drivers/gpu/drm/nouveau/nv50_evo.c

   1 /*
   2  * Copyright 2010 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  */
  24
  25 #include "drmP.h"
  26
  27 #include "nouveau_drm.h"
  28 #include "nouveau_dma.h"
  29 #include "nv50_display.h"
  30
  31 #include <core/gpuobj.h>
  32
  33 #include <subdev/timer.h>
  34 #include <subdev/fb.h>
  35
  36 static u32
  37 nv50_evo_rd32(struct nouveau_object *object, u32 addr)
  38 {
  39         void __iomem *iomem = object->oclass->ofuncs->rd08;
  40         return ioread32_native(iomem + addr);
  41 }
  42
  43 static void
  44 nv50_evo_wr32(struct nouveau_object *object, u32 addr, u32 data)
  45 {
  46         void __iomem *iomem = object->oclass->ofuncs->rd08;
  47         iowrite32_native(data, iomem + addr);
  48 }
  49
  50 static void
  51 nv50_evo_channel_del(struct nouveau_channel **pevo)
  52 {
  53         struct nouveau_channel *evo = *pevo;
  54
  55         if (!evo)
  56                 return;
  57         *pevo = NULL;
  58
  59         nouveau_bo_unmap(evo->push.buffer);
  60         nouveau_bo_ref(NULL, &evo->push.buffer);
  61
  62         if (evo->object)
  63                 iounmap(evo->object->oclass->ofuncs);
  64
  65         kfree(evo);
  66 }
  67
  68 int
  69 nv50_evo_dmaobj_new(struct nouveau_channel *evo, u32 handle, u32 memtype,
  70                     u64 base, u64 size, struct nouveau_gpuobj **pobj)
  71 {
  72         struct drm_device *dev = evo->fence;
  73         struct nouveau_drm *drm = nouveau_drm(dev);
  74         struct nv50_display *disp = nv50_display(dev);
  75         u32 dmao = disp->dmao;
  76         u32 hash = disp->hash;
  77         u32 flags5;
  78
  79         if (nv_device(drm->device)->chipset < 0xc0) {
  80                 /* not supported on 0x50, specified in format mthd */
  81                 if (nv_device(drm->device)->chipset == 0x50)
  82                         memtype = 0;
  83                 flags5 = 0x00010000;
  84         } else {
  85                 if (memtype & 0x80000000)
  86                         flags5 = 0x00000000; /* large pages */
  87                 else
  88                         flags5 = 0x00020000;
  89         }
  90
  91         nv_wo32(disp->ramin, dmao + 0x00, 0x0019003d | (memtype << 22));
  92         nv_wo32(disp->ramin, dmao + 0x04, lower_32_bits(base + size - 1));
  93         nv_wo32(disp->ramin, dmao + 0x08, lower_32_bits(base));
  94         nv_wo32(disp->ramin, dmao + 0x0c, upper_32_bits(base + size - 1) << 24 |
  95                                           upper_32_bits(base));
  96         nv_wo32(disp->ramin, dmao + 0x10, 0x00000000);
  97         nv_wo32(disp->ramin, dmao + 0x14, flags5);
  98
  99         nv_wo32(disp->ramin, hash + 0x00, handle);
 100         nv_wo32(disp->ramin, hash + 0x04, (evo->handle << 28) | (dmao << 10) |
 101                                            evo->handle);
 102
 103         disp->dmao += 0x20;
 104         disp->hash += 0x08;
 105         return 0;
 106 }
 107
 108 static int
 109 nv50_evo_channel_new(struct drm_device *dev, int chid,
 110                      struct nouveau_channel **pevo)
 111 {
 112         struct nouveau_drm *drm = nouveau_drm(dev);
 113         struct nv50_display *disp = nv50_display(dev);
 114         struct nouveau_channel *evo;
 115         int ret;
 116
 117         evo = kzalloc(sizeof(struct nouveau_channel), GFP_KERNEL);
 118         if (!evo)
 119                 return -ENOMEM;
 120         *pevo = evo;
 121
 122         evo->drm = drm;
 123         evo->handle = chid;
 124         evo->fence = dev;
 125         evo->user_get = 4;
 126         evo->user_put = 0;
 127
 128         ret = nouveau_bo_new(dev, 4096, 0, TTM_PL_FLAG_VRAM, 0, 0, NULL,
 129                              &evo->push.buffer);
