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; 70312fec14SDave Airlie 71312fec14SDave Airlie if (dev->pdev->device == PCI_CHIP_AST1180) { 72312fec14SDave Airlie ast->chip = AST1100; 73312fec14SDave Airlie DRM_INFO("AST 1180 detected\n"); 74312fec14SDave Airlie } else { 751453bf4cSDave Airlie if (dev->pdev->revision >= 0x30) { 761453bf4cSDave Airlie ast->chip = AST2400; 771453bf4cSDave Airlie DRM_INFO("AST 2400 detected\n"); 781453bf4cSDave Airlie } else if (dev->pdev->revision >= 0x20) { 79312fec14SDave Airlie ast->chip = AST2300; 80312fec14SDave Airlie DRM_INFO("AST 2300 detected\n"); 81312fec14SDave Airlie } else if (dev->pdev->revision >= 0x10) { 82312fec14SDave Airlie uint32_t data; 83312fec14SDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 84312fec14SDave Airlie ast_write32(ast, 0xf000, 0x1); 85312fec14SDave Airlie 86312fec14SDave Airlie data = ast_read32(ast, 0x1207c); 87312fec14SDave Airlie switch (data & 0x0300) { 88312fec14SDave Airlie case 0x0200: 89312fec14SDave Airlie ast->chip = AST1100; 90312fec14SDave Airlie DRM_INFO("AST 1100 detected\n"); 91312fec14SDave Airlie break; 92312fec14SDave Airlie case 0x0100: 93312fec14SDave Airlie ast->chip = AST2200; 94312fec14SDave Airlie DRM_INFO("AST 2200 detected\n"); 95312fec14SDave Airlie break; 96312fec14SDave Airlie case 0x0000: 97312fec14SDave Airlie ast->chip = AST2150; 98312fec14SDave Airlie DRM_INFO("AST 2150 detected\n"); 99312fec14SDave Airlie break; 100312fec14SDave Airlie default: 101312fec14SDave Airlie ast->chip = AST2100; 102312fec14SDave Airlie DRM_INFO("AST 2100 detected\n"); 103312fec14SDave Airlie break; 104312fec14SDave Airlie } 105312fec14SDave Airlie ast->vga2_clone = false; 106312fec14SDave Airlie } else { 107312fec14SDave Airlie ast->chip = 2000; 108312fec14SDave Airlie DRM_INFO("AST 2000 detected\n"); 109312fec14SDave Airlie } 110312fec14SDave Airlie } 111f1f62f2cSDave Airlie 112d1b98557SBenjamin Herrenschmidt /* 113d1b98557SBenjamin Herrenschmidt * If VGA isn't enabled, we need to enable now or subsequent 114d1b98557SBenjamin Herrenschmidt * access to the scratch registers will fail. We also inform 115d1b98557SBenjamin Herrenschmidt * our caller that it needs to POST the chip 116d1b98557SBenjamin Herrenschmidt * (Assumption: VGA not enabled -> need to POST) 117d1b98557SBenjamin Herrenschmidt */ 118d1b98557SBenjamin Herrenschmidt if (!ast_is_vga_enabled(dev)) { 119d1b98557SBenjamin Herrenschmidt ast_enable_vga(dev); 120d1b98557SBenjamin Herrenschmidt ast_enable_mmio(dev); 121d1b98557SBenjamin Herrenschmidt DRM_INFO("VGA not enabled on entry, requesting chip POST\n"); 122d1b98557SBenjamin Herrenschmidt *need_post = true; 123d1b98557SBenjamin Herrenschmidt } else 124d1b98557SBenjamin Herrenschmidt *need_post = false; 125d1b98557SBenjamin Herrenschmidt 126d1b98557SBenjamin Herrenschmidt /* Check if we support wide screen */ 127f1f62f2cSDave Airlie switch (ast->chip) { 128f1f62f2cSDave Airlie case AST1180: 129f1f62f2cSDave Airlie ast->support_wide_screen = true; 130f1f62f2cSDave Airlie break; 131f1f62f2cSDave Airlie case AST2000: 132f1f62f2cSDave Airlie ast->support_wide_screen = false; 133f1f62f2cSDave Airlie break; 134f1f62f2cSDave Airlie default: 135f1f62f2cSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); 136f1f62f2cSDave Airlie if (!