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authorChristoph Hellwig <hch@lst.de>2018-04-18 08:53:46 +0200
committerChristoph Hellwig <hch@lst.de>2018-08-02 13:54:06 +0200
commit47fcae0d2a5fc77123fc14b0db9fe0025a1a829a (patch)
tree9a268264ff9a50e2d09b1cf43dd8f1887caade61 /drivers/sh
parentb2fcb677d4dd2aac3202365719733452b5512719 (diff)
downloadlinux-47fcae0d2a5fc77123fc14b0db9fe0025a1a829a.tar.gz
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>
Diffstat (limited to 'drivers/sh')
-rw-r--r--drivers/sh/maple/maple.c7
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);