1 | /* $NetBSD: nouveau_subdev_fb_nv50.c,v 1.3 2015/10/14 00:12:55 mrg Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_fb_nv50.c,v 1.3 2015/10/14 00:12:55 mrg Exp $" ); |
29 | |
30 | #include <core/client.h> |
31 | #include <core/enum.h> |
32 | #include <core/engctx.h> |
33 | #include <core/object.h> |
34 | |
35 | #include <subdev/bios.h> |
36 | |
37 | #include "nv50.h" |
38 | |
39 | int |
40 | nv50_fb_memtype[0x80] = { |
41 | 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
42 | 1, 1, 1, 1, 0, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0, |
43 | 1, 1, 1, 1, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 0, |
44 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
45 | 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 0, 0, |
46 | 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
47 | 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 2, 2, 2, 2, |
48 | 1, 0, 2, 0, 1, 0, 2, 0, 1, 1, 2, 2, 1, 1, 0, 0 |
49 | }; |
50 | |
51 | bool |
52 | nv50_fb_memtype_valid(struct nouveau_fb *pfb, u32 memtype) |
53 | { |
54 | return nv50_fb_memtype[(memtype & 0xff00) >> 8] != 0; |
55 | } |
56 | |
57 | static const struct nouveau_enum vm_dispatch_subclients[] = { |
58 | { 0x00000000, "GRCTX" , NULL }, |
59 | { 0x00000001, "NOTIFY" , NULL }, |
60 | { 0x00000002, "QUERY" , NULL }, |
61 | { 0x00000003, "COND" , NULL }, |
62 | { 0x00000004, "M2M_IN" , NULL }, |
63 | { 0x00000005, "M2M_OUT" , NULL }, |
64 | { 0x00000006, "M2M_NOTIFY" , NULL }, |
65 | {} |
66 | }; |
67 | |
68 | static const struct nouveau_enum vm_ccache_subclients[] = { |
69 | { 0x00000000, "CB" , NULL }, |
70 | { 0x00000001, "TIC" , NULL }, |
71 | { 0x00000002, "TSC" , NULL }, |
72 | {} |
73 | }; |
74 | |
75 | static const struct nouveau_enum vm_prop_subclients[] = { |
76 | { 0x00000000, "RT0" , NULL }, |
77 | { 0x00000001, "RT1" , NULL }, |
78 | { 0x00000002, "RT2" , NULL }, |
79 | { 0x00000003, "RT3" , NULL }, |
80 | { 0x00000004, "RT4" , NULL }, |
81 | { 0x00000005, "RT5" , NULL }, |
82 | { 0x00000006, "RT6" , NULL }, |
83 | { 0x00000007, "RT7" , NULL }, |
84 | { 0x00000008, "ZETA" , NULL }, |
85 | { 0x00000009, "LOCAL" , NULL }, |
86 | { 0x0000000a, "GLOBAL" , NULL }, |
87 | { 0x0000000b, "STACK" , NULL }, |
88 | { 0x0000000c, "DST2D" , NULL }, |
89 | {} |
90 | }; |
91 | |
92 | static const struct nouveau_enum vm_pfifo_subclients[] = { |
93 | { 0x00000000, "PUSHBUF" , NULL }, |
94 | { 0x00000001, "SEMAPHORE" , NULL }, |
95 | {} |
96 | }; |
97 | |
98 | static const struct nouveau_enum vm_bar_subclients[] = { |
99 | { 0x00000000, "FB" , NULL }, |
100 | { 0x00000001, "IN" , NULL }, |
101 | {} |
102 | }; |
103 | |
104 | static const struct nouveau_enum vm_client[] = { |
105 | { 0x00000000, "STRMOUT" , NULL }, |
106 | { 0x00000003, "DISPATCH" , vm_dispatch_subclients }, |
107 | { 0x00000004, "PFIFO_WRITE" , NULL }, |
108 | { 0x00000005, "CCACHE" , vm_ccache_subclients }, |
109 | { 0x00000006, "PPPP" , NULL }, |
110 | { 0x00000007, "CLIPID" , NULL }, |
111 | { 0x00000008, "PFIFO_READ" , NULL }, |
