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. Suggested-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> Reviewed-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> --- v8->v9: * Use FIELD_MAX and GENMASK * Add tags v7->v8: * Report max sleep as well --- drivers/platform/x86/intel/pmc/core.c | 4 ++++ drivers/platform/x86/intel/pmc/core.h | 2 ++ 2 files changed, 6 insertions(+) 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 */ -- 2.34.1
