diff options
Diffstat (limited to 'sys/amd64/include/param.h')
| -rw-r--r-- | sys/amd64/include/param.h | 63 |
1 files changed, 47 insertions, 16 deletions
diff --git a/sys/amd64/include/param.h b/sys/amd64/include/param.h index 595502228c32..355e95de5d0f 100644 --- a/sys/amd64/include/param.h +++ b/sys/amd64/include/param.h @@ -40,7 +40,7 @@ */ /* - * Machine dependent constants for the AMD64. + * Machine dependent constants for AMD64. */ /* @@ -55,7 +55,7 @@ * */ #ifndef _ALIGNBYTES -#define _ALIGNBYTES (sizeof(int) - 1) +#define _ALIGNBYTES (sizeof(long) - 1) #endif #ifndef _ALIGN #define _ALIGN(p) (((u_long)(p) + _ALIGNBYTES) &~ _ALIGNBYTES) @@ -83,40 +83,71 @@ #define MACHINE_ARCH "amd64" #endif -#ifdef SMP -#define MAXCPU 16 -#else #define MAXCPU 1 -#endif /* SMP */ #define ALIGNBYTES _ALIGNBYTES #define ALIGN(p) _ALIGN(p) #define ALIGNED_POINTER(p,t) _ALIGNED_POINTER((p),(t)) +/* Size of the level 1 page table units */ +#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) #define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */ #define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */ #define PAGE_MASK (PAGE_SIZE-1) -#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) +/* Size of the level 2 page directory units */ +#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t))) +#define PDRSHIFT 21 /* LOG2(NBPDR) */ +#define NBPDR (1<<PDRSHIFT) /* bytes/page dir */ +#define PDRMASK (NBPDR-1) +/* Size of the level 3 page directory pointer table units */ +#define NPDPEPG (PAGE_SIZE/(sizeof (pdp_entry_t))) +#define PDPSHIFT 30 /* LOG2(NBPDP) */ +#define NBPDP (1<<PDPSHIFT) /* bytes/page dir ptr table */ +#define PDPMASK (NBPDP-1) +/* Size of the level 4 page-map level-4 table units */ +#define NPML4EPG (PAGE_SIZE/(sizeof (pml4_entry_t))) +#define PML4SHIFT 39 /* LOG2(NBPML4T) */ +#define NBPML4T (1ul<<PML4SHIFT)/* bytes/page map lev4 table */ +#define PML4MASK (NBPML4T-1) -#define KERNBASE 0x0000000000000000LL /* start of kernel virtual */ -#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) +#define NKPML4E 1 /* addressable number of page tables/pde's */ +#define NKPDPE 1 /* addressable number of page tables/pde's */ +#define NPGPTD 4 + +#define NBPTD (NPGPTD<<PAGE_SHIFT) +#define NPDEPTD (NBPTD/(sizeof (pd_entry_t))) #define IOPAGES 2 /* pages of i/o permission bitmap */ -#ifndef KSTACK_PAGES -#define KSTACK_PAGES 2 /* pages of kstack (with pcb) */ -#endif +#define KSTACK_PAGES 4 /* pages of kstack (with pcb) */ #define UAREA_PAGES 1 /* holds struct user WITHOUT PCB (see def.) */ -#define KSTACK_GUARD 1 /* compile in the kstack guard page */ +#define KSTACK_GUARD 1 /* compile in the kstack guard page */ + +/* + * Ceiling on amount of swblock kva space, can be changed via + * the kern.maxswzone /boot/loader.conf variable. + */ +#ifndef VM_SWZONE_SIZE_MAX +#define VM_SWZONE_SIZE_MAX (32 * 1024 * 1024) +#endif + +/* + * Ceiling on size of buffer cache (really only effects write queueing, + * the VM page cache is not effected), can be changed via + * the kern.maxbcache /boot/loader.conf variable. + */ +#ifndef VM_BCACHE_SIZE_MAX +#define VM_BCACHE_SIZE_MAX (200 * 1024 * 1024) +#endif /* * Mach derived conversion macros */ #define round_page(x) ((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK)) #define trunc_page(x) ((unsigned long)(x) & ~(PAGE_MASK)) -#define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK) -#define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK) +#define trunc_2mpage(x) ((unsigned long)(x) & ~PDRMASK) +#define round_2mpage(x) ((((unsigned long)(x)) + PDRMASK) & ~PDRMASK) #define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) #define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) @@ -124,7 +155,7 @@ #define amd64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) #define amd64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) -#define pgtok(x) ((x) * (PAGE_SIZE / 1024)) +#define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024)) #endif /* !_MACHINE_PARAM_H_ */ #endif /* !_NO_NAMESPACE_POLLUTION */ |