Adding upstream version 2.4.120.upstream/2.4.120

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

11 files changed, 1374 insertions, 0 deletions

diff --git a/tegra/.gitignore b/tegra/.gitignore
new file mode 100644
index 0000000..74cfe47
--- /dev/null
+++ b/tegra/.gitignore
@@ -0,0 +1 @@
+libdrm_tegra.pc
diff --git a/tegra/channel.c b/tegra/channel.c
new file mode 100644
index 0000000..3913620
--- /dev/null
+++ b/tegra/channel.c
@@ -0,0 +1,195 @@
+/*
+ * Copyright © 2012, 2013 Thierry Reding
+ * Copyright © 2013 Erik Faye-Lund
+ * Copyright © 2014-2021 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 <string.h>
+
+#include <sys/ioctl.h>
+
+#include "private.h"
+
+drm_public int
+drm_tegra_channel_open(struct drm_tegra *drm,
+                       enum drm_tegra_class client,
+                       struct drm_tegra_channel **channelp)
+{
+    struct drm_tegra_channel_open args;
+    struct drm_tegra_channel *channel;
+    enum host1x_class class;
+    int err;
+
+    switch (client) {
+    case DRM_TEGRA_HOST1X:
+        class = HOST1X_CLASS_HOST1X;
+        break;
+
+    case DRM_TEGRA_GR2D:
+        class = HOST1X_CLASS_GR2D;
+        break;
+
+    case DRM_TEGRA_GR3D:
+        class = HOST1X_CLASS_GR3D;
+        break;
+
+    case DRM_TEGRA_VIC:
+        class = HOST1X_CLASS_VIC;
+        break;
+
+    default:
+        return -EINVAL;
+    }
+
+    channel = calloc(1, sizeof(*channel));
+    if (!channel)
+        return -ENOMEM;
+
+    channel->drm = drm;
+
+    memset(&args, 0, sizeof(args));
+    args.host1x_class = class;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_CHANNEL_OPEN, &args);
+    if (err < 0) {
+        free(channel);
+        return -errno;
+    }
+
+    channel->context = args.context;
+    channel->version = args.version;
+    channel->capabilities = args.capabilities;
+    channel->class = class;
+
+    switch (channel->version) {
+    case 0x20:
+    case 0x30:
+    case 0x35:
+    case 0x40:
+    case 0x21:
+        channel->cond_shift = 8;
+        break;
+
+    case 0x18:
+    case 0x19:
+        channel->cond_shift = 10;
+        break;
+
+    default:
+        return -ENOTSUP;
+    }
+
+    *channelp = channel;
+
+    return 0;
+}
+
+drm_public int drm_tegra_channel_close(struct drm_tegra_channel *channel)
+{
+    struct drm_tegra_channel_close args;
+    struct drm_tegra *drm;
+    int err;
+
+    if (!channel)
+        return -EINVAL;
+
+    drm = channel->drm;
+
+    memset(&args, 0, sizeof(args));
+    args.context = channel->context;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_CHANNEL_CLOSE, &args);
+    if (err < 0)
+        return -errno;
+
+    free(channel);
+
+    return 0;
+}
+
+drm_public unsigned int
+drm_tegra_channel_get_version(struct drm_tegra_channel *channel)
+{
+    return channel->version;
+}
+
+drm_public int
+drm_tegra_channel_map(struct drm_tegra_channel *channel,
+                      struct drm_tegra_bo *bo, uint32_t flags,
+                      struct drm_tegra_mapping **mapp)
+{
+    struct drm_tegra *drm = channel->drm;
+    struct drm_tegra_channel_map args;
+    struct drm_tegra_mapping *map;
+    int err;
+
+    if (!drm || !bo || !mapp)
+        return -EINVAL;
+
+    map = calloc(1, sizeof(*map));
+    if (!map)
+        return -ENOMEM;
+
+    memset(&args, 0, sizeof(args));
+    args.context = channel->context;
+    args.handle = bo->handle;
+    args.flags = flags;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_CHANNEL_MAP, &args);
