| #ifndef _ASM_X86_SETUP_H |
| #define _ASM_X86_SETUP_H |
| |
| #include <uapi/asm/setup.h> |
| |
| #define COMMAND_LINE_SIZE 2048 |
| |
| #include <linux/linkage.h> |
| |
| #ifdef __i386__ |
| |
| #include <linux/pfn.h> |
| /* |
| * Reserved space for vmalloc and iomap - defined in asm/page.h |
| */ |
| #define MAXMEM_PFN PFN_DOWN(MAXMEM) |
| #define MAX_NONPAE_PFN (1 << 20) |
| |
| #endif /* __i386__ */ |
| |
| #define PARAM_SIZE 4096 /* sizeof(struct boot_params) */ |
| |
| #define OLD_CL_MAGIC 0xA33F |
| #define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */ |
| #define NEW_CL_POINTER 0x228 /* Relative to real mode data */ |
| |
| #ifndef __ASSEMBLY__ |
| #include <asm/bootparam.h> |
| #include <asm/x86_init.h> |
| |
| extern u64 relocated_ramdisk; |
| |
| /* Interrupt control for vSMPowered x86_64 systems */ |
| #ifdef CONFIG_X86_64 |
| void vsmp_init(void); |
| #else |
| static inline void vsmp_init(void) { } |
| #endif |
| |
| void setup_bios_corruption_check(void); |
| |
| extern unsigned long saved_video_mode; |
| |
| extern void reserve_standard_io_resources(void); |
| extern void i386_reserve_resources(void); |
| extern void setup_default_timer_irq(void); |
| |
| #ifdef CONFIG_X86_INTEL_MID |
| extern void x86_intel_mid_early_setup(void); |
| #else |
| static inline void x86_intel_mid_early_setup(void) { } |
| #endif |
| |
| #ifdef CONFIG_X86_INTEL_CE |
| extern void x86_ce4100_early_setup(void); |
| #else |
| static inline void x86_ce4100_early_setup(void) { } |
| #endif |
| |
| #ifndef _SETUP |
| |
| /* |
| * This is set up by the setup-routine at boot-time |
| */ |
| extern struct boot_params boot_params; |
| |
| /* |
| * Do NOT EVER look at the BIOS memory size location. |
| * It does not work on many machines. |
| */ |
| #define LOWMEMSIZE() (0x9f000) |
| |
| /* exceedingly early brk-like allocator */ |
| extern unsigned long _brk_end; |
| void *extend_brk(size_t size, size_t align); |
| |
| /* |
| * Reserve space in the brk section. The name must be unique within |
| * the file, and somewhat descriptive. The size is in bytes. Must be |
| * used at file scope. |
| * |
| * (This uses a temp function to wrap the asm so we can pass it the |
| * size parameter; otherwise we wouldn't be able to. We can't use a |
| * "section" attribute on a normal variable because it always ends up |
| * being @progbits, which ends up allocating space in the vmlinux |
| * executable.) |
| */ |
| #define RESERVE_BRK(name,sz) \ |
| static void __section(.discard.text) __used notrace \ |
| __brk_reservation_fn_##name##__(void) { \ |
| asm volatile ( \ |
| ".pushsection .brk_reservation,\"aw\",@nobits;" \ |
| ".brk." #name ":" \ |
| " 1:.skip %c0;" \ |
| " .size .brk." #name ", . - 1b;" \ |
| " .popsection" \ |
| : : "i" (sz)); \ |
| } |
| |
| /* Helper for reserving space for arrays of things */ |
| #define RESERVE_BRK_ARRAY(type, name, entries) \ |
| type *name; \ |
| RESERVE_BRK(name, sizeof(type) * entries) |
| |
| extern void probe_roms(void); |
| #ifdef __i386__ |
| |
| asmlinkage void __init i386_start_kernel(void); |
| |
| #else |
| asmlinkage void __init x86_64_start_kernel(char *real_mode); |
| asmlinkage void __init x86_64_start_reservations(char *real_mode_data); |
| |
| #endif /* __i386__ */ |
| #endif /* _SETUP */ |
| #else |
| #define RESERVE_BRK(name,sz) \ |
| .pushsection .brk_reservation,"aw",@nobits; \ |
| .brk.name: \ |
| 1: .skip sz; \ |
| .size .brk.name,.-1b; \ |
| .popsection |
| #endif /* __ASSEMBLY__ */ |
| #endif /* _ASM_X86_SETUP_H */ |