drm/xe/uapi: Add flag for consulting madvise hints on svm prefetch

Introduce flag DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC to ensure prefetching in madvise-advised memory regions v2 (Matthew Brost) - Add kernel-doc v3 (Matthew Brost) - Fix kernel-doc

Himal Prasad Ghimiray committed 1 year ago

Commit fa1a82c1 parent 18d36fd1 file · +5 −0Browse files

Showing the changes to include/uapi (1 of 1 file). Show all

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include/uapi/drm/xe_drm.h+5−0

@@ -1010,6 +1010,10 @@ struct drm_xe_vm_destroy { · 1009 unmodified lines
1010	1010	* valid on VMs with DRM_XE_VM_CREATE_FLAG_FAULT_MODE set. The CPU address
1011	1011	* mirror flag are only valid for DRM_XE_VM_BIND_OP_MAP operations, the BO
1012	1012	* handle MBZ, and the BO offset MBZ.
	1013	+ *
	1014	+ * The @prefetch_mem_region_instance for %DRM_XE_VM_BIND_OP_PREFETCH can also be:
	1015	+ * - %DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC, which ensures prefetching occurs in
	1016	+ * the memory region advised by madvise.
1013	1017	*/
1014	1018	struct drm_xe_vm_bind_op {
1015	1019	/** @extensions: Pointer to the first extension struct, if any */
@@ -1115,6 +1119,7 @@ struct drm_xe_vm_bind_op { · 99 unmodified lines
1115	1119	/** @flags: Bind flags */
1116	1120	__u32 flags;
1117	1121
	1122	+#define DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC -1
1118	1123	/**
1119	1124	* @prefetch_mem_region_instance: Memory region to prefetch VMA to.
1120	1125	* It is a region instance, not a mask.