diff options
Diffstat (limited to 'arch/sh/include/asm/cache.h')
| -rw-r--r-- | arch/sh/include/asm/cache.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h new file mode 100644 index 0000000000..b38dbc9755 --- /dev/null +++ b/arch/sh/include/asm/cache.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $ + * + * include/asm-sh/cache.h + * + * Copyright 1999 (C) Niibe Yutaka + * Copyright 2002, 2003 (C) Paul Mundt + */ +#ifndef __ASM_SH_CACHE_H +#define __ASM_SH_CACHE_H + +#include <linux/init.h> +#include <cpu/cache.h> + +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) + +/* + * Some drivers need to perform DMA into kmalloc'ed buffers + * and so we have to increase the kmalloc minalign for this. + */ +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES + +#define __read_mostly __section(".data..read_mostly") + +#ifndef __ASSEMBLY__ +struct cache_info { + unsigned int ways; /* Number of cache ways */ + unsigned int sets; /* Number of cache sets */ + unsigned int linesz; /* Cache line size (bytes) */ + + unsigned int way_size; /* sets * line size */ + + /* + * way_incr is the address offset for accessing the next way + * in memory mapped cache array ops. + */ + unsigned int way_incr; + unsigned int entry_shift; + unsigned int entry_mask; + + /* + * Compute a mask which selects the address bits which overlap between + * 1. those used to select the cache set during indexing + * 2. those in the physical page number. + */ + unsigned int alias_mask; + unsigned int n_aliases; /* Number of aliases */ + + unsigned long flags; +}; +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_SH_CACHE_H */ |