i965: Initial Ivybridge CC state setup.

The state itself still seems to be the same; the only change is that
each part (CC, BLEND, DEPTH_STENCIL) can now be uploaded independently.
Thus, we still rely on the code in gen6_cc.c to set up the state.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

src/mesa/drivers/dri/i965/Makefile

@@ -97,6 +97,7 @@ DRIVER_SOURCES = \
 	gen6_viewport_state.c \
 	gen6_vs_state.c \
 	gen6_wm_state.c \
+	gen7_cc_state.c \
 	gen7_sf_state.c \
 	gen7_urb.c \
 	gen7_wm_state.c

src/mesa/drivers/dri/i965/brw_defines.h

@@ -874,6 +874,8 @@
 #define CMD_VF_STATISTICS_965          0x780b
 #define CMD_VF_STATISTICS_GM45        0x680b
 #define _3DSTATE_CC_STATE_POINTERS		0x780e /* GEN6+ */
+#define _3DSTATE_BLEND_STATE_POINTERS		0x7824 /* GEN7+ */
+#define _3DSTATE_DEPTH_STENCIL_STATE_POINTERS	0x7825 /* GEN7+ */
 
 #define _3DSTATE_URB				0x7805 /* GEN6 */
 # define GEN6_URB_VS_SIZE_SHIFT				16

src/mesa/drivers/dri/i965/brw_state.h

@@ -111,6 +111,9 @@ extern const struct brw_tracked_state gen6_vs_constants;
 extern const struct brw_tracked_state gen6_vs_state;
 extern const struct brw_tracked_state gen6_wm_constants;
 extern const struct brw_tracked_state gen6_wm_state;
+extern const struct brw_tracked_state gen7_blend_state_pointer;
+extern const struct brw_tracked_state gen7_cc_state_pointer;
+extern const struct brw_tracked_state gen7_depth_stencil_state_pointer;
 extern const struct brw_tracked_state gen7_ps_state;
 extern const struct brw_tracked_state gen7_sbe_state;
 extern const struct brw_tracked_state gen7_sf_state;

src/mesa/drivers/dri/i965/brw_state_upload.c

@@ -195,7 +195,9 @@ const struct brw_tracked_state *gen7_atoms[] =
    &gen6_blend_state,		/* must do before cc unit */
    &gen6_color_calc_state,	/* must do before cc unit */
    &gen6_depth_stencil_state,	/* must do before cc unit */
-   &gen6_cc_state_pointers,
+   &gen7_blend_state_pointer,
+   &gen7_cc_state_pointer,
+   &gen7_depth_stencil_state_pointer,
 
    &brw_vs_constants, /* Before vs_surfaces and constant_buffer */
    &brw_wm_constants, /* Before wm_surfaces and constant_buffer */

src/mesa/drivers/dri/i965/gen7_cc_state.c

@@ -0,0 +1,89 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "brw_context.h"
+#include "brw_state.h"
+#include "brw_defines.h"
+#include "brw_util.h"
+#include "intel_batchbuffer.h"
+#include "main/macros.h"
+
+static void
+upload_cc_state_pointers(struct brw_context *brw)
+{
+   struct intel_context *intel = &brw->intel;
+
+   BEGIN_BATCH(2);
+   OUT_BATCH(_3DSTATE_CC_STATE_POINTERS << 16 | (2 - 2));
+   OUT_BATCH(brw->cc.state_offset | 1);
+   ADVANCE_BATCH();
+}
+
+const struct brw_tracked_state gen7_cc_state_pointer = {
+   .dirty = {
+      .mesa = 0,
+      .brw = BRW_NEW_BATCH,
+      .cache = CACHE_NEW_COLOR_CALC_STATE
+   },
+   .emit = upload_cc_state_pointers,
+};
+
+static void
+upload_blend_state_pointer(struct brw_context *brw)
+{
+   struct intel_context *intel = &brw->intel;
+
+   BEGIN_BATCH(2);
+   OUT_BATCH(_3DSTATE_BLEND_STATE_POINTERS << 16 | (2 - 2));
+   OUT_BATCH(brw->cc.blend_state_offset | 1);
+   ADVANCE_BATCH();
+}
+
+const struct brw_tracked_state gen7_blend_state_pointer = {
+   .dirty = {
+      .mesa = 0,
+      .brw = BRW_NEW_BATCH,
+      .cache = CACHE_NEW_BLEND_STATE
+   },
+   .emit = upload_blend_state_pointer,
+};
+
+static void
+upload_depth_stencil_state_pointer(struct brw_context *brw)
+{
+   struct intel_context *intel = &brw->intel;
+
+   BEGIN_BATCH(2);
+   OUT_BATCH(_3DSTATE_DEPTH_STENCIL_STATE_POINTERS << 16 | (2 - 2));
+   OUT_BATCH(brw->cc.depth_stencil_state_offset | 1);
+   ADVANCE_BATCH();
+}
+
+const struct brw_tracked_state gen7_depth_stencil_state_pointer = {
+   .dirty = {
+      .mesa = 0,
+      .brw = BRW_NEW_BATCH,
+      .cache = CACHE_NEW_DEPTH_STENCIL_STATE
+   },
+   .emit = upload_depth_stencil_state_pointer,
+};