coreboot-kgpe-d16/src/soc/intel/cannonlake/elog.c

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/*
* This file is part of the coreboot project.
*
* Copyright 2015 Intel Corporation.
* Copyright 2019 Google LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <bootstate.h>
#include <cbmem.h>
#include <console/console.h>
#include <stdint.h>
#include <elog.h>
#include <intelblocks/pmclib.h>
soc/intel/cannonlake: Add support to log XHCI wake events Enhance elog wake source information with more details about which USB port resulted in a wake from S3 or S0ix. BUG=b:123429132 BRANCH=none TEST=``FW_NAME=hatch emerge-hatch chromeos-ec depthcharge vboot_reference libpayload coreboot-private-files intel-cmlfsp coreboot-private-files-hatch coreboot chromeos-bootimage`` Ensure /build/hatch/firmware/image-hatch.serial.bin has been built. Plug a keyboard into a USB port on the DUT. Switch the DUT to the console (Ctrl-Alt-F2, or use the AP console via servo). On the console, run ``powerd_dbus_suspend``. Wait for the DUT to enter low power mode. Verify low power mode by issuing the ``powerinfo`` command on the EC console (via servo). Expect to see ``power state 4 = S0ix``. Press a key on the USB keyboard. The DUT wakes up. On the console, run ``mosys eventlog list`` and look for the wake source. 156 | 2019-06-26 09:46:07 | S0ix Enter 157 | 2019-06-26 12:14:05 | S0ix Exit 158 | 2019-06-26 12:14:05 | Wake Source | Internal PME | 0 159 | 2019-06-26 12:14:05 | Wake Source | GPE # | 109 Program image-hatch.serial.bin into the DUT using flashrom. Repeat the ``powerd_dbus_suspend``, ``powerinfo``, ``mosys eventlog list`` sequence. 12 | 2019-06-26 14:52:23 | S0ix Enter 13 | 2019-06-26 14:53:07 | S0ix Exit 14 | 2019-06-26 14:53:07 | Wake Source | PME - XHCI (USB 2.0 port) | 3 15 | 2019-06-26 14:53:07 | Wake Source | GPE # | 109 Change-Id: Ie9ef870e219733dea9806c766f5351db25689b32 Signed-off-by: Paul Fagerburg <pfagerburg@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33843 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2019-06-27 18:44:51 +02:00
#include <intelblocks/xhci.h>
#include <soc/pci_devs.h>
#include <soc/pm.h>
static void pch_log_gpio_gpe(u32 gpe0_sts, u32 gpe0_en, int start)
{
int i;
gpe0_sts &= gpe0_en;
for (i = 0; i <= 31; i++) {
if (gpe0_sts & (1 << i))
elog_add_event_wake(ELOG_WAKE_SOURCE_GPIO, i + start);
}
}
static void pch_log_wake_source(struct chipset_power_state *ps)
{
/* Power Button */
if (ps->pm1_sts & PWRBTN_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_PWRBTN, 0);
/* RTC */
if (ps->pm1_sts & RTC_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0);
/* PCI Express (TODO: determine wake device) */
if (ps->pm1_sts & PCIEXPWAK_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0);
/* PME (TODO: determine wake device) */
if (ps->gpe0_sts[GPE_STD] & PME_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME, 0);
