panfrost: Initial stub for Panfrost driver

This patch adds an initial stub for the Gallium driver, containing
simple screen functions and the majority of the driver headers but no
actual functionality. It further adds the winsys glue for linking in
this stub driver via kmsro on Rockchip/Amlogic boards.

Signed-off-by: Alyssa Rosenzweig <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
Acked-by: Rob Clark <[email protected]>
Acked-by: Eric Anholt <[email protected]>
Acked-by: Emil Velikov <[email protected]>

8 files changed, 204 insertions, 0 deletions

diff --git a/src/gallium/winsys/kmsro/drm/kmsro_drm_winsys.c b/src/gallium/winsys/kmsro/drm/kmsro_drm_winsys.c
index 36d4e412486..7752474f8aa 100644
--- a/src/gallium/winsys/kmsro/drm/kmsro_drm_winsys.c
+++ b/src/gallium/winsys/kmsro/drm/kmsro_drm_winsys.c
@@ -29,6 +29,7 @@
 #include "vc4/drm/vc4_drm_public.h"
 #include "etnaviv/drm/etnaviv_drm_public.h"
 #include "freedreno/drm/freedreno_drm_public.h"
+#include "panfrost/drm/panfrost_drm_public.h"
 #include "xf86drm.h"
 
 #include "pipe/p_screen.h"
@@ -82,5 +83,29 @@ struct pipe_screen *kmsro_drm_screen_create(int fd)
    }
 #endif
 
+#if defined(GALLIUM_PANFROST)
+   ro.gpu_fd = drmOpenWithType("panfrost", NULL, DRM_NODE_RENDER);
+
+   bool is_drm = true;
+   if (ro.gpu_fd < 0) {
+      /* For compatibility with legacy kernels, fallback on the non-DRM
+       * interface */
+
+      ro.gpu_fd = open("/dev/mali0", O_RDWR | O_CLOEXEC);
+      is_drm = false;
+   }
+
+   if (ro.gpu_fd >= 0) {
+      ro.create_for_resource = renderonly_create_kms_dumb_buffer_for_resource,
+      screen = panfrost_drm_screen_create_renderonly(&ro, is_drm);
+      if (!screen)
+         close(ro.gpu_fd);
+
+      return screen;
+   }
+#endif
+
+
+
    return screen;
 }
diff --git a/src/gallium/winsys/kmsro/drm/meson.build b/src/gallium/winsys/kmsro/drm/meson.build
index 5ea53dd44bf..51246b68e34 100644
--- a/src/gallium/winsys/kmsro/drm/meson.build
+++ b/src/gallium/winsys/kmsro/drm/meson.build
@@ -28,6 +28,9 @@ endif
 if with_gallium_freedreno
   kmsro_c_args += '-DGALLIUM_FREEDRENO'
 endif
+if with_gallium_panfrost
+  kmsro_c_args += '-DGALLIUM_PANFROST'
+endif
 
 libkmsrowinsys = static_library(
   'kmsrowinsys',
diff --git a/src/gallium/winsys/panfrost/drm/Android.mk b/src/gallium/winsys/panfrost/drm/Android.mk
new file mode 100644
index 00000000000..5f286856b5a
--- /dev/null
+++ b/src/gallium/winsys/panfrost/drm/Android.mk
@@ -0,0 +1,33 @@
+# Copyright (C) 2014 Emil Velikov <[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 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.
+
+LOCAL_PATH := $(call my-dir)
+
+# get C_SOURCES
+include $(LOCAL_PATH)/Makefile.sources
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(C_SOURCES)
+
+LOCAL_MODULE := libmesa_winsys_panfrost
+
+include $(GALLIUM_COMMON_MK)
+include $(BUILD_STATIC_LIBRARY)
diff --git a/src/gallium/winsys/panfrost/drm/Makefile.am b/src/gallium/winsys/panfrost/drm/Makefile.am
new file mode 100644
index 00000000000..7a836288b02
--- /dev/null
+++ b/src/gallium/winsys/panfrost/drm/Makefile.am
@@ -0,0 +1,33 @@
+# Copyright © 2014 Broadco
+#
+# 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 \
+	$(GALLIUM_WINSYS_CFLAGS)
+
+noinst_LTLIBRARIES = libpanfrostdrm.la
+
+libpanfrostdrm_la_SOURCES = $(C_SOURCES)
+
+EXTRA_DIST = meson.build
diff --git a/src/gallium/winsys/panfrost/drm/Makefile.sources b/src/gallium/winsys/panfrost/drm/Makefile.sources
new file mode 100644
index 00000000000..24a1073097c
--- /dev/null
+++ b/src/gallium/winsys/panfrost/drm/Makefile.sources
@@ -0,0 +1,3 @@
+C_SOURCES := \
+	panfrost_drm_public.h \
+	panfrost_drm_winsys.c
diff --git a/src/gallium/winsys/panfrost/drm/meson.build b/src/gallium/winsys/panfrost/drm/meson.build
new file mode 100644
index 00000000000..d19ce2ddb8b
--- /dev/null
+++ b/src/gallium/winsys/panfrost/drm/meson.build
@@ -0,0 +1,29 @@
+# Copyright © 2017 Broadcom
+#
+# 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 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.
+
+libpanfrostwinsys = static_library(
+  'panfrostwinsys',
+  files('panfrost_drm_winsys.c'),
+  include_directories : [
+    inc_src, inc_include,
+    inc_gallium, inc_gallium_aux, inc_gallium_drivers,
+  ],
+  c_args : [c_vis_args],
+)
diff --git a/src/gallium/winsys/panfrost/drm/panfrost_drm_public.h b/src/gallium/winsys/panfrost/drm/panfrost_drm_public.h
new file mode 100644
index 00000000000..4709c429b96
--- /dev/null
+++ b/src/gallium/winsys/panfrost/drm/panfrost_drm_public.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2014 Broadcom
+ * Copyright © 208 Alyssa Rosenzweig
+ *
+ * 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.
+ */
+
+#ifndef __PAN_DRM_PUBLIC_H__
+#define __PAN_DRM_PUBLIC_H__
+
+#include <stdbool.h>
+
+struct pipe_screen;
+struct renderonly;
+
+struct pipe_screen *panfrost_drm_screen_create(int drmFD);
+struct pipe_screen *panfrost_drm_screen_create_renderonly(struct renderonly *ro, bool is_drm);
+
+#endif /* __PAN_DRM_PUBLIC_H__ */
diff --git a/src/gallium/winsys/panfrost/drm/panfrost_drm_winsys.c b/src/gallium/winsys/panfrost/drm/panfrost_drm_winsys.c
new file mode 100644
index 00000000000..7d08743e23c
--- /dev/null
+++ b/src/gallium/winsys/panfrost/drm/panfrost_drm_winsys.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright © 2014 Broadcom
+ * Copyright © 208 Alyssa Rosenzweig
+ *
+ * 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 <unistd.h>
+#include <fcntl.h>
+
+#include "renderonly/renderonly.h"
+#include "panfrost_drm_public.h"
+#include "panfrost/pan_public.h"
+
+struct pipe_screen *
+panfrost_drm_screen_create(int fd)
+{
+   return panfrost_create_screen(fcntl(fd, F_DUPFD_CLOEXEC, 3), NULL, true);
+}
+
+struct pipe_screen *
+panfrost_drm_screen_create_renderonly(struct renderonly *ro, bool is_drm)
+{
+   return panfrost_create_screen(fcntl(ro->gpu_fd, F_DUPFD_CLOEXEC, 3), ro, is_drm);
+}