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Diffstat (limited to 'src/soc/amd/picasso/cpu.c')
| -rw-r--r-- | src/soc/amd/picasso/cpu.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/cpu.c b/src/soc/amd/picasso/cpu.c index c42f400362..4d6e98d221 100644 --- a/src/soc/amd/picasso/cpu.c +++ b/src/soc/amd/picasso/cpu.c @@ -46,6 +46,15 @@ int get_cpu_count(void) return 1 + (cpuid_ecx(0x80000008) & 0xff); } +static void set_cstate_io_addr(void) +{ + msr_t cst_addr; + + cst_addr.hi = 0; + cst_addr.lo = ACPI_CPU_CONTROL; + wrmsr(MSR_CSTATE_ADDRESS, cst_addr); +} + static void fill_in_relocation_params(struct smm_relocation_params *params) { uintptr_t tseg_base; @@ -109,6 +118,7 @@ static void model_17_init(struct device *dev) { check_mca(); setup_lapic(); + set_cstate_io_addr(); amd_update_microcode_from_cbfs(); } |