/* $NetBSD: param.h,v 1.30.4.1 2019/12/08 13:23:23 martin Exp $ */ #ifdef __x86_64__ #ifndef XENPV /* Must be defined before cpu.h */ #define MAXCPUS 256 #endif #ifdef _KERNEL #include #if defined(_KERNEL_OPT) #include "opt_kasan.h" #include "opt_kleak.h" #endif #endif #define _MACHINE amd64 #define MACHINE "amd64" #define _MACHINE_ARCH x86_64 #define MACHINE_ARCH "x86_64" #define MID_MACHINE MID_X86_64 #define ALIGNED_POINTER(p,t) 1 #define ALIGNED_POINTER_LOAD(q,p,t) memcpy((q), (p), sizeof(t)) /* * Align stack as required by AMD64 System V ABI. This is because * (1) we want to bypass libc/csu in LLDB, and * (2) rtld in glibc >= 2.23 for Linux/x86_64 requires it. */ #define STACK_ALIGNBYTES (16 - 1) #define ALIGNBYTES32 (sizeof(int) - 1) #define ALIGN32(p) (((u_long)(p) + ALIGNBYTES32) &~ALIGNBYTES32) #define PGSHIFT 12 /* LOG2(NBPG) */ #define NBPG (1 << PGSHIFT) /* bytes/page */ #define PGOFSET (NBPG-1) /* byte offset into page */ #define NPTEPG (NBPG/(sizeof (pt_entry_t))) #define MAXIOMEM 0xffffffffffff /* * Maximum physical memory supported by the implementation. */ #define MAXPHYSMEM 0x100000000000ULL /* 16TB */ /* * XXXfvdl change this (after bootstrap) to take # of bits from * config info into account. */ #define KERNBASE 0xffffffff80000000 /* start of kernel virtual space */ #define KERNTEXTOFF 0xffffffff80200000 /* start of kernel text */ #define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) #define KERNTEXTOFF_HI 0xffffffff #define KERNTEXTOFF_LO 0x80200000 #define KERNBASE_HI 0xffffffff #define KERNBASE_LO 0x80000000 #define SSIZE 1 /* initial stack size/NBPG */ #define SINCR 1 /* increment of stack/NBPG */ #if defined(KASAN) || defined(KLEAK) #define UPAGES 8 #elif defined(DIAGNOSTIC) #define UPAGES 5 /* pages of u-area (1 for redzone) */ #else #define UPAGES 4 /* pages of u-area */ #endif #define USPACE (UPAGES * NBPG) /* total size of u-area */ #ifndef MSGBUFSIZE #define MSGBUFSIZE (16*NBPG) /* default message buffer size */ #endif /* * Constants related to network buffer management. * MCLBYTES must be no larger than NBPG (the software page size), and, * on machines that exchange pages of input or output buffers with mbuf * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple * of the hardware page size. */ #define MSIZE 512 /* size of an mbuf */ #ifndef MCLSHIFT #define MCLSHIFT 11 /* convert bytes to m_buf clusters */ /* 2K cluster can hold Ether frame */ #endif /* MCLSHIFT */ #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ #ifndef NFS_RSIZE #define NFS_RSIZE 32768 #endif #ifndef NFS_WSIZE #define NFS_WSIZE 32768 #endif /* * Minimum size of the kernel kmem_arena in PAGE_SIZE-sized * logical pages. * No enforced maximum on amd64. */ #define NKMEMPAGES_MIN_DEFAULT ((8 * 1024 * 1024) >> PAGE_SHIFT) #define NKMEMPAGES_MAX_UNLIMITED 1 /* * XXXfvdl the PD* stuff is different from i386. */ /* * Mach derived conversion macros */ #define x86_round_pdr(x) \ ((((unsigned long)(x)) + (NBPD_L2 - 1)) & ~(NBPD_L2 - 1)) #define x86_trunc_pdr(x) ((unsigned long)(x) & ~(NBPD_L2 - 1)) #define x86_btod(x) ((unsigned long)(x) >> L2_SHIFT) #define x86_dtob(x) ((unsigned long)(x) << L2_SHIFT) #define x86_round_page(x) ((((unsigned long)(x)) + PGOFSET) & ~PGOFSET) #define x86_trunc_page(x) ((unsigned long)(x) & ~PGOFSET) #define x86_btop(x) ((unsigned long)(x) >> PGSHIFT) #define x86_ptob(x) ((unsigned long)(x) << PGSHIFT) #define btop(x) x86_btop(x) #define ptob(x) x86_ptob(x) #define mstohz(ms) ((ms + 0UL) * hz / 1000) #else /* __x86_64__ */ #include #endif /* __x86_64__ */