[Mesa-dev] [PATCH 4/7] i965/gen7: Move SOL stage disable to gen7_sol_state.c

[Eric Anholt]

We'll be growing more code in here as we actually enable the unit.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/Makefile.sources   |    1 +
 src/mesa/drivers/dri/i965/brw_state_upload.c |    1 +
 src/mesa/drivers/dri/i965/gen7_disable.c     |    7 ---
 src/mesa/drivers/dri/i965/gen7_sol_state.c   |   56 ++++++++++++++++++++++++++
 4 files changed, 58 insertions(+), 7 deletions(-)
 create mode 100644 src/mesa/drivers/dri/i965/gen7_sol_state.c

diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources
index e50f9c3..3eeac6f 100644
--- a/src/mesa/drivers/dri/i965/Makefile.sources
+++ b/src/mesa/drivers/dri/i965/Makefile.sources
@@ -104,6 +104,7 @@ i965_C_SOURCES := \
 	gen7_misc_state.c \
 	gen7_sampler_state.c \
 	gen7_sf_state.c \
+	gen7_sol_state.c \
 	gen7_urb.c \
 	gen7_viewport_state.c \
 	gen7_vs_state.c \
diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c
index 74d01d8..66382b7 100644
--- a/src/mesa/drivers/dri/i965/brw_state_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_state_upload.c
@@ -220,6 +220,7 @@ const struct brw_tracked_state *gen7_atoms[] =
 
    &gen7_disable_stages,
    &gen7_vs_state,
+   &gen7_sol_state,
    &gen7_clip_state,
    &gen7_sbe_state,
    &gen7_sf_state,
diff --git a/src/mesa/drivers/dri/i965/gen7_disable.c b/src/mesa/drivers/dri/i965/gen7_disable.c
index a44d315..b37aa6c 100644
--- a/src/mesa/drivers/dri/i965/gen7_disable.c
+++ b/src/mesa/drivers/dri/i965/gen7_disable.c
@@ -122,13 +122,6 @@ disable_stages(struct brw_context *brw)
    OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_DS << 16 | (2 - 2));
    OUT_BATCH(0);
    ADVANCE_BATCH();
-
-   /* Disable the SOL stage */
-   BEGIN_BATCH(3);
-   OUT_BATCH(_3DSTATE_STREAMOUT << 16 | (3 - 2));
-   OUT_BATCH(0);
-   OUT_BATCH(0);
-   ADVANCE_BATCH();
 }
 
 const struct brw_tracked_state gen7_disable_stages = {
diff --git a/src/mesa/drivers/dri/i965/gen7_sol_state.c b/src/mesa/drivers/dri/i965/gen7_sol_state.c
new file mode 100644
index 0000000..fcda08d
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/gen7_sol_state.c
@@ -0,0 +1,56 @@
+/*
+ * 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.
+ */
+
+/**
+ * @file gen7_sol_state.c
+ *
+ * Controls the stream output logic (SOL) stage of the gen7 hardware, which is
+ * used to implement GL_EXT_transform_feedback.
+ */
+
+#include "brw_context.h"
+#include "brw_state.h"
+#include "brw_defines.h"
+#include "intel_batchbuffer.h"
+
+static void
+upload_sol_state(struct brw_context *brw)
+{
+   struct intel_context *intel = &brw->intel;
+
+   /* Disable the SOL stage */
+   BEGIN_BATCH(3);
+   OUT_BATCH(_3DSTATE_STREAMOUT << 16 | (3 - 2));
+   OUT_BATCH(0);
+   OUT_BATCH(0);
+   ADVANCE_BATCH();
+}
+
+const struct brw_tracked_state gen7_sol_state = {
+   .dirty = {
+      .mesa  = 0,
+      .brw   = BRW_NEW_BATCH,
+      .cache = 0,
+   },
+   .emit = upload_sol_state,
+};
-- 
1.7.7.3