diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.c | 15 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 2 |
2 files changed, 14 insertions, 3 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 36c9a72c47b1..8042922b4ed8 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -600,12 +600,15 @@ 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, tot_descs = 0, done; + int ret, i, nreq, ndesc, tot_descs, done; bool should_complete; +handle_results: + tot_descs = 0; + nreq = readl(priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT); - nreq >>= 24; - nreq &= GENMASK(6, 0); + nreq >>= EIP197_xDR_PROC_xD_PKT_OFFSET; + nreq &= EIP197_xDR_PROC_xD_PKT_MASK; if (!nreq) goto requests_left; @@ -642,6 +645,12 @@ acknowledge: priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT); } + /* If the number of requests overflowed the counter, try to proceed more + * requests. + */ + if (nreq == EIP197_xDR_PROC_xD_PKT_MASK) + goto handle_results; + requests_left: spin_lock_bh(&priv->ring[ring].egress_lock); diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index 2a0ab6ce716a..0c47e792192d 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -117,6 +117,8 @@ #define EIP197_xDR_PREP_CLR_COUNT BIT(31) /* EIP197_HIA_xDR_PROC_COUNT */ +#define EIP197_xDR_PROC_xD_PKT_OFFSET 24 +#define EIP197_xDR_PROC_xD_PKT_MASK GENMASK(6, 0) #define EIP197_xDR_PROC_xD_COUNT(n) ((n) << 2) #define EIP197_xDR_PROC_xD_PKT(n) ((n) << 24) #define EIP197_xDR_PROC_CLR_COUNT BIT(31) |