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authorChristian König <christian.koenig@amd.com>2018-07-18 11:16:35 +0200
committerAlex Deucher <alexander.deucher@amd.com>2018-07-25 15:06:13 -0500
commitbf314ca3f10d4ba4335808dc678631908881db8b (patch)
tree36e66a47cb29c7f379430b6221657f71bb402cb6
parentc704ab18e0a26a5dc7e947af6e8e01585380518b (diff)
downloadop-kernel-dev-bf314ca3f10d4ba4335808dc678631908881db8b.zip
op-kernel-dev-bf314ca3f10d4ba4335808dc678631908881db8b.tar.gz
drm/amdgpu: reduce the number of placements for a BO
Make struct amdgpu_bo a bit smaller. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_object.c2
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_object.h3
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 7b3398c..21bfa2d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -216,6 +216,8 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
c++;
}
+ BUG_ON(c >= AMDGPU_BO_MAX_PLACEMENTS);
+
placement->num_placement = c;
placement->placement = places;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 345fcd1..18945dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -32,6 +32,7 @@
#include "amdgpu.h"
#define AMDGPU_BO_INVALID_OFFSET LONG_MAX
+#define AMDGPU_BO_MAX_PLACEMENTS 3
struct amdgpu_bo_param {
unsigned long size;
@@ -77,7 +78,7 @@ struct amdgpu_bo {
/* Protected by tbo.reserved */
u32 preferred_domains;
u32 allowed_domains;
- struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
+ struct ttm_place placements[AMDGPU_BO_MAX_PLACEMENTS];
struct ttm_placement placement;
struct ttm_buffer_object tbo;
struct ttm_bo_kmap_obj kmap;
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