sh: introduce a sh_cacheop_vaddr helper

And use it in the maple bus code to avoid a dma API dependency.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 2e45988d1259..e5d7fb81ad66 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -300,8 +300,8 @@ static void maple_send(void)
         mutex_unlock(&maple_wlist_lock);
         if (maple_packets > 0) {
                 for (i = 0; i < (1 << MAPLE_DMA_PAGES); i++)
-                        sh_sync_dma_for_device(maple_sendbuf + i * PAGE_SIZE,
-                                       PAGE_SIZE, DMA_BIDIRECTIONAL);
+                        __flush_purge_region(maple_sendbuf + i * PAGE_SIZE,
+                                        PAGE_SIZE);
         }
 
 finish:
@@ -642,7 +642,8 @@ static void maple_dma_handler(struct work_struct *work)
                 list_for_each_entry_safe(mq, nmq, &maple_sentq, list) {
                         mdev = mq->dev;
                         recvbuf = mq->recvbuf->buf;
-                        sh_sync_dma_for_device(recvbuf, 0x400, DMA_FROM_DEVICE);
+                        __flush_invalidate_region(sh_cacheop_vaddr(recvbuf),
+                                        0x400);
                         code = recvbuf[0];
                         kfree(mq->sendbuf);
                         list_del_init(&mq->list);