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/*
* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <nvgpu/types.h>
#include <nvgpu/os_fence.h>
#include <nvgpu/linux/os_fence_android.h>
#include <nvgpu/gk20a.h>
#include <nvgpu/channel.h>
#include "../drivers/staging/android/sync.h"
inline struct sync_fence *nvgpu_get_sync_fence(struct nvgpu_os_fence *s)
{
struct sync_fence *fence = (struct sync_fence *)s->priv;
return fence;
}
static void nvgpu_os_fence_clear(struct nvgpu_os_fence *fence_out)
{
fence_out->priv = NULL;
fence_out->g = NULL;
fence_out->ops = NULL;
}
void nvgpu_os_fence_init(struct nvgpu_os_fence *fence_out,
struct gk20a *g, const struct nvgpu_os_fence_ops *fops,
struct sync_fence *fence)
{
fence_out->g = g;
fence_out->ops = fops;
fence_out->priv = (void *)fence;
}
void nvgpu_os_fence_android_drop_ref(struct nvgpu_os_fence *s)
{
struct sync_fence *fence = nvgpu_get_sync_fence(s);
sync_fence_put(fence);
nvgpu_os_fence_clear(s);
}
void nvgpu_os_fence_android_install_fd(struct nvgpu_os_fence *s, int fd)
{
struct sync_fence *fence = nvgpu_get_sync_fence(s);
sync_fence_get(fence);
sync_fence_install(fence, fd);
}
int nvgpu_os_fence_fdget(struct nvgpu_os_fence *fence_out,
struct channel_gk20a *c, int fd)
{
int err = -ENOSYS;
#ifdef CONFIG_TEGRA_GK20A_NVHOST
err = nvgpu_os_fence_syncpt_fdget(fence_out, c, fd);
#endif
if (err)
err = nvgpu_os_fence_sema_fdget(fence_out, c, fd);
if (err)
nvgpu_err(c->g, "error obtaining fence from fd %d", fd);
return err;
}
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