[RFC libdrm 2/6] libdrm: Add NVIDIA Tegra support
Thierry Reding
thierry.reding at gmail.com
Wed Feb 19 08:04:49 PST 2014
From: Thierry Reding <thierry.reding at avionic-design.de>
Add the libdrm_tegra helper library to encapsulate Tegra-specific
interfaces to the DRM.
Furthermore, Tegra is added to the list of supported chips in the
modetest and vbltest programs.
Signed-off-by: Thierry Reding <thierry.reding at avionic-design.de>
Signed-off-by: Erik Faye-Lund <kusmabite at gmail.com>
Signed-off-by: Thierry Reding <treding at nvidia.com>
---
Makefile.am | 6 +-
configure.ac | 15 ++-
include/drm/Makefile.am | 1 +
include/drm/tegra_drm.h | 157 ++++++++++++++++++++++++++++
tegra/Makefile.am | 20 ++++
tegra/libdrm_tegra.pc.in | 11 ++
tegra/private.h | 58 +++++++++++
tegra/tegra.c | 253 ++++++++++++++++++++++++++++++++++++++++++++++
tegra/tegra.h | 47 +++++++++
tests/modetest/modetest.c | 2 +-
tests/vbltest/vbltest.c | 2 +-
11 files changed, 568 insertions(+), 4 deletions(-)
create mode 100644 include/drm/tegra_drm.h
create mode 100644 tegra/Makefile.am
create mode 100644 tegra/libdrm_tegra.pc.in
create mode 100644 tegra/private.h
create mode 100644 tegra/tegra.c
create mode 100644 tegra/tegra.h
diff --git a/Makefile.am b/Makefile.am
index 826c30d0c0d9..14c402dce74f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -51,7 +51,11 @@ if HAVE_FREEDRENO
FREEDRENO_SUBDIR = freedreno
endif
-SUBDIRS = . $(LIBKMS_SUBDIR) $(INTEL_SUBDIR) $(NOUVEAU_SUBDIR) $(RADEON_SUBDIR) $(OMAP_SUBDIR) $(EXYNOS_SUBDIR) $(FREEDRENO_SUBDIR) tests include man
+if HAVE_TEGRA
+TEGRA_SUBDIR = tegra
+endif
+
+SUBDIRS = . $(LIBKMS_SUBDIR) $(INTEL_SUBDIR) $(NOUVEAU_SUBDIR) $(RADEON_SUBDIR) $(OMAP_SUBDIR) $(EXYNOS_SUBDIR) $(FREEDRENO_SUBDIR) $(TEGRA_SUBDIR) tests include man
libdrm_la_LTLIBRARIES = libdrm.la
libdrm_ladir = $(libdir)
diff --git a/configure.ac b/configure.ac
index 3f4164238494..752a70592933 100644
--- a/configure.ac
+++ b/configure.ac
@@ -98,6 +98,11 @@ AC_ARG_ENABLE(freedreno-experimental-api,
[Enable support for freedreno's experimental API (default: disabled)]),
[FREEDRENO=$enableval], [FREEDRENO=no])
+AC_ARG_ENABLE(tegra-experimental-api,
+ AS_HELP_STRING([--enable-tegra-experimental-api],
+ [Enable support for Tegra's experimental API (default: disabled)]),
+ [TEGRA=$enableval], [TEGRA=no])
+
AC_ARG_ENABLE(install-test-programs,
AS_HELP_STRING([--enable-install-test-programs],
[Install test programs (default: no)]),
@@ -218,6 +223,11 @@ if test "x$FREEDRENO" = xyes; then
AC_DEFINE(HAVE_FREEDRENO, 1, [Have freedreno support])
fi
+AM_CONDITIONAL(HAVE_TEGRA, [test "x$TEGRA" = xyes])
+if test "x$TEGRA" = xyes; then
+ AC_DEFINE(HAVE_TEGRA, 1, [Have Tegra support])
+fi
+
AM_CONDITIONAL(HAVE_INSTALL_TESTS, [test "x$INSTALL_TESTS" = xyes])
if test "x$INSTALL_TESTS" = xyes; then
AC_DEFINE(HAVE_INSTALL_TESTS, 1, [Install test programs])
@@ -269,7 +279,7 @@ else
fi
AM_CONDITIONAL([HAVE_MANPAGES_STYLESHEET], [test "x$HAVE_MANPAGES_STYLESHEET" = "xyes"])
-if test "x$INTEL" != "xno" -o "x$RADEON" != "xno" -o "x$NOUVEAU" != "xno" -o "x$OMAP" != "xno" -o "x$FREEDRENO" != "xno"; then
+if test "x$INTEL" != "xno" -o "x$RADEON" != "xno" -o "x$NOUVEAU" != "xno" -o "x$OMAP" != "xno" -o "x$FREEDRENO" != "xno" -o "x$TEGRA" != "xno"; then
