i965: Add untested passthrough GS setup.

1 files changed, 74 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/gen6_gs_state.c b/src/mesa/drivers/dri/i965/gen6_gs_state.c
new file mode 100644
index 0000000000..3a16bd368c
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/gen6_gs_state.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include "brw_context.h"
+#include "brw_state.h"
+#include "brw_defines.h"
+#include "brw_util.h"
+#include "main/macros.h"
+#include "main/enums.h"
+#include "intel_batchbuffer.h"
+
+static void
+upload_gs_state(struct brw_context *brw)
+{
+   struct intel_context *intel = &brw->intel;
+
+   BEGIN_BATCH(6);
+   OUT_BATCH(CMD_3D_GS_STATE << 16 | (6 - 2));
+   OUT_BATCH(0); /* prog_bo */
+   /* OUT_RELOC(brw->gs.prog_bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 0); */
+   OUT_BATCH((0 << GEN6_GS_SAMPLER_COUNT_SHIFT) |
+	     (0 << GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
+   OUT_BATCH(0); /* scratch space base offset */
+   OUT_BATCH((1 << GEN6_GS_DISPATCH_START_GRF_SHIFT) |
+	     (brw->gs.prog_data->urb_read_length << GEN6_GS_URB_READ_LENGTH_SHIFT) |
+	     (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT));
+   OUT_BATCH((0 << GEN6_GS_MAX_THREADS_SHIFT) |
+	     GEN6_GS_STATISTICS_ENABLE);
+   ADVANCE_BATCH();
+
+   /* Disable all the constant buffers. */
+   BEGIN_BATCH(5);
+   OUT_BATCH(CMD_3D_CONSTANT_GS_STATE << 16 | (5 - 2));
+   OUT_BATCH(0);
+   OUT_BATCH(0);
+   OUT_BATCH(0);
+   OUT_BATCH(0);
+   ADVANCE_BATCH();
+}
+
+const struct brw_tracked_state gen6_gs_state = {
+   .dirty = {
+      .mesa  = _NEW_TRANSFORM,
+      .brw   = (BRW_NEW_CURBE_OFFSETS |
+		BRW_NEW_URB_FENCE |
+		BRW_NEW_CONTEXT),
+      .cache = CACHE_NEW_GS_PROG
+   },
+   .emit = upload_gs_state,
+};