[PATCH v3 15/19] drm/xe/uapi: Add flag for consulting madvise hints on svm prefetch
Matthew Brost
matthew.brost at intel.com
Wed May 28 16:29:18 UTC 2025
On Tue, May 27, 2025 at 10:09:59PM +0530, Himal Prasad Ghimiray wrote:
> Introduce flag DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC to ensure prefetching
> in madvise-advised memory regions
>
> v2 (Matthew Brost)
> - Add kernel-doc
>
> Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com>
> ---
> include/uapi/drm/xe_drm.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
> index e0d75226a724..03adfdc20dde 100644
> --- a/include/uapi/drm/xe_drm.h
> +++ b/include/uapi/drm/xe_drm.h
> @@ -1111,6 +1111,10 @@ struct drm_xe_vm_bind_op {
> /** @flags: Bind flags */
> __u32 flags;
>
> + /** DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC as prefetch_mem_region_instance
> + * ensures prefetching in madvise-advised memory region.
> + */
> +#define DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC -1
I think the prefered way is to put this 'struct drm_xe_vm_bind_op' based
on existing style.
Matt
> /**
> * @prefetch_mem_region_instance: Memory region to prefetch VMA to.
> * It is a region instance, not a mask.
> --
> 2.34.1
>
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