iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

platform/x86/intel/pmc: core: Report duration of time in HW sleep state

Browse Source 
intel_pmc_core displays a warning when the module parameter
`warn_on_s0ix_failures` is set and a suspend didn't get to a HW sleep
state.

Report this to the standard kernel reporting infrastructure so that
userspace software can query after the suspend cycle is done.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Mario Limonciello 2023-04-17 10:27:08 -05:00 committed by Rafael J. Wysocki
parent e2348afe70
commit ddd66d6347
2 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/platform/x86/intel/pmc/core.c
View File

@ -1153,6 +1153,8 @@ static int pmc_core_probe(struct platform_device *pdev)
pmc_core_do_dmi_quirks(pmcdev);
pmc_core_dbgfs_register(pmcdev);
pm_report_max_hw_sleep(FIELD_MAX(SLP_S0_RES_COUNTER_MASK) *
pmc_core_adjust_slp_s0_step(pmcdev, 1));
device_initialized = true;
dev_info(&pdev->dev, " initialized\n");
@ -1214,6 +1216,8 @@ static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev)
if (pmc_core_dev_state_get(pmcdev, &s0ix_counter))
return false;
pm_report_hw_sleep_time((u32)(s0ix_counter - pmcdev->s0ix_counter));
if (s0ix_counter == pmcdev->s0ix_counter)
return true;

2
drivers/platform/x86/intel/pmc/core.h
View File

@ -16,6 +16,8 @@
#include <linux/bits.h>
#include <linux/platform_device.h>
#define SLP_S0_RES_COUNTER_MASK GENMASK(31, 0)
#define PMC_BASE_ADDR_DEFAULT 0xFE000000
/* Sunrise Point Power Management Controller PCI Device ID */