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_device.h>
31 #include <drm/radeon_drm.h>
32
33 #include "radeon.h"
34
35 #if IS_ENABLED(CONFIG_AGP)
36
37 struct radeon_agpmode_quirk {
38 u32 hostbridge_vendor;
39 u32 hostbridge_device;
40 u32 chip_vendor;
41 u32 chip_device;
42 u32 subsys_vendor;
43 u32 subsys_device;
44 u32 default_mode;
45 };
46
47 static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
48 /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
49 { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
50 /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
51 { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
52 /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
53 { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
54 0x148c, 0x2073, 4},
55 /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
56 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
57 PCI_VENDOR_ID_IBM, 0x052f, 1},
58 /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
59 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
60 PCI_VENDOR_ID_IBM, 0x0550, 1},
61 /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
62 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
63 PCI_VENDOR_ID_IBM, 0x054d, 1},
64 /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
65 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
66 PCI_VENDOR_ID_IBM, 0x0530, 1},
67 /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
68 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
69 PCI_VENDOR_ID_IBM, 0x054f, 2},
70 /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
71 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
72 PCI_VENDOR_ID_SONY, 0x816b, 2},
73 /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
74 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
75 PCI_VENDOR_ID_SONY, 0x8195, 8},
76 /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
77 { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
78 PCI_VENDOR_ID_DELL, 0x00e3, 2},
79 /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
80 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
81 PCI_VENDOR_ID_DELL, 0x0149, 1},
82 /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
83 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
84 PCI_VENDOR_ID_IBM, 0x0531, 1},
85 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
86 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
87 0x1025, 0x0061, 1},
88 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
89 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
90 0x1025, 0x0064, 1},
91 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
92 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
93 PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
94 /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
95 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
96 0x10cf, 0x127f, 1},
97 /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
98 { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
99 0x1787, 0x5960, 4},
100 /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
101 { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
102 0x17af, 0x2020, 4},
103 /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
104 { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
105 PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
106 /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
107 { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
108 PCI_VENDOR_ID_ATI, 0x013a, 2},
109 /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
110 { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
111 PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
112 /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
113 { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
114 PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
115 /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
116 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
117 0x174b, 0x7149, 4},
118 /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
119 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
120 0x1462, 0x0380, 4},
121 /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
122 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
123 0x148c, 0x2073, 4},
124 /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
125 { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
126 PCI_VENDOR_ID_SONY, 0x8175, 1},
127 { 0, 0, 0, 0, 0, 0, 0 },
128 };
129
radeon_agp_head_init(struct drm_device * dev)130 struct radeon_agp_head *radeon_agp_head_init(struct drm_device *dev)
131 {
132 struct pci_dev *pdev = to_pci_dev(dev->dev);
133 struct radeon_agp_head *head;
134
135 head = kzalloc(sizeof(*head), GFP_KERNEL);
136 if (!head)
137 return NULL;
138 head->bridge = agp_find_bridge(pdev);
139 if (!head->bridge) {
140 head->bridge = agp_backend_acquire(pdev);
141 if (!head->bridge) {
142 kfree(head);
143 return NULL;
144 }
145 agp_copy_info(head->bridge, &head->agp_info);
146 agp_backend_release(head->bridge);
147 } else {
148 agp_copy_info(head->bridge, &head->agp_info);
149 }
150 if (head->agp_info.chipset == NOT_SUPPORTED) {
151 kfree(head);
152 return NULL;
153 }
154 INIT_LIST_HEAD(&head->memory);
155 head->cant_use_aperture = head->agp_info.cant_use_aperture;
156 head->page_mask = head->agp_info.page_mask;
157 head->base = head->agp_info.aper_base;
158
159 return head;
160 }
161
radeon_agp_head_acquire(struct radeon_device * rdev)162 static int radeon_agp_head_acquire(struct radeon_device *rdev)
163 {
164 struct drm_device *dev = rdev->ddev;
165 struct pci_dev *pdev = to_pci_dev(dev->dev);
166
167 if (!rdev->agp)
168 return -ENODEV;
169 if (rdev->agp->acquired)
170 return -EBUSY;
171 rdev->agp->bridge = agp_backend_acquire(pdev);
172 if (!rdev->agp->bridge)
173 return -ENODEV;
174 rdev->agp->acquired = 1;
175 return 0;
176 }
177
