forked from Minki/linux
25e1a79874
There is a risk of overflowing vblank timestamps in 2038 or 2106 if
someone sets the drm_timestamp_monotonic module parameter to zero.
I found no indication of anyone ever setting the parameter, or
complaining about the default being wrong, after it was introduced
as a way to handle backwards-compatibility with linux prior to
c61eef726a ("drm: add support for monotonic vblank timestamps"),
so it's probably safer to just remove the parameter completely
and only allowing the default behavior.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
175 lines
6.2 KiB
C
175 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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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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