| 1 | /* |
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| 2 | * This file is subject to the terms and conditions of the GNU General Public |
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| 3 | * License. See the file "COPYING" in the main directory of this archive |
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| 4 | * for more details. |
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| 5 | * |
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| 6 | * Micro-assembler generated clear_page/copy_page functions. |
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| 7 | * |
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| 8 | * Copyright (C) 2012 MIPS Technologies, Inc. |
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| 9 | * Copyright (C) 2012 Ralf Baechle <ralf@linux-mips.org> |
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| 10 | */ |
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| 11 | #include <linux/export.h> |
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| 12 | #include <asm/asm.h> |
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| 13 | #include <asm/regdef.h> |
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| 14 | |
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| 15 | #ifdef CONFIG_SIBYTE_DMA_PAGEOPS |
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| 16 | #define cpu_clear_page_function_name clear_page_cpu |
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| 17 | #define cpu_copy_page_function_name copy_page_cpu |
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| 18 | #else |
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| 19 | #define cpu_clear_page_function_name clear_page |
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| 20 | #define cpu_copy_page_function_name copy_page |
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| 21 | #endif |
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| 22 | |
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| 23 | /* |
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| 24 | * Maximum sizes: |
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| 25 | * |
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| 26 | * R4000 128 bytes S-cache: 0x058 bytes |
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| 27 | * R4600 v1.7: 0x05c bytes |
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| 28 | * R4600 v2.0: 0x060 bytes |
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| 29 | * With prefetching, 16 word strides 0x120 bytes |
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| 30 | */ |
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| 31 | EXPORT(__clear_page_start) |
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| 32 | LEAF(cpu_clear_page_function_name) |
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| 33 | EXPORT_SYMBOL(cpu_clear_page_function_name) |
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| 34 | 1: j 1b /* Dummy, will be replaced. */ |
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| 35 | .space 288 |
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| 36 | END(cpu_clear_page_function_name) |
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| 37 | EXPORT(__clear_page_end) |
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| 38 | |
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| 39 | /* |
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| 40 | * Maximum sizes: |
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| 41 | * |
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| 42 | * R4000 128 bytes S-cache: 0x11c bytes |
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| 43 | * R4600 v1.7: 0x080 bytes |
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| 44 | * R4600 v2.0: 0x07c bytes |
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| 45 | * With prefetching, 16 word strides 0x540 bytes |
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| 46 | */ |
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| 47 | EXPORT(__copy_page_start) |
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| 48 | LEAF(cpu_copy_page_function_name) |
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| 49 | EXPORT_SYMBOL(cpu_copy_page_function_name) |
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| 50 | 1: j 1b /* Dummy, will be replaced. */ |
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| 51 | .space 1344 |
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| 52 | END(cpu_copy_page_function_name) |
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| 53 | EXPORT(__copy_page_end) |
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| 54 | |
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