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crypto: caam - fix "failed to check map error" DMA warnings
Use dma_mapping_error for every dma_map_single / dma_map_page. Signed-off-by: Horia Geanta <horia.geanta@freescale.com> Acked-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
parent
71c65f7c90
commit
ce57208528
3 changed files with 163 additions and 28 deletions
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@ -1313,8 +1313,13 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
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DMA_FROM_DEVICE, dst_chained);
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}
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/* Check if data are contiguous */
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iv_dma = dma_map_single(jrdev, req->iv, ivsize, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, iv_dma)) {
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dev_err(jrdev, "unable to map IV\n");
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return ERR_PTR(-ENOMEM);
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}
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/* Check if data are contiguous */
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if (assoc_nents || sg_dma_address(req->assoc) + req->assoclen !=
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iv_dma || src_nents || iv_dma + ivsize !=
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sg_dma_address(req->src)) {
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@ -1369,6 +1374,10 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
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}
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return ERR_PTR(-ENOMEM);
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}
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return edesc;
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}
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@ -1494,8 +1503,13 @@ static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
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DMA_FROM_DEVICE, dst_chained);
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}
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/* Check if data are contiguous */
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iv_dma = dma_map_single(jrdev, greq->giv, ivsize, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, iv_dma)) {
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dev_err(jrdev, "unable to map IV\n");
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return ERR_PTR(-ENOMEM);
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}
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/* Check if data are contiguous */
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if (assoc_nents || sg_dma_address(req->assoc) + req->assoclen !=
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iv_dma || src_nents || iv_dma + ivsize != sg_dma_address(req->src))
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contig &= ~GIV_SRC_CONTIG;
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@ -1559,6 +1573,10 @@ static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
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}
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return ERR_PTR(-ENOMEM);
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}
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return edesc;
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}
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@ -1650,11 +1668,16 @@ static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request
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DMA_FROM_DEVICE, dst_chained);
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}
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iv_dma = dma_map_single(jrdev, req->info, ivsize, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, iv_dma)) {
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dev_err(jrdev, "unable to map IV\n");
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return ERR_PTR(-ENOMEM);
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}
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/*
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* Check if iv can be contiguous with source and destination.
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* If so, include it. If not, create scatterlist.
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*/
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iv_dma = dma_map_single(jrdev, req->info, ivsize, DMA_TO_DEVICE);
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if (!src_nents && iv_dma + ivsize == sg_dma_address(req->src))
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iv_contig = true;
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else
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@ -1693,6 +1716,11 @@ static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return ERR_PTR(-ENOMEM);
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}
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edesc->iv_dma = iv_dma;
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#ifdef DEBUG
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@ -137,13 +137,20 @@ struct caam_hash_state {
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/* Common job descriptor seq in/out ptr routines */
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/* Map state->caam_ctx, and append seq_out_ptr command that points to it */
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static inline void map_seq_out_ptr_ctx(u32 *desc, struct device *jrdev,
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struct caam_hash_state *state,
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int ctx_len)
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static inline int map_seq_out_ptr_ctx(u32 *desc, struct device *jrdev,
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struct caam_hash_state *state,
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int ctx_len)
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{
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state->ctx_dma = dma_map_single(jrdev, state->caam_ctx,
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ctx_len, DMA_FROM_DEVICE);
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if (dma_mapping_error(jrdev, state->ctx_dma)) {
