Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
| 3 | * Copyright © 2007 David Airlie |
| 4 | * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA |
| 5 | * All Rights Reserved. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 8 | * copy of this software and associated documentation files (the |
| 9 | * "Software"), to deal in the Software without restriction, including |
| 10 | * without limitation the rights to use, copy, modify, merge, publish, |
| 11 | * distribute, sub license, and/or sell copies of the Software, and to |
| 12 | * permit persons to whom the Software is furnished to do so, subject to |
| 13 | * the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice (including the |
| 16 | * next paragraph) shall be included in all copies or substantial portions |
| 17 | * of the Software. |
| 18 | * |
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 22 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 23 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 24 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 25 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 26 | * |
| 27 | **************************************************************************/ |
| 28 | |
Paul Gortmaker | 2d1a8a4 | 2011-08-30 18:16:33 -0400 | [diff] [blame] | 29 | #include <linux/export.h> |
| 30 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 31 | #include <drm/drmP.h> |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 32 | #include "vmwgfx_drv.h" |
| 33 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 34 | #include <drm/ttm/ttm_placement.h> |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 35 | |
| 36 | #define VMW_DIRTY_DELAY (HZ / 30) |
| 37 | |
| 38 | struct vmw_fb_par { |
| 39 | struct vmw_private *vmw_priv; |
| 40 | |
| 41 | void *vmalloc; |
| 42 | |
| 43 | struct vmw_dma_buffer *vmw_bo; |
| 44 | struct ttm_bo_kmap_obj map; |
| 45 | |
| 46 | u32 pseudo_palette[17]; |
| 47 | |
| 48 | unsigned depth; |
| 49 | unsigned bpp; |
| 50 | |
| 51 | unsigned max_width; |
| 52 | unsigned max_height; |
| 53 | |
| 54 | void *bo_ptr; |
| 55 | unsigned bo_size; |
| 56 | bool bo_iowrite; |
| 57 | |
| 58 | struct { |
| 59 | spinlock_t lock; |
| 60 | bool active; |
| 61 | unsigned x1; |
| 62 | unsigned y1; |
| 63 | unsigned x2; |
| 64 | unsigned y2; |
| 65 | } dirty; |
| 66 | }; |
| 67 | |
| 68 | static int vmw_fb_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 69 | unsigned blue, unsigned transp, |
| 70 | struct fb_info *info) |
| 71 | { |
| 72 | struct vmw_fb_par *par = info->par; |
| 73 | u32 *pal = par->pseudo_palette; |
| 74 | |
| 75 | if (regno > 15) { |
| 76 | DRM_ERROR("Bad regno %u.\n", regno); |
| 77 | return 1; |
| 78 | } |
| 79 | |
| 80 | switch (par->depth) { |
| 81 | case 24: |
| 82 | case 32: |
| 83 | pal[regno] = ((red & 0xff00) << 8) | |
| 84 | (green & 0xff00) | |
| 85 | ((blue & 0xff00) >> 8); |
| 86 | break; |
| 87 | default: |
| 88 | DRM_ERROR("Bad depth %u, bpp %u.\n", par->depth, par->bpp); |
| 89 | return 1; |
| 90 | } |
| 91 | |
| 92 | return 0; |
| 93 | } |
| 94 | |
| 95 | static int vmw_fb_check_var(struct fb_var_screeninfo *var, |
| 96 | struct fb_info *info) |
| 97 | { |
| 98 | int depth = var->bits_per_pixel; |
| 99 | struct vmw_fb_par *par = info->par; |
| 100 | struct vmw_private *vmw_priv = par->vmw_priv; |
| 101 | |
| 102 | switch (var->bits_per_pixel) { |
| 103 | case 32: |
