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libdrm: add drm syncobj create/destroy/import/export 

These ioctls are now in drm next so add the first set of libdrm APIs.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
main
Dave Airlie 2017-06-17 11:01:01 +10:00
parent 3832374daf
commit fc4922793f
2 changed files with 89 additions and 0 deletions
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81
xf86drm.c
View File

@ -4146,3 +4146,84 @@ char *drmGetDeviceNameFromFd2(int fd)
return strdup(node);
#endif
}
int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle)
{
struct drm_syncobj_create args;
int ret;
memclear(args);
args.flags = flags;
args.handle = 0;
ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_CREATE, &args);
if (ret)
return ret;
*handle = args.handle;
return 0;
}
int drmSyncobjDestroy(int fd, uint32_t handle)
{
struct drm_syncobj_destroy args;
memclear(args);
args.handle = handle;
return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_DESTROY, &args);
}
int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd)
{
struct drm_syncobj_handle args;
int ret;
memclear(args);
args.fd = -1;
args.handle = handle;
ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, &args);
if (ret)
return ret;
*obj_fd = args.fd;
return 0;
}
int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle)
{
struct drm_syncobj_handle args;
int ret;
memclear(args);
args.fd = obj_fd;
args.handle = 0;
ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, &args);
if (ret)
return ret;
*handle = args.handle;
return 0;
}
int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd)
{
struct drm_syncobj_handle args;
memclear(args);
args.fd = sync_file_fd;
args.handle = handle;
args.flags = DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE;
return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, &args);
}
int drmSyncobjExportSyncFile(int fd, uint32_t handle, int *sync_file_fd)
{
struct drm_syncobj_handle args;
int ret;
memclear(args);
args.fd = -1;
args.handle = handle;
args.flags = DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE;
ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, &args);
if (ret)
return ret;
*sync_file_fd = args.fd;
return 0;
}

8
xf86drm.h
View File

@ -853,6 +853,14 @@ extern int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_device
extern int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b);
extern int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle);
extern int drmSyncobjDestroy(int fd, uint32_t handle);
extern int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd);
extern int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle);
extern int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd);
extern int drmSyncobjExportSyncFile(int fd, uint32_t handle, int *sync_file_fd);
#if defined(__cplusplus)
}
#endif