diff options
Diffstat (limited to 'arch/csky/mm/cachev2.c')
| -rw-r--r-- | arch/csky/mm/cachev2.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/arch/csky/mm/cachev2.c b/arch/csky/mm/cachev2.c index b61be6518e21..909fdd0f5995 100644 --- a/arch/csky/mm/cachev2.c +++ b/arch/csky/mm/cachev2.c @@ -3,15 +3,25 @@ #include <linux/spinlock.h> #include <linux/smp.h> +#include <linux/mm.h> #include <asm/cache.h> #include <asm/barrier.h> -inline void dcache_wb_line(unsigned long start) +#define INS_CACHE (1 << 0) +#define CACHE_INV (1 << 4) + +void local_icache_inv_all(void *priv) { - asm volatile("dcache.cval1 %0\n"::"r"(start):"memory"); + mtcr("cr17", INS_CACHE|CACHE_INV); sync_is(); } +void icache_inv_all(void) +{ + on_each_cpu(local_icache_inv_all, NULL, 1); +} + +#ifdef CONFIG_CPU_HAS_ICACHE_INS void icache_inv_range(unsigned long start, unsigned long end) { unsigned long i = start & ~(L1_CACHE_BYTES - 1); @@ -20,10 +30,16 @@ void icache_inv_range(unsigned long start, unsigned long end) asm volatile("icache.iva %0\n"::"r"(i):"memory"); sync_is(); } +#else +void icache_inv_range(unsigned long start, unsigned long end) +{ + icache_inv_all(); +} +#endif -void icache_inv_all(void) +inline void dcache_wb_line(unsigned long start) { - asm volatile("icache.ialls\n":::"memory"); + asm volatile("dcache.cval1 %0\n"::"r"(start):"memory"); sync_is(); } @@ -53,10 +69,7 @@ void cache_wbinv_range(unsigned long start, unsigned long end) asm volatile("dcache.cval1 %0\n"::"r"(i):"memory"); sync_is(); - i = start & ~(L1_CACHE_BYTES - 1); - for (; i < end; i += L1_CACHE_BYTES) - asm volatile("icache.iva %0\n"::"r"(i):"memory"); - sync_is(); + icache_inv_range(start, end); } EXPORT_SYMBOL(cache_wbinv_range); |