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Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits)
  x86: export vector_used_by_percpu_irq
  x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
  sched: nominate preferred wakeup cpu, fix
  x86: fix lguest used_vectors breakage, -v2
  x86: fix warning in arch/x86/kernel/io_apic.c
  sched: fix warning in kernel/sched.c
  sched: move test_sd_parent() to an SMP section of sched.h
  sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
  sched: activate active load balancing in new idle cpus
  sched: bias task wakeups to preferred semi-idle packages
  sched: nominate preferred wakeup cpu
  sched: favour lower logical cpu number for sched_mc balance
  sched: framework for sched_mc/smt_power_savings=N
  sched: convert BALANCE_FOR_xx_POWER to inline functions
  x86: use possible_cpus=NUM to extend the possible cpus allowed
  x86: fix cpu_mask_to_apicid_and to include cpu_online_mask
  x86: update io_apic.c to the new cpumask code
  x86: Introduce topology_core_cpumask()/topology_thread_cpumask()
  x86: xen: use smp_call_function_many()
  x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c
  ...

Fixed up trivial conflict in kernel/time/tick-sched.c manually
This commit is contained in:
Linus Torvalds
2009-01-02 11:44:09 -08:00
부모 597b0d2162 c3d80000e3
커밋 b840d79631
198개의 변경된 파일과 2018개의 추가작업 그리고 1423개의 파일을 삭제
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49
arch/x86/kernel/cpu/intel_cacheinfo.c
파일 보기

@@ -534,12 +534,29 @@ static void __cpuinit free_cache_attributes(unsigned int cpu)
per_cpu(cpuid4_info, cpu) = NULL;
}
static void get_cpu_leaves(void *_retval)
{
int j, *retval = _retval, cpu = smp_processor_id();
/* Do cpuid and store the results */
for (j = 0; j < num_cache_leaves; j++) {
struct _cpuid4_info *this_leaf;
this_leaf = CPUID4_INFO_IDX(cpu, j);
*retval = cpuid4_cache_lookup(j, this_leaf);
if (unlikely(*retval < 0)) {
int i;
for (i = 0; i < j; i++)
cache_remove_shared_cpu_map(cpu, i);
break;
}
cache_shared_cpu_map_setup(cpu, j);
}
}
static int __cpuinit detect_cache_attributes(unsigned int cpu)
{
struct _cpuid4_info *this_leaf;
unsigned long j;
int retval;
cpumask_t oldmask;
if (num_cache_leaves == 0)
return -ENOENT;
@@ -549,27 +566,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
if (per_cpu(cpuid4_info, cpu) == NULL)
return -ENOMEM;
oldmask = current->cpus_allowed;
retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
if (retval)
goto out;
/* Do cpuid and store the results */
for (j = 0; j < num_cache_leaves; j++) {
this_leaf = CPUID4_INFO_IDX(cpu, j);
retval = cpuid4_cache_lookup(j, this_leaf);
if (unlikely(retval < 0)) {
int i;
for (i = 0; i < j; i++)
cache_remove_shared_cpu_map(cpu, i);
break;
}
cache_shared_cpu_map_setup(cpu, j);
}
set_cpus_allowed_ptr(current, &oldmask);
out:
smp_call_function_single(cpu, get_cpu_leaves, &retval, true);
if (retval) {
kfree(per_cpu(cpuid4_info, cpu));
per_cpu(cpuid4_info, cpu) = NULL;
@@ -626,8 +623,8 @@ static ssize_t show_shared_cpu_map_func(struct _cpuid4_info *this_leaf,
cpumask_t *mask = &this_leaf->shared_cpu_map;
n = type?
cpulist_scnprintf(buf, len-2, *mask):
cpumask_scnprintf(buf, len-2, *mask);
cpulist_scnprintf(buf, len-2, mask) :
cpumask_scnprintf(buf, len-2, mask);
buf[n++] = '\n';
buf[n] = '\0';
}

