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soc/amd/cezanne/smihandler: implement S3 entry SMI handler

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Since the support for the GSMI ELOG isn't implemented in the SMI handler
yet, the corresponding code isn't added to fch_slp_typ_handler in this
patch.

BUG=b:181766974

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ia27b2486dde1a373607ce895a975e873d9026ba1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51234
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
This commit is contained in:
Felix Held
2021-03-03 19:03:37 +01:00
parent 7f3f52d7c6
commit 913dcf6482
1 changed files with 23 additions and 1 deletions
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24
src/soc/amd/cezanne/smihandler.c
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@@ -9,8 +9,11 @@
#include <arch/hlt.h> #include <arch/hlt.h>
#include <arch/io.h> #include <arch/io.h>
#include <console/console.h> #include <console/console.h>
#include <cpu/x86/cache.h>
#include <cpu/x86/smm.h> #include <cpu/x86/smm.h>
#include <soc/smi.h> #include <soc/smi.h>
#include <soc/smu.h>
#include <soc/southbridge.h>
#include <types.h> #include <types.h>
static void fch_apmc_smi_handler(void) static void fch_apmc_smi_handler(void)
@@ -34,8 +37,9 @@ static void fch_apmc_smi_handler(void)
static void fch_slp_typ_handler(void) static void fch_slp_typ_handler(void)
{ {
uint32_t pci_ctrl;
uint16_t pm1cnt; uint16_t pm1cnt;
uint8_t slp_typ; uint8_t slp_typ, rst_ctrl;
/* Figure out SLP_TYP */ /* Figure out SLP_TYP */
pm1cnt = acpi_read16(MMIO_ACPI_PM1_CNT_BLK); pm1cnt = acpi_read16(MMIO_ACPI_PM1_CNT_BLK);
@@ -64,6 +68,24 @@ static void fch_slp_typ_handler(void)
} }
if (slp_typ >= ACPI_S3) { if (slp_typ >= ACPI_S3) {
wbinvd();
clear_all_smi_status();
/* Do not send SMI before AcpiPm1CntBlkx00[SlpTyp] */
pci_ctrl = pm_read32(PM_PCI_CTRL);
pci_ctrl &= ~FORCE_SLPSTATE_RETRY;
pm_write32(PM_PCI_CTRL, pci_ctrl);
/* Enable SlpTyp */
rst_ctrl = pm_read8(PM_RST_CTRL1);
rst_ctrl |= SLPTYPE_CONTROL_EN;
pm_write8(PM_RST_CTRL1, rst_ctrl);
if (slp_typ == ACPI_S3)
psp_notify_sx_info(ACPI_S3);
smu_sx_entry(); /* Leave SlpTypeEn clear, SMU will set */
printk(BIOS_ERR, "Error: System did not go to sleep\n"); printk(BIOS_ERR, "Error: System did not go to sleep\n");
hlt(); hlt();
} }