diff options
| author | Jason Glenesk <jason.glenesk@amd.corp-partner.google.com> | 2020-09-14 05:22:47 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2020-09-25 22:49:56 +0000 |
| commit | bc5214342f70e7b2187a3e2e02a9d2bfc284a82c (patch) | |
| tree | 6fe0f9dcf4a70436bc5ed622bddce67402d368a6 /src/soc/amd/picasso/include | |
| parent | ebd234e059ce13d28d25fcac133dfde94a069226 (diff) | |
soc/amd/picasso: Generate ACPI pstate and cstate objects in cb
Add code to generate p-state and c-state SSDT objects to coreboot.
Publish objects generated in native coreboot, rather than the ones
created by FSP binary.
BUG=b:155307433
TEST=Boot morphius to shell and extract and compare objects created in
coreboot with tables generated by FSP. Confirm they are equivalent.
BRANCH=Zork
Change-Id: I5f4db3c0c2048ea1d6c6ce55f5e252cb15598514
Signed-off-by: Jason Glenesk <jason.glenesk@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45340
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Diffstat (limited to 'src/soc/amd/picasso/include')
| -rw-r--r-- | src/soc/amd/picasso/include/soc/msr.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/include/soc/msr.h b/src/soc/amd/picasso/include/soc/msr.h new file mode 100644 index 0000000000..0743ba0c9e --- /dev/null +++ b/src/soc/amd/picasso/include/soc/msr.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* This file applies to AMD64 products. + * The definitions come from the device's PPR. + */ + +#ifndef SOC_AMD_PICASSO_MSR_H +#define SOC_AMD_PICASSO_MSR_H + +/* MSRC001_00[6B:64] P-state [7:0] bit definitions */ +#define PSTATE_DEF_HI_ENABLE_SHIFT 31 +#define PSTATE_DEF_HI_ENABLE_MASK (0x1 << PSTATE_DEF_HI_ENABLE_SHIFT) +#define PSTATE_DEF_LO_CUR_DIV_SHIFT 30 +#define PSTATE_DEF_LO_CUR_DIV_MASK (0x3 << PSTATE_DEF_LO_CUR_DIV_SHIFT) +#define PSTATE_DEF_LO_CUR_VAL_SHIFT 22 +#define PSTATE_DEF_LO_CUR_VAL_MASK (0xFF << PSTATE_DEF_LO_CUR_VAL_SHIFT) +#define PSTATE_DEF_LO_CORE_VID_SHIFT 14 +#define PSTATE_DEF_LO_CORE_VID_MASK (0xFF << PSTATE_DEF_LO_CORE_VID_SHIFT) +#define PSTATE_DEF_LO_FREQ_DIV_SHIFT 8 +#define PSTATE_DEF_LO_FREQ_DIV_MASK (0x3F << PSTATE_DEF_LO_FREQ_DIV_SHIFT) +#define PSTATE_DEF_LO_FREQ_DIV_MIN 0x8 +#define PSTATE_DEF_LO_EIGHTH_STEP_MAX 0x1A +#define PSTATE_DEF_LO_FREQ_DIV_MAX 0x3E +#define PSTATE_DEF_LO_FREQ_MUL_SHIFT 0 +#define PSTATE_DEF_LO_FREQ_MUL_MASK (0xFF << PSTATE_DEF_LO_FREQ_MUL_SHIFT) +#define PSTATE_DEF_LO_CORE_FREQ_BASE 25 + +#endif /* SOC_AMD_PICASSO_MSR_H */ |