Thomas Gleixner | 2874c5f | 2019-05-27 08:55:01 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 2 | /* |
| 3 | * Generic System Framebuffers on x86 |
| 4 | * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> |
| 5 | * |
| 6 | * EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com> |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * EFI Quirks |
| 11 | * Several EFI systems do not correctly advertise their boot framebuffers. |
| 12 | * Hence, we use this static table of known broken machines and fix up the |
| 13 | * information so framebuffer drivers can load corectly. |
| 14 | */ |
| 15 | |
| 16 | #include <linux/dmi.h> |
| 17 | #include <linux/err.h> |
Borislav Petkov | ad3bc25 | 2018-12-05 00:34:56 +0100 | [diff] [blame] | 18 | #include <linux/efi.h> |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 19 | #include <linux/init.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/mm.h> |
| 22 | #include <linux/pci.h> |
| 23 | #include <linux/screen_info.h> |
| 24 | #include <video/vga.h> |
Borislav Petkov | ad3bc25 | 2018-12-05 00:34:56 +0100 | [diff] [blame] | 25 | |
| 26 | #include <asm/efi.h> |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 27 | #include <asm/sysfb.h> |
| 28 | |
| 29 | enum { |
| 30 | OVERRIDE_NONE = 0x0, |
| 31 | OVERRIDE_BASE = 0x1, |
| 32 | OVERRIDE_STRIDE = 0x2, |
| 33 | OVERRIDE_HEIGHT = 0x4, |
| 34 | OVERRIDE_WIDTH = 0x8, |
| 35 | }; |
| 36 | |
| 37 | struct efifb_dmi_info efifb_dmi_list[] = { |
| 38 | [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, |
| 39 | [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */ |
| 40 | [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, |
| 41 | [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */ |
| 42 | [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, |
| 43 | [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE }, |
| 44 | [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE }, |
| 45 | [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE }, |
| 46 | [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE }, |
| 47 | [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, |
| 48 | [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, |
| 49 | [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, |
| 50 | [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, |
| 51 | [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, |
| 52 | [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, |
| 53 | /* 11" Macbook Air 3,1 passes the wrong stride */ |
| 54 | [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE }, |
| 55 | [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, |
| 56 | [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */ |
| 57 | [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, |
| 58 | [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, |
| 59 | [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, |
| 60 | [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, |
| 61 | [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, |
| 62 | [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, |
| 63 | [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, |
| 64 | [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE }, |
| 65 | [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, |
| 66 | [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, |
| 67 | [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE } |
| 68 | }; |
| 69 | |
Ard Biesheuvel | 21289ec | 2016-04-25 21:06:50 +0100 | [diff] [blame] | 70 | void efifb_setup_from_dmi(struct screen_info *si, const char *opt) |
| 71 | { |
| 72 | int i; |
| 73 | |
| 74 | for (i = 0; i < M_UNKNOWN; i++) { |
| 75 | if (efifb_dmi_list[i].base != 0 && |
| 76 | !strcmp(opt, efifb_dmi_list[i].optname)) { |
| 77 | si->lfb_base = efifb_dmi_list[i].base; |
| 78 | si->lfb_linelength = efifb_dmi_list[i].stride; |
| 79 | si->lfb_width = efifb_dmi_list[i].width; |
| 80 | si->lfb_height = efifb_dmi_list[i].height; |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 85 | #define choose_value(dmivalue, fwvalue, field, flags) ({ \ |
| 86 | typeof(fwvalue) _ret_ = fwvalue; \ |
| 87 | if ((flags) & (field)) \ |
| 88 | _ret_ = dmivalue; \ |
| 89 | else if ((fwvalue) == 0) \ |
| 90 | _ret_ = dmivalue; \ |
