[PATCH 1/5] drm/amdgpu: set APU flag based on IP discovery table

[PATCH 1/5] drm/amdgpu: set APU flag based on IP discovery table

[Alex Deucher]

Use the IP versions to set the APU flag when necessary.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index e6a26b554254..ddbe13c9e4c7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -1253,6 +1253,19 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 		return -EINVAL;
 	}
 
+	switch (adev->ip_versions[GC_HWIP][0]) {
+	case IP_VERSION(9, 1, 0):
+	case IP_VERSION(9, 2, 2):
+	case IP_VERSION(9, 3, 0):
+	case IP_VERSION(10, 1, 3):
+	case IP_VERSION(10, 3, 1):
+	case IP_VERSION(10, 3, 3):
+		adev->flags |= AMD_IS_APU;
+		break;
+	default:
+		break;
+	}
+
 	if (adev->ip_versions[XGMI_HWIP][0] == IP_VERSION(4, 8, 0))
 		adev->gmc.xgmi.supported = true;
 
-- 
2.34.1

[PATCH 2/5] drm/amdgpu: move PX checking into amdgpu_device_ip_early_init

[Alex Deucher]

We need to set the APU flag from IP discovery before
we evaluate this code.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 +++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    | 13 -------------
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 061ea30650cc..df78adecf157 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -31,6 +31,7 @@
 #include <linux/console.h>
 #include <linux/slab.h>
 #include <linux/iommu.h>
+#include <linux/pci.h>
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_probe_helper.h>
@@ -2073,6 +2074,8 @@ static int amdgpu_device_parse_gpu_info_fw(struct amdgpu_device *adev)
  */
 static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
 {
+	struct drm_device *dev = adev_to_drm(adev);
+	struct pci_dev *parent;
 	int i, r;
 
 	amdgpu_device_enable_virtual_display(adev);
@@ -2137,6 +2140,18 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
 		break;
 	}
 
+	if (amdgpu_has_atpx() &&
+	    (amdgpu_is_atpx_hybrid() ||
+	     amdgpu_has_atpx_dgpu_power_cntl()) &&
+	    ((adev->flags & AMD_IS_APU) == 0) &&
+	    !pci_is_thunderbolt_attached(to_pci_dev(dev->dev)))
+		adev->flags |= AMD_IS_PX;
+
+	if (!(adev->flags & AMD_IS_APU)) {
+		parent = pci_upstream_bridge(adev->pdev);
+		adev->has_pr3 = parent ? pci_pr3_present(parent) : false;
+	}
+
 	amdgpu_amdkfd_device_probe(adev);
 
 	adev->pm.pp_feature = amdgpu_pp_feature_mask;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 56c2d988694a..16a6da09c924 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -152,23 +152,10 @@ static void amdgpu_get_audio_func(struct amdgpu_device *adev)
 int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
 {
 	struct drm_device *dev;
-	struct pci_dev *parent;
 	int r, acpi_status;
 
 	dev = adev_to_drm(adev);
 
-	if (amdgpu_has_atpx() &&
-	    (amdgpu_is_atpx_hybrid() ||
-	     amdgpu_has_atpx_dgpu_power_cntl()) &&
-	    ((flags & AMD_IS_APU) == 0) &&
-	    !pci_is_thunderbolt_attached(to_pci_dev(dev->dev)))
-		flags |= AMD_IS_PX;
-
-	if (!(flags & AMD_IS_APU)) {
-		parent = pci_upstream_bridge(adev->pdev);
-		adev->has_pr3 = parent ? pci_pr3_present(parent) : false;
-	}
-
 	/* amdgpu_device_init should report only fatal error
 	 * like memory allocation failure or iomapping failure,
 	 * or memory manager initialization failure, it must
-- 
2.34.1

[PATCH 3/5] drm/amdgpu: move runtime pm init after drm and fbdev init

[Alex Deucher]

Seems more logical to enable runtime pm at the end of
the init sequence so we don't end up entering runtime
suspend before init is finished.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 65 +++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 69 +------------------------
 2 files changed, 66 insertions(+), 68 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 75ceb43392b1..89c3578bc818 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1968,6 +1968,22 @@ static bool amdgpu_is_fw_framebuffer(resource_size_t base,
 	return found;
 }
 
