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c0226306 SH |
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) |