+    if (err < 0) {
+        free(map);
+        return -errno;
+    }
+
+    map->channel = channel;
+    map->id = args.mapping;
+    *mapp = map;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_channel_unmap(struct drm_tegra_mapping *map)
+{
+    struct drm_tegra_channel *channel = map->channel;
+    struct drm_tegra *drm = channel->drm;
+    struct drm_tegra_channel_unmap args;
+    int err;
+
+    if (!channel || !map)
+        return -EINVAL;
+
+    memset(&args, 0, sizeof(args));
+    args.context = channel->context;
+    args.mapping = map->id;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_CHANNEL_UNMAP, &args);
+    if (err < 0)
+        return -errno;
+
+    free(map);
+    return 0;
+}
diff --git a/tegra/job.c b/tegra/job.c
new file mode 100644
index 0000000..75a344f
--- /dev/null
+++ b/tegra/job.c
@@ -0,0 +1,187 @@
+/*
+ * 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 <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <sys/ioctl.h>
+#include <sys/poll.h>
+
+#include "private.h"
+
+struct drm_tegra_submit_cmd *
+drm_tegra_job_add_command(struct drm_tegra_job *job, uint32_t type,
+                          uint32_t flags)
+{
+    struct drm_tegra_submit_cmd *commands, *command;
+    size_t size;
+
+    size = (job->num_commands + 1) * sizeof(*commands);
+
+    commands = realloc(job->commands, size);
+    if (!commands)
+        return NULL;
+
+    command = &commands[job->num_commands];
+    memset(command, 0, sizeof(*command));
+    command->type = type;
+    command->flags = flags;
+
+    job->commands = commands;
+    job->num_commands++;
+
+    return command;
+}
+
+drm_public int
+drm_tegra_job_new(struct drm_tegra_channel *channel,
+                  struct drm_tegra_job **jobp)
+{
+    struct drm_tegra_job *job;
+
+    job = calloc(1, sizeof(*job));
+    if (!job)
+        return -ENOMEM;
+
+    job->page_size = sysconf(_SC_PAGESIZE);
+    job->channel = channel;
+
+    *jobp = job;
+
+    return 0;
+}
+
+drm_public int drm_tegra_job_free(struct drm_tegra_job *job)
+{
+    if (!job)
+        return -EINVAL;
+
+    if (job->pushbuf)
+        drm_tegra_pushbuf_free(job->pushbuf);
+
+    if (job->commands)
+        free(job->commands);
+
+    if (job->buffers)
+        free(job->buffers);
+
+    free(job);
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_job_get_pushbuf(struct drm_tegra_job *job,
+                          struct drm_tegra_pushbuf **pushbufp)
+{
+    struct drm_tegra_pushbuf *pushbuf;
+
+    if (!job->pushbuf) {
+        pushbuf = calloc(1, sizeof(*pushbuf));
+        if (!pushbuf)
+            return -ENOMEM;
+
+        pushbuf->job = job;
+
+        pushbuf->start = calloc(1, job->page_size);
+        if (!pushbuf->start) {
+            free(pushbuf);
+            return -ENOMEM;
+        }
+
+        pushbuf->end = pushbuf->start + job->page_size / 4;
+        pushbuf->ptr = pushbuf->start;
+
+        job->pushbuf = pushbuf;
+    }
+
+    *pushbufp = job->pushbuf;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_job_submit(struct drm_tegra_job *job, struct drm_tegra_fence *fence)
+{
+    struct drm_tegra_channel *channel = job->channel;
+    struct drm_tegra *drm = channel->drm;
+    struct drm_tegra_channel_submit args;
+    int err;
+
+    memset(&args, 0, sizeof(args));
+    args.context = channel->context;
+    args.num_bufs = job->num_buffers;
+    args.num_cmds = job->num_commands;
+    args.gather_data_words = job->pushbuf->ptr - job->pushbuf->start;
