1312fec14SDave Airlie /* 2312fec14SDave Airlie * Copyright 2012 Red Hat Inc. 3312fec14SDave Airlie * 4312fec14SDave Airlie * Permission is hereby granted, free of charge, to any person obtaining a 5312fec14SDave Airlie * copy of this software and associated documentation files (the 6312fec14SDave Airlie * "Software"), to deal in the Software without restriction, including 7312fec14SDave Airlie * without limitation the rights to use, copy, modify, merge, publish, 8312fec14SDave Airlie * distribute, sub license, and/or sell copies of the Software, and to 9312fec14SDave Airlie * permit persons to whom the Software is furnished to do so, subject to 10312fec14SDave Airlie * the following conditions: 11312fec14SDave Airlie * 12312fec14SDave Airlie * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 13312fec14SDave Airlie * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 14312fec14SDave Airlie * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 15312fec14SDave Airlie * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 16312fec14SDave Airlie * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 17312fec14SDave Airlie * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 18312fec14SDave Airlie * USE OR OTHER DEALINGS IN THE SOFTWARE. 19312fec14SDave Airlie * 20312fec14SDave Airlie * The above copyright notice and this permission notice (including the 21312fec14SDave Airlie * next paragraph) shall be included in all copies or substantial portions 22312fec14SDave Airlie * of the Software. 23312fec14SDave Airlie * 24312fec14SDave Airlie */ 25312fec14SDave Airlie /* 26312fec14SDave Airlie * Authors: Dave Airlie <airlied@redhat.com> 27312fec14SDave Airlie */ 28312fec14SDave Airlie #include "drmP.h" 29312fec14SDave Airlie #include "ast_drv.h" 30312fec14SDave Airlie 31312fec14SDave Airlie 32312fec14SDave Airlie #include "drm_fb_helper.h" 33312fec14SDave Airlie #include "drm_crtc_helper.h" 34312fec14SDave Airlie 35312fec14SDave Airlie #include "ast_dram_tables.h" 36312fec14SDave Airlie 37312fec14SDave Airlie void ast_set_index_reg_mask(struct ast_private *ast, 38312fec14SDave Airlie uint32_t base, uint8_t index, 39312fec14SDave Airlie uint8_t mask, uint8_t val) 40312fec14SDave Airlie { 41312fec14SDave Airlie u8 tmp; 42312fec14SDave Airlie ast_io_write8(ast, base, index); 43312fec14SDave Airlie tmp = (ast_io_read8(ast, base + 1) & mask) | val; 44312fec14SDave Airlie ast_set_index_reg(ast, base, index, tmp); 45312fec14SDave Airlie } 46312fec14SDave Airlie 47312fec14SDave Airlie uint8_t ast_get_index_reg(struct ast_private *ast, 48312fec14SDave Airlie uint32_t base, uint8_t index) 49312fec14SDave Airlie { 50312fec14SDave Airlie uint8_t ret; 51312fec14SDave Airlie ast_io_write8(ast, base, index); 52312fec14SDave Airlie ret = ast_io_read8(ast, base + 1); 53312fec14SDave Airlie return ret; 54312fec14SDave Airlie } 55312fec14SDave Airlie 56312fec14SDave Airlie uint8_t ast_get_index_reg_mask(struct ast_private *ast, 57312fec14SDave Airlie uint32_t base, uint8_t index, uint8_t mask) 58312fec14SDave Airlie { 59312fec14SDave Airlie uint8_t ret; 60312fec14SDave Airlie ast_io_write8(ast, base, index); 61312fec14SDave Airlie ret = ast_io_read8(ast, base + 1) & mask; 62312fec14SDave Airlie return ret; 63312fec14SDave Airlie } 64312fec14SDave Airlie 65312fec14SDave