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, 4 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 06f24322e7c3..7b9e94f235ab 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1416,7 +1416,8 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
                                      AMDGPU_GPU_PAGE_SIZE, true,
                                      AMDGPU_GEM_DOMAIN_VRAM,
                                      AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
-                                     AMDGPU_GEM_CREATE_SHADOW,
+                                     AMDGPU_GEM_CREATE_SHADOW |
+                                     AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
                                      NULL, resv, &pt);
                 if (r)
                         goto error_free;
@@ -1626,7 +1627,8 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
         r = amdgpu_bo_create(adev, pd_size, align, true,
                              AMDGPU_GEM_DOMAIN_VRAM,
                              AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
-                             AMDGPU_GEM_CREATE_SHADOW,
+                             AMDGPU_GEM_CREATE_SHADOW |
+                             AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
                              NULL, NULL, &vm->page_directory);
         if (r)
                 goto error_free_sched_entity;