FAILED: patch "[PATCH] drm/amdgpu: fix autosuspend cleanup during removal" failed to apply to 5.10-stable tree

index 0ab380ca7e64..5c33c19fd9bc 100644
@@ -2557,6 +2557,7 @@ amdgpu_pci_remove(struct pci_dev *pdev)
 	if (adev->pm.rpm_mode != AMDGPU_RUNPM_NONE) {
 		pm_runtime_get_sync(dev->dev);
 		pm_runtime_forbid(dev->dev);
+		pm_runtime_dont_use_autosuspend(dev->dev);
 	}
 
 	amdgpu_driver_unload_kms(dev);

index 93a4b52f4a73b..aa887327aa726 100644
@@ -122,6 +122,22 @@ void amdgpu_register_gpu_instance(struct amdgpu_device *adev)
 	mutex_unlock(&mgpu_info.mutex);
 }
 
+static void amdgpu_get_audio_func(struct amdgpu_device *adev)
+{
+	struct pci_dev *p = NULL;
+
+	p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
+			adev->pdev->bus->number, 1);
+	if (p) {
+		pm_runtime_get_sync(&p->dev);
+
+		pm_runtime_mark_last_busy(&p->dev);
+		pm_runtime_put_autosuspend(&p->dev);
+
+		pci_dev_put(p);
+	}
+}
+
 /**
  * amdgpu_driver_load_kms - Main load function for KMS.
  *

@@ -202,9 +218,35 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
 			dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 		pm_runtime_use_autosuspend(dev->dev);
 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
+
 		pm_runtime_allow(dev->dev);
+
 		pm_runtime_mark_last_busy(dev->dev);
 		pm_runtime_put_autosuspend(dev->dev);
+
+		/*
+		 * For runpm implemented via BACO, PMFW will handle the
+		 * timing for BACO in and out:
+		 *   - put ASIC into BACO state only when both video and
+		 *     audio functions are in D3 state.
+		 *   - pull ASIC out of BACO state when either video or
+		 *     audio function is in D0 state.
+		 * Also, at startup, PMFW assumes both functions are in
+		 * D0 state.
+		 *
+		 * So if snd driver was loaded prior to amdgpu driver
+		 * and audio function was put into D3 state, there will
+		 * be no PMFW-aware D-state transition(D0->D3) on runpm
+		 * suspend. Thus the BACO will be not correctly kicked in.
+		 *
+		 * Via amdgpu_get_audio_func(), the audio dev is put
+		 * into D0 state. Then there will be a PMFW-aware D-state
+		 * transition(D0->D3) on runpm suspend.
+		 */
+		if (amdgpu_device_supports_baco(dev) &&
+		    !(adev->flags & AMD_IS_APU) &&
+		    (adev->asic_type >= CHIP_NAVI10))
+			amdgpu_get_audio_func(adev);
 	}
 
 out:

index 0d8c1c318ce89..a75c988b4be89 100644
@@ -1103,6 +1103,22 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
+static void amdgpu_get_audio_func(struct amdgpu_device *adev)
+{
+	struct pci_dev *p = NULL;
+
+	p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
+			adev->pdev->bus->number, 1);
+	if (p) {
+		pm_runtime_get_sync(&p->dev);
+
+		pm_runtime_mark_last_busy(&p->dev);
+		pm_runtime_put_autosuspend(&p->dev);
+
+		pci_dev_put(p);
+	}
+}
+
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {

@@ -1218,6 +1234,44 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		DRM_ERROR("Creating debugfs files failed (%d).\n", ret);
 
+	if (adev->runpm) {
+		/* only need to skip on ATPX */
+		if (amdgpu_device_supports_boco(ddev) &&
+		    !amdgpu_is_atpx_hybrid())
+			dev_pm_set_driver_flags(ddev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
+		pm_runtime_use_autosuspend(ddev->dev);
+		pm_runtime_set_autosuspend_delay(ddev->dev, 5000);
+
+		pm_runtime_allow(ddev->dev);
+
+		pm_runtime_mark_last_busy(ddev->dev);
+		pm_runtime_put_autosuspend(ddev->dev);
+
+		/*
+		 * For runpm implemented via BACO, PMFW will handle the
+		 * timing for BACO in and out:
+		 *   - put ASIC into BACO state only when both video and
+		 *     audio functions are in D3 state.
+		 *   - pull ASIC out of BACO state when either video or
+		 *     audio function is in D0 state.
+		 * Also, at startup, PMFW assumes both functions are in
+		 * D0 state.
+		 *
+		 * So if snd driver was loaded prior to amdgpu driver
+		 * and audio function was put into D3 state, there will
+		 * be no PMFW-aware D-state transition(D0->D3) on runpm
+		 * suspend. Thus the BACO will be not correctly kicked in.
+		 *
+		 * Via amdgpu_get_audio_func(), the audio dev is put
+		 * into D0 state. Then there will be a PMFW-aware D-state
+		 * transition(D0->D3) on runpm suspend.
+		 */
+		if (amdgpu_device_supports_baco(ddev) &&
+		    !(adev->flags & AMD_IS_APU) &&
+		    (adev->asic_type >= CHIP_NAVI10))
+			amdgpu_get_audio_func(adev);
+	}
+
 	return 0;
 
 err_pci:

@@ -1229,12 +1283,19 @@ static void
 amdgpu_pci_remove(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
 
 #ifdef MODULE
 	if (THIS_MODULE->state != MODULE_STATE_GOING)
 #endif
 		DRM_ERROR("Hotplug removal is not supported\n");
 	drm_dev_unplug(dev);
+
+	if (adev->runpm) {
+		pm_runtime_get_sync(dev->dev);
+		pm_runtime_forbid(dev->dev);
+	}
+
 	amdgpu_driver_unload_kms(dev);
 	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);

85 lines not on this page · raw message

index a75c988b4be89..ec7c1e44f4cfb 100644
@@ -1294,6 +1294,7 @@ amdgpu_pci_remove(struct pci_dev *pdev)
 	if (adev->runpm) {
 		pm_runtime_get_sync(dev->dev);
 		pm_runtime_forbid(dev->dev);
+		pm_runtime_dont_use_autosuspend(dev->dev);
 	}
 
 	amdgpu_driver_unload_kms(dev);