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sh: introduce a sh_cacheop_vaddr helper

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

Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Yoshinori Sato <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-04-18 08:53:46 +02:00
commit 47fcae0d2a
3 changed files with 12 additions and 8 deletions
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7
drivers/sh/maple/maple.c
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@ -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);