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 <asm/asm.h> 12#include <asm/regdef.h> 13 14#ifdef CONFIG_SIBYTE_DMA_PAGEOPS 15#define cpu_clear_page_function_name clear_page_cpu 16#define cpu_copy_page_function_name copy_page_cpu 17#else 18#define cpu_clear_page_function_name clear_page 19#define cpu_copy_page_function_name copy_page 20#endif 21 22/* 23 * Maximum sizes: 24 * 25 * R4000 128 bytes S-cache: 0x058 bytes 26 * R4600 v1.7: 0x05c bytes 27 * R4600 v2.0: 0x060 bytes 28 * With prefetching, 16 word strides 0x120 bytes 29 */ 30EXPORT(__clear_page_start) 31LEAF(cpu_clear_page_function_name) 321: j 1b /* Dummy, will be replaced. */ 33 .space 288 34END(cpu_clear_page_function_name) 35EXPORT(__clear_page_end) 36 37/* 38 * Maximum sizes: 39 * 40 * R4000 128 bytes S-cache: 0x11c bytes 41 * R4600 v1.7: 0x080 bytes 42 * R4600 v2.0: 0x07c bytes 43 * With prefetching, 16 word strides 0x540 bytes 44 */ 45EXPORT(__copy_page_start) 46LEAF(cpu_copy_page_function_name) 471: j 1b /* Dummy, will be replaced. */ 48 .space 1344 49END(cpu_copy_page_function_name) 50EXPORT(__copy_page_end) 51