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 <robdclark@gmail.com>

4 files changed, 60 insertions, 0 deletions

diff --git a/src/gallium/winsys/freedreno/drm/.gitignore b/src/gallium/winsys/freedreno/drm/.gitignore
new file mode 100644
index 0000000..f3c7a7c
--- /dev/null
+++ b/src/gallium/winsys/freedreno/drm/.gitignore
@@ -0,0 +1 @@
+Makefile
diff --git a/src/gallium/winsys/freedreno/drm/Makefile.am b/src/gallium/winsys/freedreno/drm/Makefile.am
new file mode 100644
index 0000000..58f69d1
--- /dev/null
+++ b/src/gallium/winsys/freedreno/drm/Makefile.am
@@ -0,0 +1,32 @@
+# Copyright © 2012 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 $(top_srcdir)/src/gallium/Automake.inc
+
+AM_CFLAGS = \
+	-I$(top_srcdir)/src/gallium/drivers \
+	$(GALLIUM_CFLAGS) \
+	$(FREEDRENO_CFLAGS)
+
+noinst_LTLIBRARIES = libfreedrenodrm.la
+
+libfreedrenodrm_la_SOURCES = freedreno_drm_winsys.c
diff --git a/src/gallium/winsys/freedreno/drm/freedreno_drm_public.h b/src/gallium/winsys/freedreno/drm/freedreno_drm_public.h
new file mode 100644
index 0000000..a7ba207
--- /dev/null
+++ b/src/gallium/winsys/freedreno/drm/freedreno_drm_public.h
@@ -0,0 +1,9 @@
+
+#ifndef __FREEDRENO_DRM_PUBLIC_H__
+#define __FREEDRENO_DRM_PUBLIC_H__
+
+struct pipe_screen;
+
+struct pipe_screen *fd_drm_screen_create(int drmFD);
+
+#endif
diff --git a/src/gallium/winsys/freedreno/drm/freedreno_drm_winsys.c b/src/gallium/winsys/freedreno/drm/freedreno_drm_winsys.c
new file mode 100644
index 0000000..8afb9cd
--- /dev/null
+++ b/src/gallium/winsys/freedreno/drm/freedreno_drm_winsys.c
@@ -0,0 +1,18 @@
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "util/u_format.h"
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+
+#include "freedreno_drm_public.h"
+
+#include "freedreno/freedreno_screen.h"
+
+struct pipe_screen *
+fd_drm_screen_create(int fd)
+{
+	struct fd_device *dev = fd_device_new(fd);
+	if (!dev)
+		return NULL;
+	return fd_screen_create(dev);
+}