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-rw-r--r--drivers/base/cpu.c7
-rw-r--r--drivers/char/random.c8
-rw-r--r--drivers/clocksource/acpi_pm.c2
-rw-r--r--drivers/clocksource/i8253.c6
-rw-r--r--drivers/clocksource/tcb_clksrc.c4
-rw-r--r--drivers/cpufreq/cpufreq_conservative.c50
-rw-r--r--drivers/cpufreq/cpufreq_ondemand.c54
-rw-r--r--drivers/cpufreq/cpufreq_stats.c5
-rw-r--r--drivers/edac/i7core_edac.c4
-rw-r--r--drivers/edac/mce_amd.c4
-rw-r--r--drivers/edac/sb_edac.c8
-rw-r--r--drivers/hwmon/coretemp.c7
-rw-r--r--drivers/iommu/intel-iommu.c25
-rw-r--r--drivers/lguest/x86/core.c2
-rw-r--r--drivers/macintosh/rack-meter.c14
-rw-r--r--drivers/oprofile/nmi_timer_int.c173
-rw-r--r--drivers/oprofile/oprof.c30
-rw-r--r--drivers/oprofile/oprof.h10
-rw-r--r--drivers/oprofile/timer_int.c30
-rw-r--r--drivers/pci/Kconfig4
-rw-r--r--drivers/pci/ioapic.c15
21 files changed, 314 insertions, 148 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 251acea3d359..3991502b21e5 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -247,6 +247,13 @@ struct sys_device *get_cpu_sysdev(unsigned cpu)
}
EXPORT_SYMBOL_GPL(get_cpu_sysdev);
+bool cpu_is_hotpluggable(unsigned cpu)
+{
+ struct sys_device *dev = get_cpu_sysdev(cpu);
+ return dev && container_of(dev, struct cpu, sysdev)->hotpluggable;
+}
+EXPORT_SYMBOL_GPL(cpu_is_hotpluggable);
+
int __init cpu_dev_init(void)
{
int err;
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 6035ab8d5ef7..85da8740586b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -624,8 +624,8 @@ static struct timer_rand_state input_timer_state;
static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
{
struct {
- cycles_t cycles;
long jiffies;
+ unsigned cycles;
unsigned num;
} sample;
long delta, delta2, delta3;
@@ -637,7 +637,11 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
goto out;
sample.jiffies = jiffies;
- sample.cycles = get_cycles();
+
+ /* Use arch random value, fall back to cycles */
+ if (!arch_get_random_int(&sample.cycles))
+ sample.cycles = get_cycles();
+
sample.num = num;
mix_pool_bytes(&input_pool, &sample, sizeof(sample));
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index effe7974aa9a..6b5cf02c35c8 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -143,7 +143,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_LE,
#ifndef CONFIG_X86_64
#include <asm/mach_timer.h>
#define PMTMR_EXPECTED_RATE \
- ((CALIBRATE_LATCH * (PMTMR_TICKS_PER_SEC >> 10)) / (CLOCK_TICK_RATE>>10))
+ ((CALIBRATE_LATCH * (PMTMR_TICKS_PER_SEC >> 10)) / (PIT_TICK_RATE>>10))
/*
* Some boards have the PMTMR running way too fast. We check
* the PMTMR rate against PIT channel 2 to catch these cases.
