| 1 | /* $NetBSD: nouveau_fbcon.c,v 1.2 2015/03/06 01:43:07 riastradh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright © 2007 David Airlie |
| 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 (including the next |
| 14 | * paragraph) shall be included in all copies or substantial portions of the |
| 15 | * Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 22 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 23 | * DEALINGS IN THE SOFTWARE. |
| 24 | * |
| 25 | * Authors: |
| 26 | * David Airlie |
| 27 | */ |
| 28 | |
| 29 | #include <sys/cdefs.h> |
| 30 | __KERNEL_RCSID(0, "$NetBSD: nouveau_fbcon.c,v 1.2 2015/03/06 01:43:07 riastradh Exp $" ); |
| 31 | |
| 32 | #include <linux/module.h> |
| 33 | #include <linux/kernel.h> |
| 34 | #include <linux/errno.h> |
| 35 | #include <linux/string.h> |
| 36 | #include <linux/mm.h> |
| 37 | #include <linux/tty.h> |
| 38 | #include <linux/sysrq.h> |
| 39 | #include <linux/delay.h> |
| 40 | #include <linux/fb.h> |
| 41 | #include <linux/init.h> |
| 42 | #include <linux/screen_info.h> |
| 43 | #include <linux/vga_switcheroo.h> |
| 44 | #include <linux/console.h> |
| 45 | |
| 46 | #include <drm/drmP.h> |
| 47 | #include <drm/drm_crtc.h> |
| 48 | #include <drm/drm_crtc_helper.h> |
| 49 | #include <drm/drm_fb_helper.h> |
| 50 | |
| 51 | #include "nouveau_drm.h" |
| 52 | #include "nouveau_gem.h" |
| 53 | #include "nouveau_bo.h" |
| 54 | #include "nouveau_fbcon.h" |
| 55 | #include "nouveau_chan.h" |
| 56 | |
| 57 | #include "nouveau_crtc.h" |
| 58 | |
| 59 | #ifdef __NetBSD__ |
| 60 | #include "nouveaufb.h" |
| 61 | #endif |
| 62 | |
| 63 | #include <core/client.h> |
| 64 | #include <core/device.h> |
| 65 | |
| 66 | #include <subdev/fb.h> |
| 67 | |
| 68 | #ifdef __NetBSD__ /* XXX nouveau fbaccel */ |
| 69 | static const int nouveau_nofbaccel = 1; |
| 70 | #else |
| 71 | MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration" ); |
| 72 | static int nouveau_nofbaccel = 0; |
| 73 | module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400); |
| 74 | |
| 75 | static void |
| 76 | nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| 77 | { |
| 78 | struct nouveau_fbdev *fbcon = info->par; |
| 79 | struct nouveau_drm *drm = nouveau_drm(fbcon->dev); |
| 80 | struct nouveau_device *device = nv_device(drm->device); |
| 81 | int ret; |
| 82 | |
| 83 | if (info->state != FBINFO_STATE_RUNNING) |
| 84 | return; |
| 85 | |
| 86 | ret = -ENODEV; |
| 87 | if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) && |
| 88 | mutex_trylock(&drm->client.mutex)) { |
| 89 | if (device->card_type < NV_50) |
| 90 | ret = nv04_fbcon_fillrect(info, rect); |
| 91 | else |
| 92 | if (device->card_type < NV_C0) |
| 93 | ret = nv50_fbcon_fillrect(info, rect); |
| 94 | else |
| 95 | ret = nvc0_fbcon_fillrect(info, rect); |
| 96 | mutex_unlock(&drm->client.mutex); |
| 97 | } |
| 98 | |
| 99 | if (ret == 0) |
| 100 | return; |
| 101 | |
| 102 | if (ret != -ENODEV) |
| 103 | nouveau_fbcon_gpu_lockup(info); |
| 104 | cfb_fillrect(info, rect); |
| 105 | } |
| 106 | |
| 107 | static void |
| 108 | nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image) |
| 109 | { |
| 110 | struct nouveau_fbdev *fbcon = info->par; |
| 111 | struct nouveau_drm *drm = nouveau_drm(fbcon->dev); |
| 112 | struct nouveau_device *device = nv_device(drm->device); |
| 113 | int ret; |
| 114 | |
| 115 | if (info->state != FBINFO_STATE_RUNNING) |
