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 */ 28760285e7SDavid Howells #include <drm/drmP.h> 29312fec14SDave Airlie #include "ast_drv.h" 30312fec14SDave Airlie 31312fec14SDave Airlie 32760285e7SDavid Howells #include <drm/drm_fb_helper.h> 33760285e7SDavid Howells #include <drm/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 66d1b98557SBenjamin Herrenschmidt static int ast_detect_chip(struct drm_device *dev, bool *need_post) 67312fec14SDave Airlie { 68312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 69f1f62f2cSDave Airlie uint32_t data, jreg; 708f372e25SY.C. Chen ast_open_key(ast); 71312fec14SDave Airlie 72312fec14SDave Airlie if (dev->pdev->device == PCI_CHIP_AST1180) { 73312fec14SDave Airlie ast->chip = AST1100; 74312fec14SDave Airlie DRM_INFO("AST 1180 detected\n"); 75312fec14SDave Airlie } else { 761453bf4cSDave Airlie if (dev->pdev->revision >= 0x30) { 771453bf4cSDave Airlie ast->chip = AST2400; 781453bf4cSDave Airlie DRM_INFO("AST 2400 detected\n"); 791453bf4cSDave Airlie } else if (dev->pdev->revision >= 0x20) { 80312fec14SDave Airlie ast->chip = AST2300; 81312fec14SDave Airlie DRM_INFO("AST 2300 detected\n"); 82312fec14SDave Airlie } else if (dev->pdev->revision >= 0x10) { 83312fec14SDave Airlie uint32_t data; 84312fec14SDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 85312fec14SDave Airlie ast_write32(ast, 0xf000, 0x1); 86312fec14SDave Airlie 87312fec14SDave Airlie data = ast_read32(ast, 0x1207c); 88312fec14SDave Airlie switch (data & 0x0300) { 89312fec14SDave Airlie case 0x0200: 90312fec14SDave Airlie ast->chip = AST1100; 91312fec14SDave Airlie DRM_INFO("AST 1100 detected\n"); 92312fec14SDave Airlie break; 93312fec14SDave Airlie case 0x0100: 94312fec14SDave Airlie ast->chip = AST2200; 95312fec14SDave Airlie DRM_INFO("AST 2200 detected\n"); 96312fec14SDave Airlie break; 97312fec14SDave Airlie case 0x0000: 98312fec14SDave Airlie ast->chip = AST2150; 99312fec14SDave Airlie DRM_INFO("AST 2150 detected\n"); 100312fec14SDave Airlie break; 101312fec14SDave Airlie default: 102312fec14SDave Airlie ast->chip = AST2100; 103312fec14SDave Airlie DRM_INFO("AST 2100 detected\n"); 104312fec14SDave Airlie break; 105312fec14SDave Airlie } 106312fec14SDave Airlie ast->vga2_clone = false; 107312fec14SDave Airlie } else { 10883502a5dSY.C. Chen ast->chip = AST2000; 109312fec14SDave Airlie DRM_INFO("AST 2000 detected\n"); 110312fec14SDave Airlie } 111312fec14SDave Airlie } 112f1f62f2cSDave Airlie 113d1b98557SBenjamin Herrenschmidt /* 114d1b98557SBenjamin Herrenschmidt * If VGA isn't enabled, we need to enable now or subsequent 115d1b98557SBenjamin Herrenschmidt * access to the scratch registers will fail. We also inform 116d1b98557SBenjamin Herrenschmidt * our caller that it needs to POST the chip 117d1b98557SBenjamin Herrenschmidt * (Assumption: VGA not enabled -> need to POST) 118d1b98557SBenjamin Herrenschmidt */ 119d1b98557SBenjamin Herrenschmidt if (!ast_is_vga_enabled(dev)) { 120d1b98557SBenjamin Herrenschmidt ast_enable_vga(dev); 121d1b98557SBenjamin Herrenschmidt ast_enable_mmio(dev); 122d1b98557SBenjamin Herrenschmidt DRM_INFO("VGA not enabled on entry, requesting chip POST\n"); 123d1b98557SBenjamin Herrenschmidt *need_post = true; 124d1b98557SBenjamin Herrenschmidt } else 125d1b98557SBenjamin Herrenschmidt *need_post = false; 126d1b98557SBenjamin Herrenschmidt 127d1b98557SBenjamin Herrenschmidt /* Check if we support wide screen */ 128f1f62f2cSDave Airlie switch (ast->chip) { 129f1f62f2cSDave Airlie case AST1180: 130f1f62f2cSDave Airlie ast->support_wide_screen = true; 131f1f62f2cSDave Airlie break; 132f1f62f2cSDave Airlie case AST2000: 133f1f62f2cSDave Airlie ast->support_wide_screen = false; 134f1f62f2cSDave Airlie break; 135f1f62f2cSDave Airlie default: 136f1f62f2cSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); 137f1f62f2cSDave Airlie if (!