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| author | Christoph Hellwig <hch@lst.de> | 2018-04-18 08:53:46 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-08-02 13:54:06 +0200 |
| commit | 47fcae0d2a5fc77123fc14b0db9fe0025a1a829a (patch) | |
| tree | 9a268264ff9a50e2d09b1cf43dd8f1887caade61 /drivers/sh | |
| parent | b2fcb677d4dd2aac3202365719733452b5512719 (diff) | |
| download | lwn-47fcae0d2a5fc77123fc14b0db9fe0025a1a829a.tar.gz lwn-47fcae0d2a5fc77123fc14b0db9fe0025a1a829a.zip | |
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.c | 7 |
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); |