H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_SETUP_H |
| 2 | #define _ASM_X86_SETUP_H |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 3 | |
Cyrill Gorcunov | dbca1df | 2009-01-14 23:37:50 +0300 | [diff] [blame] | 4 | #ifdef __KERNEL__ |
| 5 | |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 6 | #define COMMAND_LINE_SIZE 2048 |
| 7 | |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 8 | #ifdef __i386__ |
| 9 | |
| 10 | #include <linux/pfn.h> |
| 11 | /* |
| 12 | * Reserved space for vmalloc and iomap - defined in asm/page.h |
| 13 | */ |
| 14 | #define MAXMEM_PFN PFN_DOWN(MAXMEM) |
| 15 | #define MAX_NONPAE_PFN (1 << 20) |
| 16 | |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 17 | #endif /* __i386__ */ |
| 18 | |
H. Peter Anvin | fa76dab | 2007-10-23 22:37:25 +0200 | [diff] [blame] | 19 | #define PARAM_SIZE 4096 /* sizeof(struct boot_params) */ |
| 20 | |
| 21 | #define OLD_CL_MAGIC 0xA33F |
| 22 | #define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */ |
| 23 | #define NEW_CL_POINTER 0x228 /* Relative to real mode data */ |
| 24 | |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 25 | #ifndef __ASSEMBLY__ |
| 26 | #include <asm/bootparam.h> |
Thomas Gleixner | 845b394 | 2009-08-19 15:37:03 +0200 | [diff] [blame] | 27 | #include <asm/x86_init.h> |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 28 | |
Jaswinder Singh Rajput | 15c5544 | 2009-02-02 21:59:19 +0530 | [diff] [blame] | 29 | /* Interrupt control for vSMPowered x86_64 systems */ |
Ravikiran G Thirumalai | 7051113 | 2009-03-23 23:14:29 -0700 | [diff] [blame] | 30 | #ifdef CONFIG_X86_64 |
Jaswinder Singh Rajput | 15c5544 | 2009-02-02 21:59:19 +0530 | [diff] [blame] | 31 | void vsmp_init(void); |
Yinghai Lu | 129d8bc | 2009-02-25 21:20:50 -0800 | [diff] [blame] | 32 | #else |
| 33 | static inline void vsmp_init(void) { } |
| 34 | #endif |
Jaswinder Singh Rajput | 15c5544 | 2009-02-02 21:59:19 +0530 | [diff] [blame] | 35 | |
| 36 | void setup_bios_corruption_check(void); |
| 37 | |
| 38 | #ifdef CONFIG_X86_VISWS |
| 39 | extern void visws_early_detect(void); |
Jaswinder Singh Rajput | 15c5544 | 2009-02-02 21:59:19 +0530 | [diff] [blame] | 40 | #else |
| 41 | static inline void visws_early_detect(void) { } |
Jaswinder Singh Rajput | 15c5544 | 2009-02-02 21:59:19 +0530 | [diff] [blame] | 42 | #endif |
| 43 | |
Jaswinder Singh Rajput | 15c5544 | 2009-02-02 21:59:19 +0530 | [diff] [blame] | 44 | extern unsigned long saved_video_mode; |
| 45 | |
Thomas Gleixner | 8fee697 | 2009-08-19 14:55:50 +0200 | [diff] [blame] | 46 | extern void reserve_standard_io_resources(void); |
| 47 | extern void i386_reserve_resources(void); |
Thomas Gleixner | 845b394 | 2009-08-19 15:37:03 +0200 | [diff] [blame] | 48 | extern void setup_default_timer_irq(void); |
Thomas Gleixner | 8fee697 | 2009-08-19 14:55:50 +0200 | [diff] [blame] | 49 | |
Thomas Gleixner | 3f4110a | 2009-08-29 14:54:20 +0200 | [diff] [blame] | 50 | #ifdef CONFIG_X86_MRST |
| 51 | extern void x86_mrst_early_setup(void); |
| 52 | #else |
| 53 | static inline void x86_mrst_early_setup(void) { } |
| 54 | #endif |
| 55 | |
H. Peter Anvin | fa76dab | 2007-10-23 22:37:25 +0200 | [diff] [blame] | 56 | #ifndef _SETUP |
| 57 | |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 58 | /* |
| 59 | * This is set up by the setup-routine at boot-time |
| 60 | */ |
| 61 | extern struct boot_params boot_params; |
| 62 | |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 63 | /* |
| 64 | * Do NOT EVER look at the BIOS memory size location. |
