Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Red Hat Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the |
| 6 | * "Software"), to deal in the Software without restriction, including |
| 7 | * without limitation the rights to use, copy, modify, merge, publish, |
| 8 | * distribute, sub license, and/or sell copies of the Software, and to |
| 9 | * permit persons to whom the Software is furnished to do so, subject to |
| 10 | * the following conditions: |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 13 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 15 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 16 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 17 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 18 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 19 | * |
| 20 | * The above copyright notice and this permission notice (including the |
| 21 | * next paragraph) shall be included in all copies or substantial portions |
| 22 | * of the Software. |
| 23 | * |
| 24 | */ |
| 25 | /* |
| 26 | * Authors: Dave Airlie <airlied@redhat.com> |
| 27 | */ |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 28 | #include <drm/drmP.h> |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 29 | #include "ast_drv.h" |
| 30 | |
| 31 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 32 | #include <drm/drm_fb_helper.h> |
| 33 | #include <drm/drm_crtc_helper.h> |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 34 | |
| 35 | #include "ast_dram_tables.h" |
| 36 | |
| 37 | void ast_set_index_reg_mask(struct ast_private *ast, |
| 38 | uint32_t base, uint8_t index, |
| 39 | uint8_t mask, uint8_t val) |
| 40 | { |
| 41 | u8 tmp; |
| 42 | ast_io_write8(ast, base, index); |
| 43 | tmp = (ast_io_read8(ast, base + 1) & mask) | val; |
| 44 | ast_set_index_reg(ast, base, index, tmp); |
| 45 | } |
| 46 | |
| 47 | uint8_t ast_get_index_reg(struct ast_private *ast, |
| 48 | uint32_t base, uint8_t index) |
| 49 | { |
| 50 | uint8_t ret; |
| 51 | ast_io_write8(ast, base, index); |
| 52 | ret = ast_io_read8(ast, base + 1); |
| 53 | return ret; |
| 54 | } |
| 55 | |
| 56 | uint8_t ast_get_index_reg_mask(struct ast_private *ast, |
| 57 | uint32_t base, uint8_t index, uint8_t mask) |
| 58 | { |
| 59 | uint8_t ret; |
| 60 | ast_io_write8(ast, base, index); |
| 61 | ret = ast_io_read8(ast, base + 1) & mask; |
| 62 | return ret; |
| 63 | } |
| 64 | |
| 65 | |
| 66 | static int ast_detect_chip(struct drm_device *dev) |
| 67 | { |
| 68 | struct ast_private *ast = dev->dev_private; |
| 69 | |
| 70 | if (dev->pdev->device == PCI_CHIP_AST1180) { |
| 71 | ast->chip = AST1100; |
| 72 | DRM_INFO("AST 1180 detected\n"); |
| 73 | } else { |
| 74 | if (dev->pdev->revision >= 0x20) { |
| 75 | ast->chip = AST2300; |
| 76 | DRM_INFO("AST 2300 detected\n"); |
| 77 | } else if (dev->pdev->revision >= 0x10) { |
| 78 | uint32_t data; |
| 79 | ast_write32(ast, 0xf004, 0x1e6e0000); |
| 80 | ast_write32(ast, 0xf000, 0x1); |
| 81 | |
| 82 | data = ast_read32(ast, 0x1207c); |
| 83 | switch (data & 0x0300) { |
| 84 | case 0x0200: |
| 85 | ast->chip = AST1100; |
| 86 | DRM_INFO("AST 1100 detected\n"); |
| 87 | break; |
