In flush_cache_range(vma, ...) cache_wbinv_range() couldn't deal with vma->mm's asid for cache_flush_line. So we use cache_wbinv_all() first and we'll improve with cache_flush(vma, start, end) in future.
For tlb_start_vma, we make it the same as other arch. Signed-off-by: Guo Ren <[email protected]> --- arch/csky/abiv1/inc/abi/cacheflush.h | 6 +++++- arch/csky/abiv1/inc/abi/tlb.h | 2 +- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/csky/abiv1/inc/abi/cacheflush.h b/arch/csky/abiv1/inc/abi/cacheflush.h index f0de49c..4ae81b0 100644 --- a/arch/csky/abiv1/inc/abi/cacheflush.h +++ b/arch/csky/abiv1/inc/abi/cacheflush.h @@ -15,7 +15,11 @@ extern void flush_dcache_page(struct page *); #define flush_cache_page(vma,page,pfn) cache_wbinv_all() #define flush_cache_dup_mm(mm) cache_wbinv_all() -#define flush_cache_range(mm,start,end) cache_wbinv_range(start, end) +/* + * if (current_mm != vma->mm) cache_wbinv_range(start, end) will be broken. + * Use cache_wbinv_all() here and need to be improved in future. + */ +#define flush_cache_range(vma,start,end) cache_wbinv_all() #define flush_cache_vmap(start, end) cache_wbinv_range(start, end) #define flush_cache_vunmap(start, end) cache_wbinv_range(start, end) diff --git a/arch/csky/abiv1/inc/abi/tlb.h b/arch/csky/abiv1/inc/abi/tlb.h index 6d461f3..3b9d6d9 100644 --- a/arch/csky/abiv1/inc/abi/tlb.h +++ b/arch/csky/abiv1/inc/abi/tlb.h @@ -7,6 +7,6 @@ #define tlb_start_vma(tlb, vma) \ do { \ if (!tlb->fullmm) \ - cache_wbinv_all(); \ + flush_cache_range(vma, vma->vm_start, vma->vm_end); \ } while (0) #endif /* __ABI_CSKY_TLB_H */ -- 2.7.4
