diff options
Diffstat (limited to 'drivers/crypto/inside-secure/safexcel_hash.c')
-rw-r--r-- | drivers/crypto/inside-secure/safexcel_hash.c | 67 |
1 files changed, 53 insertions, 14 deletions
diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c index 74feb6227101..79fe149804d3 100644 --- a/drivers/crypto/inside-secure/safexcel_hash.c +++ b/drivers/crypto/inside-secure/safexcel_hash.c @@ -32,6 +32,7 @@ struct safexcel_ahash_req { bool last_req; bool finish; bool hmac; + bool needs_inv; u8 state_sz; /* expected sate size, only set once */ u32 state[SHA256_DIGEST_SIZE / sizeof(u32)]; @@ -119,9 +120,9 @@ static void safexcel_context_control(struct safexcel_ahash_ctx *ctx, } } -static int safexcel_handle_result(struct safexcel_crypto_priv *priv, int ring, - struct crypto_async_request *async, - bool *should_complete, int *ret) +static int safexcel_handle_req_result(struct safexcel_crypto_priv *priv, int ring, + struct crypto_async_request *async, + bool *should_complete, int *ret) { struct safexcel_result_desc *rdesc; struct ahash_request *areq = ahash_request_cast(async); @@ -165,9 +166,9 @@ static int safexcel_handle_result(struct safexcel_crypto_priv *priv, int ring, return 1; } -static int safexcel_ahash_send(struct crypto_async_request *async, int ring, - struct safexcel_request *request, int *commands, - int *results) +static int safexcel_ahash_send_req(struct crypto_async_request *async, int ring, + struct safexcel_request *request, + int *commands, int *results) { struct ahash_request *areq = ahash_request_cast(async); struct crypto_ahash *ahash = crypto_ahash_reqtfm(areq); @@ -292,7 +293,6 @@ send_command: req->processed += len; request->req = &areq->base; - ctx->base.handle_result = safexcel_handle_result; *commands = n_cdesc; *results = 1; @@ -374,8 +374,6 @@ static int safexcel_handle_inv_result(struct safexcel_crypto_priv *priv, ring = safexcel_select_ring(priv); ctx->base.ring = ring; - ctx->base.needs_inv = false; - ctx->base.send = safexcel_ahash_send; spin_lock_bh(&priv->ring[ring].queue_lock); enq_ret = crypto_enqueue_request(&priv->ring[ring].queue, async); @@ -392,6 +390,26 @@ static int safexcel_handle_inv_result(struct safexcel_crypto_priv *priv, return 1; } +static int safexcel_handle_result(struct safexcel_crypto_priv *priv, int ring, + struct crypto_async_request *async, + bool *should_complete, int *ret) +{ + struct ahash_request *areq = ahash_request_cast(async); + struct safexcel_ahash_req *req = ahash_request_ctx(areq); + int err; + + if (req->needs_inv) { + req->needs_inv = false; + err = safexcel_handle_inv_result(priv, ring, async, + should_complete, ret); + } else { + err = safexcel_handle_req_result(priv, ring, async, + should_complete, ret); + } + + return err; +} + static int safexcel_ahash_send_inv(struct crypto_async_request *async, int ring, struct safexcel_request *request, int *commands, int *results) @@ -400,7 +418,6 @@ static int safexcel_ahash_send_inv(struct crypto_async_request *async, struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); int ret; - ctx->base.handle_result = safexcel_handle_inv_result; ret = safexcel_invalidate_cache(async, &ctx->base, ctx->priv, ctx->base.ctxr_dma, ring, request); if (unlikely(ret)) @@ -412,11 +429,29 @@ static int safexcel_ahash_send_inv(struct crypto_async_request *async, return 0; } +static int safexcel_ahash_send(struct crypto_async_request *async, + int ring, struct safexcel_request *request, + int *commands, int *results) +{ + struct ahash_request *areq = ahash_request_cast(async); + struct safexcel_ahash_req *req = ahash_request_ctx(areq); + int ret; + + if (req->needs_inv) + ret = safexcel_ahash_send_inv(async, ring, request, + commands, results); + else + ret = safexcel_ahash_send_req(async, ring, request, + commands, results); + return ret; +} + static int safexcel_ahash_exit_inv(struct crypto_tfm *tfm) { struct safexcel_ahash_ctx *ctx = crypto_tfm_ctx(tfm); struct safexcel_crypto_priv *priv = ctx->priv; struct ahash_request req; + struct safexcel_ahash_req *rctx = ahash_request_ctx(&req); struct safexcel_inv_result result = {}; int ring = ctx->base.ring; @@ -430,7 +465,7 @@ static int safexcel_ahash_exit_inv(struct crypto_tfm *tfm) ahash_request_set_tfm(&req, __crypto_ahash_cast(tfm)); ctx = crypto_tfm_ctx(req.base.tfm); ctx->base.exit_inv = true; - ctx->base.send = safexcel_ahash_send_inv; + rctx->needs_inv = true; spin_lock_bh(&priv->ring[ring].queue_lock); crypto_enqueue_request(&priv->ring[ring].queue, &req.base); @@ -481,14 +516,16 @@ static int safexcel_ahash_enqueue(struct ahash_request *areq) struct safexcel_crypto_priv *priv = ctx->priv; int ret, ring; - ctx->base.send = safexcel_ahash_send; + req->needs_inv = false; if (req->processed && ctx->digest == CONTEXT_CONTROL_DIGEST_PRECOMPUTED) ctx->base.needs_inv = safexcel_ahash_needs_inv_get(areq); if (ctx->base.ctxr) { - if (ctx->base.needs_inv) - ctx->base.send = safexcel_ahash_send_inv; + if (ctx->base.needs_inv) { + ctx->base.needs_inv = false; + req->needs_inv = true; + } } else { ctx->base.ring = safexcel_select_ring(priv); ctx->base.ctxr = dma_pool_zalloc(priv->context_pool, @@ -622,6 +659,8 @@ static int safexcel_ahash_cra_init(struct crypto_tfm *tfm) struct safexcel_alg_template, alg.ahash); ctx->priv = tmpl->priv; + ctx->base.send = safexcel_ahash_send; + ctx->base.handle_result = safexcel_handle_result; crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), sizeof(struct safexcel_ahash_req)); |