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-rw-r--r--arch/powerpc/platforms/44x/warp.c105
-rw-r--r--arch/powerpc/platforms/4xx/hsta_msi.c1
-rw-r--r--arch/powerpc/platforms/52xx/lite5200_sleep.S15
-rw-r--r--arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c15
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_rdb.c2
-rw-r--r--arch/powerpc/platforms/85xx/sgy_cts1000.c132
-rw-r--r--arch/powerpc/platforms/Kconfig.cputype9
-rw-r--r--arch/powerpc/platforms/cell/axon_msi.c1
-rw-r--r--arch/powerpc/platforms/pasemi/gpio_mdio.c4
-rw-r--r--arch/powerpc/platforms/pasemi/msi.c1
-rw-r--r--arch/powerpc/platforms/powermac/setup.c18
-rw-r--r--arch/powerpc/platforms/ps3/system-bus.c2
-rw-r--r--arch/powerpc/platforms/pseries/eeh_pseries.c15
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-cpu.c1
-rw-r--r--arch/powerpc/platforms/pseries/hvCall.S38
-rw-r--r--arch/powerpc/platforms/pseries/iommu.c2
-rw-r--r--arch/powerpc/platforms/pseries/mobility.c7
-rw-r--r--arch/powerpc/platforms/pseries/plpks.c50
-rw-r--r--arch/powerpc/platforms/pseries/plpks.h2
19 files changed, 243 insertions, 177 deletions
diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c
index f03432ef010bd..cefa313c09f0b 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -5,15 +5,17 @@
* Copyright (c) 2008-2009 PIKA Technologies
* Sean MacLennan <smaclennan@pikatech.com>
*/
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/kthread.h>
+#include <linux/leds.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/export.h>
@@ -92,8 +94,6 @@ static int __init warp_post_info(void)
static LIST_HEAD(dtm_shutdown_list);
static void __iomem *dtm_fpga;
-static unsigned green_led, red_led;
-
struct dtm_shutdown {
struct list_head list;
@@ -101,7 +101,6 @@ struct dtm_shutdown {
void *arg;
};
-
int pika_dtm_register_shutdown(void (*func)(void *arg), void *arg)
{
struct dtm_shutdown *shutdown;
@@ -132,6 +131,35 @@ int pika_dtm_unregister_shutdown(void (*func)(void *arg), void *arg)
return -EINVAL;
}
+#define WARP_GREEN_LED 0
+#define WARP_RED_LED 1
+
+static struct gpio_led warp_gpio_led_pins[] = {
+ [WARP_GREEN_LED] = {
+ .name = "green",
+ .default_state = LEDS_DEFSTATE_KEEP,
+ .gpiod = NULL, /* to be filled by pika_setup_leds() */
+ },
+ [WARP_RED_LED] = {
+ .name = "red",
+ .default_state = LEDS_DEFSTATE_KEEP,
+ .gpiod = NULL, /* to be filled by pika_setup_leds() */
+ },
+};
+
+static struct gpio_led_platform_data warp_gpio_led_data = {
+ .leds = warp_gpio_led_pins,
+ .num_leds = ARRAY_SIZE(warp_gpio_led_pins),
+};
+
+static struct platform_device warp_gpio_leds = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &warp_gpio_led_data,
+ },
+};
+
static irqreturn_t temp_isr(int irq, void *context)
{
struct dtm_shutdown *shutdown;
@@ -139,7 +167,7 @@ static irqreturn_t temp_isr(int irq, void *context)
local_irq_disable();
- gpio_set_value(green_led, 0);
+ gpiod_set_value(warp_gpio_led_pins[WARP_GREEN_LED].gpiod, 0);
/* Run through the shutdown list. */
list_for_each_entry(shutdown, &dtm_shutdown_list, list)
@@ -153,7 +181,7 @@ static irqreturn_t temp_isr(int irq, void *context)
out_be32(dtm_fpga + 0x14, reset);
}
- gpio_set_value(red_led, value);
+ gpiod_set_value(warp_gpio_led_pins[WARP_RED_LED].gpiod, value);
value ^= 1;
mdelay(500);
}
@@ -162,25 +190,78 @@ static irqreturn_t temp_isr(int irq, void *context)
return IRQ_HANDLED;
}
+/*
+ * Because green and red power LEDs are normally driven by leds-gpio driver,
+ * but in case of critical temperature shutdown we want to drive them
+ * ourselves, we acquire both and then create leds-gpio platform device
+ * ourselves, instead of doing it through device tree. This way we can still
+ * keep access to the gpios and use them when needed.
