diff options
Diffstat (limited to 'arch/arc/mm')
| -rw-r--r-- | arch/arc/mm/cache_arc700.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c index a65c13942766..5651e7bd3b7e 100644 --- a/arch/arc/mm/cache_arc700.c +++ b/arch/arc/mm/cache_arc700.c @@ -642,8 +642,8 @@ void dma_cache_wback(unsigned long start, unsigned long sz) EXPORT_SYMBOL(dma_cache_wback); /* - * This is API for making I/D Caches consistent when modifying code - * (loadable modules, kprobes, etc) + * This is API for making I/D Caches consistent when modifying + * kernel code (loadable modules, kprobes, kgdb...) * This is called on insmod, with kernel virtual address for CODE of * the module. ARC cache maintenance ops require PHY address thus we * need to convert vmalloc addr to PHY addr @@ -673,7 +673,13 @@ void flush_icache_range(unsigned long kstart, unsigned long kend) /* Case: Kernel Phy addr (0x8000_0000 onwards) */ if (likely(kstart > PAGE_OFFSET)) { - __ic_line_inv(kstart, kend - kstart); + /* + * The 2nd arg despite being paddr will be used to index icache + * This is OK since no alternate virtual mappings will exist + * given the callers for this case: kprobe/kgdb in built-in + * kernel code only. + */ + __ic_line_inv_vaddr(kstart, kstart, kend - kstart); __dc_line_op(kstart, kend - kstart, OP_FLUSH); return; } @@ -694,7 +700,7 @@ void flush_icache_range(unsigned long kstart, unsigned long kend) sz = min_t(unsigned int, tot_sz, PAGE_SIZE - off); local_irq_save(flags); __dc_line_op(phy, sz, OP_FLUSH); - __ic_line_inv(phy, sz); + __ic_line_inv_vaddr(phy, kstart, sz); local_irq_restore(flags); kstart += sz; tot_sz -= sz; |