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 void ast_set_index_reg_mask(struct ast_private *ast, 36312fec14SDave Airlie uint32_t base, uint8_t index, 37312fec14SDave Airlie uint8_t mask, uint8_t val) 38312fec14SDave Airlie { 39312fec14SDave Airlie u8 tmp; 40312fec14SDave Airlie ast_io_write8(ast, base, index); 41312fec14SDave Airlie tmp = (ast_io_read8(ast, base + 1) & mask) | val; 42312fec14SDave Airlie ast_set_index_reg(ast, base, index, tmp); 43312fec14SDave Airlie } 44312fec14SDave Airlie 45312fec14SDave Airlie uint8_t ast_get_index_reg(struct ast_private *ast, 46312fec14SDave Airlie uint32_t base, uint8_t index) 47312fec14SDave Airlie { 48312fec14SDave Airlie uint8_t ret; 49312fec14SDave Airlie ast_io_write8(ast, base, index); 50312fec14SDave Airlie ret = ast_io_read8(ast, base + 1); 51312fec14SDave Airlie return ret; 52312fec14SDave Airlie } 53312fec14SDave Airlie 54312fec14SDave Airlie uint8_t ast_get_index_reg_mask(struct ast_private *ast, 55312fec14SDave Airlie uint32_t base, uint8_t index, uint8_t mask) 56312fec14SDave Airlie { 57312fec14SDave Airlie uint8_t ret; 58312fec14SDave Airlie ast_io_write8(ast, base, index); 59312fec14SDave Airlie ret = ast_io_read8(ast, base + 1) & mask; 60312fec14SDave Airlie return ret; 61312fec14SDave Airlie } 62312fec14SDave Airlie 6371f677a9SRussell Currey static void ast_detect_config_mode(struct drm_device *dev, u32 *scu_rev) 6471f677a9SRussell Currey { 6571f677a9SRussell Currey struct device_node *np = dev->pdev->dev.of_node; 6671f677a9SRussell Currey struct ast_private *ast = dev->dev_private; 6771f677a9SRussell Currey uint32_t data, jregd0, jregd1; 6871f677a9SRussell Currey 6971f677a9SRussell Currey /* Defaults */ 7071f677a9SRussell Currey ast->config_mode = ast_use_defaults; 7171f677a9SRussell Currey *scu_rev = 0xffffffff; 7271f677a9SRussell Currey 7371f677a9SRussell Currey /* Check if we have device-tree properties */ 7471f677a9SRussell Currey if (np && !of_property_read_u32(np, "aspeed,scu-revision-id", 7571f677a9SRussell Currey scu_rev)) { 7671f677a9SRussell Currey /* We do, disable P2A access */ 7771f677a9SRussell Currey ast->config_mode = ast_use_dt; 7871f677a9SRussell Currey DRM_INFO("Using device-tree for configuration\n"); 7971f677a9SRussell Currey return; 8071f677a9SRussell Currey } 8171f677a9SRussell Currey 8271f677a9SRussell Currey /* Not all families have a P2A bridge */ 8371f677a9SRussell Currey if (dev->pdev->device != PCI_CHIP_AST2000) 8471f677a9SRussell Currey return; 8571f677a9SRussell Currey 8671f677a9SRussell Currey /* 8771f677a9SRussell Currey * The BMC will set SCU 0x40 D[12] to 1 if the P2 bridge 8871f677a9SRussell Currey * is disabled. We force using P2A if VGA only mode bit 8971f677a9SRussell Currey * is set D[7] 9071f677a9SRussell Currey */ 9171f677a9SRussell Currey jregd0 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); 9271f677a9SRussell Currey jregd1 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); 9371f677a9SRussell Currey if (!(jregd0 & 0x80) || !(jregd1 & 0x10)) { 9471f677a9SRussell Currey /* Double check it's actually working */ 9571f677a9SRussell Currey data = ast_read32(ast, 0xf004); 9671f677a9SRussell Currey if (data != 0xFFFFFFFF) { 9771f677a9SRussell Currey /* P2A works, grab silicon revision */ 9871f677a9SRussell Currey ast->config_mode = ast_use_p2a; 9971f677a9SRussell Currey 10071f677a9SRussell Currey DRM_INFO("Using P2A bridge for configuration\n"); 10171f677a9SRussell Currey 10271f677a9SRussell Currey /* Read SCU7c (silicon revision register) */ 10371f677a9SRussell Currey ast_write32(ast, 0xf004, 0x1e6e0000); 10471f677a9SRussell Currey ast_write32(ast, 0xf000, 