# Check for atomic intrinsics
AC_CACHE_CHECK([for native atomic primitives], drm_cv_atomic_primitives,
[
@@ -402,6 +412,8 @@ AC_CONFIG_FILES([
exynos/libdrm_exynos.pc
freedreno/Makefile
freedreno/libdrm_freedreno.pc
+ tegra/Makefile
+ tegra/libdrm_tegra.pc
tests/Makefile
tests/modeprint/Makefile
tests/modetest/Makefile
@@ -426,4 +438,5 @@ echo " Nouveau API $NOUVEAU"
echo " OMAP API $OMAP"
echo " EXYNOS API $EXYNOS"
echo " Freedreno API $FREEDRENO"
+echo " Tegra API $TEGRA"
echo ""
diff --git a/include/drm/Makefile.am b/include/drm/Makefile.am
index 2bc34d2ffd9f..f591abc45152 100644
--- a/include/drm/Makefile.am
+++ b/include/drm/Makefile.am
@@ -35,6 +35,7 @@ klibdrminclude_HEADERS = \
radeon_drm.h \
savage_drm.h \
sis_drm.h \
+ tegra_drm.h \
via_drm.h \
mach64_drm.h \
qxl_drm.h
diff --git a/include/drm/tegra_drm.h b/include/drm/tegra_drm.h
new file mode 100644
index 000000000000..956ed8aa9d98
--- /dev/null
+++ b/include/drm/tegra_drm.h
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2012-2013, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 _UAPI_TEGRA_DRM_H_
+#define _UAPI_TEGRA_DRM_H_
+
+#include <drm/drm.h>
+
+#define DRM_TEGRA_GEM_CREATE_TILED (1 << 0)
+#define DRM_TEGRA_GEM_CREATE_BOTTOM_UP (1 << 1)
+
+struct drm_tegra_gem_create {
+ __u64 size;
+ __u32 flags;
+ __u32 handle;
+};
+
+struct drm_tegra_gem_mmap {
+ __u32 handle;
+ __u32 offset;
+};
+
+struct drm_tegra_syncpt_read {
+ __u32 id;
+ __u32 value;
+};
+
+struct drm_tegra_syncpt_incr {
+ __u32 id;
+ __u32 pad;
+};
+
+struct drm_tegra_syncpt_wait {
+ __u32 id;
+ __u32 thresh;
+ __u32 timeout;
+ __u32 value;
+};
+
+#define DRM_TEGRA_NO_TIMEOUT (0xffffffff)
+
+struct drm_tegra_open_channel {
+ __u32 client;
+ __u32 pad;
+ __u64 context;
+};
+
+struct drm_tegra_close_channel {
+ __u64 context;
+};
+
+struct drm_tegra_get_syncpt {
+ __u64 context;
+ __u32 index;
+ __u32 id;
+};
+
+struct drm_tegra_get_syncpt_base {
+ __u64 context;
+ __u32 syncpt;
+ __u32 id;
+};
+
+struct drm_tegra_syncpt {
+ __u32 id;
+ __u32 incrs;
+};
+
+struct drm_tegra_cmdbuf {
+ __u32 handle;
+ __u32 offset;
+ __u32 words;
+ __u32 pad;
+};
+
+struct drm_tegra_reloc {
+ struct {
+ __u32 handle;
+ __u32 offset;
+ } cmdbuf;
+ struct {
+ __u32 handle;
+ __u32 offset;
+ } target;
+ __u32 shift;
+ __u32 pad;
+};
+
+struct drm_tegra_waitchk {
+ __u32 handle;
+ __u32 offset;
+ __u32 syncpt;
+ __u32 thresh;
+};
+
+struct drm_tegra_submit {
+ __u64 context;
+ __u32 num_syncpts;
+ __u32 num_cmdbufs;
+ __u32 num_relocs;
+ __u32 num_waitchks;
+ __u32 waitchk_mask;
+ __u32 timeout;
+ __u32 pad;
+ __u64 syncpts;
+ __u64 cmdbufs;
+ __u64 relocs;
+ __u64 waitchks;
+ __u32 fence; /* Return value */
+
+ __u32 reserved[5]; /* future expansion */
+};
+
+#define DRM_TEGRA_GEM_CREATE 0x00
+#define DRM_TEGRA_GEM_MMAP 0x01
+#define DRM_TEGRA_SYNCPT_READ 0x02
+#define DRM_TEGRA_SYNCPT_INCR 0x03
+#define DRM_TEGRA_SYNCPT_WAIT 0x04
+#define DRM_TEGRA_OPEN_CHANNEL 0x05
+#define DRM_TEGRA_CLOSE_CHANNEL 0x06
+#define DRM_TEGRA_GET_SYNCPT 0x07
+#define DRM_TEGRA_SUBMIT 0x08
+#define DRM_TEGRA_GET_SYNCPT_BASE 0x09
+
+#define DRM_IOCTL_TEGRA_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_CREATE, struct drm_tegra_gem_create)
