drm/xe/uapi: Remove unused QUERY_CONFIG_MEM_REGION_COUNT

As part of uAPI cleanup, remove this constant which is not used. Memory
regions can be queried with DRM_XE_DEVICE_QUERY_MEM_USAGE.
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_query.c

@@ -333,8 +333,6 @@ static int query_config(struct xe_device *xe, struct drm_xe_device_query *query)
 		xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ? SZ_64K : SZ_4K;
 	config->info[XE_QUERY_CONFIG_VA_BITS] = xe->info.va_bits;
 	config->info[XE_QUERY_CONFIG_GT_COUNT] = xe->info.gt_count;
-	config->info[XE_QUERY_CONFIG_MEM_REGION_COUNT] =
-		hweight_long(xe->info.mem_region_mask);
 	config->info[XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY] =
 		xe_exec_queue_device_get_max_priority(xe);
 

include/uapi/drm/xe_drm.h

@@ -311,6 +311,7 @@ struct drm_xe_query_mem_usage {
  * If a query is made with a struct drm_xe_device_query where .query
  * is equal to DRM_XE_DEVICE_QUERY_CONFIG, then the reply uses
  * struct drm_xe_query_config in .data.
+ *
  */
 struct drm_xe_query_config {
 	/** @num_params: number of parameters returned in info */
@@ -325,8 +326,7 @@ struct drm_xe_query_config {
 #define XE_QUERY_CONFIG_MIN_ALIGNMENT		2
 #define XE_QUERY_CONFIG_VA_BITS			3
 #define XE_QUERY_CONFIG_GT_COUNT		4
-#define XE_QUERY_CONFIG_MEM_REGION_COUNT	5
-#define XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY	6
+#define XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY	5
 	/** @info: array of elements containing the config info */
 	__u64 info[];
 };