| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 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 | { |
| 10 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_EXPECTED_PRESENT; |
| 11 | x86_platform.legacy.rtc = 1; |
| 12 | x86_platform.legacy.warm_reset = 1; |
| 13 | x86_platform.legacy.reserve_bios_regions = 0; |
| 14 | x86_platform.legacy.devices.pnpbios = 1; |
| 15 | |
| 16 | switch (boot_params.hdr.hardware_subarch) { |
| 17 | case X86_SUBARCH_PC: |
| 18 | x86_platform.legacy.reserve_bios_regions = 1; |
| 19 | break; |
| 20 | case X86_SUBARCH_XEN: |
| 21 | x86_platform.legacy.devices.pnpbios = 0; |
| 22 | x86_platform.legacy.rtc = 0; |
| 23 | break; |
| 24 | case X86_SUBARCH_INTEL_MID: |
| 25 | case X86_SUBARCH_CE4100: |
| 26 | x86_platform.legacy.devices.pnpbios = 0; |
| 27 | x86_platform.legacy.rtc = 0; |
| 28 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_PLATFORM_ABSENT; |
| 29 | break; |
| 30 | } |
| 31 | |
| 32 | if (x86_platform.set_legacy_features) |
| 33 | x86_platform.set_legacy_features(); |
| 34 | } |
| 35 | |
| 36 | bool __init x86_pnpbios_disabled(void) |
| 37 | { |
| 38 | return x86_platform.legacy.devices.pnpbios == 0; |
| 39 | } |
| 40 | |
| 41 | #if defined(CONFIG_PNPBIOS) |
| 42 | bool __init arch_pnpbios_disabled(void) |
| 43 | { |
| 44 | return x86_pnpbios_disabled(); |
| 45 | } |
| 46 | #endif |