i965: Document brw_mask_reg().

Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-05-06 17:37:12 +03:00
parent 95774ca258
commit cbf204069d
1 changed files with 5 additions and 1 deletions
@@ -778,7 +778,11 @@ brw_flag_reg(int reg, int subreg)
                      BRW_ARF_FLAG + reg, subreg);
 }

-
+/**
+ * Return the mask register present in Gen4-5, or the related register present
+ * in Gen7.5 and later hardware referred to as "channel enable" register in
+ * the documentation.
+ */
 static inline struct brw_reg
 brw_mask_reg(unsigned subnr)
 {