| 104 | depth = (var->transp.length > 0) ? 32 : 24; |
| 105 | break; |
| 106 | default: |
| 107 | DRM_ERROR("Bad bpp %u.\n", var->bits_per_pixel); |
| 108 | return -EINVAL; |
| 109 | } |
| 110 | |
| 111 | switch (depth) { |
| 112 | case 24: |
| 113 | var->red.offset = 16; |
| 114 | var->green.offset = 8; |
| 115 | var->blue.offset = 0; |
| 116 | var->red.length = 8; |
| 117 | var->green.length = 8; |
| 118 | var->blue.length = 8; |
| 119 | var->transp.length = 0; |
| 120 | var->transp.offset = 0; |
| 121 | break; |
| 122 | case 32: |
| 123 | var->red.offset = 16; |
| 124 | var->green.offset = 8; |
| 125 | var->blue.offset = 0; |
| 126 | var->red.length = 8; |
| 127 | var->green.length = 8; |
| 128 | var->blue.length = 8; |
| 129 | var->transp.length = 8; |
| 130 | var->transp.offset = 24; |
| 131 | break; |
| 132 | default: |
| 133 | DRM_ERROR("Bad depth %u.\n", depth); |
| 134 | return -EINVAL; |
| 135 | } |
| 136 | |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 137 | if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) && |
| 138 | (var->xoffset != 0 || var->yoffset != 0)) { |
| 139 | DRM_ERROR("Can not handle panning without display topology\n"); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 140 | return -EINVAL; |
| 141 | } |
| 142 | |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 143 | if ((var->xoffset + var->xres) > par->max_width || |
| 144 | (var->yoffset + var->yres) > par->max_height) { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 145 | DRM_ERROR("Requested geom can not fit in framebuffer\n"); |
| 146 | return -EINVAL; |
| 147 | } |
| 148 | |
Thomas Hellstrom | e133e73 | 2010-10-05 12:43:04 +0200 | [diff] [blame] | 149 | if (!vmw_kms_validate_mode_vram(vmw_priv, |
| 150 | info->fix.line_length, |
| 151 | var->yoffset + var->yres)) { |
| 152 | DRM_ERROR("Requested geom can not fit in framebuffer\n"); |
| 153 | return -EINVAL; |
| 154 | } |
| 155 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 156 | return 0; |
| 157 | } |
| 158 | |
| 159 | static int vmw_fb_set_par(struct fb_info *info) |
| 160 | { |
| 161 | struct vmw_fb_par *par = info->par; |
| 162 | struct vmw_private *vmw_priv = par->vmw_priv; |
Michel Dänzer | 0bef23f | 2011-08-31 07:42:50 +0000 | [diff] [blame] | 163 | int ret; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 164 | |
Michel Dänzer | 0bef23f | 2011-08-31 07:42:50 +0000 | [diff] [blame] | 165 | ret = vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres, |
| 166 | info->fix.line_length, |
| 167 | par->bpp, par->depth); |
| 168 | if (ret) |
| 169 | return ret; |
| 170 | |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 171 | if (vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 172 | /* TODO check if pitch and offset changes */ |
Jakob Bornecrantz | 991b7b4 | 2010-06-01 11:38:16 +0200 | [diff] [blame] | 173 | vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 174 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0); |
| 175 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true); |
| 176 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, info->var.xoffset); |
| 177 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, info->var.yoffset); |
| 178 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, info->var.xres); |
| 179 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, info->var.yres); |
| 180 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 181 | } |
