| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| Luis R. Rodriguez | 8d152e7 | 2016-04-13 17:04:34 -0700 | [diff] [blame] | 2 | #include <linux/kernel.h> |
| 3 | #include <linux/init.h> |
| 4 | |
| 5 | #include <asm/setup.h> |
| 6 | #include <asm/bios_ebda.h> |
| 7 | |
| 8 | void __init x86_early_init_platform_quirks(void) |
| 9 | { |
| Dmitry Torokhov | 93ffa9a | 2016-12-09 12:57:38 -0800 | [diff] [blame] | 10 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_EXPECTED_PRESENT; |
| Luis R. Rodriguez | 8d152e7 | 2016-04-13 17:04:34 -0700 | [diff] [blame] | 11 | x86_platform.legacy.rtc = 1; |
| Jan Kiszka | e348cae | 2017-11-27 09:11:44 +0100 | [diff] [blame] | 12 | x86_platform.legacy.warm_reset = 1; |
| Ingo Molnar | edce212 | 2016-07-21 09:53:52 +0200 | [diff] [blame] | 13 | x86_platform.legacy.reserve_bios_regions = 0; |
| Luis R. Rodriguez | 80dfd83 | 2016-04-13 17:04:41 -0700 | [diff] [blame] | 14 | x86_platform.legacy.devices.pnpbios = 1; |
| Luis R. Rodriguez | 8d152e7 | 2016-04-13 17:04:34 -0700 | [diff] [blame] | 15 | |
| 16 | switch (boot_params.hdr.hardware_subarch) { |
| Luis R. Rodriguez | 1330e3b | 2016-04-13 17:04:36 -0700 | [diff] [blame] | 17 | case X86_SUBARCH_PC: |
| Ingo Molnar | edce212 | 2016-07-21 09:53:52 +0200 | [diff] [blame] | 18 | x86_platform.legacy.reserve_bios_regions = 1; |
| Luis R. Rodriguez | 1330e3b | 2016-04-13 17:04:36 -0700 | [diff] [blame] | 19 | break; |
| Luis R. Rodriguez | 8d152e7 | 2016-04-13 17:04:34 -0700 | [diff] [blame] | 20 | case X86_SUBARCH_XEN: |
| Dmitry Torokhov | 93ffa9a | 2016-12-09 12:57:38 -0800 | [diff] [blame] | 21 | x86_platform.legacy.devices.pnpbios = 0; |
| 22 | x86_platform.legacy.rtc = 0; |
| 23 | break; |
| Luis R. Rodriguez | 8d152e7 | 2016-04-13 17:04:34 -0700 | [diff] [blame] | 24 | case X86_SUBARCH_INTEL_MID: |
| Luis R. Rodriguez | a50b22a | 2016-04-13 17:04:46 -0700 | [diff] [blame] | 25 | case X86_SUBARCH_CE4100: |
| Luis R. Rodriguez | f6935b7 | 2016-04-13 17:04:45 -0700 | [diff] [blame] | 26 | x86_platform.legacy.devices.pnpbios = 0; |
| Luis R. Rodriguez | 8d152e7 | 2016-04-13 17:04:34 -0700 | [diff] [blame] | 27 | x86_platform.legacy.rtc = 0; |
| Dmitry Torokhov | 93ffa9a | 2016-12-09 12:57:38 -0800 | [diff] [blame] | 28 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_PLATFORM_ABSENT; |
| Luis R. Rodriguez | 8d152e7 | 2016-04-13 17:04:34 -0700 | [diff] [blame] | 29 | break; |
| 30 | } |
| 31 | |
| 32 | if (x86_platform.set_legacy_features) |
| 33 | x86_platform.set_legacy_features(); |
| 34 | } |
| Luis R. Rodriguez | 80dfd83 | 2016-04-13 17:04:41 -0700 | [diff] [blame] | 35 | |
| Rajneesh Bhardwaj | f79b1c5 | 2018-03-29 20:36:55 +0530 | [diff] [blame] | 36 | bool __init x86_pnpbios_disabled(void) |
| 37 | { |
| 38 | return x86_platform.legacy.devices.pnpbios == 0; |
| 39 | } |
| 40 | |
| Luis R. Rodriguez | 80dfd83 | 2016-04-13 17:04:41 -0700 | [diff] [blame] | 41 | #if defined(CONFIG_PNPBIOS) |
| 42 | bool __init arch_pnpbios_disabled(void) |
| 43 | { |
| Rajneesh Bhardwaj | f79b1c5 | 2018-03-29 20:36:55 +0530 | [diff] [blame] | 44 | return x86_pnpbios_disabled(); |
| Luis R. Rodriguez | 80dfd83 | 2016-04-13 17:04:41 -0700 | [diff] [blame] | 45 | } |
| 46 | #endif |