diff mbox series

[v7,4/4] platform/x86/intel/pmc: core: Report duration of time in HW sleep state

Message ID 20230411211719.4549-5-mario.limonciello@amd.com
State New
Headers
Series Add vendor agnostic mechanism to report hardware sleep |

Commit Message

Mario Limonciello April 11, 2023, 9:17 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.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
v6->v7:
 * Handle overflow by casting instead
v5->v6:
 * Handle overflow case
 * Use renamed symbol
v4->v5:
 * Reword commit message
---
 drivers/platform/x86/intel/pmc/core.c | 2 ++
 1 file changed, 2 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..5b1e65876b8d 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -1214,6 +1214,8 @@  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;