Am 18.07.2017 um 02:48 schrieb Dave Airlie:
> From: Dave Airlie <airlied at redhat.com>
>
> These are just wrappers using the amdgpu device handle.
>
> Signed-off-by: Dave Airlie <airlied at redhat.com>
Reviewed-by: Christian König <christian.koenig at amd.com> for this one.
> ---
> amdgpu/amdgpu.h | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
> amdgpu/amdgpu_cs.c | 38 +++++++++++++++++++++++++++++++++++++
> 2 files changed, 92 insertions(+), 1 deletion(-)
>
> diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
> index 1901fa8..183f974 100644
> --- a/amdgpu/amdgpu.h
> +++ b/amdgpu/amdgpu.h
> @@ -1328,8 +1328,61 @@ int amdgpu_cs_destroy_semaphore(amdgpu_semaphore_handle sem);
> */
> const char *amdgpu_get_marketing_name(amdgpu_device_handle dev);
>
> +/**
> + * Create kernel sync object
> + *
> + * \param dev - \c [in] device handle
> + * \param syncobj - \c [out] sync object handle
> + *
> + * \return 0 on success\n
> + * <0 - Negative POSIX Error code
> + *
> +*/
> +int amdgpu_cs_create_syncobj(amdgpu_device_handle dev,
> + uint32_t *syncobj);
> +/**
> + * Destroy kernel sync object
> + *
> + * \param dev - \c [in] device handle
> + * \param syncobj - \c [in] sync object handle
> + *
> + * \return 0 on success\n
> + * <0 - Negative POSIX Error code
> + *
> +*/
> +int amdgpu_cs_destroy_syncobj(amdgpu_device_handle dev,
> + uint32_t syncobj);
> +
> +/**
> + * Export kernel sync object to shareable fd.
> + *
> + * \param dev - \c [in] device handle
> + * \param syncobj - \c [in] sync object handle
> + * \param shared_fd - \c [out] shared file descriptor.
> + *
> + * \return 0 on success\n
> + * <0 - Negative POSIX Error code
> + *
> +*/
> +int amdgpu_cs_export_syncobj(amdgpu_device_handle dev,
> + uint32_t syncobj,
> + int *shared_fd);
> +/**
> + * Import kernel sync object from shareable fd.
> + *
> + * \param dev - \c [in] device handle
> + * \param shared_fd - \c [in] shared file descriptor.
> + * \param syncobj - \c [out] sync object handle
> + *
> + * \return 0 on success\n
> + * <0 - Negative POSIX Error code
> + *
> +*/
> +int amdgpu_cs_import_syncobj(amdgpu_device_handle dev,
> + int shared_fd,
> + uint32_t *syncobj);
> +
> #ifdef __cplusplus
> }
> #endif
> -
> #endif /* #ifdef _AMDGPU_H_ */
> diff --git a/amdgpu/amdgpu_cs.c b/amdgpu/amdgpu_cs.c
> index 868eb7b..722fd75 100644
> --- a/amdgpu/amdgpu_cs.c
> +++ b/amdgpu/amdgpu_cs.c
> @@ -596,3 +596,41 @@ int amdgpu_cs_destroy_semaphore(amdgpu_semaphore_handle sem)
> {
> return amdgpu_cs_unreference_sem(sem);
> }
> +
> +int amdgpu_cs_create_syncobj(amdgpu_device_handle dev,
> + uint32_t *handle)
> +{
> + if (NULL == dev)
> + return -EINVAL;
> +
> + return drmSyncobjCreate(dev->fd, 0, handle);
> +}
> +
> +int amdgpu_cs_destroy_syncobj(amdgpu_device_handle dev,
> + uint32_t handle)
> +{
> + if (NULL == dev)
> + return -EINVAL;
> +
> + return drmSyncobjDestroy(dev->fd, handle);
> +}
> +
> +int amdgpu_cs_export_syncobj(amdgpu_device_handle dev,
> + uint32_t handle,
> + int *shared_fd)
> +{
> + if (NULL == dev)
> + return -EINVAL;
> +
> + return drmSyncobjHandleToFD(dev->fd, handle, shared_fd);
> +}
> +
> +int amdgpu_cs_import_syncobj(amdgpu_device_handle dev,
> + int shared_fd,
> + uint32_t *handle)
> +{
> + if (NULL == dev)
> + return -EINVAL;
> +
> + return drmSyncobjFDToHandle(dev->fd, shared_fd, handle);
> +}