| 116 | return; |
| 117 | |
| 118 | ret = -ENODEV; |
| 119 | if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) && |
| 120 | mutex_trylock(&drm->client.mutex)) { |
| 121 | if (device->card_type < NV_50) |
| 122 | ret = nv04_fbcon_copyarea(info, image); |
| 123 | else |
| 124 | if (device->card_type < NV_C0) |
| 125 | ret = nv50_fbcon_copyarea(info, image); |
| 126 | else |
| 127 | ret = nvc0_fbcon_copyarea(info, image); |
| 128 | mutex_unlock(&drm->client.mutex); |
| 129 | } |
| 130 | |
| 131 | if (ret == 0) |
| 132 | return; |
| 133 | |
| 134 | if (ret != -ENODEV) |
| 135 | nouveau_fbcon_gpu_lockup(info); |
| 136 | cfb_copyarea(info, image); |
| 137 | } |
| 138 | |
| 139 | static void |
| 140 | nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) |
| 141 | { |
| 142 | struct nouveau_fbdev *fbcon = info->par; |
| 143 | struct nouveau_drm *drm = nouveau_drm(fbcon->dev); |
| 144 | struct nouveau_device *device = nv_device(drm->device); |
| 145 | int ret; |
| 146 | |
| 147 | if (info->state != FBINFO_STATE_RUNNING) |
| 148 | return; |
| 149 | |
| 150 | ret = -ENODEV; |
| 151 | if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) && |
| 152 | mutex_trylock(&drm->client.mutex)) { |
| 153 | if (device->card_type < NV_50) |
| 154 | ret = nv04_fbcon_imageblit(info, image); |
| 155 | else |
| 156 | if (device->card_type < NV_C0) |
| 157 | ret = nv50_fbcon_imageblit(info, image); |
| 158 | else |
| 159 | ret = nvc0_fbcon_imageblit(info, image); |
| 160 | mutex_unlock(&drm->client.mutex); |
| 161 | } |
| 162 | |
| 163 | if (ret == 0) |
| 164 | return; |
| 165 | |
| 166 | if (ret != -ENODEV) |
| 167 | nouveau_fbcon_gpu_lockup(info); |
| 168 | cfb_imageblit(info, image); |
| 169 | } |
| 170 | |
| 171 | static int |
| 172 | nouveau_fbcon_sync(struct fb_info *info) |
| 173 | { |
| 174 | struct nouveau_fbdev *fbcon = info->par; |
| 175 | struct nouveau_drm *drm = nouveau_drm(fbcon->dev); |
| 176 | struct nouveau_channel *chan = drm->channel; |
| 177 | int ret; |
| 178 | |
| 179 | if (!chan || !chan->accel_done || in_interrupt() || |
| 180 | info->state != FBINFO_STATE_RUNNING || |
| 181 | info->flags & FBINFO_HWACCEL_DISABLED) |
| 182 | return 0; |
| 183 | |
| 184 | if (!mutex_trylock(&drm->client.mutex)) |
| 185 | return 0; |
| 186 | |
| 187 | ret = nouveau_channel_idle(chan); |
| 188 | mutex_unlock(&drm->client.mutex); |
| 189 | if (ret) { |
| 190 | nouveau_fbcon_gpu_lockup(info); |
| 191 | return 0; |
| 192 | } |
| 193 | |
| 194 | chan->accel_done = false; |
| 195 | return 0; |
| 196 | } |
| 197 | |
| 198 | static struct fb_ops nouveau_fbcon_ops = { |
| 199 | .owner = THIS_MODULE, |
| 200 | .fb_check_var = drm_fb_helper_check_var, |
| 201 | .fb_set_par = drm_fb_helper_set_par, |
| 202 | .fb_fillrect = nouveau_fbcon_fillrect, |
| 203 | .fb_copyarea = nouveau_fbcon_copyarea, |
| 204 | .fb_imageblit = nouveau_fbcon_imageblit, |
| 205 | .fb_sync = nouveau_fbcon_sync, |
| 206 | .fb_pan_display = drm_fb_helper_pan_display, |
| 207 | .fb_blank = drm_fb_helper_blank, |
| 208 | .fb_setcmap = drm_fb_helper_setcmap, |
| 209 | .fb_debug_enter = drm_fb_helper_debug_enter, |
| 210 | .fb_debug_leave = drm_fb_helper_debug_leave, |
| 211 | }; |
| 212 | |
| 213 | static struct fb_ops nouveau_fbcon_sw_ops = { |
| 214 | .owner = THIS_MODULE, |
| 215 | .fb_check_var = drm_fb_helper_check_var, |
| 216 | .fb_set_par = drm_fb_helper_set_par, |