| 65 | * It does not work on many machines. |
| 66 | */ |
| 67 | #define LOWMEMSIZE() (0x9f000) |
| 68 | |
Jeremy Fitzhardinge | 93dbda7 | 2009-02-26 17:35:44 -0800 | [diff] [blame] | 69 | /* exceedingly early brk-like allocator */ |
| 70 | extern unsigned long _brk_end; |
| 71 | void *extend_brk(size_t size, size_t align); |
| 72 | |
Jeremy Fitzhardinge | 796216a | 2009-03-12 16:09:49 -0700 | [diff] [blame] | 73 | /* |
| 74 | * Reserve space in the brk section. The name must be unique within |
| 75 | * the file, and somewhat descriptive. The size is in bytes. Must be |
| 76 | * used at file scope. |
| 77 | * |
| 78 | * (This uses a temp function to wrap the asm so we can pass it the |
| 79 | * size parameter; otherwise we wouldn't be able to. We can't use a |
| 80 | * "section" attribute on a normal variable because it always ends up |
| 81 | * being @progbits, which ends up allocating space in the vmlinux |
| 82 | * executable.) |
| 83 | */ |
| 84 | #define RESERVE_BRK(name,sz) \ |
Jeremy Fitzhardinge | c7f52cd | 2010-07-22 22:58:01 -0700 | [diff] [blame] | 85 | static void __section(.discard.text) __used \ |
Jeremy Fitzhardinge | 796216a | 2009-03-12 16:09:49 -0700 | [diff] [blame] | 86 | __brk_reservation_fn_##name##__(void) { \ |
| 87 | asm volatile ( \ |
| 88 | ".pushsection .brk_reservation,\"aw\",@nobits;" \ |
Jeremy Fitzhardinge | 0b1c723 | 2009-03-14 23:19:38 -0700 | [diff] [blame] | 89 | ".brk." #name ":" \ |
Jeremy Fitzhardinge | 796216a | 2009-03-12 16:09:49 -0700 | [diff] [blame] | 90 | " 1:.skip %c0;" \ |
Jeremy Fitzhardinge | 0b1c723 | 2009-03-14 23:19:38 -0700 | [diff] [blame] | 91 | " .size .brk." #name ", . - 1b;" \ |
Jeremy Fitzhardinge | 796216a | 2009-03-12 16:09:49 -0700 | [diff] [blame] | 92 | " .popsection" \ |
| 93 | : : "i" (sz)); \ |
| 94 | } |
| 95 | |
Yinghai Lu | 95a71a4 | 2008-06-18 17:27:08 -0700 | [diff] [blame] | 96 | #ifdef __i386__ |
| 97 | |
Yinghai Lu | f0d4310 | 2008-05-29 12:56:36 -0700 | [diff] [blame] | 98 | void __init i386_start_kernel(void); |
Yinghai Lu | a9c1182 | 2008-06-21 15:39:41 -0700 | [diff] [blame] | 99 | extern void probe_roms(void); |
Yinghai Lu | f0d4310 | 2008-05-29 12:56:36 -0700 | [diff] [blame] | 100 | |
Jeremy Fitzhardinge | 102e3b8 | 2008-06-25 00:19:09 -0400 | [diff] [blame] | 101 | #else |
| 102 | void __init x86_64_start_kernel(char *real_mode); |
Jeremy Fitzhardinge | f97013f | 2008-06-25 00:19:18 -0400 | [diff] [blame] | 103 | void __init x86_64_start_reservations(char *real_mode_data); |
| 104 | |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 105 | #endif /* __i386__ */ |
H. Peter Anvin | fa76dab | 2007-10-23 22:37:25 +0200 | [diff] [blame] | 106 | #endif /* _SETUP */ |
Jeremy Fitzhardinge | 796216a | 2009-03-12 16:09:49 -0700 | [diff] [blame] | 107 | #else |
| 108 | #define RESERVE_BRK(name,sz) \ |
| 109 | .pushsection .brk_reservation,"aw",@nobits; \ |
Jeremy Fitzhardinge | 0b1c723 | 2009-03-14 23:19:38 -0700 | [diff] [blame] | 110 | .brk.name: \ |
Jeremy Fitzhardinge | 796216a | 2009-03-12 16:09:49 -0700 | [diff] [blame] | 111 | 1: .skip sz; \ |
Jeremy Fitzhardinge | 0b1c723 | 2009-03-14 23:19:38 -0700 | [diff] [blame] | 112 | .size .brk.name,.-1b; \ |
Jeremy Fitzhardinge | 796216a | 2009-03-12 16:09:49 -0700 | [diff] [blame] | 113 | .popsection |
Thomas Gleixner | ef68529 | 2007-10-23 22:37:24 +0200 | [diff] [blame] | 114 | #endif /* __ASSEMBLY__ */ |
| 115 | #endif /* __KERNEL__ */ |
| 116 | |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 117 | #endif /* _ASM_X86_SETUP_H */ |