diff options
| -rw-r--r-- | cpu/mips/cpu.c | 28 | ||||
| -rw-r--r-- | include/common.h | 2 |
2 files changed, 30 insertions, 0 deletions
diff --git a/cpu/mips/cpu.c b/cpu/mips/cpu.c index b7180b0c6c..d5a16047de 100644 --- a/cpu/mips/cpu.c +++ b/cpu/mips/cpu.c @@ -65,6 +65,34 @@ void flush_cache(ulong start_addr, ulong size) } } +void flush_dcache_range(ulong start_addr, ulong stop) +{ + unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE; + unsigned long addr = start_addr & ~(lsize - 1); + unsigned long aend = (stop - 1) & ~(lsize - 1); + + while (1) { + cache_op(Hit_Writeback_Inv_D, addr); + if (addr == aend) + break; + addr += lsize; + } +} + +void invalidate_dcache_range(ulong start_addr, ulong stop) +{ + unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE; + unsigned long addr = start_addr & ~(lsize - 1); + unsigned long aend = (stop - 1) & ~(lsize - 1); + + while (1) { + cache_op(Hit_Invalidate_D, addr); + if (addr == aend) + break; + addr += lsize; + } +} + void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1) { write_c0_entrylo0(low0); diff --git a/include/common.h b/include/common.h index 5968036a05..afee1889a0 100644 --- a/include/common.h +++ b/include/common.h @@ -597,6 +597,8 @@ ulong video_setmem (ulong); /* lib_$(ARCH)/cache.c */ void flush_cache (unsigned long, unsigned long); +void flush_dcache_range(unsigned long start, unsigned long stop); +void invalidate_dcache_range(unsigned long start, unsigned long stop); /* lib_$(ARCH)/ticks.S */ |