0x1); 10571f677a9SRussell Currey *scu_rev = ast_read32(ast, 0x1207c); 10671f677a9SRussell Currey return; 10771f677a9SRussell Currey } 10871f677a9SRussell Currey } 10971f677a9SRussell Currey 11071f677a9SRussell Currey /* We have a P2A bridge but it's disabled */ 11171f677a9SRussell Currey DRM_INFO("P2A bridge disabled, using default configuration\n"); 11271f677a9SRussell Currey } 113312fec14SDave Airlie 114d1b98557SBenjamin Herrenschmidt static int ast_detect_chip(struct drm_device *dev, bool *need_post) 115312fec14SDave Airlie { 116312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 11771f677a9SRussell Currey uint32_t jreg, scu_rev; 11871f677a9SRussell Currey 11971f677a9SRussell Currey /* 12071f677a9SRussell Currey * If VGA isn't enabled, we need to enable now or subsequent 12171f677a9SRussell Currey * access to the scratch registers will fail. We also inform 12271f677a9SRussell Currey * our caller that it needs to POST the chip 12371f677a9SRussell Currey * (Assumption: VGA not enabled -> need to POST) 12471f677a9SRussell Currey */ 12571f677a9SRussell Currey if (!ast_is_vga_enabled(dev)) { 12671f677a9SRussell Currey ast_enable_vga(dev); 12771f677a9SRussell Currey DRM_INFO("VGA not enabled on entry, requesting chip POST\n"); 12871f677a9SRussell Currey *need_post = true; 12971f677a9SRussell Currey } else 13071f677a9SRussell Currey *need_post = false; 13171f677a9SRussell Currey 13271f677a9SRussell Currey 13371f677a9SRussell Currey /* Enable extended register access */ 13471f677a9SRussell Currey ast_enable_mmio(dev); 1358f372e25SY.C. Chen ast_open_key(ast); 136312fec14SDave Airlie 13771f677a9SRussell Currey /* Find out whether P2A works or whether to use device-tree */ 13871f677a9SRussell Currey ast_detect_config_mode(dev, &scu_rev); 13971f677a9SRussell Currey 14071f677a9SRussell Currey /* Identify chipset */ 141312fec14SDave Airlie if (dev->pdev->device == PCI_CHIP_AST1180) { 142312fec14SDave Airlie ast->chip = AST1100; 143312fec14SDave Airlie DRM_INFO("AST 1180 detected\n"); 144312fec14SDave Airlie } else { 1451453bf4cSDave Airlie if (dev->pdev->revision >= 0x30) { 1461453bf4cSDave Airlie ast->chip = AST2400; 1471453bf4cSDave Airlie DRM_INFO("AST 2400 detected\n"); 1481453bf4cSDave Airlie } else if (dev->pdev->revision >= 0x20) { 149312fec14SDave Airlie ast->chip = AST2300; 150312fec14SDave Airlie DRM_INFO("AST 2300 detected\n"); 151312fec14SDave Airlie } else if (dev->pdev->revision >= 0x10) { 15271f677a9SRussell Currey switch (scu_rev & 0x0300) { 153312fec14SDave Airlie case 0x0200: 154312fec14SDave Airlie ast->chip = AST1100; 155312fec14SDave Airlie DRM_INFO("AST 1100 detected\n"); 156312fec14SDave Airlie break; 157312fec14SDave Airlie case 0x0100: 158312fec14SDave Airlie ast->chip = AST2200; 159312fec14SDave Airlie DRM_INFO("AST 2200 detected\n"); 160312fec14SDave Airlie break; 161312fec14SDave Airlie case 0x0000: 162312fec14SDave Airlie ast->chip = AST2150; 163312fec14SDave Airlie DRM_INFO("AST 2150 detected\n"); 164312fec14SDave Airlie break; 165312fec14SDave Airlie default: 166312fec14SDave Airlie ast->chip = AST2100; 167312fec14SDave Airlie DRM_INFO("AST 2100 detected\n"); 168312fec14SDave Airlie break; 169312fec14SDave Airlie } 170312fec14SDave Airlie ast->vga2_clone = false; 171312fec14SDave Airlie } else { 17283502a5dSY.C. Chen ast->chip = AST2000; 173312fec14SDave Airlie DRM_INFO("AST 2000 detected\n"); 174312fec14SDave Airlie } 175312fec14SDave Airlie } 176f1f62f2cSDave Airlie 177d1b98557SBenjamin Herrenschmidt /* Check if we support wide screen */ 178f1f62f2cSDave Airlie switch (ast->chip) { 179f1f62f2cSDave Airlie case AST1180: 180f1f62f2cSDave Airlie ast->support_wide_screen = true; 181f1f62f2cSDave Airlie break; 182f1f62f2cSDave Airlie case AST2000: 183f1f62f2cSDave Airlie ast->support_wide_screen = false; 184f1f62f2cSDave Airlie break; 185f1f62f2cSDave Airlie default: 186f1f62f2cSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); 187f1f62f2cSDave Airlie if (!