+    args.syncpt.id = job->syncpt.id;
+    args.syncpt.increments = job->syncpt.increments;
+
+    args.bufs_ptr = (uintptr_t)job->buffers;
+    args.cmds_ptr = (uintptr_t)job->commands;
+    args.gather_data_ptr = (uintptr_t)job->pushbuf->start;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_CHANNEL_SUBMIT, &args);
+    if (err < 0)
+        return -errno;
+
+    job->syncpt.fence = args.syncpt.value;
+
+    if (fence) {
+        fence->drm = drm;
+        fence->syncpt = job->syncpt.id;
+        fence->value = job->syncpt.fence;
+    }
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_job_wait(struct drm_tegra_job *job, unsigned long timeout)
+{
+    struct drm_tegra_channel *channel = job->channel;
+    struct drm_tegra *drm = channel->drm;
+    struct drm_tegra_syncpoint_wait args;
+    struct timespec ts;
+    int err;
+
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+
+    memset(&args, 0, sizeof(args));
+    args.timeout_ns = ts.tv_sec * 1000000000 + ts.tv_nsec + timeout;
+    args.id = job->syncpt.id;
+    args.threshold = job->syncpt.fence;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_SYNCPOINT_WAIT, &args);
+    if (err < 0)
+        return -errno;
+
+    return 0;
+}
diff --git a/tegra/libdrm_tegra.pc.in b/tegra/libdrm_tegra.pc.in
new file mode 100644
index 0000000..2e06f49
--- /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/meson.build b/tegra/meson.build
new file mode 100644
index 0000000..5325ed7
--- /dev/null
+++ b/tegra/meson.build
@@ -0,0 +1,64 @@
+# Copyright © 2017-2018 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 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.
+
+libdrm_tegra = library(
+  'drm_tegra',
+  [
+    files(
+      'channel.c', 'job.c', 'private.h', 'pushbuf.c', 'syncpt.c', 'tegra.c'
+    ),
+    config_file
+  ],
+  include_directories : [inc_root, inc_drm],
+  link_with : libdrm,
+  dependencies : [dep_threads, dep_atomic_ops],
+  c_args : libdrm_c_args,
+  gnu_symbol_visibility : 'hidden',
+  version : '0.0.0',
+  install : true,
+)
+
+ext_libdrm_tegra = declare_dependency(
+  link_with : [libdrm, libdrm_tegra],
+  include_directories : [inc_drm, include_directories('.')],
+)
+
+if meson.version().version_compare('>= 0.54.0')
+  meson.override_dependency('libdrm_tegra', ext_libdrm_tegra)
+endif
+
+install_headers('tegra.h', subdir : 'libdrm')
+
+pkg.generate(
+  libdrm_tegra,
+  name : 'libdrm_tegra',
+  subdirs : ['.', 'libdrm'],
+  description : 'Userspace interface to Tegra kernel DRM services',
+)
+
+test(
+  'tegra-symbols-check',
+  symbols_check,
+  args : [
+    '--lib', libdrm_tegra,
+    '--symbols-file', files('tegra-symbols.txt'),
+    '--nm', prog_nm.path(),
+  ],
+)
diff --git a/tegra/private.h b/tegra/private.h
new file mode 100644
index 0000000..fc204e8
--- /dev/null
+++ b/tegra/private.h
@@ -0,0 +1,118 @@
+/*
+ * 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 <stddef.h>
+#include <stdint.h>
+
+#include <libdrm_macros.h>
+#include <xf86atomic.h>
+
+#include "tegra_drm.h"
+#include "tegra.h"
+
+#define container_of(ptr, type, member) ({                      \
+        const __typeof__(((type *)0)->member) *__mptr = (ptr);  \
+        (type *)((char *)__mptr - offsetof(type, member));      \
+    })
+
+enum host1x_class {
+    HOST1X_CLASS_HOST1X = 0x01,
+    HOST1X_CLASS_GR2D = 0x51,
+    HOST1X_CLASS_GR2D_SB = 0x52,
+    HOST1X_CLASS_VIC = 0x5d,
+    HOST1X_CLASS_GR3D = 0x60,
+};
+
