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Diffstat (limited to 'arch/powerpc/kernel/sysfs.c')
-rw-r--r--arch/powerpc/kernel/sysfs.c750
1 files changed, 577 insertions, 173 deletions
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index c0d8c2006bf..67fd2fd2620 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -1,10 +1,10 @@
-#include <linux/sysdev.h>
+#include <linux/device.h>
#include <linux/cpu.h>
#include <linux/smp.h>
#include <linux/percpu.h>
#include <linux/init.h>
#include <linux/sched.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/nodemask.h>
#include <linux/cpumask.h>
#include <linux/notifier.h>
@@ -12,12 +12,12 @@
#include <asm/current.h>
#include <asm/processor.h>
#include <asm/cputable.h>
-#include <asm/firmware.h>
#include <asm/hvcall.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/smp.h>
#include <asm/pmc.h>
+#include <asm/firmware.h>
#include "cacheinfo.h"
@@ -37,12 +37,12 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
/* Time in microseconds we delay before sleeping in the idle loop */
DEFINE_PER_CPU(long, smt_snooze_delay) = { 100 };
-static ssize_t store_smt_snooze_delay(struct sys_device *dev,
- struct sysdev_attribute *attr,
+static ssize_t store_smt_snooze_delay(struct device *dev,
+ struct device_attribute *attr,
const char *buf,
size_t count)
{
- struct cpu *cpu = container_of(dev, struct cpu, sysdev);
+ struct cpu *cpu = container_of(dev, struct cpu, dev);
ssize_t ret;
long snooze;
@@ -50,21 +50,20 @@ static ssize_t store_smt_snooze_delay(struct sys_device *dev,
if (ret != 1)
return -EINVAL;
- per_cpu(smt_snooze_delay, cpu->sysdev.id) = snooze;
-
+ per_cpu(smt_snooze_delay, cpu->dev.id) = snooze;
return count;
}
-static ssize_t show_smt_snooze_delay(struct sys_device *dev,
- struct sysdev_attribute *attr,
+static ssize_t show_smt_snooze_delay(struct device *dev,
+ struct device_attribute *attr,
char *buf)
{
- struct cpu *cpu = container_of(dev, struct cpu, sysdev);
+ struct cpu *cpu = container_of(dev, struct cpu, dev);
- return sprintf(buf, "%ld\n", per_cpu(smt_snooze_delay, cpu->sysdev.id));
+ return sprintf(buf, "%ld\n", per_cpu(smt_snooze_delay, cpu->dev.id));
}
-static SYSDEV_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,
+static DEVICE_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,
store_smt_snooze_delay);
static int __init setup_smt_snooze_delay(char *str)
@@ -85,6 +84,304 @@ __setup("smt-snooze-delay=", setup_smt_snooze_delay);
#endif /* CONFIG_PPC64 */
+#ifdef CONFIG_PPC_FSL_BOOK3E
+#define MAX_BIT 63
+
+static u64 pw20_wt;
+static u64 altivec_idle_wt;
+
+static unsigned int get_idle_ticks_bit(u64 ns)
+{
+ u64 cycle;
+
+ if (ns >= 10000)
+ cycle = div_u64(ns + 500, 1000) * tb_ticks_per_usec;
+ else
+ cycle = div_u64(ns * tb_ticks_per_usec, 1000);
+
+ if (!cycle)
+ return 0;
+
+ return ilog2(cycle);
+}
+
+static void do_show_pwrmgtcr0(void *val)
+{
+ u32 *value = val;
+
+ *value = mfspr(SPRN_PWRMGTCR0);
+}
+
+static ssize_t show_pw20_state(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u32 value;
+ unsigned int cpu = dev->id;
+
+ smp_call_function_single(cpu, do_show_pwrmgtcr0, &value, 1);
+
+ value &= PWRMGTCR0_PW20_WAIT;
+
+ return sprintf(buf, "%u\n", value ? 1 : 0);
+}
+
+static void do_store_pw20_state(void *val)
+{
+ u32 *value = val;
+ u32 pw20_state;
+
+ pw20_state = mfspr(SPRN_PWRMGTCR0);
+
+ if (*value)
+ pw20_state |= PWRMGTCR0_PW20_WAIT;
+ else
+ pw20_state &= ~PWRMGTCR0_PW20_WAIT;
+
+ mtspr(SPRN_PWRMGTCR0, pw20_state);
+}
+
+static ssize_t store_pw20_state(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ u32 value;
+ unsigned int cpu = dev->id;
+
+ if (kstrtou32(buf, 0, &value))
+ return -EINVAL;
+
+ if (value > 1)
+ return -EINVAL;
+
+ smp_call_function_single(cpu, do_store_pw20_state, &value, 1);
+
+ return count;
+}
+
+static ssize_t show_pw20_wait_time(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u32 value;
+ u64 tb_cycle = 1;
+ u64 time;
+
+ unsigned int cpu = dev->id;
+
+ if (!pw20_wt) {
+ smp_call_function_single(cpu, do_show_pwrmgtcr0, &value, 1);
+ value = (value & PWRMGTCR0_PW20_ENT) >>
+ PWRMGTCR0_PW20_ENT_SHIFT;
+
+ tb_cycle = (tb_cycle << (MAX_BIT - value + 1));
+ /* convert ms to ns */
+ if (tb_ticks_per_usec > 1000) {
+ time = div_u64(tb_cycle, tb_ticks_per_usec / 1000);
+ } else {
+ u32 rem_us;