(jreg & 0x80)) 137f1f62f2cSDave Airlie ast->support_wide_screen = true; 138f1f62f2cSDave Airlie else if (jreg & 0x01) 139f1f62f2cSDave Airlie ast->support_wide_screen = true; 140f1f62f2cSDave Airlie else { 141f1f62f2cSDave Airlie ast->support_wide_screen = false; 142d1b98557SBenjamin Herrenschmidt /* Read SCU7c (silicon revision register) */ 143f1f62f2cSDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 144f1f62f2cSDave Airlie ast_write32(ast, 0xf000, 0x1); 145f1f62f2cSDave Airlie data = ast_read32(ast, 0x1207c); 1461453bf4cSDave Airlie data &= 0x300; 1471453bf4cSDave Airlie if (ast->chip == AST2300 && data == 0x0) /* ast1300 */ 148f1f62f2cSDave Airlie ast->support_wide_screen = true; 1491453bf4cSDave Airlie if (ast->chip == AST2400 && data == 0x100) /* ast1400 */ 1501453bf4cSDave Airlie ast->support_wide_screen = true; 151f1f62f2cSDave Airlie } 152f1f62f2cSDave Airlie break; 153f1f62f2cSDave Airlie } 154f1f62f2cSDave Airlie 155d1b98557SBenjamin Herrenschmidt /* Check 3rd Tx option (digital output afaik) */ 15683c6620bSDave Airlie ast->tx_chip_type = AST_TX_NONE; 157d1b98557SBenjamin Herrenschmidt 158d1b98557SBenjamin Herrenschmidt /* 159d1b98557SBenjamin Herrenschmidt * VGACRA3 Enhanced Color Mode Register, check if DVO is already 160d1b98557SBenjamin Herrenschmidt * enabled, in that case, assume we have a SIL164 TMDS transmitter 161d1b98557SBenjamin Herrenschmidt */ 16283c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff); 16383c6620bSDave Airlie if (jreg & 0x80) 16483c6620bSDave Airlie ast->tx_chip_type = AST_TX_SIL164; 165d1b98557SBenjamin Herrenschmidt 16683c6620bSDave Airlie if ((ast->chip == AST2300) || (ast->chip == AST2400)) { 167d1b98557SBenjamin Herrenschmidt /* 168d1b98557SBenjamin Herrenschmidt * On AST2300 and 2400, look the configuration set by the SoC in 169d1b98557SBenjamin Herrenschmidt * the SOC scratch register #1 bits 11:8 (interestingly marked 170d1b98557SBenjamin Herrenschmidt * as "reserved" in the spec 171d1b98557SBenjamin Herrenschmidt */ 17283c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); 17383c6620bSDave Airlie switch (jreg) { 17483c6620bSDave Airlie case 0x04: 17583c6620bSDave Airlie ast->tx_chip_type = AST_TX_SIL164; 17683c6620bSDave Airlie break; 17783c6620bSDave Airlie case 0x08: 17883c6620bSDave Airlie ast->dp501_fw_addr = kzalloc(32*1024, GFP_KERNEL); 17983c6620bSDave Airlie if (ast->dp501_fw_addr) { 18083c6620bSDave Airlie /* backup firmware */ 18183c6620bSDave Airlie if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) { 18283c6620bSDave Airlie kfree(ast->dp501_fw_addr); 18383c6620bSDave Airlie ast->dp501_fw_addr = NULL; 18483c6620bSDave Airlie } 18583c6620bSDave Airlie } 18683c6620bSDave Airlie /* fallthrough */ 18783c6620bSDave Airlie case 0x0c: 18883c6620bSDave Airlie ast->tx_chip_type = AST_TX_DP501; 18983c6620bSDave Airlie } 19083c6620bSDave Airlie } 19183c6620bSDave Airlie 192d1b98557SBenjamin Herrenschmidt /* Print stuff for diagnostic purposes */ 193d1b98557SBenjamin Herrenschmidt switch(ast->tx_chip_type) { 194d1b98557SBenjamin Herrenschmidt case AST_TX_SIL164: 195d1b98557SBenjamin Herrenschmidt DRM_INFO("Using Sil164 TMDS transmitter\n"); 196d1b98557SBenjamin Herrenschmidt break; 197d1b98557SBenjamin Herrenschmidt case AST_TX_DP501: 198d1b98557SBenjamin Herrenschmidt DRM_INFO("Using DP501 DisplayPort transmitter\n"); 199d1b98557SBenjamin Herrenschmidt break; 200d1b98557SBenjamin