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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-01-25 14:52:48 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-01-25 14:52:48 +0000 |
| commit | f1487fcbe47cd2bc0c71e8598bf9eb6a82dec544 (patch) | |
| tree | 4c7abed6047538c13dd024a8ecffd15f31b4609a /arch/x86/kernel/apic/apic.c | |
| parent | 84549d239ab9bb2e3a85c6efcf0e6478a38b4260 (diff) | |
| parent | 40aa7030e5213a43e9e0554fd7f95534ea310bf3 (diff) | |
| download | kernel-crypto-f1487fcbe47cd2bc0c71e8598bf9eb6a82dec544.tar.gz kernel-crypto-f1487fcbe47cd2bc0c71e8598bf9eb6a82dec544.tar.xz kernel-crypto-f1487fcbe47cd2bc0c71e8598bf9eb6a82dec544.zip | |
Merge branch 'for-2.6.33' into for-2.6.34
Diffstat (limited to 'arch/x86/kernel/apic/apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index aa57c079c98..3987e4408f7 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -61,12 +61,6 @@ 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 - * are in the 0 ... 7 range, then we can use logical addressing which - * has some performance advantages (better broadcasting). - * - * If there's an APIC ID above 8, we use physical addressing. */ unsigned int max_physical_apicid; @@ -1898,14 +1892,17 @@ 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) + if (num_processors > 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 |