diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-03-06 13:46:39 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:40:58 +0200 |
| commit | 01aaea1afbcdb7c49fe4a567ebe3e295db9f720d (patch) | |
| tree | 21974b32aad2b004d2ac67bf5ee7d8812d0d30cd /arch/x86/kernel/setup_64.c | |
| parent | 459cce726730ca0ac93701e53aa1d0d055ce9e90 (diff) | |
x86: introduce initial apicid
store initial_apicid from early identify. it is could be different from
phys_proc_id later.
also print it out in /proc/cpuinfo.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/setup_64.c')
| -rw-r--r-- | arch/x86/kernel/setup_64.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index f303c70dd68..13fe525bf06 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -562,9 +562,9 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c) bits = c->x86_coreid_bits; /* Low order bits define the core id (index of core in socket) */ - c->cpu_core_id = c->phys_proc_id & ((1 << bits)-1); - /* Convert the APIC ID into the socket ID */ - c->phys_proc_id = (c->apicid - boot_cpu_id) >> bits; + c->cpu_core_id = c->initial_apicid & ((1 << bits)-1); + /* Convert the initial APIC ID into the socket ID */ + c->phys_proc_id = c->initial_apicid >> bits; #ifdef CONFIG_NUMA node = c->phys_proc_id; @@ -581,7 +581,7 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c) If that doesn't result in a usable node fall back to the path for the previous case. */ - int ht_nodeid = apicid - boot_cpu_id; + int ht_nodeid = c->initial_apicid; if (ht_nodeid >= 0 && apicid_to_node[ht_nodeid] != NUMA_NO_NODE) @@ -936,8 +936,9 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c) c->x86 = 4; } + c->initial_apicid = (cpuid_ebx(1) >> 24) & 0xff; #ifdef CONFIG_SMP - c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff; + c->phys_proc_id = c->initial_apicid; #endif /* AMD-defined flags: level 0x80000001 */ xlvl = cpuid_eax(0x80000000); |