diff options
| author | Takashi Iwai <tiwai@suse.de> | 2010-01-19 15:53:43 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-01-19 15:53:43 +0100 |
| commit | 9e4c84967ef027fe50a03cf48dd6da9519c8e60c (patch) | |
| tree | 21d6b8168670f22521f3bb703e3b9d1932566c1c /arch/x86/kernel/apic/apic.c | |
| parent | d2f2fcd2541bae004db7f4798ffd9d2cb75ae817 (diff) | |
| parent | 3fb4a508b8e7957aa899f32cd6d9d462e102c7ca (diff) | |
Merge branch 'fix/hda' into topic/hda
Conflicts:
sound/pci/hda/patch_realtek.c
Diffstat (limited to 'arch/x86/kernel/apic/apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index aa57c079c98f..e80f291472a4 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -62,7 +62,7 @@ unsigned int boot_cpu_physical_apicid = -1U; /* * The highest APIC ID seen during enumeration. * - * On AMD, this determines the messaging protocol we can use: if all APIC IDs + * This determines the messaging protocol we can use: if all APIC IDs * are in the 0 ... 7 range, then we can use logical addressing which * has some performance advantages (better broadcasting). * @@ -1898,14 +1898,24 @@ void __cpuinit generic_processor_info(int apicid, int version) max_physical_apicid = apicid; #ifdef CONFIG_X86_32 - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_INTEL: - if (num_processors > 8) - def_to_bigsmp = 1; - break; - case X86_VENDOR_AMD: - if (max_physical_apicid >= 8) + /* + * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y + * but we need to work other dependencies like SMP_SUSPEND etc + * before this can be done without some confusion. + * if (CPU_HOTPLUG_ENABLED || num_processors > 8) + * - Ashok Raj <ashok.raj@intel.com> + */ + if (max_physical_apicid >= 8) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_INTEL: + if (!APIC_XAPIC(version)) { + def_to_bigsmp = 0; + break; + } + /* If P4 and above fall through */ + case X86_VENDOR_AMD: def_to_bigsmp = 1; + } } #endif |