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drm/amdgpu: add syncobj create/destroy/import/export apis 

These are just wrappers using the amdgpu device handle.

Acked-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
main
Dave Airlie 2017-07-16 20:18:40 +01:00
parent ac21401790
commit 69532d0188
2 changed files with 92 additions and 1 deletions
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55
amdgpu/amdgpu.h
View File

@ -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_ */

38
amdgpu/amdgpu_cs.c
View File

@ -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);
}