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-rw-r--r--arch/x86/include/asm/smp.h32
-rw-r--r--arch/x86/kernel/cpu/common.c26
-rw-r--r--arch/x86/kernel/setup_percpu.c25
-rw-r--r--arch/x86/kernel/smp.c17
-rw-r--r--arch/x86/kernel/smpboot.c128
5 files changed, 152 insertions, 76 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 830b9fcb6427..19953df61c52 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -18,9 +18,26 @@
#include <asm/pda.h>
#include <asm/thread_info.h>
+#ifdef CONFIG_X86_64
+
+extern cpumask_var_t cpu_callin_mask;
+extern cpumask_var_t cpu_callout_mask;
+extern cpumask_var_t cpu_initialized_mask;
+extern cpumask_var_t cpu_sibling_setup_mask;
+
+#else /* CONFIG_X86_32 */
+
+extern cpumask_t cpu_callin_map;
extern cpumask_t cpu_callout_map;
extern cpumask_t cpu_initialized;
-extern cpumask_t cpu_callin_map;
+extern cpumask_t cpu_sibling_setup_map;
+
+#define cpu_callin_mask ((struct cpumask *)&cpu_callin_map)
+#define cpu_callout_mask ((struct cpumask *)&cpu_callout_map)
+#define cpu_initialized_mask ((struct cpumask *)&cpu_initialized)
+#define cpu_sibling_setup_mask ((struct cpumask *)&cpu_sibling_setup_map)
+
+#endif /* CONFIG_X86_32 */
extern void (*mtrr_hook)(void);
extern void zap_low_mappings(void);
@@ -29,7 +46,6 @@ extern int __cpuinit get_local_pda(int cpu);
extern int smp_num_siblings;
extern unsigned int num_processors;
-extern cpumask_t cpu_initialized;
DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
DECLARE_PER_CPU(cpumask_t, cpu_core_map);
@@ -38,6 +54,16 @@ DECLARE_PER_CPU(u16, cpu_llc_id);
DECLARE_PER_CPU(int, cpu_number);
#endif
+static inline struct cpumask *cpu_sibling_mask(int cpu)
+{
+ return &per_cpu(cpu_sibling_map, cpu);
+}
+
+static inline struct cpumask *cpu_core_mask(int cpu)
+{
+ return &per_cpu(cpu_core_map, cpu);
+}
+
DECLARE_EARLY_PER_CPU(u16, x86_cpu_to_apicid);
DECLARE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid);
@@ -149,7 +175,7 @@ void smp_store_cpu_info(int id);
/* We don't mark CPUs online until __cpu_up(), so we need another measure */
static inline int num_booting_cpus(void)
{
- return cpus_weight(cpu_callout_map);
+ return cpumask_weight(cpu_callout_mask);
}
#else
static inline void prefill_possible_map(void)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 3f95a40f718a..83492b1f93b1 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -40,6 +40,26 @@
#include "cpu.h"
+#ifdef CONFIG_X86_64
+
+/* all of these masks are initialized in setup_cpu_local_masks() */
+cpumask_var_t cpu_callin_mask;
+cpumask_var_t cpu_callout_mask;
+cpumask_var_t cpu_initialized_mask;
+
+/* representing cpus for which sibling maps can be computed */
+cpumask_var_t cpu_sibling_setup_mask;
+
+#else /* CONFIG_X86_32 */
+
+cpumask_t cpu_callin_map;
+cpumask_t cpu_callout_map;
+cpumask_t cpu_initialized;
+cpumask_t cpu_sibling_setup_map;
+
+#endif /* CONFIG_X86_32 */
+
+
static struct cpu_dev *this_cpu __cpuinitdata;
#ifdef CONFIG_X86_64
@@ -856,8 +876,6 @@ static __init int setup_disablecpuid(char *arg)
}
__setup("clearcpuid=", setup_disablecpuid);
-cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
-
#ifdef CONFIG_X86_64
struct x8664_pda **_cpu_pda __read_mostly;
EXPORT_SYMBOL(_cpu_pda);
@@ -976,7 +994,7 @@ void __cpuinit cpu_init(void)
me = current;
- if (cpu_test_and_set(cpu, cpu_initialized))
+ if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask))
panic("CPU#%d already initialized!\n", cpu);
printk(KERN_INFO "Initializing CPU#%d\n", cpu);
@@ -1085,7 +1103,7 @@ void __cpuinit cpu_init(void)
struct tss_struct *t = &per_cpu(init_tss, cpu);
struct thread_struct *thread = &curr->thread;
- if (cpu_test_and_set(cpu, cpu_initialized)) {
+ if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask)) {
