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-rw-r--r--arch/parisc/kernel/cache.c28
-rw-r--r--arch/parisc/kernel/entry.S6
-rw-r--r--arch/parisc/kernel/firmware.c46
-rw-r--r--arch/parisc/kernel/module.c63
-rw-r--r--arch/parisc/kernel/pdc_chassis.c109
-rw-r--r--arch/parisc/kernel/ptrace.c8
-rw-r--r--arch/parisc/kernel/real2.S9
-rw-r--r--arch/parisc/kernel/setup.c5
-rw-r--r--arch/parisc/kernel/signal.c20
-rw-r--r--arch/parisc/kernel/syscall.S14
-rw-r--r--arch/parisc/kernel/time.c18
-rw-r--r--arch/parisc/kernel/traps.c84
-rw-r--r--arch/parisc/kernel/unaligned.c18
13 files changed, 281 insertions, 147 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c057ad7605b..bc7c4a4e26a 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -97,15 +97,17 @@ update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
void
show_cache_info(struct seq_file *m)
{
+ char buf[32];
+
seq_printf(m, "I-cache\t\t: %ld KB\n",
cache_info.ic_size/1024 );
- seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %d-way associative)\n",
+ if (cache_info.dc_loop == 1)
+ snprintf(buf, 32, "%lu-way associative", cache_info.dc_loop);
+ seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %s)\n",
cache_info.dc_size/1024,
(cache_info.dc_conf.cc_wt ? "WT":"WB"),
(cache_info.dc_conf.cc_sh ? ", shared I/D":""),
- (cache_info.dc_conf.cc_assoc)
- );
-
+ ((cache_info.dc_loop == 1) ? "direct mapped" : buf));
seq_printf(m, "ITLB entries\t: %ld\n" "DTLB entries\t: %ld%s\n",
cache_info.it_size,
cache_info.dt_size,
@@ -158,11 +160,11 @@ parisc_cache_init(void)
cache_info.dc_conf.cc_block,
cache_info.dc_conf.cc_line,
cache_info.dc_conf.cc_shift);
- printk(" wt %d sh %d cst %d assoc %d\n",
+ printk(" wt %d sh %d cst %d hv %d\n",
cache_info.dc_conf.cc_wt,
cache_info.dc_conf.cc_sh,
cache_info.dc_conf.cc_cst,
- cache_info.dc_conf.cc_assoc);
+ cache_info.dc_conf.cc_hv);
printk("IC base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx\n",
cache_info.ic_base,
@@ -176,11 +178,11 @@ parisc_cache_init(void)
cache_info.ic_conf.cc_block,
cache_info.ic_conf.cc_line,
cache_info.ic_conf.cc_shift);
- printk(" wt %d sh %d cst %d assoc %d\n",
+ printk(" wt %d sh %d cst %d hv %d\n",
cache_info.ic_conf.cc_wt,
cache_info.ic_conf.cc_sh,
cache_info.ic_conf.cc_cst,
- cache_info.ic_conf.cc_assoc);
+ cache_info.ic_conf.cc_hv);
printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
cache_info.dt_conf.tc_sh,
@@ -234,7 +236,8 @@ parisc_cache_init(void)
void disable_sr_hashing(void)
{
- int srhash_type;
+ int srhash_type, retval;
+ unsigned long space_bits;
switch (boot_cpu_data.cpu_type) {
case pcx: /* We shouldn't get this far. setup.c should prevent it. */
@@ -260,6 +263,13 @@ void disable_sr_hashing(void)
}
disable_sr_hashing_asm(srhash_type);
+
+ retval = pdc_spaceid_bits(&space_bits);
+ /* If this procedure isn't implemented, don't panic. */
+ if (retval < 0 && retval != PDC_BAD_OPTION)
+ panic("pdc_spaceid_bits call failed.\n");
+ if (space_bits != 0)
+ panic("SpaceID hashing is still on!\n");
}
