i965: Add Gen7+ fields to brw_instruction and add comments.

Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>

diff --git a/src/mesa/drivers/dri/i965/brw_structs.h b/src/mesa/drivers/dri/i965/brw_structs.h
index 75365e0756689e43af5bd44a1fd78d637769ad6d..c322edfbdcfaa0bde9f6a46d9769aad0abc99b3f 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_structs.h
+++ b/src/mesa/drivers/dri/i965/brw_structs.h
@@ -824,7 +824,7 @@ struct brw_instruction
       GLuint access_mode:1;
       GLuint mask_control:1;
       GLuint dependency_control:2;
-      GLuint compression_control:2; /* gen6: quater control */
+      GLuint compression_control:2; /* gen6: quarter control */
       GLuint thread_control:2;
       GLuint predicate_control:4;
       GLuint predicate_inverse:1;
@@ -849,7 +849,7 @@ struct brw_instruction
         GLuint src0_reg_type:3;
         GLuint src1_reg_file:2;
         GLuint src1_reg_type:3;
-        GLuint pad:1;
+         GLuint nibctrl:1; /* gen7+ */
         GLuint dest_subreg_nr:5;
         GLuint dest_reg_nr:8;
         GLuint dest_horiz_stride:2;
@@ -864,7 +864,7 @@ struct brw_instruction
         GLuint src0_reg_type:3;
         GLuint src1_reg_file:2;        /* 0x00000c00 */
         GLuint src1_reg_type:3;        /* 0x00007000 */
-        GLuint pad:1;
+         GLuint nibctrl:1; /* gen7+ */
         GLint dest_indirect_offset:10; /* offset against the deref'd address reg */
         GLuint dest_subreg_nr:3; /* subnr for the address reg a0.x */
         GLuint dest_horiz_stride:2;
@@ -879,7 +879,7 @@ struct brw_instruction
         GLuint src0_reg_type:3;
         GLuint src1_reg_file:2;
         GLuint src1_reg_type:3;
-        GLuint pad:1;
+         GLuint nibctrl:1; /* gen7+ */
         GLuint dest_writemask:4;
         GLuint dest_subreg_nr:1;
         GLuint dest_reg_nr:8;
@@ -893,7 +893,9 @@ struct brw_instruction
         GLuint dest_reg_type:3;
         GLuint src0_reg_file:2;
         GLuint src0_reg_type:3;
-        GLuint pad0:6;
+         GLuint src1_reg_file:2;
+         GLuint src1_reg_type:3;
+         GLuint nibctrl:1; /* gen7+ */
         GLuint dest_writemask:4;
         GLint dest_indirect_offset:6;
         GLuint dest_subreg_nr:3;
@@ -914,16 +916,21 @@ struct brw_instruction
       } branch_gen6;
 
       struct {
-        GLuint dest_reg_file:1;
+         GLuint dest_reg_file:1; /* gen6, not gen7+ */
         GLuint flag_subreg_num:1;
-        GLuint pad0:2;
+         GLuint flag_reg_nr:1; /* gen7+ */
+         GLuint pad0:1;
         GLuint src0_abs:1;
         GLuint src0_negate:1;
         GLuint src1_abs:1;
         GLuint src1_negate:1;
         GLuint src2_abs:1;
         GLuint src2_negate:1;
-        GLuint pad1:7;
+         GLuint src_type:2; /* gen7+ */
+         GLuint dst_type:2; /* gen7+ */
+         GLuint pad1:1;
+         GLuint nibctrl:1; /* gen7+ */
+         GLuint pad2:1;
         GLuint dest_writemask:4;
         GLuint dest_subreg_nr:3;
         GLuint dest_reg_nr:8;
@@ -945,7 +952,7 @@ struct brw_instruction
         GLuint src0_width:3;
         GLuint src0_vert_stride:4;
         GLuint flag_subreg_nr:1;
-        GLuint flag_reg_nr:1;
+         GLuint flag_reg_nr:1; /* gen7+ */
         GLuint pad:5;
       } da1;
 
@@ -960,7 +967,7 @@ struct brw_instruction
         GLuint src0_width:3;
         GLuint src0_vert_stride:4;
         GLuint flag_subreg_nr:1;
-        GLuint flag_reg_nr:1;
+         GLuint flag_reg_nr:1; /* gen7+ */
         GLuint pad:5;
       } ia1;
 
@@ -978,7 +985,7 @@ struct brw_instruction
         GLuint pad0:1;
         GLuint src0_vert_stride:4;
         GLuint flag_subreg_nr:1;
-        GLuint flag_reg_nr:1;
+         GLuint flag_reg_nr:1; /* gen7+ */
         GLuint pad1:5;
       } da16;
 
@@ -996,7 +1003,7 @@ struct brw_instruction
         GLuint pad0:1;
         GLuint src0_vert_stride:4;
         GLuint flag_subreg_nr:1;
-        GLuint flag_reg_nr:1;
+         GLuint flag_reg_nr:1; /* gen7+ */
         GLuint pad1:5;
       } ia16;