imx: gallium driver for imx-drm scanout driver

Changes from V1 -> V2:
 - updated Copyright
 - added $(top_srcdir)/src/gallium/winsys to include path (suggested by Emil)
 - adapted driver to new renderonly API

Signed-off-by: Christian Gmeiner <[email protected]>
Acked-by: Emil Velikov <[email protected]>

12 files changed, 182 insertions, 0 deletions

diff --git a/src/gallium/Makefile.am b/src/gallium/Makefile.am
index 9e47e9f5a45..f910f3187eb 100644
--- a/src/gallium/Makefile.am
+++ b/src/gallium/Makefile.am
@@ -72,6 +72,10 @@ if HAVE_GALLIUM_ETNAVIV
 SUBDIRS += drivers/etnaviv winsys/etnaviv/drm
 endif
 
+if HAVE_GALLIUM_IMX
+SUBDIRS += drivers/imx winsys/imx/drm
+endif
+
 ## swrast/softpipe
 if HAVE_GALLIUM_SOFTPIPE
 SUBDIRS += drivers/softpipe
diff --git a/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c b/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
index 99d9da6fd0a..6c89fe5ead1 100644
--- a/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
+++ b/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
@@ -158,6 +158,11 @@ static const struct drm_driver_descriptor driver_descriptors[] = {
         .driver_name = "etnaviv",
         .create_screen = pipe_etna_create_screen,
         .configuration = configuration_query,
+    },
+    {
+        .driver_name = "imx-drm",
+        .create_screen = pipe_imx_drm_create_screen,
+        .configuration = configuration_query,
     }
 };
 #endif
diff --git a/src/gallium/auxiliary/target-helpers/drm_helper.h b/src/gallium/auxiliary/target-helpers/drm_helper.h
index e056c58ba96..f847b17dd68 100644
--- a/src/gallium/auxiliary/target-helpers/drm_helper.h
+++ b/src/gallium/auxiliary/target-helpers/drm_helper.h
@@ -289,4 +289,28 @@ pipe_etna_create_screen(int fd)
 
 #endif
 
+#ifdef GALLIUM_IMX
+#include "imx/drm/imx_drm_public.h"
+
+struct pipe_screen *
+pipe_imx_drm_create_screen(int fd)
+{
+   struct pipe_screen *screen;
+
+   screen = imx_drm_screen_create(fd);
+   return screen ? debug_screen_wrap(screen) : NULL;
+}
+
+#else
+
+struct pipe_screen *
+pipe_imx_drm_create_screen(int fd)
+{
+   fprintf(stderr, "imx-drm: driver missing\n");
+   return NULL;
+}
+
+#endif
+
+
 #endif /* DRM_HELPER_H */
diff --git a/src/gallium/auxiliary/target-helpers/drm_helper_public.h b/src/gallium/auxiliary/target-helpers/drm_helper_public.h
index 73cf1da073d..bc12b2155e4 100644
--- a/src/gallium/auxiliary/target-helpers/drm_helper_public.h
+++ b/src/gallium/auxiliary/target-helpers/drm_helper_public.h
@@ -37,4 +37,7 @@ pipe_vc4_create_screen(int fd);
 struct pipe_screen *
 pipe_etna_create_screen(int fd);
 
+struct pipe_screen *
+pipe_imx_drm_create_screen(int fd);
+
 #endif /* _DRM_HELPER_PUBLIC_H */
diff --git a/src/gallium/drivers/imx/Automake.inc b/src/gallium/drivers/imx/Automake.inc
new file mode 100644
index 00000000000..92560a2c6b8
--- /dev/null
+++ b/src/gallium/drivers/imx/Automake.inc
@@ -0,0 +1,9 @@
+if HAVE_GALLIUM_IMX
+
+TARGET_DRIVERS += imx-drm
+TARGET_CPPFLAGS += -DGALLIUM_IMX
+TARGET_LIB_DEPS += \
+    $(top_builddir)/src/gallium/winsys/imx/drm/libimxdrm.la \
+    $(LIBDRM_LIBS)
+
+endif
diff --git a/src/gallium/drivers/imx/Makefile.am b/src/gallium/drivers/imx/Makefile.am
new file mode 100644
index 00000000000..44f526fadb9
--- /dev/null
+++ b/src/gallium/drivers/imx/Makefile.am
@@ -0,0 +1,8 @@
+include $(top_srcdir)/src/gallium/Automake.inc
+
+AM_CPPFLAGS = \
+	$(GALLIUM_CFLAGS)
+
+noinst_LTLIBRARIES = libimx.la
+
+libimx_la_SOURCES =
diff --git a/src/gallium/targets/dri/Makefile.am b/src/gallium/targets/dri/Makefile.am
index e4404cc50e0..bca747faa4a 100644
--- a/src/gallium/targets/dri/Makefile.am
+++ b/src/gallium/targets/dri/Makefile.am
@@ -92,6 +92,7 @@ include $(top_srcdir)/src/gallium/drivers/vc4/Automake.inc
 include $(top_srcdir)/src/gallium/drivers/virgl/Automake.inc
 
