[PATCH v2 22/29] drm/xe: Add Xe SVM devmem_release vfunc

[Thomas Hellström]

On Tue, 2024-10-15 at 20:25 -0700, Matthew Brost wrote:
> Implement with a simple BO put.
> 
> v2:
>  - Use new drm_gpusvm_devmem_ops
> 
> Signed-off-by: Matthew Brost <matthew.brost at intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom at linux.intel.com>

> ---
>  drivers/gpu/drm/xe/xe_svm.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_svm.c
> b/drivers/gpu/drm/xe/xe_svm.c
> index 19fcb8f71791..976b4ce15db4 100644
> --- a/drivers/gpu/drm/xe/xe_svm.c
> +++ b/drivers/gpu/drm/xe/xe_svm.c
> @@ -5,6 +5,7 @@
>  
>  #include "drm_gpusvm.h"
>  
> +#include "xe_bo.h"
>  #include "xe_gt_tlb_invalidation.h"
>  #include "xe_migrate.h"
>  #include "xe_pt.h"
> @@ -419,6 +420,11 @@ static struct xe_bo *to_xe_bo(struct
> drm_gpusvm_devmem *devmem_allocation)
>  	return container_of(devmem_allocation, struct xe_bo,
> devmem_allocation);
>  }
>  
> +static void xe_svm_devmem_release(struct drm_gpusvm_devmem
> *devmem_allocation)
> +{
> +	xe_bo_put(to_xe_bo(devmem_allocation));
> +}
> +
>  static u64 block_offset_to_pfn(struct xe_mem_region *mr, u64 offset)
>  {
>  	return PHYS_PFN(offset + mr->hpa_base);
> @@ -454,6 +460,7 @@ static int xe_svm_populate_devmem_pfn(struct
> drm_gpusvm_devmem *devmem_allocatio
>  
>  __maybe_unused
>  static const struct drm_gpusvm_devmem_ops gpusvm_devmem_ops = {
> +	.devmem_release = xe_svm_devmem_release,
>  	.populate_devmem_pfn = xe_svm_populate_devmem_pfn,
>  	.copy_to_devmem = xe_svm_copy_to_devmem,
>  	.copy_to_ram = xe_svm_copy_to_ram,