108
arch/x86/kernel/cpu/mcheck/mce_amd_64.c
파일 보기

@@ -83,34 +83,41 @@ static DEFINE_PER_CPU(unsigned char, bank_map); /* see which banks are on */
* CPU Initialization
*/
struct thresh_restart {
struct threshold_block *b;
int reset;
u16 old_limit;
};
/* must be called with correct cpu affinity */
static void threshold_restart_bank(struct threshold_block *b,
int reset, u16 old_limit)
static long threshold_restart_bank(void *_tr)
{
struct thresh_restart *tr = _tr;
u32 mci_misc_hi, mci_misc_lo;
rdmsr(b->address, mci_misc_lo, mci_misc_hi);
rdmsr(tr->b->address, mci_misc_lo, mci_misc_hi);
if (b->threshold_limit < (mci_misc_hi & THRESHOLD_MAX))
reset = 1; /* limit cannot be lower than err count */
if (tr->b->threshold_limit < (mci_misc_hi & THRESHOLD_MAX))
tr->reset = 1; /* limit cannot be lower than err count */
if (reset) { /* reset err count and overflow bit */
if (tr->reset) { /* reset err count and overflow bit */
mci_misc_hi =
(mci_misc_hi & ~(MASK_ERR_COUNT_HI | MASK_OVERFLOW_HI)) |
(THRESHOLD_MAX - b->threshold_limit);
} else if (old_limit) { /* change limit w/o reset */
(THRESHOLD_MAX - tr->b->threshold_limit);
} else if (tr->old_limit) { /* change limit w/o reset */
int new_count = (mci_misc_hi & THRESHOLD_MAX) +
(old_limit - b->threshold_limit);
(tr->old_limit - tr->b->threshold_limit);
mci_misc_hi = (mci_misc_hi & ~MASK_ERR_COUNT_HI) |
(new_count & THRESHOLD_MAX);
}
b->interrupt_enable ?
tr->b->interrupt_enable ?
(mci_misc_hi = (mci_misc_hi & ~MASK_INT_TYPE_HI) | INT_TYPE_APIC) :
(mci_misc_hi &= ~MASK_INT_TYPE_HI);
mci_misc_hi |= MASK_COUNT_EN_HI;
wrmsr(b->address, mci_misc_lo, mci_misc_hi);
wrmsr(tr->b->address, mci_misc_lo, mci_misc_hi);
return 0;
}
/* cpu init entry point, called from mce.c with preempt off */
@@ -120,6 +127,7 @@ void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
unsigned int cpu = smp_processor_id();
u8 lvt_off;
u32 low = 0, high = 0, address = 0;
struct thresh_restart tr;
for (bank = 0; bank < NR_BANKS; ++bank) {
for (block = 0; block < NR_BLOCKS; ++block) {
@@ -162,7 +170,10 @@ void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
wrmsr(address, low, high);
threshold_defaults.address = address;
threshold_restart_bank(&threshold_defaults, 0, 0);
tr.b = &threshold_defaults;
tr.reset = 0;
tr.old_limit = 0;
threshold_restart_bank(&tr);
}
}
}
@@ -251,20 +262,6 @@ struct threshold_attr {
ssize_t(*store) (struct threshold_block *, const char *, size_t count);
};
static void affinity_set(unsigned int cpu, cpumask_t *oldmask,
cpumask_t *newmask)
{
*oldmask = current->cpus_allowed;
cpus_clear(*newmask);
cpu_set(cpu, *newmask);
set_cpus_allowed_ptr(current, newmask);
}
static void affinity_restore(const cpumask_t *oldmask)
{
set_cpus_allowed_ptr(current, oldmask);
}
#define SHOW_FIELDS(name) \
static ssize_t show_ ## name(struct threshold_block * b, char *buf) \
{ \
@@ -277,15 +274,16 @@ static ssize_t store_interrupt_enable(struct threshold_block *b,
const char *buf, size_t count)
{
char *end;
cpumask_t oldmask, newmask;
struct thresh_restart tr;
unsigned long new = simple_strtoul(buf, &end, 0);
if (end == buf)
return -EINVAL;
b->interrupt_enable = !!new;
affinity_set(b->cpu, &oldmask, &newmask);
threshold_restart_bank(b, 0, 0);
affinity_restore(&oldmask);
tr.b = b;
tr.reset = 0;
tr.old_limit = 0;
work_on_cpu(b->cpu, threshold_restart_bank, &tr);
return end - buf;
}
@@ -294,8 +292,7 @@ static ssize_t store_threshold_limit(struct threshold_block *b,
const char *buf, size_t count)
{
char *end;
cpumask_t oldmask, newmask;
u16 old;
struct thresh_restart tr;
unsigned long new = simple_strtoul(buf, &end, 0);
if (end == buf)
return -EINVAL;
@@ -303,34 +300,36 @@ static ssize_t store_threshold_limit(struct threshold_block *b,
new = THRESHOLD_MAX;
if (new < 1)
new = 1;
old = b->threshold_limit;
tr.old_limit = b->threshold_limit;
b->threshold_limit = new;
tr.b = b;
tr.reset = 0;
affinity_set(b->cpu, &oldmask, &newmask);
threshold_restart_bank(b, 0, old);
affinity_restore(&oldmask);
work_on_cpu(b->cpu, threshold_restart_bank, &tr);
return end - buf;
}
static long local_error_count(void *_b)
{
struct threshold_block *b = _b;
u32 low, high;
rdmsr(b->address, low, high);
return (high & 0xFFF) - (THRESHOLD_MAX - b->threshold_limit);
}
static ssize_t show_error_count(struct threshold_block *b, char *buf)
{
u32 high, low;
cpumask_t oldmask, newmask;
affinity_set(b->cpu, &oldmask, &newmask);
rdmsr(b->address, low, high);
affinity_restore(&oldmask);
return sprintf(buf, "%x\n",
(high & 0xFFF) - (THRESHOLD_MAX - b->threshold_limit));
return sprintf(buf, "%lx\n", work_on_cpu(b->cpu, local_error_count, b));
}
static ssize_t store_error_count(struct threshold_block *b,
const char *buf, size_t count)
{
cpumask_t oldmask, newmask;
affinity_set(b->cpu, &oldmask, &newmask);
threshold_restart_bank(b, 1, 0);
affinity_restore(&oldmask);
struct thresh_restart tr = { .b = b, .reset = 1, .old_limit = 0 };
work_on_cpu(b->cpu, threshold_restart_bank, &tr);
return 1;
}
@@ -463,12 +462,19 @@ out_free:
return err;
}
static long local_allocate_threshold_blocks(void *_bank)
{
unsigned int *bank = _bank;
return allocate_threshold_blocks(smp_processor_id(), *bank, 0,
MSR_IA32_MC0_MISC + *bank * 4);
}
/* symlinks sibling shared banks to first core. first core owns dir/files. */
static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
{
int i, err = 0;
struct threshold_bank *b = NULL;
cpumask_t oldmask, newmask;
char name[32];
sprintf(name, "threshold_bank%i", bank);
@@ -519,11 +525,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
per_cpu(threshold_banks, cpu)[bank] = b;
affinity_set(cpu, &oldmask, &newmask);
err = allocate_threshold_blocks(cpu, bank, 0,
MSR_IA32_MC0_MISC + bank * 4);
affinity_restore(&oldmask);
err = work_on_cpu(cpu, local_allocate_threshold_blocks, &bank);
if (err)
goto out_free;