| /* MN103E010 Cache specification |
| * |
| * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public Licence |
| * as published by the Free Software Foundation; either version |
| * 2 of the Licence, or (at your option) any later version. |
| */ |
| #ifndef _ASM_PROC_CACHE_H |
| #define _ASM_PROC_CACHE_H |
| |
| /* L1 cache */ |
| |
| #define L1_CACHE_NWAYS 4 /* number of ways in caches */ |
| #define L1_CACHE_NENTRIES 256 /* number of entries in each way */ |
| #define L1_CACHE_BYTES 16 /* bytes per entry */ |
| #define L1_CACHE_SHIFT 4 /* shift for bytes per entry */ |
| #define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */ |
| |
| #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ |
| #define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */ |
| #define L1_CACHE_TAG_ENTRY 0x00000ff0 /* cache tag entry address mask */ |
| #define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */ |
| #define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY) |
| |
| /* |
| * specification of the interval between interrupt checking intervals whilst |
| * managing the cache with the interrupts disabled |
| */ |
| #define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4 |
| |
| /* |
| * The size of range at which it becomes more economical to just flush the |
| * whole cache rather than trying to flush the specified range. |
| */ |
| #define MN10300_DCACHE_FLUSH_BORDER \ |
| +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) |
| #define MN10300_DCACHE_FLUSH_INV_BORDER \ |
| +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) |
| |
| #endif /* _ASM_PROC_CACHE_H */ |
