uvm_pdpolicy.h revision 1.9
1 1.9 riastrad /* $NetBSD: uvm_pdpolicy.h,v 1.9 2022/08/20 23:26:02 riastradh Exp $ */ 2 1.2 yamt 3 1.2 yamt /*- 4 1.2 yamt * Copyright (c)2005, 2006 YAMAMOTO Takashi, 5 1.2 yamt * All rights reserved. 6 1.2 yamt * 7 1.2 yamt * Redistribution and use in source and binary forms, with or without 8 1.2 yamt * modification, are permitted provided that the following conditions 9 1.2 yamt * are met: 10 1.2 yamt * 1. Redistributions of source code must retain the above copyright 11 1.2 yamt * notice, this list of conditions and the following disclaimer. 12 1.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 13 1.2 yamt * notice, this list of conditions and the following disclaimer in the 14 1.2 yamt * documentation and/or other materials provided with the distribution. 15 1.2 yamt * 16 1.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 1.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 1.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 1.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 1.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 1.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.2 yamt * SUCH DAMAGE. 27 1.2 yamt */ 28 1.2 yamt 29 1.2 yamt #ifndef _UVM_PDPOLICY_H_ 30 1.2 yamt #define _UVM_PDPOLICY_H_ 31 1.2 yamt 32 1.9 riastrad #include <sys/mutex.h> 33 1.9 riastrad #include <sys/stdint.h> 34 1.9 riastrad 35 1.9 riastrad #include <uvm/uvm_page.h> 36 1.9 riastrad 37 1.9 riastrad struct krwlock; 38 1.9 riastrad struct uvm_cpu; 39 1.9 riastrad struct vm_anon; 40 1.2 yamt struct vm_page; 41 1.2 yamt 42 1.2 yamt /* 43 1.2 yamt * these API is for uvm internal use only. 44 1.2 yamt * don't use them directly from outside of /sys/uvm. 45 1.2 yamt */ 46 1.2 yamt 47 1.6 ad void uvmpdpol_idle(struct uvm_cpu *); 48 1.2 yamt void uvmpdpol_init(void); 49 1.6 ad void uvmpdpol_init_cpu(struct uvm_cpu *); 50 1.2 yamt void uvmpdpol_reinit(void); 51 1.2 yamt void uvmpdpol_estimatepageable(int *, int *); 52 1.3 thorpej bool uvmpdpol_needsscan_p(void); 53 1.2 yamt 54 1.2 yamt void uvmpdpol_pageactivate(struct vm_page *); 55 1.2 yamt void uvmpdpol_pagedeactivate(struct vm_page *); 56 1.2 yamt void uvmpdpol_pagedequeue(struct vm_page *); 57 1.2 yamt void uvmpdpol_pageenqueue(struct vm_page *); 58 1.8 ad bool uvmpdpol_pageactivate_p(struct vm_page *); 59 1.3 thorpej bool uvmpdpol_pageisqueued_p(struct vm_page *); 60 1.6 ad void uvmpdpol_pagerealize(struct vm_page *); 61 1.2 yamt void uvmpdpol_anfree(struct vm_anon *); 62 1.2 yamt 63 1.2 yamt void uvmpdpol_tune(void); 64 1.2 yamt void uvmpdpol_scaninit(void); 65 1.5 ad void uvmpdpol_scanfini(void); 66 1.9 riastrad struct vm_page *uvmpdpol_selectvictim(struct krwlock **); 67 1.2 yamt void uvmpdpol_balancequeue(int); 68 1.2 yamt 69 1.2 yamt void uvmpdpol_sysctlsetup(void); 70 1.2 yamt 71 1.6 ad /* 72 1.6 ad * uvmpdpol_set_intent: set an intended state for the page, taking care not 73 1.6 ad * to overwrite any of the other flags. 74 1.6 ad */ 75 1.6 ad 76 1.6 ad static inline void 77 1.6 ad uvmpdpol_set_intent(struct vm_page *pg, uint32_t i) 78 1.6 ad { 79 1.6 ad 80 1.6 ad KASSERT(mutex_owned(&pg->interlock)); 81 1.6 ad pg->pqflags = PQ_INTENT_SET | (pg->pqflags & ~PQ_INTENT_MASK) | i; 82 1.6 ad } 83 1.6 ad 84 1.2 yamt #endif /* !_UVM_PDPOLICY_H_ */ 85
Indexes created Wed Sep 24 05:09:52 GMT 2025