+ */
static int pika_setup_leds(void)
{
struct device_node *np, *child;
+ struct gpio_desc *gpio;
+ struct gpio_led *led;
+ int led_count = 0;
+ int error;
+ int i;
- np = of_find_compatible_node(NULL, NULL, "gpio-leds");
+ np = of_find_compatible_node(NULL, NULL, "warp-power-leds");
if (!np) {
printk(KERN_ERR __FILE__ ": Unable to find leds\n");
return -ENOENT;
}
- for_each_child_of_node(np, child)
- if (of_node_name_eq(child, "green"))
- green_led = of_get_gpio(child, 0);
- else if (of_node_name_eq(child, "red"))
- red_led = of_get_gpio(child, 0);
+ for_each_child_of_node(np, child) {
+ for (i = 0; i < ARRAY_SIZE(warp_gpio_led_pins); i++) {
+ led = &warp_gpio_led_pins[i];
+
+ if (!of_node_name_eq(child, led->name))
+ continue;
+
+ if (led->gpiod) {
+ printk(KERN_ERR __FILE__ ": %s led has already been defined\n",
+ led->name);
+ continue;
+ }
+
+ gpio = fwnode_gpiod_get_index(of_fwnode_handle(child),
+ NULL, 0, GPIOD_ASIS,
+ led->name);
+ error = PTR_ERR_OR_ZERO(gpio);
+ if (error) {
+ printk(KERN_ERR __FILE__ ": Failed to get %s led gpio: %d\n",
+ led->name, error);
+ of_node_put(child);
+ goto err_cleanup_pins;
+ }
+
+ led->gpiod = gpio;
+ led_count++;
+ }
+ }
of_node_put(np);
+ /* Skip device registration if no leds have been defined */
+ if (led_count) {
+ error = platform_device_register(&warp_gpio_leds);
+ if (error) {
+ printk(KERN_ERR __FILE__ ": Unable to add leds-gpio: %d\n",
+ error);
+ goto err_cleanup_pins;
+ }
+ }
+
return 0;
+
+err_cleanup_pins:
+ for (i = 0; i < ARRAY_SIZE(warp_gpio_led_pins); i++) {
+ led = &warp_gpio_led_pins[i];
+ gpiod_put(led->gpiod);
+ led->gpiod = NULL;
+ }
+ return error;
}
static void pika_setup_critical_temp(struct device_node *np,
diff --git a/arch/powerpc/platforms/4xx/hsta_msi.c b/arch/powerpc/platforms/4xx/hsta_msi.c
index d4f7fff1fc871..e11b57a62b054 100644
--- a/arch/powerpc/platforms/4xx/hsta_msi.c
+++ b/arch/powerpc/platforms/4xx/hsta_msi.c
@@ -115,6 +115,7 @@ static void hsta_teardown_msi_irqs(struct pci_dev *dev)
msi_bitmap_free_hwirqs(&ppc4xx_hsta_msi.bmp, irq, 1);
pr_debug("%s: Teardown IRQ %u (index %u)\n", __func__,
entry->irq, irq);
+ entry->irq = 0;
}
}
diff --git a/arch/powerpc/platforms/52xx/lite5200_sleep.S b/arch/powerpc/platforms/52xx/lite5200_sleep.S
index afee8b1515a8e..0b12647e7b420 100644
--- a/arch/powerpc/platforms/52xx/lite5200_sleep.S
+++ b/arch/powerpc/platforms/52xx/lite5200_sleep.S
@@ -1,4 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+
#include <asm/reg.h>
#include <asm/ppc_asm.h>
#include <asm/processor.h>
@@ -178,7 +180,8 @@ sram_code:
/* local udelay in sram is needed */
- udelay: /* r11 - tb_ticks_per_usec, r12 - usecs, overwrites r13 */
+SYM_FUNC_START_LOCAL(udelay)
+ /* r11 - tb_ticks_per_usec, r12 - usecs, overwrites r13 */
mullw r12, r12, r11
mftb r13 /* start */
add r12, r13, r12 /* end */
@@ -187,6 +190,7 @@ sram_code:
cmp cr0, r13, r12
blt 1b
blr
+SYM_FUNC_END(udelay)
sram_code_end:
@@ -271,7 +275,7 @@ _ASM_NOKPROBE_SYMBOL(lite5200_wakeup)
SAVE_SR(n+2, addr+2); \
SAVE_SR(n+3, addr+3);
-save_regs:
+SYM_FUNC_START_LOCAL(save_regs)
stw r0, 0(r4)
stw r1, 0x4(r4)
stw r2, 0x8(r4)
@@ -317,6 +321,7 @@ save_regs:
SAVE_SPRN(TBRU, 0x5b)
blr
+SYM_FUNC_END(save_regs)
/* restore registers */
@@ -336,7 +341,7 @@ save_regs:
LOAD_SR(n+2, addr+2); \
LOAD_SR(n+3, addr+3);
-restore_regs:
+SYM_FUNC_START_LOCAL(restore_regs)
lis r4, registers@h
ori r4, r4, registers@l
@@ -393,6 +398,7 @@ restore_regs:
blr
_ASM_NOKPROBE_SYMBOL(restore_regs)
+SYM_FUNC_END(restore_regs)
@@ -403,7 +409,7 @@ _ASM_NOKPROBE_SYMBOL(restore_regs)
* Flush data cache
* Do this by just reading lots of stuff into the cache.
