Dave Airlie | f64122c | 2013-02-25 14:47:55 +1000 | [diff] [blame] | 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 | struct qxl_fbdev { |
| 41 | struct drm_fb_helper helper; |
| 42 | struct qxl_framebuffer qfb; |
| 43 | struct list_head fbdev_list; |
| 44 | struct qxl_device *qdev; |
| 45 | |
| 46 | void *shadow; |
| 47 | int size; |
| 48 | |
| 49 | /* dirty memory logging */ |
| 50 | struct { |
| 51 | spinlock_t lock; |
| 52 | bool active; |
| 53 | unsigned x1; |
| 54 | unsigned y1; |
| 55 | unsigned x2; |
| 56 | unsigned y2; |
| 57 | } dirty; |
| 58 | }; |
| 59 | |
| 60 | static void qxl_fb_image_init(struct qxl_fb_image *qxl_fb_image, |
| 61 | struct qxl_device *qdev, struct fb_info *info, |
| 62 | const struct fb_image *image) |
| 63 | { |
| 64 | qxl_fb_image->qdev = qdev; |
| 65 | if (info) { |
| 66 | qxl_fb_image->visual = info->fix.visual; |
| 67 | if (qxl_fb_image->visual == FB_VISUAL_TRUECOLOR || |
| 68 | qxl_fb_image->visual == FB_VISUAL_DIRECTCOLOR) |
| 69 | memcpy(&qxl_fb_image->pseudo_palette, |
| 70 | info->pseudo_palette, |
| 71 | sizeof(qxl_fb_image->pseudo_palette)); |
| 72 | } else { |
| 73 | /* fallback */ |
| 74 | if (image->depth == 1) |
| 75 | qxl_fb_image->visual = FB_VISUAL_MONO10; |
| 76 | else |
| 77 | qxl_fb_image->visual = FB_VISUAL_DIRECTCOLOR; |
| 78 | } |
| 79 | if (image) { |
| 80 | memcpy(&qxl_fb_image->fb_image, image, |
| 81 | sizeof(qxl_fb_image->fb_image)); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | static void qxl_fb_dirty_flush(struct fb_info *info) |
| 86 | { |
| 87 | struct qxl_fbdev *qfbdev = info->par; |
| 88 | struct qxl_device *qdev = qfbdev->qdev; |
| 89 | struct qxl_fb_image qxl_fb_image; |
| 90 | struct fb_image *image = &qxl_fb_image.fb_image; |
| 91 | u32 x1, x2, y1, y2; |
| 92 | |
| 93 | /* TODO: hard coding 32 bpp */ |
| 94 | int stride = qfbdev->qfb.base.pitches[0] * 4; |
| 95 | |
| 96 | x1 = qfbdev->dirty.x1; |
| 97 | x2 = qfbdev->dirty.x2; |
| 98 | y1 = qfbdev->dirty.y1; |
| 99 | y2 = qfbdev->dirty.y2; |
| 100 | /* |
| 101 | * we are using a shadow draw buffer, at qdev->surface0_shadow |
| 102 | */ |
| 103 | qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", x1, x2, y1, y2); |
| 104 | image->dx = x1; |
| 105 | image->dy = y1; |
| 106 | image->width = x2 - x1; |
| 107 | image->height = y2 - y1; |
| 108 | image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized |
| 109 | warnings */ |
| 110 | image->bg_color = 0; |
| 111 | image->depth = 32; /* TODO: take from somewhere? */ |
| 112 | image->cmap.start = 0; |
| 113 | image->cmap.len = 0; |
| 114 | image->cmap.red = NULL; |
| 115 | image->cmap.green = NULL; |
| 116 | image->cmap.blue = NULL; |
| 117 | image->cmap.transp = NULL; |
| 118 | image->data = qfbdev->shadow + (x1 * 4) + (stride * y1); |
| 119 | |
| 120 | qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL); |
| 121 | qxl_draw_opaque_fb(&qxl_fb_image, stride); |
| 122 | qfbdev->dirty.x1 = 0; |
| 123 | qfbdev->dirty.x2 = 0; |
| 124 | qfbdev->dirty.y1 = 0; |