diff --git a/drivers/clocksource/i8253.c b/drivers/clocksource/i8253.c
index 27c49e60b7d6..e7cab2da910f 100644
--- a/drivers/clocksource/i8253.c
+++ b/drivers/clocksource/i8253.c
@@ -53,7 +53,7 @@ static cycle_t i8253_read(struct clocksource *cs)
count |= inb_p(PIT_CH0) << 8;
/* VIA686a test code... reset the latch if count > max + 1 */
- if (count > LATCH) {
+ if (count > PIT_LATCH) {
outb_p(0x34, PIT_MODE);
outb_p(PIT_LATCH & 0xff, PIT_CH0);
outb_p(PIT_LATCH >> 8, PIT_CH0);
@@ -114,8 +114,8 @@ static void init_pit_timer(enum clock_event_mode mode,
case CLOCK_EVT_MODE_PERIODIC:
/* binary, mode 2, LSB/MSB, ch 0 */
outb_p(0x34, PIT_MODE);
- outb_p(LATCH & 0xff , PIT_CH0); /* LSB */
- outb_p(LATCH >> 8 , PIT_CH0); /* MSB */
+ outb_p(PIT_LATCH & 0xff , PIT_CH0); /* LSB */
+ outb_p(PIT_LATCH >> 8 , PIT_CH0); /* MSB */
break;
case CLOCK_EVT_MODE_SHUTDOWN:
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 79c47e88d5d1..55d0f95f82f9 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -59,7 +59,6 @@ static struct clocksource clksrc = {
.rating = 200,
.read = tc_get_cycles,
.mask = CLOCKSOURCE_MASK(32),
- .shift = 18,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
@@ -256,7 +255,6 @@ static int __init tcb_clksrc_init(void)
best_divisor_idx = i;
}
- clksrc.mult = clocksource_hz2mult(divided_rate, clksrc.shift);
printk(bootinfo, clksrc.name, CONFIG_ATMEL_TCB_CLKSRC_BLOCK,
divided_rate / 1000000,
@@ -292,7 +290,7 @@ static int __init tcb_clksrc_init(void)
__raw_writel(ATMEL_TC_SYNC, tcaddr + ATMEL_TC_BCR);
/* and away we go! */
- clocksource_register(&clksrc);
+ clocksource_register_hz(&clksrc, divided_rate);
/* channel 2: periodic and oneshot timer support */
setup_clkevents(tc, clk32k_divisor_idx);
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index c97b468ee9f7..235a340e81f2 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -95,27 +95,26 @@ static struct dbs_tuners {
.freq_step = 5,
};
-static inline cputime64_t get_cpu_idle_time_jiffy(unsigned int cpu,
- cputime64_t *wall)
+static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
{
- cputime64_t idle_time;
- cputime64_t cur_wall_time;
- cputime64_t busy_time;
+ u64 idle_time;
+ u64 cur_wall_time;
+ u64 busy_time;
cur_wall_time = jiffies64_to_cputime64(get_jiffies_64());
- busy_time = cputime64_add(kstat_cpu(cpu).cpustat.user,
- kstat_cpu(cpu).cpustat.system);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.irq);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.softirq);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.steal);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.nice);
+ busy_time = kcpustat_cpu(cpu).cpustat[CPUTIME_USER];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SYSTEM];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_IRQ];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SOFTIRQ];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_STEAL];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
- idle_time = cputime64_sub(cur_wall_time, busy_time);
+ idle_time = cur_wall_time - busy_time;
if (wall)
- *wall = (cputime64_t)jiffies_to_usecs(cur_wall_time);
+ *wall = jiffies_to_usecs(cur_wall_time);
- return (cputime64_t)jiffies_to_usecs(idle_time);
+ return jiffies_to_usecs(idle_time);
}
static inline cputime64_t get_cpu_idle_time(unsigned int cpu, cputime64_t *wall)
@@ -272,7 +271,7 @@ static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&dbs_info->prev_cpu_wall);
if (dbs_tuners_ins.ignore_nice)
- dbs_info->prev_cpu_nice = kstat_cpu(j).cpustat.nice;
+ dbs_info->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
}
return count;
}