(jreg & 0x80)) 188f1f62f2cSDave Airlie ast->support_wide_screen = true; 189f1f62f2cSDave Airlie else if (jreg & 0x01) 190f1f62f2cSDave Airlie ast->support_wide_screen = true; 191f1f62f2cSDave Airlie else { 192f1f62f2cSDave Airlie ast->support_wide_screen = false; 19371f677a9SRussell Currey if (ast->chip == AST2300 && 19471f677a9SRussell Currey (scu_rev & 0x300) == 0x0) /* ast1300 */ 195f1f62f2cSDave Airlie ast->support_wide_screen = true; 19671f677a9SRussell Currey if (ast->chip == AST2400 && 19771f677a9SRussell Currey (scu_rev & 0x300) == 0x100) /* ast1400 */ 1981453bf4cSDave Airlie ast->support_wide_screen = true; 199f1f62f2cSDave Airlie } 200f1f62f2cSDave Airlie break; 201f1f62f2cSDave Airlie } 202f1f62f2cSDave Airlie 203d1b98557SBenjamin Herrenschmidt /* Check 3rd Tx option (digital output afaik) */ 20483c6620bSDave Airlie ast->tx_chip_type = AST_TX_NONE; 205d1b98557SBenjamin Herrenschmidt 206d1b98557SBenjamin Herrenschmidt /* 207d1b98557SBenjamin Herrenschmidt * VGACRA3 Enhanced Color Mode Register, check if DVO is already 208d1b98557SBenjamin Herrenschmidt * enabled, in that case, assume we have a SIL164 TMDS transmitter 20942fb1427SBenjamin Herrenschmidt * 21042fb1427SBenjamin Herrenschmidt * Don't make that assumption if we the chip wasn't enabled and 21142fb1427SBenjamin Herrenschmidt * is at power-on reset, otherwise we'll incorrectly "detect" a 21242fb1427SBenjamin Herrenschmidt * SIL164 when there is none. 213d1b98557SBenjamin Herrenschmidt */ 21442fb1427SBenjamin Herrenschmidt if (!*need_post) { 21583c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff); 21683c6620bSDave Airlie if (jreg & 0x80) 21783c6620bSDave Airlie ast->tx_chip_type = AST_TX_SIL164; 21842fb1427SBenjamin Herrenschmidt } 219d1b98557SBenjamin Herrenschmidt 22083c6620bSDave Airlie if ((ast->chip == AST2300) || (ast->chip == AST2400)) { 221d1b98557SBenjamin Herrenschmidt /* 222d1b98557SBenjamin Herrenschmidt * On AST2300 and 2400, look the configuration set by the SoC in 223d1b98557SBenjamin Herrenschmidt * the SOC scratch register #1 bits 11:8 (interestingly marked 22442fb1427SBenjamin Herrenschmidt * as "reserved" in the spec) 225d1b98557SBenjamin Herrenschmidt */ 22683c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); 22783c6620bSDave Airlie switch (jreg) { 22883c6620bSDave Airlie case 0x04: 22983c6620bSDave Airlie ast->tx_chip_type = AST_TX_SIL164; 23083c6620bSDave Airlie break; 23183c6620bSDave Airlie case 0x08: 23283c6620bSDave Airlie ast->dp501_fw_addr = kzalloc(32*1024, GFP_KERNEL); 23383c6620bSDave Airlie if (ast->dp501_fw_addr) { 23483c6620bSDave Airlie /* backup firmware */ 23583c6620bSDave Airlie if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) { 23683c6620bSDave Airlie kfree(ast->dp501_fw_addr); 23783c6620bSDave Airlie ast->dp501_fw_addr = NULL; 23883c6620bSDave Airlie } 23983c6620bSDave Airlie } 24083c6620bSDave Airlie /* fallthrough */ 24183c6620bSDave Airlie case 0x0c: 24283c6620bSDave Airlie ast->tx_chip_type = AST_TX_DP501; 24383c6620bSDave Airlie } 24483c6620bSDave Airlie } 24583c6620bSDave Airlie 246d1b98557SBenjamin Herrenschmidt /* Print stuff for diagnostic purposes */ 247d1b98557SBenjamin Herrenschmidt switch(ast->tx_chip_type) { 248d1b98557SBenjamin Herrenschmidt case AST_TX_SIL164: 249d1b98557SBenjamin Herrenschmidt DRM_INFO("Using Sil164 TMDS