(jreg & 0x80)) 138f1f62f2cSDave Airlie ast->support_wide_screen = true; 139f1f62f2cSDave Airlie else if (jreg & 0x01) 140f1f62f2cSDave Airlie ast->support_wide_screen = true; 141f1f62f2cSDave Airlie else { 142f1f62f2cSDave Airlie ast->support_wide_screen = false; 143d1b98557SBenjamin Herrenschmidt /* Read SCU7c (silicon revision register) */ 144f1f62f2cSDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 145f1f62f2cSDave Airlie ast_write32(ast, 0xf000, 0x1); 146f1f62f2cSDave Airlie data = ast_read32(ast, 0x1207c); 1471453bf4cSDave Airlie data &= 0x300; 1481453bf4cSDave Airlie if (ast->chip == AST2300 && data == 0x0) /* ast1300 */ 149f1f62f2cSDave Airlie ast->support_wide_screen = true; 1501453bf4cSDave Airlie if (ast->chip == AST2400 && data == 0x100) /* ast1400 */ 1511453bf4cSDave Airlie ast->support_wide_screen = true; 152f1f62f2cSDave Airlie } 153f1f62f2cSDave Airlie break; 154f1f62f2cSDave Airlie } 155f1f62f2cSDave Airlie 156d1b98557SBenjamin Herrenschmidt /* Check 3rd Tx option (digital output afaik) */ 15783c6620bSDave Airlie ast->tx_chip_type = AST_TX_NONE; 158d1b98557SBenjamin Herrenschmidt 159d1b98557SBenjamin Herrenschmidt /* 160d1b98557SBenjamin Herrenschmidt * VGACRA3 Enhanced Color Mode Register, check if DVO is already 161d1b98557SBenjamin Herrenschmidt * enabled, in that case, assume we have a SIL164 TMDS transmitter 16242fb1427SBenjamin Herrenschmidt * 16342fb1427SBenjamin Herrenschmidt * Don't make that assumption if we the chip wasn't enabled and 16442fb1427SBenjamin Herrenschmidt * is at power-on reset, otherwise we'll incorrectly "detect" a 16542fb1427SBenjamin Herrenschmidt * SIL164 when there is none. 166d1b98557SBenjamin Herrenschmidt */ 16742fb1427SBenjamin Herrenschmidt if (!*need_post) { 16883c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff); 16983c6620bSDave Airlie if (jreg & 0x80) 17083c6620bSDave Airlie ast->tx_chip_type = AST_TX_SIL164; 17142fb1427SBenjamin Herrenschmidt } 172d1b98557SBenjamin Herrenschmidt 17383c6620bSDave Airlie if ((ast->chip == AST2300) || (ast->chip == AST2400)) { 174d1b98557SBenjamin Herrenschmidt /* 175d1b98557SBenjamin Herrenschmidt * On AST2300 and 2400, look the configuration set by the SoC in 176d1b98557SBenjamin Herrenschmidt * the SOC scratch register #1 bits 11:8 (interestingly marked 17742fb1427SBenjamin Herrenschmidt * as "reserved" in the spec) 178d1b98557SBenjamin Herrenschmidt */ 17983c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); 18083c6620bSDave Airlie switch (jreg) { 18183c6620bSDave Airlie case 0x04: 18283c6620bSDave Airlie ast->tx_chip_type = AST_TX_SIL164; 18383c6620bSDave Airlie break; 18483c6620bSDave Airlie case 0x08: 18583c6620bSDave Airlie ast->dp501_fw_addr = kzalloc(32*1024, GFP_KERNEL); 18683c6620bSDave Airlie if (ast->dp501_fw_addr) { 18783c6620bSDave Airlie /* backup firmware */ 18883c6620bSDave Airlie if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) { 18983c6620bSDave Airlie kfree(ast->dp501_fw_addr); 19083c6620bSDave Airlie ast->dp501_fw_addr = NULL; 19183c6620bSDave Airlie } 19283c6620bSDave Airlie } 