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Commit e6b1b38c authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[ARM] nommu: Provide a simple flush_dcache_page implementation 



nommu doesn't require a complex flush_dcache_page implementation
like the MMU-ful CPUs do, so provide a simplified version in nommu.c
and omit flush.c from the build as appropriate.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 3b93e7b0

arch/arm/mm/Makefile

+2 −2
Original line number Diff line number Diff line
@@ -3,10 +3,10 @@ 
#



obj-y				:= consistent.o extable.o fault-armv.o \

				   fault.o flush.o init.o iomap.o mmap.o \

				   fault.o init.o iomap.o mmap.o \

				   mm-armv.o



obj-$(CONFIG_MMU)		+= ioremap.o

obj-$(CONFIG_MMU)		+= flush.o ioremap.o



ifneq ($(CONFIG_MMU),y)

obj-y				+= nommu.o

arch/arm/mm/nommu.c

+8 −0
Original line number Diff line number Diff line
@@ -4,10 +4,18 @@ 
 * ARM uCLinux supporting functions.

 */

#include <linux/module.h>

#include <linux/mm.h>

#include <linux/pagemap.h>



#include <asm/cacheflush.h>

#include <asm/io.h>

#include <asm/page.h>



void flush_dcache_page(struct page *page)

{

	__cpuc_flush_dcache_page(page_address(page));

}



void __iomem *__ioremap_pfn(unsigned long pfn, unsigned long offset,

			    size_t size, unsigned long flags)

{