Merge drm/drm-next into drm-intel-next-queued
Although there's nothing crucial missing, it's been a long time since the last backmerge. Catch up with drm-next. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
@@ -674,7 +674,7 @@ static inline bool drm_core_check_feature(struct drm_device *dev, u32 feature)
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static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev)
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{
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return drm_core_check_feature(dev, DRIVER_ATOMIC) ||
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dev->mode_config.funcs->atomic_commit != NULL;
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(dev->mode_config.funcs && dev->mode_config.funcs->atomic_commit != NULL);
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}
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@@ -88,6 +88,8 @@ const struct drm_format_info *
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drm_get_format_info(struct drm_device *dev,
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const struct drm_mode_fb_cmd2 *mode_cmd);
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uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
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uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
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uint32_t bpp, uint32_t depth);
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int drm_format_num_planes(uint32_t format);
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int drm_format_plane_cpp(uint32_t format, int plane);
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int drm_format_horz_chroma_subsampling(uint32_t format);
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@@ -90,7 +90,6 @@ struct drm_panel {
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struct drm_device *drm;
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struct drm_connector *connector;
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struct device *dev;
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struct device_link *link;
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const struct drm_panel_funcs *funcs;
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@@ -1,4 +1,4 @@
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/* SPDX-License-Identifier: GPL-2.0 */
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/* SPDX-License-Identifier: MIT */
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#define radeon_PCI_IDS \
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{0x1002, 0x1304, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
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{0x1002, 0x1305, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
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@@ -175,8 +175,6 @@ struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f);
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* finished to remove the job from the
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* @drm_gpu_scheduler.ring_mirror_list.
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* @node: used to append this struct to the @drm_gpu_scheduler.ring_mirror_list.
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* @work_tdr: schedules a delayed call to @drm_sched_job_timedout after the timeout
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* interval is over.
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* @id: a unique id assigned to each job scheduled on the scheduler.
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* @karma: increment on every hang caused by this job. If this exceeds the hang
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* limit of the scheduler then the job is marked guilty and will not
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@@ -195,7 +193,6 @@ struct drm_sched_job {
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struct dma_fence_cb finish_cb;
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struct work_struct finish_work;
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struct list_head node;
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struct delayed_work work_tdr;
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uint64_t id;
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atomic_t karma;
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enum drm_sched_priority s_priority;
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@@ -259,6 +256,8 @@ struct drm_sched_backend_ops {
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* finished.
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* @hw_rq_count: the number of jobs currently in the hardware queue.
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* @job_id_count: used to assign unique id to the each job.
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* @work_tdr: schedules a delayed call to @drm_sched_job_timedout after the
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* timeout interval is over.
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* @thread: the kthread on which the scheduler which run.
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* @ring_mirror_list: the list of jobs which are currently in the job queue.
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* @job_list_lock: lock to protect the ring_mirror_list.
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@@ -278,6 +277,7 @@ struct drm_gpu_scheduler {
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wait_queue_head_t job_scheduled;
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atomic_t hw_rq_count;
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atomic64_t job_id_count;
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struct delayed_work work_tdr;
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struct task_struct *thread;
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struct list_head ring_mirror_list;
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spinlock_t job_list_lock;
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@@ -312,6 +312,24 @@ ttm_bo_reference(struct ttm_buffer_object *bo)
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return bo;
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}
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/**
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* ttm_bo_get_unless_zero - reference a struct ttm_buffer_object unless
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* its refcount has already reached zero.
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* @bo: The buffer object.
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*
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* Used to reference a TTM buffer object in lookups where the object is removed
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* from the lookup structure during the destructor and for RCU lookups.
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*
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* Returns: @bo if the referencing was successful, NULL otherwise.
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*/
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static inline __must_check struct ttm_buffer_object *
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ttm_bo_get_unless_zero(struct ttm_buffer_object *bo)
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{
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if (!kref_get_unless_zero(&bo->kref))
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return NULL;
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return bo;
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}
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/**
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* ttm_bo_wait - wait for buffer idle.
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*
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@@ -1,248 +0,0 @@
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/**************************************************************************
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*
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* Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA
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* All Rights Reserved.
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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
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* 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 NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
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*/
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/** @file ttm_lock.h
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* This file implements a simple replacement for the buffer manager use
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* of the DRM heavyweight hardware lock.