printk(KERN_WARNING "CPU#%d already initialized!\n", cpu);
for (;;) local_irq_enable();
}
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index a4b619c33106..aa55764602b1 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -131,7 +131,27 @@ static void __init setup_cpu_pda_map(void)
/* point to new pointer table */
_cpu_pda = new_cpu_pda;
}
-#endif
+
+#endif /* CONFIG_SMP && CONFIG_X86_64 */
+
+#ifdef CONFIG_X86_64
+
+/* correctly size the local cpu masks */
+static void setup_cpu_local_masks(void)
+{
+ alloc_bootmem_cpumask_var(&cpu_initialized_mask);
+ alloc_bootmem_cpumask_var(&cpu_callin_mask);
+ alloc_bootmem_cpumask_var(&cpu_callout_mask);
+ alloc_bootmem_cpumask_var(&cpu_sibling_setup_mask);
+}
+
+#else /* CONFIG_X86_32 */
+
+static inline void setup_cpu_local_masks(void)
+{
+}
+
+#endif /* CONFIG_X86_32 */
/*
* Great future plan:
@@ -187,6 +207,9 @@ void __init setup_per_cpu_areas(void)
/* Setup node to cpumask map */
setup_node_to_cpumask_map();
+
+ /* Setup cpu initialized, callin, callout masks */
+ setup_cpu_local_masks();
}
#endif
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index beea2649a240..182135ba1eaf 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -128,16 +128,23 @@ void native_send_call_func_single_ipi(int cpu)
void native_send_call_func_ipi(const struct cpumask *mask)
{
- cpumask_t allbutself;
+ cpumask_var_t allbutself;
- allbutself = cpu_online_map;
- cpu_clear(smp_processor_id(), allbutself);
+ if (!alloc_cpumask_var(&allbutself, GFP_ATOMIC)) {
+ send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
+ return;
+ }
- if (cpus_equal(*mask, allbutself) &&
- cpus_equal(cpu_online_map, cpu_callout_map))
+ cpumask_copy(allbutself, cpu_online_mask);
+ cpumask_clear_cpu(smp_processor_id(), allbutself);
+
+ if (cpumask_equal(mask, allbutself) &&
+ cpumask_equal(cpu_online_mask, cpu_callout_mask))
send_IPI_allbutself(CALL_FUNCTION_VECTOR);
else
send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
+
+ free_cpumask_var(allbutself);
}
/*
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 6bd4d9b73870..00e17e589482 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -102,9 +102,6 @@ EXPORT_SYMBOL(smp_num_siblings);
/* Last level cache ID of each logical CPU */
DEFINE_PER_CPU(u16, cpu_llc_id) = BAD_APICID;
-cpumask_t cpu_callin_map;
-cpumask_t cpu_callout_map;
-
/* representing HT siblings of each logical CPU */
DEFINE_PER_CPU(cpumask_t, cpu_sibling_map);
EXPORT_PER_CPU_SYMBOL(cpu_sibling_map);
@@ -120,9 +117,6 @@ EXPORT_PER_CPU_SYMBOL(cpu_info);
static atomic_t init_deasserted;
-/* representing cpus for which sibling maps can be computed */
-static cpumask_t cpu_sibling_setup_map;
-
/* Set if we find a B stepping CPU */
static int __cpuinitdata smp_b_stepping;
@@ -140,7 +134,7 @@ EXPORT_SYMBOL(cpu_to_node_map);
static void map_cpu_to_node(int cpu, int node)
{
printk(KERN_INFO "Mapping cpu %d to node %d\n", cpu, node);
- cpu_set(cpu, node_to_cpumask_map[node]);
+ cpumask_set_cpu(cpu, &node_to_cpumask_map[node]);
cpu_to_node_map[cpu] = node;
}
@@ -151,7 +145,7 @@ static void unmap_cpu_to_node(int cpu)
printk(KERN_INFO "Unmapping cpu %d from all nodes\n", cpu);
for (node = 0; node < MAX_NUMNODES; node++)
- cpu_clear(cpu, node_to_cpumask_map[node]);
+ cpumask_clear_cpu(cpu, &node_to_cpumask_map[node]);
cpu_to_node_map[cpu] = 0;
}
#else /* !(CONFIG_NUMA && CONFIG_X86_32) */
@@ -209,7 +203,7 @@ static void __cpuinit smp_callin(void)
*/
phys_id = read_apic_id();
cpuid = smp_processor_id();
- if (cpu_isset(cpuid, cpu_callin_map)) {
+ if (cpumask_test_cpu(cpuid, cpu_callin_mask)) {
panic("%s: phys CPU#%d, CPU#%d already present??\n", __func__,
phys_id, cpuid);
}
@@ -231,7 +225,7 @@ static void __cpuinit smp_callin(void)
/*
* Has the boot CPU finished it's STARTUP sequence?
