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1221 serge 1
/*
2
 * Copyright 2008 Red Hat Inc.
3
 * Copyright 2009 Jerome Glisse.
4
 *
5
 * Permission is hereby granted, free of charge, to any person obtaining a
6
 * copy of this software and associated documentation files (the "Software"),
7
 * to deal in the Software without restriction, including without limitation
8
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9
 * and/or sell copies of the Software, and to permit persons to whom the
10
 * Software is furnished to do so, subject to the following conditions:
11
 *
12
 * The above copyright notice and this permission notice shall be included in
13
 * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21
 * OTHER DEALINGS IN THE SOFTWARE.
22
 *
23
 * Authors:
24
 *    Dave Airlie
25
 *    Jerome Glisse 
26
 */
27
#include "drmP.h"
28
#include "drm.h"
29
#include "radeon.h"
30
#include "radeon_drm.h"
31
 
32
#if __OS_HAS_AGP
33
 
34
struct radeon_agpmode_quirk {
35
	u32 hostbridge_vendor;
36
	u32 hostbridge_device;
37
	u32 chip_vendor;
38
	u32 chip_device;
39
	u32 subsys_vendor;
40
	u32 subsys_device;
41
	u32 default_mode;
42
};
43
 
44
static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
45
	/* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
46
	{ PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
47
	/* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
48
	{ PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
49
	/* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
50
	{ PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
51
		0x148c, 0x2073, 4},
52
	/* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
53
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
54
		PCI_VENDOR_ID_IBM, 0x052f, 1},
55
	/* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
56
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
57
		PCI_VENDOR_ID_IBM, 0x0550, 1},
58
	/* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
59
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
60
		PCI_VENDOR_ID_IBM, 0x0530, 1},
61
	/* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
62
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
63
		PCI_VENDOR_ID_IBM, 0x054f, 2},
64
	/* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
65
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
66
		PCI_VENDOR_ID_SONY, 0x816b, 2},
67
	/* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
68
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
69
		PCI_VENDOR_ID_SONY, 0x8195, 8},
70
	/* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
71
	{ PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
72
		PCI_VENDOR_ID_DELL, 0x00e3, 2},
73
	/* Intel 82852/82855 host bridge / Mobility FireGL 9000 R250 Needs AGPMode 1 (lp #296617) */
74
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
75
		PCI_VENDOR_ID_DELL, 0x0149, 1},
76
	/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
77
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
78
		0x1025, 0x0061, 1},
79
	/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
80
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
81
		0x1025, 0x0064, 1},
82
	/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
83
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
84
		PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
85
	/* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
86
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
87
		0x10cf, 0x127f, 1},
88
	/* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
89
	{ 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
90
		0x1787, 0x5960, 4},
91
	/* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
92
	{ PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
93
		0x17af, 0x2020, 4},
94
	/* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
95
	{ PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
96
		PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
97
	/* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
98
	{ PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
99
		PCI_VENDOR_ID_ATI, 0x013a, 2},
100
	/* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
101
	{ PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
102
		PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
103
	/* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
104
	{ PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
105
		PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
106
	/* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
107
	{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
108
		0x174b, 0x7149, 4},
109
	/* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
110
	{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
111
		0x1462, 0x0380, 4},
112
	/* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
113
	{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
114
		0x148c, 0x2073, 4},
115
	/* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
116
	{ PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
117
		PCI_VENDOR_ID_SONY, 0x8175, 1},
118
	/* HP Host Bridge / R300 [FireGL X1] Needs AGPMode 2 (fdo #7770) */
119
	{ PCI_VENDOR_ID_HP, 0x122e, PCI_VENDOR_ID_ATI, 0x4e47,
120
		PCI_VENDOR_ID_ATI, 0x0152, 2},
121
	{ 0, 0, 0, 0, 0, 0, 0 },
122
};
123
#endif
124
 
125
int radeon_agp_init(struct radeon_device *rdev)
126
{
127
#if __OS_HAS_AGP
128
	struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
129
	struct drm_agp_mode mode;
130
	struct drm_agp_info info;
131
	uint32_t agp_status;
132
	int default_mode;
133
	bool is_v3;
134
	int ret;
135
 
136
	/* Acquire AGP. */
137
		ret = drm_agp_acquire(rdev->ddev);
138
		if (ret) {
139
			DRM_ERROR("Unable to acquire AGP: %d\n", ret);
140
			return ret;
141
		}
142
 