+#define DRM_IOCTL_TEGRA_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_MMAP, struct drm_tegra_gem_mmap)
+#define DRM_IOCTL_TEGRA_SYNCPT_READ DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SYNCPT_READ, struct drm_tegra_syncpt_read)
+#define DRM_IOCTL_TEGRA_SYNCPT_INCR DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SYNCPT_INCR, struct drm_tegra_syncpt_incr)
+#define DRM_IOCTL_TEGRA_SYNCPT_WAIT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SYNCPT_WAIT, struct drm_tegra_syncpt_wait)
+#define DRM_IOCTL_TEGRA_OPEN_CHANNEL DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_OPEN_CHANNEL, struct drm_tegra_open_channel)
+#define DRM_IOCTL_TEGRA_CLOSE_CHANNEL DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_CLOSE_CHANNEL, struct drm_tegra_open_channel)
+#define DRM_IOCTL_TEGRA_GET_SYNCPT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GET_SYNCPT, struct drm_tegra_get_syncpt)
+#define DRM_IOCTL_TEGRA_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SUBMIT, struct drm_tegra_submit)
+#define DRM_IOCTL_TEGRA_GET_SYNCPT_BASE DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GET_SYNCPT_BASE, struct drm_tegra_get_syncpt_base)
+
+#endif
diff --git a/tegra/Makefile.am b/tegra/Makefile.am
new file mode 100644
index 000000000000..1b83145b120d
--- /dev/null
+++ b/tegra/Makefile.am
@@ -0,0 +1,20 @@
+AM_CPPFLAGS = \
+ -I$(top_srcdir) \
+ -I$(top_srcdir)/include/drm
+
+AM_CFLAGS = \
+ $(VISIBILITY_CFLAGS)
+
+libdrm_tegra_ladir = $(libdir)
+libdrm_tegra_la_LTLIBRARIES = libdrm_tegra.la
+libdrm_tegra_la_LDFLAGS = -version-number 0:0:0 -no-undefined
+libdrm_tegra_la_LIBADD = ../libdrm.la @PTHREADSTUBS_LIBS@
+
+libdrm_tegra_la_SOURCES = \
+ tegra.c
+
+libdrm_tegraincludedir = ${includedir}/libdrm
+libdrm_tegrainclude_HEADERS = tegra.h
+
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = libdrm_tegra.pc
diff --git a/tegra/libdrm_tegra.pc.in b/tegra/libdrm_tegra.pc.in
new file mode 100644
index 000000000000..2e06f49c6fba
--- /dev/null
+++ b/tegra/libdrm_tegra.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libdrm_tegra
+Description: Userspace interface to Tegra kernel DRM services
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -ldrm_tegra
+Cflags: -I${includedir} -I${includedir}/libdrm
+Requires.private: libdrm
diff --git a/tegra/private.h b/tegra/private.h
new file mode 100644
index 000000000000..ec69295c2cf8
--- /dev/null
+++ b/tegra/private.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2012, 2013 Thierry Reding
+ * Copyright © 2013 Erik Faye-Lund
+ * Copyright © 2014 NVIDIA 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 __DRM_TEGRA_PRIVATE_H__
+#define __DRM_TEGRA_PRIVATE_H__ 1
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <xf86atomic.h>
+
+#include "tegra.h"
+
+#if defined(HAVE_VISIBILITY)
+# define drm_private __attribute__((visibility("hidden")))
+# define drm_public __attribute__((visibility("default")))
+#else
+# define drm_private
+# define drm_public
+#endif
+
+struct drm_tegra {
+ bool close;
+ int fd;
+};
+
+struct drm_tegra_bo {
+ struct drm_tegra *drm;
+ uint32_t handle;
+ uint32_t offset;
+ uint32_t flags;
+ uint32_t size;
