| David Howells | c9034c3 | 2012-03-28 18:30:02 +0100 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2001 Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto |
| 7 | * Copyright (C) 2004, 2006 Hirokazu Takata <takata at linux-m32r.org> |
| 8 | */ |
| 9 | #ifndef _ASM_M32R_DCACHE_CLEAR_H |
| 10 | #define _ASM_M32R_DCACHE_CLEAR_H |
| 11 | |
| 12 | #ifdef CONFIG_CHIP_M32700_TS1 |
| 13 | #define DCACHE_CLEAR(reg0, reg1, addr) \ |
| 14 | "seth "reg1", #high(dcache_dummy); \n\t" \ |
| 15 | "or3 "reg1", "reg1", #low(dcache_dummy); \n\t" \ |
| 16 | "lock "reg0", @"reg1"; \n\t" \ |
| 17 | "add3 "reg0", "addr", #0x1000; \n\t" \ |
| 18 | "ld "reg0", @"reg0"; \n\t" \ |
| 19 | "add3 "reg0", "addr", #0x2000; \n\t" \ |
| 20 | "ld "reg0", @"reg0"; \n\t" \ |
| 21 | "unlock "reg0", @"reg1"; \n\t" |
| 22 | /* FIXME: This workaround code cannot handle kernel modules |
| 23 | * correctly under SMP environment. |
| 24 | */ |
| 25 | #else /* CONFIG_CHIP_M32700_TS1 */ |
| 26 | #define DCACHE_CLEAR(reg0, reg1, addr) |
| 27 | #endif /* CONFIG_CHIP_M32700_TS1 */ |
| 28 | |
| 29 | #endif /* _ASM_M32R_DCACHE_CLEAR_H */ |