void flush_dcache_page(struct page *page)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index d9e53cf0372..630730c32a5 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1638,7 +1638,7 @@ dbit_trap_20w:
load32 PA(pa_dbit_lock),t0
dbit_spin_20w:
- ldcw 0(t0),t1
+ LDCW 0(t0),t1
cmpib,= 0,t1,dbit_spin_20w
nop
@@ -1674,7 +1674,7 @@ dbit_trap_11:
load32 PA(pa_dbit_lock),t0
dbit_spin_11:
- ldcw 0(t0),t1
+ LDCW 0(t0),t1
cmpib,= 0,t1,dbit_spin_11
nop
@@ -1714,7 +1714,7 @@ dbit_trap_20:
load32 PA(pa_dbit_lock),t0
dbit_spin_20:
- ldcw 0(t0),t1
+ LDCW 0(t0),t1
cmpib,= 0,t1,dbit_spin_20
nop
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 2dc06b8e181..4398d2a9578 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -11,7 +11,7 @@
* Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy)
* Copyright 2003 Grant Grundler <grundler parisc-linux org>
* Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org>
- * Copyright 2004 Thibaut VARENE <varenet@parisc-linux.org>
+ * Copyright 2004,2006 Thibaut VARENE <varenet@parisc-linux.org>
*
* 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
@@ -252,10 +252,8 @@ int pdc_pat_chassis_send_log(unsigned long state, unsigned long data)
#endif
/**
- * pdc_chassis_disp - Updates display
+ * pdc_chassis_disp - Updates chassis code
* @retval: -1 on error, 0 on success
- *
- * Works on old PDC only (E class, others?)
*/
int pdc_chassis_disp(unsigned long disp)
{
@@ -269,6 +267,22 @@ int pdc_chassis_disp(unsigned long disp)
}
/**
+ * pdc_chassis_warn - Fetches chassis warnings
+ * @retval: -1 on error, 0 on success
+ */
+int pdc_chassis_warn(unsigned long *warn)
+{
+ int retval = 0;
+
+ spin_lock_irq(&pdc_lock);
+ retval = mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_WARN, __pa(pdc_result));
+ *warn = pdc_result[0];
+ spin_unlock_irq(&pdc_lock);
+
+ return retval;
+}
+
+/**
* pdc_coproc_cfg - To identify coprocessors attached to the processor.
* @pdc_coproc_info: Return buffer address.
*
@@ -393,7 +407,9 @@ int pdc_model_info(struct pdc_model *model)
* pdc_model_sysmodel - Get the system model name.
* @name: A char array of at least 81 characters.
*
- * Get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L)
+ * Get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L).
+ * Using OS_ID_HPUX will return the equivalent of the 'modelname' command
+ * on HP/UX.
*/
int pdc_model_sysmodel(char *name)
{
@@ -498,6 +514,26 @@ int pdc_cache_info(struct pdc_cache_info *cache_info)
return retval;
}
+/**
+ * pdc_spaceid_bits - Return whether Space ID hashing is turned on.
+ * @space_bits: Should be 0, if not, bad mojo!
+ *
+ * Returns information about Space ID hashing.
+ */
+int pdc_spaceid_bits(unsigned long *space_bits)
+{
+ int retval;
+
+ spin_lock_irq(&pdc_lock);
+ pdc_result[0] = 0;
+ retval = mem_pdc_call(PDC_CACHE, PDC_CACHE_RET_SPID, __pa(pdc_result), 0);
+ convert_to_wide(pdc_result);
+ *space_bits = pdc_result[0];
+ spin_unlock_irq(&pdc_lock);
+
+ return retval;
+}
+
#ifndef CONFIG_PA20
/**
* pdc_btlb_info - Return block TLB information.
