drm/xe: Clean up xe_device_desc

Now that most of the characteristics of a device are associated with the
graphics and media IPs, the remaining contents of xe_device_desc can be
cleaned up a bit:

 * 'gt' is unused; drop it
 * DEV_INFO_FOR_EACH_FLAG only covers two flags and is only used in this
   one file; drop the unnecessary macro complexity
 * Convert .has_4tile to a single bitfield bit so that it can be packed
   with the other feature flags
 * Move 'platform' lower in the structure for better packing

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20230406235621.1914492-10-matthew.d.roper@intel.comSigned-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_pci.c

@@ -24,11 +24,6 @@
 #include "xe_pm.h"
 #include "xe_step.h"
 
-#define DEV_INFO_FOR_EACH_FLAG(func) \
-	func(require_force_probe); \
-	func(is_dgfx); \
-	/* Keep has_* in alphabetical order */ \
-
 struct xe_subplatform_desc {
 	enum xe_subplatform subplatform;
 	const char *name;
@@ -46,23 +41,20 @@ struct xe_device_desc {
 	const struct xe_graphics_desc *graphics;
 	const struct xe_media_desc *media;
 
-	enum xe_platform platform;
 	const char *platform_name;
 	const struct xe_subplatform_desc *subplatforms;
 	const struct xe_gt_desc *extra_gts;
 
-	u8 gt; /* GT number, 0 if undefined */
-
-#define DEFINE_FLAG(name) u8 name:1
-	DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
-#undef DEFINE_FLAG
+	enum xe_platform platform;
 
+	u8 require_force_probe:1;
+	u8 is_dgfx:1;
 	/*
 	 * FIXME: Xe doesn't care about presence/lack of 4tile since we can
 	 * already determine that from the graphics IP version.  This flag
 	 * should eventually move entirely into the display code's own logic.
 	 */
-	bool has_4tile;
+	u8 has_4tile:1;
 };
 
 #define PLATFORM(x)		\