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crypto: caam - move job descriptor initialisation to ahash_edesc_alloc() 

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Russell King 2016-08-08 18:05:13 +01:00 committed by Herbert Xu
parent 5588d039b5
commit 30a43b4498
1 changed files with 34 additions and 50 deletions
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84
drivers/crypto/caam/caamhash.c
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@ -770,7 +770,9 @@ static void ahash_done_ctx_dst(struct device *jrdev, u32 *desc, u32 err,
* and space for hardware scatter table containing sg_num entries.
*/
static struct ahash_edesc *ahash_edesc_alloc(struct caam_hash_ctx *ctx,
int sg_num, gfp_t flags)
int sg_num, u32 *sh_desc,
dma_addr_t sh_desc_dma,
gfp_t flags)
{
struct ahash_edesc *edesc;
unsigned int sg_size = sg_num * sizeof(struct sec4_sg_entry);
@ -781,6 +783,9 @@ static struct ahash_edesc *ahash_edesc_alloc(struct caam_hash_ctx *ctx,
return NULL;
}
init_job_desc_shared(edesc->hw_desc, sh_desc_dma, desc_len(sh_desc),
HDR_SHARE_DEFER | HDR_REVERSE);
return edesc;
}
@ -799,12 +804,10 @@ static int ahash_update_ctx(struct ahash_request *req)
int *next_buflen = state->current_buf ? &state->buflen_0 :
&state->buflen_1, last_buflen;
int in_len = *buflen + req->nbytes, to_hash;
u32 *sh_desc = ctx->sh_desc_update, *desc;
dma_addr_t ptr = ctx->sh_desc_update_dma;
u32 *desc;
int src_nents, mapped_nents, sec4_sg_bytes, sec4_sg_src_index;
struct ahash_edesc *edesc;
int ret = 0;
int sh_len;
last_buflen = *next_buflen;
*next_buflen = in_len & (crypto_tfm_alg_blocksize(&ahash->base) - 1);
@ -838,7 +841,8 @@ static int ahash_update_ctx(struct ahash_request *req)
* link tables
*/
edesc = ahash_edesc_alloc(ctx, sec4_sg_src_index + mapped_nents,
flags);
ctx->sh_desc_update,
ctx->sh_desc_update_dma, flags);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@ -872,10 +876,7 @@ static int ahash_update_ctx(struct ahash_request *req)
state->current_buf = !state->current_buf;
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER |
HDR_REVERSE);
edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
sec4_sg_bytes,
@ -936,25 +937,23 @@ static int ahash_final_ctx(struct ahash_request *req)
int buflen = state->current_buf ? state->buflen_1 : state->buflen_0;
int last_buflen = state->current_buf ? state->buflen_0 :
state->buflen_1;
u32 *sh_desc = ctx->sh_desc_fin, *desc;
dma_addr_t ptr = ctx->sh_desc_fin_dma;
u32 *desc;
int sec4_sg_bytes, sec4_sg_src_index;
int digestsize = crypto_ahash_digestsize(ahash);
struct ahash_edesc *edesc;
int ret = 0;
int sh_len;
sec4_sg_src_index = 1 + (buflen ? 1 : 0);
sec4_sg_bytes = sec4_sg_src_index * sizeof(struct sec4_sg_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = ahash_edesc_alloc(ctx, sec4_sg_src_index, flags);
edesc = ahash_edesc_alloc(ctx, sec4_sg_src_index,
ctx->sh_desc_fin, ctx->sh_desc_fin_dma,
flags);
if (!edesc)
return -ENOMEM;
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->src_nents = 0;
@ -1018,14 +1017,12 @@ static int ahash_finup_ctx(struct ahash_request *req)
int buflen = state->current_buf ? state->buflen_1 : state->buflen_0;
int last_buflen = state->current_buf ? state->buflen_0 :
state->buflen_1;
u32 *sh_desc = ctx->sh_desc_finup, *desc;
dma_addr_t ptr = ctx->sh_desc_finup_dma;
u32 *desc;
int sec4_sg_bytes, sec4_sg_src_index;
int src_nents, mapped_nents;
int digestsize = crypto_ahash_digestsize(ahash);
struct ahash_edesc *edesc;
int ret = 0;
int sh_len;
src_nents = sg_nents_for_len(req->src, req->nbytes);
if (src_nents < 0) {
@ -1050,15 +1047,14 @@ static int ahash_finup_ctx(struct ahash_request *req)
/* allocate space for base edesc and hw desc commands, link tables */
edesc = ahash_edesc_alloc(ctx, sec4_sg_src_index + mapped_nents,
ctx->sh_desc_finup, ctx->sh_desc_finup_dma,
flags);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
}
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
@ -1118,15 +1114,13 @@ static int ahash_digest(struct ahash_request *req)
struct device *jrdev = ctx->jrdev;
gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC;
u32 *sh_desc = ctx->sh_desc_digest, *desc;
dma_addr_t ptr = ctx->sh_desc_digest_dma;
u32 *desc;
int digestsize = crypto_ahash_digestsize(ahash);
int src_nents, mapped_nents, sec4_sg_bytes;
dma_addr_t src_dma;
struct ahash_edesc *edesc;
int ret = 0;
u32 options;
int sh_len;
src_nents = sg_nents_for_len(req->src, req->nbytes);
if (src_nents < 0) {
@ -1152,6 +1146,7 @@ static int ahash_digest(struct ahash_request *req)
