1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/kernel.h> 3 #include <linux/init.h> 4 #include <linux/pnp.h> 5 6 #include <asm/setup.h> 7 #include <asm/bios_ebda.h> 8 x86_early_init_platform_quirks(void)9void __init x86_early_init_platform_quirks(void) 10 { 11 x86_platform.legacy.i8042 = X86_LEGACY_I8042_EXPECTED_PRESENT; 12 x86_platform.legacy.rtc = 1; 13 x86_platform.legacy.warm_reset = 1; 14 x86_platform.legacy.reserve_bios_regions = 0; 15 x86_platform.legacy.devices.pnpbios = 1; 16 17 switch (boot_params.hdr.hardware_subarch) { 18 case X86_SUBARCH_PC: 19 x86_platform.legacy.reserve_bios_regions = 1; 20 break; 21 case X86_SUBARCH_XEN: 22 x86_platform.legacy.devices.pnpbios = 0; 23 x86_platform.legacy.rtc = 0; 24 break; 25 case X86_SUBARCH_INTEL_MID: 26 case X86_SUBARCH_CE4100: 27 x86_platform.legacy.devices.pnpbios = 0; 28 x86_platform.legacy.rtc = 0; 29 x86_platform.legacy.i8042 = X86_LEGACY_I8042_PLATFORM_ABSENT; 30 break; 31 } 32 33 if (x86_platform.set_legacy_features) 34 x86_platform.set_legacy_features(); 35 } 36 x86_pnpbios_disabled(void)37bool __init x86_pnpbios_disabled(void) 38 { 39 return x86_platform.legacy.devices.pnpbios == 0; 40 } 41 42 #if defined(CONFIG_PNPBIOS) arch_pnpbios_disabled(void)43bool __init arch_pnpbios_disabled(void) 44 { 45 return x86_pnpbios_disabled(); 46 } 47 #endif 48