[05/10] crypto: omap-aes: Sync SG before DMA operation

Commit Message

Joel Fernandes Aug. 14, 2013, 11:12 p.m. UTC

Earlier functions that did a similar sync are replaced by
the dma_sync_sg_* which can operate on entire SG list.

Signed-off-by: Joel Fernandes <[e-mail]>
---
 drivers/crypto/omap-aes.c |    4 ++++
 1 file changed, 4 insertions(+)

Patch

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index 9104a7f..df2f867 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -499,6 +499,8 @@  static int omap_aes_crypt_dma(struct crypto_tfm *tfm,
 	struct dma_slave_config cfg;
 	int ret;
 
+	dma_sync_sg_for_device(dd->dev, dd->in_sg, in_sg_len, DMA_TO_DEVICE);
+
 	memset(&cfg, 0, sizeof(cfg));
 
 	cfg.src_addr = dd->phys_base + AES_REG_DATA_N(dd, 0);
@@ -686,6 +688,8 @@  static void omap_aes_done_task(unsigned long data)
 
 	pr_debug("enter done_task\n");
 
+	dma_sync_sg_for_cpu(dd->dev, dd->in_sg, dd->in_sg_len, DMA_FROM_DEVICE);
+
 	omap_aes_crypt_dma_stop(dd);
 	omap_aes_finish_req(dd, 0);
 	omap_aes_handle_queue(dd, NULL);