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authorRyder Lee <ryder.lee@mediatek.com>2017-03-09 10:11:16 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2017-03-16 17:58:54 +0800
commit0d4a826611676198aea8ae531b84dd980a4b5f61 (patch)
treec7348f4b629c7c433aa8a014494fb6374eed37e8 /drivers/crypto
parent3d21c41f7e9b51c70d37b316f11cf5cce9dd3311 (diff)
crypto: mediatek - add queue_task tasklet
This patch adds 'queue_task' to dequeue crypto requset. This will help to avoid directly calling mtk_aes_handle_queue() / mtk_sha_handle_queue() from done tasklet or error handler. In order to avoid confusion, the new code properly renames DMA completion "task" to "done_task". Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/mediatek/mtk-aes.c20
-rw-r--r--drivers/crypto/mediatek/mtk-platform.h12
-rw-r--r--drivers/crypto/mediatek/mtk-sha.c19
3 files changed, 39 insertions, 12 deletions
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c
index 21f3e594804b..140e9a3ba177 100644
--- a/drivers/crypto/mediatek/mtk-aes.c
+++ b/drivers/crypto/mediatek/mtk-aes.c
@@ -533,7 +533,8 @@ static int mtk_aes_complete(struct mtk_cryp *cryp, struct mtk_aes_rec *aes)
aes->areq->complete(aes->areq, 0);
/* Handle new request */
- return mtk_aes_handle_queue(cryp, aes->id, NULL);
+ tasklet_schedule(&aes->queue_task);
+ return 0;
}
static int mtk_aes_start(struct mtk_cryp *cryp, struct mtk_aes_rec *aes)
@@ -1094,6 +1095,13 @@ static struct aead_alg aes_gcm_alg = {
},
};
+static void mtk_aes_queue_task(unsigned long data)
+{
+ struct mtk_aes_rec *aes = (struct mtk_aes_rec *)data;
+
+ mtk_aes_handle_queue(aes->cryp, aes->id, NULL);
+}
+
static void mtk_aes_done_task(unsigned long data)
{
struct mtk_aes_rec *aes = (struct mtk_aes_rec *)data;
@@ -1116,7 +1124,7 @@ static irqreturn_t mtk_aes_irq(int irq, void *dev_id)
mtk_aes_write(cryp, RDR_THRESH(aes->id),
MTK_RDR_PROC_THRESH | MTK_RDR_PROC_MODE);
- tasklet_schedule(&aes->task);
+ tasklet_schedule(&aes->done_task);
} else {
dev_warn(cryp->dev, "AES interrupt when no active requests.\n");
}
@@ -1149,7 +1157,9 @@ static int mtk_aes_record_init(struct mtk_cryp *cryp)
spin_lock_init(&aes[i]->lock);
crypto_init_queue(&aes[i]->queue, AES_QUEUE_SIZE);
- tasklet_init(&aes[i]->task, mtk_aes_done_task,
+ tasklet_init(&aes[i]->queue_task, mtk_aes_queue_task,
+ (unsigned long)aes[i]);
+ tasklet_init(&aes[i]->done_task, mtk_aes_done_task,
(unsigned long)aes[i]);
}
@@ -1173,7 +1183,9 @@ static void mtk_aes_record_free(struct mtk_cryp *cryp)
int i;
for (i = 0; i < MTK_REC_NUM; i++) {
- tasklet_kill(&cryp->aes[i]->task);
+ tasklet_kill(&cryp->aes[i]->done_task);
+ tasklet_kill(&cryp->aes[i]->queue_task);
+
free_page((unsigned long)cryp->aes[i]->buf);
kfree(cryp->aes[i]);
}
diff --git a/drivers/crypto/mediatek/mtk-platform.h b/drivers/crypto/mediatek/mtk-platform.h
index 218e30d1828a..cc98c2cdb339 100644
--- a/drivers/crypto/mediatek/mtk-platform.h
+++ b/drivers/crypto/mediatek/mtk-platform.h
@@ -128,7 +128,8 @@ typedef int (*mtk_aes_fn)(struct mtk_cryp *cryp, struct mtk_aes_rec *aes);
* @cryp: pointer to Cryptographic device
* @queue: crypto request queue
