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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
 */
3192 Serge 27
#include 
1221 serge 28
#include "radeon.h"
3192 Serge 29
#include 
1221 serge 30
 
6104 serge 31
#if IS_ENABLED(CONFIG_AGP)
1221 serge 32
 
33
struct radeon_agpmode_quirk {
34
	u32 hostbridge_vendor;
35
	u32 hostbridge_device;
36
	u32 chip_vendor;
37
	u32 chip_device;
38
	u32 subsys_vendor;
39
	u32 subsys_device;
40
	u32 default_mode;
41
};
42
 
43
static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
44
	/* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
45
	{ PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
46
	/* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
47
	{ PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
48
	/* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
49
	{ PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
50
		0x148c, 0x2073, 4},
51
	/* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
52
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
53
		PCI_VENDOR_ID_IBM, 0x052f, 1},
54
	/* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
55
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
56
		PCI_VENDOR_ID_IBM, 0x0550, 1},
6104 serge 57
	/* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
58
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
59
		PCI_VENDOR_ID_IBM, 0x054d, 1},
1221 serge 60
	/* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
61
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
62
		PCI_VENDOR_ID_IBM, 0x0530, 1},
63
	/* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
64
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
65
		PCI_VENDOR_ID_IBM, 0x054f, 2},
66
	/* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
67
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
68
		PCI_VENDOR_ID_SONY, 0x816b, 2},
69
	/* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
70
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
71
		PCI_VENDOR_ID_SONY, 0x8195, 8},
72
	/* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
73
	{ PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
74
		PCI_VENDOR_ID_DELL, 0x00e3, 2},
3192 Serge 75
	/* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
1221 serge 76
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
77
		PCI_VENDOR_ID_DELL, 0x0149, 1},
3192 Serge 78
	/* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
79
	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
80
		PCI_VENDOR_ID_IBM, 0x0531, 1},
1221 serge 81
	/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
82
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
83
		0x1025, 0x0061, 1},
84
	/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
85
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
86
		0x1025, 0x0064, 1},
87
	/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
88
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
89
		PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
90
	/* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
91
	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
92
		0x10cf, 0x127f, 1},
93
	/* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
94
	{ 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
95
		0x1787, 0x5960, 4},
96
	/* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
97
	{ PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
98
		0x17af, 0x2020, 4},
99
	/* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
100
	{ PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
101
		PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
102
	/* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
103
	{ PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
104
		PCI_VENDOR_ID_ATI, 0x013a, 2},
105
	/* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
106
	{ PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
107
		PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
108
	/* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
109
	{ PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
110
		PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
111
	/* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
112
	{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
113
		0x174b, 0x7149, 4},
114
	/* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
115
	{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
116
		0x1462, 0x0380, 4},
117
	/* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
118
	{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
119
		0x148c, 0x2073, 4},
120
	/* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
121
	{ PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
122
		PCI_VENDOR_ID_SONY, 0x8175, 1},
123
	{ 0, 0, 0, 0, 0, 0, 0 },
124
};
125
#endif
126
 
127
int radeon_agp_init(struct radeon_device *rdev)
128
{
6104 serge 129
#if IS_ENABLED(CONFIG_AGP)
1221 serge 130
	struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
131
	struct drm_agp_mode mode;
132
	struct drm_agp_info info;
133
	uint32_t agp_status;
134
	int default_mode;
135
	bool is_v3;
136
	int ret;
137
 
138
	/* Acquire AGP. */
6104 serge 139
	ret = drm_agp_acquire(rdev->ddev);
140
	if (ret) {
141
		DRM_ERROR("Unable to acquire AGP: %d\n", ret);
142
		return ret;
143
	}
1221 serge 144
 
145
	ret = drm_agp_info(rdev->ddev, &info);
146
	if (ret) {
1403 serge 147
		drm_agp_release(rdev->ddev);
1221 serge 148
		DRM_ERROR("Unable to get AGP info: %d\n", ret);
149
		return ret;
150
	}
1403 serge 151
 
152
	if (rdev->ddev->agp->agp_info.aper_size < 32) {
153
		drm_agp_release(rdev->ddev);
154
		dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
155
			"need at least 32M, disabling AGP\n",
156
			rdev->ddev->agp->agp_info.aper_size);
157
		return -EINVAL;
158
	}
159
 
