[PATCH 1/5] drm/amdgpu: allow variable BO struct creation
Christian König
ckoenig.leichtzumerken at gmail.com
Fri Mar 5 14:37:47 UTC 2021
Am 05.03.21 um 15:35 schrieb Nirmoy Das:
> Allow allocating BO structures with different structure size
> than struct amdgpu_bo.
>
> Signed-off-by: Nirmoy Das <nirmoy.das at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 ++
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 1 +
> 2 files changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> index 0bd22ed1dacf..745393472564 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> @@ -551,6 +551,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
>
> acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,
> sizeof(struct amdgpu_bo));
> + if (bp->bo_ptr_size < sizeof(struct amdgpu_bo))
> + bp->bo_ptr_size = sizeof(struct amdgpu_bo);
You should probably rather fix up all callers and make sure that the
parameter structure is correctly filled in.
Christian.
>
> bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
> if (bo == NULL)
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
> index 8cd96c9330dd..848dc0a017dd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
> @@ -40,6 +40,7 @@
> struct amdgpu_bo_param {
> unsigned long size;
> int byte_align;
> + u32 bo_ptr_size;
> u32 domain;
> u32 preferred_domain;
> u64 flags;
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