+
+ time = div_u64_rem(tb_cycle, tb_ticks_per_usec,
+ &rem_us);
+ time = time * 1000 + rem_us * 1000 / tb_ticks_per_usec;
+ }
+ } else {
+ time = pw20_wt;
+ }
+
+ return sprintf(buf, "%llu\n", time > 0 ? time : 0);
+}
+
+static void set_pw20_wait_entry_bit(void *val)
+{
+ u32 *value = val;
+ u32 pw20_idle;
+
+ pw20_idle = mfspr(SPRN_PWRMGTCR0);
+
+ /* Set Automatic PW20 Core Idle Count */
+ /* clear count */
+ pw20_idle &= ~PWRMGTCR0_PW20_ENT;
+
+ /* set count */
+ pw20_idle |= ((MAX_BIT - *value) << PWRMGTCR0_PW20_ENT_SHIFT);
+
+ mtspr(SPRN_PWRMGTCR0, pw20_idle);
+}
+
+static ssize_t store_pw20_wait_time(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ u32 entry_bit;
+ u64 value;
+
+ unsigned int cpu = dev->id;
+
+ if (kstrtou64(buf, 0, &value))
+ return -EINVAL;
+
+ if (!value)
+ return -EINVAL;
+
+ entry_bit = get_idle_ticks_bit(value);
+ if (entry_bit > MAX_BIT)
+ return -EINVAL;
+
+ pw20_wt = value;
+
+ smp_call_function_single(cpu, set_pw20_wait_entry_bit,
+ &entry_bit, 1);
+
+ return count;
+}
+
+static ssize_t show_altivec_idle(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u32 value;
+ unsigned int cpu = dev->id;
+
+ smp_call_function_single(cpu, do_show_pwrmgtcr0, &value, 1);
+
+ value &= PWRMGTCR0_AV_IDLE_PD_EN;
+
+ return sprintf(buf, "%u\n", value ? 1 : 0);
+}
+
+static void do_store_altivec_idle(void *val)
+{
+ u32 *value = val;
+ u32 altivec_idle;
+
+ altivec_idle = mfspr(SPRN_PWRMGTCR0);
+
+ if (*value)
+ altivec_idle |= PWRMGTCR0_AV_IDLE_PD_EN;
+ else
+ altivec_idle &= ~PWRMGTCR0_AV_IDLE_PD_EN;
+
+ mtspr(SPRN_PWRMGTCR0, altivec_idle);
+}
+
+static ssize_t store_altivec_idle(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ u32 value;
+ unsigned int cpu = dev->id;
+
+ if (kstrtou32(buf, 0, &value))
+ return -EINVAL;
+
+ if (value > 1)
+ return -EINVAL;
+
+ smp_call_function_single(cpu, do_store_altivec_idle, &value, 1);
+
+ return count;
+}
+
+static ssize_t show_altivec_idle_wait_time(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u32 value;
+ u64 tb_cycle = 1;
+ u64 time;
+
+ unsigned int cpu = dev->id;
+
+ if (!altivec_idle_wt) {
+ smp_call_function_single(cpu, do_show_pwrmgtcr0, &value, 1);
+ value = (value & PWRMGTCR0_AV_IDLE_CNT) >>
+ PWRMGTCR0_AV_IDLE_CNT_SHIFT;
+
+ tb_cycle = (tb_cycle << (MAX_BIT - value + 1));
+ /* convert ms to ns */
+ if (tb_ticks_per_usec > 1000) {
+ time = div_u64(tb_cycle, tb_ticks_per_usec / 1000);
+ } else {
+ u32 rem_us;
+
+ time = div_u64_rem(tb_cycle, tb_ticks_per_usec,
+ &rem_us);
+ time = time * 1000 + rem_us * 1000 / tb_ticks_per_usec;
+ }
+ } else {
+ time = altivec_idle_wt;
+ }
+
+ return sprintf(buf, "%llu\n", time > 0 ? time : 0);
+}
+
+static void set_altivec_idle_wait_entry_bit(void *val)
+{
+ u32 *value = val;
+ u32 altivec_idle;
+
+ altivec_idle = mfspr(SPRN_PWRMGTCR0);
+
+ /* Set Automatic AltiVec Idle Count */
+ /* clear count */
+ altivec_idle &= ~PWRMGTCR0_AV_IDLE_CNT;
+
+ /* set count */
+ altivec_idle |= ((MAX_BIT - *value) << PWRMGTCR0_AV_IDLE_CNT_SHIFT);
+
+ mtspr(SPRN_PWRMGTCR0, altivec_idle);
+}
+
+static ssize_t store_altivec_idle_wait_time(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ u32 entry_bit;
+ u64 value;
+
+ unsigned int cpu = dev->id;
+
+ if (kstrtou64(buf, 0, &value))
+ return -EINVAL;
+
+ if (!value)
+ return -EINVAL;
+
+ entry_bit = get_idle_ticks_bit(value);
+ if (entry_bit > MAX_BIT)
+ return -EINVAL;
+
+ altivec_idle_wt = value;
+
+ smp_call_function_single(cpu, set_altivec_idle_wait_entry_bit,
+ &entry_bit, 1);
+
+ return count;
+}
+
+/*
+ * Enable/Disable interface:
+ * 0, disable. 1, enable.
+ */
+static DEVICE_ATTR(pw20_state, 0600, show_pw20_state, store_pw20_state);
+static DEVICE_ATTR(altivec_idle, 0600, show_altivec_idle, store_altivec_idle);
+
+/*
+ * Set wait time interface:(Nanosecond)
+ * Example: Base on TBfreq is 41MHZ.
+ * 1~48(ns): TB[63]
+ * 49~97(ns): TB[62]
+ * 98~195(ns): TB[61]
+ * 196~390(ns): TB[60]
+ * 391~780(ns): TB[59]
+ * 781~1560(ns): TB[58]
+ * ...
+ */
+static DEVICE_ATTR(pw20_wait_time, 0600,
+ show_pw20_wait_time,
+ store_pw20_wait_time);
+static DEVICE_ATTR(altivec_idle_wait_time, 0600,
+ show_altivec_idle_wait_time,
+ store_altivec_idle_wait_time);
+#endif
+
/*
* Enabling PMCs will slow partition context switch times so we only do
* it the first time we write to the PMCs.