| 125 | qfbdev->dirty.y2 = 0; |
| 126 | } |
| 127 | |
| 128 | static void qxl_deferred_io(struct fb_info *info, |
| 129 | struct list_head *pagelist) |
| 130 | { |
| 131 | struct qxl_fbdev *qfbdev = info->par; |
| 132 | unsigned long start, end, min, max; |
| 133 | struct page *page; |
| 134 | int y1, y2; |
| 135 | |
| 136 | min = ULONG_MAX; |
| 137 | max = 0; |
| 138 | list_for_each_entry(page, pagelist, lru) { |
| 139 | start = page->index << PAGE_SHIFT; |
| 140 | end = start + PAGE_SIZE - 1; |
| 141 | min = min(min, start); |
| 142 | max = max(max, end); |
| 143 | } |
| 144 | |
| 145 | if (min < max) { |
| 146 | y1 = min / info->fix.line_length; |
| 147 | y2 = (max / info->fix.line_length) + 1; |
| 148 | |
| 149 | /* TODO: add spin lock? */ |
| 150 | /* spin_lock_irqsave(&qfbdev->dirty.lock, flags); */ |
| 151 | qfbdev->dirty.x1 = 0; |
| 152 | qfbdev->dirty.y1 = y1; |
| 153 | qfbdev->dirty.x2 = info->var.xres; |
| 154 | qfbdev->dirty.y2 = y2; |
| 155 | /* spin_unlock_irqrestore(&qfbdev->dirty.lock, flags); */ |
| 156 | } |
| 157 | |
| 158 | qxl_fb_dirty_flush(info); |
| 159 | }; |
| 160 | |
| 161 | |
Dave Airlie | 6d01f1f | 2013-04-16 13:24:25 +1000 | [diff] [blame] | 162 | static struct fb_deferred_io qxl_defio = { |
Dave Airlie | f64122c | 2013-02-25 14:47:55 +1000 | [diff] [blame] | 163 | .delay = QXL_DIRTY_DELAY, |
| 164 | .deferred_io = qxl_deferred_io, |
| 165 | }; |
| 166 | |
| 167 | static void qxl_fb_fillrect(struct fb_info *info, |
| 168 | const struct fb_fillrect *fb_rect) |
| 169 | { |
| 170 | struct qxl_fbdev *qfbdev = info->par; |
| 171 | struct qxl_device *qdev = qfbdev->qdev; |
| 172 | struct qxl_rect rect; |
| 173 | uint32_t color; |
| 174 | int x = fb_rect->dx; |
| 175 | int y = fb_rect->dy; |
| 176 | int width = fb_rect->width; |
| 177 | int height = fb_rect->height; |
| 178 | uint16_t rop; |
| 179 | struct qxl_draw_fill qxl_draw_fill_rec; |
| 180 | |
| 181 | if (info->fix.visual == FB_VISUAL_TRUECOLOR || |
| 182 | info->fix.visual == FB_VISUAL_DIRECTCOLOR) |
| 183 | color = ((u32 *) (info->pseudo_palette))[fb_rect->color]; |
| 184 | else |
| 185 | color = fb_rect->color; |
| 186 | rect.left = x; |
| 187 | rect.right = x + width; |
| 188 | rect.top = y; |
| 189 | rect.bottom = y + height; |
| 190 | switch (fb_rect->rop) { |
| 191 | case ROP_XOR: |
| 192 | rop = SPICE_ROPD_OP_XOR; |
| 193 | break; |
| 194 | case ROP_COPY: |
| 195 | rop = SPICE_ROPD_OP_PUT; |
| 196 | break; |
| 197 | default: |
| 198 | pr_err("qxl_fb_fillrect(): unknown rop, " |
| 199 | "defaulting to SPICE_ROPD_OP_PUT\n"); |
| 200 | rop = SPICE_ROPD_OP_PUT; |
| 201 | } |
| 202 | qxl_draw_fill_rec.qdev = qdev; |
| 203 | qxl_draw_fill_rec.rect = rect; |
| 204 | qxl_draw_fill_rec.color = color; |
| 205 | qxl_draw_fill_rec.rop = rop; |
| 206 | if (!drm_can_sleep()) { |
| 207 | qxl_io_log(qdev, |
| 208 | "%s: TODO use RCU, mysterious locks with spin_lock\n", |
| 209 | __func__); |
| 210 | return; |
| 211 | } |
| 212 | qxl_draw_fill(&qxl_draw_fill_rec); |