| 88 | case 0x0100: |
| 89 | ast->chip = AST2200; |
| 90 | DRM_INFO("AST 2200 detected\n"); |
| 91 | break; |
| 92 | case 0x0000: |
| 93 | ast->chip = AST2150; |
| 94 | DRM_INFO("AST 2150 detected\n"); |
| 95 | break; |
| 96 | default: |
| 97 | ast->chip = AST2100; |
| 98 | DRM_INFO("AST 2100 detected\n"); |
| 99 | break; |
| 100 | } |
| 101 | ast->vga2_clone = false; |
| 102 | } else { |
| 103 | ast->chip = 2000; |
| 104 | DRM_INFO("AST 2000 detected\n"); |
| 105 | } |
| 106 | } |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | static int ast_get_dram_info(struct drm_device *dev) |
| 111 | { |
| 112 | struct ast_private *ast = dev->dev_private; |
| 113 | uint32_t data, data2; |
| 114 | uint32_t denum, num, div, ref_pll; |
| 115 | |
| 116 | ast_write32(ast, 0xf004, 0x1e6e0000); |
| 117 | ast_write32(ast, 0xf000, 0x1); |
| 118 | |
| 119 | |
| 120 | ast_write32(ast, 0x10000, 0xfc600309); |
| 121 | |
| 122 | do { |
| 123 | ; |
| 124 | } while (ast_read32(ast, 0x10000) != 0x01); |
| 125 | data = ast_read32(ast, 0x10004); |
| 126 | |
| 127 | if (data & 0x400) |
| 128 | ast->dram_bus_width = 16; |
| 129 | else |
| 130 | ast->dram_bus_width = 32; |
| 131 | |
| 132 | if (ast->chip == AST2300) { |
| 133 | switch (data & 0x03) { |
| 134 | case 0: |
| 135 | ast->dram_type = AST_DRAM_512Mx16; |
| 136 | break; |
| 137 | default: |
| 138 | case 1: |
| 139 | ast->dram_type = AST_DRAM_1Gx16; |
| 140 | break; |
| 141 | case 2: |
| 142 | ast->dram_type = AST_DRAM_2Gx16; |
| 143 | break; |
| 144 | case 3: |
| 145 | ast->dram_type = AST_DRAM_4Gx16; |
| 146 | break; |
| 147 | } |
| 148 | } else { |
| 149 | switch (data & 0x0c) { |
| 150 | case 0: |
| 151 | case 4: |
| 152 | ast->dram_type = AST_DRAM_512Mx16; |
| 153 | break; |
| 154 | case 8: |
| 155 | if (data & 0x40) |
| 156 | ast->dram_type = AST_DRAM_1Gx16; |
| 157 | else |
| 158 | ast->dram_type = AST_DRAM_512Mx32; |
| 159 | break; |
| 160 | case 0xc: |
| 161 | ast->dram_type = AST_DRAM_1Gx32; |
| 162 | break; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | data = ast_read32(ast, 0x10120); |
| 167 | data2 = ast_read32(ast, 0x10170); |
| 168 | if (data2 & 0x2000) |
| 169 | ref_pll = 14318; |
| 170 | else |
| 171 | ref_pll = 12000; |
| 172 | |
| 173 | denum = data & 0x1f; |
| 174 | num = (data & 0x3fe0) >> 5; |
| 175 | data = (data & 0xc000) >> 14; |
| 176 | switch (data) { |
| 177 | case 3: |
| 178 | div = 0x4; |
| 179 | break; |
| 180 | case 2: |
| 181 | case 1: |
| 182 | div = 0x2; |
| 183 | break; |
| 184 | default: |
| 185 | div = 0x1; |
| 186 | break; |
| 187 | } |
| 188 | ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000); |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | uint32_t ast_get_max_dclk(struct drm_device *dev, int bpp) |
| 193 | { |
| 194 | struct ast_private *ast = dev->dev_private; |
| 195 | uint32_t dclk, jreg; |
| 196 | uint32_t dram_bus_width, mclk, dram_bandwidth, actual_dram_bandwidth, dram_efficency = 500; |
| 197 | |
| 198 | dram_bus_width = ast->dram_bus_width; |
| 199 | mclk = ast->mclk; |
| 200 | |
| 201 | if (ast->chip == AST2100 || |
| 202 | ast->chip == AST1100 || |
| 203 | ast->chip == AST2200 || |
| 204 | ast->chip == AST2150 || |
