drm/amd/amdgpu: fix performance drop when VRAM pressure

When VRAM pressue and trigger huge evictions there is performance drop,
this patch fix it.

Signed-off-by: Roger.He <Hongbo.He@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 9b2e1f1..5aac350 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -405,10 +405,8 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
        if (unlikely(r != 0))
                return r;
 
-       bo->tbo.priority = ilog2(bo->tbo.num_pages);
        if (kernel)
-               bo->tbo.priority *= 2;
-       bo->tbo.priority = min(bo->tbo.priority, (unsigned)(TTM_MAX_BO_PRIORITY - 1));
+               bo->tbo.priority = 1;
 
        if (flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
            bo->tbo.mem.placement & TTM_PL_FLAG_VRAM) {