19383c6620bSDave Airlie /* fallthrough */ 19483c6620bSDave Airlie case 0x0c: 19583c6620bSDave Airlie ast->tx_chip_type = AST_TX_DP501; 19683c6620bSDave Airlie } 19783c6620bSDave Airlie } 19883c6620bSDave Airlie 199d1b98557SBenjamin Herrenschmidt /* Print stuff for diagnostic purposes */ 200d1b98557SBenjamin Herrenschmidt switch(ast->tx_chip_type) { 201d1b98557SBenjamin Herrenschmidt case AST_TX_SIL164: 202d1b98557SBenjamin Herrenschmidt DRM_INFO("Using Sil164 TMDS transmitter\n"); 203d1b98557SBenjamin Herrenschmidt break; 204d1b98557SBenjamin Herrenschmidt case AST_TX_DP501: 205d1b98557SBenjamin Herrenschmidt DRM_INFO("Using DP501 DisplayPort transmitter\n"); 206d1b98557SBenjamin Herrenschmidt break; 207d1b98557SBenjamin Herrenschmidt default: 208d1b98557SBenjamin Herrenschmidt DRM_INFO("Analog VGA only\n"); 209d1b98557SBenjamin Herrenschmidt } 210312fec14SDave Airlie return 0; 211312fec14SDave Airlie } 212312fec14SDave Airlie 213312fec14SDave Airlie static int ast_get_dram_info(struct drm_device *dev) 214312fec14SDave Airlie { 215312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 216312fec14SDave Airlie uint32_t data, data2; 217312fec14SDave Airlie uint32_t denum, num, div, ref_pll; 218312fec14SDave Airlie 219312fec14SDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 220312fec14SDave Airlie ast_write32(ast, 0xf000, 0x1); 221312fec14SDave Airlie 222312fec14SDave Airlie 223312fec14SDave Airlie ast_write32(ast, 0x10000, 0xfc600309); 224312fec14SDave Airlie 225312fec14SDave Airlie do { 226312fec14SDave Airlie ; 227312fec14SDave Airlie } while (ast_read32(ast, 0x10000) != 0x01); 228312fec14SDave Airlie data = ast_read32(ast, 0x10004); 229312fec14SDave Airlie 230312fec14SDave Airlie if (data & 0x400) 231312fec14SDave Airlie ast->dram_bus_width = 16; 232312fec14SDave Airlie else 233312fec14SDave Airlie ast->dram_bus_width = 32; 234312fec14SDave Airlie 2351453bf4cSDave Airlie if (ast->chip == AST2300 || ast->chip == AST2400) { 236312fec14SDave Airlie switch (data & 0x03) { 237312fec14SDave Airlie case 0: 238312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 239312fec14SDave Airlie break; 240312fec14SDave Airlie default: 241312fec14SDave Airlie case 1: 242312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 243312fec14SDave Airlie break; 244312fec14SDave Airlie case 2: 245312fec14SDave Airlie ast->dram_type = AST_DRAM_2Gx16; 246312fec14SDave Airlie break; 247312fec14SDave Airlie case 3: 248312fec14SDave Airlie ast->dram_type = AST_DRAM_4Gx16; 249312fec14SDave Airlie break; 250312fec14SDave Airlie } 251312fec14SDave Airlie } else { 252312fec14SDave Airlie switch (data & 0x0c) { 253312fec14SDave Airlie case 0: 254312fec14SDave Airlie case 4: 255312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 256312fec14SDave Airlie break; 257312fec14SDave Airlie case 8: 258312fec14SDave Airlie if (data & 0x40) 259312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 260312fec14SDave Airlie else 261312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx32; 262312fec14SDave Airlie break; 263312fec14SDave Airlie case 0xc: 264312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx32; 265312fec14SDave Airlie break; 266312fec14SDave Airlie } 267312fec14SDave Airlie } 268312fec14SDave Airlie 269312fec14SDave Airlie data = ast_read32(ast, 0x10120); 270312fec14SDave Airlie data2 = ast_read32(ast, 0x10170); 271312fec14SDave Airlie if (data2 & 0x2000) 272312fec14SDave Airlie ref_pll = 14318; 273312fec14SDave