1/* 2 * Copyright © 2013 Red Hat 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 (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: 24 * David Airlie 25 */ 26#include <linux/module.h> 27#include <linux/fb.h> 28 29#include "drmP.h" 30#include "drm/drm.h" 31#include "drm/drm_crtc.h" 32#include "drm/drm_crtc_helper.h" 33#include "qxl_drv.h" 34 35#include "qxl_object.h" 36#include "drm_fb_helper.h" 37 38#define QXL_DIRTY_DELAY (HZ / 30) 39 40#define QXL_FB_OP_FILLRECT 1 41#define QXL_FB_OP_COPYAREA 2 42#define QXL_FB_OP_IMAGEBLIT 3 43 44struct qxl_fb_op { 45 struct list_head head; 46 int op_type; 47 union { 48 struct fb_fillrect fr; 49 struct fb_copyarea ca; 50 struct fb_image ib; 51 } op; 52 void *img_data; 53}; 54 55struct qxl_fbdev { 56 struct drm_fb_helper helper; 57 struct qxl_framebuffer qfb; 58 struct list_head fbdev_list; 59 struct qxl_device *qdev; 60 61 spinlock_t delayed_ops_lock; 62 struct list_head delayed_ops; 63 void *shadow; 64 int size; 65 66 /* dirty memory logging */ 67 struct { 68 spinlock_t lock; 69 bool active; 70 unsigned x1; 71 unsigned y1; 72 unsigned x2; 73 unsigned y2; 74 } dirty; 75}; 76 77static void qxl_fb_image_init(struct qxl_fb_image *qxl_fb_image, 78 struct qxl_device *qdev, struct fb_info *info, 79 const struct fb_image *image) 80{ 81 qxl_fb_image->qdev = qdev; 82 if (info) { 83 qxl_fb_image->visual = info->fix.visual; 84 if (qxl_fb_image->visual == FB_VISUAL_TRUECOLOR || 85 qxl_fb_image->visual == FB_VISUAL_DIRECTCOLOR) 86 memcpy(&qxl_fb_image->pseudo_palette, 87 info->pseudo_palette, 88 sizeof(qxl_fb_image->pseudo_palette)); 89 } else { 90 /* fallback */ 91 if (image->depth == 1) 92 qxl_fb_image->visual = FB_VISUAL_MONO10; 93 else 94 qxl_fb_image->visual = FB_VISUAL_DIRECTCOLOR; 95 } 96 if (image) { 97 memcpy(&qxl_fb_image->fb_image, image, 98 sizeof(qxl_fb_image->fb_image)); 99 } 100} 101 102static void qxl_fb_dirty_flush(struct fb_info *info) 103{ 104 struct qxl_fbdev *qfbdev = info->par; 105 struct qxl_device *qdev = qfbdev->qdev; 106 struct qxl_fb_image qxl_fb_image; 107 struct fb_image *image = &qxl_fb_image.fb_image; 108 u32 x1, x2, y1, y2; 109 110 /* TODO: hard coding 32 bpp */ 111 int stride = qfbdev->qfb.base.pitches[0]; 112 113 x1 = qfbdev->dirty.x1; 114 x2 = qfbdev->dirty.x2; 115 y1 = qfbdev->dirty.y1; 116 y2 = qfbdev->dirty.y2; 117 /* 118 * we are using a shadow draw buffer, at qdev->surface0_shadow 119 */ 120 qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", x1, x2, y1, y2); 121 image->dx = x1; 122 image->dy = y1; 123 image->width = x2 - x1; 124 image->height = y2 - y1; 125 image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized 126 warnings */ 127 image->bg_color = 0; 128 image->depth = 32; /* TODO: take from somewhere? */ 129 image->cmap.start = 0; 130 image->cmap.len = 0; 131 image->cmap.red = NULL; 132 image->cmap.green = NULL; 133 image->cmap.blue = NULL; 134 image->cmap.transp = NULL; 135 image->data = qfbdev->shadow + (x1 * 4) + (stride * y1); 136 137 qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL); 138 qxl_draw_opaque_fb(&qxl_fb_image, stride); 139 qfbdev->dirty.x1 = 0; 140 qfbdev->dirty.x2 = 0; 141 qfbdev->dirty.y1 = 0; 142 qfbdev->dirty.y2 = 0; 143} 144 145static void qxl_deferred_io(struct fb_info *info, 