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* The lock is a read-write lock. Taking it in read mode and write mode
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* is relatively fast, and intended for in-kernel use only.
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*
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* The vt mode is used only when there is a need to block all
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* user-space processes from validating buffers.
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* It's allowed to leave kernel space with the vt lock held.
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* If a user-space process dies while having the vt-lock,
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* it will be released during the file descriptor release. The vt lock
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* excludes write lock and read lock.
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*
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* The suspend mode is used to lock out all TTM users when preparing for
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* and executing suspend operations.
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*
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*/
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#ifndef _TTM_LOCK_H_
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#define _TTM_LOCK_H_
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#include <linux/wait.h>
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#include <linux/atomic.h>
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#include "ttm_object.h"
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/**
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* struct ttm_lock
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*
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* @base: ttm base object used solely to release the lock if the client
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* holding the lock dies.
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* @queue: Queue for processes waiting for lock change-of-status.
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* @lock: Spinlock protecting some lock members.
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* @rw: Read-write lock counter. Protected by @lock.
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* @flags: Lock state. Protected by @lock.
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* @kill_takers: Boolean whether to kill takers of the lock.
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* @signal: Signal to send when kill_takers is true.
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*/
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struct ttm_lock {
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struct ttm_base_object base;
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wait_queue_head_t queue;
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spinlock_t lock;
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int32_t rw;
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uint32_t flags;
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bool kill_takers;
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int signal;
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struct ttm_object_file *vt_holder;
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};
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/**
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* ttm_lock_init
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*
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* @lock: Pointer to a struct ttm_lock
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* Initializes the lock.
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*/
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extern void ttm_lock_init(struct ttm_lock *lock);
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/**
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* ttm_read_unlock
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*
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* @lock: Pointer to a struct ttm_lock
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*
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* Releases a read lock.
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*/
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extern void ttm_read_unlock(struct ttm_lock *lock);
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/**
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* ttm_read_lock
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*
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* @lock: Pointer to a struct ttm_lock
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* @interruptible: Interruptible sleeping while waiting for a lock.
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*
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* Takes the lock in read mode.
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* Returns:
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* -ERESTARTSYS If interrupted by a signal and interruptible is true.
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*/
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extern int ttm_read_lock(struct ttm_lock *lock, bool interruptible);
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/**
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* ttm_read_trylock
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*
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* @lock: Pointer to a struct ttm_lock
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* @interruptible: Interruptible sleeping while waiting for a lock.
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*
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* Tries to take the lock in read mode. If the lock is already held
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* in write mode, the function will return -EBUSY. If the lock is held
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* in vt or suspend mode, the function will sleep until these modes
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* are unlocked.
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*
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* Returns:
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* -EBUSY The lock was already held in write mode.
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* -ERESTARTSYS If interrupted by a signal and interruptible is true.
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*/
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extern int ttm_read_trylock(struct ttm_lock *lock, bool interruptible);
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/**
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* ttm_write_unlock
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*
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* @lock: Pointer to a struct ttm_lock
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*
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* Releases a write lock.
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*/
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extern void ttm_write_unlock(struct ttm_lock *lock);
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/**
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* ttm_write_lock
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*
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* @lock: Pointer to a struct ttm_lock
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* @interruptible: Interruptible sleeping while waiting for a lock.
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*
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* Takes the lock in write mode.
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* Returns:
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* -ERESTARTSYS If interrupted by a signal and interruptible is true.
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*/
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extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible);
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/**
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* ttm_lock_downgrade
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*
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* @lock: Pointer to a struct ttm_lock
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*
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* Downgrades a write lock to a read lock.
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*/
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extern void ttm_lock_downgrade(struct ttm_lock *lock);
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/**
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* ttm_suspend_lock
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*
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* @lock: Pointer to a struct ttm_lock
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*
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* Takes the lock in suspend mode. Excludes read and write mode.
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*/
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extern void ttm_suspend_lock(struct ttm_lock *lock);
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/**
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* ttm_suspend_unlock
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*
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* @lock: Pointer to a struct ttm_lock
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*
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* Releases a suspend lock
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*/
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extern void ttm_suspend_unlock(struct ttm_lock *lock);
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/**
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* ttm_vt_lock
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*
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* @lock: Pointer to a struct ttm_lock
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* @interruptible: Interruptible sleeping while waiting for a lock.