Airlie else 274312fec14SDave Airlie ref_pll = 12000; 275312fec14SDave Airlie 276312fec14SDave Airlie denum = data & 0x1f; 277312fec14SDave Airlie num = (data & 0x3fe0) >> 5; 278312fec14SDave Airlie data = (data & 0xc000) >> 14; 279312fec14SDave Airlie switch (data) { 280312fec14SDave Airlie case 3: 281312fec14SDave Airlie div = 0x4; 282312fec14SDave Airlie break; 283312fec14SDave Airlie case 2: 284312fec14SDave Airlie case 1: 285312fec14SDave Airlie div = 0x2; 286312fec14SDave Airlie break; 287312fec14SDave Airlie default: 288312fec14SDave Airlie div = 0x1; 289312fec14SDave Airlie break; 290312fec14SDave Airlie } 291312fec14SDave Airlie ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000); 292312fec14SDave Airlie return 0; 293312fec14SDave Airlie } 294312fec14SDave Airlie 295312fec14SDave Airlie static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb) 296312fec14SDave Airlie { 297312fec14SDave Airlie struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb); 298312fec14SDave Airlie if (ast_fb->obj) 299312fec14SDave Airlie drm_gem_object_unreference_unlocked(ast_fb->obj); 300312fec14SDave Airlie 301312fec14SDave Airlie drm_framebuffer_cleanup(fb); 302312fec14SDave Airlie kfree(fb); 303312fec14SDave Airlie } 304312fec14SDave Airlie 305312fec14SDave Airlie static const struct drm_framebuffer_funcs ast_fb_funcs = { 306312fec14SDave Airlie .destroy = ast_user_framebuffer_destroy, 307312fec14SDave Airlie }; 308312fec14SDave Airlie 309312fec14SDave Airlie 310312fec14SDave Airlie int ast_framebuffer_init(struct drm_device *dev, 311312fec14SDave Airlie struct ast_framebuffer *ast_fb, 312312fec14SDave Airlie struct drm_mode_fb_cmd2 *mode_cmd, 313312fec14SDave Airlie struct drm_gem_object *obj) 314312fec14SDave Airlie { 315312fec14SDave Airlie int ret; 316312fec14SDave Airlie 317c7d73f6aSDaniel Vetter drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd); 318c7d73f6aSDaniel Vetter ast_fb->obj = obj; 319312fec14SDave Airlie ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs); 320312fec14SDave Airlie if (ret) { 321312fec14SDave Airlie DRM_ERROR("framebuffer init failed %d\n", ret); 322312fec14SDave Airlie return ret; 323312fec14SDave Airlie } 324312fec14SDave Airlie return 0; 325312fec14SDave Airlie } 326312fec14SDave Airlie 327312fec14SDave Airlie static struct drm_framebuffer * 328312fec14SDave Airlie ast_user_framebuffer_create(struct drm_device *dev, 329312fec14SDave Airlie struct drm_file *filp, 330312fec14SDave Airlie struct drm_mode_fb_cmd2 *mode_cmd) 331312fec14SDave Airlie { 332312fec14SDave Airlie struct drm_gem_object *obj; 333312fec14SDave Airlie struct ast_framebuffer *ast_fb; 334312fec14SDave Airlie int ret; 335312fec14SDave Airlie 336312fec14SDave Airlie obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]); 337312fec14SDave Airlie if (obj == NULL) 338312fec14SDave Airlie return ERR_PTR(-ENOENT); 339312fec14SDave Airlie 340312fec14SDave Airlie ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL); 341312fec14SDave Airlie if (!ast_fb) { 342312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 343312fec14SDave Airlie return ERR_PTR(-ENOMEM); 344312fec14SDave Airlie } 345312fec14SDave Airlie 346312fec14SDave Airlie ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj); 347312fec14SDave Airlie if (ret) { 348312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 349312fec14SDave Airlie kfree(ast_fb); 350312fec14SDave Airlie return ERR_PTR(ret); 351312fec14SDave