diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/amd-pmc.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c index fc0b4d628dec..971aaabaa9c8 100644 --- a/drivers/platform/x86/amd-pmc.c +++ b/drivers/platform/x86/amd-pmc.c @@ -322,6 +322,28 @@ static int amd_pmc_idlemask_read(struct amd_pmc_dev *pdev, struct device *dev, return 0; } +static int get_metrics_table(struct amd_pmc_dev *pdev, struct smu_metrics *table) +{ + if (pdev->cpu_id == AMD_CPU_ID_PCO) + return -ENODEV; + memcpy_fromio(table, pdev->smu_virt_addr, sizeof(struct smu_metrics)); + return 0; +} + +static void amd_pmc_validate_deepest(struct amd_pmc_dev *pdev) +{ + struct smu_metrics table; + + if (get_metrics_table(pdev, &table)) + return; + + if (!table.s0i3_last_entry_status) + dev_warn(pdev->dev, "Last suspend didn't reach deepest state\n"); + else + dev_dbg(pdev->dev, "Last suspend in deepest state for %lluus\n", + table.timein_s0i3_lastcapture); +} + #ifdef CONFIG_DEBUG_FS static int smu_fw_info_show(struct seq_file *s, void *unused) { @@ -329,11 +351,9 @@ static int smu_fw_info_show(struct seq_file *s, void *unused) struct smu_metrics table; int idx; - if (dev->cpu_id == AMD_CPU_ID_PCO) + if (get_metrics_table(dev, &table)) return -EINVAL; - memcpy_fromio(&table, dev->smu_virt_addr, sizeof(struct smu_metrics)); - seq_puts(s, "\n=== SMU Statistics ===\n"); seq_printf(s, "Table Version: %d\n", table.table_version); seq_printf(s, "Hint Count: %d\n", table.hint_count); @@ -689,6 +709,9 @@ static int __maybe_unused amd_pmc_resume(struct device *dev) cpu_latency_qos_update_request(&pdev->amd_pmc_pm_qos_req, PM_QOS_DEFAULT_VALUE); + /* Notify on failed entry */ + amd_pmc_validate_deepest(pdev); + return rc; } |