transmitter\n"); 250d1b98557SBenjamin Herrenschmidt break; 251d1b98557SBenjamin Herrenschmidt case AST_TX_DP501: 252d1b98557SBenjamin Herrenschmidt DRM_INFO("Using DP501 DisplayPort transmitter\n"); 253d1b98557SBenjamin Herrenschmidt break; 254d1b98557SBenjamin Herrenschmidt default: 255d1b98557SBenjamin Herrenschmidt DRM_INFO("Analog VGA only\n"); 256d1b98557SBenjamin Herrenschmidt } 257312fec14SDave Airlie return 0; 258312fec14SDave Airlie } 259312fec14SDave Airlie 260312fec14SDave Airlie static int ast_get_dram_info(struct drm_device *dev) 261312fec14SDave Airlie { 26271f677a9SRussell Currey struct device_node *np = dev->pdev->dev.of_node; 263312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 26471f677a9SRussell Currey uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap; 26571f677a9SRussell Currey uint32_t denum, num, div, ref_pll, dsel; 266312fec14SDave Airlie 26771f677a9SRussell Currey switch (ast->config_mode) { 26871f677a9SRussell Currey case ast_use_dt: 26971f677a9SRussell Currey /* 27071f677a9SRussell Currey * If some properties are missing, use reasonable 27171f677a9SRussell Currey * defaults for AST2400 27271f677a9SRussell Currey */ 27371f677a9SRussell Currey if (of_property_read_u32(np, "aspeed,mcr-configuration", 27471f677a9SRussell Currey &mcr_cfg)) 27571f677a9SRussell Currey mcr_cfg = 0x00000577; 27671f677a9SRussell Currey if (of_property_read_u32(np, "aspeed,mcr-scu-mpll", 27771f677a9SRussell Currey &mcr_scu_mpll)) 27871f677a9SRussell Currey mcr_scu_mpll = 0x000050C0; 27971f677a9SRussell Currey if (of_property_read_u32(np, "aspeed,mcr-scu-strap", 28071f677a9SRussell Currey &mcr_scu_strap)) 28171f677a9SRussell Currey mcr_scu_strap = 0; 28271f677a9SRussell Currey break; 28371f677a9SRussell Currey case ast_use_p2a: 28471f677a9SRussell Currey ast_write32(ast, 0xf004, 0x1e6e0000); 28571f677a9SRussell Currey ast_write32(ast, 0xf000, 0x1); 28671f677a9SRussell Currey mcr_cfg = ast_read32(ast, 0x10004); 28771f677a9SRussell Currey mcr_scu_mpll = ast_read32(ast, 0x10120); 28871f677a9SRussell Currey mcr_scu_strap = ast_read32(ast, 0x10170); 28971f677a9SRussell Currey break; 29071f677a9SRussell Currey case ast_use_defaults: 29171f677a9SRussell Currey default: 2926c971c09SY.C. Chen ast->dram_bus_width = 16; 2936c971c09SY.C. Chen ast->dram_type = AST_DRAM_1Gx16; 2946c971c09SY.C. Chen ast->mclk = 396; 29571f677a9SRussell Currey return 0; 2966c971c09SY.C. Chen } 297312fec14SDave Airlie 29871f677a9SRussell Currey if (mcr_cfg & 0x40) 299312fec14SDave Airlie ast->dram_bus_width = 16; 300312fec14SDave Airlie else 301312fec14SDave Airlie ast->dram_bus_width = 32; 302312fec14SDave Airlie 3031453bf4cSDave Airlie if (ast->chip == AST2300 || ast->chip == AST2400) { 30471f677a9SRussell Currey switch (mcr_cfg & 0x03) { 305312fec14SDave Airlie case 0: 306312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 307312fec14SDave Airlie break; 308312fec14SDave Airlie default: 309312fec14SDave Airlie case 1: 310312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 311312fec14SDave Airlie break; 312312fec14SDave Airlie case 2: 313312fec14SDave Airlie ast->dram_type = AST_DRAM_2Gx16; 314312fec14SDave Airlie break; 315312fec14SDave Airlie case 3: 316312fec14SDave Airlie ast->dram_type = AST_DRAM_4Gx16; 317312fec14SDave Airlie break; 318312fec14SDave Airlie } 319312fec14SDave Airlie } else { 32071f677a9SRussell Currey switch (mcr_cfg & 0x0c) { 321312fec14SDave Airlie case 0: 322312fec14SDave Airlie case 4: 323312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx16; 324312fec14SDave Airlie break; 325312fec14SDave Airlie case 8: 32671f677a9SRussell Currey if (mcr_cfg & 0x40) 