diff mbox series

[v10,4/4] platform/x86/intel/pmc: core: Report duration of time in HW sleep state

Message ID 20230417152708.3599-5-mario.limonciello@amd.com
State Accepted
Commit ddd66d63473513bb013928245b6482969b97de05
Headers show
Series Add vendor agnostic mechanism to report hardware sleep | expand

Commit Message

Mario Limonciello April 17, 2023, 3:27 p.m. UTC 
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>
---
 drivers/platform/x86/intel/pmc/core.c | 4 ++++
 drivers/platform/x86/intel/pmc/core.h | 2 ++
 2 files changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 925c5d676a43..298f27ba1e10 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -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;
 
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 51d73efceaf3..9ca9b9746719 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -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 */