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* @tfile: Pointer to a struct ttm_object_file to register the lock with.
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*
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* Takes the lock in vt mode.
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* Returns:
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* -ERESTARTSYS If interrupted by a signal and interruptible is true.
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* -ENOMEM: Out of memory when locking.
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*/
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extern int ttm_vt_lock(struct ttm_lock *lock, bool interruptible,
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struct ttm_object_file *tfile);
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/**
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* ttm_vt_unlock
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*
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* @lock: Pointer to a struct ttm_lock
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*
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* Releases a vt lock.
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* Returns:
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* -EINVAL If the lock was not held.
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*/
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extern int ttm_vt_unlock(struct ttm_lock *lock);
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|
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/**
|
||||
* ttm_write_unlock
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||||
*
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||||
* @lock: Pointer to a struct ttm_lock
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||||
*
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||||
* Releases a write lock.
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*/
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extern void ttm_write_unlock(struct ttm_lock *lock);
|
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|
||||
/**
|
||||
* ttm_write_lock
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||||
*
|
||||
* @lock: Pointer to a struct ttm_lock
|
||||
* @interruptible: Interruptible sleeping while waiting for a lock.
|
||||
*
|
||||
* Takes the lock in write mode.
|
||||
* Returns:
|
||||
* -ERESTARTSYS If interrupted by a signal and interruptible is true.
|
||||
*/
|
||||
extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible);
|
||||
|
||||
/**
|
||||
* ttm_lock_set_kill
|
||||
*
|
||||
* @lock: Pointer to a struct ttm_lock
|
||||
* @val: Boolean whether to kill processes taking the lock.
|
||||
* @signal: Signal to send to the process taking the lock.
|
||||
*
|
||||
* The kill-when-taking-lock functionality is used to kill processes that keep
|
||||
* on using the TTM functionality when its resources has been taken down, for
|
||||
* example when the X server exits. A typical sequence would look like this:
|
||||
* - X server takes lock in write mode.
|
||||
* - ttm_lock_set_kill() is called with @val set to true.
|
||||
* - As part of X server exit, TTM resources are taken down.
|
||||
* - X server releases the lock on file release.
|
||||
* - Another dri client wants to render, takes the lock and is killed.
|
||||
*
|
||||
*/
|
||||
static inline void ttm_lock_set_kill(struct ttm_lock *lock, bool val,
|
||||
int signal)
|
||||
{
|
||||
lock->kill_takers = val;
|
||||
if (val)
|
||||
lock->signal = signal;
|
||||
}
|
||||
|
||||
#endif
|
@@ -1,354 +0,0 @@
|
||||
/**************************************************************************
|
||||
*
|
||||
* Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
|
||||
* All Rights Reserved.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a
|
||||
* copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sub license, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial portions
|
||||
* of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
|
||||
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
||||
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
||||
* USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
**************************************************************************/
|
||||
/*
|
||||
* Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
|
||||
*/
|
||||
/** @file ttm_object.h
|
||||
*
|
||||
* Base- and reference object implementation for the various
|
||||
* ttm objects. Implements reference counting, minimal security checks
|
||||
* and release on file close.
|
||||
*/
|
||||
|
||||
#ifndef _TTM_OBJECT_H_
|
||||
#define _TTM_OBJECT_H_
|
||||
|
||||
#include <linux/list.h>
|
||||
#include <drm/drm_hashtab.h>
|
||||
#include <linux/kref.h>
|
||||
#include <linux/rcupdate.h>
|
||||
#include <linux/dma-buf.h>
|
||||
|
||||
#include "ttm_memory.h"
|
||||
|
||||
/**
|
||||
* enum ttm_ref_type
|
||||
*
|
||||
* Describes what type of reference a ref object holds.
|
||||
*
|
||||
* TTM_REF_USAGE is a simple refcount on a base object.
|
||||
*
|
||||
* TTM_REF_SYNCCPU_READ is a SYNCCPU_READ reference on a
|
||||
* buffer object.
|
||||
*
|
||||
* TTM_REF_SYNCCPU_WRITE is a SYNCCPU_WRITE reference on a
|
||||
* buffer object.