+ atomic_t ref;
+ void *map;
+};
+
+#endif /* __DRM_TEGRA_PRIVATE_H__ */
diff --git a/tegra/tegra.c b/tegra/tegra.c
new file mode 100644
index 000000000000..8c48ae7c30a1
--- /dev/null
+++ b/tegra/tegra.c
@@ -0,0 +1,253 @@
+/*
+ * Copyright © 2012, 2013 Thierry Reding
+ * Copyright © 2013 Erik Faye-Lund
+ * Copyright © 2014 NVIDIA 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+
+#include <sys/mman.h>
+
+#include <xf86drm.h>
+
+#include <tegra_drm.h>
+
+#include "private.h"
+
+static inline struct tegra_bo *tegra_bo(struct drm_tegra_bo *bo)
+{
+ return (struct tegra_bo *)bo;
+}
+
+static void drm_tegra_bo_free(struct drm_tegra_bo *bo)
+{
+ struct drm_tegra *drm = bo->drm;
+ struct drm_gem_close args;
+
+ if (bo->map)
+ munmap(bo->map, bo->size);
+
+ memset(&args, 0, sizeof(args));
+ args.handle = bo->handle;
+
+ drmIoctl(drm->fd, DRM_IOCTL_GEM_CLOSE, &args);
+
+ free(bo);
+}
+
+static int drm_tegra_wrap(struct drm_tegra **drmp, int fd, bool close)
+{
+ struct drm_tegra *drm;
+ int err;
+
+ if (fd < 0 || !drmp)
+ return -EINVAL;
+
+ drm = calloc(1, sizeof(*drm));
+ if (!drm)
+ return -ENOMEM;
+
+ drm->close = close;
+ drm->fd = fd;
+
+ *drmp = drm;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_new(struct drm_tegra **drmp, int fd)
+{
+ bool supported = false;
+ drmVersionPtr version;
+
+ version = drmGetVersion(fd);
+ if (!version)
+ return -ENOMEM;
+
+ if (!strncmp(version->name, "tegra", version->name_len))
+ supported = true;
+
+ drmFreeVersion(version);
+
+ if (!supported)
+ return -ENOTSUP;
+
+ return drm_tegra_wrap(drmp, fd, false);
+}
+
+drm_public
+void drm_tegra_close(struct drm_tegra *drm)
+{
+ if (!drm)
+ return;
+
+ if (drm->close)
+ close(drm->fd);
+
+ free(drm);
+}
+
+drm_public
+int drm_tegra_bo_new(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t flags, uint32_t size)
+{
+ struct drm_tegra_gem_create args;
+ struct drm_tegra_bo *bo;
+ int err;
+
+ if (!drm || size == 0 || !bop)
+ return -EINVAL;
+
+ bo = calloc(1, sizeof(*bo));
+ if (!bo)
+ return -ENOMEM;
+
+ atomic_set(&bo->ref, 1);
+ bo->flags = flags;
+ bo->size = size;
+ bo->drm = drm;
+
+ memset(&args, 0, sizeof(args));
+ args.flags = flags;
+ args.size = size;
+
+ err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_CREATE, &args,
+ sizeof(args));
+ if (err < 0) {
+ err = -errno;
+ free(bo);
+ return err;
+ }
+
+ bo->handle = args.handle;
+
+ *bop = bo;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_bo_wrap(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t handle, uint32_t flags, size_t size)
+{
+ struct drm_tegra_bo *bo;
+
+ if (!drm || !bop)
+ return -EINVAL;
+
+ bo = calloc(1, sizeof(*bo));
+ if (!bo)
+ return -ENOMEM;
+
+ atomic_set(&bo->ref, 1);
+ bo->handle = handle;
+ bo->flags = flags;
+ bo->size = size;
+ bo->drm = drm;
+
+ *bop = bo;
+
+ return 0;
+}
+
+drm_public
+struct drm_tegra_bo *drm_tegra_bo_get(struct drm_tegra_bo *bo)
+{
+ if (bo)
+ atomic_inc(&bo->ref);
+
+ return bo;
+}
+
+drm_public
+void drm_tegra_bo_put(struct drm_tegra_bo *bo)
+{
+ if (bo && atomic_dec_and_test(&bo->ref))
+ drm_tegra_bo_free(bo);
+}
+
+drm_public
+int drm_tegra_bo_get_handle(struct drm_tegra_bo *bo, uint32_t *handle)
+{
+ if (!bo || !handle)
+ return -EINVAL;