| 205 | ast->dram_bus_width == 16) |
| 206 | dram_efficency = 600; |
| 207 | else if (ast->chip == AST2300) |
| 208 | dram_efficency = 400; |
| 209 | |
| 210 | dram_bandwidth = mclk * dram_bus_width * 2 / 8; |
| 211 | actual_dram_bandwidth = dram_bandwidth * dram_efficency / 1000; |
| 212 | |
| 213 | if (ast->chip == AST1180) |
| 214 | dclk = actual_dram_bandwidth / ((bpp + 1) / 8); |
| 215 | else { |
| 216 | jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); |
| 217 | if ((jreg & 0x08) && (ast->chip == AST2000)) |
| 218 | dclk = actual_dram_bandwidth / ((bpp + 1 + 16) / 8); |
| 219 | else if ((jreg & 0x08) && (bpp == 8)) |
| 220 | dclk = actual_dram_bandwidth / ((bpp + 1 + 24) / 8); |
| 221 | else |
| 222 | dclk = actual_dram_bandwidth / ((bpp + 1) / 8); |
| 223 | } |
| 224 | |
| 225 | if (ast->chip == AST2100 || |
| 226 | ast->chip == AST2200 || |
| 227 | ast->chip == AST2300 || |
| 228 | ast->chip == AST1180) { |
| 229 | if (dclk > 200) |
| 230 | dclk = 200; |
| 231 | } else { |
| 232 | if (dclk > 165) |
| 233 | dclk = 165; |
| 234 | } |
| 235 | |
| 236 | return dclk; |
| 237 | } |
| 238 | |
| 239 | static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb) |
| 240 | { |
| 241 | struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb); |
| 242 | if (ast_fb->obj) |
| 243 | drm_gem_object_unreference_unlocked(ast_fb->obj); |
| 244 | |
| 245 | drm_framebuffer_cleanup(fb); |
| 246 | kfree(fb); |
| 247 | } |
| 248 | |
| 249 | static int ast_user_framebuffer_create_handle(struct drm_framebuffer *fb, |
| 250 | struct drm_file *file, |
| 251 | unsigned int *handle) |
| 252 | { |
| 253 | return -EINVAL; |
| 254 | } |
| 255 | |
| 256 | static const struct drm_framebuffer_funcs ast_fb_funcs = { |
| 257 | .destroy = ast_user_framebuffer_destroy, |
| 258 | .create_handle = ast_user_framebuffer_create_handle, |
| 259 | }; |
| 260 | |
| 261 | |
| 262 | int ast_framebuffer_init(struct drm_device *dev, |
| 263 | struct ast_framebuffer *ast_fb, |
| 264 | struct drm_mode_fb_cmd2 *mode_cmd, |
| 265 | struct drm_gem_object *obj) |
| 266 | { |
| 267 | int ret; |
| 268 | |
| 269 | ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs); |
| 270 | if (ret) { |
| 271 | DRM_ERROR("framebuffer init failed %d\n", ret); |
| 272 | return ret; |
| 273 | } |
| 274 | drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd); |
| 275 | ast_fb->obj = obj; |
| 276 | return 0; |
| 277 | } |
| 278 | |
| 279 | static struct drm_framebuffer * |
| 280 | ast_user_framebuffer_create(struct drm_device *dev, |
| 281 | struct drm_file *filp, |
| 282 | struct drm_mode_fb_cmd2 *mode_cmd) |
| 283 | { |
| 284 | struct drm_gem_object *obj; |
| 285 | struct ast_framebuffer *ast_fb; |
| 286 | int ret; |
| 287 | |
| 288 | obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]); |
| 289 | if (obj == NULL) |
| 290 | return ERR_PTR(-ENOENT); |
| 291 | |
| 292 | ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL); |
| 293 | if (!ast_fb) { |
| 294 | drm_gem_object_unreference_unlocked(obj); |
| 295 | return ERR_PTR(-ENOMEM); |
| 296 | } |
| 297 | |
| 298 | ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj); |
| 299 | if (ret) { |