@@ -353,20 +352,20 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
cur_idle_time = get_cpu_idle_time(j, &cur_wall_time);
- wall_time = (unsigned int) cputime64_sub(cur_wall_time,
- j_dbs_info->prev_cpu_wall);
+ wall_time = (unsigned int)
+ (cur_wall_time - j_dbs_info->prev_cpu_wall);
j_dbs_info->prev_cpu_wall = cur_wall_time;
- idle_time = (unsigned int) cputime64_sub(cur_idle_time,
- j_dbs_info->prev_cpu_idle);
+ idle_time = (unsigned int)
+ (cur_idle_time - j_dbs_info->prev_cpu_idle);
j_dbs_info->prev_cpu_idle = cur_idle_time;
if (dbs_tuners_ins.ignore_nice) {
- cputime64_t cur_nice;
+ u64 cur_nice;
unsigned long cur_nice_jiffies;
- cur_nice = cputime64_sub(kstat_cpu(j).cpustat.nice,
- j_dbs_info->prev_cpu_nice);
+ cur_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE] -
+ j_dbs_info->prev_cpu_nice;
/*
* Assumption: nice time between sampling periods will
* be less than 2^32 jiffies for 32 bit sys
@@ -374,7 +373,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
cur_nice_jiffies = (unsigned long)
cputime64_to_jiffies64(cur_nice);
- j_dbs_info->prev_cpu_nice = kstat_cpu(j).cpustat.nice;
+ j_dbs_info->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
idle_time += jiffies_to_usecs(cur_nice_jiffies);
}
@@ -501,10 +500,9 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
j_dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&j_dbs_info->prev_cpu_wall);
- if (dbs_tuners_ins.ignore_nice) {
+ if (dbs_tuners_ins.ignore_nice)
j_dbs_info->prev_cpu_nice =
- kstat_cpu(j).cpustat.nice;
- }
+ kcpustat_cpu(j).cpustat[CPUTIME_NICE];
}
this_dbs_info->down_skip = 0;
this_dbs_info->requested_freq = policy->cur;
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index fa8af4ebb1d6..3d679eee70a1 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -119,27 +119,26 @@ static struct dbs_tuners {
.powersave_bias = 0,
};
-static inline cputime64_t get_cpu_idle_time_jiffy(unsigned int cpu,
- cputime64_t *wall)
+static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
{
- cputime64_t idle_time;
- cputime64_t cur_wall_time;
- cputime64_t busy_time;
+ u64 idle_time;
+ u64 cur_wall_time;
+ u64 busy_time;
cur_wall_time = jiffies64_to_cputime64(get_jiffies_64());
- busy_time = cputime64_add(kstat_cpu(cpu).cpustat.user,
- kstat_cpu(cpu).cpustat.system);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.irq);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.softirq);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.steal);
- busy_time = cputime64_add(busy_time, kstat_cpu(cpu).cpustat.nice);
+ busy_time = kcpustat_cpu(cpu).cpustat[CPUTIME_USER];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SYSTEM];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_IRQ];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SOFTIRQ];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_STEAL];
+ busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
- idle_time = cputime64_sub(cur_wall_time, busy_time);
+ idle_time = cur_wall_time - busy_time;
if (wall)
- *wall = (cputime64_t)jiffies_to_usecs(cur_wall_time);
+ *wall = jiffies_to_usecs(cur_wall_time);
- return (cputime64_t)jiffies_to_usecs(idle_time);
+ return jiffies_to_usecs(idle_time);
}
static inline cputime64_t get_cpu_idle_time(unsigned int cpu, cputime64_t *wall)
@@ -345,7 +344,7 @@ static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&dbs_info->prev_cpu_wall);
if (dbs_tuners_ins.ignore_nice)
- dbs_info->prev_cpu_nice = kstat_cpu(j).cpustat.nice;
+ dbs_info->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
}
return count;
@@ -442,24 +441,24 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
