Mesa (master): i965: Update PIPE_CONTROL packet lengths for Broadwell.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 23827756f3198054ba9c812b6294e5317871f223
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=23827756f3198054ba9c812b6294e5317871f223

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Wed Dec 11 15:54:07 2013 -0800

i965: Update PIPE_CONTROL packet lengths for Broadwell.

On Broadwell, PIPE_CONTROL needs an extra DWord to accomodate the
48-bit addressing.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Eric Anholt <eric at anholt.net>
Reviewed-by: Matt Turner <mattst88 at gmail.com>

---

 src/mesa/drivers/dri/i965/intel_batchbuffer.c |   22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.c b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
index d1587cb..caec312 100644
--- a/src/mesa/drivers/dri/i965/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
@@ -440,7 +440,16 @@ intel_batchbuffer_data(struct brw_context *brw,
 void
 brw_emit_pipe_control_flush(struct brw_context *brw, uint32_t flags)
 {
-   if (brw->gen >= 6) {
+   if (brw->gen >= 8) {
+      BEGIN_BATCH(6);
+      OUT_BATCH(_3DSTATE_PIPE_CONTROL | (6 - 2));
+      OUT_BATCH(flags);
+      OUT_BATCH(0);
+      OUT_BATCH(0);
+      OUT_BATCH(0);
+      OUT_BATCH(0);
+      ADVANCE_BATCH();
+   } else if (brw->gen >= 6) {
       BEGIN_BATCH(5);
       OUT_BATCH(_3DSTATE_PIPE_CONTROL | (5 - 2));
       OUT_BATCH(flags);
@@ -471,7 +480,16 @@ brw_emit_pipe_control_write(struct brw_context *brw, uint32_t flags,
                             drm_intel_bo *bo, uint32_t offset,
                             uint32_t imm_lower, uint32_t imm_upper)
 {
-   if (brw->gen >= 6) {
+   if (brw->gen >= 8) {
+      BEGIN_BATCH(6);
+      OUT_BATCH(_3DSTATE_PIPE_CONTROL | (6 - 2));
+      OUT_BATCH(flags);
+      OUT_RELOC64(bo, I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  offset);
+      OUT_BATCH(imm_lower);
+      OUT_BATCH(imm_upper);
+      ADVANCE_BATCH();
+   } else if (brw->gen >= 6) {
       /* PPGTT/GGTT is selected by DW2 bit 2 on Sandybridge, but DW1 bit 24
        * on later platforms.  We always use PPGTT on Gen7+.
        */