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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 | /* * Generic System Framebuffers on x86 * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> * * EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. */ /* * EFI Quirks * Several EFI systems do not correctly advertise their boot framebuffers. * Hence, we use this static table of known broken machines and fix up the * information so framebuffer drivers can load corectly. */ #include <linux/dmi.h> #include <linux/err.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/pci.h> #include <linux/screen_info.h> #include <video/vga.h> #include <asm/sysfb.h> enum { OVERRIDE_NONE = 0x0, OVERRIDE_BASE = 0x1, OVERRIDE_STRIDE = 0x2, OVERRIDE_HEIGHT = 0x4, OVERRIDE_WIDTH = 0x8, }; struct efifb_dmi_info efifb_dmi_list[] = { [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */ [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */ [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE }, [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE }, [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE }, [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE }, [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, /* 11" Macbook Air 3,1 passes the wrong stride */ [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE }, [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */ [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE }, [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE } }; #define choose_value(dmivalue, fwvalue, field, flags) ({ \ typeof(fwvalue) _ret_ = fwvalue; \ if ((flags) & (field)) \ _ret_ = dmivalue; \ else if ((fwvalue) == 0) \ _ret_ = dmivalue; \ _ret_; \ }) static int __init efifb_set_system(const struct dmi_system_id *id) { struct efifb_dmi_info *info = id->driver_data; if (info->base == 0 && info->height == 0 && info->width == 0 && info->stride == 0) return 0; /* Trust the bootloader over the DMI tables */ if (screen_info.lfb_base == 0) { #if defined(CONFIG_PCI) struct pci_dev *dev = NULL; int found_bar = 0; #endif if (info->base) { screen_info.lfb_base = choose_value(info->base, screen_info.lfb_base, OVERRIDE_BASE, info->flags); #if defined(CONFIG_PCI) /* make sure that the address in the table is actually * on a VGA device's PCI BAR */ for_each_pci_dev(dev) { int i; if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) continue; for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { resource_size_t start, end; start = pci_resource_start(dev, i); if (start == 0) break; end = pci_resource_end(dev, i); if (screen_info.lfb_base >= start && screen_info.lfb_base < end) { found_bar = 1; } } } if (!found_bar) screen_info.lfb_base = 0; #endif } } if (screen_info.lfb_base) { screen_info.lfb_linelength = choose_value(info->stride, screen_info.lfb_linelength, OVERRIDE_STRIDE, info->flags); screen_info.lfb_width = choose_value(info->width, screen_info.lfb_width, OVERRIDE_WIDTH, info->flags); screen_info.lfb_height = choose_value(info->height, screen_info.lfb_height, OVERRIDE_HEIGHT, info->flags); if (screen_info.orig_video_isVGA == 0) screen_info.orig_video_isVGA = VIDEO_TYPE_EFI; } else { screen_info.lfb_linelength = 0; screen_info.lfb_width = 0; screen_info.lfb_height = 0; screen_info.orig_video_isVGA = 0; return 0; } printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x " "(%dx%d, stride %d)\n", id->ident, screen_info.lfb_base, screen_info.lfb_width, screen_info.lfb_height, screen_info.lfb_linelength); return 1; } #define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \ { \ efifb_set_system, \ name, \ { \ DMI_MATCH(DMI_BIOS_VENDOR, vendor), \ DMI_MATCH(DMI_PRODUCT_NAME, name) \ }, \ &efifb_dmi_list[enumid] \ } static const struct dmi_system_id efifb_dmi_system_table[] __initconst = { EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17), /* At least one of these two will be right; maybe both? */ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20), /* At least one of these two will be right; maybe both? */ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1), EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1), EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB), /* At least one of these two will be right; maybe both? */ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB), /* At least one of these two will be right; maybe both? */ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3), EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP), EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2), EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2), EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1), EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2), {}, }; __init void sysfb_apply_efi_quirks(void) { if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS)) dmi_check_system(efifb_dmi_system_table); } |