1 1.15 riastrad /* $NetBSD: uvm_device.h,v 1.15 2021/12/18 16:31:53 riastradh Exp $ */ 2 1.1 mrg 3 1.1 mrg /* 4 1.1 mrg * Copyright (c) 1997 Charles D. Cranor and Washington University. 5 1.1 mrg * All rights reserved. 6 1.1 mrg * 7 1.1 mrg * Redistribution and use in source and binary forms, with or without 8 1.1 mrg * modification, are permitted provided that the following conditions 9 1.1 mrg * are met: 10 1.1 mrg * 1. Redistributions of source code must retain the above copyright 11 1.1 mrg * notice, this list of conditions and the following disclaimer. 12 1.1 mrg * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 mrg * notice, this list of conditions and the following disclaimer in the 14 1.1 mrg * documentation and/or other materials provided with the distribution. 15 1.1 mrg * 16 1.1 mrg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.1 mrg * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.1 mrg * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.1 mrg * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.1 mrg * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 1.1 mrg * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 1.1 mrg * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 1.1 mrg * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 1.1 mrg * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 1.1 mrg * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 1.3 mrg * 27 1.3 mrg * from: Id: uvm_device.h,v 1.1.2.2 1997/10/03 17:39:44 chuck Exp 28 1.1 mrg */ 29 1.1 mrg 30 1.4 perry #ifndef _UVM_UVM_DEVICE_H_ 31 1.4 perry #define _UVM_UVM_DEVICE_H_ 32 1.4 perry 33 1.15 riastrad #include <sys/types.h> 34 1.15 riastrad #include <sys/queue.h> 35 1.15 riastrad 36 1.15 riastrad #include <uvm/uvm_object.h> 37 1.15 riastrad #include <uvm/uvm_param.h> 38 1.15 riastrad #include <uvm/uvm_prot.h> 39 1.15 riastrad 40 1.1 mrg /* 41 1.1 mrg * uvm_device.h 42 1.1 mrg * 43 1.1 mrg * device handle into the VM system. 44 1.1 mrg */ 45 1.1 mrg 46 1.14 riastrad #include <sys/types.h> 47 1.14 riastrad 48 1.14 riastrad #include <sys/queue.h> 49 1.14 riastrad 50 1.14 riastrad #include <uvm/uvm_object.h> 51 1.14 riastrad 52 1.1 mrg /* 53 1.1 mrg * the uvm_device structure. object is put at the top of the data structure. 54 1.1 mrg * this allows: 55 1.1 mrg * (struct uvm_device *) == (struct uvm_object *) 56 1.1 mrg */ 57 1.1 mrg 58 1.1 mrg struct uvm_device { 59 1.5 mrg struct uvm_object u_obj; /* the actual VM object */ 60 1.5 mrg int u_flags; /* flags [LOCKED BY UDV_LOCK!] */ 61 1.5 mrg dev_t u_device; /* our device */ 62 1.5 mrg LIST_ENTRY(uvm_device) u_list; /* list of device objects */ 63 1.1 mrg }; 64 1.1 mrg 65 1.1 mrg /* 66 1.1 mrg * u_flags values 67 1.1 mrg */ 68 1.1 mrg 69 1.1 mrg #define UVM_DEVICE_HOLD 0x1 /* someone has a "hold" on it */ 70 1.1 mrg #define UVM_DEVICE_WANTED 0x2 /* someone wants to put a "hold" on */ 71 1.1 mrg 72 1.8 thorpej #ifdef _KERNEL 73 1.8 thorpej 74 1.14 riastrad #include <uvm/uvm_param.h> 75 1.14 riastrad #include <uvm/uvm_prot.h> 76 1.14 riastrad 77 1.1 mrg /* 78 1.1 mrg * prototypes 79 1.1 mrg */ 80 1.1 mrg 81 1.13 chs struct uvm_object *udv_attach(dev_t, vm_prot_t, voff_t, vsize_t); 82 1.8 thorpej 83 1.8 thorpej #endif /* _KERNEL */ 84 1.1 mrg 85 1.4 perry #endif /* _UVM_UVM_DEVICE_H_ */ 86
Indexes created Mon Sep 22 13:09:51 GMT 2025