* @areq: pointer to async request
- * @task: the tasklet is use in AES interrupt
+ * @done_task: the tasklet is use in AES interrupt
+ * @queue_task: the tasklet is used to dequeue request
* @ctx: pointer to current context
* @src: the structure that holds source sg list info
* @dst: the structure that holds destination sg list info
@@ -147,7 +148,8 @@ struct mtk_aes_rec {
struct mtk_cryp *cryp;
struct crypto_queue queue;
struct crypto_async_request *areq;
- struct tasklet_struct task;
+ struct tasklet_struct done_task;
+ struct tasklet_struct queue_task;
struct mtk_aes_base_ctx *ctx;
struct mtk_aes_dma src;
struct mtk_aes_dma dst;
@@ -171,7 +173,8 @@ struct mtk_aes_rec {
* @cryp: pointer to Cryptographic device
* @queue: crypto request queue
* @req: pointer to ahash request
- * @task: the tasklet is use in SHA interrupt
+ * @done_task: the tasklet is use in SHA interrupt
+ * @queue_task: the tasklet is used to dequeue request
* @id: the current use of ring
* @flags: it's describing SHA operation state
* @lock: the async queue lock
@@ -182,7 +185,8 @@ struct mtk_sha_rec {
struct mtk_cryp *cryp;
struct crypto_queue queue;
struct ahash_request *req;
- struct tasklet_struct task;
+ struct tasklet_struct done_task;
+ struct tasklet_struct queue_task;
u8 id;
unsigned long flags;
diff --git a/drivers/crypto/mediatek/mtk-sha.c b/drivers/crypto/mediatek/mtk-sha.c
index 0884d6243cbc..dd3582b6a1a5 100644
--- a/drivers/crypto/mediatek/mtk-sha.c
+++ b/drivers/crypto/mediatek/mtk-sha.c
@@ -661,7 +661,7 @@ static void mtk_sha_finish_req(struct mtk_cryp *cryp,
sha->req->base.complete(&sha->req->base, err);
/* Handle new request */
- mtk_sha_handle_queue(cryp, sha->id - MTK_RING2, NULL);
+ tasklet_schedule(&sha->queue_task);
}
static int mtk_sha_handle_queue(struct mtk_cryp *cryp, u8 id,
@@ -1183,6 +1183,13 @@ static struct ahash_alg algs_sha384_sha512[] = {
},
};
+static void mtk_sha_queue_task(unsigned long data)
+{
+ struct mtk_sha_rec *sha = (struct mtk_sha_rec *)data;
+
+ mtk_sha_handle_queue(sha->cryp, sha->id - MTK_RING2, NULL);
+}
+
static void mtk_sha_done_task(unsigned long data)
{
struct mtk_sha_rec *sha = (struct mtk_sha_rec *)data;
@@ -1205,7 +1212,7 @@ static irqreturn_t mtk_sha_irq(int irq, void *dev_id)
mtk_sha_write(cryp, RDR_THRESH(sha->id),
MTK_RDR_PROC_THRESH | MTK_RDR_PROC_MODE);
- tasklet_schedule(&sha->task);
+ tasklet_schedule(&sha->done_task);
} else {
dev_warn(cryp->dev, "SHA interrupt when no active requests.\n");
}
@@ -1231,7 +1238,9 @@ static int mtk_sha_record_init(struct mtk_cryp *cryp)
spin_lock_init(&sha[i]->lock);
crypto_init_queue(&sha[i]->queue, SHA_QUEUE_SIZE);
- tasklet_init(&sha[i]->task, mtk_sha_done_task,
+ tasklet_init(&sha[i]->queue_task, mtk_sha_queue_task,
+ (unsigned long)sha[i]);
+ tasklet_init(&sha[i]->done_task, mtk_sha_done_task,
(unsigned long)sha[i]);
}
@@ -1254,7 +1263,9 @@ static void mtk_sha_record_free(struct mtk_cryp *cryp)
int i;
for (i = 0; i < MTK_REC_NUM; i++) {
- tasklet_kill(&cryp->sha[i]->task);
+ tasklet_kill(&cryp->sha[i]->done_task);
+ tasklet_kill(&cryp->sha[i]->queue_task);
+
kfree(cryp->sha[i]);
}
}