1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 1994, 1995, 1996 by Ralf Baechle 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun #ifndef _ASM_CACHECTL 7*4882a593Smuzhiyun #define _ASM_CACHECTL 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun /* 10*4882a593Smuzhiyun * Options for cacheflush system call 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun #define ICACHE (1<<0) /* flush instruction cache */ 13*4882a593Smuzhiyun #define DCACHE (1<<1) /* writeback and flush data cache */ 14*4882a593Smuzhiyun #define BCACHE (ICACHE|DCACHE) /* flush both caches */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun /* 17*4882a593Smuzhiyun * Caching modes for the cachectl(2) call 18*4882a593Smuzhiyun * 19*4882a593Smuzhiyun * cachectl(2) is currently not supported and returns ENOSYS. 20*4882a593Smuzhiyun */ 21*4882a593Smuzhiyun #define CACHEABLE 0 /* make pages cacheable */ 22*4882a593Smuzhiyun #define UNCACHEABLE 1 /* make pages uncacheable */ 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #endif /* _ASM_CACHECTL */ 25