Airlie 66312fec14SDave Airlie static int ast_detect_chip(struct drm_device *dev) 67312fec14SDave Airlie { 68312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 69312fec14SDave Airlie 70312fec14SDave Airlie if (dev->pdev->device == PCI_CHIP_AST1180) { 71312fec14SDave Airlie ast->chip = AST1100; 72312fec14SDave Airlie DRM_INFO("AST 1180 detected\n"); 73312fec14SDave Airlie } else { 74312fec14SDave Airlie if (dev->pdev->revision >= 0x20) { 75312fec14SDave Airlie ast->chip = AST2300; 76312fec14SDave Airlie DRM_INFO("AST 2300 detected\n"); 77312fec14SDave Airlie } else if (dev->pdev->revision >= 0x10) { 78312fec14SDave Airlie uint32_t data; 79312fec14SDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 80312fec14SDave Airlie ast_write32(ast, 0xf000, 0x1); 81312fec14SDave Airlie 82312fec14SDave Airlie data = ast_read32(ast, 0x1207c); 83312fec14SDave Airlie switch (data & 0x0300) { 84312fec14SDave Airlie case 0x0200: 85312fec14SDave Airlie ast->chip = AST1100; 86312fec14SDave Airlie DRM_INFO("AST 1100 detected\n"); 87312fec14SDave Airlie break; 88312fec14SDave Airlie case 0x0100: 89312fec14SDave Airlie ast->chip = AST2200; 90312fec14SDave Airlie DRM_INFO("AST 2200 detected\n"); 91312fec14SDave Airlie break; 92312fec14SDave Airlie case 0x0000: 93312fec14SDave Airlie ast->chip = AST2150; 94312fec14SDave Airlie DRM_INFO("AST 2150 detected\n"); 95312fec14SDave Airlie break; 96312fec14SDave Airlie default: 97312fec14SDave Airlie ast->chip = AST2100; 98312fec14SDave Airlie DRM_INFO("AST 2100 detected\n"); 99312fec14SDave Airlie break; 100312fec14SDave Airlie } 101312fec14SDave Airlie ast->vga2_clone = false; 102312fec14SDave Airlie } else { 103312fec14SDave Airlie ast->chip = 2000; 104312fec14SDave Airlie DRM_INFO("AST 2000 detected\n"); 105312fec14SDave Airlie } 106312fec14SDave Airlie } 107312fec14SDave Airlie return 0; 108312fec14SDave Airlie } 109312fec14SDave Airlie 110312fec14SDave Airlie static int ast_get_dram_info(struct drm_device *dev) 111312fec14SDave Airlie { 112312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 113312fec14SDave Airlie uint32_t data, data2; 114312fec14SDave Airlie uint32_t denum, num, div, ref_pll; 115312fec14SDave Airlie 116312fec14SDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 117312fec14SDave Airlie ast_write32(ast, 0xf000, 0x1); 118312fec14SDave Airlie 119312fec14SDave Airlie 120312fec14SDave Airlie ast_write32(ast, 0x10000, 0xfc600309); 121312fec14SDave Airlie 122312fec14SDave Airlie do { 123312fec14SDave Airlie ; 124312fec14SDave Airlie } while (ast_read32(ast, 0x10000) != 0x01); 125312fec14SDave Airlie data = ast_read32(ast, 0x10004); 126312fec14SDave Airlie 127312fec14SDave Airlie if (data & 0x400) 128312fec14SDave Airlie ast->dram_bus_width = 16; 129312fec14SDave Airlie else 130312fec14SDave Airlie ast->dram_bus_width = 32; 131312fec14SDave Airlie 132312fec14SDave Airlie if (ast->chip == AST2300) { 133312fec14SDave Airlie switch (data & 0x03) { 134312fec14SDave Airlie case 0: 135312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 136312fec14SDave Airlie break; 137312fec14SDave Airlie default: 138312fec14SDave Airlie case 1: 139312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 140312fec14SDave Airlie break; 141312fec14SDave Airlie case 2: 142312fec14SDave Airlie ast->dram_type = AST_DRAM_2Gx16; 