| 91 | _ret_; \ |
| 92 | }) |
| 93 | |
| 94 | static int __init efifb_set_system(const struct dmi_system_id *id) |
| 95 | { |
| 96 | struct efifb_dmi_info *info = id->driver_data; |
| 97 | |
| 98 | if (info->base == 0 && info->height == 0 && info->width == 0 && |
| 99 | info->stride == 0) |
| 100 | return 0; |
| 101 | |
| 102 | /* Trust the bootloader over the DMI tables */ |
| 103 | if (screen_info.lfb_base == 0) { |
| 104 | #if defined(CONFIG_PCI) |
| 105 | struct pci_dev *dev = NULL; |
| 106 | int found_bar = 0; |
| 107 | #endif |
| 108 | if (info->base) { |
| 109 | screen_info.lfb_base = choose_value(info->base, |
| 110 | screen_info.lfb_base, OVERRIDE_BASE, |
| 111 | info->flags); |
| 112 | |
| 113 | #if defined(CONFIG_PCI) |
| 114 | /* make sure that the address in the table is actually |
| 115 | * on a VGA device's PCI BAR */ |
| 116 | |
| 117 | for_each_pci_dev(dev) { |
| 118 | int i; |
| 119 | if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) |
| 120 | continue; |
| 121 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { |
| 122 | resource_size_t start, end; |
Wang YanQing | c10fcb1 | 2016-05-05 14:14:21 +0100 | [diff] [blame] | 123 | unsigned long flags; |
| 124 | |
| 125 | flags = pci_resource_flags(dev, i); |
| 126 | if (!(flags & IORESOURCE_MEM)) |
| 127 | continue; |
| 128 | |
| 129 | if (flags & IORESOURCE_UNSET) |
| 130 | continue; |
| 131 | |
| 132 | if (pci_resource_len(dev, i) == 0) |
| 133 | continue; |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 134 | |
| 135 | start = pci_resource_start(dev, i); |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 136 | end = pci_resource_end(dev, i); |
| 137 | if (screen_info.lfb_base >= start && |
| 138 | screen_info.lfb_base < end) { |
| 139 | found_bar = 1; |
Wang YanQing | c10fcb1 | 2016-05-05 14:14:21 +0100 | [diff] [blame] | 140 | break; |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 141 | } |
| 142 | } |
| 143 | } |
| 144 | if (!found_bar) |
| 145 | screen_info.lfb_base = 0; |
| 146 | #endif |
| 147 | } |
| 148 | } |
| 149 | if (screen_info.lfb_base) { |
| 150 | screen_info.lfb_linelength = choose_value(info->stride, |
| 151 | screen_info.lfb_linelength, OVERRIDE_STRIDE, |
| 152 | info->flags); |
| 153 | screen_info.lfb_width = choose_value(info->width, |
| 154 | screen_info.lfb_width, OVERRIDE_WIDTH, |
| 155 | info->flags); |
| 156 | screen_info.lfb_height = choose_value(info->height, |
| 157 | screen_info.lfb_height, OVERRIDE_HEIGHT, |
| 158 | info->flags); |
| 159 | if (screen_info.orig_video_isVGA == 0) |
| 160 | screen_info.orig_video_isVGA = VIDEO_TYPE_EFI; |
| 161 | } else { |
| 162 | screen_info.lfb_linelength = 0; |
| 163 | screen_info.lfb_width = 0; |
| 164 | screen_info.lfb_height = 0; |
| 165 | screen_info.orig_video_isVGA = 0; |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x " |
| 170 | "(%dx%d, stride %d)\n", id->ident, |
| 171 | screen_info.lfb_base, screen_info.lfb_width, |
| 172 | screen_info.lfb_height, screen_info.lfb_linelength); |
| 173 | |
| 174 | return 1; |
| 175 | } |
| 176 | |
| 177 | #define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \ |
| 178 | { \ |
| 179 | efifb_set_system, \ |
| 180 | name, \ |
| 181 | { \ |
| 182 | DMI_MATCH(DMI_BIOS_VENDOR, vendor), \ |
| 183 | DMI_MATCH(DMI_PRODUCT_NAME, name) \ |
| 184 | }, \ |
| 185 | &efifb_dmi_list[enumid] \ |
| 186 | } |
| 187 | |
| 188 | static const struct dmi_system_id efifb_dmi_system_table[] __initconst = { |
| 189 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17), |
| 190 | /* At least one of these two will be right; maybe both? */ |
| 191 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20), |
| 192 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20), |
| 193 | /* At least one of these two will be right; maybe both? */ |
| 194 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24), |
| 195 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24), |
| 196 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR), |
| 197 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1), |
| 198 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1), |
| 199 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1), |
| 200 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI), |
