From e1eb899b45781b9bb77e6d7772d6e67bb0bc1a18 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 25 Aug 2017 09:14:43 +0200 Subject: drm/amdgpu: add IOCTL interface for per VM BOs v3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the IOCTL interface so that applications can allocate per VM BOs. Still WIP since not all corner cases are tested yet, but this reduces average CS overhead for 10K BOs from 21ms down to 48us. v2: add some extra checks, remove the WIP tag v3: rename new flag to AMDGPU_GEM_CREATE_VM_ALWAYS_VALID Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- include/uapi/drm/amdgpu_drm.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 7b8fa11c2285..e055776f2f4c 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -87,6 +87,8 @@ extern "C" { #define AMDGPU_GEM_CREATE_SHADOW (1 << 4) /* Flag that allocating the BO should use linear VRAM */ #define AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS (1 << 5) +/* Flag that BO is always valid in this VM */ +#define AMDGPU_GEM_CREATE_VM_ALWAYS_VALID (1 << 6) struct drm_amdgpu_gem_create_in { /** the requested memory size */ -- cgit