*/
-flush_data_cache:
+SYM_FUNC_START_LOCAL(flush_data_cache)
lis r3,CONFIG_KERNEL_START@h
ori r3,r3,CONFIG_KERNEL_START@l
li r4,NUM_CACHE_LINES
@@ -413,3 +419,4 @@ flush_data_cache:
addi r3,r3,L1_CACHE_BYTES /* Next line, please */
bdnz 1b
blr
+SYM_FUNC_END(flush_data_cache)
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
index 48038aaedbd36..6d1dd6e874786 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
@@ -59,6 +59,8 @@ static struct mpc52xx_lpbfifo lpbfifo;
/**
* mpc52xx_lpbfifo_kick - Trigger the next block of data to be transferred
+ *
+ * @req: Pointer to request structure
*/
static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req)
{
@@ -178,6 +180,8 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req)
/**
* mpc52xx_lpbfifo_irq - IRQ handler for LPB FIFO
+ * @irq: IRQ number to be handled
+ * @dev_id: device ID cookie
*
* On transmit, the dma completion irq triggers before the fifo completion
* triggers. Handle the dma completion here instead of the LPB FIFO Bestcomm
@@ -216,6 +220,8 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req)
* or nested spinlock condition. The out path is non-trivial, so
* extra fiddling is done to make sure all paths lead to the same
* outbound code.
+ *
+ * Return: irqreturn code (%IRQ_HANDLED)
*/
static irqreturn_t mpc52xx_lpbfifo_irq(int irq, void *dev_id)
{
@@ -320,8 +326,12 @@ static irqreturn_t mpc52xx_lpbfifo_irq(int irq, void *dev_id)
/**
* mpc52xx_lpbfifo_bcom_irq - IRQ handler for LPB FIFO Bestcomm task
+ * @irq: IRQ number to be handled
+ * @dev_id: device ID cookie
*
* Only used when receiving data.
+ *
+ * Return: irqreturn code (%IRQ_HANDLED)
*/
static irqreturn_t mpc52xx_lpbfifo_bcom_irq(int irq, void *dev_id)
{
@@ -372,7 +382,7 @@ static irqreturn_t mpc52xx_lpbfifo_bcom_irq(int irq, void *dev_id)
}
/**
- * mpc52xx_lpbfifo_bcom_poll - Poll for DMA completion
+ * mpc52xx_lpbfifo_poll - Poll for DMA completion
*/
void mpc52xx_lpbfifo_poll(void)
{
@@ -393,6 +403,8 @@ EXPORT_SYMBOL(mpc52xx_lpbfifo_poll);
/**
* mpc52xx_lpbfifo_submit - Submit an LPB FIFO transfer request.
* @req: Pointer to request structure
+ *
+ * Return: %0 on success, -errno code on error
*/
int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req)
{
@@ -531,6 +543,7 @@ static int mpc52xx_lpbfifo_probe(struct platform_device *op)
err_bcom_rx_irq:
bcom_gen_bd_rx_release(lpbfifo.bcom_rx_task);
err_bcom_rx:
+ free_irq(lpbfifo.irq, &lpbfifo);
err_irq:
iounmap(lpbfifo.regs);
lpbfifo.regs = NULL;
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index e12cb44e717f1..caa96edf0e72a 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -107,7 +107,7 @@ static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
goto next;
unreg:
- platform_device_del(pdev);
+ platform_device_put(pdev);
err:
pr_err("%pOF: registration failed\n", np);
next:
diff --git a/arch/powerpc/platforms/85xx/sgy_cts1000.c b/arch/powerpc/platforms/85xx/sgy_cts1000.c
index e14d1b74d4e4c..751395cbf0222 100644
--- a/arch/powerpc/platforms/85xx/sgy_cts1000.c
+++ b/arch/powerpc/platforms/85xx/sgy_cts1000.c
@@ -7,10 +7,13 @@
* Copyright 2012 by Servergy, Inc.