| 182 | |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 183 | /* This is really helpful since if this fails the user |
| 184 | * can probably not see anything on the screen. |
| 185 | */ |
| 186 | WARN_ON(vmw_read(vmw_priv, SVGA_REG_FB_OFFSET) != 0); |
| 187 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | static int vmw_fb_pan_display(struct fb_var_screeninfo *var, |
| 192 | struct fb_info *info) |
| 193 | { |
| 194 | return 0; |
| 195 | } |
| 196 | |
| 197 | static int vmw_fb_blank(int blank, struct fb_info *info) |
| 198 | { |
| 199 | return 0; |
| 200 | } |
| 201 | |
| 202 | /* |
| 203 | * Dirty code |
| 204 | */ |
| 205 | |
| 206 | static void vmw_fb_dirty_flush(struct vmw_fb_par *par) |
| 207 | { |
| 208 | struct vmw_private *vmw_priv = par->vmw_priv; |
| 209 | struct fb_info *info = vmw_priv->fb_info; |
| 210 | int stride = (info->fix.line_length / 4); |
| 211 | int *src = (int *)info->screen_base; |
| 212 | __le32 __iomem *vram_mem = par->bo_ptr; |
| 213 | unsigned long flags; |
| 214 | unsigned x, y, w, h; |
| 215 | int i, k; |
| 216 | struct { |
| 217 | uint32_t header; |
| 218 | SVGAFifoCmdUpdate body; |
| 219 | } *cmd; |
| 220 | |
Thomas Hellstrom | 09e2601 | 2010-10-05 12:43:05 +0200 | [diff] [blame] | 221 | if (vmw_priv->suspended) |
| 222 | return; |
| 223 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 224 | spin_lock_irqsave(&par->dirty.lock, flags); |
| 225 | if (!par->dirty.active) { |
| 226 | spin_unlock_irqrestore(&par->dirty.lock, flags); |
| 227 | return; |
| 228 | } |
| 229 | x = par->dirty.x1; |
| 230 | y = par->dirty.y1; |
| 231 | w = min(par->dirty.x2, info->var.xres) - x; |
| 232 | h = min(par->dirty.y2, info->var.yres) - y; |
| 233 | par->dirty.x1 = par->dirty.x2 = 0; |
| 234 | par->dirty.y1 = par->dirty.y2 = 0; |
| 235 | spin_unlock_irqrestore(&par->dirty.lock, flags); |
| 236 | |
| 237 | for (i = y * stride; i < info->fix.smem_len / 4; i += stride) { |
| 238 | for (k = i+x; k < i+x+w && k < info->fix.smem_len / 4; k++) |
| 239 | iowrite32(src[k], vram_mem + k); |
| 240 | } |
| 241 | |
| 242 | #if 0 |
| 243 | DRM_INFO("%s, (%u, %u) (%ux%u)\n", __func__, x, y, w, h); |
| 244 | #endif |
| 245 | |
| 246 | cmd = vmw_fifo_reserve(vmw_priv, sizeof(*cmd)); |
| 247 | if (unlikely(cmd == NULL)) { |
| 248 | DRM_ERROR("Fifo reserve failed.\n"); |
| 249 | return; |
| 250 | } |
| 251 | |
| 252 | cmd->header = cpu_to_le32(SVGA_CMD_UPDATE); |
| 253 | cmd->body.x = cpu_to_le32(x); |
| 254 | cmd->body.y = cpu_to_le32(y); |
| 255 | cmd->body.width = cpu_to_le32(w); |
| 256 | cmd->body.height = cpu_to_le32(h); |
| 257 | vmw_fifo_commit(vmw_priv, sizeof(*cmd)); |
| 258 | } |
| 259 | |
| 260 | static void vmw_fb_dirty_mark(struct vmw_fb_par *par, |
| 261 | unsigned x1, unsigned y1, |
| 262 | unsigned width, unsigned height) |
| 263 | { |
| 264 | struct fb_info *info = par->vmw_priv->fb_info; |
| 265 | unsigned long flags; |
| 266 | unsigned x2 = x1 + width; |
| 267 | unsigned y2 = y1 + height; |
| 268 | |
| 269 | spin_lock_irqsave(&par->dirty.lock, flags); |
| 270 | if (par->dirty.x1 == par->dirty.x2) { |
| 271 | par->dirty.x1 = x1; |
| 272 | par->dirty.y1 = y1; |
| 273 | par->dirty.x2 = x2; |
| 274 | par->dirty.y2 = y2; |
| 275 | /* if we are active start the dirty work |
| 276 | * we share the work with the defio system */ |
| 277 | if (par->dirty.active) |