112 | { 0x00000009, "VFETCH" , NULL }, |
113 | { 0x0000000a, "TEXTURE" , NULL }, |
114 | { 0x0000000b, "PROP" , vm_prop_subclients }, |
115 | { 0x0000000c, "PVP" , NULL }, |
116 | { 0x0000000d, "PBSP" , NULL }, |
117 | { 0x0000000e, "PCRYPT" , NULL }, |
118 | { 0x0000000f, "PCOUNTER" , NULL }, |
119 | { 0x00000011, "PDAEMON" , NULL }, |
120 | {} |
121 | }; |
122 | |
123 | static const struct nouveau_enum vm_engine[] = { |
124 | { 0x00000000, "PGRAPH" , NULL, NVDEV_ENGINE_GR }, |
125 | { 0x00000001, "PVP" , NULL, NVDEV_ENGINE_VP }, |
126 | { 0x00000004, "PEEPHOLE" , NULL }, |
127 | { 0x00000005, "PFIFO" , vm_pfifo_subclients, NVDEV_ENGINE_FIFO }, |
128 | { 0x00000006, "BAR" , vm_bar_subclients }, |
129 | { 0x00000008, "PPPP" , NULL, NVDEV_ENGINE_PPP }, |
130 | { 0x00000008, "PMPEG" , NULL, NVDEV_ENGINE_MPEG }, |
131 | { 0x00000009, "PBSP" , NULL, NVDEV_ENGINE_BSP }, |
132 | { 0x0000000a, "PCRYPT" , NULL, NVDEV_ENGINE_CRYPT }, |
133 | { 0x0000000b, "PCOUNTER" , NULL }, |
134 | { 0x0000000c, "SEMAPHORE_BG" , NULL }, |
135 | { 0x0000000d, "PCOPY" , NULL, NVDEV_ENGINE_COPY0 }, |
136 | { 0x0000000e, "PDAEMON" , NULL }, |
137 | {} |
138 | }; |
139 | |
140 | static const struct nouveau_enum vm_fault[] = { |
141 | { 0x00000000, "PT_NOT_PRESENT" , NULL }, |
142 | { 0x00000001, "PT_TOO_SHORT" , NULL }, |
143 | { 0x00000002, "PAGE_NOT_PRESENT" , NULL }, |
144 | { 0x00000003, "PAGE_SYSTEM_ONLY" , NULL }, |
145 | { 0x00000004, "PAGE_READ_ONLY" , NULL }, |
146 | { 0x00000006, "NULL_DMAOBJ" , NULL }, |
147 | { 0x00000007, "WRONG_MEMTYPE" , NULL }, |
148 | { 0x0000000b, "VRAM_LIMIT" , NULL }, |
149 | { 0x0000000f, "DMAOBJ_LIMIT" , NULL }, |
150 | {} |
151 | }; |
152 | |
153 | static void |
154 | nv50_fb_intr(struct nouveau_subdev *subdev) |
155 | { |
156 | struct nouveau_device *device = nv_device(subdev); |
157 | struct nouveau_engine *engine; |
158 | struct nv50_fb_priv *priv = (void *)subdev; |
159 | const struct nouveau_enum *en, *cl; |
160 | struct nouveau_object *engctx = NULL; |
161 | u32 trap[6], idx, chan; |
162 | u8 st0, st1, st2, st3; |
163 | int i; |
164 | |
165 | idx = nv_rd32(priv, 0x100c90); |
166 | if (!(idx & 0x80000000)) |
167 | return; |
168 | idx &= 0x00ffffff; |
169 | |
170 | for (i = 0; i < 6; i++) { |
171 | nv_wr32(priv, 0x100c90, idx | i << 24); |
172 | trap[i] = nv_rd32(priv, 0x100c94); |
173 | } |
174 | nv_wr32(priv, 0x100c90, idx | 0x80000000); |
175 | |
176 | /* decode status bits into something more useful */ |
177 | if (device->chipset < 0xa3 || |
178 | device->chipset == 0xaa || device->chipset == 0xac) { |
179 | st0 = (trap[0] & 0x0000000f) >> 0; |
180 | st1 = (trap[0] & 0x000000f0) >> 4; |
181 | st2 = (trap[0] & 0x00000f00) >> 8; |
182 | st3 = (trap[0] & 0x0000f000) >> 12; |
183 | } else { |
184 | st0 = (trap[0] & 0x000000ff) >> 0; |
185 | st1 = (trap[0] & 0x0000ff00) >> 8; |
186 | st2 = (trap[0] & 0x00ff0000) >> 16; |
187 | st3 = (trap[0] & 0xff000000) >> 24; |
188 | } |
189 | chan = (trap[2] << 16) | trap[1]; |
190 | |