*/
+#define pr_fmt(fmt) "gpio-halt: " fmt
+
+#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/device.h>
+#include <linux/gpio/consumer.h>
#include <linux/module.h>
-#include <linux/of_gpio.h>
#include <linux/of_irq.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
@@ -18,7 +21,8 @@
#include <asm/machdep.h>
-static struct device_node *halt_node;
+static struct gpio_desc *halt_gpio;
+static int halt_irq;
static const struct of_device_id child_match[] = {
{
@@ -36,23 +40,10 @@ static DECLARE_WORK(gpio_halt_wq, gpio_halt_wfn);
static void __noreturn gpio_halt_cb(void)
{
- enum of_gpio_flags flags;
- int trigger, gpio;
-
- if (!halt_node)
- panic("No reset GPIO information was provided in DT\n");
-
- gpio = of_get_gpio_flags(halt_node, 0, &flags);
-
- if (!gpio_is_valid(gpio))
- panic("Provided GPIO is invalid\n");
-
- trigger = (flags == OF_GPIO_ACTIVE_LOW);
-
- printk(KERN_INFO "gpio-halt: triggering GPIO.\n");
+ pr_info("triggering GPIO.\n");
/* Probably wont return */
- gpio_set_value(gpio, trigger);
+ gpiod_set_value(halt_gpio, 1);
panic("Halt failed\n");
}
@@ -61,95 +52,78 @@ static void __noreturn gpio_halt_cb(void)
* to handle the shutdown/poweroff. */
static irqreturn_t gpio_halt_irq(int irq, void *__data)
{
- printk(KERN_INFO "gpio-halt: shutdown due to power button IRQ.\n");
+ struct platform_device *pdev = __data;
+
+ dev_info(&pdev->dev, "scheduling shutdown due to power button IRQ\n");
schedule_work(&gpio_halt_wq);
return IRQ_HANDLED;
};
-static int gpio_halt_probe(struct platform_device *pdev)
+static int __gpio_halt_probe(struct platform_device *pdev,
+ struct device_node *halt_node)
{
- enum of_gpio_flags flags;
- struct device_node *node = pdev->dev.of_node;
- struct device_node *child_node;
- int gpio, err, irq;
- int trigger;
-
- if (!node)
- return -ENODEV;
-
- /* If there's no matching child, this isn't really an error */
- child_node = of_find_matching_node(node, child_match);
- if (!child_node)
- return 0;
-
- /* Technically we could just read the first one, but punish
- * DT writers for invalid form. */
- if (of_gpio_count(child_node) != 1) {
- err = -EINVAL;
- goto err_put;
- }
-
- /* Get the gpio number relative to the dynamic base. */
- gpio = of_get_gpio_flags(child_node, 0, &flags);
- if (!gpio_is_valid(gpio)) {
- err = -EINVAL;
- goto err_put;
- }
+ int err;
- err = gpio_request(gpio, "gpio-halt");
+ halt_gpio = fwnode_gpiod_get_index(of_fwnode_handle(halt_node),
+ NULL, 0, GPIOD_OUT_LOW, "gpio-halt");
+ err = PTR_ERR_OR_ZERO(halt_gpio);
if (err) {
- printk(KERN_ERR "gpio-halt: error requesting GPIO %d.\n",
- gpio);
- goto err_put;
+ dev_err(&pdev->dev, "failed to request halt GPIO: %d\n", err);
+ return err;
}
- trigger = (flags == OF_GPIO_ACTIVE_LOW);
-
- gpio_direction_output(gpio, !trigger);
-
/* Now get the IRQ which tells us when the power button is hit */
- irq = irq_of_parse_and_map(child_node, 0);
- err = request_irq(irq, gpio_halt_irq, IRQF_TRIGGER_RISING |
- IRQF_TRIGGER_FALLING, "gpio-halt", child_node);
+ halt_irq = irq_of_parse_and_map(halt_node, 0);
+ err = request_irq(halt_irq, gpio_halt_irq,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ "gpio-halt", pdev);
if (err) {
- printk(KERN_ERR "gpio-halt: error requesting IRQ %d for "
- "GPIO %d.\n", irq, gpio);
- gpio_free(gpio);
- goto err_put;
+ dev_err(&pdev->dev, "failed to request IRQ %d: %d\n",
+ halt_irq, err);
+ gpiod_put(halt_gpio);
+ halt_gpio = NULL;
+ return err;
}
/* Register our halt function */
ppc_md.halt = gpio_halt_cb;
pm_power_off = gpio_halt_cb;
- printk(KERN_INFO "gpio-halt: registered GPIO %d (%d trigger, %d"
- " irq).\n", gpio, trigger, irq);
+ dev_info(&pdev->dev, "registered halt GPIO, irq: %d\n", halt_irq);
- halt_node = child_node;
return 0;
-
-err_put:
- of_node_put(child_node);
- return err;
}
-static int gpio_halt_remove(struct platform_device *pdev)
+static int gpio_halt_probe(struct platform_device *pdev)
{
- if (halt_node) {
- int gpio = of_get_gpio(halt_node, 0);
- int irq = irq_of_parse_and_map(halt_node, 0);
+ struct device_node *halt_node;
