(np, "interrupt-ranges", &len); if (iranges == NULL) len = 0; /* non-distributed mpic */ else @@ -442,8 +465,8 @@ static void __init chrp_find_8259(void) * from anyway */ for (np = find_devices("pci"); np != NULL; np = np->next) { - unsigned int *addrp = (unsigned int *) - get_property(np, "8259-interrupt-acknowledge", NULL); + const unsigned int *addrp = get_property(np, + "8259-interrupt-acknowledge", NULL); if (addrp == NULL) continue; @@ -502,7 +525,7 @@ void __init chrp_init2(void) { struct device_node *device; - unsigned int *p = NULL; + const unsigned int *p = NULL; #ifdef CONFIG_NVRAM chrp_nvram_init(); @@ -520,8 +543,7 @@ chrp_init2(void) */ device = find_devices("rtas"); if (device) - p = (unsigned int *) get_property - (device, "rtas-event-scan-rate", NULL); + p = get_property(device, "rtas-event-scan-rate", NULL); if (p && *p) { /* * Arrange to call chrp_event_scan at least *p times diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c index 5d393eb9493..e4f2b9df5e1 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -95,7 +95,7 @@ void mpc7448_hpc2_fixup_irq(struct pci_dev *dev) { struct pci_controller *hose; struct device_node *node; - unsigned int *interrupt; + const unsigned int *interrupt; int busnr; int len; u8 slot; @@ -112,7 +112,7 @@ void mpc7448_hpc2_fixup_irq(struct pci_dev *dev) if (!node) printk(KERN_ERR "No pci node found\n"); - interrupt = (unsigned int *) get_property(node, "interrupt-map", &len); + interrupt = get_property(node, "interrupt-map", &len); slot = find_slot_by_devfn(interrupt, dev->devfn); pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); if (pin == 0 || pin > 4) @@ -141,9 +141,9 @@ static void __init mpc7448_hpc2_setup_arch(void) cpu = of_find_node_by_type(NULL, "cpu"); if (cpu != 0) { - unsigned int *fp; + const unsigned int *fp; - fp = (int *)get_property(cpu, "clock-frequency", NULL); + fp = get_property(cpu, "clock-frequency", NULL); if (fp != 0) loops_per_jiffy = *fp / HZ; else diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig index 3d957a30c8c..887b68804e6 100644 --- a/arch/powerpc/platforms/iseries/Kconfig +++ b/arch/powerpc/platforms/iseries/Kconfig @@ -3,13 +3,17 @@ menu "iSeries device drivers" depends on PPC_ISERIES config VIOCONS - tristate "iSeries Virtual Console Support" + tristate "iSeries Virtual Console Support (Obsolete)" + help + This is the old virtual console driver for legacy iSeries. + You should use the iSeries Hypervisor Virtual Console + support instead. config VIODASD tristate "iSeries Virtual I/O disk support" help If you are running on an iSeries system and you want to use - virtual disks created and managed by OS/400, say Y. + virtual disks created and managed by OS/400, say Y. config VIOCD tristate "iSeries Virtual I/O CD support" diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c index d194140c1eb..e305deee7f4 100644 --- a/arch/powerpc/platforms/iseries/dt.c +++ b/arch/powerpc/platforms/iseries/dt.c @@ -1,5 +1,6 @@ /* - * Copyright (c) 2005-2006 Michael Ellerman, IBM Corporation + * Copyright (C) 2005-2006 Michael Ellerman, IBM Corporation + * Copyright (C) 2000-2004, IBM Corporation * * Description: * This file contains all the routines to build a flattened device @@ -33,13 +34,13 @@ #include <asm/iseries/hv_types.h> #include <asm/iseries/hv_lp_config.h> #include <asm/iseries/hv_call_xm.h> -#include <asm/iseries/it_exp_vpd_panel.h> #include <asm/udbg.h> #include "processor_vpd.h" #include "call_hpt.h" #include "call_pci.h" #include "pci.h" +#include "it_exp_vpd_panel.h" #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) @@ -76,6 +77,43 @@ static char __initdata device_type_pci[] = "pci"; static char __initdata device_type_vdevice[] = "vdevice"; static char __initdata device_type_vscsi[] = "vscsi"; + +/* EBCDIC to ASCII conversion routines */ + +static unsigned char __init e2a(unsigned char x) +{ + switch (x) { + case 0x81 ... 0x89: + return x - 0x81 + 'a'; + case 0x91 ... 0x99: + return x - 0x91 + 'j'; + case 0xA2 ... 0xA9: + return x - 0xA2 + 's'; + case 0xC1 ... 0xC9: + return x - 0xC1 + 'A'; + case 0xD1 ... 0xD9: + return x - 0xD1 + 'J'; + case 0xE2 ... 0xE9: + return x - 0xE2 + 'S'; + case 0xF0 ... 0xF9: + return x - 0xF0 + '0'; + } + return ' '; +} + +static unsigned char * __init strne2a(unsigned char *dest, + const unsigned char *src, size_t n) +{ + int i; + + n = strnlen(src, n); + + for (i = 0; i < n; i++) + dest[i] = e2a(src[i]); + + return dest; +} + static struct iseries_flat_dt * __init dt_init(void) { struct iseries_flat_dt *dt; @@ -298,7 +336,8 @@ static void __init dt_vdevices(struct iseries_flat_dt *dt) dt_prop_u32(dt, "#address-cells", 1); dt_prop_u32(dt, "#size-cells", 0); - dt_do_vdevice(dt, "vty", reg, -1, device_type_serial, NULL, 1); + dt_do_vdevice(dt, "vty", reg, -1, device_type_serial, + "IBM,iSeries-vty", 1); reg++; dt_do_vdevice(dt, "v-scsi", reg, -1, device_type_vscsi, diff --git a/arch/powerpc/platforms/iseries/hvlpconfig.c b/arch/powerpc/platforms/iseries/hvlpconfig.c index 663a1affb4b..f0475f0b185 100644 --- a/arch/powerpc/platforms/iseries/hvlpconfig.c +++ b/arch/powerpc/platforms/iseries/hvlpconfig.c @@ -18,9 +18,22 @@ #include <linux/module.h> #include <asm/iseries/hv_lp_config.h> +#include "it_lp_naca.h" HvLpIndex HvLpConfig_getLpIndex_outline(void) { return HvLpConfig_getLpIndex(); } EXPORT_SYMBOL(HvLpConfig_getLpIndex_outline); + +HvLpIndex HvLpConfig_getLpIndex(void) +{ + return itLpNaca.xLpIndex; +} +EXPORT_SYMBOL(HvLpConfig_getLpIndex); + +HvLpIndex HvLpConfig_getPrimaryLpIndex(void) +{ + return itLpNaca.xPrimaryLpIndex; +} +EXPORT_SYMBOL_GPL(HvLpConfig_getPrimaryLpIndex); diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c index e3bd2015f2c..f4cbbcf8773 100644 --- a/arch/powerpc/platforms/iseries/iommu.c +++ b/arch/powerpc/platforms/iseries/iommu.c @@ -88,6 +88,23 @@ static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages) } /* + * Structure passed to HvCallXm_getTceTableParms + */ +struct iommu_table_cb { + unsigned long itc_busno; /* Bus number for this tce table */ + unsigned long itc_start; /* Will be NULL for secondary */ + unsigned long itc_totalsize; /* Size (in pages) of whole table */ + unsigned long itc_offset; /* Index into real tce table of the + start of our section */ + unsigned long itc_size; /* Size (in pages) of our section */ + unsigned long itc_index; /* Index of this tce table */ + unsigned short itc_maxtables; /* Max num of tables for partition */ + unsigned char itc_virtbus; /* Flag to indicate virtual bus */ + unsigned char itc_slotno; /* IOA Tce Slot Index */ + unsigned char itc_rsvd[4]; +}; + +/* * Call Hv with the architected data structure to get TCE table info. * info. Put the returned data into the Linux representation of the * TCE table data. @@ -162,7 +179,7 @@ void iommu_devnode_init_iSeries(struct device_node *dn) { struct iommu_table *tbl; struct pci_dn *pdn = PCI_DN(dn); - u32 *lsn = (u32 *)get_property(dn, "linux,logical-slot-number", NULL); + const u32 *lsn = get_property(dn, "linux,logical-slot-number", NULL); BUG_ON(lsn == NULL); diff --git a/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h b/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h new file mode 100644 index 00000000000..6de9097b7f5 --- /dev/null +++ b/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2002 Dave Boutcher IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H +#define _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H + +/* + * This struct maps the panel information + * + * Warning: + * This data must match the architecture for the panel information + */ + +#include <asm/types.h> + +struct ItExtVpdPanel { + /* Definition of the Extended Vpd On Panel Data Area */ + char systemSerial[8]; + char mfgID[4]; + char reserved1[24]; + char machineType[4]; + char systemID[6]; + char somUniqueCnt[4]; + char serialNumberCount; + char reserved2[7]; + u16 bbu3; + u16 bbu2; + u16 bbu1; + char xLocationLabel[8]; + u8 xRsvd1[6]; + u16 xFrameId; + u8 xRsvd2[48]; +}; + +extern struct ItExtVpdPanel xItExtVpdPanel; + +#endif /* _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H */ diff --git a/arch/powerpc/platforms/iseries/it_lp_naca.h b/arch/powerpc/platforms/iseries/it_lp_naca.h new file mode 100644 index 00000000000..9bbf5898681 --- /dev/null +++ b/arch/powerpc/platforms/iseries/it_lp_naca.h @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2001 Mike Corrigan IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _PLATFORMS_ISERIES_IT_LP_NACA_H +#define _PLATFORMS_ISERIES_IT_LP_NACA_H + +#include <linux/types.h> + +/* + * This control block contains the data that is shared between the + * hypervisor (PLIC) and the OS. + */ + +struct ItLpNaca { +// CACHE_LINE_1 0x0000 - 0x007F Contains read-only data + u32 xDesc; // Eye catcher x00-x03 + u16 xSize; // Size of this class x04-x05 + u16 xIntHdlrOffset; // Offset to IntHdlr array x06-x07 + u8 xMaxIntHdlrEntries; // Number of entries in array x08-x08 + u8 xPrimaryLpIndex; // LP Index of Primary x09-x09 + u8 xServiceLpIndex; // LP Ind of Service Focal Pointx0A-x0A + u8 xLpIndex; // LP Index x0B-x0B + u16 xMaxLpQueues; // Number of allocated queues x0C-x0D + u16 xLpQueueOffset; // Offset to start of LP queues x0E-x0F + u8 xPirEnvironMode; // Piranha or hardware x10-x10 + u8 xPirConsoleMode; // Piranha console indicator x11-x11 + u8 xPirDasdMode; // Piranha dasd indicator x12-x12 + u8 xRsvd1_0[5]; // Reserved for Piranha related x13-x17 + u8 flags; // flags, see below x18-x1F + u8 xSpVpdFormat; // VPD areas are in CSP format ... + u8 xIntProcRatio; // Ratio of int procs to procs ... + u8 xRsvd1_2[5]; // Reserved ... + u16 xRsvd1_3; // Reserved x20-x21 + u16 xPlicVrmIndex; // VRM index of PLIC x22-x23 + u16 xMinSupportedSlicVrmInd;// Min supported OS VRM index x24-x25 + u16 xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27 + u64 xLoadAreaAddr; // ER address of load area x28-x2F + u32 xLoadAreaChunks; // Chunks for the load area x30-x33 + u32 xPaseSysCallCRMask; // Mask used to test CR before x34-x37 + // doing an ASR switch on PASE + // system call. + u64 xSlicSegmentTablePtr; // Pointer to Slic seg table. x38-x3f + u8 xRsvd1_4[64]; // x40-x7F + +// CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data + u8 xRsvd2_0[128]; // Reserved x00-x7F + +// CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators +// NB: Padding required to keep xInterrruptHdlr at x300 which is required +// for v4r4 PLIC. + u8 xOldLpQueue[128]; // LP Queue needed for v4r4 100-17F + u8 xRsvd3_0[384]; // Reserved 180-2FF + +// CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt +// handlers + u64 xInterruptHdlr[32]; // Interrupt handlers 300-x3FF +}; + +extern struct ItLpNaca itLpNaca; + +#define ITLPNACA_LPAR 0x80 /* Is LPAR installed on the system */ +#define ITLPNACA_PARTITIONED 0x40 /* Is the system partitioned */ +#define ITLPNACA_HWSYNCEDTBS 0x20 /* Hardware synced TBs */ +#define ITLPNACA_HMTINT 0x10 /* Utilize MHT for interrupts */ + +#endif /* _PLATFORMS_ISERIES_IT_LP_NACA_H */ diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c index a7769445d6c..8162049bb04 100644 --- a/arch/powerpc/platforms/iseries/lpardata.c +++ b/arch/powerpc/platforms/iseries/lpardata.c @@ -13,12 +13,10 @@ #include <asm/processor.h> #include <asm/ptrace.h> #include <asm/abs_addr.h> -#include <asm/iseries/it_lp_naca.h> #include <asm/lppaca.h> #include <asm/iseries/it_lp_reg_save.h> #include <asm/paca.h> #include <asm/iseries/lpar_map.h> -#include <asm/iseries/it_exp_vpd_panel.h> #include <asm/iseries/it_lp_queue.h> #include "naca.h" @@ -27,6 +25,8 @@ #include "ipl_parms.h" #include "processor_vpd.h" #include "release_data.h" +#include "it_exp_vpd_panel.h" +#include "it_lp_naca.h" /* The HvReleaseData is the root of the information shared between * the hypervisor and Linux. @@ -127,14 +127,12 @@ struct ItLpNaca itLpNaca = { (u64)instruction_access_slb_iSeries /* 0x480 I-SLB */ } }; -EXPORT_SYMBOL(itLpNaca); /* May be filled in by the hypervisor so cannot end up in the BSS */ struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data"))); /* May be filled in by the hypervisor so cannot end up in the BSS */ struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data"))); -EXPORT_SYMBOL(xItExtVpdPanel); #define maxPhysicalProcessors 32 diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c index 2a9f81ea27d..98c1c2440aa 100644 --- a/arch/powerpc/platforms/iseries/lpevents.c +++ b/arch/powerpc/platforms/iseries/lpevents.c @@ -20,7 +20,7 @@ #include <asm/iseries/it_lp_queue.h> #include <asm/iseries/hv_lp_event.h> #include <asm/iseries/hv_call_event.h> -#include <asm/iseries/it_lp_naca.h> +#include "it_lp_naca.h" /* * The LpQueue is used to pass event data from the hypervisor to diff --git a/arch/powerpc/platforms/iseries/main_store.h b/arch/powerpc/platforms/iseries/main_store.h index 74f6889f834..1a7a3f50e40 100644 --- a/arch/powerpc/platforms/iseries/main_store.h +++ b/arch/powerpc/platforms/iseries/main_store.h @@ -61,9 +61,9 @@ struct IoHriMainStoreSegment4 { }; /* Main Store VPD for Power4 */ -struct IoHriMainStoreChipInfo1 { - u32 chipMfgID __attribute((packed)); - char chipECLevel[4] __attribute((packed)); +struct __attribute((packed)) IoHriMainStoreChipInfo1 { + u32 chipMfgID; + char chipECLevel[4]; }; struct IoHriMainStoreVpdIdData { @@ -73,72 +73,72 @@ struct IoHriMainStoreVpdIdData { char serialNumber[12]; }; -struct IoHriMainStoreVpdFruData { - char fruLabel[8] __attribute((packed)); - u8 numberOfSlots __attribute((packed)); - u8 pluggingType __attribute((packed)); - u16 slotMapIndex __attribute((packed)); +struct __attribute((packed)) IoHriMainStoreVpdFruData { + char fruLabel[8]; + u8 numberOfSlots; + u8 pluggingType; + u16 slotMapIndex; }; -struct IoHriMainStoreAdrRangeBlock { - void *blockStart __attribute((packed)); - void *blockEnd __attribute((packed)); - u32 blockProcChipId __attribute((packed)); +struct __attribute((packed)) IoHriMainStoreAdrRangeBlock { + void *blockStart; + void *blockEnd; + u32 blockProcChipId; }; #define MaxAreaAdrRangeBlocks 4 -struct IoHriMainStoreArea4 { - u32 msVpdFormat __attribute((packed)); - u8 containedVpdType __attribute((packed)); - u8 reserved1 __attribute((packed)); - u16 reserved2 __attribute((packed)); - - u64 msExists __attribute((packed)); - u64 msFunctional __attribute((packed)); - - u32 memorySize __attribute((packed)); - u32 procNodeId __attribute((packed)); - - u32 numAdrRangeBlocks __attribute((packed)); - struct IoHriMainStoreAdrRangeBlock xAdrRangeBlock[MaxAreaAdrRangeBlocks] __attribute((packed)); - - struct IoHriMainStoreChipInfo1 chipInfo0 __attribute((packed)); - struct IoHriMainStoreChipInfo1 chipInfo1 __attribute((packed)); - struct IoHriMainStoreChipInfo1 chipInfo2 __attribute((packed)); - struct IoHriMainStoreChipInfo1 chipInfo3 __attribute((packed)); - struct IoHriMainStoreChipInfo1 chipInfo4 __attribute((packed)); - struct IoHriMainStoreChipInfo1 chipInfo5 __attribute((packed)); - struct IoHriMainStoreChipInfo1 chipInfo6 __attribute((packed)); - struct IoHriMainStoreChipInfo1 chipInfo7 __attribute((packed)); - - void *msRamAreaArray __attribute((packed)); - u32 msRamAreaArrayNumEntries __attribute((packed)); - u32 msRamAreaArrayEntrySize __attribute((packed)); - - u32 numaDimmExists __attribute((packed)); - u32 numaDimmFunctional __attribute((packed)); - void *numaDimmArray __attribute((packed)); - u32 numaDimmArrayNumEntries __attribute((packed)); - u32 numaDimmArrayEntrySize __attribute((packed)); - - struct IoHriMainStoreVpdIdData idData __attribute((packed)); - - u64 