| 201 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1), |
| 202 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1), |
| 203 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB), |
| 204 | /* At least one of these two will be right; maybe both? */ |
| 205 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB), |
| 206 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB), |
| 207 | /* At least one of these two will be right; maybe both? */ |
| 208 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB), |
| 209 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB), |
| 210 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB), |
| 211 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1), |
| 212 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1), |
| 213 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1), |
| 214 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA), |
| 215 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3), |
| 216 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP), |
| 217 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2), |
| 218 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2), |
| 219 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2), |
| 220 | EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR), |
| 221 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR), |
| 222 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4), |
| 223 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1), |
| 224 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2), |
| 225 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3), |
| 226 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1), |
| 227 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2), |
| 228 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1), |
| 229 | EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2), |
| 230 | {}, |
| 231 | }; |
| 232 | |
Hans de Goede | d02f1aa | 2019-07-21 17:24:18 +0200 | [diff] [blame] | 233 | /* |
| 234 | * Some devices have a portrait LCD but advertise a landscape resolution (and |
| 235 | * pitch). We simply swap width and height for these devices so that we can |
| 236 | * correctly deal with some of them coming with multiple resolutions. |
| 237 | */ |
| 238 | static const struct dmi_system_id efifb_dmi_swap_width_height[] __initconst = { |
| 239 | { |
| 240 | /* |
| 241 | * Lenovo MIIX310-10ICR, only some batches have the troublesome |
| 242 | * 800x1280 portrait screen. Luckily the portrait version has |
| 243 | * its own BIOS version, so we match on that. |
| 244 | */ |
| 245 | .matches = { |
| 246 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| 247 | DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"), |
| 248 | DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1HCN44WW"), |
| 249 | }, |
| 250 | }, |
| 251 | { |
| 252 | /* Lenovo MIIX 320-10ICR with 800x1280 portrait screen */ |
| 253 | .matches = { |
| 254 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| 255 | DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, |
| 256 | "Lenovo MIIX 320-10ICR"), |
| 257 | }, |
| 258 | }, |
| 259 | { |
| 260 | /* Lenovo D330 with 800x1280 or 1200x1920 portrait screen */ |
| 261 | .matches = { |
| 262 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| 263 | DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, |
| 264 | "Lenovo ideapad D330-10IGM"), |
| 265 | }, |
| 266 | }, |
| 267 | {}, |
| 268 | }; |
| 269 | |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 270 | __init void sysfb_apply_efi_quirks(void) |
| 271 | { |
| 272 | if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || |
| 273 | !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS)) |
| 274 | dmi_check_system(efifb_dmi_system_table); |
Hans de Goede | d02f1aa | 2019-07-21 17:24:18 +0200 | [diff] [blame] | 275 | |
| 276 | if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI && |
| 277 | dmi_check_system(efifb_dmi_swap_width_height)) { |
| 278 | u16 temp = screen_info.lfb_width; |
| 279 | |
| 280 | screen_info.lfb_width = screen_info.lfb_height; |
| 281 | screen_info.lfb_height = temp; |
| 282 | screen_info.lfb_linelength = 4 * screen_info.lfb_width; |
| 283 | } |
David Herrmann | 2995e50 | 2013-08-02 14:05:23 +0200 | [diff] [blame] | 284 | } |