191 | en = nouveau_enum_find(vm_engine, st0); |
192 | |
193 | if (en && en->data2) { |
194 | const struct nouveau_enum *orig_en = en; |
195 | while (en->name && en->value == st0 && en->data2) { |
196 | engine = nouveau_engine(subdev, en->data2); |
197 | if (engine) { |
198 | engctx = nouveau_engctx_get(engine, chan); |
199 | if (engctx) |
200 | break; |
201 | } |
202 | en++; |
203 | } |
204 | if (!engctx) |
205 | en = orig_en; |
206 | } |
207 | |
208 | nv_error(priv, "trapped %s at 0x%02x%04x%04x on channel 0x%08x [%s] " , |
209 | (trap[5] & 0x00000100) ? "read" : "write" , |
210 | trap[5] & 0xff, trap[4] & 0xffff, trap[3] & 0xffff, chan, |
211 | nouveau_client_name(engctx)); |
212 | |
213 | nouveau_engctx_put(engctx); |
214 | |
215 | if (en) |
216 | pr_cont("%s/" , en->name); |
217 | else |
218 | pr_cont("%02x/" , st0); |
219 | |
220 | cl = nouveau_enum_find(vm_client, st2); |
221 | if (cl) |
222 | pr_cont("%s/" , cl->name); |
223 | else |
224 | pr_cont("%02x/" , st2); |
225 | |
226 | if (cl && cl->data) cl = nouveau_enum_find(cl->data, st3); |
227 | else if (en && en->data) cl = nouveau_enum_find(en->data, st3); |
228 | else cl = NULL; |
229 | if (cl) |
230 | pr_cont("%s" , cl->name); |
231 | else |
232 | pr_cont("%02x" , st3); |
233 | |
234 | pr_cont(" reason: " ); |
235 | en = nouveau_enum_find(vm_fault, st1); |
236 | if (en) |
237 | pr_cont("%s\n" , en->name); |
238 | else |
239 | pr_cont("0x%08x\n" , st1); |
240 | } |
241 | |
242 | int |
243 | nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
244 | struct nouveau_oclass *oclass, void *data, u32 size, |
245 | struct nouveau_object **pobject) |
246 | { |
247 | struct nouveau_device *device = nv_device(parent); |
248 | struct nv50_fb_priv *priv; |
249 | int ret; |
250 | |
251 | ret = nouveau_fb_create(parent, engine, oclass, &priv); |
252 | *pobject = nv_object(priv); |
253 | if (ret) |
254 | return ret; |
255 | |
256 | #ifdef __NetBSD__ |
257 | { |
258 | const bus_dma_tag_t dmat = pci_dma64_available(&device->pdev->pd_pa) ? |
259 | device->pdev->pd_pa.pa_dmat64 : device->pdev->pd_pa.pa_dmat; |
260 | int nsegs; |
261 | |
262 | priv->r100c08_map = NULL; /* paranoia */ |
263 | priv->r100c08_kva = NULL; |
264 | |
265 | /* XXX errno NetBSD->Linux */ |
266 | ret = -bus_dmamem_alloc(dmat, PAGE_SIZE, PAGE_SIZE, 0, |
267 | &priv->r100c08_seg, 1, &nsegs, BUS_DMA_WAITOK); |
268 | if (ret) { |
269 | fail0: nouveau_fb_destroy(&priv->base); |
270 | return ret; |
271 | } |
272 | KASSERT(nsegs == 1); |
273 | |
274 | /* XXX errno NetBSD->Linux */ |
275 | ret = -bus_dmamap_create(dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, |
276 | BUS_DMA_WAITOK, &priv->r100c08_map); |
277 | if (ret) { |
278 | fail1: bus_dmamem_free(dmat, &priv->r100c08_seg, 1); |
279 | goto fail0; |
280 | } |
281 | |
282 | /* XXX errno NetBSD->Linux */ |
283 | ret = -bus_dmamem_map(dmat, &priv->r100c08_seg, 1, PAGE_SIZE, |
284 | &priv->r100c08_kva, BUS_DMA_WAITOK); |
285 | if (ret) { |
286 | fail2: bus_dmamap_destroy(dmat, priv->r100c08_map); |
287 | goto fail1; |