@@ -107,38 +404,49 @@ void ppc_enable_pmcs(void)
}
EXPORT_SYMBOL(ppc_enable_pmcs);
-#define SYSFS_PMCSETUP(NAME, ADDRESS) \
+#define __SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, EXTRA) \
static void read_##NAME(void *val) \
{ \
*(unsigned long *)val = mfspr(ADDRESS); \
} \
static void write_##NAME(void *val) \
{ \
- ppc_enable_pmcs(); \
+ EXTRA; \
mtspr(ADDRESS, *(unsigned long *)val); \
-} \
-static ssize_t show_##NAME(struct sys_device *dev, \
- struct sysdev_attribute *attr, \
+}
+
+#define __SYSFS_SPRSETUP_SHOW_STORE(NAME) \
+static ssize_t show_##NAME(struct device *dev, \
+ struct device_attribute *attr, \
char *buf) \
{ \
- struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
+ struct cpu *cpu = container_of(dev, struct cpu, dev); \
unsigned long val; \
- smp_call_function_single(cpu->sysdev.id, read_##NAME, &val, 1); \
+ smp_call_function_single(cpu->dev.id, read_##NAME, &val, 1); \
return sprintf(buf, "%lx\n", val); \
} \
static ssize_t __used \
- store_##NAME(struct sys_device *dev, struct sysdev_attribute *attr, \
+ store_##NAME(struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
- struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
+ struct cpu *cpu = container_of(dev, struct cpu, dev); \
unsigned long val; \
int ret = sscanf(buf, "%lx", &val); \
if (ret != 1) \
return -EINVAL; \
- smp_call_function_single(cpu->sysdev.id, write_##NAME, &val, 1); \
+ smp_call_function_single(cpu->dev.id, write_##NAME, &val, 1); \
return count; \
}
+#define SYSFS_PMCSETUP(NAME, ADDRESS) \
+ __SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, ppc_enable_pmcs()) \
+ __SYSFS_SPRSETUP_SHOW_STORE(NAME)
+#define SYSFS_SPRSETUP(NAME, ADDRESS) \
+ __SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, ) \
+ __SYSFS_SPRSETUP_SHOW_STORE(NAME)
+
+#define SYSFS_SPRSETUP_SHOW_STORE(NAME) \
+ __SYSFS_SPRSETUP_SHOW_STORE(NAME)
/* Let's define all possible registers, we'll only hook up the ones
* that are implemented on the current processor
@@ -174,14 +482,76 @@ SYSFS_PMCSETUP(pmc7, SPRN_PMC7);
SYSFS_PMCSETUP(pmc8, SPRN_PMC8);
SYSFS_PMCSETUP(mmcra, SPRN_MMCRA);
-SYSFS_PMCSETUP(purr, SPRN_PURR);
-SYSFS_PMCSETUP(spurr, SPRN_SPURR);
-SYSFS_PMCSETUP(dscr, SPRN_DSCR);
-
-static SYSDEV_ATTR(mmcra, 0600, show_mmcra, store_mmcra);
-static SYSDEV_ATTR(spurr, 0600, show_spurr, NULL);
-static SYSDEV_ATTR(dscr, 0600, show_dscr, store_dscr);
-static SYSDEV_ATTR(purr, 0600, show_purr, store_purr);
+SYSFS_SPRSETUP(purr, SPRN_PURR);
+SYSFS_SPRSETUP(spurr, SPRN_SPURR);
+SYSFS_SPRSETUP(pir, SPRN_PIR);
+
+/*
+ Lets only enable read for phyp resources and
+ enable write when needed with a separate function.
+ Lets be conservative and default to pseries.
+*/
+static DEVICE_ATTR(mmcra, 0600, show_mmcra, store_mmcra);
+static DEVICE_ATTR(spurr, 0400, show_spurr, NULL);
+static DEVICE_ATTR(purr, 0400, show_purr, store_purr);
+static DEVICE_ATTR(pir, 0400, show_pir, NULL);
+
+static unsigned long dscr_default;
+
+static void read_dscr(void *val)
+{
+ *(unsigned long *)val = get_paca()->dscr_default;
+}
+
+static void write_dscr(void *val)
+{
+ get_paca()->dscr_default = *(unsigned long *)val;
+ if (!current->thread.dscr_inherit) {
+ current->thread.dscr = *(unsigned long *)val;
+ mtspr(SPRN_DSCR, *(unsigned long *)val);
+ }
+}
+
+SYSFS_SPRSETUP_SHOW_STORE(dscr);
+static DEVICE_ATTR(dscr, 0600, show_dscr, store_dscr);
+
+static void add_write_permission_dev_attr(struct device_attribute *attr)
+{
+ attr->attr.mode |= 0200;
+}
+
+static ssize_t show_dscr_default(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%lx\n", dscr_default);
+}
+
+static ssize_t __used store_dscr_default(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ unsigned long val;
+ int ret = 0;
+
+ ret = sscanf(buf, "%lx", &val);
+ if (ret != 1)
+ return -EINVAL;