soc/intel/cannonlake: Add support to log XHCI wake events Enhance elog wake source information with more details about which USB port resulted in a wake from S3 or S0ix. BUG=b:123429132 BRANCH=none TEST=``FW_NAME=hatch emerge-hatch chromeos-ec depthcharge vboot_reference libpayload coreboot-private-files intel-cmlfsp coreboot-private-files-hatch coreboot chromeos-bootimage`` Ensure /build/hatch/firmware/image-hatch.serial.bin has been built. Plug a keyboard into a USB port on the DUT. Switch the DUT to the console (Ctrl-Alt-F2, or use the AP console via servo). On the console, run ``powerd_dbus_suspend``. Wait for the DUT to enter low power mode. Verify low power mode by issuing the ``powerinfo`` command on the EC console (via servo). Expect to see ``power state 4 = S0ix``. Press a key on the USB keyboard. The DUT wakes up. On the console, run ``mosys eventlog list`` and look for the wake source. 156 | 2019-06-26 09:46:07 | S0ix Enter 157 | 2019-06-26 12:14:05 | S0ix Exit 158 | 2019-06-26 12:14:05 | Wake Source | Internal PME | 0 159 | 2019-06-26 12:14:05 | Wake Source | GPE # | 109 Program image-hatch.serial.bin into the DUT using flashrom. Repeat the ``powerd_dbus_suspend``, ``powerinfo``, ``mosys eventlog list`` sequence. 12 | 2019-06-26 14:52:23 | S0ix Enter 13 | 2019-06-26 14:53:07 | S0ix Exit 14 | 2019-06-26 14:53:07 | Wake Source | PME - XHCI (USB 2.0 port) | 3 15 | 2019-06-26 14:53:07 | Wake Source | GPE # | 109 Change-Id: Ie9ef870e219733dea9806c766f5351db25689b32 Signed-off-by: Paul Fagerburg <pfagerburg@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33843 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2019-06-27 18:44:51 +02:00
/* XHCI - "Power Management Event Bus 0" events include XHCI */
if (ps->gpe0_sts[GPE_STD] & PME_B0_STS)
pch_xhci_update_wake_event(soc_get_xhci_usb_info());
/* SMBUS Wake */
if (ps->gpe0_sts[GPE_STD] & SMB_WAK_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_SMBUS, 0);
/* Log GPIO events in set 1-3 */
pch_log_gpio_gpe(ps->gpe0_sts[GPE_31_0], ps->gpe0_en[GPE_31_0], 0);
pch_log_gpio_gpe(ps->gpe0_sts[GPE_63_32], ps->gpe0_en[GPE_63_32], 32);
pch_log_gpio_gpe(ps->gpe0_sts[GPE_95_64], ps->gpe0_en[GPE_95_64], 64);
/* Treat the STD as an extension of GPIO to obtain visibility. */
pch_log_gpio_gpe(ps->gpe0_sts[GPE_STD], ps->gpe0_en[GPE_STD], 96);
}
static void pch_log_power_and_resets(struct chipset_power_state *ps)
{
/* Thermal Trip */
if (ps->gblrst_cause[0] & GBLRST_CAUSE0_THERMTRIP)
elog_add_event(ELOG_TYPE_THERM_TRIP);
/* PWR_FLR Power Failure */
if (ps->gen_pmcon_a & PWR_FLR)
elog_add_event(ELOG_TYPE_POWER_FAIL);
/* SUS Well Power Failure */
if (ps->gen_pmcon_a & SUS_PWR_FLR)
elog_add_event(ELOG_TYPE_SUS_POWER_FAIL);
/* TCO Timeout */
if (ps->prev_sleep_state != ACPI_S3 &&
ps->tco2_sts & TCO_STS_SECOND_TO)
elog_add_event(ELOG_TYPE_TCO_RESET);
/* Power Button Override */
if (ps->pm1_sts & PRBTNOR_STS)
elog_add_event(ELOG_TYPE_POWER_BUTTON_OVERRIDE);
/* RTC reset */
if (ps->gen_pmcon_b & RTC_BATTERY_DEAD)
elog_add_event(ELOG_TYPE_RTC_RESET);
/* Host Reset Status */
if (ps->gen_pmcon_a & HOST_RST_STS)
elog_add_event(ELOG_TYPE_SYSTEM_RESET);
/* ACPI Wake Event */
if (ps->prev_sleep_state != ACPI_S0)
elog_add_event_byte(ELOG_TYPE_ACPI_WAKE, ps->prev_sleep_state);
}
static void pch_log_state(void *unused)
{
struct chipset_power_state *ps = pmc_get_power_state();
if (!ps) {
printk(BIOS_ERR, "chipset_power_state not found!\n");
return;
}
/* Power and Reset */
pch_log_power_and_resets(ps);
/* Wake Sources */
if (ps->prev_sleep_state > ACPI_S0)
pch_log_wake_source(ps);
}
BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, pch_log_state, NULL);
void elog_gsmi_cb_platform_log_wake_source(void)
{
struct chipset_power_state ps;
pmc_fill_pm_reg_info(&ps);
pch_log_wake_source(&ps);
}