| 213 | } |
| 214 | |
| 215 | static void qxl_fb_copyarea(struct fb_info *info, |
| 216 | const struct fb_copyarea *region) |
| 217 | { |
| 218 | struct qxl_fbdev *qfbdev = info->par; |
| 219 | |
| 220 | qxl_draw_copyarea(qfbdev->qdev, |
| 221 | region->width, region->height, |
| 222 | region->sx, region->sy, |
| 223 | region->dx, region->dy); |
| 224 | } |
| 225 | |
| 226 | static void qxl_fb_imageblit_safe(struct qxl_fb_image *qxl_fb_image) |
| 227 | { |
| 228 | qxl_draw_opaque_fb(qxl_fb_image, 0); |
| 229 | } |
| 230 | |
| 231 | static void qxl_fb_imageblit(struct fb_info *info, |
| 232 | const struct fb_image *image) |
| 233 | { |
| 234 | struct qxl_fbdev *qfbdev = info->par; |
| 235 | struct qxl_device *qdev = qfbdev->qdev; |
| 236 | struct qxl_fb_image qxl_fb_image; |
| 237 | |
| 238 | if (!drm_can_sleep()) { |
| 239 | /* we cannot do any ttm_bo allocation since that will fail on |
| 240 | * ioremap_wc..__get_vm_area_node, so queue the work item |
| 241 | * instead This can happen from printk inside an interrupt |
| 242 | * context, i.e.: smp_apic_timer_interrupt..check_cpu_stall */ |
| 243 | qxl_io_log(qdev, |
| 244 | "%s: TODO use RCU, mysterious locks with spin_lock\n", |
| 245 | __func__); |
| 246 | return; |
| 247 | } |
| 248 | |
| 249 | /* ensure proper order of rendering operations - TODO: must do this |
| 250 | * for everything. */ |
| 251 | qxl_fb_image_init(&qxl_fb_image, qfbdev->qdev, info, image); |
| 252 | qxl_fb_imageblit_safe(&qxl_fb_image); |
| 253 | } |
| 254 | |
| 255 | int qxl_fb_init(struct qxl_device *qdev) |
| 256 | { |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | static struct fb_ops qxlfb_ops = { |
| 261 | .owner = THIS_MODULE, |
| 262 | .fb_check_var = drm_fb_helper_check_var, |
| 263 | .fb_set_par = drm_fb_helper_set_par, /* TODO: copy vmwgfx */ |
| 264 | .fb_fillrect = qxl_fb_fillrect, |
| 265 | .fb_copyarea = qxl_fb_copyarea, |
| 266 | .fb_imageblit = qxl_fb_imageblit, |
| 267 | .fb_pan_display = drm_fb_helper_pan_display, |
| 268 | .fb_blank = drm_fb_helper_blank, |
| 269 | .fb_setcmap = drm_fb_helper_setcmap, |
| 270 | .fb_debug_enter = drm_fb_helper_debug_enter, |
| 271 | .fb_debug_leave = drm_fb_helper_debug_leave, |
| 272 | }; |
| 273 | |
| 274 | static void qxlfb_destroy_pinned_object(struct drm_gem_object *gobj) |
| 275 | { |
| 276 | struct qxl_bo *qbo = gem_to_qxl_bo(gobj); |
| 277 | int ret; |
| 278 | |
| 279 | ret = qxl_bo_reserve(qbo, false); |
| 280 | if (likely(ret == 0)) { |
| 281 | qxl_bo_kunmap(qbo); |
| 282 | qxl_bo_unpin(qbo); |
| 283 | qxl_bo_unreserve(qbo); |
| 284 | } |
| 285 | drm_gem_object_unreference_unlocked(gobj); |
| 286 | } |
| 287 | |
| 288 | int qxl_get_handle_for_primary_fb(struct qxl_device *qdev, |
| 289 | struct drm_file *file_priv, |
| 290 | uint32_t *handle) |
| 291 | { |
| 292 | int r; |
| 293 | struct drm_gem_object *gobj = qdev->fbdev_qfb->obj; |
| 294 | |
| 295 | BUG_ON(!gobj); |
| 296 | /* drm_get_handle_create adds a reference - good */ |
