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path: root/drivers/platform/x86/intel/pmc
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Diffstat (limited to 'drivers/platform/x86/intel/pmc')
-rw-r--r--drivers/platform/x86/intel/pmc/core.c17
-rw-r--r--drivers/platform/x86/intel/pmc/core.h4
2 files changed, 11 insertions, 10 deletions
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 61ca7c37fb02..da6e7206d38b 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");
@@ -1178,12 +1180,6 @@ static __maybe_unused int pmc_core_suspend(struct device *dev)
{
struct pmc_dev *pmcdev = dev_get_drvdata(dev);
- pmcdev->check_counters = false;
-
- /* No warnings on S0ix failures */
- if (!warn_on_s0ix_failures)
- return 0;
-
/* Check if the syspend will actually use S0ix */
if (pm_suspend_via_firmware())
return 0;
@@ -1196,7 +1192,6 @@ static __maybe_unused int pmc_core_suspend(struct device *dev)
if (pmc_core_dev_state_get(pmcdev, &pmcdev->s0ix_counter))
return -EIO;
- pmcdev->check_counters = true;
return 0;
}
@@ -1220,6 +1215,8 @@ 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;
@@ -1232,12 +1229,16 @@ static __maybe_unused int pmc_core_resume(struct device *dev)
const struct pmc_bit_map **maps = pmcdev->map->lpm_sts;
int offset = pmcdev->map->lpm_status_offset;
- if (!pmcdev->check_counters)
+ /* Check if the syspend used S0ix */
+ if (pm_suspend_via_firmware())
return 0;
if (!pmc_core_is_s0ix_failed(pmcdev))
return 0;
+ if (!warn_on_s0ix_failures)
+ return 0;
+
if (pmc_core_is_pc10_failed(pmcdev)) {
/* S0ix failed because of PC10 entry failure */
dev_info(dev, "CPU did not enter PC10!!! (PC10 cnt=0x%llx)\n",
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 810204d758ab..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 */
@@ -319,7 +321,6 @@ struct pmc_reg_map {
* @pmc_xram_read_bit: flag to indicate whether PMC XRAM shadow registers
* used to read MPHY PG and PLL status are available
* @mutex_lock: mutex to complete one transcation
- * @check_counters: On resume, check if counters are getting incremented
* @pc10_counter: PC10 residency counter
* @s0ix_counter: S0ix residency (step adjusted)
* @num_lpm_modes: Count of enabled modes
@@ -338,7 +339,6 @@ struct pmc_dev {
int pmc_xram_read_bit;
struct mutex lock; /* generic mutex lock for PMC Core */
- bool check_counters; /* Check for counter increments on resume */
u64 pc10_counter;
u64 s0ix_counter;
int num_lpm_modes;