csky: Fixup 610 vipt cache flush mechanism

610 has vipt aliasing issue, so we need to finish the cache flush
apis mentioned in cachetlb.rst to avoid data corruption.

Here is the list of modified apis in the patch:

 - flush_kernel_dcache_page      (new add)
 - flush_dcache_mmap_lock        (new add)
 - flush_dcache_mmap_unlock      (new add)
 - flush_kernel_vmap_range       (new add)
 - invalidate_kernel_vmap_range  (new add)
 - flush_anon_page               (new add)
 - flush_cache_range             (new add)
 - flush_cache_vmap              (flush all)
 - flush_cache_vunmap            (flush all)
 - flush_cache_mm                (only dcache flush)
 - flush_icache_page             (just nop)
 - copy_from_user_page           (remove no need flush)
 - copy_to_user_page             (remove no need flush)

Change to V2:
 - Fixup compile error with xa_lock*(&mapping->i_pages)

Signed-off-by: Guo Ren <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Christoph Hellwig <[email protected]>

0 files changed, 0 insertions, 0 deletions