cur_idle_time = get_cpu_idle_time(j, &cur_wall_time);
cur_iowait_time = get_cpu_iowait_time(j, &cur_wall_time);
- wall_time = (unsigned int) cputime64_sub(cur_wall_time,
- j_dbs_info->prev_cpu_wall);
+ wall_time = (unsigned int)
+ (cur_wall_time - j_dbs_info->prev_cpu_wall);
j_dbs_info->prev_cpu_wall = cur_wall_time;
- idle_time = (unsigned int) cputime64_sub(cur_idle_time,
- j_dbs_info->prev_cpu_idle);
+ idle_time = (unsigned int)
+ (cur_idle_time - j_dbs_info->prev_cpu_idle);
j_dbs_info->prev_cpu_idle = cur_idle_time;
- iowait_time = (unsigned int) cputime64_sub(cur_iowait_time,
- j_dbs_info->prev_cpu_iowait);
+ iowait_time = (unsigned int)
+ (cur_iowait_time - j_dbs_info->prev_cpu_iowait);
j_dbs_info->prev_cpu_iowait = cur_iowait_time;
if (dbs_tuners_ins.ignore_nice) {
- cputime64_t cur_nice;
+ u64 cur_nice;
unsigned long cur_nice_jiffies;
- cur_nice = cputime64_sub(kstat_cpu(j).cpustat.nice,
- j_dbs_info->prev_cpu_nice);
+ cur_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE] -
+ j_dbs_info->prev_cpu_nice;
/*
* Assumption: nice time between sampling periods will
* be less than 2^32 jiffies for 32 bit sys
@@ -467,7 +466,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
cur_nice_jiffies = (unsigned long)
cputime64_to_jiffies64(cur_nice);
- j_dbs_info->prev_cpu_nice = kstat_cpu(j).cpustat.nice;
+ j_dbs_info->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
idle_time += jiffies_to_usecs(cur_nice_jiffies);
}
@@ -646,10 +645,9 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
j_dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&j_dbs_info->prev_cpu_wall);
- if (dbs_tuners_ins.ignore_nice) {
+ if (dbs_tuners_ins.ignore_nice)
j_dbs_info->prev_cpu_nice =
- kstat_cpu(j).cpustat.nice;
- }
+ kcpustat_cpu(j).cpustat[CPUTIME_NICE];
}
this_dbs_info->cpu = cpu;
this_dbs_info->rate_mult = 1;
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index c5072a91e848..2a508edd768b 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -61,9 +61,8 @@ static int cpufreq_stats_update(unsigned int cpu)
spin_lock(&cpufreq_stats_lock);
stat = per_cpu(cpufreq_stats_table, cpu);
if (stat->time_in_state)
- stat->time_in_state[stat->last_index] =
- cputime64_add(stat->time_in_state[stat->last_index],
- cputime_sub(cur_time, stat->last_time));
+ stat->time_in_state[stat->last_index] +=
+ cur_time - stat->last_time;
stat->last_time = cur_time;
spin_unlock(&cpufreq_stats_lock);
return 0;
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 70ad8923f1d7..8568d9b61875 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -2234,7 +2234,7 @@ static void i7core_unregister_mci(struct i7core_dev *i7core_dev)
if (pvt->enable_scrub)
disable_sdram_scrub_setting(mci);
- atomic_notifier_chain_unregister(&x86_mce_decoder_chain, &i7_mce_dec);
+ mce_unregister_decode_chain(&i7_mce_dec);
/* Disable EDAC polling */
i7core_pci_ctl_release(pvt);
@@ -2336,7 +2336,7 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
/* DCLK for scrub rate setting */
pvt->dclk_freq = get_dclk_freq();
- atomic_notifier_chain_register(&x86_mce_decoder_chain, &i7_mce_dec);
+ mce_register_decode_chain(&i7_mce_dec);
return 0;
diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
index d0864d9c38ad..bd926ea2e00c 100644
--- a/drivers/edac/mce_amd.c
+++ b/drivers/edac/mce_amd.c
@@ -884,7 +884,7 @@ static int __init mce_amd_init(void)
pr_info("MCE: In-kernel MCE decoding enabled.\n");
- atomic_notifier_chain_register(&x86_mce_decoder_chain, &amd_mce_dec_nb);
+ mce_register_decode_chain(&amd_mce_dec_nb);
return 0;
}
@@ -893,7 +893,7 @@ early_initcall(mce_amd_init);
#ifdef MODULE