+ dscr_default = val;
+
+ on_each_cpu(write_dscr, &val, 1);
+
+ return count;
+}
+
+static DEVICE_ATTR(dscr_default, 0600,
+ show_dscr_default, store_dscr_default);
+
+static void sysfs_create_dscr_default(void)
+{
+ int err = 0;
+ if (cpu_has_feature(CPU_FTR_DSCR))
+ err = device_create_file(cpu_subsys.dev_root, &dev_attr_dscr_default);
+}
#endif /* CONFIG_PPC64 */
#ifdef HAS_PPC_PMC_PA6T
@@ -192,120 +562,119 @@ SYSFS_PMCSETUP(pa6t_pmc3, SPRN_PA6T_PMC3);
SYSFS_PMCSETUP(pa6t_pmc4, SPRN_PA6T_PMC4);
SYSFS_PMCSETUP(pa6t_pmc5, SPRN_PA6T_PMC5);
#ifdef CONFIG_DEBUG_KERNEL
-SYSFS_PMCSETUP(hid0, SPRN_HID0);
-SYSFS_PMCSETUP(hid1, SPRN_HID1);
-SYSFS_PMCSETUP(hid4, SPRN_HID4);
-SYSFS_PMCSETUP(hid5, SPRN_HID5);
-SYSFS_PMCSETUP(ima0, SPRN_PA6T_IMA0);
-SYSFS_PMCSETUP(ima1, SPRN_PA6T_IMA1);
-SYSFS_PMCSETUP(ima2, SPRN_PA6T_IMA2);
-SYSFS_PMCSETUP(ima3, SPRN_PA6T_IMA3);
-SYSFS_PMCSETUP(ima4, SPRN_PA6T_IMA4);
-SYSFS_PMCSETUP(ima5, SPRN_PA6T_IMA5);
-SYSFS_PMCSETUP(ima6, SPRN_PA6T_IMA6);
-SYSFS_PMCSETUP(ima7, SPRN_PA6T_IMA7);
-SYSFS_PMCSETUP(ima8, SPRN_PA6T_IMA8);
-SYSFS_PMCSETUP(ima9, SPRN_PA6T_IMA9);
-SYSFS_PMCSETUP(imaat, SPRN_PA6T_IMAAT);
-SYSFS_PMCSETUP(btcr, SPRN_PA6T_BTCR);
-SYSFS_PMCSETUP(pccr, SPRN_PA6T_PCCR);
-SYSFS_PMCSETUP(rpccr, SPRN_PA6T_RPCCR);
-SYSFS_PMCSETUP(der, SPRN_PA6T_DER);
-SYSFS_PMCSETUP(mer, SPRN_PA6T_MER);
-SYSFS_PMCSETUP(ber, SPRN_PA6T_BER);
-SYSFS_PMCSETUP(ier, SPRN_PA6T_IER);
-SYSFS_PMCSETUP(sier, SPRN_PA6T_SIER);
-SYSFS_PMCSETUP(siar, SPRN_PA6T_SIAR);
-SYSFS_PMCSETUP(tsr0, SPRN_PA6T_TSR0);
-SYSFS_PMCSETUP(tsr1, SPRN_PA6T_TSR1);
-SYSFS_PMCSETUP(tsr2, SPRN_PA6T_TSR2);
-SYSFS_PMCSETUP(tsr3, SPRN_PA6T_TSR3);
+SYSFS_SPRSETUP(hid0, SPRN_HID0);
+SYSFS_SPRSETUP(hid1, SPRN_HID1);
+SYSFS_SPRSETUP(hid4, SPRN_HID4);
+SYSFS_SPRSETUP(hid5, SPRN_HID5);
+SYSFS_SPRSETUP(ima0, SPRN_PA6T_IMA0);
+SYSFS_SPRSETUP(ima1, SPRN_PA6T_IMA1);
+SYSFS_SPRSETUP(ima2, SPRN_PA6T_IMA2);
+SYSFS_SPRSETUP(ima3, SPRN_PA6T_IMA3);
+SYSFS_SPRSETUP(ima4, SPRN_PA6T_IMA4);
+SYSFS_SPRSETUP(ima5, SPRN_PA6T_IMA5);
+SYSFS_SPRSETUP(ima6, SPRN_PA6T_IMA6);
+SYSFS_SPRSETUP(ima7, SPRN_PA6T_IMA7);
+SYSFS_SPRSETUP(ima8, SPRN_PA6T_IMA8);
+SYSFS_SPRSETUP(ima9, SPRN_PA6T_IMA9);
+SYSFS_SPRSETUP(imaat, SPRN_PA6T_IMAAT);
+SYSFS_SPRSETUP(btcr, SPRN_PA6T_BTCR);
+SYSFS_SPRSETUP(pccr, SPRN_PA6T_PCCR);
+SYSFS_SPRSETUP(rpccr, SPRN_PA6T_RPCCR);
+SYSFS_SPRSETUP(der, SPRN_PA6T_DER);
+SYSFS_SPRSETUP(mer, SPRN_PA6T_MER);
+SYSFS_SPRSETUP(ber, SPRN_PA6T_BER);
+SYSFS_SPRSETUP(ier, SPRN_PA6T_IER);
+SYSFS_SPRSETUP(sier, SPRN_PA6T_SIER);
+SYSFS_SPRSETUP(siar, SPRN_PA6T_SIAR);
+SYSFS_SPRSETUP(tsr0, SPRN_PA6T_TSR0);
+SYSFS_SPRSETUP(tsr1, SPRN_PA6T_TSR1);
+SYSFS_SPRSETUP(tsr2, SPRN_PA6T_TSR2);
+SYSFS_SPRSETUP(tsr3, SPRN_PA6T_TSR3);
#endif /* CONFIG_DEBUG_KERNEL */
#endif /* HAS_PPC_PMC_PA6T */
#ifdef HAS_PPC_PMC_IBM
-static struct sysdev_attribute ibm_common_attrs[] = {
- _SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0),
- _SYSDEV_ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1),
+static struct device_attribute ibm_common_attrs[] = {
+ __ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0),
+ __ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1),
};
#endif /* HAS_PPC_PMC_G4 */
#ifdef HAS_PPC_PMC_G4
-static struct sysdev_attribute g4_common_attrs[] = {
- _SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0),
- _SYSDEV_ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1),
- _SYSDEV_ATTR(mmcr2, 0600, show_mmcr2, store_mmcr2),
+static struct device_attribute g4_common_attrs[] = {
+ __ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0),
+ __ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1),
+ __ATTR(mmcr2, 0600, show_mmcr2, store_mmcr2),
};
#endif /* HAS_PPC_PMC_G4 */
-static struct sysdev_attribute classic_pmc_attrs[] = {
- _SYSDEV_ATTR(pmc1, 0600, show_pmc1, store_pmc1),