*/
- if (cpu_isset(cpuid, cpu_callout_map))
+ if (cpumask_test_cpu(cpuid, cpu_callout_mask))
break;
cpu_relax();
}
@@ -274,7 +268,7 @@ static void __cpuinit smp_callin(void)
/*
* Allow the master to continue.
*/
- cpu_set(cpuid, cpu_callin_map);
+ cpumask_set_cpu(cpuid, cpu_callin_mask);
}
static int __cpuinitdata unsafe_smp;
@@ -332,7 +326,7 @@ notrace static void __cpuinit start_secondary(void *unused)
ipi_call_lock();
lock_vector_lock();
__setup_vector_irq(smp_processor_id());
- cpu_set(smp_processor_id(), cpu_online_map);
+ set_cpu_online(smp_processor_id(), true);
unlock_vector_lock();
ipi_call_unlock();
per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
@@ -438,50 +432,52 @@ void __cpuinit set_cpu_sibling_map(int cpu)
int i;
struct cpuinfo_x86 *c = &cpu_data(cpu);
- cpu_set(cpu, cpu_sibling_setup_map);
+ cpumask_set_cpu(cpu, cpu_sibling_setup_mask);
if (smp_num_siblings > 1) {
- for_each_cpu_mask_nr(i, cpu_sibling_setup_map) {
- if (c->phys_proc_id == cpu_data(i).phys_proc_id &&
- c->cpu_core_id == cpu_data(i).cpu_core_id) {
- cpu_set(i, per_cpu(cpu_sibling_map, cpu));
- cpu_set(cpu, per_cpu(cpu_sibling_map, i));
- cpu_set(i, per_cpu(cpu_core_map, cpu));
- cpu_set(cpu, per_cpu(cpu_core_map, i));
- cpu_set(i, c->llc_shared_map);
- cpu_set(cpu, cpu_data(i).llc_shared_map);
+ for_each_cpu(i, cpu_sibling_setup_mask) {
+ struct cpuinfo_x86 *o = &cpu_data(i);
+
+ if (c->phys_proc_id == o->phys_proc_id &&
+ c->cpu_core_id == o->cpu_core_id) {
+ cpumask_set_cpu(i, cpu_sibling_mask(cpu));
+ cpumask_set_cpu(cpu, cpu_sibling_mask(i));
+ cpumask_set_cpu(i, cpu_core_mask(cpu));
+ cpumask_set_cpu(cpu, cpu_core_mask(i));
+ cpumask_set_cpu(i, &c->llc_shared_map);
+ cpumask_set_cpu(cpu, &o->llc_shared_map);
}
}
} else {
- cpu_set(cpu, per_cpu(cpu_sibling_map, cpu));
+ cpumask_set_cpu(cpu, cpu_sibling_mask(cpu));
}
- cpu_set(cpu, c->llc_shared_map);
+ cpumask_set_cpu(cpu, &c->llc_shared_map);
if (current_cpu_data.x86_max_cores == 1) {
- per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu);
+ cpumask_copy(cpu_core_mask(cpu), cpu_sibling_mask(cpu));
c->booted_cores = 1;
return;
}
- for_each_cpu_mask_nr(i, cpu_sibling_setup_map) {
+ for_each_cpu(i, cpu_sibling_setup_mask) {
if (per_cpu(cpu_llc_id, cpu) != BAD_APICID &&
per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
- cpu_set(i, c->llc_shared_map);
- cpu_set(cpu, cpu_data(i).llc_shared_map);
+ cpumask_set_cpu(i, &c->llc_shared_map);
+ cpumask_set_cpu(cpu, &cpu_data(i).llc_shared_map);
}
if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
- cpu_set(i, per_cpu(cpu_core_map, cpu));
- cpu_set(cpu, per_cpu(cpu_core_map, i));
+ cpumask_set_cpu(i, cpu_core_mask(cpu));
+ cpumask_set_cpu(cpu, cpu_core_mask(i));
/*
* Does this new cpu bringup a new core?