static void __exit mce_amd_exit(void)
{
- atomic_notifier_chain_unregister(&x86_mce_decoder_chain, &amd_mce_dec_nb);
+ mce_unregister_decode_chain(&amd_mce_dec_nb);
kfree(fam_ops);
}
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 7a402bfbee7d..1dc118d83cc6 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1609,11 +1609,9 @@ static int sbridge_mce_check_error(struct notifier_block *nb, unsigned long val,
mce->cpuvendor, mce->cpuid, mce->time,
mce->socketid, mce->apicid);
-#ifdef CONFIG_SMP
/* Only handle if it is the right mc controller */
if (cpu_data(mce->cpu).phys_proc_id != pvt->sbridge_dev->mc)
return NOTIFY_DONE;
-#endif
smp_rmb();
if ((pvt->mce_out + 1) % MCE_LOG_LEN == pvt->mce_in) {
@@ -1661,8 +1659,7 @@ static void sbridge_unregister_mci(struct sbridge_dev *sbridge_dev)
debugf0("MC: " __FILE__ ": %s(): mci = %p, dev = %p\n",
__func__, mci, &sbridge_dev->pdev[0]->dev);
- atomic_notifier_chain_unregister(&x86_mce_decoder_chain,
- &sbridge_mce_dec);
+ mce_unregister_decode_chain(&sbridge_mce_dec);
/* Remove MC sysfs nodes */
edac_mc_del_mc(mci->dev);
@@ -1731,8 +1728,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
goto fail0;
}
- atomic_notifier_chain_register(&x86_mce_decoder_chain,
- &sbridge_mce_dec);
+ mce_register_decode_chain(&sbridge_mce_dec);
return 0;
fail0:
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 104b3767516c..1fdef885341c 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -57,16 +57,15 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
#define TOTAL_ATTRS (MAX_CORE_ATTRS + 1)
#define MAX_CORE_DATA (NUM_REAL_CORES + BASE_SYSFS_ATTR_NO)
-#ifdef CONFIG_SMP
#define TO_PHYS_ID(cpu) cpu_data(cpu).phys_proc_id
#define TO_CORE_ID(cpu) cpu_data(cpu).cpu_core_id
+#define TO_ATTR_NO(cpu) (TO_CORE_ID(cpu) + BASE_SYSFS_ATTR_NO)
+
+#ifdef CONFIG_SMP
#define for_each_sibling(i, cpu) for_each_cpu(i, cpu_sibling_mask(cpu))
#else
-#define TO_PHYS_ID(cpu) (cpu)
-#define TO_CORE_ID(cpu) (cpu)
#define for_each_sibling(i, cpu) for (i = 0; false; )
#endif
-#define TO_ATTR_NO(cpu) (TO_CORE_ID(cpu) + BASE_SYSFS_ATTR_NO)
/*
* Per-Core Temperature Data
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index bdc447fd4766..31053a951c34 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -41,6 +41,7 @@
#include <linux/tboot.h>
#include <linux/dmi.h>
#include <linux/pci-ats.h>
+#include <linux/memblock.h>
#include <asm/cacheflush.h>
#include <asm/iommu.h>
@@ -2188,18 +2189,6 @@ static inline void iommu_prepare_isa(void)
static int md_domain_init(struct dmar_domain *domain, int guest_width);
-static int __init si_domain_work_fn(unsigned long start_pfn,
- unsigned long end_pfn, void *datax)
-{
- int *ret = datax;
-
- *ret = iommu_domain_identity_map(si_domain,
- (uint64_t)start_pfn << PAGE_SHIFT,
- (uint64_t)end_pfn << PAGE_SHIFT);
- return *ret;
-
-}
-
static int __init si_domain_init(int hw)
{
struct dmar_drhd_unit *drhd;
@@ -2231,9 +2220,15 @@ static int __init si_domain_init(int hw)
return 0;
for_each_online_node(nid) {
- work_with_active_regions(nid, si_domain_work_fn, &ret);
- if (ret)
- return ret;
+ unsigned long start_pfn, end_pfn;
+ int i;
+
+ for_each_mem_pfn_range(i, nid, &start_pfn, &end_pfn, NULL) {
+ ret = iommu_domain_identity_map(si_domain,
+ PFN_PHYS(start_pfn), PFN_PHYS(end_pfn));
+ if (ret)
+ return ret;
+ }
}
return 0;
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 65af42f2d593..39809035320a 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -697,7 +697,7 @@ void lguest_arch_setup_regs(struct lg_cpu *cpu, unsigned long start)
* interrupts are enabled. We always leave interrupts enabled while
* running the Guest.
