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Commit 58c35bd3 authored by Vitja Makarov's avatar Vitja Makarov Committed by Bryan Wu
Browse files

Blackfin arch: introducing bfin_addr_dcachable 



This patch introduces bfin_addr_dcachable() predicate, that simply tests is
address in cachable region or not.

Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent 3094c981

arch/blackfin/include/asm/cplbinit.h

+14 −0
Original line number Diff line number Diff line
@@ -92,4 +92,18 @@ extern unsigned long reserved_mem_icache_on; 


extern void generate_cplb_tables(void);



static inline int bfin_addr_dcachable(unsigned long addr)

{

#ifdef CONFIG_BFIN_DCACHE

	if (addr < (_ramend - DMA_UNCACHED_REGION))

		return 1;

#endif



	if (reserved_mem_dcache_on &&

		addr >= _ramend && addr < physical_mem_end)

		return 1;



	return 0;

}



#endif

arch/blackfin/kernel/setup.c

+1 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ EXPORT_SYMBOL(memory_start); 
EXPORT_SYMBOL(memory_end);

EXPORT_SYMBOL(physical_mem_end);

EXPORT_SYMBOL(_ramend);

EXPORT_SYMBOL(reserved_mem_dcache_on);



#ifdef CONFIG_MTD_UCLINUX

unsigned long memory_mtd_end, memory_mtd_start, mtd_size;