18d7e7a98SRuslan Bukin /*- 28d7e7a98SRuslan Bukin * Copyright (c) 1990 The Regents of the University of California. 38d7e7a98SRuslan Bukin * All rights reserved. 48d7e7a98SRuslan Bukin * 58d7e7a98SRuslan Bukin * This code is derived from software contributed to Berkeley by 68d7e7a98SRuslan Bukin * William Jolitz. 78d7e7a98SRuslan Bukin * 88d7e7a98SRuslan Bukin * Redistribution and use in source and binary forms, with or without 98d7e7a98SRuslan Bukin * modification, are permitted provided that the following conditions 108d7e7a98SRuslan Bukin * are met: 118d7e7a98SRuslan Bukin * 1. Redistributions of source code must retain the above copyright 128d7e7a98SRuslan Bukin * notice, this list of conditions and the following disclaimer. 138d7e7a98SRuslan Bukin * 2. Redistributions in binary form must reproduce the above copyright 148d7e7a98SRuslan Bukin * notice, this list of conditions and the following disclaimer in the 158d7e7a98SRuslan Bukin * documentation and/or other materials provided with the distribution. 168d7e7a98SRuslan Bukin * 178d7e7a98SRuslan Bukin * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 188d7e7a98SRuslan Bukin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 198d7e7a98SRuslan Bukin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 208d7e7a98SRuslan Bukin * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 218d7e7a98SRuslan Bukin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 228d7e7a98SRuslan Bukin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 238d7e7a98SRuslan Bukin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 248d7e7a98SRuslan Bukin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 258d7e7a98SRuslan Bukin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 268d7e7a98SRuslan Bukin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 278d7e7a98SRuslan Bukin * SUCH DAMAGE. 288d7e7a98SRuslan Bukin * 298d7e7a98SRuslan Bukin * from: @(#)param.h 5.8 (Berkeley) 6/28/91 308d7e7a98SRuslan Bukin * $FreeBSD$ 318d7e7a98SRuslan Bukin */ 328d7e7a98SRuslan Bukin 338d7e7a98SRuslan Bukin #ifndef _MACHINE_PARAM_H_ 348d7e7a98SRuslan Bukin #define _MACHINE_PARAM_H_ 358d7e7a98SRuslan Bukin 368d7e7a98SRuslan Bukin /* 378d7e7a98SRuslan Bukin * Machine dependent constants for RISC-V. 388d7e7a98SRuslan Bukin */ 398d7e7a98SRuslan Bukin 408d7e7a98SRuslan Bukin #include <machine/_align.h> 418d7e7a98SRuslan Bukin 428d7e7a98SRuslan Bukin #define STACKALIGNBYTES (16 - 1) 438d7e7a98SRuslan Bukin #define STACKALIGN(p) ((uint64_t)(p) & ~STACKALIGNBYTES) 448d7e7a98SRuslan Bukin 458d7e7a98SRuslan Bukin #ifndef MACHINE 468d7e7a98SRuslan Bukin #define MACHINE "riscv" 478d7e7a98SRuslan Bukin #endif 488d7e7a98SRuslan Bukin #ifndef MACHINE_ARCH 498d7e7a98SRuslan Bukin #define MACHINE_ARCH "riscv64" 508d7e7a98SRuslan Bukin #endif 518d7e7a98SRuslan Bukin 52*c3d326fdSMark Johnston #ifdef SMP 538d7e7a98SRuslan Bukin #ifndef MAXCPU 5417696c12SRuslan Bukin #define MAXCPU 16 558d7e7a98SRuslan Bukin #endif 568d7e7a98SRuslan Bukin #else 578d7e7a98SRuslan Bukin #define MAXCPU 1 58*c3d326fdSMark Johnston #endif 598d7e7a98SRuslan Bukin 608d7e7a98SRuslan Bukin #ifndef MAXMEMDOM 618d7e7a98SRuslan Bukin #define MAXMEMDOM 1 628d7e7a98SRuslan Bukin #endif 638d7e7a98SRuslan Bukin 648d7e7a98SRuslan Bukin #define ALIGNBYTES _ALIGNBYTES 658d7e7a98SRuslan Bukin #define ALIGN(p) _ALIGN(p) 668d7e7a98SRuslan Bukin /* 678d7e7a98SRuslan Bukin * ALIGNED_POINTER is a boolean macro that checks whether an address 688d7e7a98SRuslan Bukin * is valid to fetch data elements of type t from on this architecture. 698d7e7a98SRuslan Bukin * This does not reflect the optimal alignment, just the possibility 708d7e7a98SRuslan Bukin * (within reasonable limits). 718d7e7a98SRuslan Bukin */ 728d7e7a98SRuslan Bukin #define ALIGNED_POINTER(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0) 738d7e7a98SRuslan Bukin 748d7e7a98SRuslan Bukin /* 758d7e7a98SRuslan Bukin * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 768d7e7a98SRuslan Bukin * architecture. It should be used with appropriate caution. 778d7e7a98SRuslan Bukin */ 788d7e7a98SRuslan Bukin #define CACHE_LINE_SHIFT 6 798d7e7a98SRuslan Bukin #define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 808d7e7a98SRuslan Bukin 818d7e7a98SRuslan Bukin #define PAGE_SHIFT 12 828d7e7a98SRuslan Bukin #define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */ 838d7e7a98SRuslan Bukin #define PAGE_MASK (PAGE_SIZE - 1) 848d7e7a98SRuslan Bukin 85f6893f09SMark Johnston #define MAXPAGESIZES 3 /* maximum number of supported page sizes */ 868d7e7a98SRuslan Bukin 878d7e7a98SRuslan Bukin #ifndef KSTACK_PAGES 888d7e7a98SRuslan Bukin #define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */ 898d7e7a98SRuslan Bukin #endif 908d7e7a98SRuslan Bukin 918d7e7a98SRuslan Bukin #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ 928d7e7a98SRuslan Bukin #define PCPU_PAGES 1 938d7e7a98SRuslan Bukin 948d7e7a98SRuslan Bukin /* 958d7e7a98SRuslan Bukin * Mach derived conversion macros 968d7e7a98SRuslan Bukin */ 978d7e7a98SRuslan Bukin #define round_page(x) (((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK) 988d7e7a98SRuslan Bukin #define trunc_page(x) ((unsigned long)(x) & ~PAGE_MASK) 998d7e7a98SRuslan Bukin 1008d7e7a98SRuslan Bukin #define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) 1018d7e7a98SRuslan Bukin #define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) 1028d7e7a98SRuslan Bukin 1038d7e7a98SRuslan Bukin #define riscv_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) 1048d7e7a98SRuslan Bukin #define riscv_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) 1058d7e7a98SRuslan Bukin 1068d7e7a98SRuslan Bukin #define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024)) 1078d7e7a98SRuslan Bukin 1088d7e7a98SRuslan Bukin #endif /* !_MACHINE_PARAM_H_ */ 109