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[PATCH] i386: move phys_proc_id and cpu_core_id to cpuinfo_x86
Move the phys_core_id and cpu_core_id to cpuinfo_x86 structure. Similar patch for x86_64 is already accepted by Andi earlier this week. [akpm@osdl.org: fix warning] Signed-off-by: Rohit Seth <rohitseth@google.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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7f35bf929f
commit
4b89aff930
6 changed files with 24 additions and 31 deletions
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@ -235,10 +235,10 @@ static void __init init_amd(struct cpuinfo_x86 *c)
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while ((1 << bits) < c->x86_max_cores)
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bits++;
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}
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cpu_core_id[cpu] = phys_proc_id[cpu] & ((1<<bits)-1);
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phys_proc_id[cpu] >>= bits;
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c->cpu_core_id = c->phys_proc_id & ((1<<bits)-1);
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c->phys_proc_id >>= bits;
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printk(KERN_INFO "CPU %d(%d) -> Core %d\n",
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cpu, c->x86_max_cores, cpu_core_id[cpu]);
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cpu, c->x86_max_cores, c->cpu_core_id);
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}
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#endif
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@ -319,7 +319,7 @@ void __cpuinit generic_identify(struct cpuinfo_x86 * c)
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early_intel_workaround(c);
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#ifdef CONFIG_X86_HT
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phys_proc_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
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c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
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#endif
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}
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@ -477,11 +477,9 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
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{
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u32 eax, ebx, ecx, edx;
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int index_msb, core_bits;
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int cpu = smp_processor_id();
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cpuid(1, &eax, &ebx, &ecx, &edx);
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if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY))
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return;
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@ -492,16 +490,17 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
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} else if (smp_num_siblings > 1 ) {
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if (smp_num_siblings > NR_CPUS) {
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printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
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printk(KERN_WARNING "CPU: Unsupported number of the "
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"siblings %d", smp_num_siblings);
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smp_num_siblings = 1;
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return;
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}
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index_msb = get_count_order(smp_num_siblings);
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phys_proc_id[cpu] = phys_pkg_id((ebx >> 24) & 0xFF, index_msb);
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c->phys_proc_id = phys_pkg_id((ebx >> 24) & 0xFF, index_msb);
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printk(KERN_INFO "CPU: Physical Processor ID: %d\n",
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phys_proc_id[cpu]);
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c->phys_proc_id);
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smp_num_siblings = smp_num_siblings / c->x86_max_cores;
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@ -509,12 +508,12 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
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core_bits = get_count_order(c->x86_max_cores);
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cpu_core_id[cpu] = phys_pkg_id((ebx >> 24) & 0xFF, index_msb) &
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c->cpu_core_id = phys_pkg_id((ebx >> 24) & 0xFF, index_msb) &
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((1 << core_bits) - 1);
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if (c->x86_max_cores > 1)
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printk(KERN_INFO "CPU: Processor Core ID: %d\n",
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cpu_core_id[cpu]);
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c->cpu_core_id);
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}
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}
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#endif
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@ -109,9 +109,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
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seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
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#ifdef CONFIG_X86_HT
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if (c->x86_max_cores * smp_num_siblings > 1) {
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seq_printf(m, "physical id\t: %d\n", phys_proc_id[n]);
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seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
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seq_printf(m, "siblings\t: %d\n", cpus_weight(cpu_core_map[n]));
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seq_printf(m, "core id\t\t: %d\n", cpu_core_id[n]);
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seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
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seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
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}
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#endif
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@ -67,12 +67,6 @@ int smp_num_siblings = 1;
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EXPORT_SYMBOL(smp_num_siblings);
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#endif
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/* Package ID of each logical CPU */
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int phys_proc_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
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/* Core ID of each logical CPU */
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int cpu_core_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
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/* Last level cache ID of each logical CPU */
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int cpu_llc_id[NR_CPUS] __cpuinitdata = {[0 ... NR_CPUS-1] = BAD_APICID};
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@ -473,8 +467,8 @@ set_cpu_sibling_map(int cpu)
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if (smp_num_siblings > 1) {
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for_each_cpu_mask(i, cpu_sibling_setup_map) {
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if (phys_proc_id[cpu] == phys_proc_id[i] &&
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cpu_core_id[cpu] == cpu_core_id[i]) {
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if (c[cpu].phys_proc_id == c[i].phys_proc_id &&
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c[cpu].cpu_core_id == c[i].cpu_core_id) {
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cpu_set(i, cpu_sibling_map[cpu]);
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cpu_set(cpu, cpu_sibling_map[i]);
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cpu_set(i, cpu_core_map[cpu]);
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@ -501,7 +495,7 @@ set_cpu_sibling_map(int cpu)
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cpu_set(i, c[cpu].llc_shared_map);
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cpu_set(cpu, c[i].llc_shared_map);
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}
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if (phys_proc_id[cpu] == phys_proc_id[i]) {
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if (c[cpu].phys_proc_id == c[i].phys_proc_id) {
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cpu_set(i, cpu_core_map[cpu]);
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cpu_set(cpu, cpu_core_map[i]);
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/*
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@ -1353,8 +1347,8 @@ remove_siblinginfo(int cpu)
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cpu_clear(cpu, cpu_sibling_map[sibling]);
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cpus_clear(cpu_sibling_map[cpu]);
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cpus_clear(cpu_core_map[cpu]);
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phys_proc_id[cpu] = BAD_APICID;
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cpu_core_id[cpu] = BAD_APICID;
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c[cpu].phys_proc_id = 0;
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c[cpu].cpu_core_id = 0;
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cpu_clear(cpu, cpu_sibling_setup_map);
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}
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@ -71,8 +71,12 @@ struct cpuinfo_x86 {
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cpumask_t llc_shared_map; /* cpus sharing the last level cache */
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#endif
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unsigned char x86_max_cores; /* cpuid returned max cores value */
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unsigned char booted_cores; /* number of cores as seen by OS */
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unsigned char apicid;
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#ifdef CONFIG_SMP
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unsigned char booted_cores; /* number of cores as seen by OS */
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__u8 phys_proc_id; /* Physical processor id. */
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__u8 cpu_core_id; /* Core id */
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#endif
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} __attribute__((__aligned__(SMP_CACHE_BYTES)));
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#define X86_VENDOR_INTEL 0
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@ -104,8 +108,6 @@ extern struct cpuinfo_x86 cpu_data[];
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#define current_cpu_data boot_cpu_data
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#endif
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extern int phys_proc_id[NR_CPUS];
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extern int cpu_core_id[NR_CPUS];
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extern int cpu_llc_id[NR_CPUS];
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extern char ignore_fpu_irq;
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@ -28,10 +28,8 @@
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#define _ASM_I386_TOPOLOGY_H
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#ifdef CONFIG_X86_HT
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#define topology_physical_package_id(cpu) \
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(phys_proc_id[cpu] == BAD_APICID ? -1 : phys_proc_id[cpu])
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#define topology_core_id(cpu) \
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(cpu_core_id[cpu] == BAD_APICID ? 0 : cpu_core_id[cpu])
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#define topology_physical_package_id(cpu) (cpu_data[cpu].phys_proc_id)
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#define topology_core_id(cpu) (cpu_data[cpu].cpu_core_id)
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#define topology_core_siblings(cpu) (cpu_core_map[cpu])
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#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu])
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#endif
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