bsd-core/Makefile


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SHARED=		../shared-core

SUBDIR = drm mach64 mga r128 radeon savage sis tdfx i915 # via

.include <bsd.obj.mk>

depend: drm_pciids.h
all: drm_pciids.h

drm_pciids.h: ${SHARED}/drm_pciids.txt
	sh ../scripts/create_bsd_pci_lists.sh < ${SHARED}/drm_pciids.txt
/**************************************************************************
 *
 * 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 Hellstr�m <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,
	drm_lock_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. 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_types;
	uint32_t type;
	uint32_t signaled_types;
	uint32_t sequence;
	uint32_t waiting_types;
	uint32_t error;
};

#define _DRM_FENCE_CLASSES 8

struct drm_fence_class_manager {
	struct list_head ring;
	uint32_t pending_flush;
	uint32_t waiting_types;
	wait_queue_head_t fence_queue;
	uint32_t highest_waiting_sequence;
        uint32_t latest_queued_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 {
	unsigned long *waiting_jiffies;
	uint32_t num_classes;
	uint32_t wrap_diff;
	uint32_t flush_diff;
	uint32_t sequence_mask;

	/*
	 * Driver implemented functions:
	 * has_irq() : 1 if the hardware can update the indicated type_flags using an
	 * irq handler. 0 if polling is required.
	 *
	 * emit() : Emit a sequence number to the command stream.
	 * Return the sequence number.
	 *
	 * flush() : Make sure the flags indicated in fc->pending_flush will eventually
	 * signal for fc->highest_received_sequence and all preceding sequences.
	 * Acknowledge by clearing the flags fc->pending_flush.
	 *
	 * poll() : Call drm_fence_handler with any new information.