Airlie } 352312fec14SDave Airlie return &ast_fb->base; 353312fec14SDave Airlie } 354312fec14SDave Airlie 355312fec14SDave Airlie static const struct drm_mode_config_funcs ast_mode_funcs = { 356312fec14SDave Airlie .fb_create = ast_user_framebuffer_create, 357312fec14SDave Airlie }; 358312fec14SDave Airlie 359312fec14SDave Airlie static u32 ast_get_vram_info(struct drm_device *dev) 360312fec14SDave Airlie { 361312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 362312fec14SDave Airlie u8 jreg; 36383c6620bSDave Airlie u32 vram_size; 364312fec14SDave Airlie ast_open_key(ast); 365312fec14SDave Airlie 36683c6620bSDave Airlie vram_size = AST_VIDMEM_DEFAULT_SIZE; 367312fec14SDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff); 368312fec14SDave Airlie switch (jreg & 3) { 36983c6620bSDave Airlie case 0: vram_size = AST_VIDMEM_SIZE_8M; break; 37083c6620bSDave Airlie case 1: vram_size = AST_VIDMEM_SIZE_16M; break; 37183c6620bSDave Airlie case 2: vram_size = AST_VIDMEM_SIZE_32M; break; 37283c6620bSDave Airlie case 3: vram_size = AST_VIDMEM_SIZE_64M; break; 373312fec14SDave Airlie } 37483c6620bSDave Airlie 37583c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff); 37683c6620bSDave Airlie switch (jreg & 0x03) { 37783c6620bSDave Airlie case 1: 37883c6620bSDave Airlie vram_size -= 0x100000; 37983c6620bSDave Airlie break; 38083c6620bSDave Airlie case 2: 38183c6620bSDave Airlie vram_size -= 0x200000; 38283c6620bSDave Airlie break; 38383c6620bSDave Airlie case 3: 38483c6620bSDave Airlie vram_size -= 0x400000; 38583c6620bSDave Airlie break; 38683c6620bSDave Airlie } 38783c6620bSDave Airlie 38883c6620bSDave Airlie return vram_size; 389312fec14SDave Airlie } 390312fec14SDave Airlie 391312fec14SDave Airlie int ast_driver_load(struct drm_device *dev, unsigned long flags) 392312fec14SDave Airlie { 393312fec14SDave Airlie struct ast_private *ast; 394d1b98557SBenjamin Herrenschmidt bool need_post; 395312fec14SDave Airlie int ret = 0; 396312fec14SDave Airlie 397312fec14SDave Airlie ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL); 398312fec14SDave Airlie if (!ast) 399312fec14SDave Airlie return -ENOMEM; 400312fec14SDave Airlie 401312fec14SDave Airlie dev->dev_private = ast; 402312fec14SDave Airlie ast->dev = dev; 403312fec14SDave Airlie 404312fec14SDave Airlie ast->regs = pci_iomap(dev->pdev, 1, 0); 405312fec14SDave Airlie if (!ast->regs) { 406312fec14SDave Airlie ret = -EIO; 407312fec14SDave Airlie goto out_free; 408312fec14SDave Airlie } 4090dd68309SBenjamin Herrenschmidt 4100dd68309SBenjamin Herrenschmidt /* 4110dd68309SBenjamin Herrenschmidt * If we don't have IO space at all, use MMIO now and 4120dd68309SBenjamin Herrenschmidt * assume the chip has MMIO enabled by default (rev 0x20 4130dd68309SBenjamin Herrenschmidt * and higher). 4140dd68309SBenjamin Herrenschmidt */ 4150dd68309SBenjamin Herrenschmidt if (!(pci_resource_flags(dev->pdev, 2) & IORESOURCE_IO)) { 4160dd68309SBenjamin Herrenschmidt DRM_INFO("platform has no IO space, trying MMIO\n"); 4170dd68309SBenjamin Herrenschmidt ast->ioregs = ast->regs + AST_IO_MM_OFFSET; 4180dd68309SBenjamin Herrenschmidt } 4190dd68309SBenjamin Herrenschmidt 4200dd68309SBenjamin Herrenschmidt /* "map" IO regs if the above hasn't done so already */ 4210dd68309SBenjamin Herrenschmidt if (!ast->ioregs) { 422312fec14SDave Airlie ast->ioregs = pci_iomap(dev->pdev, 2, 0); 423312fec14SDave Airlie if (!ast->ioregs) { 424312fec14SDave Airlie ret = -EIO; 425312fec14SDave