| 217 | .fb_fillrect = cfb_fillrect, |
| 218 | .fb_copyarea = cfb_copyarea, |
| 219 | .fb_imageblit = cfb_imageblit, |
| 220 | .fb_pan_display = drm_fb_helper_pan_display, |
| 221 | .fb_blank = drm_fb_helper_blank, |
| 222 | .fb_setcmap = drm_fb_helper_setcmap, |
| 223 | .fb_debug_enter = drm_fb_helper_debug_enter, |
| 224 | .fb_debug_leave = drm_fb_helper_debug_leave, |
| 225 | }; |
| 226 | #endif /* XXX nouveau fbaccel */ |
| 227 | |
| 228 | static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
| 229 | u16 blue, int regno) |
| 230 | { |
| 231 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); |
| 232 | |
| 233 | nv_crtc->lut.r[regno] = red; |
| 234 | nv_crtc->lut.g[regno] = green; |
| 235 | nv_crtc->lut.b[regno] = blue; |
| 236 | } |
| 237 | |
| 238 | static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
| 239 | u16 *blue, int regno) |
| 240 | { |
| 241 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); |
| 242 | |
| 243 | *red = nv_crtc->lut.r[regno]; |
| 244 | *green = nv_crtc->lut.g[regno]; |
| 245 | *blue = nv_crtc->lut.b[regno]; |
| 246 | } |
| 247 | |
| 248 | static void |
| 249 | nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *fbcon) |
| 250 | { |
| 251 | #ifdef __NetBSD__ /* XXX nouveau fbaccel */ |
| 252 | struct nouveau_bo *const nvbo = fbcon->nouveau_fb.nvbo; |
| 253 | |
| 254 | (void)memset(__UNVOLATILE(nvbo_kmap_obj_iovirtual(nvbo)), 0, |
| 255 | nvbo->bo.num_pages << PAGE_SHIFT); |
| 256 | #else |
| 257 | struct fb_info *info = fbcon->helper.fbdev; |
| 258 | struct fb_fillrect rect; |
| 259 | |
| 260 | /* Clear the entire fbcon. The drm will program every connector |
| 261 | * with it's preferred mode. If the sizes differ, one display will |
| 262 | * quite likely have garbage around the console. |
| 263 | */ |
| 264 | rect.dx = rect.dy = 0; |
| 265 | rect.width = info->var.xres_virtual; |
| 266 | rect.height = info->var.yres_virtual; |
| 267 | rect.color = 0; |
| 268 | rect.rop = ROP_COPY; |
| 269 | info->fbops->fb_fillrect(info, &rect); |
| 270 | #endif |
| 271 | } |
| 272 | |
| 273 | static int |
| 274 | nouveau_fbcon_create(struct drm_fb_helper *helper, |
| 275 | struct drm_fb_helper_surface_size *sizes) |
| 276 | { |
| 277 | struct nouveau_fbdev *fbcon = (struct nouveau_fbdev *)helper; |
| 278 | struct drm_device *dev = fbcon->dev; |
| 279 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 280 | struct nouveau_device *device = nv_device(drm->device); |
| 281 | #ifndef __NetBSD__ |
| 282 | struct fb_info *info; |
| 283 | #endif |
| 284 | struct drm_framebuffer *fb; |
| 285 | struct nouveau_framebuffer *nouveau_fb; |
| 286 | struct nouveau_channel *chan; |
| 287 | struct nouveau_bo *nvbo; |
| 288 | struct drm_mode_fb_cmd2 mode_cmd; |
| 289 | #ifndef __NetBSD__ |
| 290 | struct pci_dev *pdev = dev->pdev; |
| 291 | #endif |
| 292 | int size, ret; |
| 293 | |
| 294 | mode_cmd.width = sizes->surface_width; |
| 295 | mode_cmd.height = sizes->surface_height; |
| 296 | |
| 297 | mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3); |
| 298 | mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256); |
| 299 | |
| 300 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
| 301 | sizes->surface_depth); |
| 302 | |
| 303 | size = mode_cmd.pitches[0] * mode_cmd.height; |
| 304 | size = roundup(size, PAGE_SIZE); |
| 305 | |
| 306 | ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM, |
