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/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index ee6a48a09214..bd4d041717bf 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1273,7 +1273,8 @@ static int gfx_v8_0_rlc_init(struct amdgpu_device *adev)
                 if (adev->gfx.rlc.clear_state_obj == NULL) {
                         r = amdgpu_bo_create(adev, dws * 4, 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->gfx.rlc.clear_state_obj);
                         if (r) {
@@ -1315,7 +1316,8 @@ static int gfx_v8_0_rlc_init(struct amdgpu_device *adev)
                 if (adev->gfx.rlc.cp_table_obj == NULL) {
                         r = amdgpu_bo_create(adev, adev->gfx.rlc.cp_table_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->gfx.rlc.cp_table_obj);
                         if (r) {