327312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx16; 328312fec14SDave Airlie else 329312fec14SDave Airlie ast->dram_type = AST_DRAM_512Mx32; 330312fec14SDave Airlie break; 331312fec14SDave Airlie case 0xc: 332312fec14SDave Airlie ast->dram_type = AST_DRAM_1Gx32; 333312fec14SDave Airlie break; 334312fec14SDave Airlie } 335312fec14SDave Airlie } 336312fec14SDave Airlie 33771f677a9SRussell Currey if (mcr_scu_strap & 0x2000) 338312fec14SDave Airlie ref_pll = 14318; 339312fec14SDave Airlie else 340312fec14SDave Airlie ref_pll = 12000; 341312fec14SDave Airlie 34271f677a9SRussell Currey denum = mcr_scu_mpll & 0x1f; 34371f677a9SRussell Currey num = (mcr_scu_mpll & 0x3fe0) >> 5; 34471f677a9SRussell Currey dsel = (mcr_scu_mpll & 0xc000) >> 14; 34571f677a9SRussell Currey switch (dsel) { 346312fec14SDave Airlie case 3: 347312fec14SDave Airlie div = 0x4; 348312fec14SDave Airlie break; 349312fec14SDave Airlie case 2: 350312fec14SDave Airlie case 1: 351312fec14SDave Airlie div = 0x2; 352312fec14SDave Airlie break; 353312fec14SDave Airlie default: 354312fec14SDave Airlie div = 0x1; 355312fec14SDave Airlie break; 356312fec14SDave Airlie } 3576475a7ccSBenjamin Herrenschmidt ast->mclk = ref_pll * (num + 2) / ((denum + 2) * (div * 1000)); 358312fec14SDave Airlie return 0; 359312fec14SDave Airlie } 360312fec14SDave Airlie 361312fec14SDave Airlie static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb) 362312fec14SDave Airlie { 363312fec14SDave Airlie struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb); 364312fec14SDave Airlie 365f7813aa0SMarkus Elfring drm_gem_object_unreference_unlocked(ast_fb->obj); 366312fec14SDave Airlie drm_framebuffer_cleanup(fb); 367312fec14SDave Airlie kfree(fb); 368312fec14SDave Airlie } 369312fec14SDave Airlie 370312fec14SDave Airlie static const struct drm_framebuffer_funcs ast_fb_funcs = { 371312fec14SDave Airlie .destroy = ast_user_framebuffer_destroy, 372312fec14SDave Airlie }; 373312fec14SDave Airlie 374312fec14SDave Airlie 375312fec14SDave Airlie int ast_framebuffer_init(struct drm_device *dev, 376312fec14SDave Airlie struct ast_framebuffer *ast_fb, 3771eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd, 378312fec14SDave Airlie struct drm_gem_object *obj) 379312fec14SDave Airlie { 380312fec14SDave Airlie int ret; 381312fec14SDave Airlie 382a3f913caSVille Syrjälä drm_helper_mode_fill_fb_struct(dev, &ast_fb->base, mode_cmd); 383c7d73f6aSDaniel Vetter ast_fb->obj = obj; 384312fec14SDave Airlie ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs); 385312fec14SDave Airlie if (ret) { 386312fec14SDave Airlie DRM_ERROR("framebuffer init failed %d\n", ret); 387312fec14SDave Airlie return ret; 388312fec14SDave Airlie } 389312fec14SDave Airlie return 0; 390312fec14SDave Airlie } 391312fec14SDave Airlie 392312fec14SDave Airlie static struct drm_framebuffer * 393312fec14SDave Airlie ast_user_framebuffer_create(struct drm_device *dev, 394312fec14SDave Airlie struct drm_file *filp, 3951eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd) 396312fec14SDave Airlie { 397312fec14SDave Airlie struct drm_gem_object *obj; 398312fec14SDave Airlie struct ast_framebuffer *ast_fb; 399312fec14SDave Airlie int ret; 400312fec14SDave Airlie 401a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]); 402312fec14SDave Airlie if (obj == NULL) 403312fec14SDave Airlie return ERR_PTR(-ENOENT); 404312fec14SDave Airlie 405312fec14SDave Airlie ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL); 406312fec14SDave Airlie if (!ast_fb) { 407312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 408312fec14SDave Airlie return ERR_PTR(-ENOMEM); 409312fec14SDave Airlie } 410312fec14SDave Airlie 411312fec14SDave Airlie ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj); 412312fec14SDave Airlie if (ret) { 413312fec14SDave Airlie drm_gem_object_unreference_unlocked(obj); 414312fec14SDave Airlie kfree(ast_fb); 415312fec14SDave Airlie return ERR_PTR(ret); 416312fec14SDave Airlie } 417312fec14SDave Airlie return &ast_fb->base; 418312fec14SDave Airlie } 419312fec14SDave Airlie 420312fec14SDave Airlie static const struct drm_mode_config_funcs ast_mode_funcs = { 421312fec14SDave Airlie .fb_create = ast_user_framebuffer_create, 422312fec14SDave Airlie }; 423312fec14SDave Airlie 424312fec14SDave Airlie static u32 ast_get_vram_info(struct drm_device *dev) 425312fec14SDave Airlie { 426312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 427312fec14SDave Airlie u8 jreg; 42883c6620bSDave Airlie u32 vram_size; 429312fec14SDave Airlie ast_open_key(ast); 430312fec14SDave Airlie 43183c6620bSDave Airlie vram_size = AST_VIDMEM_DEFAULT_SIZE; 432312fec14SDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff); 433312fec14SDave Airlie switch (jreg & 3) { 43483c6620bSDave Airlie case 0: vram_size = AST_VIDMEM_SIZE_8M; break; 43583c6620bSDave Airlie case 1: vram_size = AST_VIDMEM_SIZE_16M; break; 43683c6620bSDave Airlie case 2: vram_size = AST_VIDMEM_SIZE_32M; break; 43783c6620bSDave Airlie case 3: vram_size = AST_VIDMEM_SIZE_64M; break; 438312fec14SDave Airlie } 43983c6620bSDave Airlie 44083c6620bSDave Airlie jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff); 44183c6620bSDave Airlie switch (jreg & 0x03) { 44283c6620bSDave Airlie case 1: 44383c6620bSDave Airlie vram_size -= 0x100000; 44483c6620bSDave Airlie break; 44583c6620bSDave Airlie case 2: 44683c6620bSDave Airlie vram_size -= 0x200000; 44783c6620bSDave Airlie break; 44883c6620bSDave Airlie case 3: 44983c6620bSDave Airlie vram_size -= 0x400000; 45083c6620bSDave Airlie break; 45183c6620bSDave Airlie } 45283c6620bSDave Airlie 45383c6620bSDave Airlie return vram_size; 454312fec14SDave Airlie } 455312fec14SDave Airlie 456312fec14SDave Airlie int ast_driver_load(struct drm_device *dev, unsigned long flags) 457312fec14SDave Airlie { 458312fec14SDave Airlie struct ast_private *ast; 459d1b98557SBenjamin Herrenschmidt bool need_post; 460312fec14SDave Airlie int ret = 0; 461312fec14SDave Airlie 462312fec14SDave Airlie ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL); 463312fec14SDave Airlie if (!ast) 464312fec14SDave Airlie return -ENOMEM; 465312fec14SDave Airlie 466312fec14SDave Airlie dev->dev_private = ast; 467312fec14SDave Airlie ast->dev = dev; 468312fec14SDave Airlie 469312fec14SDave Airlie ast->regs = pci_iomap(dev->pdev, 1, 0); 470312fec14SDave Airlie if (!ast->regs) { 471312fec14SDave Airlie ret = -EIO; 472312fec14SDave Airlie goto out_free; 473312fec14SDave Airlie } 4740dd68309SBenjamin Herrenschmidt 4750dd68309SBenjamin Herrenschmidt /* 4760dd68309SBenjamin Herrenschmidt * If we don't have IO space at all, use MMIO now and 4770dd68309SBenjamin Herrenschmidt * assume the chip has MMIO enabled by default (rev 0x20 4780dd68309SBenjamin Herrenschmidt * and higher). 4790dd68309SBenjamin Herrenschmidt */ 4800dd68309SBenjamin Herrenschmidt if (!