[Mesa-dev] [PATCH 1/2] winsys/amdgpu: Handle RADEON_FLAG_NO_CPU_ACCESS

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>

Failing to do this was resulting in the kernel driver unnecessarily
leaving open the possibility of CPU access to tiled BOs.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93862

(This change shouldn't be backported to stable branches, because
released versions of xf86-video-amdgpu unnecessarily try to map the
front buffer)

Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/gallium/winsys/amdgpu/drm/amdgpu_bo.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
index 30a1aa8..1e997d9 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
@@ -292,6 +292,8 @@ static struct amdgpu_winsys_bo *amdgpu_create_bo(struct amdgpu_winsys *ws,
       request.preferred_heap |= AMDGPU_GEM_DOMAIN_VRAM;
       if (flags & RADEON_FLAG_CPU_ACCESS)
          request.flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
+      if (flags & RADEON_FLAG_NO_CPU_ACCESS)
+         request.flags |= AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
    }
    if (initial_domain & RADEON_DOMAIN_GTT) {
       request.preferred_heap |= AMDGPU_GEM_DOMAIN_GTT;
-- 
2.7.0.rc3