288 | } |
289 | (void)memset(priv->r100c08_kva, 0, PAGE_SIZE); |
290 | |
291 | /* XXX errno NetBSD->Linux */ |
292 | ret = -bus_dmamap_load(dmat, priv->r100c08_map, priv->r100c08_kva, |
293 | PAGE_SIZE, NULL, BUS_DMA_WAITOK); |
294 | if (ret) { |
295 | fail3: __unused bus_dmamem_unmap(dmat, priv->r100c08_kva, PAGE_SIZE); |
296 | goto fail2; |
297 | } |
298 | |
299 | priv->r100c08 = priv->r100c08_map->dm_segs[0].ds_addr; |
300 | } |
301 | #else |
302 | priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); |
303 | if (priv->r100c08_page) { |
304 | priv->r100c08 = nv_device_map_page(device, priv->r100c08_page); |
305 | if (!priv->r100c08) |
306 | nv_warn(priv, "failed 0x100c08 page map\n" ); |
307 | } else { |
308 | nv_warn(priv, "failed 0x100c08 page alloc\n" ); |
309 | } |
310 | #endif |
311 | |
312 | nv_subdev(priv)->intr = nv50_fb_intr; |
313 | return 0; |
314 | } |
315 | |
316 | void |
317 | nv50_fb_dtor(struct nouveau_object *object) |
318 | { |
319 | struct nouveau_device *device = nv_device(object); |
320 | struct nv50_fb_priv *priv = (void *)object; |
321 | |
322 | #ifdef __NetBSD__ |
323 | if (priv->r100c08_map) { |
324 | const bus_dma_tag_t dmat = pci_dma64_available(&device->pdev->pd_pa) ? |
325 | device->pdev->pd_pa.pa_dmat64 : device->pdev->pd_pa.pa_dmat; |
326 | |
327 | bus_dmamap_unload(dmat, priv->r100c08_map); |
328 | bus_dmamem_unmap(dmat, priv->r100c08_kva, PAGE_SIZE); |
329 | bus_dmamap_destroy(dmat, priv->r100c08_map); |
330 | bus_dmamem_free(dmat, &priv->r100c08_seg, 1); |
331 | } |
332 | #else |
333 | if (priv->r100c08_page) { |
334 | nv_device_unmap_page(device, priv->r100c08); |
335 | __free_page(priv->r100c08_page); |
336 | } |
337 | #endif |
338 | |
339 | nouveau_fb_destroy(&priv->base); |
340 | } |
341 | |
342 | int |
343 | nv50_fb_init(struct nouveau_object *object) |
344 | { |
345 | struct nv50_fb_impl *impl = (void *)object->oclass; |
346 | struct nv50_fb_priv *priv = (void *)object; |
347 | int ret; |
348 | |
349 | ret = nouveau_fb_init(&priv->base); |
350 | if (ret) |
351 | return ret; |
352 | |
353 | /* Not a clue what this is exactly. Without pointing it at a |
354 | * scratch page, VRAM->GART blits with M2MF (as in DDX DFS) |
355 | * cause IOMMU "read from address 0" errors (rh#561267) |
356 | */ |
357 | nv_wr32(priv, 0x100c08, priv->r100c08 >> 8); |
358 | |
359 | /* This is needed to get meaningful information from 100c90 |
360 | * on traps. No idea what these values mean exactly. */ |
361 | nv_wr32(priv, 0x100c90, impl->trap); |
362 | return 0; |
363 | } |
364 | |
365 | struct nouveau_oclass * |
366 | nv50_fb_oclass = &(struct nv50_fb_impl) { |
367 | .base.base.handle = NV_SUBDEV(FB, 0x50), |
368 | .base.base.ofuncs = &(struct nouveau_ofuncs) { |
369 | .ctor = nv50_fb_ctor, |
370 | .dtor = nv50_fb_dtor, |
371 | .init = nv50_fb_init, |
372 | .fini = _nouveau_fb_fini, |
373 | }, |
374 | .base.memtype = nv50_fb_memtype_valid, |
375 | .base.ram = &nv50_ram_oclass, |
376 | .trap = 0x000707ff, |
377 | }.base.base; |
378 | |