143
	ret = drm_agp_info(rdev->ddev, &info);
144
	if (ret) {
1403 serge 145
		drm_agp_release(rdev->ddev);
1221 serge 146
		DRM_ERROR("Unable to get AGP info: %d\n", ret);
147
		return ret;
148
	}
1403 serge 149
 
150
	if (rdev->ddev->agp->agp_info.aper_size < 32) {
151
		drm_agp_release(rdev->ddev);
152
		dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
153
			"need at least 32M, disabling AGP\n",
154
			rdev->ddev->agp->agp_info.aper_size);
155
		return -EINVAL;
156
	}
157
 
1221 serge 158
	mode.mode = info.mode;
1963 serge 159
	/* chips with the agp to pcie bridge don't have the AGP_STATUS register
160
	 * Just use the whatever mode the host sets up.
161
	 */
162
	if (rdev->family <= CHIP_RV350)
1221 serge 163
	agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
1963 serge 164
	else
165
		agp_status = mode.mode;
1221 serge 166
	is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
167
 
168
	if (is_v3) {
169
		default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
170
	} else {
171
		if (agp_status & RADEON_AGP_4X_MODE) {
172
			default_mode = 4;
173
		} else if (agp_status & RADEON_AGP_2X_MODE) {
174
			default_mode = 2;
175
		} else {
176
			default_mode = 1;
177
		}
178
	}
179
 
180
	/* Apply AGPMode Quirks */
181
	while (p && p->chip_device != 0) {
182
		if (info.id_vendor == p->hostbridge_vendor &&
183
		    info.id_device == p->hostbridge_device &&
184
		    rdev->pdev->vendor == p->chip_vendor &&
185
		    rdev->pdev->device == p->chip_device &&
186
		    rdev->pdev->subsystem_vendor == p->subsys_vendor &&
187
		    rdev->pdev->subsystem_device == p->subsys_device) {
188
			default_mode = p->default_mode;
189
		}
190
		++p;
191
	}
192
 
193
	if (radeon_agpmode > 0) {
194
		if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
195
		    (radeon_agpmode > (is_v3 ? 8 : 4)) ||
196
		    (radeon_agpmode & (radeon_agpmode - 1))) {
197
			DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
198
				  radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
199
				  default_mode);
200
			radeon_agpmode = default_mode;
201
		} else {
202
			DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
203
		}
204
	} else {
205
		radeon_agpmode = default_mode;
206
	}
207
 
208
	mode.mode &= ~RADEON_AGP_MODE_MASK;
209
	if (is_v3) {
210
		switch (radeon_agpmode) {
211
		case 8:
212
			mode.mode |= RADEON_AGPv3_8X_MODE;
213
			break;
214
		case 4:
215
		default:
216
			mode.mode |= RADEON_AGPv3_4X_MODE;
217
			break;
218
		}
219
	} else {
220
		switch (radeon_agpmode) {
221
		case 4:
222
			mode.mode |= RADEON_AGP_4X_MODE;
223
			break;
224
		case 2:
225
			mode.mode |= RADEON_AGP_2X_MODE;
226
			break;
227
		case 1:
228
		default:
229
			mode.mode |= RADEON_AGP_1X_MODE;
230
			break;
231
		}
232
	}
233
 
234
	mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
235
	ret = drm_agp_enable(rdev->ddev, mode);
236
	if (ret) {
237
		DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
1403 serge 238
		drm_agp_release(rdev->ddev);
1221 serge 239
		return ret;
240
	}
241
 
242
	rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
243
	rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
1430 serge 244
	rdev->mc.gtt_start = rdev->mc.agp_base;
245
	rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
246
	dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
247
		rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
1221 serge 248
 
249
	/* workaround some hw issues */
250
	if (rdev->family < CHIP_R200) {
251
		WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
252
	}
253
	return 0;
254
#else
1430 serge 255
    return -1;
1221 serge 256
#endif
257
}
258
 
1313 serge 259
void radeon_agp_resume(struct radeon_device *rdev)
260
{
261
#if __OS_HAS_AGP
262
	int r;
263
	if (rdev->flags & RADEON_IS_AGP) {
264
		r = radeon_agp_init(rdev);
265
		if (r)
266
			dev_warn(rdev->dev, "radeon AGP reinit failed\n");
267
	}
268
#endif
269
}
270
 
1221 serge 271
void radeon_agp_fini(struct radeon_device *rdev)
272
{
273
#if __OS_HAS_AGP
274
		if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
275
			drm_agp_release(rdev->ddev);
276
	}
277
#endif
278
}
1963 serge 279
 
280
void radeon_agp_suspend(struct radeon_device *rdev)
281
{
282
	radeon_agp_fini(rdev);
283
}