1 /* 2 * Copyright 2004-2007, Axel Dörfler, axeld@pinc-software.de. 3 * Distributed under the terms of the MIT License. 4 * 5 * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved. 6 * Distributed under the terms of the NewOS License. 7 */ 8 9 10 #include "VMDeviceCache.h" 11 12 #include <slab/Slab.h> 13 14 15 status_t 16 VMDeviceCache::Init(addr_t baseAddress, uint32 allocationFlags) 17 { 18 fBaseAddress = baseAddress; 19 return VMCache::Init(CACHE_TYPE_DEVICE, allocationFlags); 20 } 21 22 23 status_t 24 VMDeviceCache::Read(off_t offset, const generic_io_vec *vecs, size_t count, 25 uint32 flags, generic_size_t *_numBytes) 26 { 27 panic("device_store: read called. Invalid!\n"); 28 return B_ERROR; 29 } 30 31 32 status_t 33 VMDeviceCache::Write(off_t offset, const generic_io_vec* vecs, size_t count, 34 uint32 flags, generic_size_t* _numBytes) 35 { 36 // no place to write, this will cause the page daemon to skip this store 37 return B_OK; 38 } 39 40 41 void 42 VMDeviceCache::DeleteObject() 43 { 44 object_cache_delete(gDeviceCacheObjectCache, this); 45 } 46