diff options
Diffstat (limited to '')
| -rw-r--r-- | tegra/.gitignore | 1 | ||||
| -rw-r--r-- | tegra/channel.c | 195 | ||||
| -rw-r--r-- | tegra/job.c | 187 | ||||
| -rw-r--r-- | tegra/libdrm_tegra.pc.in | 11 | ||||
| -rw-r--r-- | tegra/meson.build | 64 | ||||
| -rw-r--r-- | tegra/private.h | 118 | ||||
| -rw-r--r-- | tegra/pushbuf.c | 184 | ||||
| -rw-r--r-- | tegra/syncpt.c | 101 | ||||
| -rw-r--r-- | tegra/tegra-symbols.txt | 32 | ||||
| -rw-r--r-- | tegra/tegra.c | 354 | ||||
| -rw-r--r-- | tegra/tegra.h | 127 |
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..0b63d78 --- /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_pthread_stubs, 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__ */ |