diff options
| author | Mark Gross <mgross@linux.intel.com> | 2020-04-16 17:23:10 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-04-20 12:19:21 +0200 |
| commit | e9d7144597b10ff13ff2264c059f7d4a7fbc89ac (patch) | |
| tree | 240825ee3e9d46eeb1a2dd222460bd36d6007e84 /include/linux/mod_devicetable.h | |
| parent | ae83d0b416db002fe95601e7f97f64b59514d936 (diff) | |
x86/cpu: Add a steppings field to struct x86_cpu_id
Intel uses the same family/model for several CPUs. Sometimes the
stepping must be checked to tell them apart.
On x86 there can be at most 16 steppings. Add a steppings bitmask to
x86_cpu_id and a X86_MATCH_VENDOR_FAMILY_MODEL_STEPPING_FEATURE macro
and support for matching against family/model/stepping.
[ bp: Massage. ]
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Diffstat (limited to 'include/linux/mod_devicetable.h')
| -rw-r--r-- | include/linux/mod_devicetable.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 4c2ddd0941a7..0754b8d71262 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -663,6 +663,7 @@ struct x86_cpu_id { __u16 vendor; __u16 family; __u16 model; + __u16 steppings; __u16 feature; /* bit index */ kernel_ulong_t driver_data; }; @@ -671,6 +672,7 @@ struct x86_cpu_id { #define X86_VENDOR_ANY 0xffff #define X86_FAMILY_ANY 0 #define X86_MODEL_ANY 0 +#define X86_STEPPING_ANY 0 #define X86_FEATURE_ANY 0 /* Same as FPU, you can't test for that */ /* |