Herrenschmidt default: 201d1b98557SBenjamin Herrenschmidt DRM_INFO("Analog VGA only\n"); 202d1b98557SBenjamin Herrenschmidt } 203312fec14SDave Airlie return 0; 204312fec14SDave Airlie } 205312fec14SDave Airlie 206312fec14SDave Airlie static int ast_get_dram_info(struct drm_device *dev) 207312fec14SDave Airlie { 208312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 209312fec14SDave Airlie uint32_t data, data2; 210312fec14SDave Airlie uint32_t denum, num, div, ref_pll; 211312fec14SDave Airlie 212312fec14SDave Airlie ast_write32(ast, 0xf004, 0x1e6e0000); 213312fec14SDave Airlie ast_write32(ast, 0xf000, 0x1); 214312fec14SDave Airlie 215312fec14SDave Airlie 216312fec14SDave Airlie ast_write32(ast, 0x10000, 0xfc600309); 217312fec14SDave Airlie 218312fec14SDave Airlie do { 219312fec14SDave Airlie ; 220312fec14SDave Airlie } while (ast_read32(ast, 0x10000) != 0x01); 221312fec14SDave Airlie data = ast_read32(ast, 0x10004); 222312fec14SDave Airlie 223312fec14SDave Airlie if (data & 0x400) 224312fec14SDave Airlie ast->dram_bus_width = 16; 225312fec14SDave Airlie else 226312fec14SDave Airlie ast->dram_bus_width = 32; 227312fec14SDave Airlie 2281453bf4cSDave Airlie if (ast->chip == AST2300 || ast->chip == AST2400) { 229312fec14SDave Airlie switch (data & 0x03) { 230312fec14SDave Airlie case 0: 231312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 232312fec14SDave Airlie break; 233312fec14SDave Airlie default: 234312fec14SDave Airlie case 1: 235312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 236312fec14SDave Airlie break; 237312fec14SDave Airlie case 2: 238312fec14SDave Airlie ast->dram_type = AST_DRAM_2Gx16; 239312fec14SDave Airlie break; 240312fec14SDave Airlie case 3: 241312fec14SDave Airlie ast->dram_type = AST_DRAM_4Gx16; 242312fec14SDave Airlie break; 243312fec14SDave Airlie } 244312fec14SDave Airlie } else { 245312fec14SDave Airlie switch (data & 0x0c) { 246312fec14SDave Airlie case 0: 247312fec14SDave Airlie case 4: 248312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 249312fec14SDave Airlie break; 250312fec14SDave Airlie case 8: 251312fec14SDave Airlie if (data & 0x40) 252312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 253312fec14SDave Airlie else 254312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx32; 255312fec14SDave Airlie break; 256312fec14SDave Airlie case 0xc: 257312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx32; 258312fec14SDave Airlie break; 259312fec14SDave Airlie } 260312fec14SDave Airlie } 261312fec14SDave Airlie 262312fec14SDave Airlie data = ast_read32(ast, 0x10120); 263312fec14SDave Airlie data2 = ast_read32(ast, 0x10170); 264312fec14SDave Airlie if (data2 & 0x2000) 265312fec14SDave Airlie ref_pll = 14318; 266312fec14SDave Airlie else 267312fec14SDave Airlie ref_pll = 12000; 268312fec14SDave Airlie 269312fec14SDave Airlie denum = data & 0x1f; 270312fec14SDave Airlie num = (data & 0x3fe0) >> 5; 271312fec14SDave Airlie data = (data & 0xc000) >> 14; 272312fec14SDave Airlie switch (data) { 273312fec14SDave Airlie case 3: 274312fec14SDave Airlie div = 0x4; 275312fec14SDave Airlie break; 276312fec14SDave Airlie case 2: 277312fec14SDave Airlie case 1: 278312fec14SDave Airlie div = 0x2; 279312fec14SDave Airlie break; 280312fec14SDave Airlie default: 281312fec14SDave Airlie div = 0x1; 282312fec14SDave Airlie break; 283312fec14SDave