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authorLinus Torvalds <torvalds@linux-foundation.org>2024-11-19 12:27:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-11-19 12:27:19 -0800
commitd8d78a90e7fca1ce7c90fa791400b287bc5b42a1 (patch)
tree947c6f372e7110c478fd1096f848fd2fb16b0f6a /arch/x86/include/asm/processor.h
parent55db8eb4565f943dc0ebd1327cbe3d9d684f74e8 (diff)
parentf74642d81c24d9e69745cd0b75e1bddc81827606 (diff)
Merge tag 'x86_cpu_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpuid updates from Borislav Petkov: - Add a feature flag which denotes AMD CPUs supporting workload classification with the purpose of using such hints when making scheduling decisions - Determine the boost enumerator for each AMD core based on its type: efficiency or performance, in the cppc driver - Add the type of a CPU to the topology CPU descriptor with the goal of supporting and making decisions based on the type of the respective core - Add a feature flag to denote AMD cores which have heterogeneous topology and enable SD_ASYM_PACKING for those - Check microcode revisions before disabling PCID on Intel - Cleanups and fixlets * tag 'x86_cpu_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Remove redundant CONFIG_NUMA guard around numa_add_cpu() x86/cpu: Fix FAM5_QUARK_X1000 to use X86_MATCH_VFM() x86/cpu: Fix formatting of cpuid_bits[] in scattered.c x86/cpufeatures: Add X86_FEATURE_AMD_WORKLOAD_CLASS feature bit x86/amd: Use heterogeneous core topology for identifying boost numerator x86/cpu: Add CPU type to struct cpuinfo_topology x86/cpu: Enable SD_ASYM_PACKING for PKG domain on AMD x86/cpufeatures: Add X86_FEATURE_AMD_HETEROGENEOUS_CORES x86/cpufeatures: Rename X86_FEATURE_FAST_CPPC to have AMD prefix x86/mm: Don't disable PCID when INVLPG has been fixed by microcode
Diffstat (limited to 'arch/x86/include/asm/processor.h')
-rw-r--r--arch/x86/include/asm/processor.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 4a686f0e5dbf..c0975815980c 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -105,6 +105,24 @@ struct cpuinfo_topology {
// Cache level topology IDs
u32 llc_id;
u32 l2c_id;
+
+ // Hardware defined CPU-type
+ union {
+ u32 cpu_type;
+ struct {
+ // CPUID.1A.EAX[23-0]
+ u32 intel_native_model_id :24;
+ // CPUID.1A.EAX[31-24]
+ u32 intel_type :8;
+ };
+ struct {
+ // CPUID 0x80000026.EBX
+ u32 amd_num_processors :16,
+ amd_power_eff_ranking :8,
+ amd_native_model_id :4,
+ amd_type :4;
+ };
+ };
};
struct cpuinfo_x86 {