- _SYSDEV_ATTR(pmc2, 0600, show_pmc2, store_pmc2),
- _SYSDEV_ATTR(pmc3, 0600, show_pmc3, store_pmc3),
- _SYSDEV_ATTR(pmc4, 0600, show_pmc4, store_pmc4),
- _SYSDEV_ATTR(pmc5, 0600, show_pmc5, store_pmc5),
- _SYSDEV_ATTR(pmc6, 0600, show_pmc6, store_pmc6),
+static struct device_attribute classic_pmc_attrs[] = {
+ __ATTR(pmc1, 0600, show_pmc1, store_pmc1),
+ __ATTR(pmc2, 0600, show_pmc2, store_pmc2),
+ __ATTR(pmc3, 0600, show_pmc3, store_pmc3),
+ __ATTR(pmc4, 0600, show_pmc4, store_pmc4),
+ __ATTR(pmc5, 0600, show_pmc5, store_pmc5),
+ __ATTR(pmc6, 0600, show_pmc6, store_pmc6),
#ifdef CONFIG_PPC64
- _SYSDEV_ATTR(pmc7, 0600, show_pmc7, store_pmc7),
- _SYSDEV_ATTR(pmc8, 0600, show_pmc8, store_pmc8),
+ __ATTR(pmc7, 0600, show_pmc7, store_pmc7),
+ __ATTR(pmc8, 0600, show_pmc8, store_pmc8),
#endif
};
#ifdef HAS_PPC_PMC_PA6T
-static struct sysdev_attribute pa6t_attrs[] = {
- _SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0),
- _SYSDEV_ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1),
- _SYSDEV_ATTR(pmc0, 0600, show_pa6t_pmc0, store_pa6t_pmc0),
- _SYSDEV_ATTR(pmc1, 0600, show_pa6t_pmc1, store_pa6t_pmc1),
- _SYSDEV_ATTR(pmc2, 0600, show_pa6t_pmc2, store_pa6t_pmc2),
- _SYSDEV_ATTR(pmc3, 0600, show_pa6t_pmc3, store_pa6t_pmc3),
- _SYSDEV_ATTR(pmc4, 0600, show_pa6t_pmc4, store_pa6t_pmc4),
- _SYSDEV_ATTR(pmc5, 0600, show_pa6t_pmc5, store_pa6t_pmc5),
+static struct device_attribute pa6t_attrs[] = {
+ __ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0),
+ __ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1),
+ __ATTR(pmc0, 0600, show_pa6t_pmc0, store_pa6t_pmc0),
+ __ATTR(pmc1, 0600, show_pa6t_pmc1, store_pa6t_pmc1),
+ __ATTR(pmc2, 0600, show_pa6t_pmc2, store_pa6t_pmc2),
+ __ATTR(pmc3, 0600, show_pa6t_pmc3, store_pa6t_pmc3),
+ __ATTR(pmc4, 0600, show_pa6t_pmc4, store_pa6t_pmc4),
+ __ATTR(pmc5, 0600, show_pa6t_pmc5, store_pa6t_pmc5),
#ifdef CONFIG_DEBUG_KERNEL
- _SYSDEV_ATTR(hid0, 0600, show_hid0, store_hid0),
- _SYSDEV_ATTR(hid1, 0600, show_hid1, store_hid1),
- _SYSDEV_ATTR(hid4, 0600, show_hid4, store_hid4),
- _SYSDEV_ATTR(hid5, 0600, show_hid5, store_hid5),
- _SYSDEV_ATTR(ima0, 0600, show_ima0, store_ima0),
- _SYSDEV_ATTR(ima1, 0600, show_ima1, store_ima1),
- _SYSDEV_ATTR(ima2, 0600, show_ima2, store_ima2),
- _SYSDEV_ATTR(ima3, 0600, show_ima3, store_ima3),
- _SYSDEV_ATTR(ima4, 0600, show_ima4, store_ima4),
- _SYSDEV_ATTR(ima5, 0600, show_ima5, store_ima5),
- _SYSDEV_ATTR(ima6, 0600, show_ima6, store_ima6),
- _SYSDEV_ATTR(ima7, 0600, show_ima7, store_ima7),
- _SYSDEV_ATTR(ima8, 0600, show_ima8, store_ima8),
- _SYSDEV_ATTR(ima9, 0600, show_ima9, store_ima9),
- _SYSDEV_ATTR(imaat, 0600, show_imaat, store_imaat),
- _SYSDEV_ATTR(btcr, 0600, show_btcr, store_btcr),
- _SYSDEV_ATTR(pccr, 0600, show_pccr, store_pccr),
- _SYSDEV_ATTR(rpccr, 0600, show_rpccr, store_rpccr),
- _SYSDEV_ATTR(der, 0600, show_der, store_der),
- _SYSDEV_ATTR(mer, 0600, show_mer, store_mer),
- _SYSDEV_ATTR(ber, 0600, show_ber, store_ber),
- _SYSDEV_ATTR(ier, 0600, show_ier, store_ier),
- _SYSDEV_ATTR(sier, 0600, show_sier, store_sier),
- _SYSDEV_ATTR(siar, 0600, show_siar, store_siar),
- _SYSDEV_ATTR(tsr0, 0600, show_tsr0, store_tsr0),
- _SYSDEV_ATTR(tsr1, 0600, show_tsr1, store_tsr1),
- _SYSDEV_ATTR(tsr2, 0600, show_tsr2, store_tsr2),
- _SYSDEV_ATTR(tsr3, 0600, show_tsr3, store_tsr3),
+ __ATTR(hid0, 0600, show_hid0, store_hid0),
+ __ATTR(hid1, 0600, show_hid1, store_hid1),
+ __ATTR(hid4, 0600, show_hid4, store_hid4),
+ __ATTR(hid5, 0600, show_hid5, store_hid5),
+ __ATTR(ima0, 0600, show_ima0, store_ima0),
+ __ATTR(ima1, 0600, show_ima1, store_ima1),
+ __ATTR(ima2, 0600, show_ima2, store_ima2),
+ __ATTR(ima3, 0600, show_ima3, store_ima3),
+ __ATTR(ima4, 0600, show_ima4, store_ima4),
+ __ATTR(ima5, 0600, show_ima5, store_ima5),
+ __ATTR(ima6, 0600, show_ima6, store_ima6),