146 struct list_head *pagelist) 147{ 148 struct qxl_fbdev *qfbdev = info->par; 149 unsigned long start, end, min, max; 150 struct page *page; 151 int y1, y2; 152 153 min = ULONG_MAX; 154 max = 0; 155 list_for_each_entry(page, pagelist, lru) { 156 start = page->index << PAGE_SHIFT; 157 end = start + PAGE_SIZE - 1; 158 min = min(min, start); 159 max = max(max, end); 160 } 161 162 if (min < max) { 163 y1 = min / info->fix.line_length; 164 y2 = (max / info->fix.line_length) + 1; 165 166 /* TODO: add spin lock? */ 167 /* spin_lock_irqsave(&qfbdev->dirty.lock, flags); */ 168 qfbdev->dirty.x1 = 0; 169 qfbdev->dirty.y1 = y1; 170 qfbdev->dirty.x2 = info->var.xres; 171 qfbdev->dirty.y2 = y2; 172 /* spin_unlock_irqrestore(&qfbdev->dirty.lock, flags); */ 173 } 174 175 qxl_fb_dirty_flush(info); 176}; 177 178 179static struct fb_deferred_io qxl_defio = { 180 .delay = QXL_DIRTY_DELAY, 181 .deferred_io = qxl_deferred_io, 182}; 183 184static void qxl_fb_delayed_fillrect(struct qxl_fbdev *qfbdev, 185 const struct fb_fillrect *fb_rect) 186{ 187 struct qxl_fb_op *op; 188 unsigned long flags; 189 190 op = kmalloc(sizeof(struct qxl_fb_op), GFP_ATOMIC | __GFP_NOWARN); 191 if (!op) 192 return; 193 194 op->op.fr = *fb_rect; 195 op->img_data = NULL; 196 op->op_type = QXL_FB_OP_FILLRECT; 197 198 spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); 199 list_add_tail(&op->head, &qfbdev->delayed_ops); 200 spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); 201} 202 203static void qxl_fb_delayed_copyarea(struct qxl_fbdev *qfbdev, 204 const struct fb_copyarea *fb_copy) 205{ 206 struct qxl_fb_op *op; 207 unsigned long flags; 208 209 op = kmalloc(sizeof(struct qxl_fb_op), GFP_ATOMIC | __GFP_NOWARN); 210 if (!op) 211 return; 212 213 op->op.ca = *fb_copy; 214 op->img_data = NULL; 215 op->op_type = QXL_FB_OP_COPYAREA; 216 217 spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); 218 list_add_tail(&op->head, &qfbdev->delayed_ops); 219 spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); 220} 221 222static void qxl_fb_delayed_imageblit(struct qxl_fbdev *qfbdev, 223 const struct fb_image *fb_image) 224{ 225 struct qxl_fb_op *op; 226 unsigned long flags; 227 uint32_t size = fb_image->width * fb_image->height * (fb_image->depth >= 8 ? fb_image->depth / 8 : 1); 228 229 op = kmalloc(sizeof(struct qxl_fb_op) + size, GFP_ATOMIC | __GFP_NOWARN); 230 if (!op) 231 return; 232 233 op->op.ib = *fb_image; 234 op->img_data = (void *)(op + 1); 235 op->op_type = QXL_FB_OP_IMAGEBLIT; 236 237 memcpy(op->img_data, fb_image->data, size); 238 239 op->op.ib.data = op->img_data; 240 spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); 241 list_add_tail(&op->head, &qfbdev->delayed_ops); 242 spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); 243} 244 245static void qxl_fb_fillrect_internal(struct fb_info *info, 246 const struct fb_fillrect *fb_rect) 247{ 248 struct qxl_fbdev *qfbdev = info->par; 249 struct qxl_device *qdev = qfbdev->qdev; 250 struct qxl_rect rect; 251 uint32_t color; 252 int x = fb_rect->dx; 253 int y = fb_rect->dy; 254 int width = fb_rect->width; 255 int height = fb_rect->height; 256 uint16_t rop; 257 struct qxl_draw_fill qxl_draw_fill_rec; 258 259 if (info->fix.visual == FB_VISUAL_TRUECOLOR || 260 info->fix.visual == FB_VISUAL_DIRECTCOLOR) 261 color = ((u32 *) (info->pseudo_palette))[fb_rect->color]; 262 else 263 color = fb_rect->color; 264 rect.left = x; 265 rect.right = x + width; 266 rect.top = y; 267 rect.bottom = y + height; 268 switch (fb_rect->rop) { 269 case ROP_XOR: 270 rop = SPICE_ROPD_OP_XOR; 271 break; 272 case ROP_COPY: 273 rop = SPICE_ROPD_OP_PUT; 274 break; 275 default: 276 pr_err("qxl_fb_fillrect(): unknown rop, " 277 "defaulting to SPICE_ROPD_OP_PUT\n"); 278 rop = SPICE_ROPD_OP_PUT; 279 } 280 qxl_draw_fill_rec.qdev = qdev; 281 qxl_draw_fill_rec.rect = rect; 282 qxl_draw_fill_rec.color = color; 283 qxl_draw_fill_rec.rop = rop; 284 285 qxl_draw_fill(&qxl_draw_fill_rec); 286} 287 288static void qxl_fb_fillrect(struct fb_info *info, 289 const struct fb_fillrect *fb_rect) 290{ 291 struct qxl_fbdev *qfbdev = info->par; 292 struct qxl_device *qdev = qfbdev->qdev; 293 294 if (!drm_can_sleep()) { 295 qxl_fb_delayed_fillrect(qfbdev, fb_rect); 296 schedule_work(&qdev->fb_work); 297 return; 298 } 299 /* make sure any previous work is done */ 300 flush_work(&qdev->fb_work); 301 qxl_fb_fillrect_internal(info, fb_rect); 302} 303 304static void qxl_fb_copyarea_internal(struct fb_info *info, 305 const struct fb_copyarea *region) 306{ 307 struct qxl_fbdev *qfbdev = info->par; 308 309 qxl_draw_copyarea(qfbdev->qdev, 310 region->width, region->height, 311 region->sx, region->sy, 312 region->dx, region->dy); 313} 314 315static void qxl_fb_copyarea(struct fb_info *info, 316 const struct fb_copyarea *region) 317{ 318 struct qxl_fbdev *qfbdev = info->par; 319 struct qxl_device *qdev = qfbdev->qdev; 320 321 if (!drm_can_sleep()) { 322 qxl_fb_delayed_copyarea(qfbdev, region); 323 schedule_work(&qdev->fb_work); 324 return; 325 } 326 /* make sure any previous work is done */ 327 flush_work(&qdev->fb_work); 328 qxl_fb_copyarea_internal(info, region); 329} 330 331static void qxl_fb_imageblit_safe(struct qxl_fb_image *qxl_fb_image) 332{ 333 qxl_draw_opaque_fb(qxl_fb_image, 0); 334} 335 336static void qxl_fb_imageblit_internal(struct fb_info *info, 337 const struct fb_image *image) 338{ 339 struct qxl_fbdev *qfbdev = info->par; 340 struct qxl_fb_image qxl_fb_image; 341 342 /* ensure proper order rendering operations - TODO: must do this 343 * for everything. */ 344 qxl_fb_image_init(&qxl_fb_image, qfbdev->qdev, info, image); 345 qxl_fb_imageblit_safe(&qxl_fb_image); 346} 347 348static void qxl_fb_imageblit(struct fb_info *info, 349 const struct fb_image *image) 350{ 351 struct qxl_fbdev *qfbdev = info->par; 352 struct qxl_device *qdev = qfbdev->qdev; 353 354 if (!drm_can_sleep()) { 355 qxl_fb_delayed_imageblit(qfbdev, image); 356 schedule_work(&qdev->fb_work); 357 return; 358 } 359 /* make sure any previous work is done */ 360 flush_work(&qdev->fb_work); 361 qxl_fb_imageblit_internal(info, image); 362} 363 364static void qxl_fb_work(struct work_struct *work) 365{ 366 struct qxl_device *qdev = container_of(work, struct qxl_device, fb_work); 367 unsigned long flags; 368 struct qxl_fb_op *entry, *tmp; 369 struct qxl_fbdev *qfbdev = qdev->mode_info.qfbdev; 370 371 /* since the irq context just adds entries to the end of the 372 list dropping the lock should be fine, as entry isn't modified 373 in the operation code */ 