index : renesas/drm.git	android live master
	libdrm, cloned from git://anongit.freedesktop.org/mesa/drm	Laurent Pinchart

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path: root/linux/proc.c

Age	Commit message (Collapse)	Author
2000-09-29	Audit calls to schedule() Remove tags from files shared with Linux kernel	Rik Faith
	tree Remove debugging statements to make debugging more useful Other minor cleanups in preparation for sync with Linux 2.4.0-test9-pre7
2000-09-24	commit xfree86 4.0.1d-pre update	Alan Hourihane
2000-08-04	Sync with Linux 2.4.0-test6-pre2	Rik Faith
2000-07-19	Sync with Linux 2.4.0-test4 kernel	Rik Faith
2000-06-08	Merged glxmisc-3-0-0	Brian Paul
2000-05-18	Merged ati-4-0-1	Kevin E Martin
2000-04-04	Merged mga branch with trunk	Jeff Hartmann
2000-03-16	Merge with 4.0	Jeff Hartmann
2000-02-22	Import of XFree86 3.9.18	Kevin E Martin
2000-01-06	Import of XFree86 3.9.17	Rik Faith
1999-12-18	Rename the device to be /dev/dri instead of /dev/dri to avoid a conflict.	Daryll Strauss
	Rename proc entry from /proc/graphics to /proc/dri to be consistent.
1999-12-07	Move Mesa to xc/extras Update to the latest Mesa 3.2 code Fix the Q3Demo	Daryll Strauss
	bugs (white railgun and texture mapping) Simplify driver texture mapping routines Fix device driver for 2.3 kernels Improve performance
1999-12-05	First DRI release of 3dfx driver.	Daryll Strauss

generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 04:05:33 +0000

/**************************************************************************
 *
 * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., 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 Hellström <thomas-at-tungstengraphics-dot-com>
 */

#ifndef _DRM_OBJECTS_H
#define _DRM_OBJECTS_H

struct drm_device;
struct drm_bo_mem_reg;

/***************************************************
 * User space objects. (drm_object.c)
 */

#define drm_user_object_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)

enum drm_object_type {
	drm_fence_type,
	drm_buffer_type,
	    /*
	     * Add other user space object types here.
	     */
	drm_driver_type0 = 256,
	drm_driver_type1,
	drm_driver_type2,
	drm_driver_type3,
	drm_driver_type4
};

/*
 * A user object is a structure that helps the drm give out user handles
 * to kernel internal objects and to keep track of these objects so that
 * they can be destroyed, for example when the user space process exits.
 * Designed to be accessible using a user space 32-bit handle.
 */

struct drm_user_object {
	struct drm_hash_item hash;
	struct list_head list;
	enum drm_object_type type;
	atomic_t refcount;
	int shareable;
	struct drm_file *owner;
	void (*ref_struct_locked) (struct drm_file * priv,
				   struct drm_user_object * obj,
				   enum drm_ref_type ref_action);
	void (*unref) (struct drm_file * priv, struct drm_user_object * obj,
		       enum drm_ref_type unref_action);
	void (*remove) (struct drm_file * priv, struct drm_user_object * obj);
};

/*
 * A ref object is a structure which is used to
 * keep track of references to user objects and to keep track of these
 * references so that they can be destroyed for example when the user space
 * process exits. Designed to be accessible using a pointer to the _user_ object.
 */

struct drm_ref_object {
	struct drm_hash_item hash;
	struct list_head list;
	atomic_t refcount;
	enum drm_ref_type unref_action;
};

/**
 * Must be called with the struct_mutex held.
 */

extern int drm_add_user_object(struct drm_file * priv, struct drm_user_object * item,
			       int shareable);
/**
 * Must be called with the struct_mutex held.
 */

extern struct drm_user_object *drm_lookup_user_object(struct drm_file * priv,
						 uint32_t key);

/*
 * Must be called with the struct_mutex held.
 * If "item" has been obtained by a call to drm_lookup_user_object. You may not
 * release the struct_mutex before calling drm_remove_ref_object.
 * This function may temporarily release the struct_mutex.
 */

extern int drm_remove_user_object(struct drm_file * priv, struct drm_user_object * item);

/*
 * Must be called with the struct_mutex held. May temporarily release it.
 */

extern int drm_add_ref_object(struct drm_file * priv,
			      struct drm_user_object * referenced_object,
			      enum drm_ref_type ref_action);