+ __ATTR(ima7, 0600, show_ima7, store_ima7),
+ __ATTR(ima8, 0600, show_ima8, store_ima8),
+ __ATTR(ima9, 0600, show_ima9, store_ima9),
+ __ATTR(imaat, 0600, show_imaat, store_imaat),
+ __ATTR(btcr, 0600, show_btcr, store_btcr),
+ __ATTR(pccr, 0600, show_pccr, store_pccr),
+ __ATTR(rpccr, 0600, show_rpccr, store_rpccr),
+ __ATTR(der, 0600, show_der, store_der),
+ __ATTR(mer, 0600, show_mer, store_mer),
+ __ATTR(ber, 0600, show_ber, store_ber),
+ __ATTR(ier, 0600, show_ier, store_ier),
+ __ATTR(sier, 0600, show_sier, store_sier),
+ __ATTR(siar, 0600, show_siar, store_siar),
+ __ATTR(tsr0, 0600, show_tsr0, store_tsr0),
+ __ATTR(tsr1, 0600, show_tsr1, store_tsr1),
+ __ATTR(tsr2, 0600, show_tsr2, store_tsr2),
+ __ATTR(tsr3, 0600, show_tsr3, store_tsr3),
#endif /* CONFIG_DEBUG_KERNEL */
};
#endif /* HAS_PPC_PMC_PA6T */
#endif /* HAS_PPC_PMC_CLASSIC */
-static void __cpuinit register_cpu_online(unsigned int cpu)
+static void register_cpu_online(unsigned int cpu)
{
struct cpu *c = &per_cpu(cpu_devices, cpu);
- struct sys_device *s = &c->sysdev;
- struct sysdev_attribute *attrs, *pmc_attrs;
+ struct device *s = &c->dev;
+ struct device_attribute *attrs, *pmc_attrs;
int i, nattrs;
#ifdef CONFIG_PPC64
- if (!firmware_has_feature(FW_FEATURE_ISERIES) &&
- cpu_has_feature(CPU_FTR_SMT))
- sysdev_create_file(s, &attr_smt_snooze_delay);
+ if (cpu_has_feature(CPU_FTR_SMT))
+ device_create_file(s, &dev_attr_smt_snooze_delay);
#endif
/* PMC stuff */
@@ -313,14 +682,14 @@ static void __cpuinit register_cpu_online(unsigned int cpu)
#ifdef HAS_PPC_PMC_IBM
case PPC_PMC_IBM:
attrs = ibm_common_attrs;
- nattrs = sizeof(ibm_common_attrs) / sizeof(struct sysdev_attribute);
+ nattrs = sizeof(ibm_common_attrs) / sizeof(struct device_attribute);
pmc_attrs = classic_pmc_attrs;
break;
#endif /* HAS_PPC_PMC_IBM */
#ifdef HAS_PPC_PMC_G4
case PPC_PMC_G4:
attrs = g4_common_attrs;
- nattrs = sizeof(g4_common_attrs) / sizeof(struct sysdev_attribute);
+ nattrs = sizeof(g4_common_attrs) / sizeof(struct device_attribute);
pmc_attrs = classic_pmc_attrs;
break;
#endif /* HAS_PPC_PMC_G4 */
@@ -328,7 +697,7 @@ static void __cpuinit register_cpu_online(unsigned int cpu)
case PPC_PMC_PA6T:
/* PA Semi starts counting at PMC0 */
attrs = pa6t_attrs;
- nattrs = sizeof(pa6t_attrs) / sizeof(struct sysdev_attribute);
+ nattrs = sizeof(pa6t_attrs) / sizeof(struct device_attribute);
pmc_attrs = NULL;
break;
#endif /* HAS_PPC_PMC_PA6T */
@@ -339,26 +708,41 @@ static void __cpuinit register_cpu_online(unsigned int cpu)
}
for (i = 0; i < nattrs; i++)
- sysdev_create_file(s, &attrs[i]);
+ device_create_file(s, &attrs[i]);
if (pmc_attrs)
for (i = 0; i < cur_cpu_spec->num_pmcs; i++)
- sysdev_create_file(s, &pmc_attrs[i]);
+ device_create_file(s, &pmc_attrs[i]);
#ifdef CONFIG_PPC64
if (cpu_has_feature(CPU_FTR_MMCRA))
- sysdev_create_file(s, &attr_mmcra);
+ device_create_file(s, &dev_attr_mmcra);
- if (cpu_has_feature(CPU_FTR_PURR))
- sysdev_create_file(s, &attr_purr);
+ if (cpu_has_feature(CPU_FTR_PURR)) {
+ if (!firmware_has_feature(FW_FEATURE_LPAR))
+ add_write_permission_dev_attr(&dev_attr_purr);
+ device_create_file(s, &dev_attr_purr);
+ }
if (cpu_has_feature(CPU_FTR_SPURR))
- sysdev_create_file(s, &attr_spurr);
+ device_create_file(s, &dev_attr_spurr);
if (cpu_has_feature(CPU_FTR_DSCR))
- sysdev_create_file(s, &attr_dscr);
+ device_create_file(s, &dev_attr_dscr);
+
+ if (cpu_has_feature(CPU_FTR_PPCAS_ARCH_V2))
+ device_create_file(s, &dev_attr_pir);
#endif /* CONFIG_PPC64 */
+#ifdef CONFIG_PPC_FSL_BOOK3E
+ if (PVR_VER(cur_cpu_spec->pvr_value) == PVR_VER_E6500) {
+ device_create_file(s, &dev_attr_pw20_state);
+ device_create_file(s, &dev_attr_pw20_wait_time);
+
+ device_create_file(s, &dev_attr_altivec_idle);
+ device_create_file(s, &dev_attr_altivec_idle_wait_time);
+ }
+#endif