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dev_err(jrdev, "unable to map ctx\n");
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return -ENOMEM;
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}
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append_seq_out_ptr(desc, state->ctx_dma, ctx_len, 0);
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return 0;
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}
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/* Map req->result, and append seq_out_ptr command that points to it */
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@ -201,14 +208,19 @@ try_buf_map_to_sec4_sg(struct device *jrdev, struct sec4_sg_entry *sec4_sg,
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}
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/* Map state->caam_ctx, and add it to link table */
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static inline void ctx_map_to_sec4_sg(u32 *desc, struct device *jrdev,
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struct caam_hash_state *state,
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int ctx_len,
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struct sec4_sg_entry *sec4_sg,
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u32 flag)
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static inline int ctx_map_to_sec4_sg(u32 *desc, struct device *jrdev,
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struct caam_hash_state *state, int ctx_len,
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struct sec4_sg_entry *sec4_sg, u32 flag)
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{
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state->ctx_dma = dma_map_single(jrdev, state->caam_ctx, ctx_len, flag);
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if (dma_mapping_error(jrdev, state->ctx_dma)) {
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dev_err(jrdev, "unable to map ctx\n");
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return -ENOMEM;
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}
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dma_to_sec4_sg_one(sec4_sg, state->ctx_dma, ctx_len, 0);
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return 0;
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}
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/* Common shared descriptor commands */
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@ -809,8 +821,10 @@ static int ahash_update_ctx(struct ahash_request *req)
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edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
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DESC_JOB_IO_LEN;
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ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
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edesc->sec4_sg, DMA_BIDIRECTIONAL);
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ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
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edesc->sec4_sg, DMA_BIDIRECTIONAL);
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if (ret)
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return ret;
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state->buf_dma = try_buf_map_to_sec4_sg(jrdev,
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edesc->sec4_sg + 1,
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@ -839,6 +853,10 @@ static int ahash_update_ctx(struct ahash_request *req)
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes,
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DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return -ENOMEM;
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}
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append_seq_in_ptr(desc, edesc->sec4_sg_dma, ctx->ctx_len +
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to_hash, LDST_SGF);
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@ -914,8 +932,10 @@ static int ahash_final_ctx(struct ahash_request *req)
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DESC_JOB_IO_LEN;
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edesc->src_nents = 0;
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ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len, edesc->sec4_sg,
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DMA_TO_DEVICE);
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ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
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edesc->sec4_sg, DMA_TO_DEVICE);
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if (ret)
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return ret;
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state->buf_dma = try_buf_map_to_sec4_sg(jrdev, edesc->sec4_sg + 1,
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buf, state->buf_dma, buflen,
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@ -924,12 +944,20 @@ static int ahash_final_ctx(struct ahash_request *req)
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return -ENOMEM;
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}
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append_seq_in_ptr(desc, edesc->sec4_sg_dma, ctx->ctx_len + buflen,
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LDST_SGF);
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edesc->dst_dma = map_seq_out_ptr_result(desc, jrdev, req->result,
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digestsize);
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if (dma_mapping_error(jrdev, edesc->dst_dma)) {
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dev_err(jrdev, "unable to map dst\n");
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return -ENOMEM;
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}
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
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@ -992,8 +1020,10 @@ static int ahash_finup_ctx(struct ahash_request *req)
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edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
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DESC_JOB_IO_LEN;
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ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len, edesc->sec4_sg,
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DMA_TO_DEVICE);
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ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