/*
 * Must be called with the struct_mutex held.
 */

struct drm_ref_object *drm_lookup_ref_object(struct drm_file * priv,
					struct drm_user_object * referenced_object,
					enum drm_ref_type ref_action);
/*
 * Must be called with the struct_mutex held.
 * If "item" has been obtained by a call to drm_lookup_ref_object. You may not
 * release the struct_mutex before calling drm_remove_ref_object.
 * This function may temporarily release the struct_mutex.
 */

extern void drm_remove_ref_object(struct drm_file * priv, struct drm_ref_object * item);
extern int drm_user_object_ref(struct drm_file * priv, uint32_t user_token,
			       enum drm_object_type type,
			       struct drm_user_object ** object);
extern int drm_user_object_unref(struct drm_file * priv, uint32_t user_token,
				 enum drm_object_type type);

/***************************************************
 * Fence objects. (drm_fence.c)
 */

struct drm_fence_object {
	struct drm_user_object base;
        struct drm_device *dev;
	atomic_t usage;

	/*
	 * The below three fields are protected by the fence manager spinlock.
	 */

	struct list_head ring;
	int fence_class;
	uint32_t native_type;
	uint32_t type;
	uint32_t signaled;
	uint32_t sequence;
	uint32_t flush_mask;
	uint32_t submitted_flush;
        uint32_t error;
};

#define _DRM_FENCE_CLASSES 8
#define _DRM_FENCE_TYPE_EXE 0x00

struct drm_fence_class_manager {
	struct list_head ring;
	uint32_t pending_flush;
	wait_queue_head_t fence_queue;
	int pending_exe_flush;
	uint32_t last_exe_flush;
	uint32_t exe_flush_sequence;
};

struct drm_fence_manager {
	int initialized;
	rwlock_t lock;
	struct drm_fence_class_manager fence_class[_DRM_FENCE_CLASSES];
	uint32_t num_classes;
	atomic_t count;
};

struct drm_fence_driver {
	uint32_t num_classes;
	uint32_t wrap_diff;
	uint32_t flush_diff;
	uint32_t sequence_mask;
	int lazy_capable;
	int (*has_irq) (struct drm_device * dev, uint32_t fence_class,
			uint32_t flags);
	int (*emit) (struct drm_device * dev, uint32_t fence_class, uint32_t flags,
		     uint32_t * breadcrumb, uint32_t * native_type);
	void (*poke_flush) (struct drm_device * dev, uint32_t fence_class);
};

extern void drm_fence_handler(struct drm_device *dev, uint32_t fence_class,
			      uint32_t sequence, uint32_t type, uint32_t error);
extern void drm_fence_manager_init(struct drm_device *dev);
extern void drm_fence_manager_takedown(struct drm_device *dev);
extern void drm_fence_flush_old(struct drm_device *dev, uint32_t fence_class,
				uint32_t sequence);
extern int drm_fence_object_flush(struct drm_fence_object * fence, uint32_t type);
extern int drm_fence_object_signaled(struct drm_fence_object * fence,
				     uint32_t type, int flush);
extern void drm_fence_usage_deref_locked(struct drm_fence_object ** fence);
extern void drm_fence_usage_deref_unlocked(struct drm_fence_object ** fence);
extern struct drm_fence_object *drm_fence_reference_locked(struct drm_fence_object *src);
extern void drm_fence_reference_unlocked(struct drm_fence_object **dst,
					 struct drm_fence_object *src);
extern int drm_fence_object_wait(struct drm_fence_object * fence,
				 int lazy, int ignore_signals, uint32_t mask);
extern int drm_fence_object_create(struct drm_device *dev, uint32_t type,
				   uint32_t fence_flags, uint32_t fence_class,
				   struct drm_fence_object ** c_fence);
extern int drm_fence_object_emit(struct drm_fence_object * fence,
				 uint32_t fence_flags, uint32_t class,
				 uint32_t type);
extern void drm_fence_fill_arg(struct drm_fence_object *fence,
			       struct drm_fence_arg *arg);

extern int drm_fence_add_user_object(struct drm_file * priv,
				     struct drm_fence_object * fence, int shareable);

extern int drm_fence_create_ioctl(struct drm_device *dev, void *data,
				  struct drm_file *file_priv);
extern int drm_fence_destroy_ioctl(struct drm_device *dev, void *data,
				   struct drm_file *file_priv);
extern int drm_fence_reference_ioctl(struct drm_device *dev, void *data,
				     struct drm_file *file_priv);
extern int drm_fence_unreference_ioctl(struct drm_device *dev, void *data,
				       struct drm_file *file_priv);
extern int drm_fence_signaled_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
extern int drm_fence_flush_ioctl(struct drm_device *dev, void *data,
				 struct drm_file *file_priv);
extern int drm_fence_wait_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
extern int drm_fence_emit_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
extern int drm_fence_buffers_ioctl(struct drm_device *dev, void *data,
				   struct drm_file *file_priv);
/**************************************************
 *TTMs
 */

/*