drm/amdgpu: add AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS flag v3

Add a flag noting that a BO must be created using linear VRAM
and set this flag on all in kernel users where appropriate.

Hopefully I haven't missed anything.

v2: add it in a few more places, fix CPU mapping.
v3: rename to VRAM_CONTIGUOUS, fix typo in CS code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 22d331947aca..246bbd1ab5ec 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -264,7 +264,8 @@ static int amdgpu_vram_scratch_init(struct amdgpu_device *adev)
         if (adev->vram_scratch.robj == NULL) {
                 r = amdgpu_bo_create(adev, AMDGPU_GPU_PAGE_SIZE,
                                      PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM,
-                                     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+                                     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
+                                     AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
                                      NULL, NULL, &adev->vram_scratch.robj);
                 if (r) {
                         return r;