/* allocate space for base edesc and hw desc commands, link tables */
edesc = ahash_edesc_alloc(ctx, mapped_nents > 1 ? mapped_nents : 0,
ctx->sh_desc_digest, ctx->sh_desc_digest_dma,
flags);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
@ -1161,9 +1156,7 @@ static int ahash_digest(struct ahash_request *req)
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->src_nents = src_nents;
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);
if (src_nents > 1) {
sg_to_sec4_sg_last(req->src, mapped_nents, edesc->sec4_sg, 0);
@ -1219,21 +1212,18 @@ static int ahash_final_no_ctx(struct ahash_request *req)
CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC;
u8 *buf = state->current_buf ? state->buf_1 : state->buf_0;
int buflen = state->current_buf ? state->buflen_1 : state->buflen_0;
u32 *sh_desc = ctx->sh_desc_digest, *desc;
dma_addr_t ptr = ctx->sh_desc_digest_dma;
u32 *desc;
int digestsize = crypto_ahash_digestsize(ahash);
struct ahash_edesc *edesc;
int ret = 0;
int sh_len;
/* allocate space for base edesc and hw desc commands, link tables */
edesc = ahash_edesc_alloc(ctx, 0, flags);
edesc = ahash_edesc_alloc(ctx, 0, ctx->sh_desc_digest,
ctx->sh_desc_digest_dma, flags);
if (!edesc)
return -ENOMEM;
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);
state->buf_dma = dma_map_single(jrdev, buf, buflen, DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, state->buf_dma)) {
@ -1288,10 +1278,8 @@ static int ahash_update_no_ctx(struct ahash_request *req)
int in_len = *buflen + req->nbytes, to_hash;
int sec4_sg_bytes, src_nents, mapped_nents;
struct ahash_edesc *edesc;
u32 *desc, *sh_desc = ctx->sh_desc_update_first;
dma_addr_t ptr = ctx->sh_desc_update_first_dma;
u32 *desc;
int ret = 0;
int sh_len;
*next_buflen = in_len & (crypto_tfm_alg_blocksize(&ahash->base) - 1);
to_hash = in_len - *next_buflen;
@ -1322,7 +1310,10 @@ static int ahash_update_no_ctx(struct ahash_request *req)
* allocate space for base edesc and hw desc commands,
* link tables
*/
edesc = ahash_edesc_alloc(ctx, 1 + mapped_nents, flags);
edesc = ahash_edesc_alloc(ctx, 1 + mapped_nents,
ctx->sh_desc_update_first,
ctx->sh_desc_update_first_dma,
flags);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@ -1345,10 +1336,7 @@ static int ahash_update_no_ctx(struct ahash_request *req)
state->current_buf = !state->current_buf;
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER |
HDR_REVERSE);
edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
sec4_sg_bytes,
@ -1414,12 +1402,10 @@ static int ahash_finup_no_ctx(struct ahash_request *req)
int buflen = state->current_buf ? state->buflen_1 : state->buflen_0;
int last_buflen = state->current_buf ? state->buflen_0 :
state->buflen_1;
u32 *sh_desc = ctx->sh_desc_digest, *desc;
dma_addr_t ptr = ctx->sh_desc_digest_dma;
u32 *desc;
int sec4_sg_bytes, sec4_sg_src_index, src_nents, mapped_nents;
int digestsize = crypto_ahash_digestsize(ahash);
struct ahash_edesc *edesc;
int sh_len;
int ret = 0;
src_nents = sg_nents_for_len(req->src, req->nbytes);
@ -1444,15 +1430,15 @@ static int ahash_finup_no_ctx(struct ahash_request *req)
sizeof(struct sec4_sg_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = ahash_edesc_alloc(ctx, sec4_sg_src_index + mapped_nents, flags);
edesc = ahash_edesc_alloc(ctx, sec4_sg_src_index + mapped_nents,
ctx->sh_desc_digest, ctx->sh_desc_digest_dma,
flags);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
}
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
@ -1513,14 +1499,12 @@ static int ahash_update_first(struct ahash_request *req)
int *next_buflen = state->current_buf ?
&state->buflen_1 : &state->buflen_0;
int to_hash;
u32 *sh_desc = ctx->sh_desc_update_first, *desc;
dma_addr_t ptr = ctx->sh_desc_update_first_dma;
u32 *desc;
int sec4_sg_bytes, src_nents, mapped_nents;
dma_addr_t src_dma;
u32 options;
struct ahash_edesc *edesc;
int ret = 0;
int sh_len;
*next_buflen = req->nbytes & (crypto_tfm_alg_blocksize(&ahash->base) -
1);
@ -1555,7 +1539,10 @@ static int ahash_update_first(struct ahash_request *req)
* link tables
*/
edesc = ahash_edesc_alloc(ctx, mapped_nents > 1 ?
mapped_nents : 0, flags);
mapped_nents : 0,
ctx->sh_desc_update_first,
ctx->sh_desc_update_first_dma,
flags);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@ -1588,10 +1575,7 @@ static int ahash_update_first(struct ahash_request *req)
scatterwalk_map_and_copy(next_buf, req->src, to_hash,
*next_buflen, 0);
sh_len = desc_len(sh_desc);
desc = edesc->hw_desc;
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER |
HDR_REVERSE);
append_seq_in_ptr(desc, src_dma, to_hash, options);