diff options
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/include/asm/cplbinit.h | 14 | ||||
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 1 |
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/cplbinit.h b/arch/blackfin/include/asm/cplbinit.h index 9d23cd1ff7d..d179b747ff0 100644 --- a/arch/blackfin/include/asm/cplbinit.h +++ b/arch/blackfin/include/asm/cplbinit.h @@ -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 diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 7054594831c..7f35d1046cd 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -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; |