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index f27cfe4771b..aee311884f3 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -89,6 +89,12 @@ static inline int is_local(struct module *me, void *loc)
return is_init(me, loc) || is_core(me, loc);
}
+static inline int is_local_section(struct module *me, void *loc, void *dot)
+{
+ return (is_init(me, loc) && is_init(me, dot)) ||
+ (is_core(me, loc) && is_core(me, dot));
+}
+
#ifndef __LP64__
struct got_entry {
@@ -364,8 +370,14 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
}
#endif /* __LP64__ */
+enum elf_stub_type {
+ ELF_STUB_GOT,
+ ELF_STUB_MILLI,
+ ELF_STUB_DIRECT,
+};
+
static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
- int millicode, int init_section)
+ enum elf_stub_type stub_type, int init_section)
{
unsigned long i;
struct stub_entry *stub;
@@ -396,7 +408,7 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
stub->insns[1] |= reassemble_17(rrsel(value, addend) / 4);
#else
-/* for 64-bit we have two kinds of stubs:
+/* for 64-bit we have three kinds of stubs:
* for normal function calls:
* ldd 0(%dp),%dp
* ldd 10(%dp), %r1
@@ -408,18 +420,23 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
* ldo 0(%r1), %r1
* ldd 10(%r1), %r1
* bve,n (%r1)
+ *
+ * for direct branches (jumps between different section of the
+ * same module):
+ * ldil 0, %r1
+ * ldo 0(%r1), %r1
+ * bve,n (%r1)
*/
- if (!millicode)
- {
+ switch (stub_type) {
+ case ELF_STUB_GOT:
stub->insns[0] = 0x537b0000; /* ldd 0(%dp),%dp */
stub->insns[1] = 0x53610020; /* ldd 10(%dp),%r1 */
stub->insns[2] = 0xe820d000; /* bve (%r1) */
stub->insns[3] = 0x537b0030; /* ldd 18(%dp),%dp */
stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
- }
- else
- {
+ break;
+ case ELF_STUB_MILLI:
stub->insns[0] = 0x20200000; /* ldil 0,%r1 */
stub->insns[1] = 0x34210000; /* ldo 0(%r1), %r1 */
stub->insns[2] = 0x50210020; /* ldd 10(%r1),%r1 */
@@ -427,7 +444,17 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
stub->insns[0] |= reassemble_21(lrsel(value, addend));
stub->insns[1] |= reassemble_14(rrsel(value, addend));
+ break;
+ case ELF_STUB_DIRECT:
+ stub->insns[0] = 0x20200000; /* ldil 0,%r1 */
+ stub->insns[1] = 0x34210000; /* ldo 0(%r1), %r1 */
+ stub->insns[2] = 0xe820d002; /* bve,n (%r1) */
+
+ stub->insns[0] |= reassemble_21(lrsel(value, addend));
+ stub->insns[1] |= reassemble_14(rrsel(value, addend));
+ break;
}
+
#endif
return (Elf_Addr)stub;
@@ -539,14 +566,14 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
break;
case R_PARISC_PCREL17F:
/* 17-bit PC relative address */
- val = get_stub(me, val, addend, 0, is_init(me, loc));
+ val = get_stub(me, val, addend, ELF_STUB_GOT, is_init(me, loc));
val = (val - dot - 8)/4;
CHECK_RELOC(val, 17)
*loc = (*loc & ~0x1f1ffd) | reassemble_17(val);
break;
case R_PARISC_PCREL22F:
/* 22-bit PC relative address; only defined for pa20 */
- val = get_stub(me, val, addend, 0, is_init(me, loc));
+ val = get_stub(me, val, addend, ELF_STUB_GOT, is_init(me, loc));
DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n",
strtab + sym->st_name, (unsigned long)loc, addend,
val)
@@ -643,13 +670,23 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
strtab + sym->st_name,
loc, val);
/* can we reach it locally? */
- if(!is_local(me, (void *)val)) {
- if (strncmp(strtab + sym->st_name, "$$", 2)
+ if(!is_local_section(me, (void *)val, (void *)dot)) {
+
+ if (is_local(me, (void *)val))
+ /* this is the case where the
+ * symbol is local to the
+ * module, but in a different
+ * section, so stub the jump
+ * in case it's more than 22
+ * bits away */
+ val = get_stub(me, val, addend, ELF_STUB_DIRECT,
+ is_init(me, loc));
+ else if (strncmp(strtab + sym->st_name, "$$", 2)
== 0)
- val = get_stub(me, val, addend, 1,
+ val = get_stub(me, val, addend, ELF_STUB_MILLI,
is_init(me, loc));
else
- val = get_stub(me, val, addend, 0,
+ val = get_stub(me, val, addend, ELF_STUB_GOT,
is_init(me, loc));
}
DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n",
diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index a45e2e2ffd9..d47ba1aa825 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -1,8 +1,8 @@
/*
- * interfaces to log Chassis Codes via PDC (firmware)
+ * interfaces to Chassis Codes via PDC (firmware)
*
* Copyright (C) 2002 Laurent Canet <canetl@esiee.fr>
- * Copyright (C) 2002-2004 Thibaut VARENE <varenet@parisc-linux.org>
+ * Copyright (C) 2002-2006 Thibaut VARENE <varenet@parisc-linux.org>
*
* 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
@@ -16,6 +16,10 @@
* 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
+ *
+ * TODO: poll chassis warns, trigger (configurable) machine shutdown when
+ * needed.
