On Wed, Sep 25, 2019 at 10:13 PM Simon Glass sjg@chromium.org wrote:
Add cpu_intel_get_info() to find out the CPU info on modern Intel CPUs.
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v2: None
arch/x86/cpu/broadwell/cpu_full.c | 9 +-------- arch/x86/cpu/intel_common/cpu.c | 13 +++++++++++++ arch/x86/cpu/ivybridge/model_206ax.c | 8 ++------ arch/x86/include/asm/cpu_common.h | 11 +++++++++++ 4 files changed, 27 insertions(+), 14 deletions(-)
[snip]
diff --git a/arch/x86/include/asm/cpu_common.h b/arch/x86/include/asm/cpu_common.h index 4c91a5daced..0d560262d5a 100644 --- a/arch/x86/include/asm/cpu_common.h +++ b/arch/x86/include/asm/cpu_common.h @@ -8,6 +8,8 @@
#define IA32_PERF_CTL 0x199
+struct cpu_info;
/**
- cpu_common_init() - Set up common CPU init
@@ -31,4 +33,13 @@ int cpu_common_init(void); */ int cpu_set_flex_ratio_to_tdp_nominal(void);
+/**
- cpu_intel_get_info() - Obtain CPU info for Intel CPUs
- Most Intel CPUs use the same MSR to obtain the clock speed, and use the same
- features. This function fills in these values, given the value of the base
- clock in MHz (typically this should be set to 100).
nits: please add parameter and return value descriptions.
- */
+int cpu_intel_get_info(struct cpu_info *info, int bclk_mz);
#endif
Other than that, Reviewed-by: Bin Meng bmeng.cn@gmail.com