143312fec14SDave Airlie break; 144312fec14SDave Airlie case 3: 145312fec14SDave Airlie ast->dram_type = AST_DRAM_4Gx16; 146312fec14SDave Airlie break; 147312fec14SDave Airlie } 148312fec14SDave Airlie } else { 149312fec14SDave Airlie switch (data & 0x0c) { 150312fec14SDave Airlie case 0: 151312fec14SDave Airlie case 4: 152312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 153312fec14SDave Airlie break; 154312fec14SDave Airlie case 8: 155312fec14SDave Airlie if (data & 0x40) 156312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 157312fec14SDave Airlie else 158312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx32; 159312fec14SDave Airlie break; 160312fec14SDave Airlie case 0xc: 161312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx32; 162312fec14SDave Airlie break; 163312fec14SDave Airlie } 164312fec14SDave Airlie } 165312fec14SDave Airlie 166312fec14SDave Airlie data = ast_read32(ast, 0x10120); 167312fec14SDave Airlie data2 = ast_read32(ast, 0x10170); 168312fec14SDave Airlie if (data2 & 0x2000) 169312fec14SDave Airlie ref_pll = 14318; 170312fec14SDave Airlie else 171312fec14SDave Airlie ref_pll = 12000; 172312fec14SDave Airlie 173312fec14SDave Airlie denum = data & 0x1f; 174312fec14SDave Airlie num = (data & 0x3fe0) >> 5; 175312fec14SDave Airlie data = (data & 0xc000) >> 14; 176312fec14SDave Airlie switch (data) { 177312fec14SDave Airlie case 3: 178312fec14SDave Airlie div = 0x4; 179312fec14SDave Airlie break; 180312fec14SDave Airlie case 2: 181312fec14SDave Airlie case 1: 182312fec14SDave Airlie div = 0x2; 183312fec14SDave Airlie break; 184312fec14SDave Airlie default: 185312fec14SDave Airlie div = 0x1; 186312fec14SDave Airlie break; 187312fec14SDave Airlie } 188312fec14SDave Airlie ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000); 189312fec14SDave Airlie return 0; 190312fec14SDave Airlie } 191312fec14SDave Airlie 192312fec14SDave Airlie uint32_t ast_get_max_dclk(struct drm_device *dev, int bpp) 193312fec14SDave Airlie { 194312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 195312fec14SDave Airlie uint32_t dclk, jreg; 196312fec14SDave Airlie uint32_t dram_bus_width, mclk, dram_bandwidth, actual_dram_bandwidth, dram_efficency = 500; 197312fec14SDave Airlie 198312fec14SDave Airlie dram_bus_width = ast->dram_bus_width; 199312fec14SDave Airlie mclk = ast->mclk; 200312fec14SDave Airlie 201312fec14SDave Airlie if (ast->chip == AST2100 || 202312fec14SDave Airlie ast->chip == AST1100 || 203312fec14SDave Airlie ast->chip == AST2200 || 204312fec14SDave Airlie ast->chip == AST2150 || 205312fec14SDave Airlie ast->dram_bus_width == 16) 206312fec14SDave Airlie dram_efficency = 600; 207312fec14SDave Airlie else if (ast->chip == AST2300) 208312fec14SDave Airlie dram_efficency = 400; 209312fec14SDave Airlie 210312fec14SDave Airlie dram_bandwidth = mclk * dram_bus_width * 2 / 8; 211312fec14SDave Airlie actual_dram_bandwidth = dram_bandwidth * dram_efficency / 1000; 212312fec14SDave Airlie 213312fec14SDave Airlie if (ast->chip == AST1180) 214312fec14SDave Airlie dclk = actual_dram_bandwidth / ((bpp + 1) / 8); 215312fec14SDave Airlie else { 216312fec14SDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); 217312fec14SDave Airlie if ((jreg & 0x08) && (ast->chip == AST2000)) 218312fec14SDave Airlie dclk = actual_dram_bandwidth / ((bpp + 1 + 16) / 8); 219312fec14SDave Airlie else if ((jreg & 0x08) && (bpp == 8)) 220312fec14SDave Airlie dclk = actual_dram_bandwidth / ((bpp + 1 + 24) / 8); 221312fec14SDave Airlie else 222312fec14SDave Airlie dclk = actual_dram_bandwidth / ((bpp + 1) / 8); 223312fec14SDave Airlie } 224312fec14SDave Airlie 225312fec14SDave Airlie if (ast->chip == AST2100 || 226312fec14SDave Airlie ast->chip == AST2200 || 227312fec14SDave Airlie ast->chip == AST2300 || 228312fec14SDave Airlie ast->chip == AST1180) { 229312fec14SDave Airlie if (dclk > 200) 230312fec14SDave Airlie dclk = 200; 231312fec14SDave Airlie } else { 232312fec14SDave Airlie if (dclk > 165) 233312fec14SDave Airlie dclk = 165; 234312fec14SDave Airlie } 235312fec14SDave Airlie 236312fec14SDave Airlie return dclk; 237312fec14SDave Airlie } 238312fec14SDave Airlie 239312fec14SDave Airlie static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb) 240312fec14SDave Airlie { 241312fec14SDave Airlie struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb); 242312fec14SDave Airlie if (ast_fb->obj) 243312fec14SDave Airlie drm_gem_object_unreference_unlocked(ast_fb->obj); 244312fec14SDave Airlie 245312fec14SDave Airlie drm_framebuffer_cleanup(fb); 246312fec14SDave Airlie kfree(fb); 247312fec14SDave Airlie } 248312fec14SDave Airlie 249312fec14SDave Airlie static int ast_user_framebuffer_create_handle(struct drm_framebuffer *fb, 250312fec14SDave Airlie struct drm_file *file, 251312fec14SDave Airlie unsigned int *handle) 252312fec14SDave Airlie { 253312fec14SDave Airlie return -EINVAL; 254312fec14SDave Airlie } 255312fec14SDave Airlie 256312fec14SDave Airlie static const struct drm_framebuffer_funcs ast_fb_funcs = { 257312fec14SDave Airlie .destroy = ast_user_framebuffer_destroy, 258312fec14SDave Airlie .create_handle = ast_user_framebuffer_create_handle, 259312fec14SDave Airlie }; 260312fec14SDave Airlie 261312fec14SDave Airlie 262312fec14SDave Airlie int ast_framebuffer_init(struct drm_device *dev, 263312fec14SDave Airlie struct ast_framebuffer *ast_fb, 264312fec14SDave Airlie struct drm_mode_fb_cmd2 *mode_cmd, 265312fec14SDave Airlie struct drm_gem_object *obj) 266312fec14SDave Airlie { 267312fec14SDave Airlie int ret; 268312fec14SDave Airlie 269312fec14SDave Airlie ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs); 270312fec14SDave Airlie if (ret) { 271312fec14SDave Airlie DRM_ERROR("framebuffer init failed %d\n", ret); 272312fec14SDave Airlie return ret; 273312fec14SDave Airlie } 274312fec14SDave Airlie drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd); 275312fec14SDave Airlie ast_fb->obj = obj; 276312fec14SDave Airlie return 0; 277312fec14SDave Airlie } 278312fec14SDave Airlie 279312fec14SDave Airlie static struct drm_framebuffer * 280312fec14SDave Airlie ast_user_framebuffer_create(struct drm_device *dev, 281312fec14SDave Airlie struct drm_file *filp, 282312fec14SDave Airlie struct drm_mode_fb_cmd2 *mode_cmd) 283312fec14SDave Airlie { 284312fec14SDave Airlie struct drm_gem_object *obj; 285312fec14SDave Airlie struct ast_framebuffer *ast_fb; 286312fec14SDave Airlie int ret; 287312fec14SDave Airlie 288312fec14SDave Airlie obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]); 289312fec14SDave Airlie if (obj == NULL) 290312fec14SDave Airlie return ERR_PTR(-ENOENT); 