55bdd69411
This patch adds the base support for the ARMv7-M architecture. It consists of the corresponding arch/arm/mm/ files and various #ifdef's around the kernel. Exception handling is implemented by a subsequent patch. [ukleinek: squash in some changes originating from commit b5717ba (Cortex-M3: Add support for the Microcontroller Prototyping System) from the v2.6.33-arm1 patch stack, port to post 3.6, drop zImage support, drop reorganisation of pt_regs, assert CONFIG_CPU_V7M doesn't leak into installed headers and a few cosmetic changes] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Jonathan Austin <jonathan.austin@arm.com> Tested-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
50 lines
1.3 KiB
ArmAsm
50 lines
1.3 KiB
ArmAsm
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/linkage.h>
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#include <linux/init.h>
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#include "proc-macros.S"
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ENTRY(nop_flush_icache_all)
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mov pc, lr
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ENDPROC(nop_flush_icache_all)
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.globl nop_flush_kern_cache_all
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.equ nop_flush_kern_cache_all, nop_flush_icache_all
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.globl nop_flush_kern_cache_louis
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.equ nop_flush_kern_cache_louis, nop_flush_icache_all
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.globl nop_flush_user_cache_all
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.equ nop_flush_user_cache_all, nop_flush_icache_all
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.globl nop_flush_user_cache_range
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.equ nop_flush_user_cache_range, nop_flush_icache_all
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.globl nop_coherent_kern_range
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.equ nop_coherent_kern_range, nop_flush_icache_all
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ENTRY(nop_coherent_user_range)
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mov r0, 0
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mov pc, lr
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ENDPROC(nop_coherent_user_range)
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.globl nop_flush_kern_dcache_area
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.equ nop_flush_kern_dcache_area, nop_flush_icache_all
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.globl nop_dma_flush_range
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.equ nop_dma_flush_range, nop_flush_icache_all
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.globl nop_dma_map_area
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.equ nop_dma_map_area, nop_flush_icache_all
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.globl nop_dma_unmap_area
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.equ nop_dma_unmap_area, nop_flush_icache_all
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__INITDATA
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@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
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define_cache_functions nop
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