On Wed, Jul 18, 2018 at 11:17:56AM +0200, Christian König wrote:
> Make struct amdgpu_bo a bit smaller.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Huang Rui <ray.huang at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 ++
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 3 ++-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> index 45367df96855..500121ad513c 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 345fcd176992..18945dd6982d 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;
> --
> 2.14.1
>
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