ffa9443fb3
This IOCTL provides a mechanism for userspace to trigger a sync object directly. There are other ways that userspace can trigger a syncobj such as submitting a dummy batch somewhere or hanging on to a triggered sync_file and doing an import. This just provides an easy way to manually trigger the sync object without weird hacks. The motivation for this IOCTL is Vulkan fences. Vulkan lets you create a fence already in the signaled state so that you can wait on it immediatly without stalling. We could also handle this with a new create flag to ask the driver to create a syncobj that is already signaled but the IOCTL seemed a bit cleaner and more generic. v2: - Take an array of sync objects (Dave Airlie) v3: - Throw -EINVAL if pad != 0 Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
176 lines
6.2 KiB
C
176 lines
6.2 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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* Daniel Vetter <daniel.vetter@ffwll.ch>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#define DRM_IF_MAJOR 1
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#define DRM_IF_MINOR 4
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/* drm_file.c */
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extern struct mutex drm_global_mutex;
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void drm_lastclose(struct drm_device *dev);
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/* drm_pci.c */
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int drm_irq_by_busid(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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void drm_pci_agp_destroy(struct drm_device *dev);
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int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
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/* drm_prime.c */
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int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
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void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
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void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv,
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struct dma_buf *dma_buf);
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/* drm_drv.c */
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struct drm_minor *drm_minor_acquire(unsigned int minor_id);
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void drm_minor_release(struct drm_minor *minor);
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/* drm_info.c */
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int drm_name_info(struct seq_file *m, void *data);
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int drm_clients_info(struct seq_file *m, void* data);
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int drm_gem_name_info(struct seq_file *m, void *data);
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/* drm_vblank.c */
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extern unsigned int drm_timestamp_monotonic;
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void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
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void drm_vblank_cleanup(struct drm_device *dev);
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/* IOCTLS */
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int drm_wait_vblank_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp);
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int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/* drm_irq.c */
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/* IOCTLS */
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int drm_legacy_irq_control(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/* drm_auth.c */
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int drm_getmagic(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_authmagic(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_setmaster_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_master_open(struct drm_file *file_priv);
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void drm_master_release(struct drm_file *file_priv);
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/* drm_sysfs.c */
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extern struct class *drm_class;
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int drm_sysfs_init(void);
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void drm_sysfs_destroy(void);
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struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
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int drm_sysfs_connector_add(struct drm_connector *connector);
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void drm_sysfs_connector_remove(struct drm_connector *connector);
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/* drm_gem.c */
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int drm_gem_init(struct drm_device *dev);
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void drm_gem_destroy(struct drm_device *dev);
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int drm_gem_handle_create_tail(struct drm_file *file_priv,
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struct drm_gem_object *obj,
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u32 *handlep);
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int drm_gem_close_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_gem_open_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
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void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
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/* drm_debugfs.c drm_debugfs_crc.c */
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#if defined(CONFIG_DEBUG_FS)
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int drm_debugfs_init(struct drm_minor *minor, int minor_id,
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struct dentry *root);
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int drm_debugfs_cleanup(struct drm_minor *minor);
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int drm_debugfs_connector_add(struct drm_connector *connector);
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void drm_debugfs_connector_remove(struct drm_connector *connector);
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int drm_debugfs_crtc_add(struct drm_crtc *crtc);
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void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
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int drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
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#else
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static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
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struct dentry *root)
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{
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return 0;
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}
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static inline int drm_debugfs_cleanup(struct drm_minor *minor)
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{
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return 0;
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}
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static inline int drm_debugfs_connector_add(struct drm_connector *connector)
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{
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return 0;
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}
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static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
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{
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}
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static inline int drm_debugfs_crtc_add(struct drm_crtc *crtc)
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{
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return 0;
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}
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static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
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{
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}
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static inline int drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
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{
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return 0;
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}
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#endif
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drm_ioctl_t drm_version;
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drm_ioctl_t drm_getunique;
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drm_ioctl_t drm_getclient;
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/* drm_syncobj.c */
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void drm_syncobj_open(struct drm_file *file_private);
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void drm_syncobj_release(struct drm_file *file_private);
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int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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