+ int ret;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ /* If there's no matching child, this isn't really an error */
+ halt_node = of_find_matching_node(pdev->dev.of_node, child_match);
+ if (!halt_node)
+ return -ENODEV;
+
+ ret = __gpio_halt_probe(pdev, halt_node);
+ of_node_put(halt_node);
- free_irq(irq, halt_node);
+ return ret;
+}
- ppc_md.halt = NULL;
- pm_power_off = NULL;
+static int gpio_halt_remove(struct platform_device *pdev)
+{
+ free_irq(halt_irq, pdev);
+ cancel_work_sync(&gpio_halt_wq);
- gpio_free(gpio);
+ ppc_md.halt = NULL;
+ pm_power_off = NULL;
- of_node_put(halt_node);
- halt_node = NULL;
- }
+ gpiod_put(halt_gpio);
+ halt_gpio = NULL;
return 0;
}
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 0c4eed9aea806..9563336e3348f 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -135,6 +135,7 @@ config GENERIC_CPU
depends on PPC_BOOK3S_64 && CPU_LITTLE_ENDIAN
select ARCH_HAS_FAST_MULTIPLIER
select PPC_64S_HASH_MMU
+ select PPC_HAS_LBARX_LHARX
config POWERPC_CPU
bool "Generic 32 bits powerpc"
@@ -160,17 +161,20 @@ config POWER7_CPU
depends on PPC_BOOK3S_64
select ARCH_HAS_FAST_MULTIPLIER
select PPC_64S_HASH_MMU
+ select PPC_HAS_LBARX_LHARX
config POWER8_CPU
bool "POWER8"
depends on PPC_BOOK3S_64
select ARCH_HAS_FAST_MULTIPLIER
select PPC_64S_HASH_MMU
+ select PPC_HAS_LBARX_LHARX
config POWER9_CPU
bool "POWER9"
depends on PPC_BOOK3S_64
select ARCH_HAS_FAST_MULTIPLIER
+ select PPC_HAS_LBARX_LHARX
config POWER10_CPU
bool "POWER10"
@@ -184,6 +188,7 @@ config E5500_CPU
config E6500_CPU
bool "Freescale e6500"
depends on PPC64 && PPC_E500
+ select PPC_HAS_LBARX_LHARX
config 405_CPU
bool "40x family"
@@ -575,10 +580,10 @@ config CPU_LITTLE_ENDIAN
endchoice
config PPC64_ELF_ABI_V1
- def_bool PPC64 && CPU_BIG_ENDIAN
+ def_bool PPC64 && (CPU_BIG_ENDIAN && !PPC64_BIG_ENDIAN_ELF_ABI_V2)
config PPC64_ELF_ABI_V2
- def_bool PPC64 && CPU_LITTLE_ENDIAN
+ def_bool PPC64 && !PPC64_ELF_ABI_V1
config PPC64_BOOT_WRAPPER
def_bool n
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 5b012abca773d..0c11aad896c79 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -289,6 +289,7 @@ static void axon_msi_teardown_msi_irqs(struct pci_dev *dev)
msi_for_each_desc(entry, &dev->dev, MSI_DESC_ASSOCIATED) {
irq_set_msi_desc(entry->irq, NULL);
irq_dispose_mapping(entry->irq);
+ entry->irq = 0;
}
}
diff --git a/arch/powerpc/platforms/pasemi/gpio_mdio.c b/arch/powerpc/platforms/pasemi/gpio_mdio.c
index bf300167ad6bf..913b77b92cea1 100644
--- a/arch/powerpc/platforms/pasemi/gpio_mdio.c
+++ b/arch/powerpc/platforms/pasemi/gpio_mdio.c
@@ -294,7 +294,7 @@ static struct platform_driver gpio_mdio_driver =
},
};
-static int gpio_mdio_init(void)
+static int __init gpio_mdio_init(void)
{
struct device_node *np;
@@ -314,7 +314,7 @@ static int gpio_mdio_init(void)
}
module_init(gpio_mdio_init);
-static void gpio_mdio_exit(void)
+static void __exit gpio_mdio_exit(void)
{
platform_driver_unregister(&gpio_mdio_driver);
if (gpio_regs)
diff --git a/arch/powerpc/platforms/pasemi/msi.c b/arch/powerpc/platforms/pasemi/msi.c
index dc1846660005c..166c97fff16d2 100644
--- a/arch/powerpc/platforms/pasemi/msi.c
+++ b/arch/powerpc/platforms/pasemi/msi.c
@@ -66,6 +66,7 @@ static void pasemi_msi_teardown_msi_irqs(struct pci_dev *pdev)
hwirq = virq_to_hw(entry->irq);
irq_set_msi_desc(entry->irq, NULL);
irq_dispose_mapping(entry->irq);
+ entry->irq = 0;
msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap, hwirq, ALLOC_CHUNK);
}
}
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 04daa7f0a03c6..4f7ee885a78ff 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -70,9 +70,7 @@
#undef SHOW_GATWICK_IRQS
-int ppc_override_l2cr = 0;
-int ppc_override_l2cr_value;
-int has_l2cache = 0;
+static int has_l2cache;
int pmac_newworld;
@@ -236,22 +234,16 @@ static void __init l2cr_init(void)
const unsigned int *l2cr =
of_get_property(np, "l2cr-value", NULL);
if (l2cr) {
- ppc_override_l2cr = 1;
- ppc_override_l2cr_value = *l2cr;
_set_L2CR(0);
- _set_L2CR(ppc_override_l2cr_value);
+ _set_L2CR(*l2cr);
+ pr_info("L2CR overridden (0x%x), backside cache is %s\n",
+ *l2cr, ((*l2cr) & 0x80000000) ?
