[PATCH v2 05/14] crypto: omap-aes: Sync SG before DMA operation
From: Joel Fernandes <hidden>
Date: 2013-08-18 02:46:07
Also in:
linux-crypto, linux-omap, lkml
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
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 <redacted> --- drivers/crypto/omap-aes.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index 64dd5c1..5e034a1 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c@@ -489,6 +489,8 @@ 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);
@@ -676,6 +678,8 @@ 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);
--
1.7.9.5