intel/common/cpulib: Add API to configure MCA
Add mca_configure() API to configure Intel Machine Check Architecture (MCA). Change-Id: I5e88c7527ce350824e48892caa978b2b78f1de20 Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com> Reviewed-on: https://review.coreboot.org/21239 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lijian Zhao <lijian.zhao@intel.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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@ -296,3 +296,21 @@ uint32_t cpu_get_max_turbo_ratio(void)
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msr = rdmsr(MSR_TURBO_RATIO_LIMIT);
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return msr.lo & 0xff;
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}
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void mca_configure(void)
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{
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msr_t msr;
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int i;
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int num_banks;
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msr = rdmsr(IA32_MCG_CAP);
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num_banks = msr.lo & 0xff;
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msr.lo = msr.hi = 0;
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for (i = 0; i < num_banks; i++) {
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/* Clear the machine check status */
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wrmsr(IA32_MC0_STATUS + (i * 4), msr);
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/* Initialize machine checks */
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wrmsr(IA32_MC0_CTL + i * 4,
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(msr_t) {.lo = 0xffffffff, .hi = 0xffffffff});
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}
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}
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@ -156,4 +156,7 @@ uint32_t cpu_get_power_max(void);
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*/
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uint32_t cpu_get_max_turbo_ratio(void);
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/* Configure Machine Check Architecture support */
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void mca_configure(void);
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#endif /* SOC_INTEL_COMMON_BLOCK_CPULIB_H */
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