| 297 | r = drm_gem_handle_create(file_priv, gobj, handle); |
| 298 | if (r) |
| 299 | return r; |
| 300 | return 0; |
| 301 | } |
| 302 | |
| 303 | static int qxlfb_create_pinned_object(struct qxl_fbdev *qfbdev, |
| 304 | struct drm_mode_fb_cmd2 *mode_cmd, |
| 305 | struct drm_gem_object **gobj_p) |
| 306 | { |
| 307 | struct qxl_device *qdev = qfbdev->qdev; |
| 308 | struct drm_gem_object *gobj = NULL; |
| 309 | struct qxl_bo *qbo = NULL; |
| 310 | int ret; |
| 311 | int aligned_size, size; |
| 312 | int height = mode_cmd->height; |
| 313 | int bpp; |
| 314 | int depth; |
| 315 | |
| 316 | drm_fb_get_bpp_depth(mode_cmd->pixel_format, &bpp, &depth); |
| 317 | |
| 318 | size = mode_cmd->pitches[0] * height; |
| 319 | aligned_size = ALIGN(size, PAGE_SIZE); |
| 320 | /* TODO: unallocate and reallocate surface0 for real. Hack to just |
| 321 | * have a large enough surface0 for 1024x768 Xorg 32bpp mode */ |
| 322 | ret = qxl_gem_object_create(qdev, aligned_size, 0, |
| 323 | QXL_GEM_DOMAIN_SURFACE, |
| 324 | false, /* is discardable */ |
| 325 | false, /* is kernel (false means device) */ |
| 326 | NULL, |
| 327 | &gobj); |
| 328 | if (ret) { |
| 329 | pr_err("failed to allocate framebuffer (%d)\n", |
| 330 | aligned_size); |
| 331 | return -ENOMEM; |
| 332 | } |
| 333 | qbo = gem_to_qxl_bo(gobj); |
| 334 | |
| 335 | qbo->surf.width = mode_cmd->width; |
| 336 | qbo->surf.height = mode_cmd->height; |
| 337 | qbo->surf.stride = mode_cmd->pitches[0]; |
| 338 | qbo->surf.format = SPICE_SURFACE_FMT_32_xRGB; |
| 339 | ret = qxl_bo_reserve(qbo, false); |
| 340 | if (unlikely(ret != 0)) |
| 341 | goto out_unref; |
| 342 | ret = qxl_bo_pin(qbo, QXL_GEM_DOMAIN_SURFACE, NULL); |
| 343 | if (ret) { |
| 344 | qxl_bo_unreserve(qbo); |
| 345 | goto out_unref; |
| 346 | } |
| 347 | ret = qxl_bo_kmap(qbo, NULL); |
| 348 | qxl_bo_unreserve(qbo); /* unreserve, will be mmaped */ |
| 349 | if (ret) |
| 350 | goto out_unref; |
| 351 | |
| 352 | *gobj_p = gobj; |
| 353 | return 0; |
| 354 | out_unref: |
| 355 | qxlfb_destroy_pinned_object(gobj); |
| 356 | *gobj_p = NULL; |
| 357 | return ret; |
| 358 | } |
| 359 | |
| 360 | static int qxlfb_create(struct qxl_fbdev *qfbdev, |
| 361 | struct drm_fb_helper_surface_size *sizes) |
| 362 | { |
| 363 | struct qxl_device *qdev = qfbdev->qdev; |
| 364 | struct fb_info *info; |
| 365 | struct drm_framebuffer *fb = NULL; |
| 366 | struct drm_mode_fb_cmd2 mode_cmd; |
| 367 | struct drm_gem_object *gobj = NULL; |
| 368 | struct qxl_bo *qbo = NULL; |
| 369 | struct device *device = &qdev->pdev->dev; |
| 370 | int ret; |
| 371 | int size; |
| 372 | int bpp = sizes->surface_bpp; |
| 373 | int depth = sizes->surface_depth; |
| 374 | void *shadow; |
| 375 | |
| 376 | mode_cmd.width = sizes->surface_width; |
| 377 | mode_cmd.height = sizes->surface_height; |
| 378 | |
| 379 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 1) / 8), 64); |
| 380 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
| 381 | |
| 382 | ret = qxlfb_create_pinned_object(qfbdev, &mode_cmd, &gobj); |