+ * Find out how to get Chassis warnings out of PAT boxes?
*/
#undef PDC_CHASSIS_DEBUG
@@ -30,15 +34,16 @@
#include <linux/reboot.h>
#include <linux/notifier.h>
#include <linux/cache.h>
+#include <linux/proc_fs.h>
#include <asm/pdc_chassis.h>
#include <asm/processor.h>
#include <asm/pdc.h>
#include <asm/pdcpat.h>
+#define PDC_CHASSIS_VER "0.05"
#ifdef CONFIG_PDC_CHASSIS
-static int pdc_chassis_old __read_mostly = 0;
static unsigned int pdc_chassis_enabled __read_mostly = 1;
@@ -64,7 +69,7 @@ __setup("pdcchassis=", pdc_chassis_setup);
* Currently, only E class and A180 are known to work with this.
* Inspired by Christoph Plattner
*/
-
+#if 0
static void __init pdc_chassis_checkold(void)
{
switch(CPU_HVERSION) {
@@ -73,7 +78,6 @@ static void __init pdc_chassis_checkold(void)
case 0x482: /* E45 */
case 0x483: /* E55 */
case 0x516: /* A180 */
- pdc_chassis_old = 1;
break;
default:
@@ -81,7 +85,7 @@ static void __init pdc_chassis_checkold(void)
}
DPRINTK(KERN_DEBUG "%s: pdc_chassis_checkold(); pdc_chassis_old = %d\n", __FILE__, pdc_chassis_old);
}
-
+#endif
/**
* pdc_chassis_panic_event() - Called by the panic handler.
@@ -131,30 +135,20 @@ static struct notifier_block pdc_chassis_reboot_block = {
void __init parisc_pdc_chassis_init(void)
{
#ifdef CONFIG_PDC_CHASSIS
- int handle = 0;
if (likely(pdc_chassis_enabled)) {
DPRINTK(KERN_DEBUG "%s: parisc_pdc_chassis_init()\n", __FILE__);
/* Let see if we have something to handle... */
- /* Check for PDC_PAT or old LED Panel */
- pdc_chassis_checkold();
- if (is_pdc_pat()) {
- printk(KERN_INFO "Enabling PDC_PAT chassis codes support.\n");
- handle = 1;
- }
- else if (unlikely(pdc_chassis_old)) {
- printk(KERN_INFO "Enabling old style chassis LED panel support.\n");
- handle = 1;
- }
-
- if (handle) {
- /* initialize panic notifier chain */
- atomic_notifier_chain_register(&panic_notifier_list,
- &pdc_chassis_panic_block);
-
- /* initialize reboot notifier chain */
- register_reboot_notifier(&pdc_chassis_reboot_block);
- }
+ printk(KERN_INFO "Enabling %s chassis codes support v%s\n",
+ is_pdc_pat() ? "PDC_PAT" : "regular",
+ PDC_CHASSIS_VER);
+
+ /* initialize panic notifier chain */
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &pdc_chassis_panic_block);
+
+ /* initialize reboot notifier chain */
+ register_reboot_notifier(&pdc_chassis_reboot_block);
}
#endif /* CONFIG_PDC_CHASSIS */
}
@@ -215,9 +209,12 @@ int pdc_chassis_send_status(int message)
}
} else retval = -1;
#else
- if (unlikely(pdc_chassis_old)) {
+ if (1) {
switch (message) {
case PDC_CHASSIS_DIRECT_BSTART:
+ retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_INIT));
+ break;
+
case PDC_CHASSIS_DIRECT_BCOMPLETE:
retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_RUN));
break;
@@ -244,3 +241,61 @@ int pdc_chassis_send_status(int message)
#endif /* CONFIG_PDC_CHASSIS */
return retval;
}
+
+#ifdef CONFIG_PDC_CHASSIS_WARN
+#ifdef CONFIG_PROC_FS
+static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ char *out = page;
+ int len, ret;
+ unsigned long warn;
+ u32 warnreg;
+
+ ret = pdc_chassis_warn(&warn);
+ if (ret != PDC_OK)
+ return -EIO;
+
+ warnreg = (warn & 0xFFFFFFFF);
+
+ if ((warnreg >> 24) & 0xFF)
+ out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
+
