| /* |
| * Copyright (C) 2012 ARM Ltd. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| #ifndef __ASM_CACHE_H |
| #define __ASM_CACHE_H |
| |
| #define L1_CACHE_SHIFT 6 |
| #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) |
| |
| /* |
| * Memory returned by kmalloc() may be used for DMA, so we must make |
| * sure that all such allocations are cache aligned. Otherwise, |
| * unrelated code may cause parts of the buffer to be read into the |
| * cache before the transfer is done, causing old data to be seen by |
| * the CPU. |
| */ |
| #define ARCH_DMA_MINALIGN L1_CACHE_BYTES |
| #define ARCH_SLAB_MINALIGN 8 |
| |
| #endif |