| 383 | qbo = gem_to_qxl_bo(gobj); |
| 384 | QXL_INFO(qdev, "%s: %dx%d %d\n", __func__, mode_cmd.width, |
| 385 | mode_cmd.height, mode_cmd.pitches[0]); |
| 386 | |
| 387 | shadow = vmalloc(mode_cmd.pitches[0] * mode_cmd.height); |
| 388 | /* TODO: what's the usual response to memory allocation errors? */ |
| 389 | BUG_ON(!shadow); |
| 390 | QXL_INFO(qdev, |
| 391 | "surface0 at gpu offset %lld, mmap_offset %lld (virt %p, shadow %p)\n", |
| 392 | qxl_bo_gpu_offset(qbo), |
| 393 | qxl_bo_mmap_offset(qbo), |
| 394 | qbo->kptr, |
| 395 | shadow); |
| 396 | size = mode_cmd.pitches[0] * mode_cmd.height; |
| 397 | |
| 398 | info = framebuffer_alloc(0, device); |
| 399 | if (info == NULL) { |
| 400 | ret = -ENOMEM; |
| 401 | goto out_unref; |
| 402 | } |
| 403 | |
| 404 | info->par = qfbdev; |
| 405 | |
| 406 | qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj); |
| 407 | |
| 408 | fb = &qfbdev->qfb.base; |
| 409 | |
| 410 | /* setup helper with fb data */ |
| 411 | qfbdev->helper.fb = fb; |
| 412 | qfbdev->helper.fbdev = info; |
| 413 | qfbdev->shadow = shadow; |
| 414 | strcpy(info->fix.id, "qxldrmfb"); |
| 415 | |
| 416 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
| 417 | |
| 418 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT; |
| 419 | info->fbops = &qxlfb_ops; |
| 420 | |
| 421 | /* |
| 422 | * TODO: using gobj->size in various places in this function. Not sure |
| 423 | * what the difference between the different sizes is. |
| 424 | */ |
| 425 | info->fix.smem_start = qdev->vram_base; /* TODO - correct? */ |
| 426 | info->fix.smem_len = gobj->size; |
| 427 | info->screen_base = qfbdev->shadow; |
| 428 | info->screen_size = gobj->size; |
| 429 | |
| 430 | drm_fb_helper_fill_var(info, &qfbdev->helper, sizes->fb_width, |
| 431 | sizes->fb_height); |
| 432 | |
| 433 | /* setup aperture base/size for vesafb takeover */ |
| 434 | info->apertures = alloc_apertures(1); |
| 435 | if (!info->apertures) { |
| 436 | ret = -ENOMEM; |
| 437 | goto out_unref; |
| 438 | } |
| 439 | info->apertures->ranges[0].base = qdev->ddev->mode_config.fb_base; |
| 440 | info->apertures->ranges[0].size = qdev->vram_size; |
| 441 | |
| 442 | info->fix.mmio_start = 0; |
| 443 | info->fix.mmio_len = 0; |
| 444 | |
| 445 | if (info->screen_base == NULL) { |
| 446 | ret = -ENOSPC; |
| 447 | goto out_unref; |
| 448 | } |
| 449 | |
| 450 | ret = fb_alloc_cmap(&info->cmap, 256, 0); |
| 451 | if (ret) { |
| 452 | ret = -ENOMEM; |
| 453 | goto out_unref; |
| 454 | } |
| 455 | |
| 456 | info->fbdefio = &qxl_defio; |
| 457 | fb_deferred_io_init(info); |
| 458 | |
| 459 | qdev->fbdev_info = info; |
| 460 | qdev->fbdev_qfb = &qfbdev->qfb; |
| 461 | DRM_INFO("fb mappable at 0x%lX, size %lu\n", info->fix.smem_start, (unsigned long)info->screen_size); |
| 462 | DRM_INFO("fb: depth %d, pitch %d, width %d, height %d\n", fb->depth, fb->pitches[0], fb->width, fb->height); |
| 463 | return 0; |
| 464 | |
| 465 | out_unref: |
| 466 | if (qbo) { |