*/
- if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) {
+ if (cpumask_weight(cpu_sibling_mask(cpu)) == 1) {
/*
* for each core in package, increment
* the booted_cores for this new cpu
*/
- if (first_cpu(per_cpu(cpu_sibling_map, i)) == i)
+ if (cpumask_first(cpu_sibling_mask(i)) == i)
c->booted_cores++;
/*
* increment the core count for all
@@ -504,7 +500,7 @@ const struct cpumask *cpu_coregroup_mask(int cpu)
* And for power savings, we return cpu_core_map
*/
if (sched_mc_power_savings || sched_smt_power_savings)
- return &per_cpu(cpu_core_map, cpu);
+ return cpu_core_mask(cpu);
else
return &c->llc_shared_map;
}
@@ -523,7 +519,7 @@ static void impress_friends(void)
*/
pr_debug("Before bogomips.\n");
for_each_possible_cpu(cpu)
- if (cpu_isset(cpu, cpu_callout_map))
+ if (cpumask_test_cpu(cpu, cpu_callout_mask))
bogosum += cpu_data(cpu).loops_per_jiffy;
printk(KERN_INFO
"Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
@@ -904,19 +900,19 @@ do_rest:
* allow APs to start initializing.
*/
pr_debug("Before Callout %d.\n", cpu);
- cpu_set(cpu, cpu_callout_map);
+ cpumask_set_cpu(cpu, cpu_callout_mask);
pr_debug("After Callout %d.\n", cpu);
/*
* Wait 5s total for a response
*/
for (timeout = 0; timeout < 50000; timeout++) {
- if (cpu_isset(cpu, cpu_callin_map))
+ if (cpumask_test_cpu(cpu, cpu_callin_mask))
break; /* It has booted */
udelay(100);
}
- if (cpu_isset(cpu, cpu_callin_map)) {
+ if (cpumask_test_cpu(cpu, cpu_callin_mask)) {
/* number CPUs logically, starting from 1 (BSP is 0) */
pr_debug("OK.\n");
printk(KERN_INFO "CPU%d: ", cpu);
@@ -941,9 +937,14 @@ restore_state:
if (boot_error) {
/* Try to put things back the way they were before ... */
numa_remove_cpu(cpu); /* was set by numa_add_cpu */
- cpu_clear(cpu, cpu_callout_map); /* was set by do_boot_cpu() */
- cpu_clear(cpu, cpu_initialized); /* was set by cpu_init() */
- cpu_clear(cpu, cpu_present_map);
+
+ /* was set by do_boot_cpu() */
+ cpumask_clear_cpu(cpu, cpu_callout_mask);
+
+ /* was set by cpu_init() */
+ cpumask_clear_cpu(cpu, cpu_initialized_mask);
+
+ set_cpu_present(cpu, false);
per_cpu(x86_cpu_to_apicid, cpu) = BAD_APICID;
}
@@ -977,7 +978,7 @@ int __cpuinit native_cpu_up(unsigned int cpu)
/*
* Already booted CPU?