+
+ *handle = bo->handle;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_bo_map(struct drm_tegra_bo *bo, void **ptr)
+{
+ struct drm_tegra *drm = bo->drm;
+
+ if (!bo->map) {
+ struct drm_tegra_gem_mmap args;
+ int err;
+
+ memset(&args, 0, sizeof(args));
+ args.handle = bo->handle;
+
+ err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_MMAP, &args,
+ sizeof(args));
+ if (err < 0)
+ return -errno;
+
+ bo->offset = args.offset;
+
+ bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ drm->fd, bo->offset);
+ if (bo->map == MAP_FAILED) {
+ bo->map = NULL;
+ return -errno;
+ }
+ }
+
+ if (ptr)
+ *ptr = bo->map;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_bo_unmap(struct drm_tegra_bo *bo)
+{
+ if (!bo)
+ return -EINVAL;
+
+ if (!bo->map)
+ return 0;
+
+ if (munmap(bo->map, bo->size))
+ return -errno;
+
+ bo->map = NULL;
+
+ return 0;
+}
diff --git a/tegra/tegra.h b/tegra/tegra.h
new file mode 100644
index 000000000000..0731cb3bd4dc
--- /dev/null
+++ b/tegra/tegra.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright © 2012, 2013 Thierry Reding
+ * Copyright © 2013 Erik Faye-Lund
+ * Copyright © 2014 NVIDIA 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 __DRM_TEGRA_H__
+#define __DRM_TEGRA_H__ 1
+
+#include <stdint.h>
+#include <stdlib.h>
+
+struct drm_tegra_bo;
+struct drm_tegra;
+
+int drm_tegra_new(struct drm_tegra **drmp, int fd);
+void drm_tegra_close(struct drm_tegra *drm);
+
+int drm_tegra_bo_new(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t flags, uint32_t size);
+int drm_tegra_bo_wrap(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t handle, uint32_t flags, uint32_t size);
+struct drm_tegra_bo *drm_tegra_bo_get(struct drm_tegra_bo *bo);
+void drm_tegra_bo_put(struct drm_tegra_bo *bo);
+int drm_tegra_bo_get_handle(struct drm_tegra_bo *bo, uint32_t *handle);
+int drm_tegra_bo_map(struct drm_tegra_bo *bo, void **ptr);
+int drm_tegra_bo_unmap(struct drm_tegra_bo *bo);
+
+#endif /* __DRM_TEGRA_H__ */
diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
index bc9c9988dec7..4212963f8ff0 100644
--- a/tests/modetest/modetest.c
+++ b/tests/modetest/modetest.c
@@ -1386,7 +1386,7 @@ int main(int argc, char **argv)
int encoders = 0, connectors = 0, crtcs = 0, planes = 0, framebuffers = 0;
int drop_master = 0;
int test_vsync = 0;
- const char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "omapdrm", "exynos", "tilcdc", "msm" };
+ const char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "omapdrm", "exynos", "tilcdc", "msm", "tegra" };
char *device = NULL;
char *module = NULL;
unsigned int i;
diff --git a/tests/vbltest/vbltest.c b/tests/vbltest/vbltest.c
index 2a09d28ed00a..e4b200bf0c3c 100644
--- a/tests/vbltest/vbltest.c
+++ b/tests/vbltest/vbltest.c
@@ -103,7 +103,7 @@ static void usage(char *name)
int main(int argc, char **argv)
{
int i, c, fd, ret;
- char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "exynos", "omapdrm", "tilcdc", "msm" };
+ char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "exynos", "omapdrm", "tilcdc", "msm", "tegra" };
drmVBlank vbl;
drmEventContext evctx;
struct vbl_info handler_info;
--
1.8.4.2
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