[net-next-2.6.git] / drivers / gpu / drm / radeon / radeon_object.h

/*
 * Copyright 2008 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 * Copyright 2009 Jerome Glisse.
 *
 * 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, sublicense,
 * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie
 *          Alex Deucher
 *          Jerome Glisse
 */
#ifndef __RADEON_OBJECT_H__
#define __RADEON_OBJECT_H__

#include <drm/radeon_drm.h>
#include "radeon.h"

/**
 * radeon_mem_type_to_domain - return domain corresponding to mem_type
 * @mem_type:	ttm memory type
 *
 * Returns corresponding domain of the ttm mem_type
 */
static inline unsigned radeon_mem_type_to_domain(u32 mem_type)
{
	switch (mem_type) {
	case TTM_PL_VRAM:
		return RADEON_GEM_DOMAIN_VRAM;
	case TTM_PL_TT:
		return RADEON_GEM_DOMAIN_GTT;
	case TTM_PL_SYSTEM:
		return RADEON_GEM_DOMAIN_CPU;
	default:
		break;
	}
	return 0;
}

/**
 * radeon_bo_reserve - reserve bo
 * @bo:		bo structure
 * @no_wait:		don't sleep while trying to reserve (return -EBUSY)
 *
 * Returns:
 * -EBUSY: buffer is busy and @no_wait is true
 * -ERESTART: A wait for the buffer to become unreserved was interrupted by
 * a signal. Release all buffer reservations and return to user-space.
 */
static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait)
{
	int r;

retry:
	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0);
	if (unlikely(r != 0)) {
		if (r == -ERESTART)
			goto retry;
		dev_err(bo->rdev->dev, "%p reserve failed\n", bo);
		return r;
	}
	return 0;
}

static inline void radeon_bo_unreserve(struct radeon_bo *bo)
{
	ttm_bo_unreserve(&bo->tbo);
}

/**
 * radeon_bo_gpu_offset - return GPU offset of bo
 * @bo:	radeon object for which we query the offset
 *
 * Returns current GPU offset of the object.
 *
 * Note: object should either be pinned or reserved when calling this
 * function, it might be usefull to add check for this for debugging.
 */
static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
{
	return bo->tbo.offset;
}

static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
{
	return bo->tbo.num_pages << PAGE_SHIFT;
}

static inline bool radeon_bo_is_reserved(struct radeon_bo *bo)
{
	return !!atomic_read(&bo->tbo.reserved);
}

/**
 * radeon_bo_mmap_offset - return mmap offset of bo
 * @bo:	radeon object for which we query the offset
 *
 * Returns mmap offset of the object.
 *
 * Note: addr_space_offset is constant after ttm bo init thus isn't protected
 * by any lock.
 */
static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
{
	return bo->tbo.addr_space_offset;
}

static inline int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,
					bool no_wait)
{
	int r;

retry:
	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0);
	if (unlikely(r != 0)) {
		if (r == -ERESTART)
			goto retry;
		dev_err(bo->rdev->dev, "%p reserve failed for wait\n", bo);
		return r;
	}
	spin_lock(&bo->tbo.lock);
	if (mem_type)
		*mem_type = bo->tbo.mem.mem_type;
	if (bo->tbo.sync_obj)
		r = ttm_bo_wait(&bo->tbo, true, true, no_wait);
	spin_unlock(&bo->tbo.lock);
	ttm_bo_unreserve(&bo->tbo);
	if (unlikely(r == -ERESTART))
		goto retry;
	return r;
}