|
||||
*
|
||||
*/
|
||||
|
||||
enum ttm_ref_type {
|
||||
TTM_REF_USAGE,
|
||||
TTM_REF_SYNCCPU_READ,
|
||||
TTM_REF_SYNCCPU_WRITE,
|
||||
TTM_REF_NUM
|
||||
};
|
||||
|
||||
/**
|
||||
* enum ttm_object_type
|
||||
*
|
||||
* One entry per ttm object type.
|
||||
* Device-specific types should use the
|
||||
* ttm_driver_typex types.
|
||||
*/
|
||||
|
||||
enum ttm_object_type {
|
||||
ttm_fence_type,
|
||||
ttm_buffer_type,
|
||||
ttm_lock_type,
|
||||
ttm_prime_type,
|
||||
ttm_driver_type0 = 256,
|
||||
ttm_driver_type1,
|
||||
ttm_driver_type2,
|
||||
ttm_driver_type3,
|
||||
ttm_driver_type4,
|
||||
ttm_driver_type5
|
||||
};
|
||||
|
||||
struct ttm_object_file;
|
||||
struct ttm_object_device;
|
||||
|
||||
/**
|
||||
* struct ttm_base_object
|
||||
*
|
||||
* @hash: hash entry for the per-device object hash.
|
||||
* @type: derived type this object is base class for.
|
||||
* @shareable: Other ttm_object_files can access this object.
|
||||
*
|
||||
* @tfile: Pointer to ttm_object_file of the creator.
|
||||
* NULL if the object was not created by a user request.
|
||||
* (kernel object).
|
||||
*
|
||||
* @refcount: Number of references to this object, not
|
||||
* including the hash entry. A reference to a base object can
|
||||
* only be held by a ref object.
|
||||
*
|
||||
* @refcount_release: A function to be called when there are
|
||||
* no more references to this object. This function should
|
||||
* destroy the object (or make sure destruction eventually happens),
|
||||
* and when it is called, the object has
|
||||
* already been taken out of the per-device hash. The parameter
|
||||
* "base" should be set to NULL by the function.
|
||||
*
|
||||
* @ref_obj_release: A function to be called when a reference object
|
||||
* with another ttm_ref_type than TTM_REF_USAGE is deleted.
|
||||
* This function may, for example, release a lock held by a user-space
|
||||
* process.
|
||||
*
|
||||
* This struct is intended to be used as a base struct for objects that
|
||||
* are visible to user-space. It provides a global name, race-safe
|
||||
* access and refcounting, minimal access contol and hooks for unref actions.
|
||||
*/
|
||||
|
||||
struct ttm_base_object {
|
||||
struct rcu_head rhead;
|
||||
struct drm_hash_item hash;
|
||||
enum ttm_object_type object_type;
|
||||
bool shareable;
|
||||
struct ttm_object_file *tfile;
|
||||
struct kref refcount;
|
||||
void (*refcount_release) (struct ttm_base_object **base);
|
||||
void (*ref_obj_release) (struct ttm_base_object *base,
|
||||
enum ttm_ref_type ref_type);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* struct ttm_prime_object - Modified base object that is prime-aware
|
||||
*
|
||||
* @base: struct ttm_base_object that we derive from
|
||||
* @mutex: Mutex protecting the @dma_buf member.
|
||||
* @size: Size of the dma_buf associated with this object
|
||||
* @real_type: Type of the underlying object. Needed since we're setting
|
||||
* the value of @base::object_type to ttm_prime_type
|
||||
* @dma_buf: Non ref-coutned pointer to a struct dma_buf created from this
|
||||
* object.
|
||||
* @refcount_release: The underlying object's release method. Needed since
|
||||
* we set @base::refcount_release to our own release method.
|
||||
*/
|
||||
|
||||
struct ttm_prime_object {
|
||||
struct ttm_base_object base;
|
||||
struct mutex mutex;
|
||||
size_t size;
|
||||
enum ttm_object_type real_type;
|
||||
struct dma_buf *dma_buf;
|
||||
void (*refcount_release) (struct ttm_base_object **);
|
||||
};
|
||||
|
||||
/**
|
||||
* ttm_base_object_init
|
||||
*
|
||||
* @tfile: Pointer to a struct ttm_object_file.
