drm/i915/guc: Add read/write helpers for ADS blob

Add helpers on top of iosys_map_read_field() /
iosys_map_write_field() functions so they always use the right
arguments and make code easier to read.

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220216174147.3073235-6-lucas.demarchi@intel.com

drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c

@@ -60,6 +60,13 @@ struct __guc_ads_blob {
 	struct guc_mmio_reg regset[0];
 } __packed;
 
+#define ads_blob_read(guc_, field_)					\
+	iosys_map_rd_field(&(guc_)->ads_map, 0, struct __guc_ads_blob, field_)
+
+#define ads_blob_write(guc_, field_, val_)				\
+	iosys_map_wr_field(&(guc_)->ads_map, 0, struct __guc_ads_blob,	\
+			   field_, val_)
+
 static u32 guc_ads_regset_size(struct intel_guc *guc)
 {
 	GEM_BUG_ON(!guc->ads_regset_size);