| 300 | drm_gem_object_unreference_unlocked(obj); |
| 301 | kfree(ast_fb); |
| 302 | return ERR_PTR(ret); |
| 303 | } |
| 304 | return &ast_fb->base; |
| 305 | } |
| 306 | |
| 307 | static const struct drm_mode_config_funcs ast_mode_funcs = { |
| 308 | .fb_create = ast_user_framebuffer_create, |
| 309 | }; |
| 310 | |
| 311 | static u32 ast_get_vram_info(struct drm_device *dev) |
| 312 | { |
| 313 | struct ast_private *ast = dev->dev_private; |
| 314 | u8 jreg; |
| 315 | |
| 316 | ast_open_key(ast); |
| 317 | |
| 318 | jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff); |
| 319 | switch (jreg & 3) { |
| 320 | case 0: return AST_VIDMEM_SIZE_8M; |
| 321 | case 1: return AST_VIDMEM_SIZE_16M; |
| 322 | case 2: return AST_VIDMEM_SIZE_32M; |
| 323 | case 3: return AST_VIDMEM_SIZE_64M; |
| 324 | } |
| 325 | return AST_VIDMEM_DEFAULT_SIZE; |
| 326 | } |
| 327 | |
| 328 | int ast_driver_load(struct drm_device *dev, unsigned long flags) |
| 329 | { |
| 330 | struct ast_private *ast; |
| 331 | int ret = 0; |
| 332 | |
| 333 | ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL); |
| 334 | if (!ast) |
| 335 | return -ENOMEM; |
| 336 | |
| 337 | dev->dev_private = ast; |
| 338 | ast->dev = dev; |
| 339 | |
| 340 | ast->regs = pci_iomap(dev->pdev, 1, 0); |
| 341 | if (!ast->regs) { |
| 342 | ret = -EIO; |
| 343 | goto out_free; |
| 344 | } |
| 345 | ast->ioregs = pci_iomap(dev->pdev, 2, 0); |
| 346 | if (!ast->ioregs) { |
| 347 | ret = -EIO; |
| 348 | goto out_free; |
| 349 | } |
| 350 | |
| 351 | ast_detect_chip(dev); |
| 352 | |
| 353 | if (ast->chip != AST1180) { |
| 354 | ast_get_dram_info(dev); |
| 355 | ast->vram_size = ast_get_vram_info(dev); |
| 356 | DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size); |
| 357 | } |
| 358 | |
| 359 | ret = ast_mm_init(ast); |
| 360 | if (ret) |
| 361 | goto out_free; |
| 362 | |
| 363 | drm_mode_config_init(dev); |
| 364 | |
| 365 | dev->mode_config.funcs = (void *)&ast_mode_funcs; |
| 366 | dev->mode_config.min_width = 0; |
| 367 | dev->mode_config.min_height = 0; |
| 368 | dev->mode_config.preferred_depth = 24; |
| 369 | dev->mode_config.prefer_shadow = 1; |
| 370 | |
| 371 | if (ast->chip == AST2100 || |
| 372 | ast->chip == AST2200 || |
| 373 | ast->chip == AST2300 || |
| 374 | ast->chip == AST1180) { |
| 375 | dev->mode_config.max_width = 1920; |
| 376 | dev->mode_config.max_height = 2048; |
| 377 | } else { |
| 378 | dev->mode_config.max_width = 1600; |
| 379 | dev->mode_config.max_height = 1200; |
| 380 | } |
| 381 | |
| 382 | ret = ast_mode_init(dev); |
| 383 | if (ret) |
| 384 | goto out_free; |
| 385 | |
| 386 | ret = ast_fbdev_init(dev); |
| 387 | if (ret) |
| 388 | goto out_free; |
| 389 | |
| 390 | return 0; |
| 391 | out_free: |
| 392 | kfree(ast); |
| 393 | dev->dev_private = NULL; |
| 394 | return ret; |
| 395 | } |
| 396 | |
| 397 | int ast_driver_unload(struct drm_device *dev) |
| 398 | { |
| 399 | struct ast_private *ast = dev->dev_private; |
| 400 | |
| 401 | ast_mode_fini(dev); |
| 402 | ast_fbdev_fini(dev); |
| 403 | drm_mode_config_cleanup(dev); |
| 404 | |
| 405 | ast_mm_fini(ast); |
| 406 | pci_iounmap(dev->pdev, ast->ioregs); |