+struct drm_tegra {
+    bool close;
+    int fd;
+};
+
+struct drm_tegra_bo {
+    struct drm_tegra *drm;
+    uint32_t handle;
+    uint64_t offset;
+    uint32_t flags;
+    uint32_t size;
+    atomic_t ref;
+    void *map;
+};
+
+struct drm_tegra_channel {
+    struct drm_tegra *drm;
+    enum host1x_class class;
+    uint32_t capabilities;
+    unsigned int version;
+    uint64_t context;
+
+    unsigned int cond_shift;
+};
+
+struct drm_tegra_mapping {
+    struct drm_tegra_channel *channel;
+    uint32_t id;
+};
+
+struct drm_tegra_pushbuf {
+    struct drm_tegra_job *job;
+
+    uint32_t *start;
+    uint32_t *end;
+    uint32_t *ptr;
+};
+
+void drm_tegra_pushbuf_free(struct drm_tegra_pushbuf *pushbuf);
+
+struct drm_tegra_job {
+    struct drm_tegra_channel *channel;
+    struct drm_tegra_pushbuf *pushbuf;
+    size_t page_size;
+
+    struct drm_tegra_submit_cmd *commands;
+    unsigned int num_commands;
+
+    struct drm_tegra_submit_buf *buffers;
+    unsigned int num_buffers;
+
+    struct {
+        uint32_t id;
+        uint32_t increments;
+        uint32_t fence;
+    } syncpt;
+};
+
+struct drm_tegra_submit_cmd *
+drm_tegra_job_add_command(struct drm_tegra_job *job, uint32_t type,
+                          uint32_t flags);
+
+struct drm_tegra_syncpoint {
+    struct drm_tegra *drm;
+    uint32_t id;
+};
+
+#endif /* __DRM_TEGRA_PRIVATE_H__ */
diff --git a/tegra/pushbuf.c b/tegra/pushbuf.c
new file mode 100644
index 0000000..0c0212e
--- /dev/null
+++ b/tegra/pushbuf.c
@@ -0,0 +1,184 @@
+/*
+ * 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 <stdlib.h>
+#include <string.h>
+
+#include "util_math.h"
+#include "private.h"
+
+#define HOST1X_OPCODE_NONINCR(offset, count) \
+    ((0x2 << 28) | (((offset) & 0xfff) << 16) | ((count) & 0xffff))
+
+static inline unsigned int
+drm_tegra_pushbuf_get_offset(struct drm_tegra_pushbuf *pushbuf, uint32_t *ptr)
+{
+    return ptr - pushbuf->start;
+}
+
+void drm_tegra_pushbuf_free(struct drm_tegra_pushbuf *pushbuf)
+{
+    if (pushbuf->start)
+        free(pushbuf->start);
+
+    free(pushbuf);
+}
+
+/**
+ * drm_tegra_pushbuf_begin() - prepare push buffer for a series of pushes
+ * @pushbuf: push buffer
+ * @words: maximum number of words in series of pushes to follow
+ */
+drm_public int
+drm_tegra_pushbuf_begin(struct drm_tegra_pushbuf *pushbuf,
+                        unsigned int words, uint32_t **ptrp)
+{
+    struct drm_tegra_job *job = pushbuf->job;
+    unsigned long offset;
+    size_t size;
+    void *ptr;
+
+    if (pushbuf->ptr + words >= pushbuf->end) {
+        words = pushbuf->end - pushbuf->start + words;
+        size = ALIGN(words * 4, job->page_size);
+        offset = pushbuf->ptr - pushbuf->start;
+
+        ptr = realloc(pushbuf->start, size);
+        if (!ptr)
+            return -ENOMEM;
+
+        pushbuf->start = ptr;
+        pushbuf->end = pushbuf->start + size / 4;
+        pushbuf->ptr = pushbuf->start + offset;
+    }
+
+    if (ptrp)
+        *ptrp = pushbuf->ptr;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_pushbuf_end(struct drm_tegra_pushbuf *pushbuf, uint32_t *ptr)
+{
+    struct drm_tegra_submit_cmd *command;
+
+    command = drm_tegra_job_add_command(pushbuf->job,
+                                        DRM_TEGRA_SUBMIT_CMD_GATHER_UPTR,
+                                        0);
+    if (!command)
+        return -ENOMEM;
+
+    command->gather_uptr.words = ptr - pushbuf->start;