radeon_agp_head_release(struct radeon_device * rdev)178 static int radeon_agp_head_release(struct radeon_device *rdev)
179 {
180 if (!rdev->agp || !rdev->agp->acquired)
181 return -EINVAL;
182 agp_backend_release(rdev->agp->bridge);
183 rdev->agp->acquired = 0;
184 return 0;
185 }
186
radeon_agp_head_enable(struct radeon_device * rdev,struct radeon_agp_mode mode)187 static int radeon_agp_head_enable(struct radeon_device *rdev, struct radeon_agp_mode mode)
188 {
189 if (!rdev->agp || !rdev->agp->acquired)
190 return -EINVAL;
191
192 rdev->agp->mode = mode.mode;
193 agp_enable(rdev->agp->bridge, mode.mode);
194 rdev->agp->enabled = 1;
195 return 0;
196 }
197
radeon_agp_head_info(struct radeon_device * rdev,struct radeon_agp_info * info)198 static int radeon_agp_head_info(struct radeon_device *rdev, struct radeon_agp_info *info)
199 {
200 struct agp_kern_info *kern;
201
202 if (!rdev->agp || !rdev->agp->acquired)
203 return -EINVAL;
204
205 kern = &rdev->agp->agp_info;
206 info->agp_version_major = kern->version.major;
207 info->agp_version_minor = kern->version.minor;
208 info->mode = kern->mode;
209 info->aperture_base = kern->aper_base;
210 info->aperture_size = kern->aper_size * 1024 * 1024;
211 info->memory_allowed = kern->max_memory << PAGE_SHIFT;
212 info->memory_used = kern->current_memory << PAGE_SHIFT;
213 info->id_vendor = kern->device->vendor;
214 info->id_device = kern->device->device;
215
216 return 0;
217 }
218 #endif
219
radeon_agp_init(struct radeon_device * rdev)220 int radeon_agp_init(struct radeon_device *rdev)
221 {
222 #if IS_ENABLED(CONFIG_AGP)
223 struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
224 struct radeon_agp_mode mode;
225 struct radeon_agp_info info;
226 uint32_t agp_status;
227 int default_mode;
228 bool is_v3;
229 int ret;
230
231 /* Acquire AGP. */
232 ret = radeon_agp_head_acquire(rdev);
233 if (ret) {
234 DRM_ERROR("Unable to acquire AGP: %d\n", ret);
235 return ret;
236 }
237
238 ret = radeon_agp_head_info(rdev, &info);
239 if (ret) {
240 radeon_agp_head_release(rdev);
241 DRM_ERROR("Unable to get AGP info: %d\n", ret);
242 return ret;
243 }
244
245 if (rdev->agp->agp_info.aper_size < 32) {
246 radeon_agp_head_release(rdev);
247 dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
248 "need at least 32M, disabling AGP\n",
249 rdev->agp->agp_info.aper_size);
250 return -EINVAL;
251 }
252
253 mode.mode = info.mode;
254 /* chips with the agp to pcie bridge don't have the AGP_STATUS register
255 * Just use the whatever mode the host sets up.
256 */
257 if (rdev->family <= CHIP_RV350)
258 agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
259 else
260 agp_status = mode.mode;
261 is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
262
263 if (is_v3) {
264 default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
265 } else {
266 if (agp_status & RADEON_AGP_4X_MODE) {
267 default_mode = 4;
268 } else if (agp_status & RADEON_AGP_2X_MODE) {
269 default_mode = 2;
270 } else {
271 default_mode = 1;
272 }
273 }
274
275 /* Apply AGPMode Quirks */
276 while (p && p->chip_device != 0) {
277 if (info.id_vendor == p->hostbridge_vendor &&
278 info.id_device == p->hostbridge_device &&
279 rdev->pdev->vendor == p->chip_vendor &&
280 rdev->pdev->device == p->chip_device &&
281 rdev->pdev->subsystem_vendor == p->subsys_vendor &&
282 rdev->pdev->subsystem_device == p->subsys_device) {
283 default_mode = p->default_mode;
284 }
285 ++p;
286 }
287
288 if (radeon_agpmode > 0) {
289 if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
290 (radeon_agpmode > (is_v3 ? 8 : 4)) ||
291 (radeon_agpmode & (radeon_agpmode - 1))) {
292 DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
293 radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
294 default_mode);
295 radeon_agpmode = default_mode;
296 } else {
297 DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
298 }
299 } else {
300 radeon_agpmode = default_mode;
301 }
302
303 mode.mode &= ~RADEON_AGP_MODE_MASK;
304 if (is_v3) {
305 switch (radeon_agpmode) {
306 case 8:
307 mode.mode |= RADEON_AGPv3_8X_MODE;
308 break;
309 case 4:
310 default:
311 mode.mode |= RADEON_AGPv3_4X_MODE;
312 break;
313 }
314 } else {
315 switch (radeon_agpmode) {
316 case 4:
317 mode.mode |= RADEON_AGP_4X_MODE;
318 break;
319 case 2:
320 mode.mode |= RADEON_AGP_2X_MODE;
321 break;
322 case 1:
323 default:
324 mode.mode |= RADEON_AGP_1X_MODE;
325 break;
326 }
327 }
328
329 mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
330 ret = radeon_agp_head_enable(rdev, mode);
331 if (ret) {
332 DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
333 radeon_agp_head_release(rdev);
334 return ret;
335 }
336
337 rdev->mc.agp_base = rdev->agp->agp_info.aper_base;
338 rdev->mc.gtt_size = rdev->agp->agp_info.aper_size << 20;
339 rdev->mc.gtt_start = rdev->mc.agp_base;
340 rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
341 dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
342 rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
343
344 /* workaround some hw issues */
345 if (rdev->family < CHIP_R200) {
346 WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
347 }
348 return 0;
349 #else
350 return 0;
351 #endif
352 }
353
radeon_agp_resume(struct radeon_device * rdev)354 void radeon_agp_resume(struct radeon_device *rdev)
355 {
356 #if IS_ENABLED(CONFIG_AGP)
357 int r;
358 if (rdev->flags & RADEON_IS_AGP) {
359 r = radeon_agp_init(rdev);
360 if (r)
361 dev_warn(rdev->dev, "radeon AGP reinit failed\n");
362 }
363 #endif
364 }
365
radeon_agp_fini(struct radeon_device * rdev)366 void radeon_agp_fini(struct radeon_device *rdev)
367 {
368 #if IS_ENABLED(CONFIG_AGP)
369 if (rdev->agp && rdev->agp->acquired) {
370 radeon_agp_head_release(rdev);
371 }
372 #endif
373 }
374
radeon_agp_suspend(struct radeon_device * rdev)375 void radeon_agp_suspend(struct radeon_device *rdev)
376 {
377 radeon_agp_fini(rdev);
378 }
379