From: Russell King Subject: [PATCH RFC 09/11] crypto: caam: move job descriptor initialisation to ahash_edesc_alloc() Date: Mon, 07 Dec 2015 19:12:41 +0000 Message-ID: References: <20151207191134.GV8644@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Cc: "David S. Miller" , linux-crypto@vger.kernel.org To: Fabio Estevam , Herbert Xu Return-path: Received: from pandora.arm.linux.org.uk ([78.32.30.218]:60537 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932307AbbLGTMr (ORCPT ); Mon, 7 Dec 2015 14:12:47 -0500 In-Reply-To: <20151207191134.GV8644@n2100.arm.linux.org.uk> Content-Disposition: inline Sender: linux-crypto-owner@vger.kernel.org List-ID: Signed-off-by: Russell King --- drivers/crypto/caam/caamhash.c | 84 +++++++++++++++++------------------------- 1 file changed, 34 insertions(+), 50 deletions(-) diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index f35f4cfc27a7..241268d108ec 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -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); @@ -833,7 +836,8 @@ 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; @@ -871,10 +875,7 @@ 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, @@ -935,25 +936,23 @@ 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; @@ -1020,14 +1019,12 @@ 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); mapped_nents = dma_map_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE); @@ -1042,15 +1039,14 @@ 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; @@ -1114,15 +1110,13 @@ 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); mapped_nents = dma_map_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE); @@ -1138,6 +1132,7 @@ 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); @@ -1147,9 +1142,7 @@ 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); @@ -1205,21 +1198,18 @@ 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)) { @@ -1274,10 +1264,8 @@ 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; @@ -1299,7 +1287,10 @@ 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; @@ -1322,10 +1313,7 @@ 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, @@ -1395,12 +1383,10 @@ 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); @@ -1415,15 +1401,15 @@ 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; @@ -1484,14 +1470,12 @@ 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); @@ -1517,7 +1501,10 @@ 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; @@ -1552,10 +1539,7 @@ 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); -- 2.1.0