Airlie } 284312fec14SDave Airlie ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000); 285312fec14SDave Airlie return 0; 286312fec14SDave Airlie } 287312fec14SDave Airlie 288312fec14SDave Airlie static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb) 289312fec14SDave Airlie { 290312fec14SDave Airlie struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb); 291312fec14SDave Airlie if (ast_fb->obj) 292312fec14SDave Airlie drm_gem_object_unreference_unlocked(ast_fb->obj); 293312fec14SDave Airlie 294312fec14SDave Airlie drm_framebuffer_cleanup(fb); 295312fec14SDave Airlie kfree(fb); 296312fec14SDave Airlie } 297312fec14SDave Airlie 298312fec14SDave Airlie static const struct drm_framebuffer_funcs ast_fb_funcs = { 299312fec14SDave Airlie .destroy = ast_user_framebuffer_destroy, 300312fec14SDave Airlie }; 301312fec14SDave Airlie 302312fec14SDave Airlie 303312fec14SDave Airlie int ast_framebuffer_init(struct drm_device *dev, 304312fec14SDave Airlie struct ast_framebuffer *ast_fb, 305312fec14SDave Airlie struct drm_mode_fb_cmd2 *mode_cmd, 306312fec14SDave Airlie struct drm_gem_object *obj) 307312fec14SDave Airlie { 308312fec14SDave Airlie int ret; 309312fec14SDave Airlie 310c7d73f6aSDaniel Vetter drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd); 311c7d73f6aSDaniel Vetter ast_fb->obj = obj; 312312fec14SDave Airlie ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs); 313312fec14SDave Airlie if (ret) { 314312fec14SDave Airlie DRM_ERROR("framebuffer init failed %d\n", ret); 315312fec14SDave Airlie return ret; 316312fec14SDave Airlie } 317312fec14SDave Airlie return 0; 318312fec14SDave Airlie } 319312fec14SDave Airlie 320312fec14SDave Airlie static struct drm_framebuffer * 321312fec14SDave Airlie ast_user_framebuffer_create(struct drm_device *dev, 322312fec14SDave Airlie struct drm_file *filp, 323312fec14SDave Airlie struct drm_mode_fb_cmd2 *mode_cmd) 324312fec14SDave Airlie { 325312fec14SDave Airlie struct drm_gem_object *obj; 326312fec14SDave Airlie struct ast_framebuffer *ast_fb; 327312fec14SDave Airlie int ret; 328312fec14SDave Airlie 329312fec14SDave Airlie obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]); 330312fec14SDave Airlie if (obj == NULL) 331312fec14SDave Airlie return ERR_PTR(-ENOENT); 332312fec14SDave Airlie 333312fec14SDave Airlie ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL); 334312fec14SDave Airlie if (!ast_fb) { 335312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 336312fec14SDave Airlie return ERR_PTR(-ENOMEM); 337312fec14SDave Airlie } 338312fec14SDave Airlie 339312fec14SDave Airlie ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj); 340312fec14SDave Airlie if (ret) { 341312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 342312fec14SDave Airlie kfree(ast_fb); 343312fec14SDave Airlie return ERR_PTR(ret); 344312fec14SDave Airlie } 345312fec14SDave Airlie return &ast_fb->base; 346312fec14SDave Airlie } 347312fec14SDave Airlie 348312fec14SDave Airlie static const struct drm_mode_config_funcs ast_mode_funcs = { 349312fec14SDave Airlie .fb_create = ast_user_framebuffer_create, 350312fec14SDave Airlie }; 351312fec14SDave Airlie 352312fec14SDave Airlie static u32 ast_get_vram_info(struct drm_device *dev) 353312fec14SDave Airlie { 354312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 355312fec14SDave Airlie u8 