powerData __attribute((packed)); - u64 cardAssemblyPartNum __attribute((packed)); - u64 chipSerialNum __attribute((packed)); - - u64 reserved3 __attribute((packed)); - char reserved4[16] __attribute((packed)); - - struct IoHriMainStoreVpdFruData fruData __attribute((packed)); - - u8 vpdPortNum __attribute((packed)); - u8 reserved5 __attribute((packed)); - u8 frameId __attribute((packed)); - u8 rackUnit __attribute((packed)); - char asciiKeywordVpd[256] __attribute((packed)); - u32 reserved6 __attribute((packed)); +struct __attribute((packed)) IoHriMainStoreArea4 { + u32 msVpdFormat; + u8 containedVpdType; + u8 reserved1; + u16 reserved2; + + u64 msExists; + u64 msFunctional; + + u32 memorySize; + u32 procNodeId; + + u32 numAdrRangeBlocks; + struct IoHriMainStoreAdrRangeBlock xAdrRangeBlock[MaxAreaAdrRangeBlocks]; + + struct IoHriMainStoreChipInfo1 chipInfo0; + struct IoHriMainStoreChipInfo1 chipInfo1; + struct IoHriMainStoreChipInfo1 chipInfo2; + struct IoHriMainStoreChipInfo1 chipInfo3; + struct IoHriMainStoreChipInfo1 chipInfo4; + struct IoHriMainStoreChipInfo1 chipInfo5; + struct IoHriMainStoreChipInfo1 chipInfo6; + struct IoHriMainStoreChipInfo1 chipInfo7; + + void *msRamAreaArray; + u32 msRamAreaArrayNumEntries; + u32 msRamAreaArrayEntrySize; + + u32 numaDimmExists; + u32 numaDimmFunctional; + void *numaDimmArray; + u32 numaDimmArrayNumEntries; + u32 numaDimmArrayEntrySize; + + struct IoHriMainStoreVpdIdData idData; + + u64 powerData; + u64 cardAssemblyPartNum; + u64 chipSerialNum; + + u64 reserved3; + char reserved4[16]; + + struct IoHriMainStoreVpdFruData fruData; + + u8 vpdPortNum; + u8 reserved5; + u8 frameId; + u8 rackUnit; + char asciiKeywordVpd[256]; + u32 reserved6; }; diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c index 35bcc98111f..3eb12065df2 100644 --- a/arch/powerpc/platforms/iseries/pci.c +++ b/arch/powerpc/platforms/iseries/pci.c @@ -34,6 +34,7 @@ #include <asm/pci-bridge.h> #include <asm/iommu.h> #include <asm/abs_addr.h> +#include <asm/firmware.h> #include <asm/iseries/hv_call_xm.h> #include <asm/iseries/mf.h> @@ -176,12 +177,12 @@ void iSeries_pcibios_init(void) } while ((node = of_get_next_child(root, node)) != NULL) { HvBusNumber bus; - u32 *busp; + const u32 *busp; if ((node->type == NULL) || (strcmp(node->type, "pci") != 0)) continue; - busp = (u32 *)get_property(node, "bus-range", NULL); + busp = get_property(node, "bus-range", NULL); if (busp == NULL) continue; bus = *busp; @@ -221,10 +222,9 @@ void __init iSeries_pci_final_fixup(void) if (node != NULL) { struct pci_dn *pdn = PCI_DN(node); - u32 *agent; + const u32 *agent; - agent = (u32 *)get_property(node, "linux,agent-id", - NULL); + agent = get_property(node, "linux,agent-id", NULL); if ((pdn != NULL) && (agent != NULL)) { u8 irq = iSeries_allocate_IRQ(pdn->busno, 0, pdn->bussubno); @@ -271,46 +271,6 @@ void pcibios_fixup_resources(struct pci_dev *pdev) } /* - * I/0 Memory copy MUST use mmio commands on iSeries - * To do; For performance, include the hv call directly - */ -void iSeries_memset_io(volatile void __iomem *dest, char c, size_t Count) -{ - u8 ByteValue = c; - long NumberOfBytes = Count; - - while (NumberOfBytes > 0) { - iSeries_Write_Byte(ByteValue, dest++); - -- NumberOfBytes; - } -} -EXPORT_SYMBOL(iSeries_memset_io); - -void iSeries_memcpy_toio(volatile void __iomem *dest, void *source, size_t count) -{ - char *src = source; - long NumberOfBytes = count; - - while (NumberOfBytes > 0) { - iSeries_Write_Byte(*src++, dest++); - -- NumberOfBytes; - } -} -EXPORT_SYMBOL(iSeries_memcpy_toio); - -void iSeries_memcpy_fromio(void *dest, const volatile void __iomem *src, size_t count) -{ - char *dst = dest; - long NumberOfBytes = count; - - while (NumberOfBytes > 0) { - *dst++ = iSeries_Read_Byte(src++); - -- NumberOfBytes; - } -} -EXPORT_SYMBOL(iSeries_memcpy_fromio); - -/* * Look down the chain to find the matching Device Device */ static struct device_node *find_Device_Node(int bus, int devfn) @@ -492,7 +452,7 @@ static inline struct device_node *xlate_iomm_address( * iSeries_Read_Word = Read Word (16 bit) * iSeries_Read_Long = Read Long (32 bit) */ -u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress) +static u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress) { u64 BarOffset; u64 dsa; @@ -519,9 +479,8 @@ u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress) return (u8)ret.value; } -EXPORT_SYMBOL(iSeries_Read_Byte); -u16 iSeries_Read_Word(const volatile void __iomem *IoAddress) +static u16 iSeries_Read_Word(const volatile void __iomem *IoAddress) { u64 BarOffset; u64 dsa; @@ -549,9 +508,8 @@ u16 iSeries_Read_Word(const volatile void __iomem *IoAddress) return swab16((u16)ret.value); } -EXPORT_SYMBOL(iSeries_Read_Word); -u32 iSeries_Read_Long(const volatile void __iomem *IoAddress) +static u32 iSeries_Read_Long(const volatile void __iomem *IoAddress) { u64 BarOffset; u64 dsa; @@ -579,7 +537,6 @@ u32 iSeries_Read_Long(const volatile void __iomem *IoAddress) return swab32((u32)ret.value); } -EXPORT_SYMBOL(iSeries_Read_Long); /* * Write MM I/O Instructions for the iSeries @@ -588,7 +545,7 @@ EXPORT_SYMBOL(iSeries_Read_Long); * iSeries_Write_Word = Write Word(16 bit) * iSeries_Write_Long = Write Long(32 bit) */ -void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress) +static void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress) { u64 BarOffset; u64 dsa; @@ -613,9 +570,8 @@ void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress) rc = HvCall4(HvCallPciBarStore8, dsa, BarOffset, data, 0); } while (CheckReturnCode("WWB", DevNode, &retry, rc) != 0); } -EXPORT_SYMBOL(iSeries_Write_Byte); -void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress) +static void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress) { u64 BarOffset; u64 dsa; @@ -640,9 +596,8 @@ void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress) rc = HvCall4(HvCallPciBarStore16, dsa, BarOffset, swab16(data), 0); } while (CheckReturnCode("WWW", DevNode, &retry, rc) != 0); } -EXPORT_SYMBOL(iSeries_Write_Word); -void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress) +static void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress) { u64 BarOffset; u64 dsa; @@ -667,4 +622,224 @@ void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress) rc = HvCall4(HvCallPciBarStore32, dsa, BarOffset, swab32(data), 0); } while (CheckReturnCode("WWL", DevNode, &retry, rc) != 0); } -EXPORT_SYMBOL(iSeries_Write_Long); + +extern unsigned char __raw_readb(const volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return *(volatile unsigned char __force *)addr; +} +EXPORT_SYMBOL(__raw_readb); + +extern unsigned short __raw_readw(const volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return *(volatile unsigned short __force *)addr; +} +EXPORT_SYMBOL(__raw_readw); + +extern unsigned int __raw_readl(const volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return *(volatile unsigned int __force *)addr; +} +EXPORT_SYMBOL(__raw_readl); + +extern unsigned long __raw_readq(const volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return *(volatile unsigned long __force *)addr; +} +EXPORT_SYMBOL(__raw_readq); + +extern void __raw_writeb(unsigned char v, volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + *(volatile unsigned char __force *)addr = v; +} +EXPORT_SYMBOL(__raw_writeb); + +extern void __raw_writew(unsigned short v, volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + *(volatile unsigned short __force *)addr = v; +} +EXPORT_SYMBOL(__raw_writew); + +extern void __raw_writel(unsigned int v, volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + *(volatile unsigned int __force *)addr = v; +} +EXPORT_SYMBOL(__raw_writel); + +extern void __raw_writeq(unsigned long v, volatile void __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + *(volatile unsigned long __force *)addr = v; +} +EXPORT_SYMBOL(__raw_writeq); + +int in_8(const volatile unsigned char __iomem *addr) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) + return iSeries_Read_Byte(addr); + return __in_8(addr); +} +EXPORT_SYMBOL(in_8); + +void out_8(volatile unsigned char __iomem *addr, int val) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) + iSeries_Write_Byte(val, addr); + else + __out_8(addr, val); +} +EXPORT_SYMBOL(out_8); + +int in_le16(const volatile unsigned short __iomem *addr) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) + return iSeries_Read_Word(addr); + return __in_le16(addr); +} +EXPORT_SYMBOL(in_le16); + +int in_be16(const volatile unsigned short __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return __in_be16(addr); +} +EXPORT_SYMBOL(in_be16); + +void out_le16(volatile unsigned short __iomem *addr, int val) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) + iSeries_Write_Word(val, addr); + else + __out_le16(addr, val); +} +EXPORT_SYMBOL(out_le16); + +void out_be16(volatile unsigned short __iomem *addr, int val) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + __out_be16(addr, val); +} +EXPORT_SYMBOL(out_be16); + +unsigned in_le32(const volatile unsigned __iomem *addr) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) + return iSeries_Read_Long(addr); + return __in_le32(addr); +} +EXPORT_SYMBOL(in_le32); + +unsigned in_be32(const volatile unsigned __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return __in_be32(addr); +} +EXPORT_SYMBOL(in_be32); + +void out_le32(volatile unsigned __iomem *addr, int val) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) + iSeries_Write_Long(val, addr); + else + __out_le32(addr, val); +} +EXPORT_SYMBOL(out_le32); + +void out_be32(volatile unsigned __iomem *addr, int val) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + __out_be32(addr, val); +} +EXPORT_SYMBOL(out_be32); + +unsigned long in_le64(const volatile unsigned long __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return __in_le64(addr); +} +EXPORT_SYMBOL(in_le64); + +unsigned long in_be64(const volatile unsigned long __iomem *addr) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + return __in_be64(addr); +} +EXPORT_SYMBOL(in_be64); + +void out_le64(volatile unsigned long __iomem *addr, unsigned long val) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + __out_le64(addr, val); +} +EXPORT_SYMBOL(out_le64); + +void out_be64(volatile unsigned long __iomem *addr, unsigned long val) +{ + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + + __out_be64(addr, val); +} +EXPORT_SYMBOL(out_be64); + +void memset_io(volatile void __iomem *addr, int c, unsigned long n) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) { + volatile char __iomem *d = addr; + + while (n-- > 0) { + iSeries_Write_Byte(c, d++); + } + } else + eeh_memset_io(addr, c, n); +} +EXPORT_SYMBOL(memset_io); + +void memcpy_fromio(void *dest, const volatile void __iomem *src, + unsigned long n) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) { + char *d = dest; + const volatile char __iomem *s = src; + + while (n-- > 0) { + *d++ = iSeries_Read_Byte(s++); + } + } else + eeh_memcpy_fromio(dest, src, n); +} +EXPORT_SYMBOL(memcpy_fromio); + +void memcpy_toio(volatile void __iomem *dest, const void *src, unsigned long n) +{ + if (firmware_has_feature(FW_FEATURE_ISERIES)) { + const char *s = src; + volatile char __iomem *d = dest; + + while (n-- > 0) { + iSeries_Write_Byte(*s++, d++); + } + } else + eeh_memcpy_toio(dest, src, n); +} +EXPORT_SYMBOL(memcpy_toio); diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index c9605d773a7..7f1953066ff 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -59,6 +59,7 @@ #include "irq.h" #include "vpd_areas.h" #include "processor_vpd.h" +#include "it_lp_naca.h" #include "main_store.h" #include "call_sm.h" #include "call_hpt.h" diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c index 622a30149b4..9baa4ee8259 100644 --- a/arch/powerpc/platforms/iseries/viopath.c +++ b/arch/powerpc/platforms/iseries/viopath.c @@ -41,8 +41,8 @@ #include <asm/system.h> #include <asm/uaccess.h> +#include <asm/prom.h> #include <asm/iseries/hv_types.h> -#include <asm/iseries/it_exp_vpd_panel.h> #include <asm/iseries/hv_lp_event.h> #include <asm/iseries/hv_lp_config.h> #include <asm/iseries/mf.h> @@ -116,6 +116,8 @@ static int proc_viopath_show(struct seq_file *m, void *v) dma_addr_t handle; HvLpEvent_Rc hvrc; DECLARE_MUTEX_LOCKED(Semaphore); + struct device_node *node; + const char *sysid; buf = kmalloc(HW_PAGE_SIZE, GFP_KERNEL); if (!buf) @@ -143,20 +145,26 @@ static int proc_viopath_show(struct seq_file *m, void *v) buf[HW_PAGE_SIZE-1] = '\0'; seq_printf(m, "%s", buf); - seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap); - seq_printf(m, "SRLNBR=%c%c%c%c%c%c%c\n", - e2a(xItExtVpdPanel.mfgID[2]), - e2a(xItExtVpdPanel.mfgID[3]), - e2a(xItExtVpdPanel.systemSerial[1]), - e2a(xItExtVpdPanel.systemSerial[2]), - e2a(xItExtVpdPanel.systemSerial[3]), - e2a(xItExtVpdPanel.systemSerial[4]), - e2a(xItExtVpdPanel.systemSerial[5])); dma_unmap_single(iSeries_vio_dev, handle, HW_PAGE_SIZE, DMA_FROM_DEVICE); kfree(buf); + seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap); + + node = of_find_node_by_path("/"); + sysid = NULL; + if (node != NULL) + sysid = get_property(node, "system-id", NULL); + + if (sysid == NULL) + seq_printf(m, "SRLNBR=<UNKNOWN>\n"); + else + /* Skip "IBM," on front of serial number, see dt.c */ + seq_printf(m, "SRLNBR=%s\n", sysid + 4); + + of_node_put(node); + return 0; } diff --git a/arch/powerpc/platforms/iseries/vpdinfo.c b/arch/powerpc/platforms/iseries/vpdinfo.c index 23a6d1e5b42..9f83878a0c2 100644 --- a/arch/powerpc/platforms/iseries/vpdinfo.c +++ b/arch/powerpc/platforms/iseries/vpdinfo.c @@ -188,7 +188,7 @@ static void __init iSeries_Parse_Vpd(u8 *VpdData, int VpdDataLen, { u8 *TagPtr = VpdData; int DataLen = VpdDataLen - 3; - u8 PhbId; + u8 PhbId = 0xff; while ((*TagPtr != VpdEndOfAreaTag) && (DataLen > 0)) { int AreaLen = *(TagPtr + 1) + (*(TagPtr + 2) * 256); @@ -205,15 +205,16 @@ static void __init iSeries_Parse_Vpd(u8 *VpdData, int VpdDataLen, } } -static void __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent, +static int __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent, u8 *frame, char card[4]) { + int status = 0; int BusVpdLen = 0; u8 *BusVpdPtr = kmalloc(BUS_VPDSIZE, GFP_KERNEL); if (BusVpdPtr == NULL) { printk("PCI: Bus VPD Buffer allocation failure.