*/
- if (cpu_isset(cpu, cpu_callin_map)) {
+ if (cpumask_test_cpu(cpu, cpu_callin_mask)) {
pr_debug("do_boot_cpu %d Already started\n", cpu);
return -ENOSYS;
}
@@ -1032,8 +1033,9 @@ int __cpuinit native_cpu_up(unsigned int cpu)
*/
static __init void disable_smp(void)
{
- cpu_present_map = cpumask_of_cpu(0);
- cpu_possible_map = cpumask_of_cpu(0);
+ /* use the read/write pointers to the present and possible maps */
+ cpumask_copy(&cpu_present_map, cpumask_of(0));
+ cpumask_copy(&cpu_possible_map, cpumask_of(0));
smpboot_clear_io_apic_irqs();
if (smp_found_config)
@@ -1041,8 +1043,8 @@ static __init void disable_smp(void)
else
physid_set_mask_of_physid(0, &phys_cpu_present_map);
map_cpu_to_logical_apicid();
- cpu_set(0, per_cpu(cpu_sibling_map, 0));
- cpu_set(0, per_cpu(cpu_core_map, 0));
+ cpumask_set_cpu(0, cpu_sibling_mask(0));
+ cpumask_set_cpu(0, cpu_core_mask(0));
}
/*
@@ -1064,14 +1066,14 @@ static int __init smp_sanity_check(unsigned max_cpus)
nr = 0;
for_each_present_cpu(cpu) {
if (nr >= 8)
- cpu_clear(cpu, cpu_present_map);
+ set_cpu_present(cpu, false);
nr++;
}
nr = 0;
for_each_possible_cpu(cpu) {
if (nr >= 8)
- cpu_clear(cpu, cpu_possible_map);
+ set_cpu_possible(cpu, false);
nr++;
}
@@ -1167,7 +1169,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
preempt_disable();
smp_cpu_index_default();
current_cpu_data = boot_cpu_data;
- cpu_callin_map = cpumask_of_cpu(0);
+ cpumask_copy(cpu_callin_mask, cpumask_of(0));
mb();
/*
* Setup boot CPU information
@@ -1242,8 +1244,8 @@ void __init native_smp_prepare_boot_cpu(void)
init_gdt(me);
#endif
switch_to_new_gdt();
- /* already set me in cpu_online_map in boot_cpu_init() */
- cpu_set(me, cpu_callout_map);
+ /* already set me in cpu_online_mask in boot_cpu_init() */
+ cpumask_set_cpu(me, cpu_callout_mask);
per_cpu(cpu_state, me) = CPU_ONLINE;
}
@@ -1311,7 +1313,7 @@ __init void prefill_possible_map(void)
possible, max_t(int, possible - num_processors, 0));
for (i = 0; i < possible; i++)
- cpu_set(i, cpu_possible_map);
+ set_cpu_possible(i, true);
nr_cpu_ids = possible;
}
@@ -1323,31 +1325,31 @@ static void remove_siblinginfo(int cpu)
int sibling;
struct cpuinfo_x86 *c = &cpu_data(cpu);
- for_each_cpu_mask_nr(sibling, per_cpu(cpu_core_map, cpu)) {
- cpu_clear(cpu, per_cpu(cpu_core_map, sibling));
+ for_each_cpu(sibling, cpu_core_mask(cpu)) {
+ cpumask_clear_cpu(cpu, cpu_core_mask(sibling));
/*/
* last thread sibling in this cpu core going down
*/
- if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1)
+ if (cpumask_weight(cpu_sibling_mask(cpu)) == 1)
cpu_data(sibling).booted_cores--;
}
- for_each_cpu_mask_nr(sibling, per_cpu(cpu_sibling_map, cpu))
- cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling));
- cpus_clear(per_cpu(cpu_sibling_map, cpu));
- cpus_clear(per_cpu(cpu_core_map, cpu));
+ for_each_cpu(sibling, cpu_sibling_mask(cpu))
+ cpumask_clear_cpu(cpu, cpu_sibling_mask(sibling));
+ cpumask_clear(cpu_sibling_mask(cpu));
+ cpumask_clear(cpu_core_mask(cpu));
c->phys_proc_id = 0;
c->cpu_core_id = 0;
- cpu_clear(cpu, cpu_sibling_setup_map);
+ cpumask_clear_cpu(cpu, cpu_sibling_setup_mask);
}
static void __ref remove_cpu_from_maps(int cpu)
{
- cpu_clear(cpu, cpu_online_map);
- cpu_clear(cpu, cpu_callout_map);
- cpu_clear(cpu, cpu_callin_map);
+ set_cpu_online(cpu, false);
+ cpumask_clear_cpu(cpu, cpu_callout_mask);
+ cpumask_clear_cpu(cpu, cpu_callin_mask);
/* was set by cpu_init() */
- cpu_clear(cpu, cpu_initialized);
+ cpumask_clear_cpu(cpu, cpu_initialized_mask);
numa_remove_cpu(cpu);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 18:20:16 +0100