intel_bufmgr.h revision 22944501 
1/*
2 * Copyright © 2008 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Eric Anholt <eric@anholt.net>
25 *
26 */
27
28/**
29 * @file intel_bufmgr.h
30 *
31 * Public definitions of Intel-specific bufmgr functions.
32 */
33
34#ifndef INTEL_BUFMGR_H
35#define INTEL_BUFMGR_H
36
37#include <stdint.h>
38
39typedef struct _drm_intel_bufmgr drm_intel_bufmgr;
40typedef struct _drm_intel_bo drm_intel_bo;
41
42struct _drm_intel_bo {
43	/**
44	 * Size in bytes of the buffer object.
45	 *
46	 * The size may be larger than the size originally requested for the
47	 * allocation, such as being aligned to page size.
48	 */
49	unsigned long size;
50
51	/**
52	 * Alignment requirement for object
53	 *
54	 * Used for GTT mapping & pinning the object.
55	 */
56	unsigned long align;
57
58	/**
59	 * Last seen card virtual address (offset from the beginning of the
60	 * aperture) for the object.  This should be used to fill relocation
61	 * entries when calling drm_intel_bo_emit_reloc()
62	 */
63	unsigned long offset;
64
65	/**
66	 * Virtual address for accessing the buffer data.  Only valid while
67	 * mapped.
68	 */
69	void *virtual;
70
71	/** Buffer manager context associated with this buffer object */
72	drm_intel_bufmgr *bufmgr;
73
74	/**
75	 * MM-specific handle for accessing object
76	 */
77	int handle;
78};
79
80#define BO_ALLOC_FOR_RENDER (1<<0)
81
82drm_intel_bo *drm_intel_bo_alloc(drm_intel_bufmgr *bufmgr, const char *name,
83				 unsigned long size, unsigned int alignment);
84drm_intel_bo *drm_intel_bo_alloc_for_render(drm_intel_bufmgr *bufmgr,
85					    const char *name,
86					    unsigned long size,
87					    unsigned int alignment);
88drm_intel_bo *drm_intel_bo_alloc_tiled(drm_intel_bufmgr *bufmgr,
89				       const char *name,
90				       int x, int y, int cpp,
91				       uint32_t *tiling_mode,
92				       unsigned long *pitch,
93				       unsigned long flags);
94void drm_intel_bo_reference(drm_intel_bo *bo);
95void drm_intel_bo_unreference(drm_intel_bo *bo);
96int drm_intel_bo_map(drm_intel_bo *bo, int write_enable);
97int drm_intel_bo_unmap(drm_intel_bo *bo);
98
99int drm_intel_bo_subdata(drm_intel_bo *bo, unsigned long offset,
100			 unsigned long size, const void *data);
101int drm_intel_bo_get_subdata(drm_intel_bo *bo, unsigned long offset,
102			     unsigned long size, void *data);
103void drm_intel_bo_wait_rendering(drm_intel_bo *bo);
104
105void drm_intel_bufmgr_set_debug(drm_intel_bufmgr *bufmgr, int enable_debug);
106void drm_intel_bufmgr_destroy(drm_intel_bufmgr *bufmgr);
107int drm_intel_bo_exec(drm_intel_bo *bo, int used,
108		      drm_clip_rect_t * cliprects, int num_cliprects, int DR4);
109int drm_intel_bufmgr_check_aperture_space(drm_intel_bo ** bo_array, int count);
110
111int drm_intel_bo_emit_reloc(drm_intel_bo *bo, uint32_t offset,
112			    drm_intel_bo *target_bo, uint32_t target_offset,
113			    uint32_t read_domains, uint32_t write_domain);
114int drm_intel_bo_emit_reloc_fence(drm_intel_bo *bo, uint32_t offset,
115				  drm_intel_bo *target_bo,
116				  uint32_t target_offset,
117				  uint32_t read_domains, uint32_t write_domain);
118int drm_intel_bo_pin(drm_intel_bo *bo, uint32_t alignment);
119int drm_intel_bo_unpin(drm_intel_bo *bo);
120int drm_intel_bo_set_tiling(drm_intel_bo *bo, uint32_t * tiling_mode,
121			    uint32_t stride);
122int drm_intel_bo_get_tiling(drm_intel_bo *bo, uint32_t * tiling_mode,
123			    uint32_t * swizzle_mode);
124int drm_intel_bo_flink(drm_intel_bo *bo, uint32_t * name);
125int drm_intel_bo_busy(drm_intel_bo *bo);
126int drm_intel_bo_madvise(drm_intel_bo *bo, int madv);
127
128int drm_intel_bo_disable_reuse(drm_intel_bo *bo);
129int drm_intel_bo_references(drm_intel_bo *bo, drm_intel_bo *target_bo);
130
131/* drm_intel_bufmgr_gem.c */
132drm_intel_bufmgr *drm_intel_bufmgr_gem_init(int fd, int batch_size);
133drm_intel_bo *drm_intel_bo_gem_create_from_name(drm_intel_bufmgr *bufmgr,
134						const char *name,