374 spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); 375 list_for_each_entry_safe(entry, tmp, &qfbdev->delayed_ops, head) { 376 spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); 377 switch (entry->op_type) { 378 case QXL_FB_OP_FILLRECT: 379 qxl_fb_fillrect_internal(qfbdev->helper.fbdev, &entry->op.fr); 380 break; 381 case QXL_FB_OP_COPYAREA: 382 qxl_fb_copyarea_internal(qfbdev->helper.fbdev, &entry->op.ca); 383 break; 384 case QXL_FB_OP_IMAGEBLIT: 385 qxl_fb_imageblit_internal(qfbdev->helper.fbdev, &entry->op.ib); 386 break; 387 } 388 spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); 389 list_del(&entry->head); 390 kfree(entry); 391 } 392 spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); 393} 394 395int qxl_fb_init(struct qxl_device *qdev) 396{ 397 INIT_WORK(&qdev->fb_work, qxl_fb_work); 398 return 0; 399} 400 401static struct fb_ops qxlfb_ops = { 402 .owner = THIS_MODULE, 403 .fb_check_var = drm_fb_helper_check_var, 404 .fb_set_par = drm_fb_helper_set_par, /* TODO: copy vmwgfx */ 405 .fb_fillrect = qxl_fb_fillrect, 406 .fb_copyarea = qxl_fb_copyarea, 407 .fb_imageblit = qxl_fb_imageblit, 408 .fb_pan_display = drm_fb_helper_pan_display, 409 .fb_blank = drm_fb_helper_blank, 410 .fb_setcmap = drm_fb_helper_setcmap, 411 .fb_debug_enter = drm_fb_helper_debug_enter, 412 .fb_debug_leave = drm_fb_helper_debug_leave, 413}; 414 415static void qxlfb_destroy_pinned_object(struct drm_gem_object *gobj) 416{ 417 struct qxl_bo *qbo = gem_to_qxl_bo(gobj); 418 int ret; 419 420 ret = qxl_bo_reserve(qbo, false); 421 if (likely(ret == 0)) { 422 qxl_bo_kunmap(qbo); 423 qxl_bo_unpin(qbo); 424 qxl_bo_unreserve(qbo); 425 } 426 drm_gem_object_unreference_unlocked(gobj); 427} 428 429int qxl_get_handle_for_primary_fb(struct qxl_device *qdev, 430 struct drm_file *file_priv, 431 uint32_t *handle) 432{ 433 int r; 434 struct drm_gem_object *gobj = qdev->fbdev_qfb->obj; 435 436 BUG_ON(!gobj); 437 /* drm_get_handle_create adds a reference - good */ 438 r = drm_gem_handle_create(file_priv, gobj, handle); 439 if (r) 440 return r; 441 return 0; 442} 443 444static int qxlfb_create_pinned_object(struct qxl_fbdev *qfbdev, 445 struct drm_mode_fb_cmd2 *mode_cmd, 446 struct drm_gem_object **gobj_p) 447{ 448 struct qxl_device *qdev = qfbdev->qdev; 449 struct drm_gem_object *gobj = NULL; 450 struct qxl_bo *qbo = NULL; 451 int ret; 452 int aligned_size, size; 453 int height = mode_cmd->height; 454 int bpp; 455 int depth; 456 457 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &bpp, &depth); 458 459 size = mode_cmd->pitches[0] * height; 460 aligned_size = ALIGN(size, PAGE_SIZE); 461 /* TODO: unallocate and reallocate surface0 for real. Hack to just 462 * have a large enough surface0 for 1024x768 Xorg 32bpp mode */ 463 ret = qxl_gem_object_create(qdev, aligned_size, 0, 464 QXL_GEM_DOMAIN_SURFACE, 465 false, /* is discardable */ 466 false, /* is kernel (false means device) */ 467 NULL, 468 &gobj); 469 if (ret) { 470 pr_err("failed to allocate framebuffer (%d)\n", 471 aligned_size); 472 return -ENOMEM; 473 } 474 qbo = gem_to_qxl_bo(gobj); 475 476 qbo->surf.width = mode_cmd->width; 477 qbo->surf.height = mode_cmd->height; 478 qbo->surf.stride = mode_cmd->pitches[0]; 479 qbo->surf.format = SPICE_SURFACE_FMT_32_xRGB; 