freedreno: gallium driver for adreno

Currently works on a220.  Others in the a2xx family look pretty similar
and should be pretty straightforward to support with the same driver.

The a3xx has a new shader ISA, and while many registers appear similar,
the register addresses have been completely shuffled around.  I am not
sure yet whether it is best to support with the same driver, but
different compiler, or whether it should be split into a different
driver.

v1: original
v2: build file updates from review comments, and remove GPL licensed
    header files from msm kernel
v3: smarter temp/pred register assignment, fix clear and depth/stencil
    format issues, resource_transfer fixes, scissor fixes

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 60 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/freedreno_zsa.h b/src/gallium/drivers/freedreno/freedreno_zsa.h
new file mode 100644
index 00000000000..d1112f1572f
--- /dev/null
+++ b/src/gallium/drivers/freedreno/freedreno_zsa.h
@@ -0,0 +1,60 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2012 Rob Clark <[email protected]>
+ *
+ * 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:
+ *    Rob Clark <[email protected]>
+ */
+
+#ifndef FREEDRENO_ZSA_H_
+#define FREEDRENO_ZSA_H_
+
+
+#include "pipe/p_state.h"
+#include "pipe/p_context.h"
+
+#include "freedreno_util.h"
+
+struct fd_zsa_stateobj {
+	struct pipe_depth_stencil_alpha_state base;
+	uint32_t rb_depthcontrol;
+	uint32_t rb_colorcontrol;   /* must be OR'd w/ blend->rb_colorcontrol */
+	uint32_t rb_alpha_ref;
+	uint32_t rb_stencilrefmask;
+	uint32_t rb_stencilrefmask_bf;
+};
+
+void fd_zsa_init(struct pipe_context *pctx);
+
+static inline bool fd_depth_enabled(struct fd_zsa_stateobj *zsa)
+{
+	return !!(zsa->rb_depthcontrol & RB_DEPTHCONTROL_Z_ENABLE);
+}
+
+static inline bool fd_stencil_enabled(struct fd_zsa_stateobj *zsa)
+{
+	//RB_DEPTHCONTROL_STENCIL_ENABLE
+	return !!(zsa->rb_depthcontrol & RB_DEPTHCONTROL_STENCIL_ENABLE);
+}
+
+#endif /* FREEDRENO_ZSA_H_ */