| 278 | schedule_delayed_work(&info->deferred_work, VMW_DIRTY_DELAY); |
| 279 | } else { |
| 280 | if (x1 < par->dirty.x1) |
| 281 | par->dirty.x1 = x1; |
| 282 | if (y1 < par->dirty.y1) |
| 283 | par->dirty.y1 = y1; |
| 284 | if (x2 > par->dirty.x2) |
| 285 | par->dirty.x2 = x2; |
| 286 | if (y2 > par->dirty.y2) |
| 287 | par->dirty.y2 = y2; |
| 288 | } |
| 289 | spin_unlock_irqrestore(&par->dirty.lock, flags); |
| 290 | } |
| 291 | |
| 292 | static void vmw_deferred_io(struct fb_info *info, |
| 293 | struct list_head *pagelist) |
| 294 | { |
| 295 | struct vmw_fb_par *par = info->par; |
| 296 | unsigned long start, end, min, max; |
| 297 | unsigned long flags; |
| 298 | struct page *page; |
| 299 | int y1, y2; |
| 300 | |
| 301 | min = ULONG_MAX; |
| 302 | max = 0; |
| 303 | list_for_each_entry(page, pagelist, lru) { |
| 304 | start = page->index << PAGE_SHIFT; |
| 305 | end = start + PAGE_SIZE - 1; |
| 306 | min = min(min, start); |
| 307 | max = max(max, end); |
| 308 | } |
| 309 | |
| 310 | if (min < max) { |
| 311 | y1 = min / info->fix.line_length; |
| 312 | y2 = (max / info->fix.line_length) + 1; |
| 313 | |
| 314 | spin_lock_irqsave(&par->dirty.lock, flags); |
| 315 | par->dirty.x1 = 0; |
| 316 | par->dirty.y1 = y1; |
| 317 | par->dirty.x2 = info->var.xres; |
| 318 | par->dirty.y2 = y2; |
| 319 | spin_unlock_irqrestore(&par->dirty.lock, flags); |
| 320 | } |
| 321 | |
| 322 | vmw_fb_dirty_flush(par); |
| 323 | }; |
| 324 | |
| 325 | struct fb_deferred_io vmw_defio = { |
| 326 | .delay = VMW_DIRTY_DELAY, |
| 327 | .deferred_io = vmw_deferred_io, |
| 328 | }; |
| 329 | |
| 330 | /* |
| 331 | * Draw code |
| 332 | */ |
| 333 | |
| 334 | static void vmw_fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| 335 | { |
| 336 | cfb_fillrect(info, rect); |
| 337 | vmw_fb_dirty_mark(info->par, rect->dx, rect->dy, |
| 338 | rect->width, rect->height); |
| 339 | } |
| 340 | |
| 341 | static void vmw_fb_copyarea(struct fb_info *info, const struct fb_copyarea *region) |
| 342 | { |
| 343 | cfb_copyarea(info, region); |
| 344 | vmw_fb_dirty_mark(info->par, region->dx, region->dy, |
| 345 | region->width, region->height); |
| 346 | } |
| 347 | |
| 348 | static void vmw_fb_imageblit(struct fb_info *info, const struct fb_image *image) |
| 349 | { |
| 350 | cfb_imageblit(info, image); |
| 351 | vmw_fb_dirty_mark(info->par, image->dx, image->dy, |
| 352 | image->width, image->height); |
| 353 | } |
| 354 | |
| 355 | /* |
| 356 | * Bring up code |
| 357 | */ |
| 358 | |
| 359 | static struct fb_ops vmw_fb_ops = { |
| 360 | .owner = THIS_MODULE, |
| 361 | .fb_check_var = vmw_fb_check_var, |
| 362 | .fb_set_par = vmw_fb_set_par, |
| 363 | .fb_setcolreg = vmw_fb_setcolreg, |
| 364 | .fb_fillrect = vmw_fb_fillrect, |
| 365 | .fb_copyarea = vmw_fb_copyarea, |
| 366 | .fb_imageblit = vmw_fb_imageblit, |
| 367 | .fb_pan_display = vmw_fb_pan_display, |
| 368 | .fb_blank = vmw_fb_blank, |
| 369 | }; |
| 370 | |
| 371 | static int vmw_fb_create_bo(struct vmw_private *vmw_priv, |
| 372 | size_t size, struct vmw_dma_buffer **out) |
| 373 | { |
| 374 | struct vmw_dma_buffer *vmw_bo; |
| 375 | struct ttm_placement ne_placement = vmw_vram_ne_placement; |
| 376 | int ret; |
| 377 | |
| 378 | ne_placement.lpfn = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; |
| 379 | |
| 380 | /* interuptable? */ |
| 381 | ret = ttm_write_lock(&vmw_priv->fbdev_master.lock, false); |