*/
- regs->eflags = X86_EFLAGS_IF | 0x2;
+ regs->eflags = X86_EFLAGS_IF | X86_EFLAGS_BIT1;
/*
* The "Extended Instruction Pointer" register says where the Guest is
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index 2637c139777b..6dc26b61219b 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -81,13 +81,13 @@ static int rackmeter_ignore_nice;
*/
static inline cputime64_t get_cpu_idle_time(unsigned int cpu)
{
- cputime64_t retval;
+ u64 retval;
- retval = cputime64_add(kstat_cpu(cpu).cpustat.idle,
- kstat_cpu(cpu).cpustat.iowait);
+ retval = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE] +
+ kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
if (rackmeter_ignore_nice)
- retval = cputime64_add(retval, kstat_cpu(cpu).cpustat.nice);
+ retval += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
return retval;
}
@@ -220,13 +220,11 @@ static void rackmeter_do_timer(struct work_struct *work)
int i, offset, load, cumm, pause;
cur_jiffies = jiffies64_to_cputime64(get_jiffies_64());
- total_ticks = (unsigned int)cputime64_sub(cur_jiffies,
- rcpu->prev_wall);
+ total_ticks = (unsigned int) (cur_jiffies - rcpu->prev_wall);
rcpu->prev_wall = cur_jiffies;
total_idle_ticks = get_cpu_idle_time(cpu);
- idle_ticks = (unsigned int) cputime64_sub(total_idle_ticks,
- rcpu->prev_idle);
+ idle_ticks = (unsigned int) (total_idle_ticks - rcpu->prev_idle);
rcpu->prev_idle = total_idle_ticks;
/* We do a very dumb calculation to update the LEDs for now,
diff --git a/drivers/oprofile/nmi_timer_int.c b/drivers/oprofile/nmi_timer_int.c
new file mode 100644
index 000000000000..76f1c9357f39
--- /dev/null
+++ b/drivers/oprofile/nmi_timer_int.c
@@ -0,0 +1,173 @@
+/**
+ * @file nmi_timer_int.c
+ *
+ * @remark Copyright 2011 Advanced Micro Devices, Inc.
+ *
+ * @author Robert Richter <robert.richter@amd.com>
+ */
+
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/errno.h>
+#include <linux/oprofile.h>
+#include <linux/perf_event.h>
+
+#ifdef CONFIG_OPROFILE_NMI_TIMER
+
+static DEFINE_PER_CPU(struct perf_event *, nmi_timer_events);
+static int ctr_running;
+
+static struct perf_event_attr nmi_timer_attr = {
+ .type = PERF_TYPE_HARDWARE,
+ .config = PERF_COUNT_HW_CPU_CYCLES,
+ .size = sizeof(struct perf_event_attr),
+ .pinned = 1,
+ .disabled = 1,
+};
+
+static void nmi_timer_callback(struct perf_event *event,
+ struct perf_sample_data *data,
+ struct pt_regs *regs)
+{
+ event->hw.interrupts = 0; /* don't throttle interrupts */
+ oprofile_add_sample(regs, 0);
+}
+
+static int nmi_timer_start_cpu(int cpu)
+{
+ struct perf_event *event = per_cpu(nmi_timer_events, cpu);
+
+ if (!event) {
+ event = perf_event_create_kernel_counter(&nmi_timer_attr, cpu, NULL,
+ nmi_timer_callback, NULL);
+ if (IS_ERR(event))
+ return PTR_ERR(event);
+ per_cpu(nmi_timer_events, cpu) = event;
+ }
+
+ if (event && ctr_running)
+ perf_event_enable(event);
+
+ return 0;
+}
+
+static void nmi_timer_stop_cpu(int cpu)
+{
+ struct perf_event *event = per_cpu(nmi_timer_events, cpu);
+
+ if (event && ctr_running)
+ perf_event_disable(event);
+}
+
+static int nmi_timer_cpu_notifier(struct notifier_block *b, unsigned long action,
+ void *data)
+{
+ int cpu = (unsigned long)data;
+ switch (action) {
+ case CPU_DOWN_FAILED:
+ case CPU_ONLINE:
+ nmi_timer_start_cpu(cpu);
+ break;
+ case CPU_DOWN_PREPARE:
+ nmi_timer_stop_cpu(cpu);
+ break;
+ }
