summaryrefslogtreecommitdiff
path: root/src/gallium/winsys/r600/drm/r600_drm.c
blob: 0c9f6efe60c37a46e994b072bd09d163c9cbe71c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
/*
 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
 *
 * 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
 * on 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 AUTHOR(S) AND/OR THEIR 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:
 *      Jerome Glisse
 *      Corbin Simpson <MostAwesomeDude@gmail.com>
 *      Joakim Sindholt <opensource@zhasha.com>
 */
#include <stdio.h>
#include <errno.h>
#include <sys/ioctl.h>
#include "util/u_inlines.h"
#include "util/u_debug.h"
#include <pipebuffer/pb_bufmgr.h>
#include "r600.h"
#include "r600_priv.h"
#include "r600_drm_public.h"
#include "xf86drm.h"
#include "radeon_drm.h"

#ifndef RADEON_INFO_TILING_CONFIG
#define RADEON_INFO_TILING_CONFIG 0x6
#endif

static struct radeon *radeon_new(int fd, unsigned device);

static int radeon_get_device(struct radeon *radeon)
{
	struct drm_radeon_info info;
	int r;

	radeon->device = 0;
	info.request = RADEON_INFO_DEVICE_ID;
	info.value = (uintptr_t)&radeon->device;
	r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
			sizeof(struct drm_radeon_info));
	return r;
}

static int radeon_drm_get_tiling(struct radeon *radeon)
{
	struct drm_radeon_info info;
	int r;
	uint32_t tiling_config;

	info.request = RADEON_INFO_TILING_CONFIG;
	info.value = (uintptr_t)&tiling_config;
	r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
				sizeof(struct drm_radeon_info));

	if (r)
		return 0;

	switch ((tiling_config & 0xe) >> 1) {
	case 0:
		radeon->tiling_info.num_channels = 1;
		break;
	case 1:
		radeon->tiling_info.num_channels = 2;
		break;
	case 2:
		radeon->tiling_info.num_channels = 4;
		break;
	case 3:
		radeon->tiling_info.num_channels = 8;
		break;
	default:
		return -EINVAL;
	}

	switch ((tiling_config & 0x30) >> 4) {
	case 0:
		radeon->tiling_info.num_banks = 4;
		break;
	case 1:
		radeon->tiling_info.num_banks = 8;
		break;
	default:
		return -EINVAL;

	}
	switch ((tiling_config & 0xc0) >> 6) {
	case 0:
		radeon->tiling_info.group_bytes = 256;
		break;
	case 1:
		radeon->tiling_info.group_bytes = 512;
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

static int radeon_init_fence(struct radeon *radeon)
{
	radeon->fence = 1;
	radeon->fence_bo = r600_bo(radeon, 4096, 0, 0, 0);
	if (radeon->fence_bo == NULL) {
		return -ENOMEM;
	}
	radeon->cfence = r600_bo_map(radeon, radeon->fence_bo, PB_USAGE_UNSYNCHRONIZED, NULL);
	*radeon->cfence = 0;
	return 0;
}

static struct radeon *radeon_new(int fd, unsigned device)
{
	struct radeon *radeon;
	int r;

	radeon = calloc(1, sizeof(*radeon));
	if (radeon == NULL) {
		return NULL;
	}
	radeon->fd = fd;
	radeon->device = device;
	radeon->refcount = 1;
	if (fd >= 0) {
		r = radeon_get_device(radeon);
		if (r) {
			fprintf(stderr, "Failed to get device id\n");
			return radeon_decref(radeon);
		}
	}
	radeon->family = radeon_family_from_device(radeon->device);
	if (radeon->family == CHIP_UNKNOWN) {
		fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
		return radeon_decref(radeon);
	}
	/* setup class */
	switch (radeon->family) {
	case CHIP_R600:
	case CHIP_RV610:
	case CHIP_RV630:
	case CHIP_RV670:
	case CHIP_RV620:
	case CHIP_RV635:
	case CHIP_RS780:
	case CHIP_RS880:
		radeon->chip_class = R600;
		/* set default group bytes, overridden by tiling info ioctl */
		radeon->tiling_info.group_bytes = 256;
		break;
	case CHIP_RV770:
	case CHIP_RV730:
	case CHIP_RV710:
	case CHIP_RV740:
		radeon->chip_class = R700;
		/* set default group bytes, overridden by tiling info ioctl */
		radeon->tiling_info.group_bytes = 256;
		break;
	case CHIP_CEDAR:
	case CHIP_REDWOOD:
	case CHIP_JUNIPER:
	case CHIP_CYPRESS:
	case CHIP_HEMLOCK:
	case CHIP_PALM:
	case CHIP_BARTS:
	case CHIP_TURKS:
	case CHIP_CAICOS:
		radeon->chip_class = EVERGREEN;
		/* set default group bytes, overridden by tiling info ioctl */
		radeon->tiling_info.group_bytes = 512;
		break;
	default:
		fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
			__func__, radeon->device);
		break;
	}

	if (radeon->chip_class == R600 || radeon->chip_class == R700) {
		if (radeon_drm_get_tiling(radeon))
			return NULL;
	}
	radeon->bomgr = r600_bomgr_create(radeon, 1000000);
	if (radeon->bomgr == NULL) {
		return NULL;
	}
	r = radeon_init_fence(radeon);
	if (r) {
		radeon_decref(radeon);
		return NULL;
	}
	return radeon;
}

struct radeon *r600_drm_winsys_create(int drmfd)
{
	return radeon_new(drmfd, 0);
}

struct radeon *radeon_decref(struct radeon *radeon)
{
	if (radeon == NULL)
		return NULL;
	if (--radeon->refcount > 0) {
		return NULL;
	}

	if (radeon->fence_bo) {
		r600_bo_reference(radeon, &radeon->fence_bo, NULL);
	}

	if (radeon->bomgr)
		r600_bomgr_destroy(radeon->bomgr);

	free(radeon);
	return NULL;
}