| 382 | if (unlikely(ret != 0)) |
| 383 | return ret; |
| 384 | |
| 385 | vmw_bo = kmalloc(sizeof(*vmw_bo), GFP_KERNEL); |
| 386 | if (!vmw_bo) |
| 387 | goto err_unlock; |
| 388 | |
| 389 | ret = vmw_dmabuf_init(vmw_priv, vmw_bo, size, |
| 390 | &ne_placement, |
| 391 | false, |
| 392 | &vmw_dmabuf_bo_free); |
| 393 | if (unlikely(ret != 0)) |
| 394 | goto err_unlock; /* init frees the buffer on failure */ |
| 395 | |
| 396 | *out = vmw_bo; |
| 397 | |
| 398 | ttm_write_unlock(&vmw_priv->fbdev_master.lock); |
| 399 | |
| 400 | return 0; |
| 401 | |
| 402 | err_unlock: |
| 403 | ttm_write_unlock(&vmw_priv->fbdev_master.lock); |
| 404 | return ret; |
| 405 | } |
| 406 | |
| 407 | int vmw_fb_init(struct vmw_private *vmw_priv) |
| 408 | { |
| 409 | struct device *device = &vmw_priv->dev->pdev->dev; |
| 410 | struct vmw_fb_par *par; |
| 411 | struct fb_info *info; |
| 412 | unsigned initial_width, initial_height; |
| 413 | unsigned fb_width, fb_height; |
Michel Dänzer | 6558429b | 2011-08-31 07:42:49 +0000 | [diff] [blame] | 414 | unsigned fb_bpp, fb_depth, fb_offset, fb_pitch, fb_size; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 415 | int ret; |
| 416 | |
Michel Dänzer | 6558429b | 2011-08-31 07:42:49 +0000 | [diff] [blame] | 417 | fb_bpp = 32; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 418 | fb_depth = 24; |
| 419 | |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 420 | /* XXX As shouldn't these be as well. */ |
| 421 | fb_width = min(vmw_priv->fb_max_width, (unsigned)2048); |
| 422 | fb_height = min(vmw_priv->fb_max_height, (unsigned)2048); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 423 | |
Jakob Bornecrantz | eb4f923 | 2012-02-09 16:56:46 +0100 | [diff] [blame] | 424 | initial_width = min(vmw_priv->initial_width, fb_width); |
| 425 | initial_height = min(vmw_priv->initial_height, fb_height); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 426 | |
Michel Dänzer | 6558429b | 2011-08-31 07:42:49 +0000 | [diff] [blame] | 427 | fb_pitch = fb_width * fb_bpp / 8; |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 428 | fb_size = fb_pitch * fb_height; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 429 | fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 430 | |
| 431 | info = framebuffer_alloc(sizeof(*par), device); |
| 432 | if (!info) |
| 433 | return -ENOMEM; |
| 434 | |
| 435 | /* |
| 436 | * Par |
| 437 | */ |
| 438 | vmw_priv->fb_info = info; |
| 439 | par = info->par; |
| 440 | par->vmw_priv = vmw_priv; |
| 441 | par->depth = fb_depth; |
Michel Dänzer | 6558429b | 2011-08-31 07:42:49 +0000 | [diff] [blame] | 442 | par->bpp = fb_bpp; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 443 | par->vmalloc = NULL; |
| 444 | par->max_width = fb_width; |
| 445 | par->max_height = fb_height; |
| 446 | |
| 447 | /* |
| 448 | * Create buffers and alloc memory |
| 449 | */ |
| 450 | par->vmalloc = vmalloc(fb_size); |
| 451 | if (unlikely(par->vmalloc == NULL)) { |
| 452 | ret = -ENOMEM; |
| 453 | goto err_free; |
| 454 | } |
| 455 | |
| 456 | ret = vmw_fb_create_bo(vmw_priv, fb_size, &par->vmw_bo); |
| 457 | if (unlikely(ret != 0)) |
| 458 | goto err_free; |
| 459 | |
| 460 | ret = ttm_bo_kmap(&par->vmw_bo->base, |
| 461 | 0, |
| 462 | par->vmw_bo->base.num_pages, |
| 463 | &par->map); |
| 464 | if (unlikely(ret != 0)) |
| 465 | goto err_unref; |
| 466 | par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &par->bo_iowrite); |