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block nmi_timer_cpu_nb = {
+ .notifier_call = nmi_timer_cpu_notifier
+};
+
+static int nmi_timer_start(void)
+{
+ int cpu;
+
+ get_online_cpus();
+ ctr_running = 1;
+ for_each_online_cpu(cpu)
+ nmi_timer_start_cpu(cpu);
+ put_online_cpus();
+
+ return 0;
+}
+
+static void nmi_timer_stop(void)
+{
+ int cpu;
+
+ get_online_cpus();
+ for_each_online_cpu(cpu)
+ nmi_timer_stop_cpu(cpu);
+ ctr_running = 0;
+ put_online_cpus();
+}
+
+static void nmi_timer_shutdown(void)
+{
+ struct perf_event *event;
+ int cpu;
+
+ get_online_cpus();
+ unregister_cpu_notifier(&nmi_timer_cpu_nb);
+ for_each_possible_cpu(cpu) {
+ event = per_cpu(nmi_timer_events, cpu);
+ if (!event)
+ continue;
+ perf_event_disable(event);
+ per_cpu(nmi_timer_events, cpu) = NULL;
+ perf_event_release_kernel(event);
+ }
+
+ put_online_cpus();
+}
+
+static int nmi_timer_setup(void)
+{
+ int cpu, err;
+ u64 period;
+
+ /* clock cycles per tick: */
+ period = (u64)cpu_khz * 1000;
+ do_div(period, HZ);
+ nmi_timer_attr.sample_period = period;
+
+ get_online_cpus();
+ err = register_cpu_notifier(&nmi_timer_cpu_nb);
+ if (err)
+ goto out;
+ /* can't attach events to offline cpus: */
+ for_each_online_cpu(cpu) {
+ err = nmi_timer_start_cpu(cpu);
+ if (err)
+ break;
+ }
+ if (err)
+ nmi_timer_shutdown();
+out:
+ put_online_cpus();
+ return err;
+}
+
+int __init op_nmi_timer_init(struct oprofile_operations *ops)
+{
+ int err = 0;
+
+ err = nmi_timer_setup();
+ if (err)
+ return err;
+ nmi_timer_shutdown(); /* only check, don't alloc */
+
+ ops->create_files = NULL;
+ ops->setup = nmi_timer_setup;
+ ops->shutdown = nmi_timer_shutdown;
+ ops->start = nmi_timer_start;
+ ops->stop = nmi_timer_stop;
+ ops->cpu_type = "timer";
+
+ printk(KERN_INFO "oprofile: using NMI timer interrupt.\n");
+
+ return 0;
+}
+
+#endif
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index f8c752e408a6..ed2c3ec07024 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -246,37 +246,31 @@ static int __init oprofile_init(void)
int err;
/* always init architecture to setup backtrace support */
+ timer_mode = 0;
err = oprofile_arch_init(&oprofile_ops);
+ if (!err) {
+ if (!timer && !oprofilefs_register())
+ return 0;
+ oprofile_arch_exit();
+ }
- timer_mode = err || timer; /* fall back to timer mode on errors */
- if (timer_mode) {
- if (!err)
- oprofile_arch_exit();
+ /* setup timer mode: */
+ timer_mode = 1;
+ /* no nmi timer mode if oprofile.timer is set */
+ if (timer || op_nmi_timer_init(&oprofile_ops)) {
err = oprofile_timer_init(&oprofile_ops);
if (err)
return err;
}
- err = oprofilefs_register();
- if (!err)
- return 0;
-
- /* failed */
- if (timer_mode)
- oprofile_timer_exit();
- else
- oprofile_arch_exit();
-
- return err;
+ return oprofilefs_register();
}
static void __exit oprofile_exit(void)
{
oprofilefs_unregister();
- if (timer_mode)
- oprofile_timer_exit();
- else
+ if (!timer_mode)
oprofile_arch_exit();
}
diff --git a/drivers/oprofile/oprof.h b/drivers/oprofile/oprof.h
index 177b73de5e5f..d32ef816337c 100644
--- a/drivers/oprofile/oprof.h
+++ b/drivers/oprofile/oprof.h
@@ -35,7 +35,15 @@ struct dentry;
void oprofile_create_files(struct super_block *sb, struct dentry *root);
int oprofile_timer_init(struct oprofile_operations *ops);
-void oprofile_timer_exit(void);
+#ifdef CONFIG_OPROFILE_NMI_TIMER
