1/* $NetBSD: pdsim.h,v 1.1 2006/09/30 08:47:39 yamt Exp $ */ 2 3/*- 4 * Copyright (c)2006 YAMAMOTO Takashi, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/null.h> 30#include <sys/hash.h> 31#include <sys/queue.h> 32#include <assert.h> 33#include <stdio.h> 34#include <stdlib.h> 35#include <string.h> 36#include <stdarg.h> 37#include <inttypes.h> 38 39#define PAGE_SHIFT 12 40#define PAGE_SIZE (1 << PAGE_SHIFT) 41#define PAGE_MASK (PAGE_SIZE - 1) 42 43#define PDPOL_EVCNT_DEFINE(name) int pdpol_evcnt_##name = 0; 44#define PDPOL_EVCNT_INCR(ev) pdpol_evcnt_##ev++ 45 46#define TRUE 1 47#define FALSE 0 48typedef int boolean_t; 49typedef off_t voff_t; 50 51struct vm_page; 52struct vm_anon; 53 54struct uvm_object; 55struct vm_anon { 56 struct vm_page *an_page; /* XXX */ 57}; 58 59struct vm_page { 60 TAILQ_ENTRY(vm_page) pageq; 61 struct uvm_object *uobject; 62 off_t offset; 63 int pqflags; 64#define PQ_SWAPBACKED (PQ_ANON|PQ_AOBJ) 65#define PQ_FREE 0x0001 66#define PQ_ANON 0x0002 67#define PQ_AOBJ 0x0004 68#define PQ_PRIVATE1 0x0100 69#define PQ_PRIVATE2 0x0200 70#define PQ_PRIVATE3 0x0400 71#define PQ_PRIVATE4 0x0800 72#define PQ_PRIVATE5 0x1000 73#define PQ_PRIVATE6 0x2000 74#define PQ_PRIVATE7 0x4000 75#define PQ_PRIVATE8 0x8000 76 77 int _mdflags; 78#define MDPG_REFERENCED 1 79#define MDPG_SPECULATIVE 2 80 81 /* dummy members */ 82 struct vm_anon *uanon; 83 int wire_count; 84 int flags; 85#define PG_BUSY 1 86}; 87 88TAILQ_HEAD(pglist, vm_page); 89 90boolean_t pmap_clear_reference(struct vm_page *); 91boolean_t pmap_is_referenced(struct vm_page *); 92 93struct uvmexp { 94 int npages; 95 int pdscans; 96 int freetarg; 97 int free; 98 99 /* XXX */ 100 int filepages; 101 int execpages; 102 int anonpages; 103 int pddeact; 104 int pdreact; 105}; 106extern struct uvmexp uvmexp; 107 108#define UVM_LOCK_ASSERT_PAGEQ() /* nothing */ 109#define KASSERT(x) assert(x) 110 111static void panic(const char *, ...) __unused; 112static void 113panic(const char *fmt, ...) 114{ 115 va_list ap; 116 117 va_start(ap, fmt); 118 vfprintf(stderr, fmt, ap); 119 va_end(ap); 120 fprintf(stderr, "\n"); 121 abort(); 122} 123 124#define MAXID 102400 125 126struct uvm_object { 127 struct vm_page *pages[MAXID]; 128}; 129 130struct uvm_pctparam { 131 int pct_pct; 132}; 133#define UVM_PCTPARAM_APPLY(pct, x) \ 134 (((x) * (pct)->pct_pct) / 100) 135#define uvm_pctparam_init(pct, x, f) (pct)->pct_pct = x 136 137#define UVM_OBJ_IS_VTEXT(o) FALSE 138#define UVM_OBJ_IS_AOBJ(o) FALSE 139#define UVM_OBJ_IS_VNODE(o) TRUE 140 141#define uvm_swapisfull() TRUE 142#define uvmpd_trydropswap(p) (panic("dropswap"), 0) 143 144#define MAX(a,b) (((a) > (b)) ? (a) : (b)) 145#define MIN(a,b) (((a) < (b)) ? (a) : (b)) 146 147#if ((__STDC_VERSION__ - 0) >= 199901L) 148#define WARN(...) fprintf(stderr, __VA_ARGS__) 149#else /* ((__STDC_VERSION__ - 0) >= 199901L) */ 150#define WARN(a...) fprintf(stderr, a) 151#endif /* ((__STDC_VERSION__ - 0) >= 199901L) */ 152 153#if defined(DEBUG) 154#if ((__STDC_VERSION__ - 0) >= 199901L) 155#define DPRINTF(...) printf(__VA_ARGS__) 156#else /* ((__STDC_VERSION__ - 0) >= 199901L) */ 157#define DPRINTF(a...) printf(a) /* GCC */ 158#endif /* ((__STDC_VERSION__ - 0) >= 199901L) */ 159#define dump(s) pdsim_dump(s) 160void dump(const char *); 161#else 162#if ((__STDC_VERSION__ - 0) >= 199901L) 163#define DPRINTF(...) /* nothing */ 164#else /* ((__STDC_VERSION__ - 0) >= 199901L) */ 165#define DPRINTF(a...) /* nothing */ /* GCC */ 166#endif /* ((__STDC_VERSION__ - 0) >= 199901L) */ 167#define dump(s) /* nothing */ 168#endif 169 170#include "uvm/uvm_pdpolicy.h" 171