+ out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
+ out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
+ out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
+
+ len = out - page - off;
+ if (len < count) {
+ *eof = 1;
+ if (len <= 0) return 0;
+ } else {
+ len = count;
+ }
+ *start = page + off;
+ return len;
+}
+
+static int __init pdc_chassis_create_procfs(void)
+{
+ unsigned long test;
+ int ret;
+
+ ret = pdc_chassis_warn(&test);
+ if ((ret == PDC_BAD_PROC) || (ret == PDC_BAD_OPTION)) {
+ /* seems that some boxes (eg L1000) do not implement this */
+ printk(KERN_INFO "Chassis warnings not supported.\n");
+ return 0;
+ }
+
+ printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n",
+ PDC_CHASSIS_VER);
+ create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
+ NULL);
+ return 0;
+}
+
+__initcall(pdc_chassis_create_procfs);
+
+#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_PDC_CHASSIS_WARN */
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 413292f1a4a..3f28de97455 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -91,7 +91,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
int copied;
#ifdef __LP64__
- if (personality(child->personality) == PER_LINUX32) {
+ if (__is_compat_task(child)) {
unsigned int tmp;
addr &= 0xffffffffL;
@@ -123,7 +123,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case PTRACE_POKEDATA:
ret = 0;
#ifdef __LP64__
- if (personality(child->personality) == PER_LINUX32) {
+ if (__is_compat_task(child)) {
unsigned int tmp = (unsigned int)data;
DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
request == PTRACE_POKETEXT ? "TEXT" : "DATA",
@@ -146,7 +146,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case PTRACE_PEEKUSR: {
ret = -EIO;
#ifdef __LP64__
- if (personality(child->personality) == PER_LINUX32) {
+ if (__is_compat_task(child)) {
unsigned int tmp;
if (addr & (sizeof(int)-1))
@@ -205,7 +205,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
goto out_tsk;
}
#ifdef __LP64__
- if (personality(child->personality) == PER_LINUX32) {
+ if (__is_compat_task(child)) {
if (addr & (sizeof(int)-1))
goto out_tsk;
if ((addr = translate_usr_offset(addr)) < 0)
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 8c2859cca77..453d01a9f97 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -276,15 +276,6 @@ r64_ret:
#endif
- .export pc_in_user_space
- .text
- /* Doesn't belong here but I couldn't find a nicer spot. */
- /* Should never get called, only used by profile stuff in time.c */
-pc_in_user_space:
- bv,n 0(%rp)
- nop
-
-
.export __canonicalize_funcptr_for_compare
.text
/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 4a36ec3f6ac..278f4b9f6a3 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -303,6 +303,8 @@ extern void eisa_init(void);
static int __init parisc_init(void)
{
+ u32 osid = (OS_ID_LINUX << 16);
+
parisc_proc_mkdir();
parisc_init_resources();
do_device_inventory(); /* probe for hardware */
@@ -311,6 +313,9 @@ static int __init parisc_init(void)
/* set up a new led state on systems shipped LED State panel */
pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);
+
+ /* tell PDC we're Linux. Nevermind failure. */
+ pdc_stable_write(0x40, &osid, sizeof(osid));
processor_init();
printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index cc38edfd90c..bb83880c5ee 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -76,7 +76,7 @@ sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, struct pt_regs *r
#ifdef __LP64__
compat_sigset_t newset32;
- if(personality(current->personality) == PER_LINUX32){
+ if (is_compat_task()) {
/* XXX: Don't preclude handling different sized sigset_t's. */
if (sigsetsize != sizeof(compat_sigset_t))
return -EINVAL;
@@ -153,7 +153,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
compat_sigset_t compat_set;
struct compat_rt_sigframe __user * compat_frame;
- if(personality(current->personality) == PER_LINUX32)
+ if (is_compat_task())
sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
#endif
@@ -166,7 +166,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
#ifdef __LP64__
compat_frame = (struct compat_rt_sigframe __user *)frame;
- if(personality(current->personality) == PER_LINUX32){
+ if (is_compat_task()) {
DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask, sizeof(compat_set)))
goto give_sigsegv;
@@ -186,7 +186,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
/* Good thing we saved the old gr[30], eh? */
#ifdef __LP64__
- if(personality(current->personality) == PER_LINUX32){
+ if (is_compat_task()) {
DBG(1,"sys_rt_sigreturn: compat_frame->uc.uc_mcontext 0x%p\n",
&compat_frame->uc.uc_mcontext);
// FIXME: Load upper half from register file
@@ -315,7 +315,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
compat_frame = (struct compat_rt_sigframe __user *)frame;
- if(personality(current->personality) == PER_LINUX32) {
+ if (is_compat_task()) {
DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
err |= copy_siginfo_to_user32(&compat_frame->info, info);
DBG(1,"SETUP_RT_FRAME: 1\n");
@@ -392,7 +392,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
haddr = A(ka->sa.sa_handler);
/* The sa_handler may be a pointer to a function descriptor */
#ifdef __LP64__
- if(personality(current->personality) == PER_LINUX32) {
+ if (is_compat_task()) {
#endif
if (haddr & PA_PLABEL_FDESC) {
Elf32_Fdesc fdesc;
@@ -427,19 +427,19 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
*/
sigframe_size = PARISC_RT_SIGFRAME_SIZE;
#ifdef __LP64__
- if(personality(current->personality) == PER_LINUX32)
+ if (is_compat_task())
sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
#endif
if (in_syscall) {
regs->gr[31] = haddr;
#ifdef __LP64__
- if(personality(current->personality) == PER_LINUX)
+ if (personality(current->personality) == PER_LINUX)
sigframe_size |= 1;
#endif
} else {
unsigned long psw = USER_PSW;
#ifdef __LP64__
- if(personality(current->personality) == PER_LINUX)
+ if (personality(current->personality) == PER_LINUX)
psw |= PSW_W;
#endif
@@ -464,7 +464,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->gr[26] = sig; /* signal number */
#ifdef __LP64__
- if(personality(current->personality) == PER_LINUX32){
+ if (is_compat_task()) {
regs->gr[25] = A(&compat_frame->info); /* siginfo pointer */
regs->gr[24] = A(&compat_frame->uc); /* ucontext pointer */
} else
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 479d9a017cd..9670a89c77f 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -29,18 +29,6 @@
.level 1.1
#endif
-#ifndef CONFIG_64BIT
- .macro fixup_branch,lbl
- b \lbl
- .endm