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edesc->sec4_sg, DMA_TO_DEVICE);
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if (ret)
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return ret;
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state->buf_dma = try_buf_map_to_sec4_sg(jrdev, edesc->sec4_sg + 1,
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buf, state->buf_dma, buflen,
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@ -1004,12 +1034,20 @@ static int ahash_finup_ctx(struct ahash_request *req)
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return -ENOMEM;
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}
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append_seq_in_ptr(desc, edesc->sec4_sg_dma, ctx->ctx_len +
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buflen + req->nbytes, LDST_SGF);
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edesc->dst_dma = map_seq_out_ptr_result(desc, jrdev, req->result,
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digestsize);
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if (dma_mapping_error(jrdev, edesc->dst_dma)) {
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dev_err(jrdev, "unable to map dst\n");
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return -ENOMEM;
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}
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
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@ -1070,6 +1108,10 @@ static int ahash_digest(struct ahash_request *req)
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sg_to_sec4_sg_last(req->src, src_nents, edesc->sec4_sg, 0);
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return -ENOMEM;
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}
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src_dma = edesc->sec4_sg_dma;
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options = LDST_SGF;
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} else {
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@ -1080,6 +1122,10 @@ static int ahash_digest(struct ahash_request *req)
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edesc->dst_dma = map_seq_out_ptr_result(desc, jrdev, req->result,
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digestsize);
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if (dma_mapping_error(jrdev, edesc->dst_dma)) {
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dev_err(jrdev, "unable to map dst\n");
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return -ENOMEM;
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}
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
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@ -1128,11 +1174,19 @@ static int ahash_final_no_ctx(struct ahash_request *req)
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init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);
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state->buf_dma = dma_map_single(jrdev, buf, buflen, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, state->buf_dma)) {
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dev_err(jrdev, "unable to map src\n");
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return -ENOMEM;
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}
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append_seq_in_ptr(desc, state->buf_dma, buflen, 0);
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edesc->dst_dma = map_seq_out_ptr_result(desc, jrdev, req->result,
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digestsize);
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if (dma_mapping_error(jrdev, edesc->dst_dma)) {
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dev_err(jrdev, "unable to map dst\n");
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return -ENOMEM;
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}
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edesc->src_nents = 0;
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#ifdef DEBUG
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@ -1219,10 +1273,16 @@ static int ahash_update_no_ctx(struct ahash_request *req)
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes,
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DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return -ENOMEM;
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}
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append_seq_in_ptr(desc, edesc->sec4_sg_dma, to_hash, LDST_SGF);
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map_seq_out_ptr_ctx(desc, jrdev, state, ctx->ctx_len);
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ret = map_seq_out_ptr_ctx(desc, jrdev, state, ctx->ctx_len);
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if (ret)
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return ret;
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
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@ -1311,12 +1371,20 @@ static int ahash_finup_no_ctx(struct ahash_request *req)
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edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
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sec4_sg_bytes, DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return -ENOMEM;
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}
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append_seq_in_ptr(desc, edesc->sec4_sg_dma, buflen +
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req->nbytes, LDST_SGF);
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edesc->dst_dma = map_seq_out_ptr_result(desc, jrdev, req->result,
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digestsize);
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if (dma_mapping_error(jrdev, edesc->dst_dma)) {
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dev_err(jrdev, "unable to map dst\n");
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return -ENOMEM;
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}
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
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@ -1393,6 +1461,10 @@ static int ahash_update_first(struct ahash_request *req)
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edesc->sec4_sg,
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sec4_sg_bytes,
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DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
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dev_err(jrdev, "unable to map S/G table\n");
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return -ENOMEM;
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}
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src_dma = edesc->sec4_sg_dma;
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options = LDST_SGF;
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} else {
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@ -1410,7 +1482,9 @@ static int ahash_update_first(struct ahash_request *req)
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append_seq_in_ptr(desc, src_dma, to_hash, options);
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map_seq_out_ptr_ctx(desc, jrdev, state, ctx->ctx_len);
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ret = map_seq_out_ptr_ctx(desc, jrdev, state, ctx->ctx_len);
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if (ret)
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return ret;
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
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@ -185,7 +185,7 @@ static int caam_read(struct hwrng *rng, void *data, size_t max, bool wait)
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max - copied_idx, false);
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}
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static inline void rng_create_sh_desc(struct caam_rng_ctx *ctx)
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static inline int rng_create_sh_desc(struct caam_rng_ctx *ctx)
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{
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struct device *jrdev = ctx->jrdev;
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u32 *desc = ctx->sh_desc;
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@ -203,13 +203,18 @@ static inline void rng_create_sh_desc(struct caam_rng_ctx *ctx)
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ctx->sh_desc_dma = dma_map_single(jrdev, desc, desc_bytes(desc),
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DMA_TO_DEVICE);
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if (dma_mapping_error(jrdev, ctx->sh_desc_dma)) {
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dev_err(jrdev, "unable to map shared descriptor\n");
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return -ENOMEM;
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}
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "rng shdesc@: ", DUMP_PREFIX_ADDRESS, 16, 4,
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desc, desc_bytes(desc), 1);
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#endif
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return 0;
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}
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static inline void rng_create_job_desc(struct caam_rng_ctx *ctx, int buf_id)
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static inline int rng_create_job_desc(struct caam_rng_ctx *ctx, int buf_id)
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{
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struct device *jrdev = ctx->jrdev;
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struct buf_data *bd = &ctx->bufs[buf_id];
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@ -220,12 +225,17 @@ static inline void rng_create_job_desc(struct caam_rng_ctx *ctx, int buf_id)
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HDR_REVERSE);
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bd->addr = dma_map_single(jrdev, bd->buf, RN_BUF_SIZE, DMA_FROM_DEVICE);
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if (dma_mapping_error(jrdev, bd->addr)) {
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dev_err(jrdev, "unable to map dst\n");
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return -ENOMEM;
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}
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append_seq_out_ptr_intlen(desc, bd->addr, RN_BUF_SIZE, 0);
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "rng job desc@: ", DUMP_PREFIX_ADDRESS, 16, 4,
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desc, desc_bytes(desc), 1);
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#endif
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return 0;
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}
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static void caam_cleanup(struct hwrng *rng)
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@ -242,24 +252,44 @@ static void caam_cleanup(struct hwrng *rng)
|
|||
rng_unmap_ctx(rng_ctx);
|
||||
}
|
||||
|
||||
static void caam_init_buf(struct caam_rng_ctx *ctx, int buf_id)
|
||||
static int caam_init_buf(struct caam_rng_ctx *ctx, int buf_id)
|
||||
{
|
||||
struct buf_data *bd = &ctx->bufs[buf_id];
|
||||
int err;
|
||||
|
||||
err = rng_create_job_desc(ctx, buf_id);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
rng_create_job_desc(ctx, buf_id);
|
||||
atomic_set(&bd->empty, BUF_EMPTY);
|
||||
submit_job(ctx, buf_id == ctx->current_buf);
|
||||
wait_for_completion(&bd->filled);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void caam_init_rng(struct caam_rng_ctx *ctx, struct device *jrdev)
|
||||
static int caam_init_rng(struct caam_rng_ctx *ctx, struct device *jrdev)
|
||||
{
|
||||
int err;
|
||||
|
||||
ctx->jrdev = jrdev;
|
||||
rng_create_sh_desc(ctx);
|
||||
|
||||
err = rng_create_sh_desc(ctx);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
ctx->current_buf = 0;
|
||||
ctx->cur_buf_idx = 0;
|
||||
caam_init_buf(ctx, 0);
|
||||
caam_init_buf(ctx, 1);
|
||||
|
||||
err = caam_init_buf(ctx, 0);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
err = caam_init_buf(ctx, 1);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct hwrng caam_rng = {
|
||||
|
@ -282,6 +312,7 @@ static int __init caam_rng_init(void)
|
|||
struct platform_device *pdev;
|
||||
struct device *ctrldev;
|
||||
void *priv;
|
||||
int err;
|
||||
|
||||
dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
|
||||
if (!dev_node) {
|
||||
|
@ -315,7 +346,9 @@ static int __init caam_rng_init(void)
|
|||
rng_ctx = kmalloc(sizeof(struct caam_rng_ctx), GFP_DMA);
|
||||
if (!rng_ctx)
|
||||
return -ENOMEM;
|
||||
caam_init_rng(rng_ctx, dev);
|
||||
err = caam_init_rng(rng_ctx, dev);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
dev_info(dev, "registering rng-caam\n");
|
||||
return hwrng_register(&caam_rng);
|
||||
|
|
Loading…
Reference in a new issue