Add new BO subclass that will be used by amdgpu vm code.
Signed-off-by: Nirmoy Das <nirmoy....@amd.com>
---
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 3f85ba8222ef..6870cc297ae6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -694,6 +694,38 @@ 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 11480c5a2716..a7fbf5f7051e 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,
--
2.31.1
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