 130         if (ret == 0)
 131                 ret = nouveau_bo_pin(evo->push.buffer, TTM_PL_FLAG_VRAM);
 132         if (ret) {
 133                 NV_ERROR(drm, "Error creating EVO DMA push buffer: %d\n", ret);
 134                 nv50_evo_channel_del(pevo);
 135                 return ret;
 136         }
 137
 138         ret = nouveau_bo_map(evo->push.buffer);
 139         if (ret) {
 140                 NV_ERROR(drm, "Error mapping EVO DMA push buffer: %d\n", ret);
 141                 nv50_evo_channel_del(pevo);
 142                 return ret;
 143         }
 144
 145         evo->object = kzalloc(sizeof(*evo->object), GFP_KERNEL);
 146 #ifdef NOUVEAU_OBJECT_MAGIC
 147         evo->object->_magic = NOUVEAU_OBJECT_MAGIC;
 148 #endif
 149         evo->object->parent = nv_object(disp->ramin)->parent;
 150         evo->object->engine = nv_object(disp->ramin)->engine;
 151         evo->object->oclass =
 152                 kzalloc(sizeof(*evo->object->oclass), GFP_KERNEL);
 153         evo->object->oclass->ofuncs =
 154                 kzalloc(sizeof(*evo->object->oclass->ofuncs), GFP_KERNEL);
 155         evo->object->oclass->ofuncs->rd32 = nv50_evo_rd32;
 156         evo->object->oclass->ofuncs->wr32 = nv50_evo_wr32;
 157         evo->object->oclass->ofuncs->rd08 =
 158                 ioremap(pci_resource_start(dev->pdev, 0) +
 159                         NV50_PDISPLAY_USER(evo->handle), PAGE_SIZE);
 160         return 0;
 161 }
 162
 163 static int
 164 nv50_evo_channel_init(struct nouveau_channel *evo)
 165 {
 166         struct nouveau_drm *drm = evo->drm;
 167         struct nouveau_device *device = nv_device(drm->device);
 168         int id = evo->handle, ret, i;
 169         u64 pushbuf = evo->push.buffer->bo.offset;
 170         u32 tmp;
 171
 172         tmp = nv_rd32(device, NV50_PDISPLAY_EVO_CTRL(id));
 173         if ((tmp & 0x009f0000) == 0x00020000)
 174                 nv_wr32(device, NV50_PDISPLAY_EVO_CTRL(id), tmp | 0x00800000);
 175
 176         tmp = nv_rd32(device, NV50_PDISPLAY_EVO_CTRL(id));
 177         if ((tmp & 0x003f0000) == 0x00030000)
 178                 nv_wr32(device, NV50_PDISPLAY_EVO_CTRL(id), tmp | 0x00600000);
 179
 180         /* initialise fifo */
 181         nv_wr32(device, NV50_PDISPLAY_EVO_DMA_CB(id), pushbuf >> 8 |
 182                      NV50_PDISPLAY_EVO_DMA_CB_LOCATION_VRAM |
 183                      NV50_PDISPLAY_EVO_DMA_CB_VALID);
 184         nv_wr32(device, NV50_PDISPLAY_EVO_UNK2(id), 0x00010000);
 185         nv_wr32(device, NV50_PDISPLAY_EVO_HASH_TAG(id), id);
 186         nv_mask(device, NV50_PDISPLAY_EVO_CTRL(id), NV50_PDISPLAY_EVO_CTRL_DMA,
 187                      NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED);
 188
 189         nv_wr32(device, NV50_PDISPLAY_USER_PUT(id), 0x00000000);
 190         nv_wr32(device, NV50_PDISPLAY_EVO_CTRL(id), 0x01000003 |
 191                      NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED);
 192         if (!nv_wait(device, NV50_PDISPLAY_EVO_CTRL(id), 0x80000000, 0x00000000)) {
 193                 NV_ERROR(drm, "EvoCh %d init timeout: 0x%08x\n", id,
 194                          nv_rd32(device, NV50_PDISPLAY_EVO_CTRL(id)));
 195                 return -EBUSY;
 196         }
 197
 198         /* enable error reporting on the channel */
 199         nv_mask(device, 0x610028, 0x00000000, 0x00010001 << id);
 200
 201         evo->dma.max = (4096/4) - 2;
 202         evo->dma.max &= ~7;
 203         evo->dma.put = 0;
 204         evo->dma.cur = evo->dma.put;
 205         evo->dma.free = evo->dma.max - evo->dma.cur;
 206
 207         ret = RING_SPACE(evo, NOUVEAU_DMA_SKIPS);
 208         if (ret)
 209                 return ret;
 210
