Merge drm/drm-next into drm-misc-next

Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

1 files changed, 41 insertions, 13 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
index 423fd2eebe1e..00e96419fcda 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -84,6 +84,13 @@ static bool check_atom_bios(struct amdgpu_device *adev, size_t size)
 	return false;
 }
 
+void amdgpu_bios_release(struct amdgpu_device *adev)
+{
+	kfree(adev->bios);
+	adev->bios = NULL;
+	adev->bios_size = 0;
+}
+
 /* If you boot an IGP board with a discrete card as the primary,
  * the IGP rom is not accessible via the rom bar as the IGP rom is
  * part of the system bios.  On boot, the system bios puts a
@@ -121,7 +128,7 @@ static bool amdgpu_read_bios_from_vram(struct amdgpu_device *adev)
 	iounmap(bios);
 
 	if (!check_atom_bios(adev, size)) {
-		kfree(adev->bios);
+		amdgpu_bios_release(adev);
 		return false;
 	}
 
@@ -149,7 +156,7 @@ bool amdgpu_read_bios(struct amdgpu_device *adev)
 	pci_unmap_rom(adev->pdev, bios);
 
 	if (!check_atom_bios(adev, size)) {
-		kfree(adev->bios);
+		amdgpu_bios_release(adev);
 		return false;
 	}
 
@@ -189,7 +196,7 @@ static bool amdgpu_read_bios_from_rom(struct amdgpu_device *adev)
 	amdgpu_asic_read_bios_from_rom(adev, adev->bios, len);
 
 	if (!check_atom_bios(adev, len)) {
-		kfree(adev->bios);
+		amdgpu_bios_release(adev);
 		return false;
 	}
 
@@ -225,7 +232,8 @@ static bool amdgpu_read_platform_bios(struct amdgpu_device *adev)
 
 	return true;
 free_bios:
-	kfree(adev->bios);
+	amdgpu_bios_release(adev);
+
 	return false;
 }
 
@@ -327,7 +335,7 @@ static bool amdgpu_atrm_get_bios(struct amdgpu_device *adev)
 	}
 
 	if (!check_atom_bios(adev, size)) {
-		kfree(adev->bios);
+		amdgpu_bios_release(adev);
 		return false;
 	}
 	adev->bios_size = size;
@@ -392,7 +400,7 @@ static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev)
 					     GFP_KERNEL);
 
 			if (!check_atom_bios(adev, vhdr->ImageLength)) {
-				kfree(adev->bios);
+				amdgpu_bios_release(adev);
 				return false;
 			}
 			adev->bios_size = vhdr->ImageLength;
@@ -439,6 +447,13 @@ success:
 	return true;
 }
 
+static bool amdgpu_prefer_rom_resource(struct amdgpu_device *adev)
+{
+	struct resource *res = &adev->pdev->resource[PCI_ROM_RESOURCE];
+
+	return (res->flags & IORESOURCE_ROM_SHADOW);
+}
+
 static bool amdgpu_get_bios_dgpu(struct amdgpu_device *adev)
 {
 	if (amdgpu_atrm_get_bios(adev)) {
@@ -457,14 +472,27 @@ static bool amdgpu_get_bios_dgpu(struct amdgpu_device *adev)
 		goto success;
 	}
 
-	if (amdgpu_read_platform_bios(adev)) {
-		dev_info(adev->dev, "Fetched VBIOS from platform\n");
-		goto success;
-	}
+	if (amdgpu_prefer_rom_resource(adev)) {
+		if (amdgpu_read_bios(adev)) {
+			dev_info(adev->dev, "Fetched VBIOS from ROM BAR\n");
+			goto success;
+		}
 
-	if (amdgpu_read_bios(adev)) {
-		dev_info(adev->dev, "Fetched VBIOS from ROM BAR\n");
-		goto success;
+		if (amdgpu_read_platform_bios(adev)) {
+			dev_info(adev->dev, "Fetched VBIOS from platform\n");
+			goto success;
+		}
+
+	} else {
+		if (amdgpu_read_platform_bios(adev)) {
+			dev_info(adev->dev, "Fetched VBIOS from platform\n");
+			goto success;
+		}
+
+		if (amdgpu_read_bios(adev)) {
+			dev_info(adev->dev, "Fetched VBIOS from ROM BAR\n");
+			goto success;
+		}
 	}
 
 	if (amdgpu_read_bios_from_rom(adev)) {