From: Alex Deucher Date: Mon, 8 Jun 2020 19:39:33 +0000 (-0400) Subject: drm/amdgpu: skip BAR resizing if the bios already did it X-Git-Tag: v5.10.7~1861^2~25^2~163 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b7221f2b4655bb9a95ed6f86658713c8dd543d41;p=platform%2Fkernel%2Flinux-rpi.git drm/amdgpu: skip BAR resizing if the bios already did it No need to do it again. Acked-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 668ad0e..7f2a1c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -909,6 +909,11 @@ int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev) if (amdgpu_sriov_vf(adev)) return 0; + /* skip if the bios has already enabled large BAR */ + if (adev->gmc.real_vram_size && + (pci_resource_len(adev->pdev, 0) >= adev->gmc.real_vram_size)) + return 0; + /* Check if the root BUS has 64bit memory resources */ root = adev->pdev->bus; while (root->parent)