jreg; 35683c6620bSDave Airlie u32 vram_size; 357312fec14SDave Airlie ast_open_key(ast); 358312fec14SDave Airlie 35983c6620bSDave Airlie vram_size = AST_VIDMEM_DEFAULT_SIZE; 360312fec14SDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff); 361312fec14SDave Airlie switch (jreg & 3) { 36283c6620bSDave Airlie case 0: vram_size = AST_VIDMEM_SIZE_8M; break; 36383c6620bSDave Airlie case 1: vram_size = AST_VIDMEM_SIZE_16M; break; 36483c6620bSDave Airlie case 2: vram_size = AST_VIDMEM_SIZE_32M; break; 36583c6620bSDave Airlie case 3: vram_size = AST_VIDMEM_SIZE_64M; break; 366312fec14SDave Airlie } 36783c6620bSDave Airlie 36883c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff); 36983c6620bSDave Airlie switch (jreg & 0x03) { 37083c6620bSDave Airlie case 1: 37183c6620bSDave Airlie vram_size -= 0x100000; 37283c6620bSDave Airlie break; 37383c6620bSDave Airlie case 2: 37483c6620bSDave Airlie vram_size -= 0x200000; 37583c6620bSDave Airlie break; 37683c6620bSDave Airlie case 3: 37783c6620bSDave Airlie vram_size -= 0x400000; 37883c6620bSDave Airlie break; 37983c6620bSDave Airlie } 38083c6620bSDave Airlie 38183c6620bSDave Airlie return vram_size; 382312fec14SDave Airlie } 383312fec14SDave Airlie 384312fec14SDave Airlie int ast_driver_load(struct drm_device *dev, unsigned long flags) 385312fec14SDave Airlie { 386312fec14SDave Airlie struct ast_private *ast; 387d1b98557SBenjamin Herrenschmidt bool need_post; 388312fec14SDave Airlie int ret = 0; 389312fec14SDave Airlie 390312fec14SDave Airlie ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL); 391312fec14SDave Airlie if (!ast) 392312fec14SDave Airlie return -ENOMEM; 393312fec14SDave Airlie 394312fec14SDave Airlie dev->dev_private = ast; 395312fec14SDave Airlie ast->dev = dev; 396312fec14SDave Airlie 397312fec14SDave Airlie ast->regs = pci_iomap(dev->pdev, 1, 0); 398312fec14SDave Airlie if (!ast->regs) { 399312fec14SDave Airlie ret = -EIO; 400312fec14SDave Airlie goto out_free; 401312fec14SDave Airlie } 4020dd68309SBenjamin Herrenschmidt 4030dd68309SBenjamin Herrenschmidt /* 4040dd68309SBenjamin Herrenschmidt * If we don't have IO space at all, use MMIO now and 4050dd68309SBenjamin Herrenschmidt * assume the chip has MMIO enabled by default (rev 0x20 4060dd68309SBenjamin Herrenschmidt * and higher). 4070dd68309SBenjamin Herrenschmidt */ 4080dd68309SBenjamin Herrenschmidt if (!(pci_resource_flags(dev->pdev, 2) & IORESOURCE_IO)) { 4090dd68309SBenjamin Herrenschmidt DRM_INFO("platform has no IO space, trying MMIO\n"); 4100dd68309SBenjamin Herrenschmidt ast->ioregs = ast->regs + AST_IO_MM_OFFSET; 4110dd68309SBenjamin Herrenschmidt } 4120dd68309SBenjamin Herrenschmidt 4130dd68309SBenjamin Herrenschmidt /* "map" IO regs if the above hasn't done so already */ 4140dd68309SBenjamin Herrenschmidt if (!ast->ioregs) { 415312fec14SDave Airlie ast->ioregs = pci_iomap(dev->pdev, 2, 0); 416312fec14SDave Airlie if (!ast->ioregs) { 417312fec14SDave Airlie ret = -EIO; 418312fec14SDave Airlie goto out_free; 419312fec14SDave Airlie } 4200dd68309SBenjamin Herrenschmidt } 421312fec14SDave Airlie 422d1b98557SBenjamin Herrenschmidt ast_detect_chip(dev, &need_post); 423312fec14SDave Airlie 424312fec14SDave Airlie if (ast->chip != AST1180) { 425312fec14SDave Airlie ast_get_dram_info(dev); 426312fec14SDave Airlie ast->vram_size = ast_get_vram_info(dev); 427312fec14SDave