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vc/amd/fsp/cezanne,mendocino: add FSP CCX CPPC HOB GUID and struct

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To generate a complete _CPC ACPI object, coreboot needs the minimal and
nominal core speed values which are specific to the CPU and not only the
CPU family. Since this is done by an undocumented mechanism, FSP has to
do this and puts the information we need into a HOB. This adds the HOB
GUID and the structure of the HOB data.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Change-Id: Ibf338c32de367a3fd57695873da1625338fa196d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66549
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Felix Held
2022-08-08 21:27:32 +02:00
committed by Martin Roth
parent 5e0cd9fd4b
commit b65845cb2b
4 changed files with 42 additions and 0 deletions
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4
src/vendorcode/amd/fsp/cezanne/FspGuids.h
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@ -17,4 +17,8 @@
GUID_INIT(0X6D5CD69D, 0XFB24, 0X4461, \
0XAA, 0X32, 0X8E, 0XE1, 0XB3, 0X3, 0X31, 0X9C )
#define AMD_FSP_CCX_CPPC_DATA_HOB_GUID \
GUID_INIT(0x3060C5EC, 0x7399, 0x432D, \
0xBC, 0x97, 0xBF, 0x95, 0xE4, 0x3D, 0x53, 0x0C )
#endif /* __FSP_GUIDS__ */

17
src/vendorcode/amd/fsp/cezanne/ccx_cppc_data.h Normal file
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@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef CEZANNE_FSP_CCX_CPPC_DATA_H
#define CEZANNE_FSP_CCX_CPPC_DATA_H
#include <types.h>
#define FSP_CCX_CPPC_DATA_VERSION 1
struct fsp_ccx_cppc_data {
uint8_t version;
uint8_t unused[3];
uint32_t ccx_cppc_min_speed;
uint32_t ccx_cppc_nom_speed;
} __packed;
#endif /* CEZANNE_FSP_CCX_CPPC_DATA_H */

4
src/vendorcode/amd/fsp/mendocino/FspGuids.h
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@ -17,4 +17,8 @@
GUID_INIT(0X6D5CD69D, 0XFB24, 0X4461, \
0XAA, 0X32, 0X8E, 0XE1, 0XB3, 0X3, 0X31, 0X9C )
#define AMD_FSP_CCX_CPPC_DATA_HOB_GUID \
GUID_INIT(0x3060C5EC, 0x7399, 0x432D, \
0xBC, 0x97, 0xBF, 0x95, 0xE4, 0x3D, 0x53, 0x0C )
#endif /* __FSP_GUIDS__ */

17
src/vendorcode/amd/fsp/mendocino/ccx_cppc_data.h Normal file
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@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef SABRINA_FSP_CCX_CPPC_DATA_H
#define SABRINA_FSP_CCX_CPPC_DATA_H
#include <types.h>
#define FSP_CCX_CPPC_DATA_VERSION 1
struct fsp_ccx_cppc_data {
uint8_t version;
uint8_t unused[3];
uint32_t ccx_cppc_min_speed;
uint32_t ccx_cppc_nom_speed;
} __packed;
#endif /* SABRINA_FSP_CCX_CPPC_DATA_H */