\n"); - return; + return 0; } BusVpdLen = HvCallPci_getBusVpd(bus, iseries_hv_addr(BusVpdPtr), BUS_VPDSIZE); @@ -228,8 +229,10 @@ static void __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent, goto out_free; } iSeries_Parse_Vpd(BusVpdPtr, BusVpdLen, agent, frame, card); + status = 1; out_free: kfree(BusVpdPtr); + return status; } /* @@ -246,7 +249,7 @@ void __init iSeries_Device_Information(struct pci_dev *PciDev, int count) struct device_node *DevNode = PciDev->sysdata; struct pci_dn *pdn; u16 bus; - u8 frame; + u8 frame = 0; char card[4]; HvSubBusNumber subbus; HvAgentId agent; @@ -262,10 +265,11 @@ void __init iSeries_Device_Information(struct pci_dev *PciDev, int count) subbus = pdn->bussubno; agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus), ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus)); - iSeries_Get_Location_Code(bus, agent, &frame, card); - printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, Card %4s ", - count, bus, PCI_SLOT(PciDev->devfn), PciDev->vendor, - frame, card); - printk("0x%04X\n", (int)(PciDev->class >> 8)); + if (iSeries_Get_Location_Code(bus, agent, &frame, card)) { + printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, " + "Card %4s 0x%04X\n", count, bus, + PCI_SLOT(PciDev->devfn), PciDev->vendor, frame, + card, (int)(PciDev->class >> 8)); + } } diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c index 63a1670d3bf..c3aa46b8e2b 100644 --- a/arch/powerpc/platforms/maple/pci.c +++ b/arch/powerpc/platforms/maple/pci.c @@ -38,16 +38,16 @@ static struct pci_controller *u3_agp, *u3_ht; static int __init fixup_one_level_bus_range(struct device_node *node, int higher) { for (; node != 0;node = node->sibling) { - int * bus_range; - unsigned int *class_code; + const int *bus_range; + const unsigned int *class_code; int len; /* For PCI<->PCI bridges or CardBus bridges, we go down */ - class_code = (unsigned int *) get_property(node, "class-code", NULL); + class_code = get_property(node, "class-code", NULL); if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) continue; - bus_range = (int *) get_property(node, "bus-range", &len); + bus_range = get_property(node, "bus-range", &len); if (bus_range != NULL && len > 2 * sizeof(int)) { if (bus_range[1] > higher) higher = bus_range[1]; @@ -65,30 +65,36 @@ static int __init fixup_one_level_bus_range(struct device_node *node, int higher */ static void __init fixup_bus_range(struct device_node *bridge) { - int * bus_range; + int *bus_range; + struct property *prop; int len; /* Lookup the "bus-range" property for the hose */ - bus_range = (int *) get_property(bridge, "bus-range", &len); - if (bus_range == NULL || len < 2 * sizeof(int)) { + prop = of_find_property(bridge, "bus-range", &len); + if (prop == NULL || prop->value == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s\n", bridge->full_name); return; } + bus_range = (int *)prop->value; bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]); } -#define U3_AGP_CFA0(devfn, off) \ - ((1 << (unsigned long)PCI_SLOT(dev_fn)) \ - | (((unsigned long)PCI_FUNC(dev_fn)) << 8) \ - | (((unsigned long)(off)) & 0xFCUL)) +static unsigned long u3_agp_cfa0(u8 devfn, u8 off) +{ + return (1 << (unsigned long)PCI_SLOT(devfn)) | + ((unsigned long)PCI_FUNC(devfn) << 8) | + ((unsigned long)off & 0xFCUL); +} -#define U3_AGP_CFA1(bus, devfn, off) \ - ((((unsigned long)(bus)) << 16) \ - |(((unsigned long)(devfn)) << 8) \ - |(((unsigned long)(off)) & 0xFCUL) \ - |1UL) +static unsigned long u3_agp_cfa1(u8 bus, u8 devfn, u8 off) +{ + return ((unsigned long)bus << 16) | + ((unsigned long)devfn << 8) | + ((unsigned long)off & 0xFCUL) | + 1UL; +} static unsigned long u3_agp_cfg_access(struct pci_controller* hose, u8 bus, u8 dev_fn, u8 offset) @@ -98,9 +104,9 @@ static unsigned long u3_agp_cfg_access(struct pci_controller* hose, if (bus == hose->first_busno) { if (dev_fn < (11 << 3)) return 0; - caddr = U3_AGP_CFA0(dev_fn, offset); + caddr = u3_agp_cfa0(dev_fn, offset); } else - caddr = U3_AGP_CFA1(bus, dev_fn, offset); + caddr = u3_agp_cfa1(bus, dev_fn, offset); /* Uninorth will return garbage if we don't read back the value ! */ do { @@ -182,13 +188,15 @@ static struct pci_ops u3_agp_pci_ops = u3_agp_write_config }; +static unsigned long u3_ht_cfa0(u8 devfn, u8 off) +{ + return (devfn << 8) | off; +} -#define U3_HT_CFA0(devfn, off) \ - ((((unsigned long)devfn) << 8) | offset) -#define U3_HT_CFA1(bus, devfn, off) \ - (U3_HT_CFA0(devfn, off) \ - + (((unsigned long)bus) << 16) \ - + 0x01000000UL) +static unsigned long u3_ht_cfa1(u8 bus, u8 devfn, u8 off) +{ + return u3_ht_cfa0(devfn, off) + (bus << 16) + 0x01000000UL; +} static unsigned long u3_ht_cfg_access(struct pci_controller* hose, u8 bus, u8 devfn, u8 offset) @@ -196,9 +204,9 @@ static unsigned long u3_ht_cfg_access(struct pci_controller* hose, if (bus == hose->first_busno) { if (PCI_SLOT(devfn) == 0) return 0; - return ((unsigned long)hose->cfg_data) + U3_HT_CFA0(devfn, offset); + return ((unsigned long)hose->cfg_data) + u3_ht_cfa0(devfn, offset); } else - return ((unsigned long)hose->cfg_data) + U3_HT_CFA1(bus, devfn, offset); + return ((unsigned long)hose->cfg_data) + u3_ht_cfa1(bus, devfn, offset); } static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn, @@ -211,6 +219,9 @@ static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn, if (hose == NULL) return PCIBIOS_DEVICE_NOT_FOUND; + if (offset > 0xff) + return PCIBIOS_BAD_REGISTER_NUMBER; + addr = u3_ht_cfg_access(hose, bus->number, devfn, offset); if (!addr) return PCIBIOS_DEVICE_NOT_FOUND; @@ -243,6 +254,9 @@ static int u3_ht_write_config(struct pci_bus *bus, unsigned int devfn, if (hose == NULL) return PCIBIOS_DEVICE_NOT_FOUND; + if (offset > 0xff) + return PCIBIOS_BAD_REGISTER_NUMBER; + addr = u3_ht_cfg_access(hose, bus->number, devfn, offset); if (!addr) return PCIBIOS_DEVICE_NOT_FOUND; @@ -314,12 +328,12 @@ static int __init add_bridge(struct device_node *dev) int len; struct pci_controller *hose; char* disp_name; - int *bus_range; + const int *bus_range; int primary = 1; DBG("Adding PCI host bridge %s\n", dev->full_name); - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n", dev->full_name); diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 57567dfb981..fe6b9bff61b 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -99,8 +99,7 @@ static unsigned long maple_find_nvram_base(void) static void maple_restart(char *cmd) { unsigned int maple_nvram_base; - unsigned int maple_nvram_offset; - unsigned int maple_nvram_command; + const unsigned int *maple_nvram_offset, *maple_nvram_command; struct device_node *sp; maple_nvram_base = maple_find_nvram_base(); @@ -113,14 +112,12 @@ static void maple_restart(char *cmd) printk(KERN_EMERG "Maple: Unable to find Service Processor\n"); goto fail; } - maple_nvram_offset = *(unsigned int*) get_property(sp, - "restart-addr", NULL); - maple_nvram_command = *(unsigned int*) get_property(sp, - "restart-value", NULL); + maple_nvram_offset = get_property(sp, "restart-addr", NULL); + maple_nvram_command = get_property(sp, "restart-value", NULL); of_node_put(sp); /* send command */ - outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset); + outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset); for (;;) ; fail: printk(KERN_EMERG "Maple: Manual Restart Required\n"); @@ -129,8 +126,7 @@ static void maple_restart(char *cmd) static void maple_power_off(void) { unsigned int maple_nvram_base; - unsigned int maple_nvram_offset; - unsigned int maple_nvram_command; + const unsigned int *maple_nvram_offset, *maple_nvram_command; struct device_node *sp; maple_nvram_base = maple_find_nvram_base(); @@ -143,14 +139,12 @@ static void maple_power_off(void) printk(KERN_EMERG "Maple: Unable to find Service Processor\n"); goto fail; } - maple_nvram_offset = *(unsigned int*) get_property(sp, - "power-off-addr", NULL); - maple_nvram_command = *(unsigned int*) get_property(sp, - "power-off-value", NULL); + maple_nvram_offset = get_property(sp, "power-off-addr", NULL); + maple_nvram_command = get_property(sp, "power-off-value", NULL); of_node_put(sp); /* send command */ - outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset); + outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset); for (;;) ; fail: printk(KERN_EMERG "Maple: Manual Power-Down Required\n"); @@ -211,7 +205,7 @@ static void __init maple_init_early(void) static void __init maple_init_IRQ(void) { struct device_node *root, *np, *mpic_node = NULL; - unsigned int *opprop; + const unsigned int *opprop; unsigned long openpic_addr = 0; int naddr, n, i, opplen, has_isus = 0; struct mpic *mpic; @@ -241,8 +235,7 @@ static void __init maple_init_IRQ(void) /* Find address list in /platform-open-pic */ root = of_find_node_by_path("/"); naddr = prom_n_addr_cells(root); - opprop = (unsigned int *) get_property(root, "platform-open-pic", - &opplen); + opprop = get_property(root, "platform-open-pic", &opplen); if (opprop != 0) { openpic_addr = of_read_number(opprop, naddr); has_isus = (opplen > naddr); diff --git a/arch/powerpc/platforms/pasemi/Makefile b/arch/powerpc/platforms/pasemi/Makefile new file mode 100644 index 00000000000..1be1a993c5f --- /dev/null +++ b/arch/powerpc/platforms/pasemi/Makefile @@ -0,0 +1 @@ +obj-y += setup.o pci.o time.o diff --git a/arch/powerpc/platforms/pasemi/pasemi.h b/arch/powerpc/platforms/pasemi/pasemi.h new file mode 100644 index 00000000000..fd71d72736b --- /dev/null +++ b/arch/powerpc/platforms/pasemi/pasemi.h @@ -0,0 +1,8 @@ +#ifndef _PASEMI_PASEMI_H +#define _PASEMI_PASEMI_H + +extern unsigned long pas_get_boot_time(void); +extern void pas_pci_init(void); +extern void pas_pcibios_fixup(void); + +#endif /* _PASEMI_PASEMI_H */ diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/pasemi/pci.c new file mode 100644 index 00000000000..4679c523041 --- /dev/null +++ b/arch/powerpc/platforms/pasemi/pci.c @@ -0,0 +1,198 @@ +/* + * Copyright (C) 2006 PA Semi, Inc + * + * Authors: Kip Walker, PA Semi + * Olof Johansson, PA Semi + * + * Maintained by: Olof Johansson <olof@lixom.net> + * + * Based on arch/powerpc/platforms/maple/pci.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#include <linux/kernel.h> +#include <linux/pci.h> + +#include <asm/pci-bridge.h> +#include <asm/machdep.h> + +#include <asm/ppc-pci.h> + +#define PA_PXP_CFA(bus, devfn, off) (((bus) << 20) | ((devfn) << 12) | (off)) + +#define CONFIG_OFFSET_VALID(off) ((off) < 4096) + +static unsigned long pa_pxp_cfg_addr(struct pci_controller *hose, + u8 bus, u8 devfn, int offset) +{ + return ((unsigned long)hose->cfg_data) + PA_PXP_CFA(bus, devfn, offset); +} + +static int pa_pxp_read_config(struct pci_bus *bus, unsigned int devfn, + int offset, int len, u32 *val) +{ + struct pci_controller *hose; + unsigned long addr; + + hose = pci_bus_to_host(bus); + if (!hose) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (!CONFIG_OFFSET_VALID(offset)) + return PCIBIOS_BAD_REGISTER_NUMBER; + + addr = pa_pxp_cfg_addr(hose, bus->number, devfn, offset); + + /* + * Note: the caller has already checked that offset is + * suitably aligned and that len is 1, 2 or 4. + */ + switch (len) { + case 1: + *val = in_8((u8 *)addr); + break; + case 2: + *val = in_le16((u16 *)addr); + break; + default: + *val = in_le32((u32 *)addr); + break; + } + + return PCIBIOS_SUCCESSFUL; +} + +static int pa_pxp_write_config(struct pci_bus *bus, unsigned int devfn, + int offset, int len, u32 val) +{ + struct pci_controller *hose; + unsigned long addr; + + hose = pci_bus_to_host(bus); + if (!hose) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (!CONFIG_OFFSET_VALID(offset)) + return PCIBIOS_BAD_REGISTER_NUMBER; + + addr = pa_pxp_cfg_addr(hose, bus->number, devfn, offset); + + /* + * Note: the caller has already checked that offset is + * suitably aligned and that len is 1, 2 or 4. + */ + switch (len) { + case 1: + out_8((u8 *)addr, val); + (void) in_8((u8 *)addr); + break; + case 2: + out_le16((u16 *)addr, val); + (void) in_le16((u16 *)addr); + break; + default: + out_le32((u32 *)addr, val); + (void) in_le32((u32 *)addr); + break; + } + return PCIBIOS_SUCCESSFUL; +} + +static struct pci_ops pa_pxp_ops = { + pa_pxp_read_config, + pa_pxp_write_config, +}; + +static void __init setup_pa_pxp(struct pci_controller *hose) +{ + hose->ops = &pa_pxp_ops; + hose->cfg_data = ioremap(0xe0000000, 0x10000000); +} + +static int __init add_bridge(struct device_node *dev) +{ + struct pci_controller *hose; + + pr_debug("Adding PCI host bridge %s\n", dev->full_name); + + hose = pcibios_alloc_controller(dev); + if (!hose) + return -ENOMEM; + + hose->first_busno = 0; + hose->last_busno = 0xff; + + setup_pa_pxp(hose); + + printk(KERN_INFO "Found PA-PXP PCI host bridge.\n"); + + /* Interpret the "ranges" property */ + /* This also maps the I/O region and sets isa_io/mem_base */ + pci_process_bridge_OF_ranges(hose, dev, 1); + pci_setup_phb_io(hose, 1); + + return 0; +} + + +void __init pas_pcibios_fixup(void) +{ + struct pci_dev *dev = NULL; + + for_each_pci_dev(dev) + pci_read_irq_line(dev); +} + +static void __init pas_fixup_phb_resources(void) +{ + struct pci_controller *hose, *tmp; + + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + unsigned long offset = (unsigned long)hose->io_base_virt - pci_io_base; + hose->io_resource.start += offset; + hose->io_resource.end += offset; + printk(KERN_INFO "PCI Host %d, io start: %lx; io end: %lx\n", + hose->global_number, + hose->io_resource.start, hose->io_resource.end); + } +} + + +void __init pas_pci_init(void) +{ + struct device_node *np, *root; + + root = of_find_node_by_path("/"); + if (!root) { + printk(KERN_CRIT "pas_pci_init: can't find root " + "of device tree\n"); + return; + } + + for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) + if (np->name && !strcmp(np->name, "pxp") && !add_bridge(np)) + of_node_get(np); + + of_node_put(root); + + pas_fixup_phb_resources(); + + /* Setup the linkage between OF nodes and PHBs */ + pci_devs_phb_init(); + + /* Use the common resource allocation mechanism */ + pci_probe_only = 1; +} diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c new file mode 100644 index 00000000000..628482671c1 --- /dev/null +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -0,0 +1,188 @@ +/* + * Copyright (C) 2006 PA Semi, Inc + * + * Authors: Kip Walker, PA Semi + * Olof Johansson, PA Semi + * + * Maintained by: Olof Johansson <olof@lixom.net> + * + * Based on arch/powerpc/platforms/maple/setup.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/config.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/console.h> + +#include <asm/prom.h> +#include <asm/system.h> +#include <asm/iommu.h> +#include <asm/machdep.h> +#include <asm/mpic.h> +#include <asm/smp.h> +#include <asm/time.h> + +#include "pasemi.h" + +static void pas_restart(char *cmd) +{ + printk("restart unimplemented, looping...\n"); + for (;;) ; +} + +static void pas_power_off(void) +{ + printk("power off unimplemented, looping...\n"); + for (;;) ; +} + +static void pas_halt(void) +{ + pas_power_off(); +} + +#ifdef CONFIG_SMP +struct smp_ops_t pas_smp_ops = { + .probe = smp_mpic_probe, + .message_pass = smp_mpic_message_pass, + .kick_cpu = smp_generic_kick_cpu, + .setup_cpu = smp_mpic_setup_cpu, + .give_timebase = smp_generic_give_timebase, + .take_timebase = smp_generic_take_timebase, +}; +#endif /* CONFIG_SMP */ + +void __init pas_setup_arch(void) +{ +#ifdef CONFIG_SMP + /* Setup SMP callback */ + smp_ops = &pas_smp_ops; +#endif + /* Lookup PCI hosts */ + pas_pci_init(); + +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif + + printk(KERN_DEBUG "Using default idle loop\n"); +} + +static void iommu_dev_setup_null(struct pci_dev *dev) { } +static void iommu_bus_setup_null(struct pci_bus *bus) { } + +static void __init pas_init_early(void) +{ + /* No iommu code yet */ + ppc_md.iommu_dev_setup = iommu_dev_setup_null; + ppc_md.iommu_bus_setup = iommu_bus_setup_null; + pci_direct_iommu_init(); +} + +/* No legacy IO on our parts */ +static int pas_check_legacy_ioport(unsigned int baseport) +{ + return -ENODEV; +} + +static __init void pas_init_IRQ(void) +{ + struct device_node *np; + struct device_node *root, *mpic_node; + unsigned long openpic_addr; + const unsigned int *opprop; + int naddr, opplen; + struct mpic *mpic; + + mpic_node = NULL; + + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "open-pic")) { + mpic_node = np; + break; + } + if (!mpic_node) + for_each_node_by_type(np, "open-pic") { + mpic_node = np; + break; + } + if (!mpic_node) { + printk(KERN_ERR + "Failed to locate the MPIC interrupt controller\n"); + return; + } + + /* Find address list in /platform-open-pic */ + root = of_find_node_by_path("/"); + naddr = prom_n_addr_cells(root); + opprop = get_property(root, "platform-open-pic", &opplen); + if (!opprop) { + printk(KERN_ERR "No platform-open-pic property.