Airlie DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size); 428312fec14SDave Airlie } 429312fec14SDave Airlie 430d1b98557SBenjamin Herrenschmidt if (need_post) 431d1b98557SBenjamin Herrenschmidt ast_post_gpu(dev); 432d1b98557SBenjamin Herrenschmidt 433312fec14SDave Airlie ret = ast_mm_init(ast); 434312fec14SDave Airlie if (ret) 435312fec14SDave Airlie goto out_free; 436312fec14SDave Airlie 437312fec14SDave Airlie drm_mode_config_init(dev); 438312fec14SDave Airlie 439312fec14SDave Airlie dev->mode_config.funcs = (void *)&ast_mode_funcs; 440312fec14SDave Airlie dev->mode_config.min_width = 0; 441312fec14SDave Airlie dev->mode_config.min_height = 0; 442312fec14SDave Airlie dev->mode_config.preferred_depth = 24; 443312fec14SDave Airlie dev->mode_config.prefer_shadow = 1; 444312fec14SDave Airlie 445312fec14SDave Airlie if (ast->chip == AST2100 || 446312fec14SDave Airlie ast->chip == AST2200 || 447312fec14SDave Airlie ast->chip == AST2300 || 4481453bf4cSDave Airlie ast->chip == AST2400 || 449312fec14SDave Airlie ast->chip == AST1180) { 450312fec14SDave Airlie dev->mode_config.max_width = 1920; 451312fec14SDave Airlie dev->mode_config.max_height = 2048; 452312fec14SDave Airlie } else { 453312fec14SDave Airlie dev->mode_config.max_width = 1600; 454312fec14SDave Airlie dev->mode_config.max_height = 1200; 455312fec14SDave Airlie } 456312fec14SDave Airlie 457312fec14SDave Airlie ret = ast_mode_init(dev); 458312fec14SDave Airlie if (ret) 459312fec14SDave Airlie goto out_free; 460312fec14SDave Airlie 461312fec14SDave Airlie ret = ast_fbdev_init(dev); 462312fec14SDave Airlie if (ret) 463312fec14SDave Airlie goto out_free; 464312fec14SDave Airlie 465312fec14SDave Airlie return 0; 466312fec14SDave Airlie out_free: 467312fec14SDave Airlie kfree(ast); 468312fec14SDave Airlie dev->dev_private = NULL; 469312fec14SDave Airlie return ret; 470312fec14SDave Airlie } 471312fec14SDave Airlie 472312fec14SDave Airlie int ast_driver_unload(struct drm_device *dev) 473312fec14SDave Airlie { 474312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 475312fec14SDave Airlie 47683c6620bSDave Airlie kfree(ast->dp501_fw_addr); 477312fec14SDave Airlie ast_mode_fini(dev); 478312fec14SDave Airlie ast_fbdev_fini(dev); 479312fec14SDave Airlie drm_mode_config_cleanup(dev); 480312fec14SDave Airlie 481312fec14SDave Airlie ast_mm_fini(ast); 482312fec14SDave Airlie pci_iounmap(dev->pdev, ast->ioregs); 483312fec14SDave Airlie pci_iounmap(dev->pdev, ast->regs); 484312fec14SDave Airlie kfree(ast); 485312fec14SDave Airlie return 0; 486312fec14SDave Airlie } 487312fec14SDave Airlie 488312fec14SDave Airlie int ast_gem_create(struct drm_device *dev, 489312fec14SDave Airlie u32 size, bool iskernel, 490312fec14SDave Airlie struct drm_gem_object **obj) 491312fec14SDave Airlie { 492312fec14SDave Airlie struct ast_bo *astbo; 493312fec14SDave Airlie int ret; 494312fec14SDave Airlie 495312fec14SDave Airlie *obj = NULL; 496312fec14SDave Airlie 497312fec14SDave Airlie size = roundup(size, PAGE_SIZE); 498312fec14SDave Airlie if (size == 0) 499312fec14SDave Airlie return -EINVAL; 500312fec14SDave Airlie 501312fec14SDave Airlie ret = ast_bo_create(dev, size, 0, 0, &astbo); 502312fec14SDave Airlie if (ret) { 503312fec14SDave Airlie if (ret != -ERESTARTSYS) 504312fec14SDave Airlie DRM_ERROR("failed to allocate GEM object\n"); 505312fec14SDave