i965: Use WE_all for FB write header setup on Broadwell.

I forgot to disable writemasking on the OR and MOV which set the render
target index and "source 0 alpha present to render target" bit.

Using get_element_ud is equivalent and avoids a line-wrap.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

diff --git a/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp b/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp
index 294ce46..c4f9d85 100644 (file)
--- a/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp
@@ -76,16 +76,17 @@ gen8_fs_generator::generate_fb_write(fs_inst *ir)
 
       if (ir->target > 0 && key->replicate_alpha) {
          /* Set "Source0 Alpha Present to RenderTarget" bit in the header. */
-         OR(vec1(retype(brw_message_reg(ir->base_mrf), BRW_REGISTER_TYPE_UD)),
-            vec1(retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD)),
-            brw_imm_ud(1 << 11));
+         gen8_instruction *inst =
+            OR(get_element_ud(brw_message_reg(ir->base_mrf), 0),
+               vec1(retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD)),
+               brw_imm_ud(1 << 11));
+         gen8_set_mask_control(inst, BRW_MASK_DISABLE);
       }
 
       if (ir->target > 0) {
          /* Set the render target index for choosing BLEND_STATE. */
-         MOV(retype(brw_vec1_reg(BRW_MESSAGE_REGISTER_FILE, ir->base_mrf, 2),
-                    BRW_REGISTER_TYPE_UD),
-             brw_imm_ud(ir->target));
+         MOV_RAW(brw_vec1_reg(BRW_MESSAGE_REGISTER_FILE, ir->base_mrf, 2),
+                 brw_imm_ud(ir->target));
       }
    }