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, 122 insertions, 0 deletions

diff --git a/src/gallium/targets/dri-freedreno/Makefile.am b/src/gallium/targets/dri-freedreno/Makefile.am
new file mode 100644
index 0000000..59293a6
--- /dev/null
+++ b/src/gallium/targets/dri-freedreno/Makefile.am
@@ -0,0 +1,71 @@
+# 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 = \
+	$(GALLIUM_CFLAGS) \
+	$(PTHREAD_CFLAGS) \
+	$(LIBDRM_CFLAGS)
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/src/gallium/drivers \
+	-I$(top_srcdir)/src/gallium/winsys \
+	-I$(top_srcdir)/src/mesa \
+	-I$(top_srcdir)/src/mapi \
+	-I$(top_builddir)/src/mesa/drivers/dri/common \
+	-DGALLIUM_RBUG \
+	-DGALLIUM_TRACE
+
+dridir = $(DRI_DRIVER_INSTALL_DIR)
+dri_LTLIBRARIES = kgsl_dri.la
+
+nodist_EXTRA_kgsl_dri_la_SOURCES = dummy.cpp
+kgsl_dri_la_SOURCES = \
+	target.c \
+	$(top_srcdir)/src/mesa/drivers/dri/common/utils.c \
+	$(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
+	$(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
+
+kgsl_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
+
+kgsl_dri_la_LIBADD = \
+	$(top_builddir)/src/mesa/libmesagallium.la \
+	$(top_builddir)/src/gallium/auxiliary/libgallium.la \
+	$(top_builddir)/src/gallium/state_trackers/dri/drm/libdridrm.la \
+	$(top_builddir)/src/gallium/winsys/freedreno/drm/libfreedrenodrm.la \
+	$(top_builddir)/src/gallium/drivers/freedreno/libfreedreno.la \
+	$(top_builddir)/src/gallium/drivers/trace/libtrace.la \
+	$(top_builddir)/src/gallium/drivers/rbug/librbug.la \
+	$(GALLIUM_DRI_LIB_DEPS) \
+	$(LIBDRM_LIBS) \
+	$(FREEDRENO_LIBS)
+
+if HAVE_MESA_LLVM
+kgsl_dri_la_LDFLAGS += $(LLVM_LDFLAGS)
+kgsl_dri_la_LIBADD += $(LLVM_LIBS)
+endif
+
+# Provide compatibility with scripts for the old Mesa build system for
+# a while by putting a link to the driver into /lib of the build tree.
+all-local: kgsl_dri.la
+	$(MKDIR_P) $(top_builddir)/$(LIB_DIR)/gallium
+	ln -f .libs/kgsl_dri.so $(top_builddir)/$(LIB_DIR)/gallium/kgsl_dri.so
diff --git a/src/gallium/targets/dri-freedreno/target.c b/src/gallium/targets/dri-freedreno/target.c
new file mode 100644
index 0000000..dcaf299
--- /dev/null
+++ b/src/gallium/targets/dri-freedreno/target.c
@@ -0,0 +1,20 @@
+
+#include "target-helpers/inline_debug_helper.h"
+#include "state_tracker/drm_driver.h"
+#include "freedreno/drm/freedreno_drm_public.h"
+
+static struct pipe_screen *
+create_screen(int fd)
+{
+   struct pipe_screen *screen;
+
+   screen = fd_drm_screen_create(fd);
+   if (!screen)
+      return NULL;
+
+   screen = debug_screen_wrap(screen);
+
+   return screen;
+}
+
+DRM_DRIVER_DESCRIPTOR("freedreno", "kgsl", create_screen, NULL)
diff --git a/src/gallium/targets/egl-static/Makefile.am b/src/gallium/targets/egl-static/Makefile.am
index 5c40ae8..31dbc79 100644
--- a/src/gallium/targets/egl-static/Makefile.am
+++ b/src/gallium/targets/egl-static/Makefile.am
@@ -191,6 +191,15 @@ egl_gallium_la_LIBADD += \
 	$(top_builddir)/src/gallium/drivers/svga/libsvga.la
 endif
 
+if HAVE_GALLIUM_FREEDRENO
+AM_CPPFLAGS += -D_EGL_PIPE_FREEDRENO=1
+egl_gallium_la_LIBADD += \
+	$(top_builddir)/src/gallium/winsys/freedreno/drm/libfreedrenodrm.la \
+	$(top_builddir)/src/gallium/drivers/freedreno/libfreedreno.la \
+	$(FREEDRENO_LIBS)
+
+endif
+
 if HAVE_GALLIUM_SOFTPIPE
 AM_CPPFLAGS += -DGALLIUM_SOFTPIPE -DGALLIUM_RBUG -DGALLIUM_TRACE
 egl_gallium_la_LIBADD += \
diff --git a/src/gallium/targets/egl-static/egl_pipe.c b/src/gallium/targets/egl-static/egl_pipe.c
index 407c6a8..e05490b 100644
--- a/src/gallium/targets/egl-static/egl_pipe.c
+++ b/src/gallium/targets/egl-static/egl_pipe.c
@@ -45,6 +45,8 @@
 /* for vmwgfx */
 #include "svga/drm/svga_drm_public.h"
 #include "svga/svga_public.h"
+/* for freedreno */
+#include "freedreno/drm/freedreno_drm_public.h"
 
 static struct pipe_screen *
 pipe_i915_create_screen(int fd)
@@ -179,6 +181,24 @@ pipe_vmwgfx_create_screen(int fd)
 #endif
 }
 
+static struct pipe_screen *
+pipe_freedreno_create_screen(int fd)
+{
+#if _EGL_PIPE_FREEDRENO
+   struct pipe_screen *screen;
+
+   screen = fd_drm_screen_create(fd);
+   if (!screen)
+      return NULL;
+
+   screen = debug_screen_wrap(screen);
+
+   return screen;
+#else
+   return NULL;
+#endif
+}
+
 struct pipe_screen *
 egl_pipe_create_drm_screen(const char *name, int fd)
 {
@@ -194,6 +214,8 @@ egl_pipe_create_drm_screen(const char *name, int fd)
       return pipe_radeonsi_create_screen(fd);
    else if (strcmp(name, "vmwgfx") == 0)
       return pipe_vmwgfx_create_screen(fd);
+   else if (strcmp(name, "kgsl") == 0)
+      return pipe_freedreno_create_screen(fd);
    else
       return NULL;
 }