+    pushbuf->ptr = ptr;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_pushbuf_wait(struct drm_tegra_pushbuf *pushbuf,
+                       struct drm_tegra_syncpoint *syncpt,
+                       uint32_t value)
+{
+    struct drm_tegra_submit_cmd *command;
+
+    command = drm_tegra_job_add_command(pushbuf->job,
+                                        DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT,
+                                        0);
+    if (!command)
+        return -ENOMEM;
+
+    command->wait_syncpt.id = syncpt->id;
+    command->wait_syncpt.value = value;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_pushbuf_relocate(struct drm_tegra_pushbuf *pushbuf, uint32_t **ptrp,
+                           struct drm_tegra_mapping *target,
+                           unsigned long offset, unsigned int shift,
+                           uint32_t flags)
+{
+    struct drm_tegra_submit_buf *buffers, *buffer;
+    struct drm_tegra_job *job = pushbuf->job;
+    size_t size;
+
+    size = (job->num_buffers + 1) * sizeof(*buffer);
+
+    buffers = realloc(job->buffers, size);
+    if (!buffers)
+        return -ENOMEM;
+
+    buffer = &buffers[job->num_buffers];
+
+    memset(buffer, 0, sizeof(*buffer));
+    buffer->mapping = target->id;
+    buffer->flags = flags;
+    buffer->reloc.target_offset = offset;
+    buffer->reloc.gather_offset_words = drm_tegra_pushbuf_get_offset(pushbuf,
+                                                                     *ptrp);
+    buffer->reloc.shift = shift;
+
+    *(*ptrp)++ = 0xdeadbeef;
+
+    job->buffers = buffers;
+    job->num_buffers++;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_pushbuf_sync(struct drm_tegra_pushbuf *pushbuf,
+                       struct drm_tegra_syncpoint *syncpt,
+                       unsigned int count)
+{
+    struct drm_tegra_job *job = pushbuf->job;
+
+    job->syncpt.increments += count;
+    job->syncpt.id = syncpt->id;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_pushbuf_sync_cond(struct drm_tegra_pushbuf *pushbuf, uint32_t **ptrp,
+                            struct drm_tegra_syncpoint *syncpt,
+                            enum drm_tegra_sync_cond cond)
+{
+    struct drm_tegra_channel *channel = pushbuf->job->channel;
+
+    if (cond >= DRM_TEGRA_SYNC_COND_MAX)
+        return -EINVAL;
+
+    *(*ptrp)++ = HOST1X_OPCODE_NONINCR(0x0, 0x1);
+    *(*ptrp)++ = cond << channel->cond_shift | syncpt->id;
+
+    return drm_tegra_pushbuf_sync(pushbuf, syncpt, 1);
+}
diff --git a/tegra/syncpt.c b/tegra/syncpt.c
new file mode 100644
index 0000000..1601418
--- /dev/null
+++ b/tegra/syncpt.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright © 2021 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 <string.h>
+
+#include <sys/ioctl.h>
+
+#include "private.h"
+
+drm_public int
+drm_tegra_syncpoint_new(struct drm_tegra *drm,
+                        struct drm_tegra_syncpoint **syncptp)
+{
+    struct drm_tegra_syncpoint_allocate args;
+    struct drm_tegra_syncpoint *syncpt;
+    int err;
+
+    syncpt = calloc(1, sizeof(*syncpt));
+    if (!syncpt)
+        return -ENOMEM;
+
+    memset(&args, 0, sizeof(args));
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_SYNCPOINT_ALLOCATE, &args);
+    if (err < 0) {
+        free(syncpt);
+        return -errno;
+    }
+
+    syncpt->drm = drm;
+    syncpt->id = args.id;
+
+    *syncptp = syncpt;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_syncpoint_free(struct drm_tegra_syncpoint *syncpt)
