| Steven J. Hill | c022630 | 2012-07-06 21:56:01 +0200 | [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 | * 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 | */ |
| 30 | EXPORT(__clear_page_start) |
| 31 | LEAF(cpu_clear_page_function_name) |
| 32 | 1: j 1b /* Dummy, will be replaced. */ |
| 33 | .space 288 |
| 34 | END(cpu_clear_page_function_name) |
| 35 | EXPORT(__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 | */ |
| 45 | EXPORT(__copy_page_start) |
| 46 | LEAF(cpu_copy_page_function_name) |
| 47 | 1: j 1b /* Dummy, will be replaced. */ |
| 48 | .space 1344 |
| 49 | END(cpu_copy_page_function_name) |
| 50 | EXPORT(__copy_page_end) |