Airlie goto out_free; 426312fec14SDave Airlie } 4270dd68309SBenjamin Herrenschmidt } 428312fec14SDave Airlie 429d1b98557SBenjamin Herrenschmidt ast_detect_chip(dev, &need_post); 430312fec14SDave Airlie 431312fec14SDave Airlie if (ast->chip != AST1180) { 432312fec14SDave Airlie ast_get_dram_info(dev); 433312fec14SDave Airlie ast->vram_size = ast_get_vram_info(dev); 434312fec14SDave Airlie DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size); 435312fec14SDave Airlie } 436312fec14SDave Airlie 437d1b98557SBenjamin Herrenschmidt if (need_post) 438d1b98557SBenjamin Herrenschmidt ast_post_gpu(dev); 439d1b98557SBenjamin Herrenschmidt 440312fec14SDave Airlie ret = ast_mm_init(ast); 441312fec14SDave Airlie if (ret) 442312fec14SDave Airlie goto out_free; 443312fec14SDave Airlie 444312fec14SDave Airlie drm_mode_config_init(dev); 445312fec14SDave Airlie 446312fec14SDave Airlie dev->mode_config.funcs = (void *)&ast_mode_funcs; 447312fec14SDave Airlie dev->mode_config.min_width = 0; 448312fec14SDave Airlie dev->mode_config.min_height = 0; 449312fec14SDave Airlie dev->mode_config.preferred_depth = 24; 450312fec14SDave Airlie dev->mode_config.prefer_shadow = 1; 45128fb4cb7SEgbert Eich dev->mode_config.fb_base = pci_resource_start(ast->dev->pdev, 0); 452312fec14SDave Airlie 453312fec14SDave Airlie if (ast->chip == AST2100 || 454312fec14SDave Airlie ast->chip == AST2200 || 455312fec14SDave Airlie ast->chip == AST2300 || 4561453bf4cSDave Airlie ast->chip == AST2400 || 457312fec14SDave Airlie ast->chip == AST1180) { 458312fec14SDave Airlie dev->mode_config.max_width = 1920; 459312fec14SDave Airlie dev->mode_config.max_height = 2048; 460312fec14SDave Airlie } else { 461312fec14SDave Airlie dev->mode_config.max_width = 1600; 462312fec14SDave Airlie dev->mode_config.max_height = 1200; 463312fec14SDave Airlie } 464312fec14SDave Airlie 465312fec14SDave Airlie ret = ast_mode_init(dev); 466312fec14SDave Airlie if (ret) 467312fec14SDave Airlie goto out_free; 468312fec14SDave Airlie 469312fec14SDave Airlie ret = ast_fbdev_init(dev); 470312fec14SDave Airlie if (ret) 471312fec14SDave Airlie goto out_free; 472312fec14SDave Airlie 473312fec14SDave Airlie return 0; 474312fec14SDave Airlie out_free: 475312fec14SDave Airlie kfree(ast); 476312fec14SDave Airlie dev->dev_private = NULL; 477312fec14SDave Airlie return ret; 478312fec14SDave Airlie } 479312fec14SDave Airlie 480312fec14SDave Airlie int ast_driver_unload(struct drm_device *dev) 481312fec14SDave Airlie { 482312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 483312fec14SDave Airlie 48483c6620bSDave Airlie kfree(ast->dp501_fw_addr); 485312fec14SDave Airlie ast_mode_fini(dev); 486312fec14SDave Airlie ast_fbdev_fini(dev); 487312fec14SDave Airlie drm_mode_config_cleanup(dev); 488312fec14SDave Airlie 489312fec14SDave Airlie ast_mm_fini(ast); 490312fec14SDave Airlie pci_iounmap(dev->pdev, ast->ioregs); 491312fec14SDave Airlie pci_iounmap(dev->pdev, ast->regs); 492312fec14SDave Airlie kfree(ast); 493312fec14SDave Airlie return 0; 494312fec14SDave Airlie } 495312fec14SDave Airlie 496312fec14SDave Airlie int ast_gem_create(struct drm_device *dev, 497312fec14SDave Airlie u32 size, bool iskernel, 498312fec14SDave Airlie struct drm_gem_object **obj) 499312fec14SDave Airlie { 500312fec14SDave Airlie struct ast_bo *astbo; 501312fec14SDave Airlie int ret; 502312fec14SDave Airlie 503312fec14SDave Airlie *obj = NULL; 504312fec14SDave Airlie 505312fec14SDave Airlie size = roundup(size, PAGE_SIZE); 