extern int radeon_bo_create(struct radeon_device *rdev,
				struct drm_gem_object *gobj, unsigned long size,
				bool kernel, u32 domain,
				struct radeon_bo **bo_ptr);
extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
extern void radeon_bo_kunmap(struct radeon_bo *bo);
extern void radeon_bo_unref(struct radeon_bo **bo);
extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
extern int radeon_bo_unpin(struct radeon_bo *bo);
extern int radeon_bo_evict_vram(struct radeon_device *rdev);
extern void radeon_bo_force_delete(struct radeon_device *rdev);
extern int radeon_bo_init(struct radeon_device *rdev);
extern void radeon_bo_fini(struct radeon_device *rdev);
extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
				struct list_head *head);
extern int radeon_bo_list_reserve(struct list_head *head);
extern void radeon_bo_list_unreserve(struct list_head *head);
extern int radeon_bo_list_validate(struct list_head *head, void *fence);
extern void radeon_bo_list_unvalidate(struct list_head *head, void *fence);
extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
				struct vm_area_struct *vma);
extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
				u32 tiling_flags, u32 pitch);
extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
				u32 *tiling_flags, u32 *pitch);
extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
				bool force_drop);
extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
					struct ttm_mem_reg *mem);
extern void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
#endif
Commit	Line	Data
771fe6b9 JG	1	/*
	2	* Copyright 2008 Advanced Micro Devices, Inc.
	3	* Copyright 2008 Red Hat Inc.
	4	* Copyright 2009 Jerome Glisse.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a
	7	* copy of this software and associated documentation files (the "Software"),
	8	* to deal in the Software without restriction, including without limitation
	9	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	10	* and/or sell copies of the Software, and to permit persons to whom the
	11	* Software is furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	20	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	21	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	22	* OTHER DEALINGS IN THE SOFTWARE.
	23	*
	24	* Authors: Dave Airlie
	25	* Alex Deucher
	26	* Jerome Glisse
	27	*/
	28	#ifndef __RADEON_OBJECT_H__
	29	#define __RADEON_OBJECT_H__
	30
4c788679 JG	31	#include <drm/radeon_drm.h>
4c788679 JG	32	#include "radeon.h"
771fe6b9	33
4c788679 JG	34	/**
	35	* radeon_mem_type_to_domain - return domain corresponding to mem_type
	36	* @mem_type: ttm memory type
	37	*
	38	* Returns corresponding domain of the ttm mem_type
	39	*/
	40	static inline unsigned radeon_mem_type_to_domain(u32 mem_type)
	41	{
	42	switch (mem_type) {
	43	case TTM_PL_VRAM:
	44	return RADEON_GEM_DOMAIN_VRAM;
	45	case TTM_PL_TT:
	46	return RADEON_GEM_DOMAIN_GTT;
	47	case TTM_PL_SYSTEM:
	48	return RADEON_GEM_DOMAIN_CPU;
	49	default:
	50	break;
	51	}
	52	return 0;
	53	}
	54
	55	/**
	56	* radeon_bo_reserve - reserve bo
	57	* @bo: bo structure
	58	* @no_wait: don't sleep while trying to reserve (return -EBUSY)
	59	*
	60	* Returns:
	61	* -EBUSY: buffer is busy and @no_wait is true
	62	* -ERESTART: A wait for the buffer to become unreserved was interrupted by
	63	* a signal. Release all buffer reservations and return to user-space.
	64	*/
	65	static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait)
	66	{
	67	int r;
	68
	69	retry:
	70	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0);
	71	if (unlikely(r != 0)) {
	72	if (r == -ERESTART)
	73	goto retry;
	74	dev_err(bo->rdev->dev, "%p reserve failed\n", bo);
	75	return r;
	76	}
	77	return 0;
	78	}
	79
	80	static inline void radeon_bo_unreserve(struct radeon_bo *bo)
	81	{
	82	ttm_bo_unreserve(&bo->tbo);
	83	}
	84
	85	/**
	86	* radeon_bo_gpu_offset - return GPU offset of bo
	87	* @bo: radeon object for which we query the offset
	88	*
	89	* Returns current GPU offset of the object.
	90	*
	91	* Note: object should either be pinned or reserved when calling this
	92	* function, it might be usefull to add check for this for debugging.
	93	*/
	94	static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
	95	{
	96	return bo->tbo.offset;
	97	}
98
99	static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
100	{
101	return bo->tbo.num_pages << PAGE_SHIFT;
102	}
103
104	static inline bool radeon_bo_is_reserved(struct radeon_bo *bo)
105	{
106	return !!atomic_read(&bo->tbo.reserved);
107	}
108
109	/**
110	* radeon_bo_mmap_offset - return mmap offset of bo
111	* @bo: radeon object for which we query the offset
112	*
113	* Returns mmap offset of the object.
114	*
115	* Note: addr_space_offset is constant after ttm bo init thus isn't protected
116	* by any lock.
771fe6b9	117	*/
4c788679 JG	118	static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
	119	{
	120	return bo->tbo.addr_space_offset;
	121	}
	122
	123	static inline int radeon_bo_wait(struct radeon_bo bo, u32 mem_type,
	124	bool no_wait)
	125	{
	126	int r;
	127
	128	retry:
	129	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0);
	130	if (unlikely(r != 0)) {
	131	if (r == -ERESTART)
	132	goto retry;
	133	dev_err(bo->rdev->dev, "%p reserve failed for wait\n", bo);
	134	return r;
	135	}
	136	spin_lock(&bo->tbo.lock);
	137	if (mem_type)
	138	*mem_type = bo->tbo.mem.mem_type;
	139	if (bo->tbo.sync_obj)
	140	r = ttm_bo_wait(&bo->tbo, true, true, no_wait);
	141	spin_unlock(&bo->tbo.lock);
	142	ttm_bo_unreserve(&bo->tbo);
	143	if (unlikely(r == -ERESTART))
	144	goto retry;
	145	return r;
	146	}
	147
	148	extern int radeon_bo_create(struct radeon_device *rdev,
	149	struct drm_gem_object *gobj, unsigned long size,
	150	bool kernel, u32 domain,
	151	struct radeon_bo **bo_ptr);
	152	extern int radeon_bo_kmap(struct radeon_bo bo, void *ptr);
	153	extern void radeon_bo_kunmap(struct radeon_bo *bo);
	154	extern void radeon_bo_unref(struct radeon_bo **bo);
	155	extern int radeon_bo_pin(struct radeon_bo bo, u32 domain, u64 gpu_addr);
	156	extern int radeon_bo_unpin(struct radeon_bo *bo);
	157	extern int radeon_bo_evict_vram(struct radeon_device *rdev);
	158	extern void radeon_bo_force_delete(struct radeon_device *rdev);
	159	extern int radeon_bo_init(struct radeon_device *rdev);
	160	extern void radeon_bo_fini(struct radeon_device *rdev);
	161	extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
	162	struct list_head *head);
	163	extern int radeon_bo_list_reserve(struct list_head *head);
	164	extern void radeon_bo_list_unreserve(struct list_head *head);
	165	extern int radeon_bo_list_validate(struct list_head head, void fence);
	166	extern void radeon_bo_list_unvalidate(struct list_head head, void fence);
	167	extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
	168	struct vm_area_struct *vma);
	169	extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
	170	u32 tiling_flags, u32 pitch);
	171	extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
	172	u32 tiling_flags, u32 pitch);
	173	extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
	174	bool force_drop);
	175	extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
	176	struct ttm_mem_reg *mem);
	177	extern void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
550e2d92	178	extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
771fe6b9	179	#endif