(pci_resource_flags(dev->pdev, 2) & IORESOURCE_IO)) { 4810dd68309SBenjamin Herrenschmidt DRM_INFO("platform has no IO space, trying MMIO\n"); 4820dd68309SBenjamin Herrenschmidt ast->ioregs = ast->regs + AST_IO_MM_OFFSET; 4830dd68309SBenjamin Herrenschmidt } 4840dd68309SBenjamin Herrenschmidt 4850dd68309SBenjamin Herrenschmidt /* "map" IO regs if the above hasn't done so already */ 4860dd68309SBenjamin Herrenschmidt if (!ast->ioregs) { 487312fec14SDave Airlie ast->ioregs = pci_iomap(dev->pdev, 2, 0); 488312fec14SDave Airlie if (!ast->ioregs) { 489312fec14SDave Airlie ret = -EIO; 490312fec14SDave Airlie goto out_free; 491312fec14SDave Airlie } 4920dd68309SBenjamin Herrenschmidt } 493312fec14SDave Airlie 494d1b98557SBenjamin Herrenschmidt ast_detect_chip(dev, &need_post); 495312fec14SDave Airlie 496312fec14SDave Airlie if (ast->chip != AST1180) { 497298360afSRussell Currey ret = ast_get_dram_info(dev); 498298360afSRussell Currey if (ret) 499298360afSRussell Currey goto out_free; 500312fec14SDave Airlie ast->vram_size = ast_get_vram_info(dev); 5016475a7ccSBenjamin Herrenschmidt DRM_INFO("dram MCLK=%u Mhz type=%d bus_width=%d size=%08x\n", 5026475a7ccSBenjamin Herrenschmidt ast->mclk, ast->dram_type, 5036475a7ccSBenjamin Herrenschmidt ast->dram_bus_width, ast->vram_size); 504312fec14SDave Airlie } 505312fec14SDave Airlie 506d1b98557SBenjamin Herrenschmidt if (need_post) 507d1b98557SBenjamin Herrenschmidt ast_post_gpu(dev); 508d1b98557SBenjamin Herrenschmidt 509312fec14SDave Airlie ret = ast_mm_init(ast); 510312fec14SDave Airlie if (ret) 511312fec14SDave Airlie goto out_free; 512312fec14SDave Airlie 513312fec14SDave Airlie drm_mode_config_init(dev); 514312fec14SDave Airlie 515312fec14SDave Airlie dev->mode_config.funcs = (void *)&ast_mode_funcs; 516312fec14SDave Airlie dev->mode_config.min_width = 0; 517312fec14SDave Airlie dev->mode_config.min_height = 0; 518312fec14SDave Airlie dev->mode_config.preferred_depth = 24; 519312fec14SDave Airlie dev->mode_config.prefer_shadow = 1; 52028fb4cb7SEgbert Eich dev->mode_config.fb_base = pci_resource_start(ast->dev->pdev, 0); 521312fec14SDave Airlie 522312fec14SDave Airlie if (ast->chip == AST2100 || 523312fec14SDave Airlie ast->chip == AST2200 || 524312fec14SDave Airlie ast->chip == AST2300 || 5251453bf4cSDave Airlie ast->chip == AST2400 || 526312fec14SDave Airlie ast->chip == AST1180) { 527312fec14SDave Airlie dev->mode_config.max_width = 1920; 528312fec14SDave Airlie dev->mode_config.max_height = 2048; 529312fec14SDave Airlie } else { 530312fec14SDave Airlie dev->mode_config.max_width = 1600; 531312fec14SDave Airlie dev->mode_config.max_height = 1200; 532312fec14SDave Airlie } 533312fec14SDave Airlie 534312fec14SDave Airlie ret = ast_mode_init(dev); 535312fec14SDave Airlie if (ret) 536312fec14SDave Airlie goto out_free; 537312fec14SDave Airlie 538312fec14SDave Airlie ret = ast_fbdev_init(dev); 539312fec14SDave Airlie if (ret) 540312fec14SDave Airlie goto out_free; 541312fec14SDave Airlie 542312fec14SDave Airlie return 0; 543312fec14SDave Airlie out_free: 544312fec14SDave Airlie kfree(ast); 545312fec14SDave Airlie dev->dev_private = NULL; 546312fec14SDave Airlie return ret; 547312fec14SDave Airlie } 548312fec14SDave Airlie 54911b3c20bSGabriel Krisman Bertazi void ast_driver_unload(struct drm_device *dev) 550312fec14SDave Airlie { 551312fec14SDave Airlie struct ast_private *ast = dev->dev_private; 552312fec14SDave Airlie 55383c6620bSDave Airlie kfree(ast->dp501_fw_addr); 554312fec14SDave Airlie ast_mode_fini(dev); 555312fec14SDave Airlie ast_fbdev_fini(dev); 556312fec14SDave Airlie drm_mode_config_cleanup(dev); 557312fec14SDave Airlie 558312fec14SDave Airlie ast_mm_fini(ast); 559312fec14SDave Airlie pci_iounmap(dev->pdev, ast->ioregs); 560312fec14SDave Airlie pci_iounmap(dev->pdev, ast->regs); 561312fec14SDave Airlie kfree(ast); 562312fec14SDave Airlie } 563312fec14SDave Airlie 564312fec14SDave Airlie int ast_gem_create(struct drm_device *dev, 565312fec14SDave Airlie u32 size, bool iskernel, 566312fec14SDave Airlie struct drm_gem_object **obj) 567312fec14SDave Airlie { 568312fec14SDave