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c022630633
Remove usage of the '__attribute__((alias("...")))' hack that aliased
to integer arrays containing micro-assembled instructions. This hack
breaks when building a microMIPS kernel. It also makes the code much
easier to understand.
[ralf@linux-mips.org: Added back export of the clear_page and copy_page
symbols so certain modules will work again. Also fixed build with
CONFIG_SIBYTE_DMA_PAGEOPS enabled.]
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3866/
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
51 lines
1.3 KiB
ArmAsm
51 lines
1.3 KiB
ArmAsm
/*
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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 <ralf@linux-mips.org>
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*/
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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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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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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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