\n"); + of_node_put(root); + return; + } + openpic_addr = of_read_number(opprop, naddr); + printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); + of_node_put(root); + + mpic = mpic_alloc(mpic_node, openpic_addr, MPIC_PRIMARY, 0, 0, + " PAS-OPIC "); + BUG_ON(!mpic); + + mpic_assign_isu(mpic, 0, openpic_addr + 0x10000); + mpic_init(mpic); + of_node_put(mpic_node); + of_node_put(root); +} + +static void __init pas_progress(char *s, unsigned short hex) +{ + printk("[%04x] : %s\n", hex, s ? s : ""); +} + + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init pas_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (!of_flat_dt_is_compatible(root, "PA6T-1682M")) + return 0; + + hpte_init_native(); + + return 1; +} + +define_machine(pas) { + .name = "PA Semi PA6T-1682M", + .probe = pas_probe, + .setup_arch = pas_setup_arch, + .init_early = pas_init_early, + .init_IRQ = pas_init_IRQ, + .get_irq = mpic_get_irq, + .pcibios_fixup = pas_pcibios_fixup, + .restart = pas_restart, + .power_off = pas_power_off, + .halt = pas_halt, + .get_boot_time = pas_get_boot_time, + .calibrate_decr = generic_calibrate_decr, + .check_legacy_ioport = pas_check_legacy_ioport, + .progress = pas_progress, +}; diff --git a/arch/powerpc/platforms/pasemi/time.c b/arch/powerpc/platforms/pasemi/time.c new file mode 100644 index 00000000000..9bd410b8fec --- /dev/null +++ b/arch/powerpc/platforms/pasemi/time.c @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2006 PA Semi, Inc + * + * Maintained by: Olof Johansson <olof@lixom.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/config.h> +#include <linux/time.h> + +#include <asm/time.h> + +unsigned long __init pas_get_boot_time(void) +{ + /* Let's just return a fake date right now */ + return mktime(2006, 1, 1, 12, 0, 0); +} diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c index d6641549105..afa593a8544 100644 --- a/arch/powerpc/platforms/powermac/backlight.c +++ b/arch/powerpc/platforms/powermac/backlight.c @@ -60,7 +60,8 @@ int pmac_has_backlight_type(const char *type) struct device_node* bk_node = find_devices("backlight"); if (bk_node) { - char *prop = get_property(bk_node, "backlight-control", NULL); + const char *prop = get_property(bk_node, + "backlight-control", NULL); if (prop && strncmp(prop, type, strlen(type)) == 0) return 1; } diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c index 62926248bdb..c2b6b4134f6 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_32.c +++ b/arch/powerpc/platforms/powermac/cpufreq_32.c @@ -421,7 +421,7 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy) static u32 read_gpio(struct device_node *np) { - u32 *reg = (u32 *)get_property(np, "reg", NULL); + const u32 *reg = get_property(np, "reg", NULL); u32 offset; if (reg == NULL) @@ -497,7 +497,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) "frequency-gpio"); struct device_node *slew_done_gpio_np = of_find_node_by_name(NULL, "slewing-done"); - u32 *value; + const u32 *value; /* * Check to see if it's GPIO driven or PMU only @@ -519,15 +519,15 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) */ if (frequency_gpio && slew_done_gpio) { int lenp, rc; - u32 *freqs, *ratio; + const u32 *freqs, *ratio; - freqs = (u32 *)get_property(cpunode, "bus-frequencies", &lenp); + freqs = get_property(cpunode, "bus-frequencies", &lenp); lenp /= sizeof(u32); if (freqs == NULL || lenp != 2) { printk(KERN_ERR "cpufreq: bus-frequencies incorrect or missing\n"); return 1; } - ratio = (u32 *)get_property(cpunode, "processor-to-bus-ratio*2", NULL); + ratio = get_property(cpunode, "processor-to-bus-ratio*2", NULL); if (ratio == NULL) { printk(KERN_ERR "cpufreq: processor-to-bus-ratio*2 missing\n"); return 1; @@ -562,7 +562,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) /* If we use the PMU, look for the min & max frequencies in the * device-tree */ - value = (u32 *)get_property(cpunode, "min-clock-frequency", NULL); + value = get_property(cpunode, "min-clock-frequency", NULL); if (!value) return 1; low_freq = (*value) / 1000; @@ -571,7 +571,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) if (low_freq < 100000) low_freq *= 10; - value = (u32 *)get_property(cpunode, "max-clock-frequency", NULL); + value = get_property(cpunode, "max-clock-frequency", NULL); if (!value) return 1; hi_freq = (*value) / 1000; @@ -611,13 +611,14 @@ static int pmac_cpufreq_init_7447A(struct device_node *cpunode) static int pmac_cpufreq_init_750FX(struct device_node *cpunode) { struct device_node *volt_gpio_np; - u32 pvr, *value; + u32 pvr; + const u32 *value; if (get_property(cpunode, "dynamic-power-step", NULL) == NULL) return 1; hi_freq = cur_freq; - value = (u32 *)get_property(cpunode, "reduced-clock-frequency", NULL); + value = get_property(cpunode, "reduced-clock-frequency", NULL); if (!value) return 1; low_freq = (*value) / 1000; @@ -650,7 +651,7 @@ static int pmac_cpufreq_init_750FX(struct device_node *cpunode) static int __init pmac_cpufreq_setup(void) { struct device_node *cpunode; - u32 *value; + const u32 *value; if (strstr(cmd_line, "nocpufreq")) return 0; @@ -661,7 +662,7 @@ static int __init pmac_cpufreq_setup(void) goto out; /* Get current cpu clock freq */ - value = (u32 *)get_property(cpunode, "clock-frequency", NULL); + value = get_property(cpunode, "clock-frequency", NULL); if (!value) goto out; cur_freq = (*value) / 1000; diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c index 7b1156ea534..d30466d7419 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_64.c +++ b/arch/powerpc/platforms/powermac/cpufreq_64.c @@ -89,7 +89,7 @@ static DEFINE_MUTEX(g5_switch_mutex); #ifdef CONFIG_PMAC_SMU -static u32 *g5_pmode_data; +static const u32 *g5_pmode_data; static int g5_pmode_max; static struct smu_sdbp_fvt *g5_fvt_table; /* table of op. points */ @@ -391,7 +391,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) unsigned int psize, ssize; unsigned long max_freq; char *freq_method, *volt_method; - u32 *valp, pvr_hi; + const u32 *valp; + u32 pvr_hi; int use_volts_vdnap = 0; int use_volts_smu = 0; int rc = -ENODEV; @@ -409,8 +410,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) /* Get first CPU node */ for (cpunode = NULL; (cpunode = of_get_next_child(cpus, cpunode)) != NULL;) { - u32 *reg = - (u32 *)get_property(cpunode, "reg", NULL); + const u32 *reg = get_property(cpunode, "reg", NULL); if (reg == NULL || (*reg) != 0) continue; if (!strcmp(cpunode->type, "cpu")) @@ -422,7 +422,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) } /* Check 970FX for now */ - valp = (u32 *)get_property(cpunode, "cpu-version", NULL); + valp = get_property(cpunode, "cpu-version", NULL); if (!valp) { DBG("No cpu-version property !\n"); goto bail_noprops; @@ -434,7 +434,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) } /* Look for the powertune data in the device-tree */ - g5_pmode_data = (u32 *)get_property(cpunode, "power-mode-data",&psize); + g5_pmode_data = get_property(cpunode, "power-mode-data",&psize); if (!g5_pmode_data) { DBG("No power-mode-data !\n"); goto bail_noprops; @@ -442,7 +442,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) g5_pmode_max = psize / sizeof(u32) - 1; if (use_volts_smu) { - struct smu_sdbp_header *shdr; + const struct smu_sdbp_header *shdr; /* Look for the FVT table */ shdr = smu_get_sdb_partition(SMU_SDB_FVT_ID, NULL); @@ -493,7 +493,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) * half freq in this version. So far, I haven't yet seen a machine * supporting anything else. */ - valp = (u32 *)get_property(cpunode, "clock-frequency", NULL); + valp = get_property(cpunode, "clock-frequency", NULL); if (!valp) return -ENODEV; max_freq = (*valp)/1000; @@ -541,8 +541,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) static int __init g5_pm72_cpufreq_init(struct device_node *cpus) { struct device_node *cpuid = NULL, *hwclock = NULL, *cpunode = NULL; - u8 *eeprom = NULL; - u32 *valp; + const u8 *eeprom = NULL; + const u32 *valp; u64 max_freq, min_freq, ih, il; int has_volt = 1, rc = 0; @@ -563,7 +563,7 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus) /* Lookup the cpuid eeprom node */ cpuid = of_find_node_by_path("/u3@0,f8000000/i2c@f8001000/cpuid@a0"); if (cpuid != NULL) - eeprom = (u8 *)get_property(cpuid, "cpuid", NULL); + eeprom = get_property(cpuid, "cpuid", NULL); if (eeprom == NULL) { printk(KERN_ERR "cpufreq: Can't find cpuid EEPROM !\n"); rc = -ENODEV; @@ -573,7 +573,8 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus) /* Lookup the i2c hwclock */ for (hwclock = NULL; (hwclock = of_find_node_by_name(hwclock, "i2c-hwclock")) != NULL;){ - char *loc = get_property(hwclock, "hwctrl-location", NULL); + const char *loc = get_property(hwclock, + "hwctrl-location", NULL); if (loc == NULL) continue; if (strcmp(loc, "CPU CLOCK")) @@ -637,7 +638,7 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus) */ /* Get max frequency from device-tree */ - valp = (u32 *)get_property(cpunode, "clock-frequency", NULL); + valp = get_property(cpunode, "clock-frequency", NULL); if (!valp) { printk(KERN_ERR "cpufreq: Can't find CPU frequency !\n"); rc = -ENODEV; diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index f8313bf9a9f..e49621be664 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -1058,8 +1058,8 @@ core99_reset_cpu(struct device_node *node, long param, long value) if (np == NULL) return -ENODEV; for (np = np->child; np != NULL; np = np->sibling) { - u32 *num = (u32 *)get_property(np, "reg", NULL); - u32 *rst = (u32 *)get_property(np, "soft-reset", NULL); + const u32 *num = get_property(np, "reg", NULL); + const u32 *rst = get_property(np, "soft-reset", NULL); if (num == NULL || rst == NULL) continue; if (param == *num) { @@ -1087,7 +1087,7 @@ core99_usb_enable(struct device_node *node, long param, long value) { struct macio_chip *macio; unsigned long flags; - char *prop; + const char *prop; int number; u32 reg; @@ -1096,7 +1096,7 @@ core99_usb_enable(struct device_node *node, long param, long value) macio->type != macio_intrepid) return -ENODEV; - prop = (char *)get_property(node, "AAPL,clock-id", NULL); + prop = get_property(node, "AAPL,clock-id", NULL); if (!prop) return -ENODEV; if (strncmp(prop, "usb0u048", 8) == 0) @@ -1507,8 +1507,8 @@ static long g5_reset_cpu(struct device_node *node, long param, long value) if (np == NULL) return -ENODEV; for (np = np->child; np != NULL; np = np->sibling) { - u32 *num = (u32 *)get_property(np, "reg", NULL); - u32 *rst = (u32 *)get_property(np, "soft-reset", NULL); + const u32 *num = get_property(np, "reg", NULL); + const u32 *rst = get_property(np, "soft-reset", NULL); if (num == NULL || rst == NULL) continue; if (param == *num) { @@ -2408,7 +2408,7 @@ static int __init probe_motherboard(void) */ dt = find_devices("device-tree"); if (dt != NULL) - model = (const char *) get_property(dt, "model", NULL); + model = get_property(dt, "model", NULL); for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) { if (strcmp(model, pmac_mb_defs[i].model_string) == 0) { pmac_mb = pmac_mb_defs[i]; @@ -2536,7 +2536,7 @@ found: */ static void __init probe_uninorth(void) { - u32 *addrp; + const u32 *addrp; phys_addr_t address; unsigned long actrl; @@ -2555,7 +2555,7 @@ static void __init probe_uninorth(void) if (uninorth_node == NULL) return; - addrp = (u32 *)get_property(uninorth_node, "reg", NULL); + addrp = get_property(uninorth_node, "reg", NULL); if (addrp == NULL) return; address = of_translate_address(uninorth_node, addrp); @@ -2596,7 +2596,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ struct device_node* node; int i; volatile u32 __iomem *base; - u32 *addrp, *revp; + const u32 *addrp, *revp; phys_addr_t addr; u64 size; @@ -2639,7 +2639,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ return; } if (type == macio_keylargo || type == macio_keylargo2) { - u32 *did = (u32 *)get_property(node, "device-id", NULL); + const u32 *did = get_property(node, "device-id", NULL); if (*did == 0x00000025) type = macio_pangea; if (*did == 0x0000003e) @@ -2652,7 +2652,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ macio_chips[i].base = base; macio_chips[i].flags = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON; macio_chips[i].name = macio_names[type]; - revp = (u32 *)get_property(node, "revision-id", NULL); + revp = get_property(node, "revision-id", NULL); if (revp) macio_chips[i].rev = *revp; printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n", @@ -2695,15 +2695,15 @@ static void __init initial_serial_shutdown(struct device_node *np) { int len; - struct slot_names_prop { + const struct slot_names_prop { int count; char name[1]; } *slots; - char *conn; + const char *conn; int port_type = PMAC_SCC_ASYNC; int modem = 0; - slots = (struct slot_names_prop *)get_property(np, "slot-names", &len); + slots = get_property(np, "slot-names", &len); conn = get_property(np, "AAPL,connector", &len); if (conn && (strcmp(conn, "infrared") == 0)) port_type = PMAC_SCC_IRDA; diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c index 8677f50c258..c2c7cf75dd5 100644 --- a/arch/powerpc/platforms/powermac/low_i2c.c +++ b/arch/powerpc/platforms/powermac/low_i2c.c @@ -477,7 +477,8 @@ static int kw_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize, static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np) { struct pmac_i2c_host_kw *host; - u32 *psteps, *prate, *addrp, steps; + const u32 *psteps, *prate, *addrp; + u32 steps; host = kzalloc(sizeof(struct pmac_i2c_host_kw), GFP_KERNEL); if (host == NULL) { @@ -490,7 +491,7 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np) * on all i2c keywest nodes so far ... we would have to fallback * to macio parsing if that wasn't the case */ - addrp = (u32 *)get_property(np, "AAPL,address", NULL); + addrp = get_property(np, "AAPL,address", NULL); if (addrp == NULL) { printk(KERN_ERR "low_i2c: Can't find address for %s\n", np->full_name); @@ -504,13 +505,13 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np) host->timeout_timer.function = kw_i2c_timeout; host->timeout_timer.data = (unsigned long)host; - psteps = (u32 *)get_property(np, "AAPL,address-step", NULL); + psteps = get_property(np, "AAPL,address-step", NULL); steps = psteps ? (*psteps) : 0x10; for (host->bsteps = 0; (steps & 0x01) == 0; host->bsteps++) steps >>= 1; /* Select interface rate */ host->speed = KW_I2C_MODE_25KHZ; - prate = (u32 *)get_property(np, "AAPL,i2c-rate", NULL); + prate = get_property(np, "AAPL,i2c-rate", NULL); if (prate) switch(*prate) { case 100: host->speed = KW_I2C_MODE_100KHZ; @@ -618,8 +619,8 @@ static void __init kw_i2c_probe(void) } else { for (child = NULL; (child = of_get_next_child(np, child)) != NULL;) { - u32 *reg = - (u32 *)get_property(child, "reg", NULL); + const u32 *reg = get_property(child, + "reg", NULL); if (reg == NULL) continue; kw_i2c_add(host, np, child, *reg); @@ -881,7 +882,7 @@ static void __init smu_i2c_probe(void) { struct device_node *controller, *busnode; struct pmac_i2c_bus *bus; - u32 *reg; + const u32 *reg; int sz; if (!smu_present()) @@ -904,7 +905,7 @@ static void __init smu_i2c_probe(void) if (strcmp(busnode->type, "i2c") && strcmp(busnode->type, "i2c-bus")) continue; - reg = (u32 *)get_property(busnode, "reg", NULL); + reg = get_property(busnode, "reg", NULL); if (reg == NULL) continue; @@ -948,9 +949,8 @@ struct pmac_i2c_bus *pmac_i2c_find_bus(struct device_node *node) list_for_each_entry(bus, &pmac_i2c_busses, link) { if (p == bus->busnode) { if (prev && bus->flags & pmac_i2c_multibus) { - u32 *reg; - reg = (u32 *)get_property(prev, "reg", - NULL); + const u32 *reg; + reg = get_property(prev, "reg", NULL); if (!reg) continue; if (((*reg) >> 8) != bus->channel) @@ -971,7 +971,7 @@ EXPORT_SYMBOL_GPL(pmac_i2c_find_bus); u8 pmac_i2c_get_dev_addr(struct device_node *device) { - u32 *reg = (u32 *)get_property(device, "reg", NULL); + const u32 *reg = get_property(device, "reg", NULL); if (reg == NULL) return 0; diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index 205d0447116..9923adc5248 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -66,16 +66,16 @@ struct device_node *k2_skiplist[2]; static int __init fixup_one_level_bus_range(struct device_node *node, int higher) { for (; node != 0;node = node->sibling) { - int * bus_range; - unsigned int *class_code; + const int * bus_range; + const unsigned int *class_code; int len; /* For PCI<->PCI bridges or CardBus bridges, we go down */ - class_code = (unsigned int *) get_property(node, "class-code", NULL); + class_code = get_property(node, "class-code", NULL); if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) continue; - bus_range = (int *) get_property(node, "bus-range", &len); + bus_range = get_property(node, "bus-range", &len); if (bus_range != NULL && len > 2 * sizeof(int)) { if (bus_range[1] > higher) higher = bus_range[1]; @@ -93,13 +93,15 @@ static int __init fixup_one_level_bus_range(struct device_node *node, int higher */ static void __init fixup_bus_range(struct device_node *bridge) { - int * bus_range; - int len; + int *bus_range, len; + struct property *prop; /* Lookup the "bus-range" property for the hose */ - bus_range = (int *) get_property(bridge, "bus-range", &len); - if (bus_range == NULL || len < 2 * sizeof(int)) + prop = of_find_property(bridge, "bus-range", &len); + if (prop == NULL || prop->length < 2 * sizeof(int)) return; + + bus_range = (int *)prop->value; bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]); } @@ -237,7 +239,7 @@ static struct pci_ops macrisc_pci_ops = static int chaos_validate_dev(struct pci_bus *bus, int devfn, int offset) { struct device_node *np; - u32 *vendor, *device; + const u32 *vendor, *device; if (offset >= 0x100) return PCIBIOS_BAD_REGISTER_NUMBER; @@ -245,8 +247,8 @@ static int chaos_validate_dev(struct pci_bus *bus, int devfn, int offset) if (np == NULL) return PCIBIOS_DEVICE_NOT_FOUND; - vendor = (u32 *)get_property(np, "vendor-id", NULL); - device = (u32 *)get_property(np, "device-id", NULL); + vendor = get_property(np, "vendor-id", NULL); + device = get_property(np, "device-id", NULL); if (vendor == NULL || device == NULL) return PCIBIOS_DEVICE_NOT_FOUND; @@ -686,20 +688,21 @@ static void __init fixup_nec_usb2(void) for (nec = NULL; (nec = of_find_node_by_name(nec, "usb")) != NULL;) { struct pci_controller *hose; - u32 data, *prop; + u32 data; + const u32 *prop; u8 bus, devfn; - prop = (u32 *)get_property(nec, "vendor-id", NULL); + prop = get_property(nec, "vendor-id", NULL); if (prop == NULL) continue; if (0x1033 != *prop) continue; - prop = (u32 *)get_property(nec, "device-id", NULL); + prop = get_property(nec, "device-id", NULL); if (prop == NULL) continue; if (0x0035 != *prop) continue; - prop = (u32 *)get_property(nec, "reg", NULL); + prop = get_property(nec, "reg", NULL); if (prop == NULL) continue; devfn = (prop[0] >> 8) & 0xff; @@ -898,7 +901,7 @@ static int __init add_bridge(struct device_node *dev) struct pci_controller *hose; struct resource rsrc; char *disp_name; - int *bus_range; + const int *bus_range; int primary = 1, has_address = 0; DBG("Adding PCI host bridge %s\n", dev->full_name); @@ -907,7 +910,7 @@ static int __init add_bridge(struct device_node *dev) has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); /* Get bus range if any */ - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, assume" " bus 0\n", dev->full_name); diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c index aacfa59595d..ee3b223ab17 100644 --- a/arch/powerpc/platforms/powermac/pfunc_base.c +++ b/arch/powerpc/platforms/powermac/pfunc_base.c @@ -114,7 +114,7 @@ static void macio_gpio_init_one(struct macio_chip *macio) * we just create them all */ for (gp = NULL; (gp = of_get_next_child(gparent, gp)) != NULL;) { - u32 *reg = (u32 *)get_property(gp, "reg", NULL); + const u32 *reg = get_property(gp, "reg", NULL); unsigned long offset; if (reg == NULL) continue; diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c index b117adbf957..7651f278615 100644 --- a/arch/powerpc/platforms/powermac/pfunc_core.c +++ b/arch/powerpc/platforms/powermac/pfunc_core.c @@ -813,14 +813,15 @@ struct pmf_function *__pmf_find_function(struct device_node *target, struct pmf_device *dev; struct pmf_function *func, *result = NULL; char fname[64]; - u32 *prop, ph; + const u32 *prop; + u32 ph; /* * Look for a "platform-*" function reference. If we can't find * one, then we fallback to a direct call attempt */ snprintf(fname, 63, "platform-%s", name); - prop = (u32 *)get_property(target, fname, NULL); + prop = get_property(target, fname, NULL); if (prop == NULL) goto find_it; ph = *prop; diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 31a9da769fa..824a618396a 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -116,7 +116,7 @@ extern struct smp_ops_t core99_smp_ops; static void pmac_show_cpuinfo(struct seq_file *m) { struct device_node *np; - char *pp; + const char *pp; int plen; int mbmodel; unsigned int mbflags; @@ -134,12 +134,12 @@ static void pmac_show_cpuinfo(struct seq_file *m) seq_printf(m, "machine\t\t: "); np = of_find_node_by_path("/"); if (np != NULL) { - pp = (char *) get_property(np, "model", NULL); + pp = get_property(np, "model", NULL); if (pp != NULL) seq_printf(m, "%s\n", pp); else seq_printf(m, "PowerMac\n"); - pp = (char *) get_property(np, "compatible", &plen); + pp = get_property(np, "compatible", &plen); if (pp != NULL) { seq_printf(m, "motherboard\t:"); while (plen > 0) { @@ -163,10 +163,8 @@ static void pmac_show_cpuinfo(struct seq_file *m) if (np == NULL) np = of_find_node_by_type(NULL, "cache"); if (np != NULL) { - unsigned int *ic = (unsigned int *) - get_property(np, "i-cache-size", NULL); - unsigned int *dc = (unsigned int *) - get_property(np, "d-cache-size", NULL); + const unsigned int *ic = get_property(np, "i-cache-size", NULL); + const unsigned int *dc = get_property(np, "d-cache-size", NULL); seq_printf(m, "L2 cache\t:"); has_l2cache = 1; if (get_property(np, "cache-unified", NULL) != 0 && dc) { @@ -254,7 +252,7 @@ static void __init l2cr_init(void) if (np == 0) np = find_type_devices("cpu"); if (np != 0) { - unsigned int *l2cr = (unsigned int *) + const unsigned int *l2cr = get_property(np, "l2cr-value", NULL); if (l2cr != 0) { ppc_override_l2cr = 1; @@ -277,7 +275,7 @@ static void __init l2cr_init(void) static void __init pmac_setup_arch(void) { struct device_node *cpu, *ic; - int *fp; + const int *fp; unsigned long pvr; pvr = PVR_VER(mfspr(SPRN_PVR)); @@ -287,7 +285,7 @@ static void __init pmac_setup_arch(void) loops_per_jiffy = 50000000 / HZ; cpu = of_find_node_by_type(NULL, "cpu"); if (cpu != NULL) { - fp = (int *) get_property(cpu, "clock-frequency", NULL); + fp = get_property(cpu, "clock-frequency", NULL); if (fp != NULL) { if (pvr >= 0x30 && pvr < 0x80) /* PPC970 etc. */ diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index 827b7121ffb..1949b657b09 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -548,7 +548,7 @@ static void __init smp_core99_setup_i2c_hwsync(int ncpus) struct device_node *cc = NULL; struct device_node *p; const char *name = NULL; - u32 *reg; + const u32 *reg; int ok; /* Look for the clock chip */ @@ -562,7 +562,7 @@ static void __init smp_core99_setup_i2c_hwsync(int ncpus) pmac_tb_clock_chip_host = pmac_i2c_find_bus(cc); if (pmac_tb_clock_chip_host == NULL) continue; - reg = (u32 *)get_property(cc, "reg", NULL); + reg = get_property(cc, "reg", NULL); if (reg == NULL) continue; switch (*reg) { @@ -702,13 +702,12 @@ static void __init smp_core99_setup(int ncpus) /* GPIO based HW sync on ppc32 Core99 */ if (pmac_tb_freeze == NULL && !machine_is_compatible("MacRISC4")) { struct device_node *cpu; - u32 *tbprop = NULL; + const u32 *tbprop = NULL; core99_tb_gpio = KL_GPIO_TB_ENABLE; /* default value */ cpu = of_find_node_by_type(NULL, "cpu"); if (cpu != NULL) { - tbprop = (u32 *)get_property(cpu, "timebase-enable", - NULL); + tbprop = get_property(cpu, "timebase-enable", NULL); if (tbprop) core99_tb_gpio = *tbprop; of_node_put(cpu); diff --git a/arch/powerpc/platforms/powermac/udbg_scc.c b/arch/powerpc/platforms/powermac/udbg_scc.c index 37e5b1eff91..ce1a235855f 100644 --- a/arch/powerpc/platforms/powermac/udbg_scc.c +++ b/arch/powerpc/platforms/powermac/udbg_scc.c @@ -68,11 +68,11 @@ static unsigned char scc_inittab[] = { void udbg_scc_init(int force_scc) { - u32 *reg; + const u32 *reg; unsigned long addr; struct device_node *stdout = NULL, *escc = NULL, *macio = NULL; struct device_node *ch, *ch_def = NULL, *ch_a = NULL; - char *path; + const char *path; int i, x; escc = of_find_node_by_name(NULL, "escc"); @@ -81,7 +81,7 @@ void udbg_scc_init(int force_scc) macio = of_get_parent(escc); if (macio == NULL) goto bail; - path = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + path = get_property(of_chosen, "linux,stdout-path", NULL); if (path != NULL) stdout = of_find_node_by_path(path); for (ch = NULL; (ch = of_get_next_child(escc, ch)) != NULL;) { @@ -96,13 +96,13 @@ void udbg_scc_init(int force_scc) ch = ch_def ? ch_def : ch_a; /* Get address within mac-io ASIC */ - reg = (u32 *)get_property(escc, "reg", NULL); + reg = get_property(escc, "reg", NULL); if (reg == NULL) goto bail; addr = reg[0]; /* Get address of mac-io PCI itself */ - reg = (u32 *)get_property(macio, "assigned-addresses", NULL); + reg = get_property(macio, "assigned-addresses", NULL); if (reg == NULL) goto bail; addr += reg[2]; diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile index e5e0ff46690..997243a91be 100644 --- a/arch/powerpc/platforms/pseries/Makefile +++ b/arch/powerpc/platforms/pseries/Makefile @@ -12,3 +12,4 @@ obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o obj-$(CONFIG_HVCS) += hvcserver.o +obj-$(CONFIG_HCALL_STATS) += hvCall_inst.o diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 32eaddfa547..84bc8f7e17e 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -449,7 +449,11 @@ EXPORT_SYMBOL(eeh_check_failure); /* ------------------------------------------------------------- */ /* The code below deals with error recovery */ -/** Return negative value if a permanent error, else return +/** + * eeh_slot_availability - returns error status of slot + * @pdn pci device node + * + * Return negative value if a permanent error, else return * a number of milliseconds to wait until the PCI slot is * ready to be used. */ @@ -474,11 +478,42 @@ eeh_slot_availability(struct pci_dn *pdn) printk (KERN_ERR "EEH: Slot unavailable: rc=%d, rets=%d %d %d\n", rc, rets[0], rets[1], rets[2]); - return -1; + return -2; +} + +/** + * rtas_pci_enable - enable MMIO or DMA transfers for this slot + * @pdn pci device node + */ + +int +rtas_pci_enable(struct pci_dn *pdn, int function) +{ + int config_addr; + int rc; + + /* Use PE configuration address, if present */ + config_addr = pdn->eeh_config_addr; + if (pdn->eeh_pe_config_addr) + config_addr = pdn->eeh_pe_config_addr; + + rc = rtas_call(ibm_set_eeh_option, 4, 1, NULL, + config_addr, + BUID_HI(pdn->phb->buid), + BUID_LO(pdn->phb->buid), + function); + + if (rc) + printk(KERN_WARNING "EEH: Cannot enable function %d, err=%d dn=%s\n", + function, rc, pdn->node->full_name); + + return rc; } -/** rtas_pci_slot_reset raises/lowers the pci #RST line - * state: 1/0 to raise/lower the #RST +/** + * rtas_pci_slot_reset - raises/lowers the pci #RST line + * @pdn pci device node + * @state: 1/0 to raise/lower the #RST * * Clear the EEH-frozen condition on a slot. This routine * asserts the PCI #RST line if the 'state' argument is '1', @@ -511,24 +546,21 @@ rtas_pci_slot_reset(struct pci_dn *pdn, int state) BUID_HI(pdn->phb->buid), BUID_LO(pdn->phb->buid), state); - if (rc) { - printk (KERN_WARNING "EEH: Unable to reset the failed slot, (%d) #RST=%d dn=%s\n", + if (rc) + printk (KERN_WARNING "EEH: Unable to reset the failed slot," + " (%d) #RST=%d dn=%s\n", rc, state, pdn->node->full_name); - return; - } } -/** rtas_set_slot_reset -- assert the pci #RST line for 1/4 second - * dn -- device node to be reset. +/** + * rtas_set_slot_reset -- assert the pci #RST line for 1/4 second + * @pdn: pci device node to be reset. * * Return 0 if success, else a non-zero value. */ -int -rtas_set_slot_reset(struct pci_dn *pdn) +static void __rtas_set_slot_reset(struct pci_dn *pdn) { - int i, rc; - rtas_pci_slot_reset (pdn, 1); /* The PCI bus requires that the reset be held high for at least @@ -549,17 +581,33 @@ rtas_set_slot_reset(struct pci_dn *pdn) * up traffic. */ #define PCI_BUS_SETTLE_TIME_MSEC 1800 msleep (PCI_BUS_SETTLE_TIME_MSEC); +} + +int rtas_set_slot_reset(struct pci_dn *pdn) +{ + int i, rc; + + __rtas_set_slot_reset(pdn); /* Now double check with the firmware to make sure the device is * ready to be used; if not, wait for recovery. */ for (i=0; i<10; i++) { rc = eeh_slot_availability (pdn); - if (rc < 0) - printk (KERN_ERR "EEH: failed (%d) to reset slot %s\n", rc, pdn->node->full_name); if (rc == 0) return 0; - if (rc < 0) + + if (rc == -2) { + printk (KERN_ERR "EEH: failed (%d) to reset slot %s\n", + i, pdn->node->full_name); + __rtas_set_slot_reset(pdn); + continue; + } + + if (rc < 0) { + printk (KERN_ERR "EEH: unrecoverable slot failure %s\n", + pdn->node->full_name); return -1; + } msleep (rc+100); } @@ -582,6 +630,8 @@ rtas_set_slot_reset(struct pci_dn *pdn) /** * __restore_bars - Restore the Base Address Registers + * @pdn: pci device node + * * Loads the PCI configuration space base address registers, * the expansion ROM base address, the latency timer, and etc. * from the saved values in the device node. @@ -691,11 +741,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data) { struct eeh_early_enable_info *info = data; int ret; - char *status = get_property(dn, "status", NULL); - u32 *class_code = (u32 *)get_property(dn, "class-code", NULL); - u32 *vendor_id = (u32 *)get_property(dn, "vendor-id", NULL); - u32 *device_id = (u32 *)get_property(dn, "device-id", NULL); - u32 *regs; + const char *status = get_property(dn, "status", NULL); + const u32 *class_code = get_property(dn, "class-code", NULL); + const u32 *vendor_id = get_property(dn, "vendor-id", NULL); + const u32 *device_id = get_property(dn, "device-id", NULL); + const u32 *regs; int enable; struct pci_dn *pdn = PCI_DN(dn); @@ -737,7 +787,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data) /* Ok... see if this device supports EEH. Some do, some don't, * and the only way to find out is to check each and every one. */ - regs = (u32 *)get_property(dn, "reg", NULL); + regs = get_property(dn, "reg", NULL); if (regs) { /* First register entry is addr (00BBSS00) */ /* Try to enable eeh */ diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c index c37a8497c60..b6b462d3c60 100644 --- a/arch/powerpc/platforms/pseries/eeh_cache.c +++ b/arch/powerpc/platforms/pseries/eeh_cache.c @@ -157,6 +157,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo, if (!piar) return NULL; + pci_dev_get(dev); piar->addr_lo = alo; piar->addr_hi = ahi; piar->pcidev = dev; @@ -178,7 +179,6 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev) struct