+{
+    struct drm_tegra_syncpoint_free args;
+    struct drm_tegra *drm = syncpt->drm;
+    int err;
+
+    if (!syncpt)
+        return -EINVAL;
+
+    memset(&args, 0, sizeof(args));
+    args.id = syncpt->id;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_SYNCPOINT_FREE, &args);
+    if (err < 0)
+        return -errno;
+
+    free(syncpt);
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_fence_wait(struct drm_tegra_fence *fence, unsigned long timeout)
+{
+    struct drm_tegra_syncpoint_wait args;
+    struct drm_tegra *drm = fence->drm;
+    int err;
+
+    memset(&args, 0, sizeof(args));
+    args.timeout_ns = 0;
+    args.id = fence->syncpt;
+    args.threshold = fence->value;
+
+    err = ioctl(drm->fd, DRM_IOCTL_TEGRA_SYNCPOINT_WAIT, &args);
+    if (err < 0)
+        return -errno;
+
+    return 0;
+}
diff --git a/tegra/tegra-symbols.txt b/tegra/tegra-symbols.txt
new file mode 100644
index 0000000..1a75c3d
--- /dev/null
+++ b/tegra/tegra-symbols.txt
@@ -0,0 +1,32 @@
+drm_tegra_bo_export
+drm_tegra_bo_get_handle
+drm_tegra_bo_get_name
+drm_tegra_bo_import
+drm_tegra_bo_map
+drm_tegra_bo_new
+drm_tegra_bo_open
+drm_tegra_bo_ref
+drm_tegra_bo_unmap
+drm_tegra_bo_unref
+drm_tegra_bo_wrap
+drm_tegra_channel_close
+drm_tegra_channel_get_version
+drm_tegra_channel_map
+drm_tegra_channel_open
+drm_tegra_channel_unmap
+drm_tegra_close
+drm_tegra_fence_wait
+drm_tegra_job_free
+drm_tegra_job_get_pushbuf
+drm_tegra_job_new
+drm_tegra_job_submit
+drm_tegra_job_wait
+drm_tegra_new
+drm_tegra_pushbuf_begin
+drm_tegra_pushbuf_end
+drm_tegra_pushbuf_relocate
+drm_tegra_pushbuf_sync
+drm_tegra_pushbuf_sync_cond
+drm_tegra_pushbuf_wait
+drm_tegra_syncpoint_free
+drm_tegra_syncpoint_new
diff --git a/tegra/tegra.c b/tegra/tegra.c
new file mode 100644
index 0000000..6a51c43
--- /dev/null
+++ b/tegra/tegra.c
@@ -0,0 +1,354 @@
+/*
+ * 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.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/mman.h>
+
+#include <xf86drm.h>
+
+#include <tegra_drm.h>
+
+#include "private.h"
+
+static void drm_tegra_bo_free(struct drm_tegra_bo *bo)
+{
+    struct drm_tegra *drm = bo->drm;
+
+    if (bo->map)
+        munmap(bo->map, bo->size);
+
+    drmCloseBufferHandle(drm->fd, bo->handle);
+
+    free(bo);
+}
+
+static int drm_tegra_wrap(struct drm_tegra **drmp, int fd, bool close)
+{
+    struct drm_tegra *drm;
+
+    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(int fd, struct drm_tegra **drmp)
+{
+    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);
+}
+
+static struct drm_tegra_bo *drm_tegra_bo_alloc(struct drm_tegra *drm,
+                                               uint32_t handle,
+                                               uint32_t flags,
+                                               uint32_t size)
+{
+    struct drm_tegra_bo *bo;
+
+    bo = calloc(1, sizeof(*bo));
+    if (!bo)
+        return NULL;
+
+    atomic_set(&bo->ref, 1);
+    bo->handle = handle;
+    bo->flags = flags;
+    bo->size = size;
+    bo->drm = drm;
+
+    return bo;
+}
+
+drm_public int
+drm_tegra_bo_new(struct drm_tegra *drm, uint32_t flags, uint32_t size,
+                 struct drm_tegra_bo **bop)
+{
+    struct drm_tegra_gem_create args;
+    struct drm_tegra_bo *bo;
+    int err;
+
+    if (!drm || size == 0 || !bop)
+        return -EINVAL;
+
+    bo = drm_tegra_bo_alloc(drm, 0, flags, size);
+    if (!bo)
+        return -ENOMEM;
+
