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crypto: inside-secure - acknowledge the result requests all at once

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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>
This commit is contained in:
Antoine Ténart
2017-12-14 15:26:55 +01:00
committed by Herbert Xu
parent fc8c72b2cb
commit 2313e9f7ec
1 changed files with 10 additions and 6 deletions
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16
drivers/crypto/inside-secure/safexcel.c
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@ -600,7 +600,7 @@ static inline void safexcel_handle_result_descriptor(struct safexcel_crypto_priv
{ {
struct safexcel_request *sreq; struct safexcel_request *sreq;
struct safexcel_context *ctx; struct safexcel_context *ctx;
int ret, i, nreq, ndesc = 0, done; int ret, i, nreq, ndesc = 0, tot_descs = 0, done;
bool should_complete; bool should_complete;
nreq = readl(priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT); 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) { if (ndesc < 0) {
kfree(sreq); kfree(sreq);
dev_err(priv->dev, "failed to handle result (%d)", ndesc); 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) { if (should_complete) {
local_bh_disable(); local_bh_disable();
sreq->req->complete(sreq->req, ret); sreq->req->complete(sreq->req, ret);
@ -636,6 +632,14 @@ static inline void safexcel_handle_result_descriptor(struct safexcel_crypto_priv
} }
kfree(sreq); 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: requests_left: