1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $ 3 * 4 * include/asm-sh/cache.h 5 * 6 * Copyright 1999 (C) Niibe Yutaka 7 * Copyright 2002, 2003 (C) Paul Mundt 8 */ 9 #ifndef __ASM_SH_CACHE_H 10 #define __ASM_SH_CACHE_H 11 #ifdef __KERNEL__ 12 13 #include <linux/init.h> 14 #include <cpu/cache.h> 15 16 #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) 17 18 #define __read_mostly __attribute__((__section__(".data..read_mostly"))) 19 20 #ifndef __ASSEMBLY__ 21 struct cache_info { 22 unsigned int ways; /* Number of cache ways */ 23 unsigned int sets; /* Number of cache sets */ 24 unsigned int linesz; /* Cache line size (bytes) */ 25 26 unsigned int way_size; /* sets * line size */ 27 28 /* 29 * way_incr is the address offset for accessing the next way 30 * in memory mapped cache array ops. 31 */ 32 unsigned int way_incr; 33 unsigned int entry_shift; 34 unsigned int entry_mask; 35 36 /* 37 * Compute a mask which selects the address bits which overlap between 38 * 1. those used to select the cache set during indexing 39 * 2. those in the physical page number. 40 */ 41 unsigned int alias_mask; 42 unsigned int n_aliases; /* Number of aliases */ 43 44 unsigned long flags; 45 }; 46 #endif /* __ASSEMBLY__ */ 47 #endif /* __KERNEL__ */ 48 #endif /* __ASM_SH_CACHE_H */ 49