-#else
- .macro fixup_branch,lbl
- ldil L%\lbl, %r1
- ldo R%\lbl(%r1), %r1
- bv,n %r0(%r1)
- .endm
-#endif
-
.text
.import syscall_exit,code
@@ -541,7 +529,7 @@ cas_nocontend:
# endif
/* ENABLE_LWS_DEBUG */
- ldcw 0(%sr2,%r20), %r28 /* Try to acquire the lock */
+ LDCW 0(%sr2,%r20), %r28 /* Try to acquire the lock */
cmpb,<>,n %r0, %r28, cas_action /* Did we get it? */
cas_wouldblock:
ldo 2(%r0), %r28 /* 2nd case */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 594930bc4bc..eb35e1c0bb5 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -157,8 +157,22 @@ do_gettimeofday (struct timeval *tv)
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
- while (usec >= 1000000) {
- usec -= 1000000;
+ if (unlikely(usec > LONG_MAX)) {
+ /* This can happen if the gettimeoffset adjustment is
+ * negative and xtime.tv_nsec is smaller than the
+ * adjustment */
+ printk(KERN_ERR "do_gettimeofday() spurious xtime.tv_nsec of %ld\n", usec);
+ usec += USEC_PER_SEC;
+ --sec;
+ /* This should never happen, it means the negative
+ * time adjustment was more than a second, so there's
+ * something seriously wrong */
+ BUG_ON(usec > LONG_MAX);
+ }
+
+
+ while (usec >= USEC_PER_SEC) {
+ usec -= USEC_PER_SEC;
++sec;
}
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index ff200608c85..348344a84bf 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -66,57 +66,42 @@ int printbinary(char *buf, unsigned long x, int nbits)
#else
#define RFMT "%08lx"
#endif
+#define FFMT "%016llx" /* fpregs are 64-bit always */
-void show_regs(struct pt_regs *regs)
+#define PRINTREGS(lvl,r,f,fmt,x) \
+ printk("%s%s%02d-%02d " fmt " " fmt " " fmt " " fmt "\n", \
+ lvl, f, (x), (x+3), (r)[(x)+0], (r)[(x)+1], \
+ (r)[(x)+2], (r)[(x)+3])
+
+static void print_gr(char *level, struct pt_regs *regs)
{
int i;
- char buf[128], *p;
- char *level;
- unsigned long cr30;
- unsigned long cr31;
- /* carlos says that gcc understands better memory in a struct,
- * and it makes our life easier with fpregs -- T-Bone */
- struct { u32 sw[2]; } s;
-
- level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
-
- printk("%s\n", level); /* don't want to have that pretty register dump messed up */
+ char buf[64];
+ printk("%s\n", level);
printk("%s YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI\n", level);
printbinary(buf, regs->gr[0], 32);
printk("%sPSW: %s %s\n", level, buf, print_tainted());
- for (i = 0; i < 32; i += 4) {
- int j;
- p = buf;
- p += sprintf(p, "%sr%02d-%02d ", level, i, i + 3);
- for (j = 0; j < 4; j++) {
- p += sprintf(p, " " RFMT, (i+j) == 0 ? 0 : regs->gr[i + j]);
- }
- printk("%s\n", buf);
- }
+ for (i = 0; i < 32; i += 4)
+ PRINTREGS(level, regs->gr, "r", RFMT, i);
+}
- for (i = 0; i < 8; i += 4) {
- int j;
- p = buf;
- p += sprintf(p, "%ssr%d-%d ", level, i, i + 3);
- for (j = 0; j < 4; j++) {
- p += sprintf(p, " " RFMT, regs->sr[i + j]);
- }
- printk("%s\n", buf);
- }
+static void print_fr(char *level, struct pt_regs *regs)
+{
+ int i;
+ char buf[64];
+ struct { u32 sw[2]; } s;
/* FR are 64bit everywhere. Need to use asm to get the content
* of fpsr/fper1, and we assume that we won't have a FP Identify
* in our way, otherwise we're screwed.
* The fldd is used to restore the T-bit if there was one, as the
* store clears it anyway.
