Commit ddd66d63 authored by Mario Limonciello's avatar Mario Limonciello Committed by Rafael J. Wysocki
Browse files

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



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: default avatarHans de Goede <hdegoede@redhat.com>
Suggested-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: default avatarDavid E. Box <david.e.box@linux.intel.com>
Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent e2348afe

drivers/platform/x86/intel/pmc/core.c

+4 −0
Original line number Diff line number Diff line
@@ -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;

drivers/platform/x86/intel/pmc/core.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */