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 * Micro-assembler generated clear_page/copy_page functions. 7 * 8 * Copyright (C) 2012 MIPS Technologies, Inc. 9 * Copyright (C) 2012 Ralf Baechle <ralf@linux-mips.org> 10 */ 11#include <linux/export.h> 12#include <asm/asm.h> 13#include <asm/regdef.h> 14 15#ifdef CONFIG_SIBYTE_DMA_PAGEOPS 16#define cpu_clear_page_function_name clear_page_cpu 17#define cpu_copy_page_function_name copy_page_cpu 18#else 19#define cpu_clear_page_function_name clear_page 20#define cpu_copy_page_function_name copy_page 21#endif 22 23/* 24 * Maximum sizes: 25 * 26 * R4000 128 bytes S-cache: 0x058 bytes 27 * R4600 v1.7: 0x05c bytes 28 * R4600 v2.0: 0x060 bytes 29 * With prefetching, 16 word strides 0x120 bytes 30 */ 31EXPORT(__clear_page_start) 32LEAF(cpu_clear_page_function_name) 33EXPORT_SYMBOL(cpu_clear_page_function_name) 341: j 1b /* Dummy, will be replaced. */ 35 .space 288 36END(cpu_clear_page_function_name) 37EXPORT(__clear_page_end) 38 39/* 40 * Maximum sizes: 41 * 42 * R4000 128 bytes S-cache: 0x11c bytes 43 * R4600 v1.7: 0x080 bytes 44 * R4600 v2.0: 0x07c bytes 45 * With prefetching, 16 word strides 0x540 bytes 46 */ 47EXPORT(__copy_page_start) 48LEAF(cpu_copy_page_function_name) 49EXPORT_SYMBOL(cpu_copy_page_function_name) 501: j 1b /* Dummy, will be replaced. */ 51 .space 1344 52END(cpu_copy_page_function_name) 53EXPORT(__copy_page_end) 54