480 ret = qxl_bo_reserve(qbo, false); 481 if (unlikely(ret != 0)) 482 goto out_unref; 483 ret = qxl_bo_pin(qbo, QXL_GEM_DOMAIN_SURFACE, NULL); 484 if (ret) { 485 qxl_bo_unreserve(qbo); 486 goto out_unref; 487 } 488 ret = qxl_bo_kmap(qbo, NULL); 489 qxl_bo_unreserve(qbo); /* unreserve, will be mmaped */ 490 if (ret) 491 goto out_unref; 492 493 *gobj_p = gobj; 494 return 0; 495out_unref: 496 qxlfb_destroy_pinned_object(gobj); 497 *gobj_p = NULL; 498 return ret; 499} 500 501static int qxlfb_create(struct qxl_fbdev *qfbdev, 502 struct drm_fb_helper_surface_size *sizes) 503{ 504 struct qxl_device *qdev = qfbdev->qdev; 505 struct fb_info *info; 506 struct drm_framebuffer *fb = NULL; 507 struct drm_mode_fb_cmd2 mode_cmd; 508 struct drm_gem_object *gobj = NULL; 509 struct qxl_bo *qbo = NULL; 510 struct device *device = &qdev->pdev->dev; 511 int ret; 512 int size; 513 int bpp = sizes->surface_bpp; 514 int depth = sizes->surface_depth; 515 void *shadow; 516 517 mode_cmd.width = sizes->surface_width; 518 mode_cmd.height = sizes->surface_height; 519 520 mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 1) / 8), 64); 521 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); 522 523 ret = qxlfb_create_pinned_object(qfbdev, &mode_cmd, &gobj); 524 qbo = gem_to_qxl_bo(gobj); 525 QXL_INFO(qdev, "%s: %dx%d %d\n", __func__, mode_cmd.width, 526 mode_cmd.height, mode_cmd.pitches[0]); 527 528 shadow = vmalloc(mode_cmd.pitches[0] * mode_cmd.height); 529 /* TODO: what's the usual response to memory allocation errors? */ 530 BUG_ON(!shadow); 531 QXL_INFO(qdev, 532 "surface0 at gpu offset %lld, mmap_offset %lld (virt %p, shadow %p)\n", 533 qxl_bo_gpu_offset(qbo), 534 qxl_bo_mmap_offset(qbo), 535 qbo->kptr, 536 shadow); 537 size = mode_cmd.pitches[0] * mode_cmd.height; 538 539 info = framebuffer_alloc(0, device); 540 if (info == NULL) { 541 ret = -ENOMEM; 542 goto out_unref; 543 } 544 545 info->par = qfbdev; 546 547 qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj); 548 549 fb = &qfbdev->qfb.base; 550 551 /* setup helper with fb data */ 552 qfbdev->helper.fb = fb; 553 qfbdev->helper.fbdev = info; 554 qfbdev->shadow = shadow; 555 strcpy(info->fix.id, "qxldrmfb"); 556 557 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); 558 559 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT; 560 info->fbops = &qxlfb_ops; 561 562 /* 563 * TODO: using gobj->size in various places in this function. Not sure 564 * what the difference between the different sizes is. 565 */ 566 info->fix.smem_start = qdev->vram_base; /* TODO - correct? */ 567 info->fix.smem_len = gobj->size; 568 info->screen_base = qfbdev->shadow; 569 info->screen_size = gobj->size; 570 571 drm_fb_helper_fill_var(info, &qfbdev->helper, sizes->fb_width, 572 sizes->fb_height); 573 574 /* setup aperture base/size for vesafb takeover */ 575 info->apertures = alloc_apertures(1); 576 if (!info->apertures) { 577 ret = -ENOMEM; 578 goto out_unref; 579 } 580 info->apertures->ranges[0].base = qdev->ddev->mode_config.fb_base; 581 info->apertures->ranges[0].size = qdev->vram_size; 582 583 info->fix.mmio_start = 0; 584 info->fix.mmio_len = 0; 585 586 if (info->screen_base == NULL) { 587 ret = -ENOSPC; 588 goto out_unref; 589 } 590 591 ret = fb_alloc_cmap(&info->cmap, 