+ "enabled" : "disabled");
}
of_node_put(np);
break;
}
}
-
- if (ppc_override_l2cr)
- printk(KERN_INFO "L2CR overridden (0x%x), "
- "backside cache is %s\n",
- ppc_override_l2cr_value,
- (ppc_override_l2cr_value & 0x80000000)
- ? "enabled" : "disabled");
}
#endif
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 2502e9b17df4a..38a7e02295c8f 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -466,7 +466,7 @@ static struct attribute *ps3_system_bus_dev_attrs[] = {
};
ATTRIBUTE_GROUPS(ps3_system_bus_dev);
-struct bus_type ps3_system_bus_type = {
+static struct bus_type ps3_system_bus_type = {
.name = "ps3_system_bus",
.match = ps3_system_bus_match,
.uevent = ps3_system_bus_uevent,
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 8e40ccac0f44e..6b507b62ce8f1 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -154,7 +154,7 @@ static int pseries_eeh_get_pe_config_addr(struct pci_dn *pdn)
/**
* pseries_eeh_phb_reset - Reset the specified PHB
* @phb: PCI controller
- * @config_adddr: the associated config address
+ * @config_addr: the associated config address
* @option: reset option
*
* Reset the specified PHB/PE
@@ -188,7 +188,7 @@ static int pseries_eeh_phb_reset(struct pci_controller *phb, int config_addr, in
/**
* pseries_eeh_phb_configure_bridge - Configure PCI bridges in the indicated PE
* @phb: PCI controller
- * @config_adddr: the associated config address
+ * @config_addr: the associated config address
*
* The function will be called to reconfigure the bridges included
* in the specified PE so that the mulfunctional PE would be recovered
@@ -848,16 +848,7 @@ static int __init eeh_pseries_init(void)
}
/* Initialize error log size */
- eeh_error_buf_size = rtas_token("rtas-error-log-max");
- if (eeh_error_buf_size == RTAS_UNKNOWN_SERVICE) {
- pr_info("%s: unknown EEH error log size\n",
- __func__);
- eeh_error_buf_size = 1024;
- } else if (eeh_error_buf_size > RTAS_ERROR_LOG_MAX) {
- pr_info("%s: EEH error log size %d exceeds the maximal %d\n",
- __func__, eeh_error_buf_size, RTAS_ERROR_LOG_MAX);
- eeh_error_buf_size = RTAS_ERROR_LOG_MAX;
- }
+ eeh_error_buf_size = rtas_get_error_log_max();
/* Set EEH probe mode */
eeh_add_flag(EEH_PROBE_MODE_DEVTREE | EEH_ENABLE_IO_FOR_LOG);
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index e0a7ac5db15d9..090ae5a1e0f5e 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -70,6 +70,7 @@ static void pseries_cpu_offline_self(void)
xics_teardown_cpu();
unregister_slb_shadow(hwcpu);
+ unregister_vpa(hwcpu);
rtas_stop_self();
/* Should never get here... */
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 762eb15d3bd42..783c16ad648b8 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -27,7 +27,9 @@ hcall_tracepoint_refcount:
/*
* precall must preserve all registers. use unused STK_PARAM()
- * areas to save snapshots and opcode.
+ * areas to save snapshots and opcode. STK_PARAM() in the caller's
+ * frame will be available even on ELFv2 because these are all
+ * variadic functions.