 include $(top_srcdir)/src/gallium/drivers/etnaviv/Automake.inc
+include $(top_srcdir)/src/gallium/drivers/imx/Automake.inc
 
 include $(top_srcdir)/src/gallium/drivers/softpipe/Automake.inc
 include $(top_srcdir)/src/gallium/drivers/llvmpipe/Automake.inc
diff --git a/src/gallium/targets/dri/target.c b/src/gallium/targets/dri/target.c
index 98dfb15dbd2..441a27ff637 100644
--- a/src/gallium/targets/dri/target.c
+++ b/src/gallium/targets/dri/target.c
@@ -165,6 +165,14 @@ PUBLIC const __DRIextension **__driDriverGetExtensions_i965(void)
 
 #if defined(GALLIUM_ETNAVIV)
 
+const __DRIextension **__driDriverGetExtensions_imx_drm(void);
+
+PUBLIC const __DRIextension **__driDriverGetExtensions_imx_drm(void)
+{
+   globalDriverAPI = &galliumdrm_driver_api;
+   return galliumdrm_driver_extensions;
+}
+
 const __DRIextension **__driDriverGetExtensions_etnaviv(void);
 
 PUBLIC const __DRIextension **__driDriverGetExtensions_etnaviv(void)
diff --git a/src/gallium/winsys/imx/drm/Makefile.am b/src/gallium/winsys/imx/drm/Makefile.am
new file mode 100644
index 00000000000..ad3d0b79a90
--- /dev/null
+++ b/src/gallium/winsys/imx/drm/Makefile.am
@@ -0,0 +1,33 @@
+# 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 Makefile.sources
+include $(top_srcdir)/src/gallium/Automake.inc
+
+AM_CFLAGS = \
+	-I$(top_srcdir)/src/gallium/drivers \
+	-I$(top_srcdir)/src/gallium/winsys \
+	$(GALLIUM_WINSYS_CFLAGS)
+
+noinst_LTLIBRARIES = libimxdrm.la
+
+libimxdrm_la_SOURCES = $(C_SOURCES)
diff --git a/src/gallium/winsys/imx/drm/Makefile.sources b/src/gallium/winsys/imx/drm/Makefile.sources
new file mode 100644
index 00000000000..677ac79126d
--- /dev/null
+++ b/src/gallium/winsys/imx/drm/Makefile.sources
@@ -0,0 +1,3 @@
+C_SOURCES := \
+   imx_drm_public.h \
+   imx_drm_winsys.c
diff --git a/src/gallium/winsys/imx/drm/imx_drm_public.h b/src/gallium/winsys/imx/drm/imx_drm_public.h
new file mode 100644
index 00000000000..e213f6c6bc3
--- /dev/null
+++ b/src/gallium/winsys/imx/drm/imx_drm_public.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2016 Christian Gmeiner <[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:
+ *    Christian Gmeiner <[email protected]>
+ */
+
+#ifndef __IMX_DRM_PUBLIC_H__
+#define __IMX_DRM_PUBLIC_H__
+
+struct pipe_screen;
+
+struct pipe_screen *imx_drm_screen_create(int fd);
+
+#endif /* __IMX_DRM_PUBLIC_H__ */
diff --git a/src/gallium/winsys/imx/drm/imx_drm_winsys.c b/src/gallium/winsys/imx/drm/imx_drm_winsys.c
new file mode 100644
index 00000000000..cd72610b955
--- /dev/null
+++ b/src/gallium/winsys/imx/drm/imx_drm_winsys.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2016 Christian Gmeiner <[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:
+ *    Christian Gmeiner <[email protected]>
+ */
+
+#include "imx_drm_public.h"
+#include "etnaviv/drm/etnaviv_drm_public.h"
+#include "renderonly/renderonly.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+
+struct pipe_screen *imx_drm_screen_create(int fd)
+{
+   struct renderonly ro = {
+      .create_for_resource = renderonly_create_kms_dumb_buffer_for_resource,
+      .kms_fd = fd,
+      .gpu_fd = open("/dev/dri/renderD128", O_RDWR | O_CLOEXEC)
+   };
+
+   if (ro.gpu_fd < 0)
+      return NULL;
+
+   struct pipe_screen *screen = etna_drm_screen_create_renderonly(&ro);
+   if (!screen)
+      close(ro.gpu_fd);
+
+   return screen;
+}