256, 0); 592 if (ret) { 593 ret = -ENOMEM; 594 goto out_unref; 595 } 596 597 info->fbdefio = &qxl_defio; 598 fb_deferred_io_init(info); 599 600 qdev->fbdev_info = info; 601 qdev->fbdev_qfb = &qfbdev->qfb; 602 DRM_INFO("fb mappable at 0x%lX, size %lu\n", info->fix.smem_start, (unsigned long)info->screen_size); 603 DRM_INFO("fb: depth %d, pitch %d, width %d, height %d\n", fb->depth, fb->pitches[0], fb->width, fb->height); 604 return 0; 605 606out_unref: 607 if (qbo) { 608 ret = qxl_bo_reserve(qbo, false); 609 if (likely(ret == 0)) { 610 qxl_bo_kunmap(qbo); 611 qxl_bo_unpin(qbo); 612 qxl_bo_unreserve(qbo); 613 } 614 } 615 if (fb && ret) { 616 drm_gem_object_unreference(gobj); 617 drm_framebuffer_cleanup(fb); 618 kfree(fb); 619 } 620 drm_gem_object_unreference(gobj); 621 return ret; 622} 623 624static int qxl_fb_find_or_create_single( 625 struct drm_fb_helper *helper, 626 struct drm_fb_helper_surface_size *sizes) 627{ 628 struct qxl_fbdev *qfbdev = 629 container_of(helper, struct qxl_fbdev, helper); 630 int new_fb = 0; 631 int ret; 632 633 if (!helper->fb) { 634 ret = qxlfb_create(qfbdev, sizes); 635 if (ret) 636 return ret; 637 new_fb = 1; 638 } 639 return new_fb; 640} 641 642static int qxl_fbdev_destroy(struct drm_device *dev, struct qxl_fbdev *qfbdev) 643{ 644 struct fb_info *info; 645 struct qxl_framebuffer *qfb = &qfbdev->qfb; 646 647 if (qfbdev->helper.fbdev) { 648 info = qfbdev->helper.fbdev; 649 650 unregister_framebuffer(info); 651 framebuffer_release(info); 652 } 653 if (qfb->obj) { 654 qxlfb_destroy_pinned_object(qfb->obj); 655 qfb->obj = NULL; 656 } 657 drm_fb_helper_fini(&qfbdev->helper); 658 vfree(qfbdev->shadow); 659 drm_framebuffer_cleanup(&qfb->base); 660 661 return 0; 662} 663 664static const struct drm_fb_helper_funcs qxl_fb_helper_funcs = { 665 .fb_probe = qxl_fb_find_or_create_single, 666}; 667 668int qxl_fbdev_init(struct qxl_device *qdev) 669{ 670 struct qxl_fbdev *qfbdev; 671 int bpp_sel = 32; /* TODO: parameter from somewhere? */ 672 int ret; 673 674 qfbdev = kzalloc(sizeof(struct qxl_fbdev), GFP_KERNEL); 675 if (!qfbdev) 676 return -ENOMEM; 677 678 qfbdev->qdev = qdev; 679 qdev->mode_info.qfbdev = qfbdev; 680 spin_lock_init(&qfbdev->delayed_ops_lock); 681 INIT_LIST_HEAD(&qfbdev->delayed_ops); 682 683 drm_fb_helper_prepare(qdev->ddev, &qfbdev->helper, 684 &qxl_fb_helper_funcs); 685 686 ret = drm_fb_helper_init(qdev->ddev, &qfbdev->helper, 687 qxl_num_crtc /* num_crtc - QXL supports just 1 */, 688 QXLFB_CONN_LIMIT); 689 if (ret) { 690 kfree(qfbdev); 691 return ret; 692 } 693 694 drm_fb_helper_single_add_all_connectors(&qfbdev->helper); 695 drm_fb_helper_initial_config(&qfbdev->helper, bpp_sel); 696 return 0; 697} 698 699void qxl_fbdev_fini(struct qxl_device *qdev) 700{ 701 if (!qdev->mode_info.qfbdev) 702 return; 703 704 qxl_fbdev_destroy(qdev->ddev, qdev->mode_info.qfbdev); 705 kfree(qdev->mode_info.qfbdev); 706 qdev->mode_info.qfbdev = NULL; 707} 708 709void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state) 710{ 711 fb_set_suspend(qdev->mode_info.qfbdev->helper.fbdev, state); 712} 713 714bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj) 715{ 716 if (qobj == gem_to_qxl_bo(qdev->mode_info.qfbdev->qfb.obj)) 717 return true; 718 return false; 719} 720