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>
50 lines
1.3 KiB
ArmAsm
50 lines
1.3 KiB
ArmAsm
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Micro-assembler generated clear_page/copy_page functions.
|
|
*
|
|
* Copyright (C) 2012 MIPS Technologies, Inc.
|
|
* Copyright (C) 2012 Ralf Baechle <ralf@linux-mips.org>
|
|
*/
|
|
#include <asm/asm.h>
|
|
#include <asm/regdef.h>
|
|
|
|
#ifdef CONFIG_SIBYTE_DMA_PAGEOPS
|
|
#define cpu_clear_page_function_name clear_page_cpu
|
|
#define cpu_copy_page_function_name copy_page_cpu
|
|
#else
|
|
#define cpu_clear_page_function_name clear_page
|
|
#define cpu_copy_page_function_name copy_page
|
|
#endif
|
|
|
|
/*
|
|
* Maximum sizes:
|
|
*
|
|
* R4000 128 bytes S-cache: 0x058 bytes
|
|
* R4600 v1.7: 0x05c bytes
|
|
* R4600 v2.0: 0x060 bytes
|
|
* With prefetching, 16 word strides 0x120 bytes
|
|
*/
|
|
EXPORT(__clear_page_start)
|
|
LEAF(cpu_clear_page_function_name)
|
|
1: j 1b /* Dummy, will be replaced. */
|
|
.space 288
|
|
END(cpu_clear_page_function_name)
|
|
EXPORT(__clear_page_end)
|
|
|
|
/*
|
|
* Maximum sizes:
|
|
*
|
|
* R4000 128 bytes S-cache: 0x11c bytes
|
|
* R4600 v1.7: 0x080 bytes
|
|
* R4600 v2.0: 0x07c bytes
|
|
* With prefetching, 16 word strides 0x540 bytes
|
|
*/
|
|
EXPORT(__copy_page_start)
|
|
LEAF(cpu_copy_page_function_name)
|
|
1: j 1b /* Dummy, will be replaced. */
|
|
.space 1344
|
|
END(cpu_copy_page_function_name)
|
|
EXPORT(__copy_page_end)
|