+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)
 {
@@ -2100,6 +2116,48 @@ 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_px(ddev))
+			dev_pm_set_driver_flags(ddev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
+		/* we want direct complete for BOCO */
+		if (amdgpu_device_supports_boco(ddev))
+			dev_pm_set_driver_flags(ddev->dev, DPM_FLAG_SMART_PREPARE |
+						DPM_FLAG_SMART_SUSPEND |
+						DPM_FLAG_MAY_SKIP_RESUME);
+		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:
@@ -2111,8 +2169,15 @@ 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);
 
 	drm_dev_unplug(dev);
+
+	if (adev->runpm) {
+		pm_runtime_get_sync(dev->dev);
+		pm_runtime_forbid(dev->dev);
+	}
+
 	amdgpu_driver_unload_kms(dev);
 
 	/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 16a6da09c924..4c437ad2dd9a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -87,11 +87,6 @@ void amdgpu_driver_unload_kms(struct drm_device *dev)
 	if (adev->rmmio == NULL)
 		return;
 
-	if (adev->runpm) {
-		pm_runtime_get_sync(dev->dev);
-		pm_runtime_forbid(dev->dev);
-	}
-
 	if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DRV_UNLOAD))
 		DRM_WARN("smart shift update failed\n");
 
@@ -124,22 +119,6 @@ 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.
  *
@@ -213,58 +192,12 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
 	if (acpi_status)
 		dev_dbg(dev->dev, "Error during ACPI methods call\n");
 
-	if (adev->runpm) {
-		/* only need to skip on ATPX */
-		if (amdgpu_device_supports_px(dev))
-			dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
-		/* we want direct complete for BOCO */
-		if (amdgpu_device_supports_boco(dev))
-			dev_pm_set_driver_flags(dev->dev, DPM_FLAG_SMART_PREPARE |
-						DPM_FLAG_SMART_SUSPEND |
-						DPM_FLAG_MAY_SKIP_RESUME);
-		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);
-	}
-
 	if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DRV_LOAD))
 		DRM_WARN("smart shift update failed\n");
 
 out:
-	if (r) {
-		/* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */
-		if (adev->rmmio && adev->runpm)
-			pm_runtime_put_noidle(dev->dev);
+	if (r)
 		amdgpu_driver_unload_kms(dev);
-	}
 
 	return r;
 }
-- 
2.34.1

[PATCH 4/5] drm/amdgpu: handle BACO synchronization with secondary funcs

[Alex Deucher]

Extend secondary function handling for runtime pm beyond audio
to USB and UCSI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 30 +++++++++++++++----------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 89c3578bc818..119a5798623e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1968,19 +1968,25 @@ static bool amdgpu_is_fw_framebuffer(resource_size_t base,
 	return found;
 }
 
-static void amdgpu_get_audio_func(struct amdgpu_device *adev)
+static void amdgpu_get_secondary_funcs(struct amdgpu_device *adev)
 {
 	struct pci_dev *p = NULL;
+	int i;
 
-	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);
+	/* 0 - GPU
+	 * 1 - audio
+	 * 2 - USB
+	 * 3 - UCSI
+	 */
+	for (i = 1; i < 4; i++) {
+		p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
+						adev->pdev->bus->number, i);
+		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);
+		}
 	}
 }
 
@@ -2148,14 +2154,14 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		 * 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
+		 * Via amdgpu_get_secondary_funcs(), 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);
+			amdgpu_get_secondary_funcs(adev);
 	}
 
 	return 0;
-- 
2.34.1

RE: [PATCH 4/5] drm/amdgpu: handle BACO synchronization with secondary funcs

[Quan, Evan]

[AMD Official Use Only]



> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces@lists.freedesktop.org> On Behalf Of Alex
> Deucher
> Sent: Saturday, January 22, 2022 4:22 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Deucher, Alexander <Alexander.Deucher@amd.com>
> Subject: [PATCH 4/5] drm/amdgpu: handle BACO synchronization with
> secondary funcs
> 
> Extend secondary function handling for runtime pm beyond audio
> to USB and UCSI.
> 
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 30 +++++++++++++++------
> ----
>  1 file changed, 18 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 89c3578bc818..119a5798623e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -1968,19 +1968,25 @@ static bool
> amdgpu_is_fw_framebuffer(resource_size_t base,
>  	return found;
>  }
> 
> -static void amdgpu_get_audio_func(struct amdgpu_device *adev)
> +static void amdgpu_get_secondary_funcs(struct amdgpu_device *adev)
>  {
>  	struct pci_dev *p = NULL;
> +	int i;
> 
> -	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);
> +	/* 0 - GPU
> +	 * 1 - audio
> +	 * 2 - USB
> +	 * 3 - UCSI
> +	 */
> +	for (i = 1; i < 4; i++) {
> +		p = pci_get_domain_bus_and_slot(pci_domain_nr(adev-
> >pdev->bus),
> +						adev->pdev->bus->number,
> i);
> +		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);
> +		}
>  	}
>  }
[Quan, Evan] Although PMFW does not care the status of those functions except audio. Logically this seems more reasonable and should be harmless.
Patch 3 & 4 are reviewed-by: Evan Quan <evan.quan@amd.com>
Patch 1, 2, 5 are acked-by: Evan Quan <evan.quan@amd.com>
> 
> @@ -2148,14 +2154,14 @@ static int amdgpu_pci_probe(struct pci_dev
> *pdev,
>  		 * 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
> +		 * Via amdgpu_get_secondary_funcs(), 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);
> +			amdgpu_get_secondary_funcs(adev);
>  	}
> 
>  	return 0;
> --
> 2.34.1

[PATCH 5/5] drm/amdgpu: convert amdgpu_display_supported_domains() to IP versions

[Alex Deucher]

Check IP versions rather than asic types.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 29 ++++++++++++---------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 82011e75ed85..6cad39c31c58 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -510,19 +510,24 @@ uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev,
 		case CHIP_STONEY:
 			domain |= AMDGPU_GEM_DOMAIN_GTT;
 			break;
-		case CHIP_RAVEN:
-			/* enable S/G on PCO and RV2 */
-			if ((adev->apu_flags & AMD_APU_IS_RAVEN2) ||
-			    (adev->apu_flags & AMD_APU_IS_PICASSO))
-				domain |= AMDGPU_GEM_DOMAIN_GTT;
-			break;
-		case CHIP_RENOIR:
-		case CHIP_VANGOGH:
-		case CHIP_YELLOW_CARP:
-			domain |= AMDGPU_GEM_DOMAIN_GTT;
-			break;
-
 		default:
+			switch (adev->ip_versions[DCE_HWIP][0]) {
+			case IP_VERSION(1, 0, 0):
+			case IP_VERSION(1, 0, 1):
+				/* enable S/G on PCO and RV2 */
+				if ((adev->apu_flags & AMD_APU_IS_RAVEN2) ||
+				    (adev->apu_flags & AMD_APU_IS_PICASSO))
+					domain |= AMDGPU_GEM_DOMAIN_GTT;
+				break;
+			case IP_VERSION(2, 1, 0):
+			case IP_VERSION(3, 0, 1):
+			case IP_VERSION(3, 1, 2):
+			case IP_VERSION(3, 1, 3):
+				domain |= AMDGPU_GEM_DOMAIN_GTT;
+				break;
+			default:
+				break;
+			}
 			break;
 		}
 	}
-- 
2.34.1

RE: [PATCH 1/5] drm/amdgpu: set APU flag based on IP discovery table

[Liu, Aaron]

[AMD Official Use Only]

Reviewed-by: Aaron Liu <aaron.liu@amd.com>

--
Best Regards
Aaron Liu

> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces@lists.freedesktop.org> On Behalf Of Alex
> Deucher
> Sent: Saturday, January 22, 2022 4:22 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Deucher, Alexander <Alexander.Deucher@amd.com>
> Subject: [PATCH 1/5] drm/amdgpu: set APU flag based on IP discovery table
> 
> Use the IP versions to set the APU flag when necessary.
> 
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
> index e6a26b554254..ddbe13c9e4c7 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
> @@ -1253,6 +1253,19 @@ int amdgpu_discovery_set_ip_blocks(struct
> amdgpu_device *adev)
>  		return -EINVAL;
>  	}
> 
> +	switch (adev->ip_versions[GC_HWIP][0]) {
> +	case IP_VERSION(9, 1, 0):
> +	case IP_VERSION(9, 2, 2):
> +	case IP_VERSION(9, 3, 0):
> +	case IP_VERSION(10, 1, 3):
> +	case IP_VERSION(10, 3, 1):
> +	case IP_VERSION(10, 3, 3):
> +		adev->flags |= AMD_IS_APU;
> +		break;
> +	default:
> +		break;
> +	}
> +
>  	if (adev->ip_versions[XGMI_HWIP][0] == IP_VERSION(4, 8, 0))
>  		adev->gmc.xgmi.supported = true;
> 
> --
> 2.34.1