diff options
| author | Antoine Ténart <antoine.tenart@free-electrons.com> | 2017-12-14 15:26:55 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-12-22 20:03:34 +1100 |
| commit | 2313e9f7ecaa6119ed877b523be7cd51768a6ddc (patch) | |
| tree | f322abdf7a9349acb5f6f500becf8fa8743b0713 /drivers | |
| parent | fc8c72b2cb269b130ad7d781023cd65514736c79 (diff) | |
| download | linux-2313e9f7ecaa6119ed877b523be7cd51768a6ddc.tar.bz2 | |
crypto: inside-secure - acknowledge the result requests all at once
This patches moves the result request acknowledgment from a per request
process to acknowledging all the result requests handled at once.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index db7ad9d3eeed..36c9a72c47b1 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -600,7 +600,7 @@ static inline void safexcel_handle_result_descriptor(struct safexcel_crypto_priv { struct safexcel_request *sreq; struct safexcel_context *ctx; - int ret, i, nreq, ndesc = 0, done; + int ret, i, nreq, ndesc = 0, tot_descs = 0, done; bool should_complete; nreq = readl(priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT); @@ -622,13 +622,9 @@ static inline void safexcel_handle_result_descriptor(struct safexcel_crypto_priv if (ndesc < 0) { kfree(sreq); dev_err(priv->dev, "failed to handle result (%d)", ndesc); - goto requests_left; + goto acknowledge; } - writel(EIP197_xDR_PROC_xD_PKT(1) | - EIP197_xDR_PROC_xD_COUNT(ndesc * priv->config.rd_offset), - priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT); - if (should_complete) { local_bh_disable(); sreq->req->complete(sreq->req, ret); @@ -636,6 +632,14 @@ static inline void safexcel_handle_result_descriptor(struct safexcel_crypto_priv } kfree(sreq); + tot_descs += ndesc; + } + +acknowledge: + if (i) { + writel(EIP197_xDR_PROC_xD_PKT(i) | + EIP197_xDR_PROC_xD_COUNT(tot_descs * priv->config.rd_offset), + priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT); } requests_left: |