forked from Minki/linux
ea2aa97ca3
Currently we are assuming a one to one mapping between dmabuf and
GEM handle when releasing GEM handles.
But that is not always true, since we would create extra handles for the
GEM obj in cases like gem_open() and getfb{,2}().
A similar issue was reported at:
https://lore.kernel.org/all/20211105083308.392156-1-jay.xu@rock-chips.com/
Another problem is that the imported dmabuf might not always have
gem_obj->dma_buf set, which would cause leaks in
drm_gem_remove_prime_handles().
Let's fix these for now by using handle to find the exact map to remove.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220819072834.17888-1-jeffy.chen@rock-chips.com
258 lines
8.7 KiB
C
258 lines
8.7 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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#include <linux/kthread.h>
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#include <drm/drm_ioctl.h>
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#include <drm/drm_vblank.h>
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#define DRM_IF_MAJOR 1
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#define DRM_IF_MINOR 4
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#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
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struct dentry;
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struct dma_buf;
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struct iosys_map;
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struct drm_connector;
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struct drm_crtc;
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struct drm_framebuffer;
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struct drm_gem_object;
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struct drm_master;
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struct drm_minor;
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struct drm_prime_file_private;
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struct drm_printer;
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struct drm_vblank_crtc;
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/* drm_file.c */
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extern struct mutex drm_global_mutex;
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bool drm_dev_needs_global_mutex(struct drm_device *dev);
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struct drm_file *drm_file_alloc(struct drm_minor *minor);
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void drm_file_free(struct drm_file *file);
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void drm_lastclose(struct drm_device *dev);
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#ifdef CONFIG_PCI
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/* drm_pci.c */
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int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
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#else
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static inline int drm_pci_set_busid(struct drm_device *dev,
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struct drm_master *master)
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{
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return -EINVAL;
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}
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#endif
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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(struct drm_prime_file_private *prime_fpriv,
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uint32_t handle);
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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_managed.c */
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void drm_managed_release(struct drm_device *dev);
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void drmm_add_final_kfree(struct drm_device *dev, void *container);
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/* drm_vblank.c */
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static inline bool drm_vblank_passed(u64 seq, u64 ref)
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{
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return (seq - ref) <= (1 << 23);
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}
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void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
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int drm_vblank_get(struct drm_device *dev, unsigned int pipe);
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void drm_vblank_put(struct drm_device *dev, unsigned int pipe);
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u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
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/* drm_vblank_work.c */
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static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank)
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{
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kthread_flush_worker(vblank->worker);
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}
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static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank)
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{
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kthread_destroy_worker(vblank->worker);
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}
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int drm_vblank_worker_init(struct drm_vblank_crtc *vblank);
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void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank);
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void drm_handle_vblank_works(struct drm_vblank_crtc *vblank);
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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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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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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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#endif
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int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp);
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int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp);
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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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bool drm_master_internal_acquire(struct drm_device *dev);
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void drm_master_internal_release(struct drm_device *dev);
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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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void drm_sysfs_lease_event(struct drm_device *dev);
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/* drm_gem.c */
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int drm_gem_init(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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void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
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const struct drm_gem_object *obj);
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int drm_gem_pin(struct drm_gem_object *obj);
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void drm_gem_unpin(struct drm_gem_object *obj);
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int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map);
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void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
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int drm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
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u32 handle);
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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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void drm_debugfs_cleanup(struct drm_minor *minor);
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void 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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void 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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void 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 void drm_debugfs_cleanup(struct drm_minor *minor)
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{
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}
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static inline void drm_debugfs_connector_add(struct drm_connector *connector)
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{
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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 void drm_debugfs_crtc_add(struct drm_crtc *crtc)
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{
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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 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
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{
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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_transfer_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_timeline_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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int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_private);
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/* drm_framebuffer.c */
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void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
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const struct drm_framebuffer *fb);
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void drm_framebuffer_debugfs_init(struct drm_minor *minor);
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