135						unsigned int handle);
136void drm_intel_bufmgr_gem_enable_reuse(drm_intel_bufmgr *bufmgr);
137void drm_intel_bufmgr_gem_enable_fenced_relocs(drm_intel_bufmgr *bufmgr);
138int drm_intel_gem_bo_map_gtt(drm_intel_bo *bo);
139int drm_intel_gem_bo_unmap_gtt(drm_intel_bo *bo);
140void drm_intel_gem_bo_start_gtt_access(drm_intel_bo *bo, int write_enable);
141
142int drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id);
143
144/* drm_intel_bufmgr_fake.c */
145drm_intel_bufmgr *drm_intel_bufmgr_fake_init(int fd,
146					     unsigned long low_offset,
147					     void *low_virtual,
148					     unsigned long size,
149					     volatile unsigned int
150					     *last_dispatch);
151void drm_intel_bufmgr_fake_set_last_dispatch(drm_intel_bufmgr *bufmgr,
152					     volatile unsigned int
153					     *last_dispatch);
154void drm_intel_bufmgr_fake_set_exec_callback(drm_intel_bufmgr *bufmgr,
155					     int (*exec) (drm_intel_bo *bo,
156							  unsigned int used,
157							  void *priv),
158					     void *priv);
159void drm_intel_bufmgr_fake_set_fence_callback(drm_intel_bufmgr *bufmgr,
160					      unsigned int (*emit) (void *priv),
161					      void (*wait) (unsigned int fence,
162							    void *priv),
163					      void *priv);
164drm_intel_bo *drm_intel_bo_fake_alloc_static(drm_intel_bufmgr *bufmgr,
165					     const char *name,
166					     unsigned long offset,
167					     unsigned long size, void *virtual);
168void drm_intel_bo_fake_disable_backing_store(drm_intel_bo *bo,
169					     void (*invalidate_cb) (drm_intel_bo
170								    * bo,
171								    void *ptr),
172					     void *ptr);
173
174void drm_intel_bufmgr_fake_contended_lock_take(drm_intel_bufmgr *bufmgr);
175void drm_intel_bufmgr_fake_evict_all(drm_intel_bufmgr *bufmgr);
176
177/** @{ Compatibility defines to keep old code building despite the symbol rename
178 * from dri_* to drm_intel_*
179 */
180#define dri_bo drm_intel_bo
181#define dri_bufmgr drm_intel_bufmgr
182#define dri_bo_alloc drm_intel_bo_alloc
183#define dri_bo_reference drm_intel_bo_reference
184#define dri_bo_unreference drm_intel_bo_unreference
185#define dri_bo_map drm_intel_bo_map
186#define dri_bo_unmap drm_intel_bo_unmap
187#define dri_bo_subdata drm_intel_bo_subdata
188#define dri_bo_get_subdata drm_intel_bo_get_subdata
189#define dri_bo_wait_rendering drm_intel_bo_wait_rendering
190#define dri_bufmgr_set_debug drm_intel_bufmgr_set_debug
191#define dri_bufmgr_destroy drm_intel_bufmgr_destroy
192#define dri_bo_exec drm_intel_bo_exec
193#define dri_bufmgr_check_aperture_space drm_intel_bufmgr_check_aperture_space
194#define dri_bo_emit_reloc(reloc_bo, read, write, target_offset,		\
195			  reloc_offset, target_bo)			\
196	drm_intel_bo_emit_reloc(reloc_bo, reloc_offset,			\
197				target_bo, target_offset,		\
198				read, write);
199#define dri_bo_pin drm_intel_bo_pin
200#define dri_bo_unpin drm_intel_bo_unpin
201#define dri_bo_get_tiling drm_intel_bo_get_tiling
202#define dri_bo_set_tiling(bo, mode) drm_intel_bo_set_tiling(bo, mode, 0)
203#define dri_bo_flink drm_intel_bo_flink
204#define intel_bufmgr_gem_init drm_intel_bufmgr_gem_init
205#define intel_bo_gem_create_from_name drm_intel_bo_gem_create_from_name
206#define intel_bufmgr_gem_enable_reuse drm_intel_bufmgr_gem_enable_reuse
207#define intel_bufmgr_fake_init drm_intel_bufmgr_fake_init
208#define intel_bufmgr_fake_set_last_dispatch drm_intel_bufmgr_fake_set_last_dispatch
209#define intel_bufmgr_fake_set_exec_callback drm_intel_bufmgr_fake_set_exec_callback
210#define intel_bufmgr_fake_set_fence_callback drm_intel_bufmgr_fake_set_fence_callback
211#define intel_bo_fake_alloc_static drm_intel_bo_fake_alloc_static
212#define intel_bo_fake_disable_backing_store drm_intel_bo_fake_disable_backing_store
213#define intel_bufmgr_fake_contended_lock_take drm_intel_bufmgr_fake_contended_lock_take
214#define intel_bufmgr_fake_evict_all drm_intel_bufmgr_fake_evict_all
215
216/** @{ */
217
218#endif /* INTEL_BUFMGR_H */
219