From 4de34b04783628f14614badb0a1aa67ce3fcef5d Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 26 Mar 2024 11:28:29 -0400 Subject: [PATCH] drm/amdgpu: always allocate cleared VRAM for GEM allocations MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This adds allocation latency, but aligns better with user expectations. The latency should improve with the drm buddy clearing patches that Arun has been working on. In addition this fixes the high CPU spikes seen when doing wipe on release. v2: always set AMDGPU_GEM_CREATE_VRAM_CLEARED (Christian) Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3528 Fixes: a68c7eaa7a8f ("drm/amdgpu: Enable clear page functionality") Acked-by: Arunpravin Paneer Selvam Reviewed-by: Michel Dänzer (v1) Signed-off-by: Alex Deucher Cc: Arunpravin Paneer Selvam Cc: Christian König (cherry picked from commit 6c0a7c3c693ac84f8b50269a9088af8f37446863) Cc: stable@vger.kernel.org # 6.10.x --- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index aad2027e5c7cb..0e617dff8765e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -348,6 +348,9 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, return -EINVAL; } + /* always clear VRAM */ + flags |= AMDGPU_GEM_CREATE_VRAM_CLEARED; + /* create a gem object to contain this object in */ if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS | AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) { -- 2.39.5