drm/xe/uapi: Remove useless max_page_size

The min_page_size is useful information to ensure alignment and it is
an API actually in use. However max_page_size doesn't bring any useful
information to the userspace hence being not used at all.

So, let's remove and only bring it back if that ever gets used.
Suggested-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>

drivers/gpu/drm/xe/xe_query.c

@@ -127,7 +127,6 @@ static int query_memory_usage(struct xe_device *xe,
 	usage->regions[0].mem_class = XE_MEM_REGION_CLASS_SYSMEM;
 	usage->regions[0].instance = 0;
 	usage->regions[0].min_page_size = PAGE_SIZE;
-	usage->regions[0].max_page_size = PAGE_SIZE;
 	usage->regions[0].total_size = man->size << PAGE_SHIFT;
 	if (perfmon_capable())
 		usage->regions[0].used = ttm_resource_manager_usage(man);
@@ -143,8 +142,6 @@ static int query_memory_usage(struct xe_device *xe,
 			usage->regions[usage->num_regions].min_page_size =
 				xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ?
 				SZ_64K : PAGE_SIZE;
-			usage->regions[usage->num_regions].max_page_size =
-				SZ_1G;
 			usage->regions[usage->num_regions].total_size =
 				man->size;
 

include/uapi/drm/xe_drm.h

@@ -174,10 +174,6 @@ struct drm_xe_query_mem_region {
 	 * kernel.
 	 */
 	__u32 min_page_size;
-	/**
-	 * @max_page_size: Max page-size in bytes for this region.
-	 */
-	__u32 max_page_size;
 	/**
 	 * @total_size: The usable size in bytes for this region.
 	 */