| 307 | 0, 0x0000, &nvbo); |
| 308 | if (ret) { |
| 309 | NV_ERROR(drm, "failed to allocate framebuffer\n" ); |
| 310 | goto out; |
| 311 | } |
| 312 | |
| 313 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM); |
| 314 | if (ret) { |
| 315 | NV_ERROR(drm, "failed to pin fb: %d\n" , ret); |
| 316 | goto out_unref; |
| 317 | } |
| 318 | |
| 319 | ret = nouveau_bo_map(nvbo); |
| 320 | if (ret) { |
| 321 | NV_ERROR(drm, "failed to map fb: %d\n" , ret); |
| 322 | goto out_unpin; |
| 323 | } |
| 324 | |
| 325 | chan = nouveau_nofbaccel ? NULL : drm->channel; |
| 326 | if (chan && device->card_type >= NV_50) { |
| 327 | ret = nouveau_bo_vma_add(nvbo, nv_client(chan->cli)->vm, |
| 328 | &fbcon->nouveau_fb.vma); |
| 329 | if (ret) { |
| 330 | NV_ERROR(drm, "failed to map fb into chan: %d\n" , ret); |
| 331 | chan = NULL; |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | #ifdef __NetBSD__ |
| 336 | nouveau_framebuffer_init(dev, &fbcon->nouveau_fb, &mode_cmd, nvbo); |
| 337 | nouveau_fb = &fbcon->nouveau_fb; |
| 338 | fb = &nouveau_fb->base; |
| 339 | |
| 340 | nouveau_fbcon_zfill(dev, fbcon); |
| 341 | |
| 342 | { |
| 343 | static const struct nouveaufb_attach_args zero_nfa; |
| 344 | struct nouveaufb_attach_args nfa = zero_nfa; |
| 345 | |
| 346 | nfa.nfa_fb_helper = helper; |
| 347 | nfa.nfa_fb_sizes = *sizes; |
| 348 | nfa.nfa_fb_ptr = nvbo_kmap_obj_iovirtual(nvbo); |
| 349 | nfa.nfa_fb_linebytes = mode_cmd.pitches[0]; |
| 350 | |
| 351 | helper->fbdev = config_found_ia(dev->dev, "nouveaufbbus" , &nfa, NULL); |
| 352 | if (helper->fbdev == NULL) { |
| 353 | DRM_ERROR("failed to attach nouveaufb\n" ); |
| 354 | goto out_unlock; |
| 355 | } |
| 356 | } |
| 357 | helper->fb = fb; |
| 358 | |
| 359 | return 0; |
| 360 | #else |
| 361 | mutex_lock(&dev->struct_mutex); |
| 362 | |
| 363 | info = framebuffer_alloc(0, &pdev->dev); |
| 364 | if (!info) { |
| 365 | ret = -ENOMEM; |
| 366 | goto out_unlock; |
| 367 | } |
| 368 | |
| 369 | ret = fb_alloc_cmap(&info->cmap, 256, 0); |
| 370 | if (ret) { |
| 371 | ret = -ENOMEM; |
| 372 | framebuffer_release(info); |
| 373 | goto out_unlock; |
| 374 | } |
| 375 | |
| 376 | info->par = fbcon; |
| 377 | |
| 378 | nouveau_framebuffer_init(dev, &fbcon->nouveau_fb, &mode_cmd, nvbo); |
| 379 | |
| 380 | nouveau_fb = &fbcon->nouveau_fb; |
| 381 | fb = &nouveau_fb->base; |
| 382 | |
| 383 | /* setup helper */ |
| 384 | fbcon->helper.fb = fb; |
| 385 | fbcon->helper.fbdev = info; |
| 386 | |
| 387 | strcpy(info->fix.id, "nouveaufb" ); |
| 388 | if (!chan) |
| 389 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED; |
| 390 | else |
| 391 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | |
| 392 | FBINFO_HWACCEL_FILLRECT | |
| 393 | FBINFO_HWACCEL_IMAGEBLIT; |
| 394 | info->flags |= FBINFO_CAN_FORCE_OUTPUT; |
| 395 | info->fbops = &nouveau_fbcon_sw_ops; |
| 396 | info->fix.smem_start = nvbo->bo.mem.bus.base + |
| 397 | nvbo->bo.mem.bus.offset; |
| 398 | info->fix.smem_len = size; |
| 399 | |
| 400 | info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo); |
| 401 | info->screen_size = size; |
| 402 | |
| 403 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
| 404 | drm_fb_helper_fill_var(info, &fbcon->helper, sizes->fb_width, sizes->fb_height); |
| 405 | |
| 406 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
| 407 | |
| 408 | mutex_unlock(&dev->struct_mutex); |
| 409 | |
