1/* 2 * Copyright © 2007 David Airlie 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 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include <machine/_inttypes.h> 31 32#include <dev/drm2/drmP.h> 33#include <dev/drm2/drm_crtc.h> 34#include <dev/drm2/drm_crtc_helper.h> 35#include <dev/drm2/radeon/radeon_drm.h> 36#include "radeon.h" 37 38#include <dev/drm2/drm_fb_helper.h> 39 40/* object hierarchy - 41 this contains a helper + a radeon fb 42 the helper contains a pointer to radeon framebuffer baseclass. 43*/ 44struct radeon_fbdev { 45 struct drm_fb_helper helper; 46 struct radeon_framebuffer rfb; 47 struct list_head fbdev_list; 48 struct radeon_device *rdev; 49}; 50 51#if defined(__linux__) 52static struct fb_ops radeonfb_ops = { 53 .owner = THIS_MODULE, 54 .fb_check_var = drm_fb_helper_check_var, 55 .fb_set_par = drm_fb_helper_set_par, 56 .fb_fillrect = cfb_fillrect, 57 .fb_copyarea = cfb_copyarea, 58 .fb_imageblit = cfb_imageblit, 59 .fb_pan_display = drm_fb_helper_pan_display, 60 .fb_blank = drm_fb_helper_blank, 61 .fb_setcmap = drm_fb_helper_setcmap, 62 .fb_debug_enter = drm_fb_helper_debug_enter, 63 .fb_debug_leave = drm_fb_helper_debug_leave, 64}; 65#endif 66 67 68int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled) 69{ 70 int aligned = width; 71 int align_large = (ASIC_IS_AVIVO(rdev)) || tiled; 72 int pitch_mask = 0; 73 74 switch (bpp / 8) { 75 case 1: 76 pitch_mask = align_large ? 255 : 127; 77 break; 78 case 2: 79 pitch_mask = align_large ? 127 : 31; 80 break; 81 case 3: 82 case 4: 83 pitch_mask = align_large ? 63 : 15; 84 break; 85 } 86 87 aligned += pitch_mask; 88 aligned &= ~pitch_mask; 89 return aligned; 90} 91 92static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj) 93{ 94 struct radeon_bo *rbo = gem_to_radeon_bo(gobj); 95 int ret; 96 97 ret = radeon_bo_reserve(rbo, false); 98 if (likely(ret == 0)) { 99 radeon_bo_kunmap(rbo); 100 radeon_bo_unpin(rbo); 101 radeon_bo_unreserve(rbo); 102 } 103 drm_gem_object_unreference_unlocked(gobj); 104} 105 106static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev, 107 struct drm_mode_fb_cmd2 *mode_cmd, 108 struct drm_gem_object **gobj_p) 109{ 110 struct radeon_device *rdev = rfbdev->rdev; 111 struct drm_gem_object *gobj = NULL; 112 struct radeon_bo *rbo = NULL; 113 bool fb_tiled = false; /* useful for testing */ 114 u32 tiling_flags = 0; 115 int ret; 116 int aligned_size, size; 117 int height = mode_cmd->height; 118 u32 bpp, depth; 119 120 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp); 121 122 /* need to align pitch with crtc limits */ 123 mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, bpp, 124 fb_tiled) * ((bpp + 1) / 8); 125 126 if (rdev->family >= CHIP_R600) 127 height = roundup2(mode_cmd->height, 8); 128 size = mode_cmd->pitches[0] * height; 129 aligned_size = roundup2(size, PAGE_SIZE); 130 ret = radeon_gem_object_create(rdev, aligned_size, 0, 131 RADEON_GEM_DOMAIN_VRAM, 132 false, true, 133 &gobj); 134 if (ret) { 135 DRM_ERROR("failed to allocate framebuffer (%d)\n", 136 aligned_size); 137 return -ENOMEM; 138 } 139 rbo = gem_to_radeon_bo(gobj); 140 141 if (fb_tiled) 142 tiling_flags = RADEON_TILING_MACRO; 143 144#ifdef __BIG_ENDIAN 145 switch (bpp) { 146 case 32: 147 tiling_flags |= RADEON_TILING_SWAP_32BIT; 148 break; 