| 467 | par->bo_size = fb_size; |
| 468 | |
| 469 | /* |
| 470 | * Fixed and var |
| 471 | */ |
| 472 | strcpy(info->fix.id, "svgadrmfb"); |
| 473 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
| 474 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
| 475 | info->fix.type_aux = 0; |
| 476 | info->fix.xpanstep = 1; /* doing it in hw */ |
| 477 | info->fix.ypanstep = 1; /* doing it in hw */ |
| 478 | info->fix.ywrapstep = 0; |
| 479 | info->fix.accel = FB_ACCEL_NONE; |
| 480 | info->fix.line_length = fb_pitch; |
| 481 | |
| 482 | info->fix.smem_start = 0; |
| 483 | info->fix.smem_len = fb_size; |
| 484 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 485 | info->pseudo_palette = par->pseudo_palette; |
| 486 | info->screen_base = par->vmalloc; |
| 487 | info->screen_size = fb_size; |
| 488 | |
| 489 | info->flags = FBINFO_DEFAULT; |
| 490 | info->fbops = &vmw_fb_ops; |
| 491 | |
| 492 | /* 24 depth per default */ |
| 493 | info->var.red.offset = 16; |
| 494 | info->var.green.offset = 8; |
| 495 | info->var.blue.offset = 0; |
| 496 | info->var.red.length = 8; |
| 497 | info->var.green.length = 8; |
| 498 | info->var.blue.length = 8; |
| 499 | info->var.transp.offset = 0; |
| 500 | info->var.transp.length = 0; |
| 501 | |
| 502 | info->var.xres_virtual = fb_width; |
| 503 | info->var.yres_virtual = fb_height; |
| 504 | info->var.bits_per_pixel = par->bpp; |
| 505 | info->var.xoffset = 0; |
| 506 | info->var.yoffset = 0; |
| 507 | info->var.activate = FB_ACTIVATE_NOW; |
| 508 | info->var.height = -1; |
| 509 | info->var.width = -1; |
| 510 | |
| 511 | info->var.xres = initial_width; |
| 512 | info->var.yres = initial_height; |
| 513 | |
Sascha Hauer | fb2a99e | 2012-02-06 10:58:19 +0100 | [diff] [blame] | 514 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 515 | |
Marcin Slusarz | 1471ca9 | 2010-05-16 17:27:03 +0200 | [diff] [blame] | 516 | info->apertures = alloc_apertures(1); |
| 517 | if (!info->apertures) { |
| 518 | ret = -ENOMEM; |
| 519 | goto err_aper; |
| 520 | } |
| 521 | info->apertures->ranges[0].base = vmw_priv->vram_start; |
| 522 | info->apertures->ranges[0].size = vmw_priv->vram_size; |
Thomas Hellstrom | f2d12b8 | 2010-02-15 14:45:22 +0000 | [diff] [blame] | 523 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 524 | /* |
| 525 | * Dirty & Deferred IO |
| 526 | */ |
| 527 | par->dirty.x1 = par->dirty.x2 = 0; |
Chris Wilson | c39721c | 2010-07-24 17:15:11 +0100 | [diff] [blame] | 528 | par->dirty.y1 = par->dirty.y2 = 0; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 529 | par->dirty.active = true; |
| 530 | spin_lock_init(&par->dirty.lock); |
| 531 | info->fbdefio = &vmw_defio; |
| 532 | fb_deferred_io_init(info); |
| 533 | |
| 534 | ret = register_framebuffer(info); |
| 535 | if (unlikely(ret != 0)) |
| 536 | goto err_defio; |
| 537 | |
| 538 | return 0; |
| 539 | |
| 540 | err_defio: |
| 541 | fb_deferred_io_cleanup(info); |
Marcin Slusarz | 1471ca9 | 2010-05-16 17:27:03 +0200 | [diff] [blame] | 542 | err_aper: |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 543 | ttm_bo_kunmap(&par->map); |
| 544 | err_unref: |
| 545 | ttm_bo_unref((struct ttm_buffer_object **)&par->vmw_bo); |
| 546 | err_free: |
| 547 | vfree(par->vmalloc); |
| 548 | framebuffer_release(info); |
| 549 | vmw_priv->fb_info = NULL; |
| 550 | |
| 551 | return ret; |
| 552 | } |
| 553 | |