+    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 *drm, uint32_t handle, uint32_t flags,
+                  uint32_t size, struct drm_tegra_bo **bop)
+{
+    struct drm_tegra_bo *bo;
+
+    if (!drm || !bop)
+        return -EINVAL;
+
+    bo = drm_tegra_bo_alloc(drm, handle, flags, size);
+    if (!bo)
+        return -ENOMEM;
+
+    *bop = bo;
+
+    return 0;
+}
+
+drm_public struct drm_tegra_bo *drm_tegra_bo_ref(struct drm_tegra_bo *bo)
+{
+    if (bo)
+        atomic_inc(&bo->ref);
+
+    return bo;
+}
+
+drm_public void drm_tegra_bo_unref(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 = drm_mmap(NULL, 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;
+}
+
+drm_public int drm_tegra_bo_get_name(struct drm_tegra_bo *bo, uint32_t *name)
+{
+    struct drm_tegra *drm = bo->drm;
+    struct drm_gem_flink args;
+    int err;
+
+    memset(&args, 0, sizeof(args));
+    args.handle = bo->handle;
+
+    err = drmIoctl(drm->fd, DRM_IOCTL_GEM_FLINK, &args);
+    if (err < 0)
+        return err;
+
+    if (name)
+        *name = args.name;
+
+    return 0;
+}
+
+drm_public int
+drm_tegra_bo_open(struct drm_tegra *drm, uint32_t name, uint32_t flags,
+                  struct drm_tegra_bo **bop)
+{
+    struct drm_gem_open args;
+    struct drm_tegra_bo *bo;
+    int err;
+
+    bo = drm_tegra_bo_alloc(drm, 0, flags, 0);
+    if (!bo)
+        return -ENOMEM;
+
+    memset(&args, 0, sizeof(args));
+    args.name = name;
+
+    err = drmIoctl(drm->fd, DRM_IOCTL_GEM_OPEN, &args);
+    if (err < 0)
+        goto free;
+
+    bo->handle = args.handle;
+    bo->size = args.size;
+
+    *bop = bo;
+
+    return 0;
+
+free:
+    free(bo);
+    return err;
+}
+
+drm_public int drm_tegra_bo_export(struct drm_tegra_bo *bo, uint32_t flags)
+{
+    int fd, err;
+
+    flags |= DRM_CLOEXEC;
+
+    err = drmPrimeHandleToFD(bo->drm->fd, bo->handle, flags, &fd);
+    if (err < 0)
+        return err;
+
+    return fd;
+}
+
+static ssize_t fd_get_size(int fd)
+{
+    ssize_t size, offset;
+    int err;
+
+    offset = lseek(fd, 0, SEEK_CUR);
+    if (offset < 0)
+        return -errno;
+
+    size = lseek(fd, 0, SEEK_END);
+    if (size < 0)
+        return -errno;
+
+    err = lseek(fd, offset, SEEK_SET);
+    if (err < 0)
+        return -errno;
+
+    return size;
+}
+
+drm_public int
+drm_tegra_bo_import(struct drm_tegra *drm, int fd, struct drm_tegra_bo **bop)
+{
+    struct drm_tegra_bo *bo;
+    ssize_t size;
+    int err;
+
+    size = fd_get_size(fd);
+    if (size < 0)
+        return size;
+
+    bo = drm_tegra_bo_alloc(drm, 0, 0, size);
+    if (!bo)
+        return -ENOMEM;
+
+    err = drmPrimeFDToHandle(drm->fd, fd, &bo->handle);
+    if (err < 0)
+        goto free;
+
+    *bop = bo;
+
+    return 0;
+
+free:
+    free(bo);
+    return err;
+}
diff --git a/tegra/tegra.h b/tegra/tegra.h
new file mode 100644
index 0000000..8f3c055
--- /dev/null
+++ b/tegra/tegra.h
@@ -0,0 +1,127 @@
+/*
+ * 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>
+
+#include <tegra_drm.h>
+
+enum drm_tegra_class {
+    DRM_TEGRA_HOST1X,
+    DRM_TEGRA_GR2D,
+    DRM_TEGRA_GR3D,
+    DRM_TEGRA_VIC,
+};
+
+struct drm_tegra_bo;
+struct drm_tegra;
+
+int drm_tegra_new(int fd, struct drm_tegra **drmp);
+void drm_tegra_close(struct drm_tegra *drm);
+
+int drm_tegra_bo_new(struct drm_tegra *drm, uint32_t flags, uint32_t size,
+                     struct drm_tegra_bo **bop);
+int drm_tegra_bo_wrap(struct drm_tegra *drm, uint32_t handle, uint32_t flags,
