From: Christian König Date: Thu, 20 Mar 2025 13:46:18 +0000 (+0100) Subject: drm/amdgpu: immediately use GTT for new allocations X-Git-Tag: v6.15-rc2~15^2~2^2~19 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a755906fb2b8370c43e91ba437ae1b3e228e8b02;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: immediately use GTT for new allocations Only use GTT as a fallback if we already have a backing store. This prevents evictions when an application constantly allocates and frees new memory. Partially fixes https://gitlab.freedesktop.org/drm/amd/-/issues/3844#note_2833985. Signed-off-by: Christian König Fixes: 216c1282dde3 ("drm/amdgpu: use GTT only as fallback for VRAM|GTT") Acked-by: Alex Deucher Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 80cd6f5273db3..0b9987781f762 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -163,8 +163,8 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain) * When GTT is just an alternative to VRAM make sure that we * only use it as fallback and still try to fill up VRAM first. */ - if (domain & abo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM && - !(adev->flags & AMD_IS_APU)) + if (abo->tbo.resource && !(adev->flags & AMD_IS_APU) && + domain & abo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) places[c].flags |= TTM_PL_FLAG_FALLBACK; c++; }