From b7221f2b4655bb9a95ed6f86658713c8dd543d41 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 8 Jun 2020 15:39:33 -0400 Subject: [PATCH] drm/amdgpu: skip BAR resizing if the bios already did it MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit No need to do it again. Acked-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 668ad0e35160..7f2a1c7c1254 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)