drm/amdkfd: Cleanup vm process info if init vm failed

If acquire_vm failed when initializing KFD vm, set vm->process_info to
NULL and free process info, otherwise, the future acquire_vm will
always fail as vm->process_info is not NULL.

Pass avm as parameter to remove the duplicate code.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h

@@ -271,9 +271,9 @@ int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device *adev, bool is_
 		((struct drm_file *)(drm_priv))->driver_priv)->vm)
 
 int amdgpu_amdkfd_gpuvm_set_vm_pasid(struct amdgpu_device *adev,
-				     struct file *filp, u32 pasid);
+				     struct amdgpu_vm *avm, u32 pasid);
 int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct amdgpu_device *adev,
-					struct file *filp,
+					struct amdgpu_vm *avm,
 					void **process_info,
 					struct dma_fence **ef);
 void amdgpu_amdkfd_gpuvm_release_process_vm(struct amdgpu_device *adev,

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c

@@ -1430,18 +1430,11 @@ static void amdgpu_amdkfd_gpuvm_unpin_bo(struct amdgpu_bo *bo)
 }
 
 int amdgpu_amdkfd_gpuvm_set_vm_pasid(struct amdgpu_device *adev,
-				     struct file *filp, u32 pasid)
+				     struct amdgpu_vm *avm, u32 pasid)
 
 {
-	struct amdgpu_fpriv *drv_priv;
-	struct amdgpu_vm *avm;
 	int ret;
 
-	ret = amdgpu_file_to_fpriv(filp, &drv_priv);
-	if (ret)
-		return ret;
-	avm = &drv_priv->vm;
-
 	/* Free the original amdgpu allocated pasid,
 	 * will be replaced with kfd allocated pasid.
 	 */
@@ -1458,19 +1451,12 @@ int amdgpu_amdkfd_gpuvm_set_vm_pasid(struct amdgpu_device *adev,
 }
 
 int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct amdgpu_device *adev,
-					   struct file *filp,
+					   struct amdgpu_vm *avm,
 					   void **process_info,
 					   struct dma_fence **ef)
 {
-	struct amdgpu_fpriv *drv_priv;
-	struct amdgpu_vm *avm;
 	int ret;
 
-	ret = amdgpu_file_to_fpriv(filp, &drv_priv);
-	if (ret)
-		return ret;
-	avm = &drv_priv->vm;
-
 	/* Already a compute VM? */
 	if (avm->process_info)
 		return -EINVAL;

drivers/gpu/drm/amd/amdkfd/kfd_process.c

@@ -1563,6 +1563,8 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev,
 int kfd_process_device_init_vm(struct kfd_process_device *pdd,
 			       struct file *drm_file)
 {
+	struct amdgpu_fpriv *drv_priv;
+	struct amdgpu_vm *avm;
 	struct kfd_process *p;
 	struct kfd_dev *dev;
 	int ret;
@@ -1573,10 +1575,15 @@ int kfd_process_device_init_vm(struct kfd_process_device *pdd,
 	if (pdd->drm_priv)
 		return -EBUSY;
 
+	ret = amdgpu_file_to_fpriv(drm_file, &drv_priv);
+	if (ret)
+		return ret;
+	avm = &drv_priv->vm;
+
 	p = pdd->process;
 	dev = pdd->dev;
 
-	ret = amdgpu_amdkfd_gpuvm_acquire_process_vm(dev->adev, drm_file,
+	ret = amdgpu_amdkfd_gpuvm_acquire_process_vm(dev->adev, avm,
 						     &p->kgd_process_info,
 						     &p->ef);
 	if (ret) {
@@ -1593,7 +1600,7 @@ int kfd_process_device_init_vm(struct kfd_process_device *pdd,
 	if (ret)
 		goto err_init_cwsr;
 
-	ret = amdgpu_amdkfd_gpuvm_set_vm_pasid(dev->adev, drm_file, p->pasid);
+	ret = amdgpu_amdkfd_gpuvm_set_vm_pasid(dev->adev, avm, p->pasid);
 	if (ret)
 		goto err_set_pasid;
 
@@ -1607,6 +1614,7 @@ int kfd_process_device_init_vm(struct kfd_process_device *pdd,
 	kfd_process_device_destroy_ib_mem(pdd);
 err_reserve_ib_mem:
 	pdd->drm_priv = NULL;
+	amdgpu_amdkfd_gpuvm_destroy_cb(dev->adev, avm);
 
 	return ret;
 }