1b86cbe23SFrançois Tigeot /* 2b86cbe23SFrançois Tigeot * Copyright (c) 2015 François Tigeot 3b86cbe23SFrançois Tigeot * All rights reserved. 4b86cbe23SFrançois Tigeot * 5b86cbe23SFrançois Tigeot * Redistribution and use in source and binary forms, with or without 6b86cbe23SFrançois Tigeot * modification, are permitted provided that the following conditions 7b86cbe23SFrançois Tigeot * are met: 8b86cbe23SFrançois Tigeot * 1. Redistributions of source code must retain the above copyright 9b86cbe23SFrançois Tigeot * notice unmodified, this list of conditions, and the following 10b86cbe23SFrançois Tigeot * disclaimer. 11b86cbe23SFrançois Tigeot * 2. Redistributions in binary form must reproduce the above copyright 12b86cbe23SFrançois Tigeot * notice, this list of conditions and the following disclaimer in the 13b86cbe23SFrançois Tigeot * documentation and/or other materials provided with the distribution. 14b86cbe23SFrançois Tigeot * 15b86cbe23SFrançois Tigeot * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16b86cbe23SFrançois Tigeot * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17b86cbe23SFrançois Tigeot * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18b86cbe23SFrançois Tigeot * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19b86cbe23SFrançois Tigeot * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20b86cbe23SFrançois Tigeot * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21b86cbe23SFrançois Tigeot * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22b86cbe23SFrançois Tigeot * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23b86cbe23SFrançois Tigeot * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24b86cbe23SFrançois Tigeot * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25b86cbe23SFrançois Tigeot */ 26b86cbe23SFrançois Tigeot 27b86cbe23SFrançois Tigeot #ifndef _ASM_CACHEFLUSH_H_ 28b86cbe23SFrançois Tigeot #define _ASM_CACHEFLUSH_H_ 29b86cbe23SFrançois Tigeot 30*c9fdb286SFrançois Tigeot static inline int set_memory_wc(unsigned long vaddr, int numpages) 31*c9fdb286SFrançois Tigeot { 32*c9fdb286SFrançois Tigeot pmap_change_attr(vaddr, numpages * PAGE_SIZE, PAT_WRITE_COMBINING); 33*c9fdb286SFrançois Tigeot return 0; 34*c9fdb286SFrançois Tigeot } 35*c9fdb286SFrançois Tigeot 36*c9fdb286SFrançois Tigeot static inline int set_memory_wb(unsigned long vaddr, int numpages) 37*c9fdb286SFrançois Tigeot { 38*c9fdb286SFrançois Tigeot pmap_change_attr(vaddr, numpages * PAGE_SIZE, PAT_WRITE_BACK); 39*c9fdb286SFrançois Tigeot return 0; 40*c9fdb286SFrançois Tigeot } 41*c9fdb286SFrançois Tigeot 42b86cbe23SFrançois Tigeot static inline int set_pages_uc(struct vm_page *page, int num_pages) 43b86cbe23SFrançois Tigeot { 44b86cbe23SFrançois Tigeot pmap_change_attr(PHYS_TO_DMAP(VM_PAGE_TO_PHYS(page)), 45b86cbe23SFrançois Tigeot num_pages << PAGE_SHIFT, PAT_UNCACHED); 46b86cbe23SFrançois Tigeot 47b86cbe23SFrançois Tigeot return 0; 48b86cbe23SFrançois Tigeot } 49b86cbe23SFrançois Tigeot 50b86cbe23SFrançois Tigeot #endif /* _ASM_CACHEFLUSH_H_ */ 51