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| author | Ingo Molnar <mingo@kernel.org> | 2019-02-11 08:00:26 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-02-11 08:00:26 +0100 |
| commit | f26d9db21bf9b5dbfe17a5bc3bdf4ca6c961c924 (patch) | |
| tree | 6c9dadc987c86b234ce31774f466b0ee60bbdc45 /arch/x86/include | |
| parent | 6854daa07a29b0e27f7017fe23a24e595d1f7617 (diff) | |
| parent | 0f42b790c9ba5ec2f25b7da8b0b6d361082d67b0 (diff) | |
| download | linux-0-day-f26d9db21bf9b5dbfe17a5bc3bdf4ca6c961c924.tar.gz linux-0-day-f26d9db21bf9b5dbfe17a5bc3bdf4ca6c961c924.tar.xz | |
Merge branch 'x86/cpu' into perf/core, to pick up dependent commit
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/cpu_device_id.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h index baeba05671268..3417110574c12 100644 --- a/arch/x86/include/asm/cpu_device_id.h +++ b/arch/x86/include/asm/cpu_device_id.h @@ -11,4 +11,32 @@ extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); +/* + * Match specific microcode revisions. + * + * vendor/family/model/stepping must be all set. + * + * Only checks against the boot CPU. When mixed-stepping configs are + * valid for a CPU model, add a quirk for every valid stepping and + * do the fine-tuning in the quirk handler. + */ + +struct x86_cpu_desc { + __u8 x86_family; + __u8 x86_vendor; + __u8 x86_model; + __u8 x86_stepping; + __u32 x86_microcode_rev; +}; + +#define INTEL_CPU_DESC(mod, step, rev) { \ + .x86_family = 6, \ + .x86_vendor = X86_VENDOR_INTEL, \ + .x86_model = mod, \ + .x86_stepping = step, \ + .x86_microcode_rev = rev, \ +} + +extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table); + #endif |