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/*
* 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;
}
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