device_node *dn; struct pci_dn *pdn; int i; - int inserted = 0; dn = pci_device_to_OF_node(dev); if (!dn) { @@ -197,9 +197,6 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev) return; } - /* The cache holds a reference to the device... */ - pci_dev_get(dev); - /* Walk resources on this device, poke them into the tree */ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { unsigned long start = pci_resource_start(dev,i); @@ -212,12 +209,7 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev) if (start == 0 || ~start == 0 || end == 0 || ~end == 0) continue; pci_addr_cache_insert(dev, start, end, flags); - inserted = 1; } - - /* If there was nothing to add, the cache has no reference... */ - if (!inserted) - pci_dev_put(dev); } /** @@ -240,7 +232,6 @@ void pci_addr_cache_insert_device(struct pci_dev *dev) static inline void __pci_addr_cache_remove_device(struct pci_dev *dev) { struct rb_node *n; - int removed = 0; restart: n = rb_first(&pci_io_addr_cache_root.rb_root); @@ -250,16 +241,12 @@ restart: if (piar->pcidev == dev) { rb_erase(n, &pci_io_addr_cache_root.rb_root); - removed = 1; + pci_dev_put(piar->pcidev); kfree(piar); goto restart; } n = rb_next(n); } - - /* The cache no longer holds its reference to this device... */ - if (removed) - pci_dev_put(dev); } /** diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c index aaad2c0afcb..c2bc9904f1c 100644 --- a/arch/powerpc/platforms/pseries/eeh_driver.c +++ b/arch/powerpc/platforms/pseries/eeh_driver.c @@ -77,8 +77,12 @@ static int irq_in_use(unsigned int irq) } /* ------------------------------------------------------- */ -/** eeh_report_error - report an EEH error to each device, - * collect up and merge the device responses. +/** + * eeh_report_error - report pci error to each device driver + * + * Report an EEH error to each device driver, collect up and + * merge the device driver responses. Cumulative response + * passed back in "userdata". */ static void eeh_report_error(struct pci_dev *dev, void *userdata) @@ -96,24 +100,49 @@ static void eeh_report_error(struct pci_dev *dev, void *userdata) PCI_DN(dn)->eeh_mode |= EEH_MODE_IRQ_DISABLED; disable_irq_nosync(dev->irq); } - if (!driver->err_handler) - return; - if (!driver->err_handler->error_detected) + if (!driver->err_handler || + !driver->err_handler->error_detected) return; rc = driver->err_handler->error_detected (dev, pci_channel_io_frozen); if (*res == PCI_ERS_RESULT_NONE) *res = rc; - if (*res == PCI_ERS_RESULT_NEED_RESET) return; if (*res == PCI_ERS_RESULT_DISCONNECT && rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; } -/** eeh_report_reset -- tell this device that the pci slot - * has been reset. +/** + * eeh_report_mmio_enabled - tell drivers that MMIO has been enabled + * + * Report an EEH error to each device driver, collect up and + * merge the device driver responses. Cumulative response + * passed back in "userdata". + */ + +static void eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata) +{ + enum pci_ers_result rc, *res = userdata; + struct pci_driver *driver = dev->driver; + + // dev->error_state = pci_channel_mmio_enabled; + + if (!driver || + !driver->err_handler || + !driver->err_handler->mmio_enabled) + return; + + rc = driver->err_handler->mmio_enabled (dev); + if (*res == PCI_ERS_RESULT_NONE) *res = rc; + if (*res == PCI_ERS_RESULT_DISCONNECT && + rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; +} + +/** + * eeh_report_reset - tell device that slot has been reset */ static void eeh_report_reset(struct pci_dev *dev, void *userdata) { + enum pci_ers_result rc, *res = userdata; struct pci_driver *driver = dev->driver; struct device_node *dn = pci_device_to_OF_node(dev); @@ -124,14 +153,20 @@ static void eeh_report_reset(struct pci_dev *dev, void *userdata) PCI_DN(dn)->eeh_mode &= ~EEH_MODE_IRQ_DISABLED; enable_irq(dev->irq); } - if (!driver->err_handler) - return; - if (!driver->err_handler->slot_reset) + if (!driver->err_handler || + !driver->err_handler->slot_reset) return; - driver->err_handler->slot_reset(dev); + rc = driver->err_handler->slot_reset(dev); + if (*res == PCI_ERS_RESULT_NONE) *res = rc; + if (*res == PCI_ERS_RESULT_DISCONNECT && + rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; } +/** + * eeh_report_resume - tell device to resume normal operations + */ + static void eeh_report_resume(struct pci_dev *dev, void *userdata) { struct pci_driver *driver = dev->driver; @@ -148,6 +183,13 @@ static void eeh_report_resume(struct pci_dev *dev, void *userdata) driver->err_handler->resume(dev); } +/** + * eeh_report_failure - tell device driver that device is dead. + * + * This informs the device driver that the device is permanently + * dead, and that no further recovery attempts will be made on it. + */ + static void eeh_report_failure(struct pci_dev *dev, void *userdata) { struct pci_driver *driver = dev->driver; @@ -190,11 +232,11 @@ static void eeh_report_failure(struct pci_dev *dev, void *userdata) /** * eeh_reset_device() -- perform actual reset of a pci slot - * Args: bus: pointer to the pci bus structure corresponding + * @bus: pointer to the pci bus structure corresponding * to the isolated slot. A non-null value will * cause all devices under the bus to be removed * and then re-added. - * pe_dn: pointer to a "Partionable Endpoint" device node. + * @pe_dn: pointer to a "Partionable Endpoint" device node. * This is the top-level structure on which pci * bus resets can be performed. */ @@ -268,14 +310,14 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) if (!frozen_dn) { - location = (char *) get_property(event->dn, "ibm,loc-code", NULL); + location = get_property(event->dn, "ibm,loc-code", NULL); location = location ? location : "unknown"; printk(KERN_ERR "EEH: Error: Cannot find partition endpoint " "for location=%s pci addr=%s\n", location, pci_name(event->dev)); return NULL; } - location = (char *) get_property(frozen_dn, "ibm,loc-code", NULL); + location = get_property(frozen_dn, "ibm,loc-code", NULL); location = location ? location : "unknown"; /* There are two different styles for coming up with the PE. @@ -347,23 +389,43 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) goto hard_fail; } - /* If any device called out for a reset, then reset the slot */ - if (result == PCI_ERS_RESULT_NEED_RESET) { - rc = eeh_reset_device(frozen_pdn, NULL); - if (rc) - goto hard_fail; - pci_walk_bus(frozen_bus, eeh_report_reset, NULL); + /* If all devices reported they can proceed, then re-enable MMIO */ + if (result == PCI_ERS_RESULT_CAN_RECOVER) { + rc = rtas_pci_enable(frozen_pdn, EEH_THAW_MMIO); + + if (rc) { + result = PCI_ERS_RESULT_NEED_RESET; + } else { + result = PCI_ERS_RESULT_NONE; + pci_walk_bus(frozen_bus, eeh_report_mmio_enabled, &result); + } } - /* If all devices reported they can proceed, the re-enable PIO */ + /* If all devices reported they can proceed, then re-enable DMA */ if (result == PCI_ERS_RESULT_CAN_RECOVER) { - /* XXX Not supported; we brute-force reset the device */ + rc = rtas_pci_enable(frozen_pdn, EEH_THAW_DMA); + + if (rc) + result = PCI_ERS_RESULT_NEED_RESET; + } + + /* If any device has a hard failure, then shut off everything. */ + if (result == PCI_ERS_RESULT_DISCONNECT) + goto hard_fail; + + /* If any device called out for a reset, then reset the slot */ + if (result == PCI_ERS_RESULT_NEED_RESET) { rc = eeh_reset_device(frozen_pdn, NULL); if (rc) goto hard_fail; - pci_walk_bus(frozen_bus, eeh_report_reset, NULL); + result = PCI_ERS_RESULT_NONE; + pci_walk_bus(frozen_bus, eeh_report_reset, &result); } + /* All devices should claim they have recovered by now. */ + if (result != PCI_ERS_RESULT_RECOVERED) + goto hard_fail; + /* Tell all device drivers that they can resume operations */ pci_walk_bus(frozen_bus, eeh_report_resume, NULL); diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c index 45ccc687e57..13707745131 100644 --- a/arch/powerpc/platforms/pseries/eeh_event.c +++ b/arch/powerpc/platforms/pseries/eeh_event.c @@ -124,11 +124,11 @@ int eeh_send_failure_event (struct device_node *dn, { unsigned long flags; struct eeh_event *event; - char *location; + const char *location; if (!mem_init_done) { printk(KERN_ERR "EEH: event during early boot not handled\n"); - location = (char *) get_property(dn, "ibm,loc-code", NULL); + location = get_property(dn, "ibm,loc-code", NULL); printk(KERN_ERR "EEH: device node = %s\n", dn->full_name); printk(KERN_ERR "EEH: PCI location = %s\n", location); return 1; diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c index c01d8f0cbe6..1c7b2baa5f7 100644 --- a/arch/powerpc/platforms/pseries/firmware.c +++ b/arch/powerpc/platforms/pseries/firmware.c @@ -68,7 +68,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = { void __init fw_feature_init(void) { struct device_node *dn; - char *hypertas, *s; + const char *hypertas, *s; int len, i; DBG(" -> fw_feature_init()\n"); diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S index c9ff547f9d2..c00cfed7af2 100644 --- a/arch/powerpc/platforms/pseries/hvCall.S +++ b/arch/powerpc/platforms/pseries/hvCall.S @@ -1,7 +1,6 @@ /* * This file contains the generic code to perform a call to the * pSeries LPAR hypervisor. - * NOTE: this file will go away when we move to inline this work. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -11,217 +10,153 @@ #include <asm/hvcall.h> #include <asm/processor.h> #include <asm/ppc_asm.h> +#include <asm/asm-offsets.h> #define STK_PARM(i) (48 + ((i)-3)*8) - .text - -/* long plpar_hcall(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long *out1, R8 - unsigned long *out2, R9 - unsigned long *out3); R10 +#ifdef CONFIG_HCALL_STATS +/* + * precall must preserve all registers. use unused STK_PARM() + * areas to save snapshots and opcode. */ -_GLOBAL(plpar_hcall) - HMT_MEDIUM - - mfcr r0 - - std r8,STK_PARM(r8)(r1) /* Save out ptrs */ - std r9,STK_PARM(r9)(r1) - std r10,STK_PARM(r10)(r1) - - stw r0,8(r1) - - HVSC /* invoke the hypervisor */ - - lwz r0,8(r1) - - ld r8,STK_PARM(r8)(r1) /* Fetch r4-r6 ret args */ - ld r9,STK_PARM(r9)(r1) - ld r10,STK_PARM(r10)(r1) - std r4,0(r8) - std r5,0(r9) - std r6,0(r10) - - mtcrf 0xff,r0 - blr /* return r3 = status */ +#define HCALL_INST_PRECALL \ + std r3,STK_PARM(r3)(r1); /* save opcode */ \ + mftb r0; /* get timebase and */ \ + std r0,STK_PARM(r5)(r1); /* save for later */ \ +BEGIN_FTR_SECTION; \ + mfspr r0,SPRN_PURR; /* get PURR and */ \ + std r0,STK_PARM(r6)(r1); /* save for later */ \ +END_FTR_SECTION_IFCLR(CPU_FTR_PURR); + +/* + * postcall is performed immediately before function return which + * allows liberal use of volatile registers. + */ +#define HCALL_INST_POSTCALL \ + ld r4,STK_PARM(r3)(r1); /* validate opcode */ \ + cmpldi cr7,r4,MAX_HCALL_OPCODE; \ + bgt- cr7,1f; \ + \ + /* get time and PURR snapshots after hcall */ \ + mftb r7; /* timebase after */ \ +BEGIN_FTR_SECTION; \ + mfspr r8,SPRN_PURR; /* PURR after */ \ + ld r6,STK_PARM(r6)(r1); /* PURR before */ \ + subf r6,r6,r8; /* delta */ \ +END_FTR_SECTION_IFCLR(CPU_FTR_PURR); \ + ld r5,STK_PARM(r5)(r1); /* timebase before */ \ + subf r5,r5,r7; /* time delta */ \ + \ + /* calculate address of stat structure r4 = opcode */ \ + srdi r4,r4,2; /* index into array */ \ + mulli r4,r4,HCALL_STAT_SIZE; \ + LOAD_REG_ADDR(r7, per_cpu__hcall_stats); \ + add r4,r4,r7; \ + ld r7,PACA_DATA_OFFSET(r13); /* per cpu offset */ \ + add r4,r4,r7; \ + \ + /* update stats */ \ + ld r7,HCALL_STAT_CALLS(r4); /* count */ \ + addi r7,r7,1; \ + std r7,HCALL_STAT_CALLS(r4); \ + ld r7,HCALL_STAT_TB(r4); /* timebase */ \ + add r7,r7,r5; \ + std r7,HCALL_STAT_TB(r4); \ +BEGIN_FTR_SECTION; \ + ld r7,HCALL_STAT_PURR(r4); /* PURR */ \ + add r7,r7,r6; \ + std r7,HCALL_STAT_PURR(r4); \ +END_FTR_SECTION_IFCLR(CPU_FTR_PURR); \ +1: +#else +#define HCALL_INST_PRECALL +#define HCALL_INST_POSTCALL +#endif + .text -/* Simple interface with no output values (other than status) */ _GLOBAL(plpar_hcall_norets) HMT_MEDIUM mfcr r0 stw r0,8(r1) - HVSC /* invoke the hypervisor */ - - lwz r0,8(r1) - mtcrf 0xff,r0 - blr /* return r3 = status */ - - -/* long plpar_hcall_8arg_2ret(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long arg5, R8 - unsigned long arg6, R9 - unsigned long arg7, R10 - unsigned long arg8, 112(R1) - unsigned long *out1); 120(R1) - */ -_GLOBAL(plpar_hcall_8arg_2ret) - HMT_MEDIUM - - mfcr r0 - ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ - stw r0,8(r1) + HCALL_INST_PRECALL HVSC /* invoke the hypervisor */ + HCALL_INST_POSTCALL + lwz r0,8(r1) - ld r10,STK_PARM(r12)(r1) /* Fetch r4 ret arg */ - std r4,0(r10) mtcrf 0xff,r0 blr /* return r3 = status */ - -/* long plpar_hcall_4out(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long *out1, R8 - unsigned long *out2, R9 - unsigned long *out3, R10 - unsigned long *out4); 112(R1) - */ -_GLOBAL(plpar_hcall_4out) +_GLOBAL(plpar_hcall) HMT_MEDIUM mfcr r0 stw r0,8(r1) - std r8,STK_PARM(r8)(r1) /* Save out ptrs */ - std r9,STK_PARM(r9)(r1) - std r10,STK_PARM(r10)(r1) - - HVSC /* invoke the hypervisor */ - - lwz r0,8(r1) + HCALL_INST_PRECALL - ld r8,STK_PARM(r8)(r1) /* Fetch r4-r7 ret args */ - ld r9,STK_PARM(r9)(r1) - ld r10,STK_PARM(r10)(r1) - ld r11,STK_PARM(r11)(r1) - std r4,0(r8) - std r5,0(r9) - std r6,0(r10) - std r7,0(r11) + std r4,STK_PARM(r4)(r1) /* Save ret buffer */ - mtcrf 0xff,r0 - blr /* return r3 = status */ - -/* plpar_hcall_7arg_7ret(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long arg5, R8 - unsigned long arg6, R9 - unsigned long arg7, R10 - unsigned long *out1, 112(R1) - unsigned long *out2, 110(R1) - unsigned long *out3, 108(R1) - unsigned long *out4, 106(R1) - unsigned long *out5, 104(R1) - unsigned long *out6, 102(R1) - unsigned long *out7); 100(R1) -*/ -_GLOBAL(plpar_hcall_7arg_7ret) - HMT_MEDIUM - - mfcr r0 - stw r0,8(r1) + mr r4,r5 + mr r5,r6 + mr r6,r7 + mr r7,r8 + mr r8,r9 + mr r9,r10 HVSC /* invoke the hypervisor */ - lwz r0,8(r1) + ld r12,STK_PARM(r4)(r1) + std r4, 0(r12) + std r5, 8(r12) + std r6, 16(r12) + std r7, 24(r12) - ld r11,STK_PARM(r11)(r1) /* Fetch r4 ret arg */ - std r4,0(r11) - ld r11,STK_PARM(r12)(r1) /* Fetch r5 ret arg */ - std r5,0(r11) - ld r11,STK_PARM(r13)(r1) /* Fetch r6 ret arg */ - std r6,0(r11) - ld r11,STK_PARM(r14)(r1) /* Fetch r7 ret arg */ - std r7,0(r11) - ld r11,STK_PARM(r15)(r1) /* Fetch r8 ret arg */ - std r8,0(r11) - ld r11,STK_PARM(r16)(r1) /* Fetch r9 ret arg */ - std r9,0(r11) - ld r11,STK_PARM(r17)(r1) /* Fetch r10 ret arg */ - std r10,0(r11) + HCALL_INST_POSTCALL + lwz r0,8(r1) mtcrf 0xff,r0 blr /* return r3 = status */ -/* plpar_hcall_9arg_9ret(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long arg5, R8 - unsigned long arg6, R9 - unsigned long arg7, R10 - unsigned long arg8, 112(R1) - unsigned long arg9, 110(R1) - unsigned long *out1, 108(R1) - unsigned long *out2, 106(R1) - unsigned long *out3, 104(R1) - unsigned long *out4, 102(R1) - unsigned long *out5, 100(R1) - unsigned long *out6, 98(R1) - unsigned long *out7); 96(R1) - unsigned long *out8, 94(R1) - unsigned long *out9, 92(R1) -*/ -_GLOBAL(plpar_hcall_9arg_9ret) +_GLOBAL(plpar_hcall9) HMT_MEDIUM mfcr r0 stw r0,8(r1) - ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ - ld r12,STK_PARM(r12)(r1) /* put arg9 in R12 */ + HCALL_INST_PRECALL + + std r4,STK_PARM(r4)(r1) /* Save ret buffer */ + + mr r4,r5 + mr r5,r6 + mr r6,r7 + mr r7,r8 + mr r8,r9 + mr r9,r10 + ld r10,STK_PARM(r11)(r1) /* put arg7 in R10 */ + ld r11,STK_PARM(r12)(r1) /* put arg8 in R11 */ + ld r12,STK_PARM(r13)(r1) /* put arg9 in R12 */ HVSC /* invoke the hypervisor */ - ld r0,STK_PARM(r13)(r1) /* Fetch r4 ret arg */ - stdx r4,r0,r0 - ld r0,STK_PARM(r14)(r1) /* Fetch r5 ret arg */ - stdx r5,r0,r0 - ld r0,STK_PARM(r15)(r1) /* Fetch r6 ret arg */ - stdx r6,r0,r0 - ld r0,STK_PARM(r16)(r1) /* Fetch r7 ret arg */ - stdx r7,r0,r0 - ld r0,STK_PARM(r17)(r1) /* Fetch r8 ret arg */ - stdx r8,r0,r0 - ld r0,STK_PARM(r18)(r1) /* Fetch r9 ret arg */ - stdx r9,r0,r0 - ld r0,STK_PARM(r19)(r1) /* Fetch r10 ret arg */ - stdx r10,r0,r0 - ld r0,STK_PARM(r20)(r1) /* Fetch r11 ret arg */ - stdx r11,r0,r0 - ld r0,STK_PARM(r21)(r1) /* Fetch r12 ret arg */ - stdx r12,r0,r0 + ld r12,STK_PARM(r4)(r1) + std r4, 0(r12) + std r5, 8(r12) + std r6, 16(r12) + std r7, 24(r12) + std r8, 32(r12) + std r9, 40(r12) + std r10,48(r12) + std r11,56(r12) + std r12,64(r12) + + HCALL_INST_POSTCALL lwz r0,8(r1) mtcrf 0xff,r0 diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c new file mode 100644 index 00000000000..641e6511cf0 --- /dev/null +++ b/arch/powerpc/platforms/pseries/hvCall_inst.c @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2006 Mike Kravetz IBM Corporation + * + * Hypervisor Call Instrumentation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/percpu.