Commit 2786cee8 authored by Romain Perier's avatar Romain Perier Committed by Herbert Xu

crypto: marvell - Move SRAM I/O operations to step functions

Currently the crypto requests were sent to engines sequentially.
This commit moves the SRAM I/O operations from the prepare to the step
functions. It provides flexibility for future works and allow to prepare
a request while the engine is running.
Signed-off-by: default avatarRomain Perier <romain.perier@free-electrons.com>
Acked-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 1bf6682c
...@@ -89,6 +89,9 @@ static void mv_cesa_ablkcipher_std_step(struct ablkcipher_request *req) ...@@ -89,6 +89,9 @@ static void mv_cesa_ablkcipher_std_step(struct ablkcipher_request *req)
size_t len = min_t(size_t, req->nbytes - sreq->offset, size_t len = min_t(size_t, req->nbytes - sreq->offset,
CESA_SA_SRAM_PAYLOAD_SIZE); CESA_SA_SRAM_PAYLOAD_SIZE);
mv_cesa_adjust_op(engine, &sreq->op);
memcpy_toio(engine->sram, &sreq->op, sizeof(sreq->op));
len = sg_pcopy_to_buffer(req->src, creq->src_nents, len = sg_pcopy_to_buffer(req->src, creq->src_nents,
engine->sram + CESA_SA_DATA_SRAM_OFFSET, engine->sram + CESA_SA_DATA_SRAM_OFFSET,
len, sreq->offset); len, sreq->offset);
...@@ -177,12 +180,9 @@ mv_cesa_ablkcipher_std_prepare(struct ablkcipher_request *req) ...@@ -177,12 +180,9 @@ mv_cesa_ablkcipher_std_prepare(struct ablkcipher_request *req)
{ {
struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req); struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
struct mv_cesa_ablkcipher_std_req *sreq = &creq->std; struct mv_cesa_ablkcipher_std_req *sreq = &creq->std;
struct mv_cesa_engine *engine = creq->base.engine;
sreq->size = 0; sreq->size = 0;
sreq->offset = 0; sreq->offset = 0;
mv_cesa_adjust_op(engine, &sreq->op);
memcpy_toio(engine->sram, &sreq->op, sizeof(sreq->op));
} }
static inline void mv_cesa_ablkcipher_prepare(struct crypto_async_request *req, static inline void mv_cesa_ablkcipher_prepare(struct crypto_async_request *req,
......
...@@ -162,6 +162,15 @@ static void mv_cesa_ahash_std_step(struct ahash_request *req) ...@@ -162,6 +162,15 @@ static void mv_cesa_ahash_std_step(struct ahash_request *req)
unsigned int new_cache_ptr = 0; unsigned int new_cache_ptr = 0;
u32 frag_mode; u32 frag_mode;
size_t len; size_t len;
unsigned int digsize;
int i;
mv_cesa_adjust_op(engine, &creq->op_tmpl);
memcpy_toio(engine->sram, &creq->op_tmpl, sizeof(creq->op_tmpl));
digsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(req));
for (i = 0; i < digsize / 4; i++)
writel_relaxed(creq->state[i], engine->regs + CESA_IVDIG(i));
if (creq->cache_ptr) if (creq->cache_ptr)
memcpy_toio(engine->sram + CESA_SA_DATA_SRAM_OFFSET, memcpy_toio(engine->sram + CESA_SA_DATA_SRAM_OFFSET,
...@@ -265,11 +274,8 @@ static void mv_cesa_ahash_std_prepare(struct ahash_request *req) ...@@ -265,11 +274,8 @@ static void mv_cesa_ahash_std_prepare(struct ahash_request *req)
{ {
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req); struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
struct mv_cesa_ahash_std_req *sreq = &creq->req.std; struct mv_cesa_ahash_std_req *sreq = &creq->req.std;
struct mv_cesa_engine *engine = creq->base.engine;
sreq->offset = 0; sreq->offset = 0;
mv_cesa_adjust_op(engine, &creq->op_tmpl);
memcpy_toio(engine->sram, &creq->op_tmpl, sizeof(creq->op_tmpl));
} }
static void mv_cesa_ahash_step(struct crypto_async_request *req) static void mv_cesa_ahash_step(struct crypto_async_request *req)
...@@ -336,8 +342,6 @@ static void mv_cesa_ahash_prepare(struct crypto_async_request *req, ...@@ -336,8 +342,6 @@ static void mv_cesa_ahash_prepare(struct crypto_async_request *req,
{ {
struct ahash_request *ahashreq = ahash_request_cast(req); struct ahash_request *ahashreq = ahash_request_cast(req);
struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq); struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq);
unsigned int digsize;
int i;
creq->base.engine = engine; creq->base.engine = engine;
...@@ -345,10 +349,6 @@ static void mv_cesa_ahash_prepare(struct crypto_async_request *req, ...@@ -345,10 +349,6 @@ static void mv_cesa_ahash_prepare(struct crypto_async_request *req,
mv_cesa_ahash_dma_prepare(ahashreq); mv_cesa_ahash_dma_prepare(ahashreq);
else else
mv_cesa_ahash_std_prepare(ahashreq); mv_cesa_ahash_std_prepare(ahashreq);
digsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(ahashreq));
for (i = 0; i < digsize / 4; i++)
writel_relaxed(creq->state[i], engine->regs + CESA_IVDIG(i));
} }
static void mv_cesa_ahash_req_cleanup(struct crypto_async_request *req) static void mv_cesa_ahash_req_cleanup(struct crypto_async_request *req)
......
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