1221 serge 160
	mode.mode = info.mode;
1963 serge 161
	/* chips with the agp to pcie bridge don't have the AGP_STATUS register
162
	 * Just use the whatever mode the host sets up.
163
	 */
164
	if (rdev->family <= CHIP_RV350)
6104 serge 165
		agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
1963 serge 166
	else
167
		agp_status = mode.mode;
1221 serge 168
	is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
169
 
170
	if (is_v3) {
171
		default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
172
	} else {
173
		if (agp_status & RADEON_AGP_4X_MODE) {
174
			default_mode = 4;
175
		} else if (agp_status & RADEON_AGP_2X_MODE) {
176
			default_mode = 2;
177
		} else {
178
			default_mode = 1;
179
		}
180
	}
181
 
182
	/* Apply AGPMode Quirks */
183
	while (p && p->chip_device != 0) {
184
		if (info.id_vendor == p->hostbridge_vendor &&
185
		    info.id_device == p->hostbridge_device &&
186
		    rdev->pdev->vendor == p->chip_vendor &&
187
		    rdev->pdev->device == p->chip_device &&
188
		    rdev->pdev->subsystem_vendor == p->subsys_vendor &&
189
		    rdev->pdev->subsystem_device == p->subsys_device) {
190
			default_mode = p->default_mode;
191
		}
192
		++p;
193
	}
194
 
195
	if (radeon_agpmode > 0) {
196
		if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
197
		    (radeon_agpmode > (is_v3 ? 8 : 4)) ||
198
		    (radeon_agpmode & (radeon_agpmode - 1))) {
199
			DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
200
				  radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
201
				  default_mode);
202
			radeon_agpmode = default_mode;
203
		} else {
204
			DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
205
		}
206
	} else {
207
		radeon_agpmode = default_mode;
208
	}
209
 
210
	mode.mode &= ~RADEON_AGP_MODE_MASK;
211
	if (is_v3) {
212
		switch (radeon_agpmode) {
213
		case 8:
214
			mode.mode |= RADEON_AGPv3_8X_MODE;
215
			break;
216
		case 4:
217
		default:
218
			mode.mode |= RADEON_AGPv3_4X_MODE;
219
			break;
220
		}
221
	} else {
222
		switch (radeon_agpmode) {
223
		case 4:
224
			mode.mode |= RADEON_AGP_4X_MODE;
225
			break;
226
		case 2:
227
			mode.mode |= RADEON_AGP_2X_MODE;
228
			break;
229
		case 1:
230
		default:
231
			mode.mode |= RADEON_AGP_1X_MODE;
232
			break;
233
		}
234
	}
235
 
236
	mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
237
	ret = drm_agp_enable(rdev->ddev, mode);
238
	if (ret) {
239
		DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
1403 serge 240
		drm_agp_release(rdev->ddev);
1221 serge 241
		return ret;
242
	}
243
 
244
	rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
245
	rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
1430 serge 246
	rdev->mc.gtt_start = rdev->mc.agp_base;
247
	rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
248
	dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
249
		rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
1221 serge 250
 
251
	/* workaround some hw issues */
252
	if (rdev->family < CHIP_R200) {
253
		WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
254
	}
255
	return 0;
256
#else
1430 serge 257
    return -1;
1221 serge 258
#endif
259
}
260
 
1313 serge 261
void radeon_agp_resume(struct radeon_device *rdev)
262
{
6104 serge 263
#if IS_ENABLED(CONFIG_AGP)
1313 serge 264
	int r;
265
	if (rdev->flags & RADEON_IS_AGP) {
266
		r = radeon_agp_init(rdev);
267
		if (r)
268
			dev_warn(rdev->dev, "radeon AGP reinit failed\n");
269
	}
270
#endif
271
}
272
 
1221 serge 273
void radeon_agp_fini(struct radeon_device *rdev)
274
{
6104 serge 275
#if IS_ENABLED(CONFIG_AGP)
276
	if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
277
		drm_agp_release(rdev->ddev);
1221 serge 278
	}
279
#endif
280
}
1963 serge 281
 
282
void radeon_agp_suspend(struct radeon_device *rdev)
283
{
284
	radeon_agp_fini(rdev);
285
}