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| author | Joel Fernandes <joelf@ti.com> | 2013-08-18 04:42:26 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-08-21 13:28:00 +0200 |
| commit | 0a641712ef9459df5d8c19fc19e686887257b3e3 (patch) | |
| tree | 558f74b706a211d3a7768108c675783f8b29f870 /drivers/crypto/omap-aes.c | |
| parent | crypto: omap-aes - Simplify DMA usage by using direct SGs (diff) | |
| download | linux-0a641712ef9459df5d8c19fc19e686887257b3e3.tar.xz linux-0a641712ef9459df5d8c19fc19e686887257b3e3.zip | |
crypto: omap-aes - Sync SG before DMA operation
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 <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/omap-aes.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index 114c55a59efe..4ed2a8c40394 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -484,6 +484,8 @@ 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); @@ -670,6 +672,8 @@ 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); |