| 467 | ret = qxl_bo_reserve(qbo, false); |
| 468 | if (likely(ret == 0)) { |
| 469 | qxl_bo_kunmap(qbo); |
| 470 | qxl_bo_unpin(qbo); |
| 471 | qxl_bo_unreserve(qbo); |
| 472 | } |
| 473 | } |
| 474 | if (fb && ret) { |
| 475 | drm_gem_object_unreference(gobj); |
| 476 | drm_framebuffer_cleanup(fb); |
| 477 | kfree(fb); |
| 478 | } |
| 479 | drm_gem_object_unreference(gobj); |
| 480 | return ret; |
| 481 | } |
| 482 | |
| 483 | static int qxl_fb_find_or_create_single( |
| 484 | struct drm_fb_helper *helper, |
| 485 | struct drm_fb_helper_surface_size *sizes) |
| 486 | { |
| 487 | struct qxl_fbdev *qfbdev = (struct qxl_fbdev *)helper; |
| 488 | int new_fb = 0; |
| 489 | int ret; |
| 490 | |
| 491 | if (!helper->fb) { |
| 492 | ret = qxlfb_create(qfbdev, sizes); |
| 493 | if (ret) |
| 494 | return ret; |
| 495 | new_fb = 1; |
| 496 | } |
| 497 | return new_fb; |
| 498 | } |
| 499 | |
| 500 | static int qxl_fbdev_destroy(struct drm_device *dev, struct qxl_fbdev *qfbdev) |
| 501 | { |
| 502 | struct fb_info *info; |
| 503 | struct qxl_framebuffer *qfb = &qfbdev->qfb; |
| 504 | |
| 505 | if (qfbdev->helper.fbdev) { |
| 506 | info = qfbdev->helper.fbdev; |
| 507 | |
| 508 | unregister_framebuffer(info); |
| 509 | framebuffer_release(info); |
| 510 | } |
| 511 | if (qfb->obj) { |
| 512 | qxlfb_destroy_pinned_object(qfb->obj); |
| 513 | qfb->obj = NULL; |
| 514 | } |
| 515 | drm_fb_helper_fini(&qfbdev->helper); |
| 516 | vfree(qfbdev->shadow); |
| 517 | drm_framebuffer_cleanup(&qfb->base); |
| 518 | |
| 519 | return 0; |
| 520 | } |
| 521 | |
| 522 | static struct drm_fb_helper_funcs qxl_fb_helper_funcs = { |
| 523 | /* TODO |
| 524 | .gamma_set = qxl_crtc_fb_gamma_set, |
| 525 | .gamma_get = qxl_crtc_fb_gamma_get, |
| 526 | */ |
| 527 | .fb_probe = qxl_fb_find_or_create_single, |
| 528 | }; |
| 529 | |
| 530 | int qxl_fbdev_init(struct qxl_device *qdev) |
| 531 | { |
| 532 | struct qxl_fbdev *qfbdev; |
| 533 | int bpp_sel = 32; /* TODO: parameter from somewhere? */ |
| 534 | int ret; |
| 535 | |
| 536 | qfbdev = kzalloc(sizeof(struct qxl_fbdev), GFP_KERNEL); |
| 537 | if (!qfbdev) |
| 538 | return -ENOMEM; |
| 539 | |
| 540 | qfbdev->qdev = qdev; |
| 541 | qdev->mode_info.qfbdev = qfbdev; |
| 542 | qfbdev->helper.funcs = &qxl_fb_helper_funcs; |
| 543 | |
| 544 | ret = drm_fb_helper_init(qdev->ddev, &qfbdev->helper, |
| 545 | 1 /* num_crtc - QXL supports just 1 */, |
| 546 | QXLFB_CONN_LIMIT); |
| 547 | if (ret) { |
| 548 | kfree(qfbdev); |
| 549 | return ret; |
| 550 | } |
| 551 | |
| 552 | drm_fb_helper_single_add_all_connectors(&qfbdev->helper); |
| 553 | drm_fb_helper_initial_config(&qfbdev->helper, bpp_sel); |
| 554 | return 0; |
| 555 | } |
| 556 | |
| 557 | void qxl_fbdev_fini(struct qxl_device *qdev) |
| 558 | { |
| 559 | if (!qdev->mode_info.qfbdev) |
| 560 | return; |
| 561 | |
| 562 | qxl_fbdev_destroy(qdev->ddev, qdev->mode_info.qfbdev); |
| 563 | kfree(qdev->mode_info.qfbdev); |
| 564 | qdev->mode_info.qfbdev = NULL; |
| 565 | } |
| 566 | |
| 567 | |