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 <glisse@freedesktop.org>
26 */
27
28 #include <linux/pci.h>
29
30 #include <drm/drm_agpsupport.h>
31 #include <drm/drm_device.h>
32 #include <drm/radeon_drm.h>
33
34 #include "radeon.h"
35
36 #if IS_ENABLED(CONFIG_AGP)
37
38 struct radeon_agpmode_quirk {
39 u32 hostbridge_vendor;
40 u32 hostbridge_device;
41 u32 chip_vendor;
42 u32 chip_device;
43 u32 subsys_vendor;
44 u32 subsys_device;
45 u32 default_mode;
46 };
47
48 static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
49 /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
50 { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
51 /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
52 { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
53 /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
54 { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
55 0x148c, 0x2073, 4},
56 /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
57 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
58 PCI_VENDOR_ID_IBM, 0x052f, 1},
59 /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
60 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
61 PCI_VENDOR_ID_IBM, 0x0550, 1},
62 /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
63 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
64 PCI_VENDOR_ID_IBM, 0x054d, 1},
65 /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
66 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
67 PCI_VENDOR_ID_IBM, 0x0530, 1},
68 /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
69 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
70 PCI_VENDOR_ID_IBM, 0x054f, 2},
71 /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
72 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
73 PCI_VENDOR_ID_SONY, 0x816b, 2},
74 /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
75 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
76 PCI_VENDOR_ID_SONY, 0x8195, 8},
77 /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
78 { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
79 PCI_VENDOR_ID_DELL, 0x00e3, 2},
80 /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
81 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
82 PCI_VENDOR_ID_DELL, 0x0149, 1},
83 /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
84 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
85 PCI_VENDOR_ID_IBM, 0x0531, 1},
86 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
87 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
88 0x1025, 0x0061, 1},
89 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
90 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
91 0x1025, 0x0064, 1},
92 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
93 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
94 PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
95 /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
96 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
97 0x10cf, 0x127f, 1},
98 /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
99 { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
100 0x1787, 0x5960, 4},
101 /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
102 { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
103 0x17af, 0x2020, 4},
104 /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
105 { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
106 PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
107 /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
108 { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
109 PCI_VENDOR_ID_ATI, 0x013a, 2},
110 /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
111 { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
112 PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
113 /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
114 { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
115 PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
116 /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
117 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
118 0x174b, 0x7149, 4},
119 /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
120 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
121 0x1462, 0x0380, 4},
122 /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
123 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
124 0x148c, 0x2073, 4},
125 /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
126 { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
127 PCI_VENDOR_ID_SONY, 0x8175, 1},
128 { 0, 0, 0, 0, 0, 0, 0 },
129 };
130 #endif
131
radeon_agp_init(struct radeon_device * rdev)132 int radeon_agp_init(struct radeon_device *rdev)
133 {
134 #if IS_ENABLED(CONFIG_AGP)
135 struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
136 struct drm_agp_mode mode;
137 struct drm_agp_info info;
138 uint32_t agp_status;
139 int default_mode;
140 bool is_v3;
141 int ret;
142
143 /* Acquire AGP. */
144 ret = drm_agp_acquire(rdev->ddev);
145 if (ret) {
146 DRM_ERROR("Unable to acquire AGP: %d\n", ret);
147 return ret;
148 }
149
150 ret = drm_agp_info(rdev->ddev, &info);
151 if (ret) {
152 drm_agp_release(rdev->ddev);
153 DRM_ERROR("Unable to get AGP info: %d\n", ret);
154 return ret;
155 }
156
157 if (rdev->ddev->agp->agp_info.aper_size < 32) {
158 drm_agp_release(rdev->ddev);
159 dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
160 "need at least 32M, disabling AGP\n",
161 rdev->ddev->agp->agp_info.aper_size);
162 return -EINVAL;
163 }
164
165 mode.mode = info.mode;
166 /* chips with the agp to pcie bridge don't have the AGP_STATUS register
167 * Just use the whatever mode the host sets up.
168 */
169 if (rdev->family <= CHIP_RV350)
170 agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
171 else
172 agp_status = mode.mode;
173 is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
174
175 if (is_v3) {
176 default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
177 } else {
178 if (agp_status & RADEON_AGP_4X_MODE) {
179 default_mode = 4;
180 } else if (agp_status & RADEON_AGP_2X_MODE) {
181 default_mode = 2;
182 } else {
183 default_mode = 1;
184 }
185 }
186
187 /* Apply AGPMode Quirks */
188 while (p && p->chip_device != 0) {
189 if (info.id_vendor == p->hostbridge_vendor &&
190 info.id_device == p->hostbridge_device &&
191 rdev->pdev->vendor == p->chip_vendor &&
192 rdev->pdev->device == p->chip_device &&
193 rdev->pdev->subsystem_vendor == p->subsys_vendor &&
194 rdev->pdev->subsystem_device == p->subsys_device) {
195 default_mode = p->default_mode;
196 }
197 ++p;
198 }
199
200 if (radeon_agpmode > 0) {
201 if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
202 (radeon_agpmode > (is_v3 ? 8 : 4)) ||
203 (radeon_agpmode & (radeon_agpmode - 1))) {
204 DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
205 radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
206 default_mode);
207 radeon_agpmode = default_mode;
208 } else {
209 DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
210 }
211 } else {
212 radeon_agpmode = default_mode;
213 }
214
215 mode.mode &= ~RADEON_AGP_MODE_MASK;
216 if (is_v3) {
217 switch (radeon_agpmode) {
218 case 8:
219 mode.mode |= RADEON_AGPv3_8X_MODE;
220 break;
221 case 4:
222 default:
223 mode.mode |= RADEON_AGPv3_4X_MODE;
224 break;
225 }
226 } else {
227 switch (radeon_agpmode) {
228 case 4:
229 mode.mode |= RADEON_AGP_4X_MODE;
230 break;
231 case 2:
232 mode.mode |= RADEON_AGP_2X_MODE;
233 break;
234 case 1:
235 default:
236 mode.mode |= RADEON_AGP_1X_MODE;
237 break;
238 }
239 }
240
241 mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
242 ret = drm_agp_enable(rdev->ddev, mode);
243 if (ret) {
244 DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
245 drm_agp_release(rdev->ddev);
246 return ret;
247 }
248
249 rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
250 rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
251 rdev->mc.gtt_start = rdev->mc.agp_base;
252 rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
253 dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
254 rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
255
256 /* workaround some hw issues */
257 if (rdev->family < CHIP_R200) {
258 WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
259 }
260 return 0;
261 #else
262 return 0;
263 #endif
264 }
265
radeon_agp_resume(struct radeon_device * rdev)266 void radeon_agp_resume(struct radeon_device *rdev)
267 {
268 #if IS_ENABLED(CONFIG_AGP)
269 int r;
270 if (rdev->flags & RADEON_IS_AGP) {
271 r = radeon_agp_init(rdev);
272 if (r)
273 dev_warn(rdev->dev, "radeon AGP reinit failed\n");
274 }
275 #endif
276 }
277
radeon_agp_fini(struct radeon_device * rdev)278 void radeon_agp_fini(struct radeon_device *rdev)
279 {
280 #if IS_ENABLED(CONFIG_AGP)
281 if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
282 drm_agp_release(rdev->ddev);
283 }
284 #endif
285 }
286
radeon_agp_suspend(struct radeon_device * rdev)287 void radeon_agp_suspend(struct radeon_device *rdev)
288 {
289 radeon_agp_fini(rdev);
290 }
291