diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_pm.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_pm.c | 95 |
1 files changed, 71 insertions, 24 deletions
diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c index 7b6b754ad6eb..ad263de44111 100644 --- a/drivers/gpu/drm/xe/xe_pm.c +++ b/drivers/gpu/drm/xe/xe_pm.c @@ -16,7 +16,6 @@ #include "xe_bo.h" #include "xe_bo_evict.h" #include "xe_device.h" -#include "xe_device_sysfs.h" #include "xe_ggtt.h" #include "xe_gt.h" #include "xe_guc.h" @@ -135,7 +134,7 @@ int xe_pm_suspend(struct xe_device *xe) /* FIXME: Super racey... */ err = xe_bo_evict_all(xe); if (err) - goto err_pxp; + goto err_display; for_each_gt(gt, xe, id) { err = xe_gt_suspend(gt); @@ -152,7 +151,6 @@ int xe_pm_suspend(struct xe_device *xe) err_display: xe_display_pm_resume(xe); -err_pxp: xe_pxp_pm_resume(xe->pxp); err: drm_dbg(&xe->drm, "Device suspend failed %d\n", err); @@ -188,7 +186,7 @@ int xe_pm_resume(struct xe_device *xe) * This only restores pinned memory which is the memory required for the * GT(s) to resume. */ - err = xe_bo_restore_kernel(xe); + err = xe_bo_restore_early(xe); if (err) goto err; @@ -199,7 +197,7 @@ int xe_pm_resume(struct xe_device *xe) xe_display_pm_resume(xe); - err = xe_bo_restore_user(xe); + err = xe_bo_restore_late(xe); if (err) goto err; @@ -273,6 +271,7 @@ int xe_pm_init_early(struct xe_device *xe) if (err) return err; + xe->d3cold.capable = xe_pm_pci_d3cold_capable(xe); return 0; } ALLOW_ERROR_INJECTION(xe_pm_init_early, ERRNO); /* See xe_pci_probe() */ @@ -286,6 +285,42 @@ static u32 vram_threshold_value(struct xe_device *xe) return DEFAULT_VRAM_THRESHOLD; } +static int xe_pm_notifier_callback(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct xe_device *xe = container_of(nb, struct xe_device, pm_notifier); + int err = 0; + + switch (action) { + case PM_HIBERNATION_PREPARE: + case PM_SUSPEND_PREPARE: + xe_pm_runtime_get(xe); + err = xe_bo_evict_all_user(xe); + if (err) { + drm_dbg(&xe->drm, "Notifier evict user failed (%d)\n", err); + xe_pm_runtime_put(xe); + break; + } + + err = xe_bo_notifier_prepare_all_pinned(xe); + if (err) { + drm_dbg(&xe->drm, "Notifier prepare pin failed (%d)\n", err); + xe_pm_runtime_put(xe); + } + break; + case PM_POST_HIBERNATION: + case PM_POST_SUSPEND: + xe_bo_notifier_unprepare_all_pinned(xe); + xe_pm_runtime_put(xe); + break; + } + + if (err) + return NOTIFY_BAD; + + return NOTIFY_DONE; +} + /** * xe_pm_init - Initialize Xe Power Management * @xe: xe device instance @@ -299,33 +334,31 @@ int xe_pm_init(struct xe_device *xe) u32 vram_threshold; int err; + xe->pm_notifier.notifier_call = xe_pm_notifier_callback; + err = register_pm_notifier(&xe->pm_notifier); + if (err) + return err; + /* For now suspend/resume is only allowed with GuC */ if (!xe_device_uc_enabled(xe)) return 0; - xe->d3cold.capable = xe_pm_pci_d3cold_capable(xe); - if (xe->d3cold.capable) { - err = xe_device_sysfs_init(xe); - if (err) - return err; - vram_threshold = vram_threshold_value(xe); err = xe_pm_set_vram_threshold(xe, vram_threshold); if (err) - return err; + goto err_unregister; } xe_pm_runtime_init(xe); - return 0; + +err_unregister: + unregister_pm_notifier(&xe->pm_notifier); + return err; } -/** - * xe_pm_runtime_fini - Finalize Runtime PM - * @xe: xe device instance - */ -void xe_pm_runtime_fini(struct xe_device *xe) +static void xe_pm_runtime_fini(struct xe_device *xe) { struct device *dev = xe->drm.dev; @@ -333,6 +366,18 @@ void xe_pm_runtime_fini(struct xe_device *xe) pm_runtime_forbid(dev); } +/** + * xe_pm_fini - Finalize PM + * @xe: xe device instance + */ +void xe_pm_fini(struct xe_device *xe) +{ + if (xe_device_uc_enabled(xe)) + xe_pm_runtime_fini(xe); + + unregister_pm_notifier(&xe->pm_notifier); +} + static void xe_pm_write_callback_task(struct xe_device *xe, struct task_struct *task) { @@ -484,7 +529,7 @@ int xe_pm_runtime_resume(struct xe_device *xe) * This only restores pinned memory which is the memory * required for the GT(s) to resume. */ - err = xe_bo_restore_kernel(xe); + err = xe_bo_restore_early(xe); if (err) goto out; } @@ -497,7 +542,7 @@ int xe_pm_runtime_resume(struct xe_device *xe) xe_display_pm_runtime_resume(xe); if (xe->d3cold.allowed) { - err = xe_bo_restore_user(xe); + err = xe_bo_restore_late(xe); if (err) goto out; } @@ -641,7 +686,7 @@ static bool xe_pm_suspending_or_resuming(struct xe_device *xe) return dev->power.runtime_status == RPM_SUSPENDING || dev->power.runtime_status == RPM_RESUMING || - pm_suspend_target_state != PM_SUSPEND_ON; + pm_suspend_in_progress(); #else return false; #endif @@ -707,11 +752,13 @@ void xe_pm_assert_unbounded_bridge(struct xe_device *xe) } /** - * xe_pm_set_vram_threshold - Set a vram threshold for allowing/blocking D3Cold + * xe_pm_set_vram_threshold - Set a VRAM threshold for allowing/blocking D3Cold * @xe: xe device instance - * @threshold: VRAM size in bites for the D3cold threshold + * @threshold: VRAM size in MiB for the D3cold threshold * - * Returns 0 for success, negative error code otherwise. + * Return: + * * 0 - success + * * -EINVAL - invalid argument */ int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold) { |