GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

soc/amd/cezanne/smihandler: add ELOG and SMMSTORE support 

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I6bad684bc6a36bb4a2b83d10ff9da1c136f8bbd9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51356
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Felix Held 2021-03-09 00:08:52 +01:00
parent 6890d935d8
commit 3680e02e9e
1 changed files with 36 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/soc/amd/cezanne/smihandler.c
View File

@ -11,6 +11,7 @@
#include <console/console.h>
#include <cpu/x86/cache.h>
#include <cpu/x86/smm.h>
#include <elog.h>
#include <soc/smi.h>
#include <soc/smu.h>
#include <soc/southbridge.h>
@ -27,6 +28,14 @@ static void fch_apmc_smi_handler(void)
case APM_CNT_ACPI_DISABLE:
acpi_disable_sci();
break;
case APM_CNT_ELOG_GSMI:
if (CONFIG(ELOG_GSMI))
handle_smi_gsmi();
break;
case APM_CNT_SMMSTORE:
if (CONFIG(SMMSTORE))
handle_smi_store();
break;
case APM_CNT_SMMINFO:
psp_notify_smm();
break;
@ -37,8 +46,8 @@ static void fch_apmc_smi_handler(void)
static void fch_slp_typ_handler(void)
{
uint32_t pci_ctrl;
uint16_t pm1cnt;
uint32_t pci_ctrl, reg32;
uint16_t pm1cnt, reg16;
uint8_t slp_typ, rst_ctrl;
/* Figure out SLP_TYP */
@ -82,6 +91,31 @@ static void fch_slp_typ_handler(void)
rst_ctrl |= SLPTYPE_CONTROL_EN;
pm_write8(PM_RST_CTRL1, rst_ctrl);
/*
* Before the final command, check if there's pending wake
* event. Read enable first, so that reading the actual status
* is as close as possible to entering S3. The idea is to
* minimize the opportunity for a wake event to happen before
* actually entering S3. If there's a pending wake event, log
* it and continue normal path. S3 will fail and the wake event
* becomes a SCI.
*/
if (CONFIG(ELOG_GSMI)) {
reg16 = acpi_read16(MMIO_ACPI_PM1_EN);
reg16 &= acpi_read16(MMIO_ACPI_PM1_STS);
if (reg16)
elog_add_extended_event(
ELOG_SLEEP_PENDING_PM1_WAKE,
(u32)reg16);
reg32 = acpi_read32(MMIO_ACPI_GPE0_EN);
reg32 &= acpi_read32(MMIO_ACPI_GPE0_STS);
if (reg32)
elog_add_extended_event(
ELOG_SLEEP_PENDING_GPE0_WAKE,
reg32);
} /* if (CONFIG(ELOG_GSMI)) */
if (slp_typ == ACPI_S3)
psp_notify_sx_info(ACPI_S3);