291312fec14SDave Airlie 292312fec14SDave Airlie ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL); 293312fec14SDave Airlie if (!ast_fb) { 294312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 295312fec14SDave Airlie return ERR_PTR(-ENOMEM); 296312fec14SDave Airlie } 297312fec14SDave Airlie 298312fec14SDave Airlie ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj); 299312fec14SDave Airlie if (ret) { 300312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 301312fec14SDave Airlie kfree(ast_fb); 302312fec14SDave Airlie return ERR_PTR(ret); 303312fec14SDave Airlie } 304312fec14SDave Airlie return &ast_fb->base; 305312fec14SDave Airlie } 306312fec14SDave Airlie 307312fec14SDave Airlie static const struct drm_mode_config_funcs ast_mode_funcs = { 308312fec14SDave Airlie .fb_create = ast_user_framebuffer_create, 309312fec14SDave Airlie }; 310312fec14SDave Airlie 311312fec14SDave Airlie static u32 ast_get_vram_info(struct drm_device *dev) 312312fec14SDave Airlie { 313312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 314312fec14SDave Airlie u8 jreg; 315312fec14SDave Airlie 316312fec14SDave Airlie ast_open_key(ast); 317312fec14SDave Airlie 318312fec14SDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff); 319312fec14SDave Airlie switch (jreg & 3) { 320312fec14SDave Airlie case 0: return AST_VIDMEM_SIZE_8M; 321312fec14SDave Airlie case 1: return AST_VIDMEM_SIZE_16M; 322312fec14SDave Airlie case 2: return AST_VIDMEM_SIZE_32M; 323312fec14SDave Airlie case 3: return AST_VIDMEM_SIZE_64M; 324312fec14SDave Airlie } 325312fec14SDave Airlie return AST_VIDMEM_DEFAULT_SIZE; 326312fec14SDave Airlie } 327312fec14SDave Airlie 328312fec14SDave Airlie int ast_driver_load(struct drm_device *dev, unsigned long flags) 329312fec14SDave Airlie { 330312fec14SDave Airlie struct ast_private *ast; 331312fec14SDave Airlie int ret = 0; 332312fec14SDave Airlie 333312fec14SDave Airlie ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL); 334312fec14SDave Airlie if (!ast) 335312fec14SDave Airlie return -ENOMEM; 336312fec14SDave Airlie 337312fec14SDave Airlie dev->dev_private = ast; 338312fec14SDave Airlie ast->dev = dev; 339312fec14SDave Airlie 340312fec14SDave Airlie ast->regs = pci_iomap(dev->pdev, 1, 0); 341312fec14SDave Airlie if (!ast->regs) { 342312fec14SDave Airlie ret = -EIO; 343312fec14SDave Airlie goto out_free; 344312fec14SDave Airlie } 345312fec14SDave Airlie ast->ioregs = pci_iomap(dev->pdev, 2, 0); 346312fec14SDave Airlie if (!ast->ioregs) { 347312fec14SDave Airlie ret = -EIO; 348312fec14SDave Airlie goto out_free; 349312fec14SDave Airlie } 350312fec14SDave Airlie 351312fec14SDave Airlie ast_detect_chip(dev); 352312fec14SDave Airlie 353312fec14SDave Airlie if (ast->chip != AST1180) { 354312fec14SDave Airlie ast_get_dram_info(dev); 355312fec14SDave Airlie ast->vram_size = ast_get_vram_info(dev); 356312fec14SDave Airlie DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size); 357312fec14SDave Airlie } 358312fec14SDave Airlie 359312fec14SDave Airlie ret = ast_mm_init(ast); 360312fec14SDave Airlie if (ret) 361312fec14SDave Airlie goto out_free; 362312fec14SDave Airlie 363312fec14SDave Airlie drm_mode_config_init(dev); 364312fec14SDave Airlie 365312fec14SDave Airlie dev->mode_config.funcs = (void *)&ast_mode_funcs; 366312fec14SDave Airlie