| 410 | if (chan) { |
| 411 | ret = -ENODEV; |
| 412 | if (device->card_type < NV_50) |
| 413 | ret = nv04_fbcon_accel_init(info); |
| 414 | else |
| 415 | if (device->card_type < NV_C0) |
| 416 | ret = nv50_fbcon_accel_init(info); |
| 417 | else |
| 418 | ret = nvc0_fbcon_accel_init(info); |
| 419 | |
| 420 | if (ret == 0) |
| 421 | info->fbops = &nouveau_fbcon_ops; |
| 422 | } |
| 423 | |
| 424 | nouveau_fbcon_zfill(dev, fbcon); |
| 425 | |
| 426 | /* To allow resizeing without swapping buffers */ |
| 427 | NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n" , |
| 428 | nouveau_fb->base.width, nouveau_fb->base.height, |
| 429 | nvbo->bo.offset, nvbo); |
| 430 | |
| 431 | vga_switcheroo_client_fb_set(dev->pdev, info); |
| 432 | return 0; |
| 433 | #endif /* defined(__NetBSD__) */ |
| 434 | |
| 435 | out_unlock: |
| 436 | #ifndef __NetBSD__ |
| 437 | mutex_unlock(&dev->struct_mutex); |
| 438 | #endif |
| 439 | if (chan) |
| 440 | nouveau_bo_vma_del(nvbo, &fbcon->nouveau_fb.vma); |
| 441 | nouveau_bo_unmap(nvbo); |
| 442 | out_unpin: |
| 443 | nouveau_bo_unpin(nvbo); |
| 444 | out_unref: |
| 445 | nouveau_bo_ref(NULL, &nvbo); |
| 446 | out: |
| 447 | return ret; |
| 448 | } |
| 449 | |
| 450 | void |
| 451 | nouveau_fbcon_output_poll_changed(struct drm_device *dev) |
| 452 | { |
| 453 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 454 | if (drm->fbcon) |
| 455 | drm_fb_helper_hotplug_event(&drm->fbcon->helper); |
| 456 | } |
| 457 | |
| 458 | static int |
| 459 | nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon) |
| 460 | { |
| 461 | struct nouveau_framebuffer *nouveau_fb = &fbcon->nouveau_fb; |
| 462 | #ifndef __NetBSD__ |
| 463 | struct fb_info *info; |
| 464 | #endif |
| 465 | |
| 466 | if (fbcon->helper.fbdev) { |
| 467 | #ifdef __NetBSD__ |
| 468 | int ret; |
| 469 | |
| 470 | /* XXX errno NetBSD->Linux */ |
| 471 | ret = -config_detach(fbcon->helper.fbdev, DETACH_FORCE); |
| 472 | if (ret) |
| 473 | DRM_ERROR("failed to detach nouveaufb: %d\n" , ret); |
| 474 | fbcon->helper.fbdev = NULL; |
| 475 | #else |
| 476 | info = fbcon->helper.fbdev; |
| 477 | unregister_framebuffer(info); |
| 478 | if (info->cmap.len) |
| 479 | fb_dealloc_cmap(&info->cmap); |
| 480 | framebuffer_release(info); |
| 481 | #endif |
| 482 | } |
| 483 | |
| 484 | if (nouveau_fb->nvbo) { |
| 485 | nouveau_bo_unmap(nouveau_fb->nvbo); |
| 486 | nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma); |
| 487 | nouveau_bo_unpin(nouveau_fb->nvbo); |
| 488 | drm_gem_object_unreference_unlocked(&nouveau_fb->nvbo->gem); |
| 489 | nouveau_fb->nvbo = NULL; |
| 490 | } |
| 491 | drm_fb_helper_fini(&fbcon->helper); |
| 492 | drm_framebuffer_unregister_private(&nouveau_fb->base); |
| 493 | drm_framebuffer_cleanup(&nouveau_fb->base); |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | #ifndef __NetBSD__ /* XXX nouveau fbaccel */ |
| 498 | void nouveau_fbcon_gpu_lockup(struct fb_info *info) |
| 499 | { |
| 500 | struct nouveau_fbdev *fbcon = info->par; |
| 501 | struct nouveau_drm *drm = nouveau_drm(fbcon->dev); |
| 502 | |
| 503 | NV_ERROR(drm, "GPU lockup - switching to software fbcon\n" ); |
| 504 | info->flags |= FBINFO_HWACCEL_DISABLED; |
| 505 | } |
| 506 | #endif |
| 507 | |
| 508 | static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { |
| 509 | .gamma_set = nouveau_fbcon_gamma_set, |
| 510 | .gamma_get = nouveau_fbcon_gamma_get, |