| 554 | int vmw_fb_close(struct vmw_private *vmw_priv) |
| 555 | { |
| 556 | struct fb_info *info; |
| 557 | struct vmw_fb_par *par; |
| 558 | struct ttm_buffer_object *bo; |
| 559 | |
| 560 | if (!vmw_priv->fb_info) |
| 561 | return 0; |
| 562 | |
| 563 | info = vmw_priv->fb_info; |
| 564 | par = info->par; |
| 565 | bo = &par->vmw_bo->base; |
| 566 | par->vmw_bo = NULL; |
| 567 | |
| 568 | /* ??? order */ |
| 569 | fb_deferred_io_cleanup(info); |
| 570 | unregister_framebuffer(info); |
| 571 | |
| 572 | ttm_bo_kunmap(&par->map); |
| 573 | ttm_bo_unref(&bo); |
| 574 | |
| 575 | vfree(par->vmalloc); |
| 576 | framebuffer_release(info); |
| 577 | |
| 578 | return 0; |
| 579 | } |
| 580 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 581 | int vmw_fb_off(struct vmw_private *vmw_priv) |
| 582 | { |
| 583 | struct fb_info *info; |
| 584 | struct vmw_fb_par *par; |
| 585 | unsigned long flags; |
| 586 | |
| 587 | if (!vmw_priv->fb_info) |
| 588 | return -EINVAL; |
| 589 | |
| 590 | info = vmw_priv->fb_info; |
| 591 | par = info->par; |
| 592 | |
| 593 | spin_lock_irqsave(&par->dirty.lock, flags); |
| 594 | par->dirty.active = false; |
| 595 | spin_unlock_irqrestore(&par->dirty.lock, flags); |
| 596 | |
Tejun Heo | 4382973 | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 597 | flush_delayed_work(&info->deferred_work); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 598 | |
| 599 | par->bo_ptr = NULL; |
| 600 | ttm_bo_kunmap(&par->map); |
| 601 | |
Thomas Hellstrom | b37a6b9 | 2011-10-04 20:13:28 +0200 | [diff] [blame] | 602 | vmw_dmabuf_unpin(vmw_priv, par->vmw_bo, false); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 603 | |
| 604 | return 0; |
| 605 | } |
| 606 | |
| 607 | int vmw_fb_on(struct vmw_private *vmw_priv) |
| 608 | { |
| 609 | struct fb_info *info; |
| 610 | struct vmw_fb_par *par; |
| 611 | unsigned long flags; |
| 612 | bool dummy; |
| 613 | int ret; |
| 614 | |
| 615 | if (!vmw_priv->fb_info) |
| 616 | return -EINVAL; |
| 617 | |
| 618 | info = vmw_priv->fb_info; |
| 619 | par = info->par; |
| 620 | |
| 621 | /* we are already active */ |
| 622 | if (par->bo_ptr != NULL) |
| 623 | return 0; |
| 624 | |
| 625 | /* Make sure that all overlays are stoped when we take over */ |
| 626 | vmw_overlay_stop_all(vmw_priv); |
| 627 | |
Jakob Bornecrantz | d991ef0 | 2011-10-04 20:13:21 +0200 | [diff] [blame] | 628 | ret = vmw_dmabuf_to_start_of_vram(vmw_priv, par->vmw_bo, true, false); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 629 | if (unlikely(ret != 0)) { |
| 630 | DRM_ERROR("could not move buffer to start of VRAM\n"); |
| 631 | goto err_no_buffer; |
| 632 | } |
| 633 | |
| 634 | ret = ttm_bo_kmap(&par->vmw_bo->base, |
| 635 | 0, |
| 636 | par->vmw_bo->base.num_pages, |
| 637 | &par->map); |
| 638 | BUG_ON(ret != 0); |
| 639 | par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &dummy); |
| 640 | |
| 641 | spin_lock_irqsave(&par->dirty.lock, flags); |
| 642 | par->dirty.active = true; |
| 643 | spin_unlock_irqrestore(&par->dirty.lock, flags); |
| 644 | |
| 645 | err_no_buffer: |
| 646 | vmw_fb_set_par(info); |
| 647 | |
| 648 | vmw_fb_dirty_mark(par, 0, 0, info->var.xres, info->var.yres); |
| 649 | |
| 650 | /* If there already was stuff dirty we wont |
| 651 | * schedule a new work, so lets do it now */ |
| 652 | schedule_delayed_work(&info->deferred_work, 0); |
| 653 | |
| 654 | return 0; |
| 655 | } |