506312fec14SDave Airlie if (size == 0) 507312fec14SDave Airlie return -EINVAL; 508312fec14SDave Airlie 509312fec14SDave Airlie ret = ast_bo_create(dev, size, 0, 0, &astbo); 510312fec14SDave Airlie if (ret) { 511312fec14SDave Airlie if (ret != -ERESTARTSYS) 512312fec14SDave Airlie DRM_ERROR("failed to allocate GEM object\n"); 513312fec14SDave Airlie return ret; 514312fec14SDave Airlie } 515312fec14SDave Airlie *obj = &astbo->gem; 516312fec14SDave Airlie return 0; 517312fec14SDave Airlie } 518312fec14SDave Airlie 519312fec14SDave Airlie int ast_dumb_create(struct drm_file *file, 520312fec14SDave Airlie struct drm_device *dev, 521312fec14SDave Airlie struct drm_mode_create_dumb *args) 522312fec14SDave Airlie { 523312fec14SDave Airlie int ret; 524312fec14SDave Airlie struct drm_gem_object *gobj; 525312fec14SDave Airlie u32 handle; 526312fec14SDave Airlie 527312fec14SDave Airlie args->pitch = args->width * ((args->bpp + 7) / 8); 528312fec14SDave Airlie args->size = args->pitch * args->height; 529312fec14SDave Airlie 530312fec14SDave Airlie ret = ast_gem_create(dev, args->size, false, 531312fec14SDave Airlie &gobj); 532312fec14SDave Airlie if (ret) 533312fec14SDave Airlie return ret; 534312fec14SDave Airlie 535312fec14SDave Airlie ret = drm_gem_handle_create(file, gobj, &handle); 536312fec14SDave Airlie drm_gem_object_unreference_unlocked(gobj); 537312fec14SDave Airlie if (ret) 538312fec14SDave Airlie return ret; 539312fec14SDave Airlie 540312fec14SDave Airlie args->handle = handle; 541312fec14SDave Airlie return 0; 542312fec14SDave Airlie } 543312fec14SDave Airlie 544f6109803SRashika static void ast_bo_unref(struct ast_bo **bo) 545312fec14SDave Airlie { 546312fec14SDave Airlie struct ttm_buffer_object *tbo; 547312fec14SDave Airlie 548312fec14SDave Airlie if ((*bo) == NULL) 549312fec14SDave Airlie return; 550312fec14SDave Airlie 551312fec14SDave Airlie tbo = &((*bo)->bo); 552312fec14SDave Airlie ttm_bo_unref(&tbo); 553312fec14SDave Airlie *bo = NULL; 554312fec14SDave Airlie } 555eb649a61SDaniel Vetter 556312fec14SDave Airlie void ast_gem_free_object(struct drm_gem_object *obj) 557312fec14SDave Airlie { 558312fec14SDave Airlie struct ast_bo *ast_bo = gem_to_ast_bo(obj); 559312fec14SDave Airlie 560312fec14SDave Airlie ast_bo_unref(&ast_bo); 561312fec14SDave Airlie } 562312fec14SDave Airlie 563312fec14SDave Airlie 564312fec14SDave Airlie static inline u64 ast_bo_mmap_offset(struct ast_bo *bo) 565312fec14SDave Airlie { 56672525b3fSDavid Herrmann return drm_vma_node_offset_addr(&bo->bo.vma_node); 567312fec14SDave Airlie } 568312fec14SDave Airlie int 569312fec14SDave Airlie ast_dumb_mmap_offset(struct drm_file *file, 570312fec14SDave Airlie struct drm_device *dev, 571312fec14SDave Airlie uint32_t handle, 572312fec14SDave Airlie uint64_t *offset) 573312fec14SDave Airlie { 574312fec14SDave Airlie struct drm_gem_object *obj; 575312fec14SDave Airlie struct ast_bo *bo; 576312fec14SDave Airlie 577312fec14SDave Airlie obj = drm_gem_object_lookup(dev, file, handle); 578a66b2ea2SDaniel Vetter if (obj == NULL) 579a66b2ea2SDaniel Vetter return -ENOENT; 580312fec14SDave Airlie 581312fec14SDave Airlie bo = gem_to_ast_bo(obj); 582312fec14SDave Airlie *offset = ast_bo_mmap_offset(bo); 583312fec14SDave Airlie 584a66b2ea2SDaniel Vetter drm_gem_object_unreference_unlocked(obj); 585a66b2ea2SDaniel Vetter 586a66b2ea2SDaniel Vetter return 0; 587312fec14SDave Airlie 588312fec14SDave Airlie } 589312fec14SDave Airlie 590