Airlie struct ast_bo *astbo; 569312fec14SDave Airlie int ret; 570312fec14SDave Airlie 571312fec14SDave Airlie *obj = NULL; 572312fec14SDave Airlie 573312fec14SDave Airlie size = roundup(size, PAGE_SIZE); 574312fec14SDave Airlie if (size == 0) 575312fec14SDave Airlie return -EINVAL; 576312fec14SDave Airlie 577312fec14SDave Airlie ret = ast_bo_create(dev, size, 0, 0, &astbo); 578312fec14SDave Airlie if (ret) { 579312fec14SDave Airlie if (ret != -ERESTARTSYS) 580312fec14SDave Airlie DRM_ERROR("failed to allocate GEM object\n"); 581312fec14SDave Airlie return ret; 582312fec14SDave Airlie } 583312fec14SDave Airlie *obj = &astbo->gem; 584312fec14SDave Airlie return 0; 585312fec14SDave Airlie } 586312fec14SDave Airlie 587312fec14SDave Airlie int ast_dumb_create(struct drm_file *file, 588312fec14SDave Airlie struct drm_device *dev, 589312fec14SDave Airlie struct drm_mode_create_dumb *args) 590312fec14SDave Airlie { 591312fec14SDave Airlie int ret; 592312fec14SDave Airlie struct drm_gem_object *gobj; 593312fec14SDave Airlie u32 handle; 594312fec14SDave Airlie 595312fec14SDave Airlie args->pitch = args->width * ((args->bpp + 7) / 8); 596312fec14SDave Airlie args->size = args->pitch * args->height; 597312fec14SDave Airlie 598312fec14SDave Airlie ret = ast_gem_create(dev, args->size, false, 599312fec14SDave Airlie &gobj); 600312fec14SDave Airlie if (ret) 601312fec14SDave Airlie return ret; 602312fec14SDave Airlie 603312fec14SDave Airlie ret = drm_gem_handle_create(file, gobj, &handle); 604312fec14SDave Airlie drm_gem_object_unreference_unlocked(gobj); 605312fec14SDave Airlie if (ret) 606312fec14SDave Airlie return ret; 607312fec14SDave Airlie 608312fec14SDave Airlie args->handle = handle; 609312fec14SDave Airlie return 0; 610312fec14SDave Airlie } 611312fec14SDave Airlie 612f6109803SRashika static void ast_bo_unref(struct ast_bo **bo) 613312fec14SDave Airlie { 614312fec14SDave Airlie struct ttm_buffer_object *tbo; 615312fec14SDave Airlie 616312fec14SDave Airlie if ((*bo) == NULL) 617312fec14SDave Airlie return; 618312fec14SDave Airlie 619312fec14SDave Airlie tbo = &((*bo)->bo); 620312fec14SDave Airlie ttm_bo_unref(&tbo); 621312fec14SDave Airlie *bo = NULL; 622312fec14SDave Airlie } 623eb649a61SDaniel Vetter 624312fec14SDave Airlie void ast_gem_free_object(struct drm_gem_object *obj) 625312fec14SDave Airlie { 626312fec14SDave Airlie struct ast_bo *ast_bo = gem_to_ast_bo(obj); 627312fec14SDave Airlie 628312fec14SDave Airlie ast_bo_unref(&ast_bo); 629312fec14SDave Airlie } 630312fec14SDave Airlie 631312fec14SDave Airlie 632312fec14SDave Airlie static inline u64 ast_bo_mmap_offset(struct ast_bo *bo) 633312fec14SDave Airlie { 63472525b3fSDavid Herrmann return drm_vma_node_offset_addr(&bo->bo.vma_node); 635312fec14SDave Airlie } 636312fec14SDave Airlie int 637312fec14SDave Airlie ast_dumb_mmap_offset(struct drm_file *file, 638312fec14SDave Airlie struct drm_device *dev, 639312fec14SDave Airlie uint32_t handle, 640312fec14SDave Airlie uint64_t *offset) 641312fec14SDave Airlie { 642312fec14SDave Airlie struct drm_gem_object *obj; 643312fec14SDave Airlie struct ast_bo *bo; 644312fec14SDave Airlie 645a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 646a66b2ea2SDaniel Vetter if (obj == NULL) 647a66b2ea2SDaniel Vetter return -ENOENT; 648312fec14SDave Airlie 649312fec14SDave Airlie bo = gem_to_ast_bo(obj); 650312fec14SDave Airlie *offset = ast_bo_mmap_offset(bo); 651312fec14SDave Airlie 652a66b2ea2SDaniel Vetter drm_gem_object_unreference_unlocked(obj); 653a66b2ea2SDaniel Vetter 654a66b2ea2SDaniel Vetter return 0; 655312fec14SDave Airlie 656312fec14SDave Airlie } 657312fec14SDave Airlie 658