| 511 | .fb_probe = nouveau_fbcon_create, |
| 512 | }; |
| 513 | |
| 514 | |
| 515 | int |
| 516 | nouveau_fbcon_init(struct drm_device *dev) |
| 517 | { |
| 518 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 519 | struct nouveau_fb *pfb = nouveau_fb(drm->device); |
| 520 | struct nouveau_fbdev *fbcon; |
| 521 | int preferred_bpp; |
| 522 | int ret; |
| 523 | |
| 524 | if (!dev->mode_config.num_crtc || |
| 525 | (dev->pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA) |
| 526 | return 0; |
| 527 | |
| 528 | fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL); |
| 529 | if (!fbcon) |
| 530 | return -ENOMEM; |
| 531 | |
| 532 | fbcon->dev = dev; |
| 533 | drm->fbcon = fbcon; |
| 534 | fbcon->helper.funcs = &nouveau_fbcon_helper_funcs; |
| 535 | |
| 536 | ret = drm_fb_helper_init(dev, &fbcon->helper, |
| 537 | dev->mode_config.num_crtc, 4); |
| 538 | if (ret) { |
| 539 | kfree(fbcon); |
| 540 | return ret; |
| 541 | } |
| 542 | |
| 543 | drm_fb_helper_single_add_all_connectors(&fbcon->helper); |
| 544 | |
| 545 | if (pfb->ram->size <= 32 * 1024 * 1024) |
| 546 | preferred_bpp = 8; |
| 547 | else |
| 548 | if (pfb->ram->size <= 64 * 1024 * 1024) |
| 549 | preferred_bpp = 16; |
| 550 | else |
| 551 | preferred_bpp = 32; |
| 552 | |
| 553 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
| 554 | drm_helper_disable_unused_functions(dev); |
| 555 | |
| 556 | drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp); |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | void |
| 561 | nouveau_fbcon_fini(struct drm_device *dev) |
| 562 | { |
| 563 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 564 | |
| 565 | if (!drm->fbcon) |
| 566 | return; |
| 567 | |
| 568 | nouveau_fbcon_destroy(dev, drm->fbcon); |
| 569 | kfree(drm->fbcon); |
| 570 | drm->fbcon = NULL; |
| 571 | } |
| 572 | |
| 573 | void |
| 574 | nouveau_fbcon_save_disable_accel(struct drm_device *dev) |
| 575 | { |
| 576 | #ifndef __NetBSD__ /* XXX nouveau fbaccel */ |
| 577 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 578 | if (drm->fbcon) { |
| 579 | drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags; |
| 580 | drm->fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED; |
| 581 | } |
| 582 | #endif |
| 583 | } |
| 584 | |
| 585 | void |
| 586 | nouveau_fbcon_restore_accel(struct drm_device *dev) |
| 587 | { |
| 588 | #ifndef __NetBSD__ /* XXX nouveau fbaccel */ |
| 589 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 590 | if (drm->fbcon) { |
| 591 | drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags; |
| 592 | } |
| 593 | #endif |
| 594 | } |
| 595 | |
| 596 | void |
| 597 | nouveau_fbcon_set_suspend(struct drm_device *dev, int state) |
| 598 | { |
| 599 | #ifndef __NetBSD__ |
| 600 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 601 | if (drm->fbcon) { |
| 602 | console_lock(); |
| 603 | if (state == 1) |
| 604 | nouveau_fbcon_save_disable_accel(dev); |
| 605 | fb_set_suspend(drm->fbcon->helper.fbdev, state); |
| 606 | if (state == 0) |
| 607 | nouveau_fbcon_restore_accel(dev); |
| 608 | console_unlock(); |
| 609 | } |
| 610 | #endif |
| 611 | } |
| 612 | |
| 613 | void |
| 614 | nouveau_fbcon_zfill_all(struct drm_device *dev) |
| 615 | { |
| 616 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 617 | if (drm->fbcon) { |
| 618 | nouveau_fbcon_zfill(dev, drm->fbcon); |
| 619 | } |
| 620 | } |
| 621 | |