149 case 16: 150 tiling_flags |= RADEON_TILING_SWAP_16BIT; 151 default: 152 break; 153 } 154#endif 155 156 if (tiling_flags) { 157 ret = radeon_bo_set_tiling_flags(rbo, 158 tiling_flags | RADEON_TILING_SURFACE, 159 mode_cmd->pitches[0]); 160 if (ret) 161 dev_err(rdev->dev, "FB failed to set tiling flags\n"); 162 } 163 164 165 ret = radeon_bo_reserve(rbo, false); 166 if (unlikely(ret != 0)) 167 goto out_unref; 168 /* Only 27 bit offset for legacy CRTC */ 169 ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, 170 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, 171 NULL); 172 if (ret) { 173 radeon_bo_unreserve(rbo); 174 goto out_unref; 175 } 176 if (fb_tiled) 177 radeon_bo_check_tiling(rbo, 0, 0); 178 ret = radeon_bo_kmap(rbo, NULL); 179 radeon_bo_unreserve(rbo); 180 if (ret) { 181 goto out_unref; 182 } 183 184 *gobj_p = gobj; 185 return 0; 186out_unref: 187 radeonfb_destroy_pinned_object(gobj); 188 *gobj_p = NULL; 189 return ret; 190} 191 192static int radeonfb_create(struct radeon_fbdev *rfbdev, 193 struct drm_fb_helper_surface_size *sizes) 194{ 195 struct radeon_device *rdev = rfbdev->rdev; 196 struct fb_info *info; 197 struct drm_framebuffer *fb = NULL; 198 struct drm_mode_fb_cmd2 mode_cmd; 199 struct drm_gem_object *gobj = NULL; 200 struct radeon_bo *rbo = NULL; 201 int ret; 202 unsigned long tmp; 203 204 mode_cmd.width = sizes->surface_width; 205 mode_cmd.height = sizes->surface_height; 206 207 /* avivo can't scanout real 24bpp */ 208 if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev)) 209 sizes->surface_bpp = 32; 210 211 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, 212 sizes->surface_depth); 213 214 ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj); 215 if (ret) { 216 DRM_ERROR("failed to create fbcon object %d\n", ret); 217 return ret; 218 } 219 220 rbo = gem_to_radeon_bo(gobj); 221 222 info = malloc(sizeof(*info), DRM_MEM_KMS, M_WAITOK | M_ZERO); 223 224 ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj); 225 if (ret) { 226 DRM_ERROR("failed to initalise framebuffer %d\n", ret); 227 goto out_unref; 228 } 229 230 fb = &rfbdev->rfb.base; 231 232 /* setup helper */ 233 rfbdev->helper.fb = fb; 234 rfbdev->helper.fbdev = info; 235 236 memset(rbo->kptr, 0x0, radeon_bo_size(rbo)); 237 238 tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start; 239 info->fb_size = radeon_bo_size(rbo); 240 info->fb_bpp = sizes->surface_bpp; 241 info->fb_width = sizes->surface_width; 242 info->fb_height = sizes->surface_height; 243 info->fb_pbase = rdev->mc.aper_base + tmp; 244 info->fb_vbase = (vm_offset_t)rbo->kptr; 245 246 DRM_INFO("fb mappable at 0x%" PRIXPTR "\n", info->fb_pbase); 247 DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base); 248 DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo)); 249 DRM_INFO("fb depth is %d\n", fb->depth); 250 DRM_INFO(" pitch is %d\n", fb->pitches[0]); 251 252 return 0; 253 254out_unref: 255 if (rbo) { 256 /* TODO? dumbbell@ */ 257 } 258 if (fb && ret) { 259 drm_gem_object_unreference(gobj); 260 drm_framebuffer_cleanup(fb); 261 free(fb, DRM_MEM_DRIVER); /* XXX malloc'd in radeon_user_framebuffer_create? */ 262 } 263 return ret; 264} 265 266static int radeon_fb_find_or_create_single(struct drm_fb_helper *helper, 267 struct drm_fb_helper_surface_size *sizes) 268{ 269 struct radeon_fbdev *rfbdev = (struct radeon_fbdev *)helper; 270 int new_fb = 0; 271 int ret; 272 273 if (!helper->fb) { 274 ret = radeonfb_create(rfbdev, sizes); 275 if (ret) 276 return ret; 277 new_fb = 1; 278 } 279 return new_fb; 280} 281 282void radeon_fb_output_poll_changed(struct radeon_device *rdev) 283{ 284 drm_fb_helper_hotplug_event(&rdev->mode_info.rfbdev->helper); 285} 286 287static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev) 288{ 289 struct fb_info *info; 290 struct radeon_framebuffer *rfb = &rfbdev->rfb; 291 292 if (rfbdev->helper.fbdev) { 293 info = rfbdev->helper.fbdev; 294 free(info, DRM_MEM_KMS); 295 } 296 297 if (rfb->obj) { 298 DRM_UNLOCK(dev); /* Work around lock recursion. dumbbell@ */ 299 radeonfb_destroy_pinned_object(rfb->obj); 300 DRM_LOCK(dev); 301 rfb->obj = NULL; 302 } 303 drm_fb_helper_fini(&rfbdev->helper); 304 drm_framebuffer_cleanup(&rfb->base); 305 306 return 0; 307} 308 309static struct drm_fb_helper_funcs radeon_fb_helper_funcs = { 310 .gamma_set = radeon_crtc_fb_gamma_set, 311 .gamma_get = radeon_crtc_fb_gamma_get, 312 .fb_probe = radeon_fb_find_or_create_single, 313}; 314 315int radeon_fbdev_init(struct radeon_device *rdev) 316{ 317 struct radeon_fbdev *rfbdev; 318 int bpp_sel = 32; 319 int ret; 320 321 /* select 8 bpp console on RN50 or 16MB cards */ 322 if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024)) 323 bpp_sel = 8; 324 325 rfbdev = malloc(sizeof(struct radeon_fbdev), 326 DRM_MEM_DRIVER, M_WAITOK | M_ZERO); 327 if (!rfbdev) 328 return -ENOMEM; 329 330 rfbdev->rdev = rdev; 331 rdev->mode_info.rfbdev = rfbdev; 332 rfbdev->helper.funcs = &radeon_fb_helper_funcs; 333 334 ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper, 335 rdev->num_crtc, 336 RADEONFB_CONN_LIMIT); 337 if (ret) { 338 free(rfbdev, DRM_MEM_DRIVER); 339 return ret; 340 } 341 342 drm_fb_helper_single_add_all_connectors(&rfbdev->helper); 343 drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel); 344 return 0; 345} 346 347void radeon_fbdev_fini(struct radeon_device *rdev) 348{ 349 if (!rdev->mode_info.rfbdev) 350 return; 351 352 radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev); 353 free(rdev->mode_info.rfbdev, DRM_MEM_DRIVER); 354 rdev->mode_info.rfbdev = NULL; 355} 356 357void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state) 358{ 359#ifdef DUMBBELL_WIP 360 fb_set_suspend(rdev->mode_info.rfbdev->helper.fbdev, state); 361#endif /* DUMBBELL_WIP */ 362} 363 364int radeon_fbdev_total_size(struct radeon_device *rdev) 365{ 366 struct radeon_bo *robj; 367 int size = 0; 368 369 robj = gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj); 370 size += radeon_bo_size(robj); 371 return size; 372} 373 374bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj) 375{ 376 if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj)) 377 return true; 378 return false; 379} 380 381struct fb_info * 382radeon_fb_helper_getinfo(device_t kdev) 383{ 384 struct drm_device *dev; 385 struct radeon_device *rdev; 386 struct radeon_fbdev *rfbdev; 387 struct fb_info *info; 388 389 dev = device_get_softc(kdev); 390 rdev = dev->dev_private; 391 rfbdev = rdev->mode_info.rfbdev; 392 if (rfbdev == NULL) 393 return (NULL); 394 395 info = rfbdev->helper.fbdev; 396 397 return (info); 398} 399