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soc/amd/cezanne: add downcoring and SMT disable settings to devicetree 

BUG=b:184162768
TEST=none

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Id03454ed2be242bce9497560c089f75046ed7e32
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52197
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Felix Held 2021-04-08 22:25:19 +02:00
parent 02bfbf4430
commit d0b5164cd0
2 changed files with 19 additions and 0 deletions
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12
src/soc/amd/cezanne/chip.h
View File

@ -15,6 +15,18 @@ struct soc_amd_cezanne_config {
/* Enable S0iX support */
bool s0ix_enable;
enum {
DOWNCORE_AUTO = 0,
DOWNCORE_1 = 1, /* Run with 1 physical core */
DOWNCORE_2 = 3, /* Run with 2 physical cores */
DOWNCORE_3 = 4, /* Run with 3 physical cores */
DOWNCORE_4 = 6, /* Run with 4 physical cores */
DOWNCORE_5 = 8, /* Run with 5 physical cores */
DOWNCORE_6 = 9, /* Run with 6 physical cores */
DOWNCORE_7 = 10, /* Run with 7 physical cores */
} downcore_mode;
bool disable_smt; /* disable second thread on all physical cores */
};
#endif /* CEZANNE_CHIP_H */

7
src/soc/amd/cezanne/fsp_m_params.c
View File

@ -4,10 +4,12 @@
#include <amdblocks/memmap.h>
#include <assert.h>
#include <console/uart.h>
#include <device/device.h>
#include <fsp/api.h>
#include <soc/platform_descriptors.h>
#include <string.h>
#include <types.h>
#include "chip.h"
static void fill_dxio_descriptors(FSP_M_CONFIG *mcfg,
const fsp_dxio_descriptor *descs, size_t num)
@ -51,6 +53,7 @@ static void fsp_fill_pcie_ddi_descriptors(FSP_M_CONFIG *mcfg)
void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
{
FSP_M_CONFIG *mcfg = &mupd->FspmConfig;
const struct soc_amd_cezanne_config *config = config_of_soc();
mupd->FspmArchUpd.NvsBufferPtr = (uintptr_t)soc_fill_apob_cache();
@ -62,5 +65,9 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
mcfg->serial_port_baudrate = get_uart_baudrate();
mcfg->serial_port_refclk = uart_platform_refclk();
/* 0 is default */
mcfg->ccx_down_core_mode = config->downcore_mode;
mcfg->ccx_disable_smt = config->disable_smt;
fsp_fill_pcie_ddi_descriptors(mcfg);
}