From: Shane Xiao Date: Wed, 15 Feb 2023 05:23:44 +0000 (+0800) Subject: drm/amdgpu: remove TOPDOWN flags when allocating VRAM in large bar system X-Git-Tag: v6.3-rc1~28^2^2~27 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=c105518679b6e87232874ffc989ec403bee59664;p=tomoyo%2Ftomoyo-test1.git drm/amdgpu: remove TOPDOWN flags when allocating VRAM in large bar system Since VRAM manager is changed from drm mm to drm buddy, the TOP_DOWN flag should not be set by default in the large bar system. Removing this flag helps improve drm buddy allocator efficiency and reduce the risk of splitting higher order block into lower order. Signed-off-by: Shane Xiao Reviewed-by: Christian K�nig Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 981010de0a28..e3e1ed4314dd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -139,7 +139,7 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain) if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) places[c].lpfn = visible_pfn; - else + else if (adev->gmc.real_vram_size != adev->gmc.visible_vram_size) places[c].flags |= TTM_PL_FLAG_TOPDOWN; if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)