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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/mips/mm/page-funcs.S
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/*

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 * This file is subject to the terms and conditions of the GNU General Public

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 * License.  See the file "COPYING" in the main directory of this archive

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 * for more details.

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 *

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 * Micro-assembler generated clear_page/copy_page functions.

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 *

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 * Copyright (C) 2012  MIPS Technologies, Inc.

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 * Copyright (C) 2012  Ralf Baechle <[email protected]>

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 */

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#include <linux/export.h>

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#include <asm/asm.h>

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#include <asm/regdef.h>

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#ifdef CONFIG_SIBYTE_DMA_PAGEOPS

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#define cpu_clear_page_function_name	clear_page_cpu

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#define cpu_copy_page_function_name	copy_page_cpu

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#else

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#define cpu_clear_page_function_name	clear_page

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#define cpu_copy_page_function_name	copy_page

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#endif

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/*

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 * Maximum sizes:

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 *

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 * R4000 128 bytes S-cache:		0x058 bytes

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 * R4600 v1.7:				0x05c bytes

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 * R4600 v2.0:				0x060 bytes

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 * With prefetching, 16 word strides	0x120 bytes

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 */

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EXPORT(__clear_page_start)

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LEAF(cpu_clear_page_function_name)

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EXPORT_SYMBOL(cpu_clear_page_function_name)

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1:	j	1b		/* Dummy, will be replaced. */

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	.space 288

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END(cpu_clear_page_function_name)

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EXPORT(__clear_page_end)

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/*

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 * Maximum sizes:

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 *

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 * R4000 128 bytes S-cache:		0x11c bytes

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 * R4600 v1.7:				0x080 bytes

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 * R4600 v2.0:				0x07c bytes

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 * With prefetching, 16 word strides	0x540 bytes

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 */

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EXPORT(__copy_page_start)

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LEAF(cpu_copy_page_function_name)

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EXPORT_SYMBOL(cpu_copy_page_function_name)

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1:	j	1b		/* Dummy, will be replaced. */

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	.space 1344

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END(cpu_copy_page_function_name)

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EXPORT(__copy_page_end)

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