Airlie return ret; 506312fec14SDave Airlie } 507312fec14SDave Airlie *obj = &astbo->gem; 508312fec14SDave Airlie return 0; 509312fec14SDave Airlie } 510312fec14SDave Airlie 511312fec14SDave Airlie int ast_dumb_create(struct drm_file *file, 512312fec14SDave Airlie struct drm_device *dev, 513312fec14SDave Airlie struct drm_mode_create_dumb *args) 514312fec14SDave Airlie { 515312fec14SDave Airlie int ret; 516312fec14SDave Airlie struct drm_gem_object *gobj; 517312fec14SDave Airlie u32 handle; 518312fec14SDave Airlie 519312fec14SDave Airlie args->pitch = args->width * ((args->bpp + 7) / 8); 520312fec14SDave Airlie args->size = args->pitch * args->height; 521312fec14SDave Airlie 522312fec14SDave Airlie ret = ast_gem_create(dev, args->size, false, 523312fec14SDave Airlie &gobj); 524312fec14SDave Airlie if (ret) 525312fec14SDave Airlie return ret; 526312fec14SDave Airlie 527312fec14SDave Airlie ret = drm_gem_handle_create(file, gobj, &handle); 528312fec14SDave Airlie drm_gem_object_unreference_unlocked(gobj); 529312fec14SDave Airlie if (ret) 530312fec14SDave Airlie return ret; 531312fec14SDave Airlie 532312fec14SDave Airlie args->handle = handle; 533312fec14SDave Airlie return 0; 534312fec14SDave Airlie } 535312fec14SDave Airlie 536f6109803SRashika static void ast_bo_unref(struct ast_bo **bo) 537312fec14SDave Airlie { 538312fec14SDave Airlie struct ttm_buffer_object *tbo; 539312fec14SDave Airlie 540312fec14SDave Airlie if ((*bo) == NULL) 541312fec14SDave Airlie return; 542312fec14SDave Airlie 543312fec14SDave Airlie tbo = &((*bo)->bo); 544312fec14SDave Airlie ttm_bo_unref(&tbo); 545312fec14SDave Airlie *bo = NULL; 546312fec14SDave Airlie } 547eb649a61SDaniel Vetter 548312fec14SDave Airlie void ast_gem_free_object(struct drm_gem_object *obj) 549312fec14SDave Airlie { 550312fec14SDave Airlie struct ast_bo *ast_bo = gem_to_ast_bo(obj); 551312fec14SDave Airlie 552312fec14SDave Airlie ast_bo_unref(&ast_bo); 553312fec14SDave Airlie } 554312fec14SDave Airlie 555312fec14SDave Airlie 556312fec14SDave Airlie static inline u64 ast_bo_mmap_offset(struct ast_bo *bo) 557312fec14SDave Airlie { 55872525b3fSDavid Herrmann return drm_vma_node_offset_addr(&bo->bo.vma_node); 559312fec14SDave Airlie } 560312fec14SDave Airlie int 561312fec14SDave Airlie ast_dumb_mmap_offset(struct drm_file *file, 562312fec14SDave Airlie struct drm_device *dev, 563312fec14SDave Airlie uint32_t handle, 564312fec14SDave Airlie uint64_t *offset) 565312fec14SDave Airlie { 566312fec14SDave Airlie struct drm_gem_object *obj; 567312fec14SDave Airlie int ret; 568312fec14SDave Airlie struct ast_bo *bo; 569312fec14SDave Airlie 570312fec14SDave Airlie mutex_lock(&dev->struct_mutex); 571312fec14SDave Airlie obj = drm_gem_object_lookup(dev, file, handle); 572312fec14SDave Airlie if (obj == NULL) { 573312fec14SDave Airlie ret = -ENOENT; 574312fec14SDave Airlie goto out_unlock; 575312fec14SDave Airlie } 576312fec14SDave Airlie 577312fec14SDave Airlie bo = gem_to_ast_bo(obj); 578312fec14SDave Airlie *offset = ast_bo_mmap_offset(bo); 579312fec14SDave Airlie 580312fec14SDave Airlie drm_gem_object_unreference(obj); 581312fec14SDave Airlie ret = 0; 582312fec14SDave Airlie out_unlock: 583312fec14SDave Airlie mutex_unlock(&dev->struct_mutex); 584312fec14SDave Airlie return ret; 585312fec14SDave Airlie 586312fec14SDave Airlie } 587312fec14SDave Airlie 588