From 6fdd6f4aa5c75aba87439cf9f3a9aaa95cd331f6 Mon Sep 17 00:00:00 2001 From: Nirmoy Das Date: Tue, 4 May 2021 14:08:29 +0200 Subject: [PATCH] drm/amdgpu: add amdgpu_bo_vm bo type MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add new BO subclass that will be used by amdgpu vm code. Signed-off-by: Nirmoy Das Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 32 ++++++++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 10 ++++++++++ 2 files changed, 42 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index b382e9453a66..9615ba9d7d9b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -670,6 +670,38 @@ int amdgpu_bo_create_user(struct amdgpu_device *adev, *ubo_ptr = to_amdgpu_bo_user(bo_ptr); return r; } + +/** + * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object + * @adev: amdgpu device object + * @bp: parameters to be used for the buffer object + * @vmbo_ptr: pointer to the buffer object pointer + * + * Create a BO to be for GPUVM. + * + * Returns: + * 0 for success or a negative error code on failure. + */ + +int amdgpu_bo_create_vm(struct amdgpu_device *adev, + struct amdgpu_bo_param *bp, + struct amdgpu_bo_vm **vmbo_ptr) +{ + struct amdgpu_bo *bo_ptr; + int r; + + /* bo_ptr_size will be determined by the caller and it depends on + * num of amdgpu_vm_pt entries. + */ + BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm)); + r = amdgpu_bo_create(adev, bp, &bo_ptr); + if (r) + return r; + + *vmbo_ptr = to_amdgpu_bo_vm(bo_ptr); + return r; +} + /** * amdgpu_bo_validate - validate an &amdgpu_bo buffer object * @bo: pointer to the buffer object diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h index a44779d3e0a7..07687a147d45 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -44,6 +44,7 @@ #define AMDGPU_AMDKFD_CREATE_SVM_BO (1ULL << 62) #define to_amdgpu_bo_user(abo) container_of((abo), struct amdgpu_bo_user, bo) +#define to_amdgpu_bo_vm(abo) container_of((abo), struct amdgpu_bo_vm, bo) struct amdgpu_bo_param { unsigned long size; @@ -125,6 +126,12 @@ struct amdgpu_bo_user { }; +struct amdgpu_bo_vm { + struct amdgpu_bo bo; + struct amdgpu_bo *shadow; + struct amdgpu_vm_pt entries[]; +}; + static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo) { return container_of(tbo, struct amdgpu_bo, tbo); @@ -272,6 +279,9 @@ int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev, int amdgpu_bo_create_user(struct amdgpu_device *adev, struct amdgpu_bo_param *bp, struct amdgpu_bo_user **ubo_ptr); +int amdgpu_bo_create_vm(struct amdgpu_device *adev, + struct amdgpu_bo_param *bp, + struct amdgpu_bo_vm **ubo_ptr); void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, void **cpu_addr); int amdgpu_bo_create_shadow(struct amdgpu_device *adev, -- 2.11.0