1/* $NetBSD$ */ 2 3#ifdef __x86_64__ 4 5#ifndef XEN 6/* Must be defined before cpu.h */ 7#define MAXCPUS 256 8#endif 9 10#ifdef _KERNEL 11#include <machine/cpu.h> 12#endif 13 14#define _MACHINE amd64 15#define MACHINE "amd64" 16#define _MACHINE_ARCH x86_64 17#define MACHINE_ARCH "x86_64" 18#define MID_MACHINE MID_X86_64 19 20#define ALIGNED_POINTER(p,t) 1 21 22#define ALIGNBYTES32 (sizeof(int) - 1) 23#define ALIGN32(p) (((u_long)(p) + ALIGNBYTES32) &~ALIGNBYTES32) 24 25#define PGSHIFT 12 /* LOG2(NBPG) */ 26#define NBPG (1 << PGSHIFT) /* bytes/page */ 27#define PGOFSET (NBPG-1) /* byte offset into page */ 28#define NPTEPG (NBPG/(sizeof (pt_entry_t))) 29 30/* 31 * XXXfvdl change this (after bootstrap) to take # of bits from 32 * config info into account. 33 */ 34#define KERNBASE 0xffffffff80000000 /* start of kernel virtual space */ 35#define KERNTEXTOFF 0xffffffff80100000 /* start of kernel text */ 36#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) 37 38#define KERNTEXTOFF_HI 0xffffffff 39#define KERNTEXTOFF_LO 0x80100000 40 41#define KERNBASE_HI 0xffffffff 42#define KERNBASE_LO 0x80000000 43 44#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 45#define DEV_BSIZE (1 << DEV_BSHIFT) 46#define BLKDEV_IOSIZE 2048 47#ifndef MAXPHYS 48#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 49#endif 50 51#define SSIZE 1 /* initial stack size/NBPG */ 52#define SINCR 1 /* increment of stack/NBPG */ 53#ifdef DIAGNOSTIC 54#define UPAGES 4 /* pages of u-area (1 for redzone) */ 55#else 56#define UPAGES 3 /* pages of u-area */ 57#endif 58#define USPACE (UPAGES * NBPG) /* total size of u-area */ 59#define INTRSTACKSIZE 4096 60 61#ifndef MSGBUFSIZE 62#define MSGBUFSIZE 8*NBPG /* default message buffer size */ 63#endif 64 65/* 66 * Constants related to network buffer management. 67 * MCLBYTES must be no larger than NBPG (the software page size), and, 68 * on machines that exchange pages of input or output buffers with mbuf 69 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 70 * of the hardware page size. 71 */ 72#define MSIZE 512 /* size of an mbuf */ 73 74#ifndef MCLSHIFT 75#define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 76 /* 2K cluster can hold Ether frame */ 77#endif /* MCLSHIFT */ 78 79#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 80 81#ifndef NFS_RSIZE 82#define NFS_RSIZE 32768 83#endif 84#ifndef NFS_WSIZE 85#define NFS_WSIZE 32768 86#endif 87 88/* 89 * Minimum size of the kernel kmem_arena in PAGE_SIZE-sized 90 * logical pages. 91 * No enforced maximum on amd64. 92 */ 93#define NKMEMPAGES_MIN_DEFAULT ((8 * 1024 * 1024) >> PAGE_SHIFT) 94#define NKMEMPAGES_MAX_UNLIMITED 1 95 96/* 97 * XXXfvdl the PD* stuff is different from i386. 98 */ 99/* 100 * Mach derived conversion macros 101 */ 102#define x86_round_pdr(x) \ 103 ((((unsigned long)(x)) + (NBPD_L2 - 1)) & ~(NBPD_L2 - 1)) 104#define x86_trunc_pdr(x) ((unsigned long)(x) & ~(NBPD_L2 - 1)) 105#define x86_btod(x) ((unsigned long)(x) >> L2_SHIFT) 106#define x86_dtob(x) ((unsigned long)(x) << L2_SHIFT) 107#define x86_round_page(x) ((((unsigned long)(x)) + PGOFSET) & ~PGOFSET) 108#define x86_trunc_page(x) ((unsigned long)(x) & ~PGOFSET) 109#define x86_btop(x) ((unsigned long)(x) >> PGSHIFT) 110#define x86_ptob(x) ((unsigned long)(x) << PGSHIFT) 111 112#define btop(x) x86_btop(x) 113#define ptob(x) x86_ptob(x) 114 115#define mstohz(ms) ((ms + 0UL) * hz / 1000) 116 117#else /* __x86_64__ */ 118 119#include <i386/param.h> 120 121#endif /* __x86_64__ */ 122