11965aae3c98397aad957412413c07e97b1bd4e64H. Peter Anvin#ifndef _ASM_X86_SETUP_H 21965aae3c98397aad957412413c07e97b1bd4e64H. Peter Anvin#define _ASM_X86_SETUP_H 3ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 4dbca1df48e89d8aa59254fdc10ef16c16e73d94eCyrill Gorcunov#ifdef __KERNEL__ 5dbca1df48e89d8aa59254fdc10ef16c16e73d94eCyrill Gorcunov 6ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#define COMMAND_LINE_SIZE 2048 7ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 8ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#ifdef __i386__ 9ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 10ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#include <linux/pfn.h> 11ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner/* 12ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner * Reserved space for vmalloc and iomap - defined in asm/page.h 13ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner */ 14ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#define MAXMEM_PFN PFN_DOWN(MAXMEM) 15ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#define MAX_NONPAE_PFN (1 << 20) 16ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 17fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin#endif /* __i386__ */ 18fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin 19fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin#define PARAM_SIZE 4096 /* sizeof(struct boot_params) */ 20ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 21ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#define OLD_CL_MAGIC 0xA33F 22fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin#define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */ 23ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#define NEW_CL_POINTER 0x228 /* Relative to real mode data */ 24ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 25ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#ifndef __ASSEMBLY__ 26ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#include <asm/bootparam.h> 27845b3944bbdf9e9247849bf037f27ff3a3f26d87Thomas Gleixner#include <asm/x86_init.h> 28ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 2915c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput/* Interrupt control for vSMPowered x86_64 systems */ 3070511134f61bd6e5eed19f767381f9fb3e762d49Ravikiran G Thirumalai#ifdef CONFIG_X86_64 3115c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajputvoid vsmp_init(void); 32129d8bc828e011bda0b7110a097bf3a0167f966eYinghai Lu#else 33129d8bc828e011bda0b7110a097bf3a0167f966eYinghai Lustatic inline void vsmp_init(void) { } 34129d8bc828e011bda0b7110a097bf3a0167f966eYinghai Lu#endif 3515c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput 3615c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajputvoid setup_bios_corruption_check(void); 3715c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput 3815c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput#ifdef CONFIG_X86_VISWS 3915c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajputextern void visws_early_detect(void); 4015c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput#else 4115c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajputstatic inline void visws_early_detect(void) { } 4215c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput#endif 4315c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput 4415c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajputextern unsigned long saved_video_mode; 4515c554439faedfa490389b31db893dc764245e88Jaswinder Singh Rajput 468fee697d990c54976c8dc167270633299e2515d2Thomas Gleixnerextern void reserve_standard_io_resources(void); 478fee697d990c54976c8dc167270633299e2515d2Thomas Gleixnerextern void i386_reserve_resources(void); 48845b3944bbdf9e9247849bf037f27ff3a3f26d87Thomas Gleixnerextern void setup_default_timer_irq(void); 498fee697d990c54976c8dc167270633299e2515d2Thomas Gleixner 50933b9463a0ef75da681747b2dac06c1754465372Alan Cox#ifdef CONFIG_X86_INTEL_MID 513f4110a48a749a1aa1c54fb807afb3f32f49711cThomas Gleixnerextern void x86_mrst_early_setup(void); 523f4110a48a749a1aa1c54fb807afb3f32f49711cThomas Gleixner#else 533f4110a48a749a1aa1c54fb807afb3f32f49711cThomas Gleixnerstatic inline void x86_mrst_early_setup(void) { } 543f4110a48a749a1aa1c54fb807afb3f32f49711cThomas Gleixner#endif 553f4110a48a749a1aa1c54fb807afb3f32f49711cThomas Gleixner 56c751e17b5371ad86cdde6cf5c0175e06f3ff0347Thomas Gleixner#ifdef CONFIG_X86_INTEL_CE 57c751e17b5371ad86cdde6cf5c0175e06f3ff0347Thomas Gleixnerextern void x86_ce4100_early_setup(void); 58c751e17b5371ad86cdde6cf5c0175e06f3ff0347Thomas Gleixner#else 59c751e17b5371ad86cdde6cf5c0175e06f3ff0347Thomas Gleixnerstatic inline void x86_ce4100_early_setup(void) { } 60c751e17b5371ad86cdde6cf5c0175e06f3ff0347Thomas Gleixner#endif 61c751e17b5371ad86cdde6cf5c0175e06f3ff0347Thomas Gleixner 62fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin#ifndef _SETUP 63fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin 64ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner/* 65ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner * This is set up by the setup-routine at boot-time 66ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner */ 67ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixnerextern struct boot_params boot_params; 68ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 69ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner/* 70ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner * Do NOT EVER look at the BIOS memory size location. 71ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner * It does not work on many machines. 72ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner */ 73ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#define LOWMEMSIZE() (0x9f000) 74ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 7593dbda7cbcd70a0bd1a99f39f44a9ccde8ab9040Jeremy Fitzhardinge/* exceedingly early brk-like allocator */ 7693dbda7cbcd70a0bd1a99f39f44a9ccde8ab9040Jeremy Fitzhardingeextern unsigned long _brk_end; 7793dbda7cbcd70a0bd1a99f39f44a9ccde8ab9040Jeremy Fitzhardingevoid *extend_brk(size_t size, size_t align); 7893dbda7cbcd70a0bd1a99f39f44a9ccde8ab9040Jeremy Fitzhardinge 79796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge/* 80796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * Reserve space in the brk section. The name must be unique within 81796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * the file, and somewhat descriptive. The size is in bytes. Must be 82796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * used at file scope. 83796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * 84796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * (This uses a temp function to wrap the asm so we can pass it the 85796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * size parameter; otherwise we wouldn't be able to. We can't use a 86796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * "section" attribute on a normal variable because it always ends up 87796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * being @progbits, which ends up allocating space in the vmlinux 88796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge * executable.) 89796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge */ 90796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge#define RESERVE_BRK(name,sz) \ 912895cd2ab81dfb7bc22637bc110857db44a30b4aSteven Rostedt static void __section(.discard.text) __used notrace \ 92796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge __brk_reservation_fn_##name##__(void) { \ 93796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge asm volatile ( \ 94796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge ".pushsection .brk_reservation,\"aw\",@nobits;" \ 950b1c723d0bd199300a1a2de57a46000d17577498Jeremy Fitzhardinge ".brk." #name ":" \ 96796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge " 1:.skip %c0;" \ 970b1c723d0bd199300a1a2de57a46000d17577498Jeremy Fitzhardinge " .size .brk." #name ", . - 1b;" \ 98796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge " .popsection" \ 99796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge : : "i" (sz)); \ 100796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge } 101796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge 102161b0275e2311b8bd9609d5f32e2b703cf5d70a8Jeremy Fitzhardinge/* Helper for reserving space for arrays of things */ 103161b0275e2311b8bd9609d5f32e2b703cf5d70a8Jeremy Fitzhardinge#define RESERVE_BRK_ARRAY(type, name, entries) \ 104161b0275e2311b8bd9609d5f32e2b703cf5d70a8Jeremy Fitzhardinge type *name; \ 105161b0275e2311b8bd9609d5f32e2b703cf5d70a8Jeremy Fitzhardinge RESERVE_BRK(name, sizeof(type) * entries) 106161b0275e2311b8bd9609d5f32e2b703cf5d70a8Jeremy Fitzhardinge 1075d94e81f69d4b1d1102d3ab557ce0a817c11fbbbDan Williamsextern void probe_roms(void); 10895a71a45c250177854f7c530810c88a8a19a443bYinghai Lu#ifdef __i386__ 10995a71a45c250177854f7c530810c88a8a19a443bYinghai Lu 110f0d43100f13be0fa5bf52741d7084bb27f00e621Yinghai Luvoid __init i386_start_kernel(void); 111746ef0cd0c7190d570c65b8e39a4ac67550ae43aGlauber de Oliveira Costa 112102e3b8d3f3d5556c60f9ab6d92108649b68edc8Jeremy Fitzhardinge#else 113102e3b8d3f3d5556c60f9ab6d92108649b68edc8Jeremy Fitzhardingevoid __init x86_64_start_kernel(char *real_mode); 114f97013fd8f17120182aa247f360e4d2069a9db9cJeremy Fitzhardingevoid __init x86_64_start_reservations(char *real_mode_data); 115f97013fd8f17120182aa247f360e4d2069a9db9cJeremy Fitzhardinge 116ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#endif /* __i386__ */ 117fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin#endif /* _SETUP */ 118796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge#else 119796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge#define RESERVE_BRK(name,sz) \ 120796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge .pushsection .brk_reservation,"aw",@nobits; \ 1210b1c723d0bd199300a1a2de57a46000d17577498Jeremy Fitzhardinge.brk.name: \ 122796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge1: .skip sz; \ 1230b1c723d0bd199300a1a2de57a46000d17577498Jeremy Fitzhardinge .size .brk.name,.-1b; \ 124796216a57fe45c04adc35bda1f0782efec78a713Jeremy Fitzhardinge .popsection 125ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#endif /* __ASSEMBLY__ */ 126ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner#endif /* __KERNEL__ */ 127ef685298b4b3dead1efa1d47cd27ced0f2673254Thomas Gleixner 1281965aae3c98397aad957412413c07e97b1bd4e64H. Peter Anvin#endif /* _ASM_X86_SETUP_H */ 129