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <linux/cpumask.h> +#include <asm/hvcall.h> +#include <asm/firmware.h> +#include <asm/cputable.h> + +DEFINE_PER_CPU(struct hcall_stats[HCALL_STAT_ARRAY_SIZE], hcall_stats); + +/* + * Routines for displaying the statistics in debugfs + */ +static void *hc_start(struct seq_file *m, loff_t *pos) +{ + if ((int)*pos < HCALL_STAT_ARRAY_SIZE) + return (void *)(unsigned long)(*pos + 1); + + return NULL; +} + +static void *hc_next(struct seq_file *m, void *p, loff_t * pos) +{ + ++*pos; + + return hc_start(m, pos); +} + +static void hc_stop(struct seq_file *m, void *p) +{ +} + +static int hc_show(struct seq_file *m, void *p) +{ + unsigned long h_num = (unsigned long)p; + struct hcall_stats *hs = (struct hcall_stats *)m->private; + + if (hs[h_num].num_calls) { + if (!cpu_has_feature(CPU_FTR_PURR)) + seq_printf(m, "%lu %lu %lu %lu\n", h_num<<2, + hs[h_num].num_calls, + hs[h_num].tb_total, + hs[h_num].purr_total); + else + seq_printf(m, "%lu %lu %lu\n", h_num<<2, + hs[h_num].num_calls, + hs[h_num].tb_total); + } + + return 0; +} + +static struct seq_operations hcall_inst_seq_ops = { + .start = hc_start, + .next = hc_next, + .stop = hc_stop, + .show = hc_show +}; + +static int hcall_inst_seq_open(struct inode *inode, struct file *file) +{ + int rc; + struct seq_file *seq; + + rc = seq_open(file, &hcall_inst_seq_ops); + seq = file->private_data; + seq->private = file->f_dentry->d_inode->u.generic_ip; + + return rc; +} + +static struct file_operations hcall_inst_seq_fops = { + .open = hcall_inst_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +#define HCALL_ROOT_DIR "hcall_inst" +#define CPU_NAME_BUF_SIZE 32 + +static int __init hcall_inst_init(void) +{ + struct dentry *hcall_root; + struct dentry *hcall_file; + char cpu_name_buf[CPU_NAME_BUF_SIZE]; + int cpu; + + if (!firmware_has_feature(FW_FEATURE_LPAR)) + return 0; + + hcall_root = debugfs_create_dir(HCALL_ROOT_DIR, NULL); + if (!hcall_root) + return -ENOMEM; + + for_each_possible_cpu(cpu) { + snprintf(cpu_name_buf, CPU_NAME_BUF_SIZE, "cpu%d", cpu); + hcall_file = debugfs_create_file(cpu_name_buf, S_IRUGO, + hcall_root, + per_cpu(hcall_stats, cpu), + &hcall_inst_seq_fops); + if (!hcall_file) + return -ENOMEM; + } + + return 0; +} +__initcall(hcall_inst_init); diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c index a72a987f1d4..3f6a89b0981 100644 --- a/arch/powerpc/platforms/pseries/hvconsole.c +++ b/arch/powerpc/platforms/pseries/hvconsole.c @@ -27,6 +27,7 @@ #include <linux/module.h> #include <asm/hvcall.h> #include <asm/hvconsole.h> +#include "plpar_wrappers.h" /** * hvc_get_chars - retrieve characters from firmware for denoted vterm adatper @@ -40,9 +41,9 @@ int hvc_get_chars(uint32_t vtermno, char *buf, int count) { unsigned long got; - if (plpar_hcall(H_GET_TERM_CHAR, vtermno, 0, 0, 0, &got, - (unsigned long *)buf, (unsigned long *)buf+1) == H_SUCCESS) + if (plpar_get_term_char(vtermno, &got, buf) == H_SUCCESS) return got; + return 0; } diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index d67af2c6575..bbf2e34dc35 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -267,13 +267,12 @@ static void iommu_table_setparms(struct pci_controller *phb, struct iommu_table *tbl) { struct device_node *node; - unsigned long *basep; - unsigned int *sizep; + const unsigned long *basep, *sizep; node = (struct device_node *)phb->arch_data; - basep = (unsigned long *)get_property(node, "linux,tce-base", NULL); - sizep = (unsigned int *)get_property(node, "linux,tce-size", NULL); + basep = get_property(node, "linux,tce-base", NULL); + sizep = get_property(node, "linux,tce-size", NULL); if (basep == NULL || sizep == NULL) { printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has " "missing tce entries !\n", dn->full_name); @@ -315,7 +314,7 @@ static void iommu_table_setparms(struct pci_controller *phb, static void iommu_table_setparms_lpar(struct pci_controller *phb, struct device_node *dn, struct iommu_table *tbl, - unsigned char *dma_window) + const void *dma_window) { unsigned long offset, size; @@ -415,7 +414,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus) struct iommu_table *tbl; struct device_node *dn, *pdn; struct pci_dn *ppci; - unsigned char *dma_window = NULL; + const void *dma_window = NULL; DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self); @@ -519,7 +518,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev) { struct device_node *pdn, *dn; struct iommu_table *tbl; - unsigned char *dma_window = NULL; + const void *dma_window = NULL; struct pci_dn *pci; DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev)); diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 3aeb4069904..1820a0b0a8c 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -48,13 +48,11 @@ #define DBG_LOW(fmt...) do { } while(0) #endif -/* in pSeries_hvCall.S */ +/* in hvCall.S */ EXPORT_SYMBOL(plpar_hcall); -EXPORT_SYMBOL(plpar_hcall_4out); +EXPORT_SYMBOL(plpar_hcall9); EXPORT_SYMBOL(plpar_hcall_norets); -EXPORT_SYMBOL(plpar_hcall_8arg_2ret); -EXPORT_SYMBOL(plpar_hcall_7arg_7ret); -EXPORT_SYMBOL(plpar_hcall_9arg_9ret); + extern void pSeries_find_serial_port(void); @@ -204,20 +202,20 @@ void __init udbg_init_debug_lpar(void) void __init find_udbg_vterm(void) { struct device_node *stdout_node; - u32 *termno; - char *name; + const u32 *termno; + const char *name; int add_console; /* find the boot console from /chosen/stdout */ if (!of_chosen) return; - name = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + name = get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) return; stdout_node = of_find_node_by_path(name); if (!stdout_node) return; - name = (char *)get_property(stdout_node, "name", NULL); + name = get_property(stdout_node, "name", NULL); if (!name) { printk(KERN_WARNING "stdout node missing 'name' property!\n"); goto out; @@ -228,7 +226,7 @@ void __init find_udbg_vterm(void) /* Check if it's a virtual terminal */ if (strncmp(name, "vty", 3) != 0) goto out; - termno = (u32 *)get_property(stdout_node, "reg", NULL); + termno = get_property(stdout_node, "reg", NULL); if (termno == NULL) goto out; vtermno = termno[0]; @@ -254,18 +252,34 @@ out: void vpa_init(int cpu) { int hwcpu = get_hard_smp_processor_id(cpu); - unsigned long vpa = __pa(&lppaca[cpu]); + unsigned long addr; long ret; if (cpu_has_feature(CPU_FTR_ALTIVEC)) lppaca[cpu].vmxregs_in_use = 1; - ret = register_vpa(hwcpu, vpa); + addr = __pa(&lppaca[cpu]); + ret = register_vpa(hwcpu, addr); - if (ret) + if (ret) { printk(KERN_ERR "WARNING: vpa_init: VPA registration for " "cpu %d (hw %d) of area %lx returns %ld\n", - cpu, hwcpu, vpa, ret); + cpu, hwcpu, addr, ret); + return; + } + /* + * PAPR says this feature is SLB-Buffer but firmware never + * reports that. All SPLPAR support SLB shadow buffer. + */ + addr = __pa(&slb_shadow[cpu]); + if (firmware_has_feature(FW_FEATURE_SPLPAR)) { + ret = register_slb_shadow(hwcpu, addr); + if (ret) + printk(KERN_ERR + "WARNING: vpa_init: SLB shadow buffer " + "registration for cpu %d (hw %d) of area %lx " + "returns %ld\n", cpu, hwcpu, addr, ret); + } } long pSeries_lpar_hpte_insert(unsigned long hpte_group, @@ -277,7 +291,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, unsigned long flags; unsigned long slot; unsigned long hpte_v, hpte_r; - unsigned long dummy0, dummy1; if (!(vflags & HPTE_V_BOLTED)) DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, " @@ -302,8 +315,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE)) hpte_r &= ~_PAGE_COHERENT; - lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v, - hpte_r, &slot, &dummy0, &dummy1); + lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot); if (unlikely(lpar_rc == H_PTEG_FULL)) { if (!(vflags & HPTE_V_BOLTED)) DBG_LOW(" full\n"); diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c index 18abfb1f4e2..64163cecdf9 100644 --- a/arch/powerpc/platforms/pseries/nvram.c +++ b/arch/powerpc/platforms/pseries/nvram.c @@ -123,13 +123,14 @@ static ssize_t pSeries_nvram_get_size(void) int __init pSeries_nvram_init(void) { struct device_node *nvram; - unsigned int *nbytes_p, proplen; + const unsigned int *nbytes_p; + unsigned int proplen; nvram = of_find_node_by_type(NULL, "nvram"); if (nvram == NULL) return -ENODEV; - nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen); + nbytes_p = get_property(nvram, "#bytes", &proplen); if (nbytes_p == NULL || proplen != sizeof(unsigned int)) return -EIO; diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index e97e67f5e07..410a6bcc4ca 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -60,7 +60,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device); static void __devinit check_s7a(void) { struct device_node *root; - char *model; + const char *model; s7a_workaround = 0; root = of_find_node_by_path("/"); diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h index 3bd1b3e0600..3eb7b294d92 100644 --- a/arch/powerpc/platforms/pseries/plpar_wrappers.h +++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h @@ -5,20 +5,17 @@ static inline long poll_pending(void) { - unsigned long dummy; - return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, &dummy, &dummy, &dummy); + return plpar_hcall_norets(H_POLL_PENDING); } static inline long prod_processor(void) { - plpar_hcall_norets(H_PROD); - return 0; + return plpar_hcall_norets(H_PROD); } static inline long cede_processor(void) { - plpar_hcall_norets(H_CEDE); - return 0; + return plpar_hcall_norets(H_CEDE); } static inline long vpa_call(unsigned long flags, unsigned long cpu, @@ -40,23 +37,59 @@ static inline long register_vpa(unsigned long cpu, unsigned long vpa) return vpa_call(0x1, cpu, vpa); } +static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa) +{ + return vpa_call(0x7, cpu, vpa); +} + +static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa) +{ + return vpa_call(0x3, cpu, vpa); +} + extern void vpa_init(int cpu); +static inline long plpar_pte_enter(unsigned long flags, + unsigned long hpte_group, unsigned long hpte_v, + unsigned long hpte_r, unsigned long *slot) +{ + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r); + + *slot = retbuf[0]; + + return rc; +} + static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex, unsigned long avpn, unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) { - unsigned long dummy; - return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, old_pteh_ret, - old_ptel_ret, &dummy); + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn); + + *old_pteh_ret = retbuf[0]; + *old_ptel_ret = retbuf[1]; + + return rc; } static inline long plpar_pte_read(unsigned long flags, unsigned long ptex, unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) { - unsigned long dummy; - return plpar_hcall(H_READ, flags, ptex, 0, 0, old_pteh_ret, - old_ptel_ret, &dummy); + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_READ, retbuf, flags, ptex); + + *old_pteh_ret = retbuf[0]; + *old_ptel_ret = retbuf[1]; + + return rc; } static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex, @@ -68,9 +101,14 @@ static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex, static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba, unsigned long *tce_ret) { - unsigned long dummy; - return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, tce_ret, &dummy, - &dummy); + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba); + + *tce_ret = retbuf[0]; + + return rc; } static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba, @@ -94,9 +132,17 @@ static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba, static inline long plpar_get_term_char(unsigned long termno, unsigned long *len_ret, char *buf_ret) { + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; unsigned long *lbuf = (unsigned long *)buf_ret; /* TODO: alignment? */ - return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, len_ret, - lbuf + 0, lbuf + 1); + + rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno); + + *len_ret = retbuf[0]; + lbuf[0] = retbuf[1]; + lbuf[1] = retbuf[2]; + + return rc; } static inline long plpar_put_term_char(unsigned long termno, unsigned long len, @@ -107,4 +153,31 @@ static inline long plpar_put_term_char(unsigned long termno, unsigned long len, lbuf[1]); } +static inline long plpar_eoi(unsigned long xirr) +{ + return plpar_hcall_norets(H_EOI, xirr); +} + +static inline long plpar_cppr(unsigned long cppr) +{ + return plpar_hcall_norets(H_CPPR, cppr); +} + +static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr) +{ + return plpar_hcall_norets(H_IPI, servernum, mfrr); +} + +static inline long plpar_xirr(unsigned long *xirr_ret) +{ + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_XIRR, retbuf); + + *xirr_ret = retbuf[0]; + + return rc; +} + #endif /* _PSERIES_PLPAR_WRAPPERS_H */ diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index c7ffde1a614..903115d67fd 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -79,7 +79,7 @@ static void request_ras_irqs(struct device_node *np, { int i, index, count = 0; struct of_irq oirq; - u32 *opicprop; + const u32 *opicprop; unsigned int opicplen; unsigned int virqs[16]; @@ -87,7 +87,7 @@ static void request_ras_irqs(struct device_node *np, * map those interrupts using the default interrupt host and default * trigger */ - opicprop = (u32 *)get_property(np, "open-pic-interrupt", &opicplen); + opicprop = get_property(np, "open-pic-interrupt", &opicplen); if (opicprop) { opicplen /= sizeof(u32); for (i = 0; i < opicplen; i++) { diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c index 2e4e04042d8..8ca2612221d 100644 --- a/arch/powerpc/platforms/pseries/rtasd.c +++ b/arch/powerpc/platforms/pseries/rtasd.c @@ -359,11 +359,11 @@ static int enable_surveillance(int timeout) static int get_eventscan_parms(void) { struct device_node *node; - int *ip; + const int *ip; node = of_find_node_by_path("/rtas"); - ip = (int *)get_property(node, "rtas-event-scan-rate", NULL); + ip = get_property(node, "rtas-event-scan-rate", NULL); if (ip == NULL) { printk(KERN_ERR "rtasd: no rtas-event-scan-rate\n"); of_node_put(node); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 31867a701fc..a6398fbe530 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -133,9 +133,9 @@ void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc, static void __init pseries_mpic_init_IRQ(void) { struct device_node *np, *old, *cascade = NULL; - unsigned int *addrp; + const unsigned int *addrp; unsigned long intack = 0; - unsigned int *opprop; + const unsigned int *opprop; unsigned long openpic_addr = 0; unsigned int cascade_irq; int naddr, n, i, opplen; @@ -143,7 +143,7 @@ static void __init pseries_mpic_init_IRQ(void) np = of_find_node_by_path("/"); naddr = prom_n_addr_cells(np); - opprop = (unsigned int *) get_property(np, "platform-open-pic", &opplen); + opprop = get_property(np, "platform-open-pic", &opplen); if (opprop != 0) { openpic_addr = of_read_number(opprop, naddr); printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); @@ -192,7 +192,7 @@ static void __init pseries_mpic_init_IRQ(void) break; if (strcmp(np->name, "pci") != 0) continue; - addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", + addrp = get_property(np, "8259-interrupt-acknowledge", NULL); if (addrp == NULL) continue; @@ -223,23 +223,37 @@ static void pseries_lpar_enable_pmcs(void) } #ifdef CONFIG_KEXEC -static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary) -{ - mpic_teardown_this_cpu(secondary); -} - -static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary) +static void pseries_kexec_cpu_down(int crash_shutdown, int secondary) { /* Don't risk a hypervisor call if we're crashing */ if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) { - unsigned long vpa = __pa(get_lppaca()); + unsigned long addr; - if (unregister_vpa(hard_smp_processor_id(), vpa)) { + addr = __pa(get_slb_shadow()); + if (unregister_slb_shadow(hard_smp_processor_id(), addr)) + printk("SLB shadow buffer deregistration of " + "cpu %u (hw_cpu_id %d) failed\n", + smp_processor_id(), + hard_smp_processor_id()); + + addr = __pa(get_lppaca()); + if (unregister_vpa(hard_smp_processor_id(), addr)) { printk("VPA deregistration of cpu %u (hw_cpu_id %d) " "failed\n", smp_processor_id(), hard_smp_processor_id()); } } +} + +static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary) +{ + pseries_kexec_cpu_down(crash_shutdown, secondary); + mpic_teardown_this_cpu(secondary); +} + +static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary) +{ + pseries_kexec_cpu_down(crash_shutdown, secondary); xics_teardown_cpu(secondary); } #endif /* CONFIG_KEXEC */ @@ -247,11 +261,11 @@ static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary) static void __init pseries_discover_pic(void) { struct device_node *np; - char *typep; + const char *typep; for (np = NULL; (np = of_find_node_by_name(np, "interrupt-controller"));) { - typep = (char *)get_property(np, "compatible", NULL); + typep = get_property(np, "compatible", NULL); if (strstr(typep, "open-pic")) { pSeries_mpic_node = of_node_get(np); ppc_md.init_IRQ = pseries_mpic_init_IRQ; diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index ac61098ff40..c6624b8a0e7 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -62,7 +62,7 @@ */ static cpumask_t of_spin_map; -extern void pSeries_secondary_smp_init(unsigned long); +extern void generic_secondary_smp_init(unsigned long); #ifdef CONFIG_HOTPLUG_CPU @@ -145,9 +145,9 @@ static int pSeries_add_processor(struct device_node *np) unsigned int cpu; cpumask_t candidate_map, tmp = CPU_MASK_NONE; int err = -ENOSPC, len, nthreads, i; - u32 *intserv; + const u32 *intserv; - intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len); + intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); if (!intserv) return 0; @@ -205,9 +205,9 @@ static void pSeries_remove_processor(struct device_node *np) { unsigned int cpu; int len, nthreads, i; - u32 *intserv; + const u32 *intserv; - intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len); + intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); if (!intserv) return; @@ -270,7 +270,7 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu) { int status; unsigned long start_here = __pa((u32)*((unsigned long *) - pSeries_secondary_smp_init)); + generic_secondary_smp_init)); unsigned int pcpu; int start_cpu; diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index e9886302572..253972e5479 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -34,6 +34,7 @@ #include <asm/i8259.h> #include "xics.h" +#include "plpar_wrappers.h" #define XICS_IPI 2 #define XICS_IRQ_SPURIOUS 0 @@ -110,27 +111,6 @@ static inline void direct_qirr_info(int n_cpu, u8 value) /* LPAR low level accessors */ -static inline long plpar_eoi(unsigned long xirr) -{ - return plpar_hcall_norets(H_EOI, xirr); -} - -static inline long plpar_cppr(unsigned long cppr) -{ - return plpar_hcall_norets(H_CPPR, cppr); -} - -static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr) -{ - return plpar_hcall_norets(H_IPI, servernum, mfrr); -} - -static inline long plpar_xirr(unsigned long *xirr_ret) -{ - unsigned long dummy; - return plpar_hcall(H_XIRR, 0, 0, 0, 0, xirr_ret, &dummy, &dummy); -} - static inline unsigned int lpar_xirr_info_get(int n_cpu) { unsigned long lpar_rc; @@ -590,14 +570,14 @@ static void __init xics_init_one_node(struct device_node *np, unsigned int *indx) { unsigned int ilen; - u32 *ireg; + const u32 *ireg; /* This code does the theorically broken assumption that the interrupt * server numbers are the same as the hard CPU numbers. * This happens to be the case so far but we are playing with fire... * should be fixed one of these days. -BenH. */ - ireg = (u32 *)get_property(np, "ibm,interrupt-server-ranges", NULL); + ireg = get_property(np, "ibm,interrupt-server-ranges", NULL); /* Do that ever happen ? we'll know soon enough... but even good'old * f80 does have that property .. @@ -609,7 +589,7 @@ static void __init xics_init_one_node(struct device_node *np, */ *indx = *ireg; } - ireg = (u32 *)get_property(np, "reg", &ilen); + ireg = get_property(np, "reg", &ilen); if (!ireg) panic("xics_init_IRQ: can't find interrupt reg property"); @@ -635,7 +615,7 @@ static void __init xics_setup_8259_cascade(void) { struct device_node *np, *old, *found = NULL; int cascade, naddr; - u32 *addrp; + const u32 *addrp; unsigned long intack = 0; for_each_node_by_type(np, "interrupt-controller") @@ -661,7 +641,7 @@ static void __init xics_setup_8259_cascade(void) break; if (strcmp(np->name, "pci") != 0) continue; - addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", NULL); + addrp = get_property(np, "8259-interrupt-acknowledge", NULL); if (addrp == NULL) continue; naddr = prom_n_addr_cells(np); @@ -680,7 +660,8 @@ void __init xics_init_IRQ(void) { int i; struct device_node *np; - u32 *ireg, ilen, indx = 0; + u32 ilen, indx = 0; + const u32 *ireg; int found = 0; ppc64_boot_msg(0x20, "XICS Init"); @@ -705,18 +686,17 @@ void __init xics_init_IRQ(void) for (np = of_find_node_by_type(NULL, "cpu"); np; np = of_find_node_by_type(np, "cpu")) { - ireg = (u32 *)get_property(np, "reg", &ilen); + ireg = get_property(np, "reg", &ilen); if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) { - ireg = (u32 *)get_property(np, - "ibm,ppc-interrupt-gserver#s", - &ilen); + ireg = get_property(np, + "ibm,ppc-interrupt-gserver#s", &ilen); i = ilen / sizeof(int); if (ireg && i > 0) { default_server = ireg[0]; /* take last element */ default_distrib_server = ireg[i-1]; } - ireg = (u32 *)get_property(np, + ireg = get_property(np, "ibm,interrupt-server#-size", NULL); if (ireg) interrupt_server_size = *ireg; diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index ef10bcf2d94..92ba378b799 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -41,7 +41,7 @@ phys_addr_t get_immrbase(void) soc = of_find_node_by_type(NULL, "soc"); if (soc) { unsigned int size; - void *prop = get_property(soc, "reg", &size); + const void *prop = get_property(soc, "reg", &size); immrbase = of_translate_address(soc, prop); of_node_put(soc); }; @@ -85,7 +85,7 @@ static int __init gfar_mdio_of_init(void) mdio_data.irq[k] = -1; while ((child = of_get_next_child(np, child)) != NULL) { - u32 *id = get_property(child, "reg", NULL); + const u32 *id = get_property(child, "reg", NULL); mdio_data.irq[*id] = irq_of_parse_and_map(child, 0); } @@ -124,10 +124,10 @@ static int __init gfar_of_init(void) struct resource r[4]; struct device_node *phy, *mdio; struct gianfar_platform_data gfar_data; - unsigned int *id; - char *model; - void *mac_addr; - phandle *ph; + const unsigned int *id; + const char *model; + const void *mac_addr; + const phandle *ph; int n_res = 1; memset(r, 0, sizeof(r)); @@ -193,7 +193,7 @@ static int __init gfar_of_init(void) FSL_GIANFAR_DEV_HAS_VLAN | FSL_GIANFAR_DEV_HAS_EXTENDED_HASH; - ph = (phandle *) get_property(np, "phy-handle", NULL); + ph = get_property(np, "phy-handle", NULL); phy = of_find_node_by_phandle(*ph); if (phy == NULL) { @@ -203,7 +203,7 @@ static int __init gfar_of_init(void) mdio = of_get_parent(phy); - id = (u32 *) get_property(phy, "reg", NULL); + id = get_property(phy, "reg", NULL); ret = of_address_to_resource(mdio, 0, &res); if (ret) { of_node_put(phy); @@ -247,7 +247,7 @@ static int __init fsl_i2c_of_init(void) i++) { struct resource r[2]; struct fsl_i2c_platform_data i2c_data; - unsigned char *flags = NULL; + const unsigned char *flags = NULL; memset(&r, 0, sizeof(r)); memset(&i2c_data, 0, sizeof(i2c_data)); @@ -298,7 +298,7 @@ static int __init mpc83xx_wdt_init(void) struct resource r; struct device_node *soc, *np; struct platform_device *dev; - unsigned int *freq; + const unsigned int *freq; int ret; np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt"); @@ -315,7 +315,7 @@ static int __init mpc83xx_wdt_init(void) goto nosoc; } - freq = (unsigned int *)get_property(soc, "bus-frequency", NULL); + freq = get_property(soc, "bus-frequency", NULL); if (!freq) { ret = -ENODEV; goto err; @@ -355,7 +355,7 @@ nodev: arch_initcall(mpc83xx_wdt_init); #endif -static enum fsl_usb2_phy_modes determine_usb_phy(char * phy_type) +static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type) { if (!phy_type) return FSL_USB2_PHY_NONE; @@ -383,7 +383,7 @@ static int __init fsl_usb_of_init(void) i++) { struct resource r[2]; struct fsl_usb2_platform_data usb_data; - unsigned char *prop = NULL; + const unsigned char *prop = NULL; memset(&r, 0, sizeof(r)); memset(&usb_data, 0, sizeof(usb_data)); @@ -431,7 +431,7 @@ static int __init fsl_usb_of_init(void) i++) { struct resource r[2]; struct fsl_usb2_platform_data usb_data; - unsigned char *prop = NULL; + const unsigned char *prop = NULL; memset(&r, 0, sizeof(r)); memset(&usb_data, 0, sizeof(usb_data)); diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h index c433d3f39ed..5a3dd480d2f 100644 --- a/arch/powerpc/sysdev/fsl_soc.h +++ b/arch/powerpc/sysdev/fsl_soc.h @@ -2,6 +2,8 @@ #define __PPC_FSL_SOC_H #ifdef __KERNEL__ +#include <asm/mmu.h> + extern phys_addr_t get_immrbase(void); #endif diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c index 9855820b954..26a6a3becd6 100644 --- a/arch/powerpc/sysdev/i8259.c +++ b/arch/powerpc/sysdev/i8259.c @@ -224,7 +224,7 @@ static struct irq_host_ops i8259_host_ops = { .xlate = i8259_host_xlate, }; -/**** +/** * i8259_init - Initialize the legacy controller * @node: device node of the legacy PIC (can be NULL, but then, it will match * all interrupts, so beware) diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index 70e707785d4..0251b7c68d0 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -210,7 +210,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 4, }, [64] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, @@ -218,7 +218,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 0, }, [65] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, @@ -226,7 +226,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 1, }, [66] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, @@ -234,7 +234,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 2, }, [67] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, @@ -242,7 +242,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 3, }, [68] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, @@ -250,7 +250,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 0, }, [69] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, @@ -258,7 +258,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 1, }, [70] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, @@ -266,7 +266,7 @@ static struct ipic_info ipic_info[] = { .prio_mask = 2, }, [71] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, @@ -274,91 +274,91 @@ static struct ipic_info ipic_info[] = { .prio_mask = 3, }, [72] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 8, }, [73] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 9, }, [74] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 10, }, [75] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 11, }, [76] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 12, }, [77] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 13, }, [78] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 14, }, [79] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 15, }, [80] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 16, }, [84] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 20, }, [85] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 21, }, [90] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 26, }, [91] = { - .pend = IPIC_SIPNR_H, + .pend = IPIC_SIPNR_L, .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, diff --git a/arch/powerpc/sysdev/mmio_nvram.c b/arch/powerpc/sysdev/mmio_nvram.c index 615350d46b5..ff23f5a4d4b 100644 --- a/arch/powerpc/sysdev/mmio_nvram.c +++ b/arch/powerpc/sysdev/mmio_nvram.c @@ -80,7 +80,7 @@ static ssize_t mmio_nvram_get_size(void) int __init mmio_nvram_init(void) { struct device_node *nvram_node; - unsigned long *buffer; + const unsigned long *buffer; int proplen; unsigned long nvram_addr; int ret; @@ -91,7 +91,7 @@ int __init mmio_nvram_init(void) goto out; ret = -EIO; - buffer = (unsigned long *)get_property(nvram_node, "reg", &proplen); + buffer = get_property(nvram_node, "reg", &proplen); if (proplen != 2*sizeof(unsigned long)) goto out; diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c index 2ab06ed3ae7..c28f69bef8e 100644 --- a/arch/powerpc/sysdev/tsi108_pci.c +++ b/arch/powerpc/sysdev/tsi108_pci.c @@ -194,7 +194,7 @@ int __init tsi108_setup_pci(struct device_node *dev) int len; struct pci_controller *hose; struct resource rsrc; - int *bus_range; + const int *bus_range; int primary = 0, has_address = 0; /* PCI Config mapping */ @@ -207,7 +207,7 @@ int __init tsi108_setup_pci(struct device_node *dev) has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); /* Get bus range if any */ - bus_range = (int *)get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, assume" " bus 0\n", dev->full_name); diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 179b10ced8c..8adad1444a5 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -137,10 +137,14 @@ static void bootcmds(void); static void proccall(void); void dump_segments(void); static void symbol_lookup(void); +static void xmon_show_stack(unsigned long sp, unsigned long lr, + unsigned long pc); static void xmon_print_symbol(unsigned long address, const char *mid, const char *after); static const char *getvecname(unsigned long vec); +int xmon_no_auto_backtrace; + extern int print_insn_powerpc(unsigned long, unsigned long, int); extern void xmon_enter(void); @@ -736,6 +740,12 @@ cmds(struct pt_regs *excp) last_cmd = NULL; xmon_regs = excp; + + if (!xmon_no_auto_backtrace) { + xmon_no_auto_backtrace = 1; + xmon_show_stack(excp->gpr[1], excp->link, excp->nip); + } + for(;;) { #ifdef CONFIG_SMP printf("%x:", smp_processor_id()); |