1/*
2 * Copyright �� 2007 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#ifdef HAVE_CONFIG_H
29#include "config.h"
30#endif
31
32#include <string.h>
33#include <stdlib.h>
34#include <stdint.h>
35#include <assert.h>
36#include <errno.h>
37#include <drm.h>
38#include <i915_drm.h>
39#include "intel_bufmgr.h"
40#include "intel_bufmgr_priv.h"
41
42/** @file intel_bufmgr.c
43 *
44 * Convenience functions for buffer management methods.
45 */
46
47drm_intel_bo *
48drm_intel_bo_alloc(drm_intel_bufmgr *bufmgr, const char *name,
49		   unsigned long size, unsigned int alignment)
50{
51   return bufmgr->bo_alloc(bufmgr, name, size, alignment);
52}
53
54drm_intel_bo *
55drm_intel_bo_alloc_for_render(drm_intel_bufmgr *bufmgr, const char *name,
56			      unsigned long size, unsigned int alignment)
57{
58   return bufmgr->bo_alloc_for_render(bufmgr, name, size, alignment);
59}
60
61void
62drm_intel_bo_reference(drm_intel_bo *bo)
63{
64   bo->bufmgr->bo_reference(bo);
65}
66
67void
68drm_intel_bo_unreference(drm_intel_bo *bo)
69{
70   if (bo == NULL)
71      return;
72
73   bo->bufmgr->bo_unreference(bo);
74}
75
76int
77drm_intel_bo_map(drm_intel_bo *buf, int write_enable)
78{
79   return buf->bufmgr->bo_map(buf, write_enable);
80}
81
82int
83drm_intel_bo_unmap(drm_intel_bo *buf)
84{
85   return buf->bufmgr->bo_unmap(buf);
86}
87
88int
89drm_intel_bo_subdata(drm_intel_bo *bo, unsigned long offset,
90		     unsigned long size, const void *data)
91{
92   int ret;
93
94   if (bo->bufmgr->bo_subdata)
95      return bo->bufmgr->bo_subdata(bo, offset, size, data);
96   if (size == 0 || data == NULL)
97      return 0;
98
99   ret = drm_intel_bo_map(bo, 1);
100   if (ret)
101       return ret;
102   memcpy((unsigned char *)bo->virtual + offset, data, size);
103   drm_intel_bo_unmap(bo);
104   return 0;
105}
106
107int
108drm_intel_bo_get_subdata(drm_intel_bo *bo, unsigned long offset,
109			 unsigned long size, void *data)
110{
111   int ret;
112   if (bo->bufmgr->bo_subdata)
113      return bo->bufmgr->bo_get_subdata(bo, offset, size, data);
114
115   if (size == 0 || data == NULL)
116      return 0;
117
118   ret = drm_intel_bo_map(bo, 0);
119   if (ret)
120       return ret;
121   memcpy(data, (unsigned char *)bo->virtual + offset, size);
122   drm_intel_bo_unmap(bo);
123   return 0;
124}
125
126void
127drm_intel_bo_wait_rendering(drm_intel_bo *bo)
128{
129   bo->bufmgr->bo_wait_rendering(bo);
130}
131
132void
133drm_intel_bufmgr_destroy(drm_intel_bufmgr *bufmgr)
134{
135   bufmgr->destroy(bufmgr);
136}
137
138int
139drm_intel_bo_exec(drm_intel_bo *bo, int used,
140		  drm_clip_rect_t *cliprects, int num_cliprects,
141		  int DR4)
142{
143   return bo->bufmgr->bo_exec(bo, used, cliprects, num_cliprects, DR4);
144}
145
146void
147drm_intel_bufmgr_set_debug(drm_intel_bufmgr *bufmgr, int enable_debug)
148{
149   bufmgr->debug = enable_debug;
150}
151
152int
153drm_intel_bufmgr_check_aperture_space(drm_intel_bo **bo_array, int count)
154{
155	return bo_array[0]->bufmgr->check_aperture_space(bo_array, count);
156}
157
158int
159drm_intel_bo_flink(drm_intel_bo *bo, uint32_t *name)
160{
161    if (bo->bufmgr->bo_flink)
162	return bo->bufmgr->bo_flink(bo, name);
163
164    return -ENODEV;
165}
166
167int
168drm_intel_bo_emit_reloc(drm_intel_bo *bo, uint32_t offset,
169			drm_intel_bo *target_bo, uint32_t target_offset,
170			uint32_t read_domains, uint32_t write_domain)
171{
172	return bo->bufmgr->bo_emit_reloc(bo, offset,
173					 target_bo, target_offset,
174					 read_domains, write_domain);
175}
176
177int
178drm_intel_bo_pin(drm_intel_bo *bo, uint32_t alignment)
179{
180    if (bo->bufmgr->bo_pin)
181	return bo->bufmgr->bo_pin(bo, alignment);
182
183    return -ENODEV;
184}
185
186int
187drm_intel_bo_unpin(drm_intel_bo *bo)
188{
189    if (bo->bufmgr->bo_unpin)
190	return bo->bufmgr->bo_unpin(bo);
191
192    return -ENODEV;
193}
194
195int drm_intel_bo_set_tiling(drm_intel_bo *bo, uint32_t *tiling_mode,
196			    uint32_t stride)
197{
198    if (bo->bufmgr->bo_set_tiling)
199	return bo->bufmgr->bo_set_tiling(bo, tiling_mode, stride);
200
201    *tiling_mode = I915_TILING_NONE;
202    return 0;
203}
204
205int drm_intel_bo_get_tiling(drm_intel_bo *bo, uint32_t *tiling_mode,
206			    uint32_t *swizzle_mode)
207{
208    if (bo->bufmgr->bo_get_tiling)
209	return bo->bufmgr->bo_get_tiling(bo, tiling_mode, swizzle_mode);
210
211    *tiling_mode = I915_TILING_NONE;
212    *swizzle_mode = I915_BIT_6_SWIZZLE_NONE;
213    return 0;
214}
215
216int drm_intel_bo_disable_reuse(drm_intel_bo *bo)
217{
218	if (bo->bufmgr->bo_disable_reuse)
219		return bo->bufmgr->bo_disable_reuse(bo);
220	return 0;
221}
222
223int
224drm_intel_get_pipe_from_crtc_id (drm_intel_bufmgr *bufmgr, int crtc_id)
225{
226	if (bufmgr->get_pipe_from_crtc_id)
227		return bufmgr->get_pipe_from_crtc_id(bufmgr, crtc_id);
228	return -1;
229}
230
231