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drm/xe/uapi: Document drm_xe_query_config keys

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Provide a description of the keys used the struct
drm_xe_query_config info array.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/637
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Francois Dugast
2023-12-15 15:45:43 +00:00
committed by Rodrigo Vivi
parent ff6c6bc552
commit af8ea4162b
1 changed files with 20 additions and 0 deletions
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20
include/uapi/drm/xe_drm.h
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@@ -350,11 +350,31 @@ struct drm_xe_query_config {
/** @pad: MBZ */
__u32 pad;
/*
* Device ID (lower 16 bits) and the device revision (next
* 8 bits)
*/
#define DRM_XE_QUERY_CONFIG_REV_AND_DEVICE_ID 0
/*
* Flags describing the device configuration, see list below
*/
#define DRM_XE_QUERY_CONFIG_FLAGS 1
/*
* Flag is set if the device has usable VRAM
*/
#define DRM_XE_QUERY_CONFIG_FLAG_HAS_VRAM (1 << 0)
/*
* Minimal memory alignment required by this device,
* typically SZ_4K or SZ_64K
*/
#define DRM_XE_QUERY_CONFIG_MIN_ALIGNMENT 2
/*
* Maximum bits of a virtual address
*/
#define DRM_XE_QUERY_CONFIG_VA_BITS 3
/*
* Value of the highest available exec queue priority
*/
#define DRM_XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY 4
/** @info: array of elements containing the config info */
__u64 info[];