- * BTW, PA2.0 book says "thou shall not use fstw on FPSR/FPERs". */
- __asm__ (
- "fstd %%fr0,0(%1) \n\t"
- "fldd 0(%1),%%fr0 \n\t"
- : "=m" (s) : "r" (&s) : "%r0"
- );
+ * PA2.0 book says "thou shall not use fstw on FPSR/FPERs" - T-Bone */
+ asm volatile ("fstd %%fr0,0(%1) \n\t"
+ "fldd 0(%1),%%fr0 \n\t"
+ : "=m" (s) : "r" (&s) : "r0");
printk("%s\n", level);
printk("%s VZOUICununcqcqcqcqcqcrmunTDVZOUI\n", level);
@@ -125,14 +110,25 @@ void show_regs(struct pt_regs *regs)
printk("%sFPER1: %08x\n", level, s.sw[1]);
/* here we'll print fr0 again, tho it'll be meaningless */
- for (i = 0; i < 32; i += 4) {
- int j;
- p = buf;
- p += sprintf(p, "%sfr%02d-%02d ", level, i, i + 3);
- for (j = 0; j < 4; j++)
- p += sprintf(p, " %016llx", (i+j) == 0 ? 0 : regs->fr[i+j]);
- printk("%s\n", buf);
- }
+ for (i = 0; i < 32; i += 4)
+ PRINTREGS(level, regs->fr, "fr", FFMT, i);
+}
+
+void show_regs(struct pt_regs *regs)
+{
+ int i;
+ char *level;
+ unsigned long cr30, cr31;
+
+ level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
+
+ print_gr(level, regs);
+
+ for (i = 0; i < 8; i += 4)
+ PRINTREGS(level, regs->sr, "sr", RFMT, i);
+
+ if (user_mode(regs))
+ print_fr(level, regs);
cr30 = mfctl(30);
cr31 = mfctl(31);
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index de0a1b21cb4..92328fbddb3 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -43,6 +43,8 @@
"\tldil L%%" #lbl ", %%r1\n" \
"\tldo R%%" #lbl "(%%r1), %%r1\n" \
"\tbv,n %%r0(%%r1)\n"
+/* If you use FIXUP_BRANCH, then you must list this clobber */
+#define FIXUP_BRANCH_CLOBBER "r1"
/* 1111 1100 0000 0000 0001 0011 1100 0000 */
#define OPCODE1(a,b,c) ((a)<<26|(b)<<12|(c)<<6)
@@ -157,7 +159,7 @@ static int emulate_ldh(struct pt_regs *regs, int toreg)
" .previous\n"
: "=r" (val), "=r" (ret)
: "0" (val), "r" (saddr), "r" (regs->isr)
- : "r20" );
+ : "r20", FIXUP_BRANCH_CLOBBER );
DPRINTF("val = 0x" RFMT "\n", val);
@@ -202,7 +204,7 @@ static int emulate_ldw(struct pt_regs *regs, int toreg, int flop)
" .previous\n"
: "=r" (val), "=r" (ret)
: "0" (val), "r" (saddr), "r" (regs->isr)
- : "r19", "r20" );
+ : "r19", "r20", FIXUP_BRANCH_CLOBBER );
DPRINTF("val = 0x" RFMT "\n", val);
@@ -253,7 +255,7 @@ static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
" .previous\n"
: "=r" (val), "=r" (ret)
: "0" (val), "r" (saddr), "r" (regs->isr)
- : "r19", "r20" );
+ : "r19", "r20", FIXUP_BRANCH_CLOBBER );
#else
{
unsigned long valh=0,vall=0;
@@ -287,7 +289,7 @@ static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
" .previous\n"
: "=r" (valh), "=r" (vall), "=r" (ret)
: "0" (valh), "1" (vall), "r" (saddr), "r" (regs->isr)
- : "r19", "r20" );
+ : "r19", "r20", FIXUP_BRANCH_CLOBBER );
val=((__u64)valh<<32)|(__u64)vall;
}
#endif
@@ -335,7 +337,7 @@ static int emulate_sth(struct pt_regs *regs, int frreg)
" .previous\n"
: "=r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
- : "r19" );
+ : "r19", FIXUP_BRANCH_CLOBBER );
return ret;
}
@@ -389,7 +391,7 @@ static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
" .previous\n"
: "=r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
- : "r19", "r20", "r21", "r22", "r1" );
+ : "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
return 0;
}
@@ -450,7 +452,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
" .previous\n"
: "=r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
- : "r19", "r20", "r21", "r22", "r1" );
+ : "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
#else
{
unsigned long valh=(val>>32),vall=(val&0xffffffffl);
@@ -495,7 +497,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
" .previous\n"
: "=r" (ret)
: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
- : "r19", "r20", "r21", "r1" );
+ : "r19", "r20", "r21", "r1", FIXUP_BRANCH_CLOBBER );
}
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-23 23:38:08 +0000