 211         for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
 212                 OUT_RING(evo, 0);
 213
 214         return 0;
 215 }
 216
 217 static void
 218 nv50_evo_channel_fini(struct nouveau_channel *evo)
 219 {
 220         struct nouveau_drm *drm = evo->drm;
 221         struct nouveau_device *device = nv_device(drm->device);
 222         int id = evo->handle;
 223
 224         nv_mask(device, 0x610028, 0x00010001 << id, 0x00000000);
 225         nv_mask(device, NV50_PDISPLAY_EVO_CTRL(id), 0x00001010, 0x00001000);
 226         nv_wr32(device, NV50_PDISPLAY_INTR_0, (1 << id));
 227         nv_mask(device, NV50_PDISPLAY_EVO_CTRL(id), 0x00000003, 0x00000000);
 228         if (!nv_wait(device, NV50_PDISPLAY_EVO_CTRL(id), 0x001e0000, 0x00000000)) {
 229                 NV_ERROR(drm, "EvoCh %d takedown timeout: 0x%08x\n", id,
 230                          nv_rd32(device, NV50_PDISPLAY_EVO_CTRL(id)));
 231         }
 232 }
 233
 234 void
 235 nv50_evo_destroy(struct drm_device *dev)
 236 {
 237         struct nv50_display *disp = nv50_display(dev);
 238         int i;
 239
 240         for (i = 0; i < 2; i++) {
 241                 if (disp->crtc[i].sem.bo) {
 242                         nouveau_bo_unmap(disp->crtc[i].sem.bo);
 243                         nouveau_bo_ref(NULL, &disp->crtc[i].sem.bo);
 244                 }
 245                 nv50_evo_channel_del(&disp->crtc[i].sync);
 246         }
 247         nv50_evo_channel_del(&disp->master);
 248         nouveau_gpuobj_ref(NULL, &disp->ramin);
 249 }
 250
 251 int
 252 nv50_evo_create(struct drm_device *dev)
 253 {
 254         struct nouveau_drm *drm = nouveau_drm(dev);
 255         struct nouveau_fb *pfb = nouveau_fb(drm->device);
 256         struct nv50_display *disp = nv50_display(dev);
 257         struct nouveau_channel *evo;
 258         int ret, i, j;
 259
 260         /* setup object management on it, any other evo channel will
 261          * use this also as there's no per-channel support on the
 262          * hardware
 263          */
 264         ret = nouveau_gpuobj_new(drm->device, NULL, 32768, 65536,
 265                                  NVOBJ_FLAG_ZERO_ALLOC, &disp->ramin);
 266         if (ret) {
 267                 NV_ERROR(drm, "Error allocating EVO channel memory: %d\n", ret);
 268                 goto err;
 269         }
 270
 271         disp->hash = 0x0000;
 272         disp->dmao = 0x1000;
 273
 274         /* create primary evo channel, the one we use for modesetting
 275          * purporses
 276          */
 277         ret = nv50_evo_channel_new(dev, 0, &disp->master);
 278         if (ret)
 279                 return ret;
 280         evo = disp->master;
 281
 282         ret = nv50_evo_dmaobj_new(disp->master, NvEvoSync, 0x0000,
 283                                   disp->ramin->addr + 0x2000, 0x1000, NULL);
 284         if (ret)
 285                 goto err;
 286
 287         /* create some default objects for the scanout memtypes we support */
 288         ret = nv50_evo_dmaobj_new(disp->master, NvEvoVRAM, 0x0000,
 289                                   0, pfb->ram.size, NULL);
 290         if (ret)
 291                 goto err;
 292
 293         ret = nv50_evo_dmaobj_new(disp->master, NvEvoVRAM_LP, 0x80000000,
 294                                   0, pfb->ram.size, NULL);
 295         if (ret)
 296                 goto err;
 297
 298         ret = nv50_evo_dmaobj_new(disp->master, NvEvoFB32, 0x80000000 |
 299                                   (nv_device(drm->device)->chipset < 0xc0 ? 0x7a : 0xfe),
 300                                   0, pfb->ram.size, NULL);
 301         if (ret)
 302                 goto err;
 303
 304         ret = nv50_evo_dmaobj_new(disp->master, NvEvoFB16, 0x80000000 |