*/
#define HCALL_INST_PRECALL(FIRST_REG) \
mflr r0; \
@@ -41,29 +43,29 @@ hcall_tracepoint_refcount:
std r10,STK_PARAM(R10)(r1); \
std r0,16(r1); \
addi r4,r1,STK_PARAM(FIRST_REG); \
- stdu r1,-STACK_FRAME_OVERHEAD(r1); \
+ stdu r1,-STACK_FRAME_MIN_SIZE(r1); \
bl __trace_hcall_entry; \
- ld r3,STACK_FRAME_OVERHEAD+STK_PARAM(R3)(r1); \
- ld r4,STACK_FRAME_OVERHEAD+STK_PARAM(R4)(r1); \
- ld r5,STACK_FRAME_OVERHEAD+STK_PARAM(R5)(r1); \
- ld r6,STACK_FRAME_OVERHEAD+STK_PARAM(R6)(r1); \
- ld r7,STACK_FRAME_OVERHEAD+STK_PARAM(R7)(r1); \
- ld r8,STACK_FRAME_OVERHEAD+STK_PARAM(R8)(r1); \
- ld r9,STACK_FRAME_OVERHEAD+STK_PARAM(R9)(r1); \
- ld r10,STACK_FRAME_OVERHEAD+STK_PARAM(R10)(r1)
+ ld r3,STACK_FRAME_MIN_SIZE+STK_PARAM(R3)(r1); \
+ ld r4,STACK_FRAME_MIN_SIZE+STK_PARAM(R4)(r1); \
+ ld r5,STACK_FRAME_MIN_SIZE+STK_PARAM(R5)(r1); \
+ ld r6,STACK_FRAME_MIN_SIZE+STK_PARAM(R6)(r1); \
+ ld r7,STACK_FRAME_MIN_SIZE+STK_PARAM(R7)(r1); \
+ ld r8,STACK_FRAME_MIN_SIZE+STK_PARAM(R8)(r1); \
+ ld r9,STACK_FRAME_MIN_SIZE+STK_PARAM(R9)(r1); \
+ ld r10,STACK_FRAME_MIN_SIZE+STK_PARAM(R10)(r1)
/*
* postcall is performed immediately before function return which
* allows liberal use of volatile registers.
*/
#define __HCALL_INST_POSTCALL \
- ld r0,STACK_FRAME_OVERHEAD+STK_PARAM(R3)(r1); \
- std r3,STACK_FRAME_OVERHEAD+STK_PARAM(R3)(r1); \
+ ld r0,STACK_FRAME_MIN_SIZE+STK_PARAM(R3)(r1); \
+ std r3,STACK_FRAME_MIN_SIZE+STK_PARAM(R3)(r1); \
mr r4,r3; \
mr r3,r0; \
bl __trace_hcall_exit; \
- ld r0,STACK_FRAME_OVERHEAD+16(r1); \
- addi r1,r1,STACK_FRAME_OVERHEAD; \
+ ld r0,STACK_FRAME_MIN_SIZE+16(r1); \
+ addi r1,r1,STACK_FRAME_MIN_SIZE; \
ld r3,STK_PARAM(R3)(r1); \
mtlr r0
@@ -303,14 +305,14 @@ plpar_hcall9_trace:
mr r7,r8
mr r8,r9
mr r9,r10
- ld r10,STACK_FRAME_OVERHEAD+STK_PARAM(R11)(r1)
- ld r11,STACK_FRAME_OVERHEAD+STK_PARAM(R12)(r1)
- ld r12,STACK_FRAME_OVERHEAD+STK_PARAM(R13)(r1)
+ ld r10,STACK_FRAME_MIN_SIZE+STK_PARAM(R11)(r1)
+ ld r11,STACK_FRAME_MIN_SIZE+STK_PARAM(R12)(r1)
+ ld r12,STACK_FRAME_MIN_SIZE+STK_PARAM(R13)(r1)
HVSC
mr r0,r12
- ld r12,STACK_FRAME_OVERHEAD+STK_PARAM(R4)(r1)
+ ld r12,STACK_FRAME_MIN_SIZE+STK_PARAM(R4)(r1)
std r4,0(r12)
std r5,8(r12)
std r6,16(r12)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 561adac690229..c74b71d4733d4 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -248,7 +248,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
* Set up the page with TCE data, looping through and setting
* the values.
*/
- limit = min_t(long, npages, 4096/TCE_ENTRY_SIZE);
+ limit = min_t(long, npages, 4096 / TCE_ENTRY_SIZE);
for (l = 0; l < limit; l++) {
tcep[l] = cpu_to_be64(proto_tce | rpn << tceshift);
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 634fac5db3f98..4cea71aa0f41d 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -635,10 +635,13 @@ retry:
prod_others();
}
/*
- * Execution may have been suspended for several seconds, so
- * reset the watchdog.
+ * Execution may have been suspended for several seconds, so reset
+ * the watchdogs. touch_nmi_watchdog() also touches the soft lockup
+ * watchdog.