+                      uint32_t size, struct drm_tegra_bo **bop);
+struct drm_tegra_bo *drm_tegra_bo_ref(struct drm_tegra_bo *bo);
+void drm_tegra_bo_unref(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);
+
+int drm_tegra_bo_get_name(struct drm_tegra_bo *bo, uint32_t *name);
+int drm_tegra_bo_open(struct drm_tegra *drm, uint32_t name, uint32_t flags,
+                      struct drm_tegra_bo **bop);
+
+int drm_tegra_bo_export(struct drm_tegra_bo *bo, uint32_t flags);
+int drm_tegra_bo_import(struct drm_tegra *drm, int fd,
+                        struct drm_tegra_bo **bop);
+
+struct drm_tegra_channel;
+struct drm_tegra_mapping;
+struct drm_tegra_pushbuf;
+struct drm_tegra_job;
+struct drm_tegra_syncpoint;
+
+enum drm_tegra_sync_cond {
+    DRM_TEGRA_SYNC_COND_IMMEDIATE,
+    DRM_TEGRA_SYNC_COND_OP_DONE,
+    DRM_TEGRA_SYNC_COND_RD_DONE,
+    DRM_TEGRA_SYNC_COND_WR_SAFE,
+    DRM_TEGRA_SYNC_COND_MAX,
+  };
+
+struct drm_tegra_fence {
+    struct drm_tegra *drm;
+    uint32_t syncpt;
+    uint32_t value;
+};
+
+int drm_tegra_channel_open(struct drm_tegra *drm,
+                           enum drm_tegra_class client,
+                           struct drm_tegra_channel **channelp);
+int drm_tegra_channel_close(struct drm_tegra_channel *channel);
+unsigned int drm_tegra_channel_get_version(struct drm_tegra_channel *channel);
+int drm_tegra_channel_map(struct drm_tegra_channel *channel,
+                          struct drm_tegra_bo *bo, uint32_t flags,
+                          struct drm_tegra_mapping **mapp);
+int drm_tegra_channel_unmap(struct drm_tegra_mapping *map);
+
+int drm_tegra_job_new(struct drm_tegra_channel *channel,
+                      struct drm_tegra_job **jobp);
+int drm_tegra_job_free(struct drm_tegra_job *job);
+int drm_tegra_job_get_pushbuf(struct drm_tegra_job *job,
+                              struct drm_tegra_pushbuf **pushbufp);
+int drm_tegra_job_submit(struct drm_tegra_job *job,
+                         struct drm_tegra_fence *fence);
+int drm_tegra_job_wait(struct drm_tegra_job *job, unsigned long timeout);
+
+int drm_tegra_pushbuf_begin(struct drm_tegra_pushbuf *pushbuf,
+                            unsigned int words, uint32_t **ptrp);
+int drm_tegra_pushbuf_end(struct drm_tegra_pushbuf *pushbuf, uint32_t *ptr);
+int drm_tegra_pushbuf_wait(struct drm_tegra_pushbuf *pushbuf,
+                           struct drm_tegra_syncpoint *syncpt,
+                           uint32_t value);
+int drm_tegra_pushbuf_relocate(struct drm_tegra_pushbuf *pushbuf,
+                               uint32_t **ptrp,
+                               struct drm_tegra_mapping *target,
+                               unsigned long offset, unsigned int shift,
+                               uint32_t flags);
+int drm_tegra_pushbuf_sync(struct drm_tegra_pushbuf *pushbuf,
+                           struct drm_tegra_syncpoint *syncpt,
+                           unsigned int count);
+int drm_tegra_pushbuf_sync_cond(struct drm_tegra_pushbuf *pushbuf,
+                                uint32_t **ptrp,
+                                struct drm_tegra_syncpoint *syncpt,
+                                enum drm_tegra_sync_cond cond);
+
+int drm_tegra_syncpoint_new(struct drm_tegra *drm,
+                            struct drm_tegra_syncpoint **syncptp);
+int drm_tegra_syncpoint_free(struct drm_tegra_syncpoint *syncpt);
+int drm_tegra_fence_wait(struct drm_tegra_fence *fence, unsigned long timeout);
+
+#endif /* __DRM_TEGRA_H__ */