 305                                   (nv_device(drm->device)->chipset < 0xc0 ? 0x70 : 0xfe),
 306                                   0, pfb->ram.size, NULL);
 307         if (ret)
 308                 goto err;
 309
 310         /* create "display sync" channels and other structures we need
 311          * to implement page flipping
 312          */
 313         for (i = 0; i < 2; i++) {
 314                 struct nv50_display_crtc *dispc = &disp->crtc[i];
 315                 u64 offset;
 316
 317                 ret = nv50_evo_channel_new(dev, 1 + i, &dispc->sync);
 318                 if (ret)
 319                         goto err;
 320
 321                 ret = nouveau_bo_new(dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
 322                                      0, 0x0000, NULL, &dispc->sem.bo);
 323                 if (!ret) {
 324                         ret = nouveau_bo_pin(dispc->sem.bo, TTM_PL_FLAG_VRAM);
 325                         if (!ret)
 326                                 ret = nouveau_bo_map(dispc->sem.bo);
 327                         if (ret)
 328                                 nouveau_bo_ref(NULL, &dispc->sem.bo);
 329                         offset = dispc->sem.bo->bo.offset;
 330                 }
 331
 332                 if (ret)
 333                         goto err;
 334
 335                 ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoSync, 0x0000,
 336                                           offset, 4096, NULL);
 337                 if (ret)
 338                         goto err;
 339
 340                 ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoVRAM_LP, 0x80000000,
 341                                           0, pfb->ram.size, NULL);
 342                 if (ret)
 343                         goto err;
 344
 345                 ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB32, 0x80000000 |
 346                                           (nv_device(drm->device)->chipset < 0xc0 ?
 347                                           0x7a : 0xfe),
 348                                           0, pfb->ram.size, NULL);
 349                 if (ret)
 350                         goto err;
 351
 352                 ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB16, 0x80000000 |
 353                                           (nv_device(drm->device)->chipset < 0xc0 ?
 354                                           0x70 : 0xfe),
 355                                           0, pfb->ram.size, NULL);
 356                 if (ret)
 357                         goto err;
 358
 359                 for (j = 0; j < 4096; j += 4)
 360                         nouveau_bo_wr32(dispc->sem.bo, j / 4, 0x74b1e000);
 361                 dispc->sem.offset = 0;
 362         }
 363
 364         return 0;
 365
 366 err:
 367         nv50_evo_destroy(dev);
 368         return ret;
 369 }
 370
 371 int
 372 nv50_evo_init(struct drm_device *dev)
 373 {
 374         struct nv50_display *disp = nv50_display(dev);
 375         int ret, i;
 376
 377         ret = nv50_evo_channel_init(disp->master);
 378         if (ret)
 379                 return ret;
 380
 381         for (i = 0; i < 2; i++) {
 382                 ret = nv50_evo_channel_init(disp->crtc[i].sync);
 383                 if (ret)
 384                         return ret;
 385         }
 386
 387         return 0;
 388 }
 389
 390 void
 391 nv50_evo_fini(struct drm_device *dev)
 392 {
 393         struct nv50_display *disp = nv50_display(dev);
 394         int i;
 395
 396         for (i = 0; i < 2; i++) {
 397                 if (disp->crtc[i].sync)
 398                         nv50_evo_channel_fini(disp->crtc[i].sync);
 399         }
 400
 401         if (disp->master)
 402                 nv50_evo_channel_fini(disp->master);
 403 }