*/
+ rcu_cpu_stall_reset();
touch_nmi_watchdog();
+
return ret;
}
diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c
index f4b5b5a64db3d..4edd1585e2457 100644
--- a/arch/powerpc/platforms/pseries/plpks.c
+++ b/arch/powerpc/platforms/pseries/plpks.c
@@ -75,7 +75,7 @@ static int pseries_status_to_err(int rc)
case H_FUNCTION:
err = -ENXIO;
break;
- case H_P1:
+ case H_PARAMETER:
case H_P2:
case H_P3:
case H_P4:
@@ -111,7 +111,7 @@ static int pseries_status_to_err(int rc)
err = -EEXIST;
break;
case H_ABORTED:
- err = -EINTR;
+ err = -EIO;
break;
default:
err = -EINVAL;
@@ -162,19 +162,15 @@ static struct plpks_auth *construct_auth(u8 consumer)
if (consumer > PKS_OS_OWNER)
return ERR_PTR(-EINVAL);
- auth = kmalloc(struct_size(auth, password, maxpwsize), GFP_KERNEL);
+ auth = kzalloc(struct_size(auth, password, maxpwsize), GFP_KERNEL);
if (!auth)
return ERR_PTR(-ENOMEM);
auth->version = 1;
auth->consumer = consumer;
- auth->rsvd0 = 0;
- auth->rsvd1 = 0;
- if (consumer == PKS_FW_OWNER || consumer == PKS_BOOTLOADER_OWNER) {
- auth->passwordlength = 0;
+ if (consumer == PKS_FW_OWNER || consumer == PKS_BOOTLOADER_OWNER)
return auth;
- }
memcpy(auth->password, ospassword, ospasswordlength);
@@ -312,10 +308,6 @@ int plpks_write_var(struct plpks_var var)
if (!rc)
rc = plpks_confirm_object_flushed(label, auth);
- if (rc)
- pr_err("Failed to write variable %s for component %s with error %d\n",
- var.name, var.component, rc);
-
rc = pseries_status_to_err(rc);
kfree(label);
out:
@@ -350,10 +342,6 @@ int plpks_remove_var(char *component, u8 varos, struct plpks_var_name vname)
if (!rc)
rc = plpks_confirm_object_flushed(label, auth);
- if (rc)
- pr_err("Failed to remove variable %s for component %s with error %d\n",
- vname.name, component, rc);
-
rc = pseries_status_to_err(rc);
kfree(label);
out:
@@ -366,22 +354,24 @@ static int plpks_read_var(u8 consumer, struct plpks_var *var)
{
unsigned long retbuf[PLPAR_HCALL_BUFSIZE] = { 0 };
struct plpks_auth *auth;
- struct label *label;
+ struct label *label = NULL;
u8 *output;
int rc;
if (var->namelen > MAX_NAME_SIZE)
return -EINVAL;
- auth = construct_auth(PKS_OS_OWNER);
+ auth = construct_auth(consumer);
if (IS_ERR(auth))
return PTR_ERR(auth);
- label = construct_label(var->component, var->os, var->name,
- var->namelen);
- if (IS_ERR(label)) {
- rc = PTR_ERR(label);
- goto out_free_auth;
+ if (consumer == PKS_OS_OWNER) {
+ label = construct_label(var->component, var->os, var->name,
+ var->namelen);
+ if (IS_ERR(label)) {
+ rc = PTR_ERR(label);
+ goto out_free_auth;
+ }
}
output = kzalloc(maxobjsize, GFP_KERNEL);
@@ -390,13 +380,17 @@ static int plpks_read_var(u8 consumer, struct plpks_var *var)
goto out_free_label;
}
- rc = plpar_hcall(H_PKS_READ_OBJECT, retbuf, virt_to_phys(auth),
- virt_to_phys(label), label->size, virt_to_phys(output),
- maxobjsize);
+ if (consumer == PKS_OS_OWNER)
+ rc = plpar_hcall(H_PKS_READ_OBJECT, retbuf, virt_to_phys(auth),
+ virt_to_phys(label), label->size, virt_to_phys(output),
+ maxobjsize);
+ else
+ rc = plpar_hcall(H_PKS_READ_OBJECT, retbuf, virt_to_phys(auth),
+ virt_to_phys(var->name), var->namelen, virt_to_phys(output),
+ maxobjsize);
+
if (rc != H_SUCCESS) {
- pr_err("Failed to read variable %s for component %s with error %d\n",
- var->name, var->component, rc);
rc = pseries_status_to_err(rc);
goto out_free_output;
}
diff --git a/arch/powerpc/platforms/pseries/plpks.h b/arch/powerpc/platforms/pseries/plpks.h
index c6a291367bb13..275ccd86bfb5e 100644
--- a/arch/powerpc/platforms/pseries/plpks.h
+++ b/arch/powerpc/platforms/pseries/plpks.h
@@ -17,7 +17,7 @@
#define WORLDREADABLE 0x08000000
#define SIGNEDUPDATE 0x01000000
-#define PLPKS_VAR_LINUX 0x01
+#define PLPKS_VAR_LINUX 0x02
#define PLPKS_VAR_COMMON 0x04
struct plpks_var {
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-06 19:06:03 +0000