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drm/xe/uapi: Be more specific about the vm_bind prefetch region

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Let's bring a bit of clarity on this 'region' field that is
part of vm_bind operation struct. Rename and document to make
it more than obvious that it is a region instance and not a
mask and also that it should only be used with the prefetch
operation itself.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
This commit is contained in:
Rodrigo Vivi
2023-11-14 13:34:34 +00:00
parent 4a349c8611
commit aaa115ffaa
2 changed files with 14 additions and 9 deletions
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8
include/uapi/drm/xe_drm.h
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@@ -673,8 +673,12 @@ struct drm_xe_vm_bind_op {
/** @flags: Bind flags */
__u32 flags;
/** @mem_region: Memory region to prefetch VMA to, instance not a mask */
__u32 region;
/**
* @prefetch_mem_region_instance: Memory region to prefetch VMA to.
* It is a region instance, not a mask.
* To be used only with %DRM_XE_VM_BIND_OP_PREFETCH operation.
*/
__u32 prefetch_mem_region_instance;
/** @reserved: Reserved */
__u64 reserved[2];