cacheinfo_cpu_online(cpu);
}
@@ -366,16 +750,15 @@ static void __cpuinit register_cpu_online(unsigned int cpu)
static void unregister_cpu_online(unsigned int cpu)
{
struct cpu *c = &per_cpu(cpu_devices, cpu);
- struct sys_device *s = &c->sysdev;
- struct sysdev_attribute *attrs, *pmc_attrs;
+ struct device *s = &c->dev;
+ struct device_attribute *attrs, *pmc_attrs;
int i, nattrs;
BUG_ON(!c->hotpluggable);
#ifdef CONFIG_PPC64
- if (!firmware_has_feature(FW_FEATURE_ISERIES) &&
- cpu_has_feature(CPU_FTR_SMT))
- sysdev_remove_file(s, &attr_smt_snooze_delay);
+ if (cpu_has_feature(CPU_FTR_SMT))
+ device_remove_file(s, &dev_attr_smt_snooze_delay);
#endif
/* PMC stuff */
@@ -383,14 +766,14 @@ static void unregister_cpu_online(unsigned int cpu)
#ifdef HAS_PPC_PMC_IBM
case PPC_PMC_IBM:
attrs = ibm_common_attrs;
- nattrs = sizeof(ibm_common_attrs) / sizeof(struct sysdev_attribute);
+ nattrs = sizeof(ibm_common_attrs) / sizeof(struct device_attribute);
pmc_attrs = classic_pmc_attrs;
break;
#endif /* HAS_PPC_PMC_IBM */
#ifdef HAS_PPC_PMC_G4
case PPC_PMC_G4:
attrs = g4_common_attrs;
- nattrs = sizeof(g4_common_attrs) / sizeof(struct sysdev_attribute);
+ nattrs = sizeof(g4_common_attrs) / sizeof(struct device_attribute);
pmc_attrs = classic_pmc_attrs;
break;
#endif /* HAS_PPC_PMC_G4 */
@@ -398,7 +781,7 @@ static void unregister_cpu_online(unsigned int cpu)
case PPC_PMC_PA6T:
/* PA Semi starts counting at PMC0 */
attrs = pa6t_attrs;
- nattrs = sizeof(pa6t_attrs) / sizeof(struct sysdev_attribute);
+ nattrs = sizeof(pa6t_attrs) / sizeof(struct device_attribute);
pmc_attrs = NULL;
break;
#endif /* HAS_PPC_PMC_PA6T */
@@ -409,26 +792,38 @@ static void unregister_cpu_online(unsigned int cpu)
}
for (i = 0; i < nattrs; i++)
- sysdev_remove_file(s, &attrs[i]);
+ device_remove_file(s, &attrs[i]);
if (pmc_attrs)
for (i = 0; i < cur_cpu_spec->num_pmcs; i++)
- sysdev_remove_file(s, &pmc_attrs[i]);
+ device_remove_file(s, &pmc_attrs[i]);
#ifdef CONFIG_PPC64
if (cpu_has_feature(CPU_FTR_MMCRA))
- sysdev_remove_file(s, &attr_mmcra);
+ device_remove_file(s, &dev_attr_mmcra);
if (cpu_has_feature(CPU_FTR_PURR))
- sysdev_remove_file(s, &attr_purr);
+ device_remove_file(s, &dev_attr_purr);
if (cpu_has_feature(CPU_FTR_SPURR))
- sysdev_remove_file(s, &attr_spurr);
+ device_remove_file(s, &dev_attr_spurr);
if (cpu_has_feature(CPU_FTR_DSCR))
- sysdev_remove_file(s, &attr_dscr);
+ device_remove_file(s, &dev_attr_dscr);
+
+ if (cpu_has_feature(CPU_FTR_PPCAS_ARCH_V2))
+ device_remove_file(s, &dev_attr_pir);
#endif /* CONFIG_PPC64 */
+#ifdef CONFIG_PPC_FSL_BOOK3E
+ if (PVR_VER(cur_cpu_spec->pvr_value) == PVR_VER_E6500) {
+ device_remove_file(s, &dev_attr_pw20_state);
+ device_remove_file(s, &dev_attr_pw20_wait_time);
+
+ device_remove_file(s, &dev_attr_altivec_idle);
+ device_remove_file(s, &dev_attr_altivec_idle_wait_time);
+ }
+#endif
cacheinfo_cpu_offline(cpu);
}
@@ -452,7 +847,7 @@ ssize_t arch_cpu_release(const char *buf, size_t count)
#endif /* CONFIG_HOTPLUG_CPU */
-static int __cpuinit sysfs_cpu_notify(struct notifier_block *self,
+static int sysfs_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned int)(long)hcpu;
@@ -472,76 +867,76 @@ static int __cpuinit sysfs_cpu_notify(struct notifier_block *self,
return NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata sysfs_cpu_nb = {
+static struct notifier_block sysfs_cpu_nb = {
.notifier_call = sysfs_cpu_notify,
};
static DEFINE_MUTEX(cpu_mutex);
-int cpu_add_sysdev_attr(struct sysdev_attribute *attr)
+int cpu_add_dev_attr(struct device_attribute *attr)
{
int cpu;
mutex_lock(&cpu_mutex);
for_each_possible_cpu(cpu) {
- sysdev_create_file(get_cpu_sysdev(cpu), attr);
+ device_create_file(get_cpu_device(cpu), attr);
}
mutex_unlock(&cpu_mutex);
return 0;
}
-EXPORT_SYMBOL_GPL(cpu_add_sysdev_attr);
+EXPORT_SYMBOL_GPL(cpu_add_dev_attr);