|
||||
* @base: The struct ttm_base_object to initialize.
|
||||
* @shareable: This object is shareable with other applcations.
|
||||
* (different @tfile pointers.)
|
||||
* @type: The object type.
|
||||
* @refcount_release: See the struct ttm_base_object description.
|
||||
* @ref_obj_release: See the struct ttm_base_object description.
|
||||
*
|
||||
* Initializes a struct ttm_base_object.
|
||||
*/
|
||||
|
||||
extern int ttm_base_object_init(struct ttm_object_file *tfile,
|
||||
struct ttm_base_object *base,
|
||||
bool shareable,
|
||||
enum ttm_object_type type,
|
||||
void (*refcount_release) (struct ttm_base_object
|
||||
**),
|
||||
void (*ref_obj_release) (struct ttm_base_object
|
||||
*,
|
||||
enum ttm_ref_type
|
||||
ref_type));
|
||||
|
||||
/**
|
||||
* ttm_base_object_lookup
|
||||
*
|
||||
* @tfile: Pointer to a struct ttm_object_file.
|
||||
* @key: Hash key
|
||||
*
|
||||
* Looks up a struct ttm_base_object with the key @key.
|
||||
*/
|
||||
|
||||
extern struct ttm_base_object *ttm_base_object_lookup(struct ttm_object_file
|
||||
*tfile, uint32_t key);
|
||||
|
||||
/**
|
||||
* ttm_base_object_lookup_for_ref
|
||||
*
|
||||
* @tdev: Pointer to a struct ttm_object_device.
|
||||
* @key: Hash key
|
||||
*
|
||||
* Looks up a struct ttm_base_object with the key @key.
|
||||
* This function should only be used when the struct tfile associated with the
|
||||
* caller doesn't yet have a reference to the base object.
|
||||
*/
|
||||
|
||||
extern struct ttm_base_object *
|
||||
ttm_base_object_lookup_for_ref(struct ttm_object_device *tdev, uint32_t key);
|
||||
|
||||
/**
|
||||
* ttm_base_object_unref
|
||||
*
|
||||
* @p_base: Pointer to a pointer referencing a struct ttm_base_object.
|
||||
*
|
||||
* Decrements the base object refcount and clears the pointer pointed to by
|
||||
* p_base.
|
||||
*/
|
||||
|
||||
extern void ttm_base_object_unref(struct ttm_base_object **p_base);
|
||||
|
||||
/**
|
||||
* ttm_ref_object_add.
|
||||
*
|
||||
* @tfile: A struct ttm_object_file representing the application owning the
|
||||
* ref_object.
|
||||
* @base: The base object to reference.
|
||||
* @ref_type: The type of reference.
|
||||
* @existed: Upon completion, indicates that an identical reference object
|
||||
* already existed, and the refcount was upped on that object instead.
|
||||
* @require_existed: Fail with -EPERM if an identical ref object didn't
|
||||
* already exist.
|
||||
*
|
||||
* Checks that the base object is shareable and adds a ref object to it.
|
||||
*
|
||||
* Adding a ref object to a base object is basically like referencing the
|
||||
* base object, but a user-space application holds the reference. When the
|
||||
* file corresponding to @tfile is closed, all its reference objects are
|
||||
* deleted. A reference object can have different types depending on what
|
||||
* it's intended for. It can be refcounting to prevent object destruction,
|
||||
* When user-space takes a lock, it can add a ref object to that lock to
|
||||
* make sure the lock is released if the application dies. A ref object
|
||||
* will hold a single reference on a base object.
|
||||
*/
|
||||
extern int ttm_ref_object_add(struct ttm_object_file *tfile,
|
||||
struct ttm_base_object *base,
|
||||
enum ttm_ref_type ref_type, bool *existed,
|
||||
bool require_existed);
|
||||
|
||||
extern bool ttm_ref_object_exists(struct ttm_object_file *tfile,
|
||||
struct ttm_base_object *base);
|
||||
|
||||
/**
|
||||
* ttm_ref_object_base_unref
|
||||
*
|
||||
* @key: Key representing the base object.
|
||||
* @ref_type: Ref type of the ref object to be dereferenced.