| 407 | pci_iounmap(dev->pdev, ast->regs); |
| 408 | kfree(ast); |
| 409 | return 0; |
| 410 | } |
| 411 | |
| 412 | int ast_gem_create(struct drm_device *dev, |
| 413 | u32 size, bool iskernel, |
| 414 | struct drm_gem_object **obj) |
| 415 | { |
| 416 | struct ast_bo *astbo; |
| 417 | int ret; |
| 418 | |
| 419 | *obj = NULL; |
| 420 | |
| 421 | size = roundup(size, PAGE_SIZE); |
| 422 | if (size == 0) |
| 423 | return -EINVAL; |
| 424 | |
| 425 | ret = ast_bo_create(dev, size, 0, 0, &astbo); |
| 426 | if (ret) { |
| 427 | if (ret != -ERESTARTSYS) |
| 428 | DRM_ERROR("failed to allocate GEM object\n"); |
| 429 | return ret; |
| 430 | } |
| 431 | *obj = &astbo->gem; |
| 432 | return 0; |
| 433 | } |
| 434 | |
| 435 | int ast_dumb_create(struct drm_file *file, |
| 436 | struct drm_device *dev, |
| 437 | struct drm_mode_create_dumb *args) |
| 438 | { |
| 439 | int ret; |
| 440 | struct drm_gem_object *gobj; |
| 441 | u32 handle; |
| 442 | |
| 443 | args->pitch = args->width * ((args->bpp + 7) / 8); |
| 444 | args->size = args->pitch * args->height; |
| 445 | |
| 446 | ret = ast_gem_create(dev, args->size, false, |
| 447 | &gobj); |
| 448 | if (ret) |
| 449 | return ret; |
| 450 | |
| 451 | ret = drm_gem_handle_create(file, gobj, &handle); |
| 452 | drm_gem_object_unreference_unlocked(gobj); |
| 453 | if (ret) |
| 454 | return ret; |
| 455 | |
| 456 | args->handle = handle; |
| 457 | return 0; |
| 458 | } |
| 459 | |
| 460 | int ast_dumb_destroy(struct drm_file *file, |
| 461 | struct drm_device *dev, |
| 462 | uint32_t handle) |
| 463 | { |
| 464 | return drm_gem_handle_delete(file, handle); |
| 465 | } |
| 466 | |
| 467 | int ast_gem_init_object(struct drm_gem_object *obj) |
| 468 | { |
| 469 | BUG(); |
| 470 | return 0; |
| 471 | } |
| 472 | |
| 473 | void ast_bo_unref(struct ast_bo **bo) |
| 474 | { |
| 475 | struct ttm_buffer_object *tbo; |
| 476 | |
| 477 | if ((*bo) == NULL) |
| 478 | return; |
| 479 | |
| 480 | tbo = &((*bo)->bo); |
| 481 | ttm_bo_unref(&tbo); |
| 482 | if (tbo == NULL) |
| 483 | *bo = NULL; |
| 484 | |
| 485 | } |
| 486 | void ast_gem_free_object(struct drm_gem_object *obj) |
| 487 | { |
| 488 | struct ast_bo *ast_bo = gem_to_ast_bo(obj); |
| 489 | |
| 490 | if (!ast_bo) |
| 491 | return; |
| 492 | ast_bo_unref(&ast_bo); |
| 493 | } |
| 494 | |
| 495 | |
| 496 | static inline u64 ast_bo_mmap_offset(struct ast_bo *bo) |
| 497 | { |
| 498 | return bo->bo.addr_space_offset; |
| 499 | } |
| 500 | int |
| 501 | ast_dumb_mmap_offset(struct drm_file *file, |
| 502 | struct drm_device *dev, |
| 503 | uint32_t handle, |
| 504 | uint64_t *offset) |
| 505 | { |
| 506 | struct drm_gem_object *obj; |
| 507 | int ret; |
| 508 | struct ast_bo *bo; |
| 509 | |
| 510 | mutex_lock(&dev->struct_mutex); |
| 511 | obj = drm_gem_object_lookup(dev, file, handle); |
| 512 | if (obj == NULL) { |
| 513 | ret = -ENOENT; |
| 514 | goto out_unlock; |
| 515 | } |
| 516 | |
| 517 | bo = gem_to_ast_bo(obj); |
| 518 | *offset = ast_bo_mmap_offset(bo); |
| 519 | |
| 520 | drm_gem_object_unreference(obj); |
| 521 | ret = 0; |
| 522 | out_unlock: |
| 523 | mutex_unlock(&dev->struct_mutex); |
| 524 | return ret; |
| 525 | |
| 526 | } |
| 527 | |