-int cpu_add_sysdev_attr_group(struct attribute_group *attrs)
+int cpu_add_dev_attr_group(struct attribute_group *attrs)
{
int cpu;
- struct sys_device *sysdev;
+ struct device *dev;
int ret;
mutex_lock(&cpu_mutex);
for_each_possible_cpu(cpu) {
- sysdev = get_cpu_sysdev(cpu);
- ret = sysfs_create_group(&sysdev->kobj, attrs);
+ dev = get_cpu_device(cpu);
+ ret = sysfs_create_group(&dev->kobj, attrs);
WARN_ON(ret != 0);
}
mutex_unlock(&cpu_mutex);
return 0;
}
-EXPORT_SYMBOL_GPL(cpu_add_sysdev_attr_group);
+EXPORT_SYMBOL_GPL(cpu_add_dev_attr_group);
-void cpu_remove_sysdev_attr(struct sysdev_attribute *attr)
+void cpu_remove_dev_attr(struct device_attribute *attr)
{
int cpu;
mutex_lock(&cpu_mutex);
for_each_possible_cpu(cpu) {
- sysdev_remove_file(get_cpu_sysdev(cpu), attr);
+ device_remove_file(get_cpu_device(cpu), attr);
}
mutex_unlock(&cpu_mutex);
}
-EXPORT_SYMBOL_GPL(cpu_remove_sysdev_attr);
+EXPORT_SYMBOL_GPL(cpu_remove_dev_attr);
-void cpu_remove_sysdev_attr_group(struct attribute_group *attrs)
+void cpu_remove_dev_attr_group(struct attribute_group *attrs)
{
int cpu;
- struct sys_device *sysdev;
+ struct device *dev;
mutex_lock(&cpu_mutex);
for_each_possible_cpu(cpu) {
- sysdev = get_cpu_sysdev(cpu);
- sysfs_remove_group(&sysdev->kobj, attrs);
+ dev = get_cpu_device(cpu);
+ sysfs_remove_group(&dev->kobj, attrs);
}
mutex_unlock(&cpu_mutex);
}
-EXPORT_SYMBOL_GPL(cpu_remove_sysdev_attr_group);
+EXPORT_SYMBOL_GPL(cpu_remove_dev_attr_group);
/* NUMA stuff */
@@ -555,18 +950,18 @@ static void register_nodes(void)
register_one_node(i);
}
-int sysfs_add_device_to_node(struct sys_device *dev, int nid)
+int sysfs_add_device_to_node(struct device *dev, int nid)
{
- struct node *node = &node_devices[nid];
- return sysfs_create_link(&node->sysdev.kobj, &dev->kobj,
+ struct node *node = node_devices[nid];
+ return sysfs_create_link(&node->dev.kobj, &dev->kobj,
kobject_name(&dev->kobj));
}
EXPORT_SYMBOL_GPL(sysfs_add_device_to_node);
-void sysfs_remove_device_from_node(struct sys_device *dev, int nid)
+void sysfs_remove_device_from_node(struct device *dev, int nid)
{
- struct node *node = &node_devices[nid];
- sysfs_remove_link(&node->sysdev.kobj, kobject_name(&dev->kobj));
+ struct node *node = node_devices[nid];
+ sysfs_remove_link(&node->dev.kobj, kobject_name(&dev->kobj));
}
EXPORT_SYMBOL_GPL(sysfs_remove_device_from_node);
@@ -579,21 +974,22 @@ static void register_nodes(void)
#endif
/* Only valid if CPU is present. */
-static ssize_t show_physical_id(struct sys_device *dev,
- struct sysdev_attribute *attr, char *buf)
+static ssize_t show_physical_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct cpu *cpu = container_of(dev, struct cpu, sysdev);
+ struct cpu *cpu = container_of(dev, struct cpu, dev);
- return sprintf(buf, "%d\n", get_hard_smp_processor_id(cpu->sysdev.id));
+ return sprintf(buf, "%d\n", get_hard_smp_processor_id(cpu->dev.id));
}
-static SYSDEV_ATTR(physical_id, 0444, show_physical_id, NULL);
+static DEVICE_ATTR(physical_id, 0444, show_physical_id, NULL);
static int __init topology_init(void)
{
int cpu;
register_nodes();
- register_cpu_notifier(&sysfs_cpu_nb);
+
+ cpu_notifier_register_begin();
for_each_possible_cpu(cpu) {
struct cpu *c = &per_cpu(cpu_devices, cpu);
@@ -611,13 +1007,21 @@ static int __init topology_init(void)
if (cpu_online(cpu) || c->hotpluggable) {
register_cpu(c, cpu);
- sysdev_create_file(&c->sysdev, &attr_physical_id);
+ device_create_file(&c->dev, &dev_attr_physical_id);
}
if (cpu_online(cpu))
register_cpu_online(cpu);
}
+ __register_cpu_notifier(&sysfs_cpu_nb);
+
+ cpu_notifier_register_done();
+
+#ifdef CONFIG_PPC64
+ sysfs_create_dscr_default();
+#endif /* CONFIG_PPC64 */
+
return 0;
}
subsys_initcall(topology_init);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 16:29:21 +0000