|
||||
*
|
||||
* Unreference a ref object with type @ref_type
|
||||
* on the base object identified by @key. If there are no duplicate
|
||||
* references, the ref object will be destroyed and the base object
|
||||
* will be unreferenced.
|
||||
*/
|
||||
extern int ttm_ref_object_base_unref(struct ttm_object_file *tfile,
|
||||
unsigned long key,
|
||||
enum ttm_ref_type ref_type);
|
||||
|
||||
/**
|
||||
* ttm_object_file_init - initialize a struct ttm_object file
|
||||
*
|
||||
* @tdev: A struct ttm_object device this file is initialized on.
|
||||
* @hash_order: Order of the hash table used to hold the reference objects.
|
||||
*
|
||||
* This is typically called by the file_ops::open function.
|
||||
*/
|
||||
|
||||
extern struct ttm_object_file *ttm_object_file_init(struct ttm_object_device
|
||||
*tdev,
|
||||
unsigned int hash_order);
|
||||
|
||||
/**
|
||||
* ttm_object_file_release - release data held by a ttm_object_file
|
||||
*
|
||||
* @p_tfile: Pointer to pointer to the ttm_object_file object to release.
|
||||
* *p_tfile will be set to NULL by this function.
|
||||
*
|
||||
* Releases all data associated by a ttm_object_file.
|
||||
* Typically called from file_ops::release. The caller must
|
||||
* ensure that there are no concurrent users of tfile.
|
||||
*/
|
||||
|
||||
extern void ttm_object_file_release(struct ttm_object_file **p_tfile);
|
||||
|
||||
/**
|
||||
* ttm_object device init - initialize a struct ttm_object_device
|
||||
*
|
||||
* @mem_glob: struct ttm_mem_global for memory accounting.
|
||||
* @hash_order: Order of hash table used to hash the base objects.
|
||||
* @ops: DMA buf ops for prime objects of this device.
|
||||
*
|
||||
* This function is typically called on device initialization to prepare
|
||||
* data structures needed for ttm base and ref objects.
|
||||
*/
|
||||
|
||||
extern struct ttm_object_device *
|
||||
ttm_object_device_init(struct ttm_mem_global *mem_glob,
|
||||
unsigned int hash_order,
|
||||
const struct dma_buf_ops *ops);
|
||||
|
||||
/**
|
||||
* ttm_object_device_release - release data held by a ttm_object_device
|
||||
*
|
||||
* @p_tdev: Pointer to pointer to the ttm_object_device object to release.
|
||||
* *p_tdev will be set to NULL by this function.
|
||||
*
|
||||
* Releases all data associated by a ttm_object_device.
|
||||
* Typically called from driver::unload before the destruction of the
|
||||
* device private data structure.
|
||||
*/
|
||||
|
||||
extern void ttm_object_device_release(struct ttm_object_device **p_tdev);
|
||||
|
||||
#define ttm_base_object_kfree(__object, __base)\
|
||||
kfree_rcu(__object, __base.rhead)
|
||||
|
||||
extern int ttm_prime_object_init(struct ttm_object_file *tfile,
|
||||
size_t size,
|
||||
struct ttm_prime_object *prime,
|
||||
bool shareable,
|
||||
enum ttm_object_type type,
|
||||
void (*refcount_release)
|
||||
(struct ttm_base_object **),
|
||||
void (*ref_obj_release)
|
||||
(struct ttm_base_object *,
|
||||
enum ttm_ref_type ref_type));
|
||||
|
||||
static inline enum ttm_object_type
|
||||
ttm_base_object_type(struct ttm_base_object *base)
|
||||
{
|
||||
return (base->object_type == ttm_prime_type) ?
|
||||
container_of(base, struct ttm_prime_object, base)->real_type :
|
||||
base->object_type;
|
||||
}
|
||||
extern int ttm_prime_fd_to_handle(struct ttm_object_file *tfile,
|
||||
int fd, u32 *handle);
|
||||
extern int ttm_prime_handle_to_fd(struct ttm_object_file *tfile,
|
||||
uint32_t handle, uint32_t flags,
|
||||
int *prime_fd);
|
||||
|
||||
#define ttm_prime_object_kfree(__obj, __prime) \
|
||||
kfree_rcu(__obj, __prime.base.rhead)
|
||||
#endif
|
Reference in New Issue
Block a user