+int op_nmi_timer_init(struct oprofile_operations *ops);
+#else
+static inline int op_nmi_timer_init(struct oprofile_operations *ops)
+{
+ return -ENODEV;
+}
+#endif
+
int oprofile_set_ulong(unsigned long *addr, unsigned long val);
int oprofile_set_timeout(unsigned long time);
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
index 878fba126582..93404f72dfa8 100644
--- a/drivers/oprofile/timer_int.c
+++ b/drivers/oprofile/timer_int.c
@@ -97,24 +97,24 @@ static struct notifier_block __refdata oprofile_cpu_notifier = {
.notifier_call = oprofile_cpu_notify,
};
-int oprofile_timer_init(struct oprofile_operations *ops)
+static int oprofile_hrtimer_setup(void)
{
- int rc;
-
- rc = register_hotcpu_notifier(&oprofile_cpu_notifier);
- if (rc)
- return rc;
- ops->create_files = NULL;
- ops->setup = NULL;
- ops->shutdown = NULL;
- ops->start = oprofile_hrtimer_start;
- ops->stop = oprofile_hrtimer_stop;
- ops->cpu_type = "timer";
- printk(KERN_INFO "oprofile: using timer interrupt.\n");
- return 0;
+ return register_hotcpu_notifier(&oprofile_cpu_notifier);
}
-void oprofile_timer_exit(void)
+static void oprofile_hrtimer_shutdown(void)
{
unregister_hotcpu_notifier(&oprofile_cpu_notifier);
}
+
+int oprofile_timer_init(struct oprofile_operations *ops)
+{
+ ops->create_files = NULL;
+ ops->setup = oprofile_hrtimer_setup;
+ ops->shutdown = oprofile_hrtimer_shutdown;
+ ops->start = oprofile_hrtimer_start;
+ ops->stop = oprofile_hrtimer_stop;
+ ops->cpu_type = "timer";
+ printk(KERN_INFO "oprofile: using timer interrupt.\n");
+ return 0;
+}
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index f02b5235056d..37856f7c7781 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -98,11 +98,11 @@ config PCI_PASID
If unsure, say N.
config PCI_IOAPIC
- bool
+ tristate "PCI IO-APIC hotplug support" if X86
depends on PCI
depends on ACPI
depends on HOTPLUG
- default y
+ default !X86
config PCI_LABEL
def_bool y if (DMI || ACPI)
diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c
index 5775638ac017..205af8dc83c2 100644
--- a/drivers/pci/ioapic.c
+++ b/drivers/pci/ioapic.c
@@ -17,7 +17,7 @@
*/
#include <linux/pci.h>
-#include <linux/export.h>
+#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/slab.h>
#include <acpi/acpi_bus.h>
@@ -27,7 +27,7 @@ struct ioapic {
u32 gsi_base;
};
-static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+static int __devinit ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
{
acpi_handle handle;
acpi_status status;
@@ -88,7 +88,7 @@ exit_free:
return -ENODEV;
}
-static void ioapic_remove(struct pci_dev *dev)
+static void __devexit ioapic_remove(struct pci_dev *dev)
{
struct ioapic *ioapic = pci_get_drvdata(dev);
@@ -99,13 +99,12 @@ static void ioapic_remove(struct pci_dev *dev)
}
-static struct pci_device_id ioapic_devices[] = {
- { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_SYSTEM_PIC_IOAPIC << 8, 0xffff00, },
- { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_SYSTEM_PIC_IOXAPIC << 8, 0xffff00, },
+static DEFINE_PCI_DEVICE_TABLE(ioapic_devices) = {
+ { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_PIC_IOAPIC, ~0) },
+ { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_PIC_IOXAPIC, ~0) },
{ }
};
+MODULE_DEVICE_TABLE(pci, ioapic_devices);
static struct pci_driver ioapic_driver = {
.name = "ioapic",
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.