dev->mode_config.min_width = 0; 367312fec14SDave Airlie dev->mode_config.min_height = 0; 368312fec14SDave Airlie dev->mode_config.preferred_depth = 24; 369312fec14SDave Airlie dev->mode_config.prefer_shadow = 1; 370312fec14SDave Airlie 371312fec14SDave Airlie if (ast->chip == AST2100 || 372312fec14SDave Airlie ast->chip == AST2200 || 373312fec14SDave Airlie ast->chip == AST2300 || 374312fec14SDave Airlie ast->chip == AST1180) { 375312fec14SDave Airlie dev->mode_config.max_width = 1920; 376312fec14SDave Airlie dev->mode_config.max_height = 2048; 377312fec14SDave Airlie } else { 378312fec14SDave Airlie dev->mode_config.max_width = 1600; 379312fec14SDave Airlie dev->mode_config.max_height = 1200; 380312fec14SDave Airlie } 381312fec14SDave Airlie 382312fec14SDave Airlie ret = ast_mode_init(dev); 383312fec14SDave Airlie if (ret) 384312fec14SDave Airlie goto out_free; 385312fec14SDave Airlie 386312fec14SDave Airlie ret = ast_fbdev_init(dev); 387312fec14SDave Airlie if (ret) 388312fec14SDave Airlie goto out_free; 389312fec14SDave Airlie 390312fec14SDave Airlie return 0; 391312fec14SDave Airlie out_free: 392312fec14SDave Airlie kfree(ast); 393312fec14SDave Airlie dev->dev_private = NULL; 394312fec14SDave Airlie return ret; 395312fec14SDave Airlie } 396312fec14SDave Airlie 397312fec14SDave Airlie int ast_driver_unload(struct drm_device *dev) 398312fec14SDave Airlie { 399312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 400312fec14SDave Airlie 401312fec14SDave Airlie ast_mode_fini(dev); 402312fec14SDave Airlie ast_fbdev_fini(dev); 403312fec14SDave Airlie drm_mode_config_cleanup(dev); 404312fec14SDave Airlie 405312fec14SDave Airlie ast_mm_fini(ast); 406312fec14SDave Airlie pci_iounmap(dev->pdev, ast->ioregs); 407312fec14SDave Airlie pci_iounmap(dev->pdev, ast->regs); 408312fec14SDave Airlie kfree(ast); 409312fec14SDave Airlie return 0; 410312fec14SDave Airlie } 411312fec14SDave Airlie 412312fec14SDave Airlie int ast_gem_create(struct drm_device *dev, 413312fec14SDave Airlie u32 size, bool iskernel, 414312fec14SDave Airlie struct drm_gem_object **obj) 415312fec14SDave Airlie { 416312fec14SDave Airlie struct ast_bo *astbo; 417312fec14SDave Airlie int ret; 418312fec14SDave Airlie 419312fec14SDave Airlie *obj = NULL; 420312fec14SDave Airlie 421312fec14SDave Airlie size = roundup(size, PAGE_SIZE); 422312fec14SDave Airlie if (size == 0) 423312fec14SDave Airlie return -EINVAL; 424312fec14SDave Airlie 425312fec14SDave Airlie ret = ast_bo_create(dev, size, 0, 0, &astbo); 426312fec14SDave Airlie if (ret) { 427312fec14SDave Airlie if (ret != -ERESTARTSYS) 428312fec14SDave Airlie DRM_ERROR("failed to allocate GEM object\n"); 429312fec14SDave Airlie return ret; 430312fec14SDave Airlie } 431312fec14SDave Airlie *obj = &astbo->gem; 432312fec14SDave Airlie return 0; 433312fec14SDave Airlie } 434312fec14SDave Airlie 435312fec14SDave Airlie int ast_dumb_create(struct drm_file *file, 436312fec14SDave Airlie struct drm_device *dev, 437312fec14SDave Airlie struct drm_mode_create_dumb *args) 438312fec14SDave Airlie { 439312fec14SDave Airlie int ret; 440312fec14SDave Airlie struct drm_gem_object *gobj; 441312fec14SDave Airlie u32 handle; 442312fec14SDave Airlie 443312fec14SDave Airlie args->pitch = args->width * ((args->bpp + 7) / 8); 444312fec14SDave Airlie args->size = args->pitch * args->height; 445312fec14SDave Airlie 446312fec14SDave Airlie ret = ast_gem_create(dev, args->size, false, 447312fec14SDave Airlie &gobj); 448312fec14SDave Airlie if (ret) 449312fec14SDave Airlie return ret; 450312fec14SDave Airlie 451312fec14SDave Airlie ret = drm_gem_handle_create(file, gobj, &handle); 452312fec14SDave Airlie drm_gem_object_unreference_unlocked(gobj); 453312fec14SDave Airlie if (ret) 454312fec14SDave Airlie return ret; 455312fec14SDave Airlie 456312fec14SDave Airlie args->handle = handle; 457312fec14SDave Airlie return 0; 458312fec14SDave Airlie } 459312fec14SDave Airlie 460312fec14SDave Airlie int ast_dumb_destroy(struct drm_file *file, 461312fec14SDave Airlie struct drm_device *dev, 462312fec14SDave Airlie uint32_t handle) 463312fec14SDave Airlie { 464312fec14SDave Airlie return drm_gem_handle_delete(file, handle); 465312fec14SDave Airlie } 466312fec14SDave Airlie 467312fec14SDave Airlie int ast_gem_init_object(struct drm_gem_object *obj) 468312fec14SDave Airlie { 469312fec14SDave Airlie BUG(); 470312fec14SDave Airlie return 0; 471312fec14SDave Airlie } 472312fec14SDave Airlie 473312fec14SDave Airlie void ast_bo_unref(struct ast_bo **bo) 474312fec14SDave Airlie { 475312fec14SDave Airlie struct ttm_buffer_object *tbo; 476312fec14SDave Airlie 477312fec14SDave Airlie if ((*bo) == NULL) 478312fec14SDave Airlie return; 479312fec14SDave Airlie 480312fec14SDave Airlie tbo = &((*bo)->bo); 481312fec14SDave Airlie ttm_bo_unref(&tbo); 482312fec14SDave Airlie if (tbo == NULL) 483312fec14SDave Airlie *bo = NULL; 484312fec14SDave Airlie 485312fec14SDave Airlie } 486312fec14SDave Airlie void ast_gem_free_object(struct drm_gem_object *obj) 487312fec14SDave Airlie { 488312fec14SDave Airlie struct ast_bo *ast_bo = gem_to_ast_bo(obj); 489312fec14SDave Airlie 490312fec14SDave Airlie if (!ast_bo) 491312fec14SDave Airlie return; 492312fec14SDave Airlie ast_bo_unref(&ast_bo); 493312fec14SDave Airlie } 494312fec14SDave Airlie 495312fec14SDave Airlie 496312fec14SDave Airlie static inline u64 ast_bo_mmap_offset(struct ast_bo *bo) 497312fec14SDave Airlie { 498312fec14SDave Airlie return bo->bo.addr_space_offset; 499312fec14SDave Airlie } 500312fec14SDave Airlie int 501312fec14SDave Airlie ast_dumb_mmap_offset(struct drm_file *file, 502312fec14SDave Airlie struct drm_device *dev, 503312fec14SDave Airlie uint32_t handle, 504312fec14SDave Airlie uint64_t *offset) 505312fec14SDave Airlie { 506312fec14SDave Airlie struct drm_gem_object *obj; 507312fec14SDave Airlie int ret; 508312fec14SDave Airlie struct ast_bo *bo; 509312fec14SDave Airlie 510312fec14SDave Airlie mutex_lock(&dev->struct_mutex); 511312fec14SDave Airlie obj = drm_gem_object_lookup(dev, file, handle); 512312fec14SDave Airlie if (obj == NULL) { 513312fec14SDave Airlie ret = -ENOENT; 514312fec14SDave Airlie goto out_unlock; 515312fec14SDave Airlie } 516312fec14SDave Airlie 517312fec14SDave Airlie bo = gem_to_ast_bo(obj); 518312fec14SDave Airlie *offset = ast_bo_mmap_offset(bo); 519312fec14SDave Airlie 520312fec14SDave Airlie drm_gem_object_unreference(obj); 521312fec14SDave Airlie ret = 0; 522312fec14SDave Airlie out_unlock: 523312fec14SDave Airlie mutex_unlock(&dev->struct_mutex); 524312fec14SDave Airlie return ret; 525312fec14SDave Airlie 526312fec14SDave Airlie } 527312fec14SDave Airlie 528