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 */ 31 EXPORT(__clear_page_start) 32 LEAF(cpu_clear_page_function_name) 33 EXPORT_SYMBOL(cpu_clear_page_function_name) 34 1: j 1b /* Dummy, will be replaced. */ 35 .space 288 36 END(cpu_clear_page_function_name) 37 EXPORT(__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 */ 47 EXPORT(__copy_page_start) 48 LEAF(cpu_copy_page_function_name) 49 EXPORT_SYMBOL(cpu_copy_page_function_name) 50 1: j 1b /* Dummy, will be replaced. */ 51 .space 1344 52 END(cpu_copy_page_function_name) 53 EXPORT(__copy_page_end)
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