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drm-uapi/i915_drm.h: Update from drm-next (2023-06-09)

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git://anongit.freedesktop.org/drm/drm 2222dcb0775d36de28992f56455ab3967b30d380

The motivation for this change in to get the uapi changes from:

commit 81b1b599dfd71c958418dad586fa72c8d30d1065
Author: Fei Yang <fei.yang@intel.com>
Date:   Tue Jun 6 12:00:42 2023 +0200

    drm/i915: Allow user to set cache at BO creation

Specifically, the I915_GEM_CREATE_EXT_SET_PAT extension.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22878>
This commit is contained in:
Jordan Justen 2023-06-22 21:20:29 -07:00 • committed by Marge Bot
parent fce905f613
commit b66678fb2e
1 changed files with 43 additions and 1 deletions
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44
include/drm-uapi/i915_drm.h
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@ -674,7 +674,8 @@ typedef struct drm_i915_irq_wait {
* If the IOCTL is successful, the returned parameter will be set to one of the
* following values:
* * 0 if HuC firmware load is not complete,
* * 1 if HuC firmware is authenticated and running.
* * 1 if HuC firmware is loaded and fully authenticated,
* * 2 if HuC firmware is loaded and authenticated for clear media only
*/
#define I915_PARAM_HUC_STATUS 42
@ -3679,9 +3680,13 @@ struct drm_i915_gem_create_ext {
*
* For I915_GEM_CREATE_EXT_PROTECTED_CONTENT usage see
* struct drm_i915_gem_create_ext_protected_content.
*
* For I915_GEM_CREATE_EXT_SET_PAT usage see
* struct drm_i915_gem_create_ext_set_pat.
*/
#define I915_GEM_CREATE_EXT_MEMORY_REGIONS 0
#define I915_GEM_CREATE_EXT_PROTECTED_CONTENT 1
#define I915_GEM_CREATE_EXT_SET_PAT 2
__u64 extensions;
};
@ -3796,6 +3801,43 @@ struct drm_i915_gem_create_ext_protected_content {
__u32 flags;
};
/**
* struct drm_i915_gem_create_ext_set_pat - The
* I915_GEM_CREATE_EXT_SET_PAT extension.
*
* If this extension is provided, the specified caching policy (PAT index) is
* applied to the buffer object.
*
* Below is an example on how to create an object with specific caching policy:
*
* .. code-block:: C
*
* struct drm_i915_gem_create_ext_set_pat set_pat_ext = {
* .base = { .name = I915_GEM_CREATE_EXT_SET_PAT },
* .pat_index = 0,
* };
* struct drm_i915_gem_create_ext create_ext = {
* .size = PAGE_SIZE,
* .extensions = (uintptr_t)&set_pat_ext,
* };
*
* int err = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE_EXT, &create_ext);
* if (err) ...
*/
struct drm_i915_gem_create_ext_set_pat {
/** @base: Extension link. See struct i915_user_extension. */
struct i915_user_extension base;
/**
* @pat_index: PAT index to be set
* PAT index is a bit field in Page Table Entry to control caching
* behaviors for GPU accesses. The definition of PAT index is
* platform dependent and can be found in hardware specifications,
*/
__u32 pat_index;
/** @rsvd: reserved for future use */
__u32 rsvd;
};
/* ID of the protected content session managed by i915 when PXP is active */
#define I915_PROTECTED_CONTENT_DEFAULT_SESSION 0xf