diff options
Diffstat (limited to 'drivers/crypto/ccree')
-rw-r--r-- | drivers/crypto/ccree/cc_buffer_mgr.c | 36 | ||||
-rw-r--r-- | drivers/crypto/ccree/cc_cipher.c | 2 | ||||
-rw-r--r-- | drivers/crypto/ccree/cc_driver.c | 37 | ||||
-rw-r--r-- | drivers/crypto/ccree/cc_pm.c | 2 | ||||
-rw-r--r-- | drivers/crypto/ccree/cc_request_mgr.c | 1 |
5 files changed, 42 insertions, 36 deletions
diff --git a/drivers/crypto/ccree/cc_buffer_mgr.c b/drivers/crypto/ccree/cc_buffer_mgr.c index a5e041d9d2cf..9efd88f871d1 100644 --- a/drivers/crypto/ccree/cc_buffer_mgr.c +++ b/drivers/crypto/ccree/cc_buffer_mgr.c @@ -258,6 +258,13 @@ static int cc_map_sg(struct device *dev, struct scatterlist *sg, { int ret = 0; + if (!nbytes) { + *mapped_nents = 0; + *lbytes = 0; + *nents = 0; + return 0; + } + *nents = cc_get_sgl_nents(dev, sg, nbytes, lbytes); if (*nents > max_sg_nents) { *nents = 0; @@ -267,7 +274,7 @@ static int cc_map_sg(struct device *dev, struct scatterlist *sg, } ret = dma_map_sg(dev, sg, *nents, direction); - if (dma_mapping_error(dev, ret)) { + if (!ret) { *nents = 0; dev_err(dev, "dma_map_sg() sg buffer failed %d\n", ret); return -ENOMEM; @@ -349,12 +356,14 @@ void cc_unmap_cipher_request(struct device *dev, void *ctx, req_ctx->mlli_params.mlli_dma_addr); } - dma_unmap_sg(dev, src, req_ctx->in_nents, DMA_BIDIRECTIONAL); - dev_dbg(dev, "Unmapped req->src=%pK\n", sg_virt(src)); - if (src != dst) { - dma_unmap_sg(dev, dst, req_ctx->out_nents, DMA_BIDIRECTIONAL); + dma_unmap_sg(dev, src, req_ctx->in_nents, DMA_TO_DEVICE); + dma_unmap_sg(dev, dst, req_ctx->out_nents, DMA_FROM_DEVICE); dev_dbg(dev, "Unmapped req->dst=%pK\n", sg_virt(dst)); + dev_dbg(dev, "Unmapped req->src=%pK\n", sg_virt(src)); + } else { + dma_unmap_sg(dev, src, req_ctx->in_nents, DMA_BIDIRECTIONAL); + dev_dbg(dev, "Unmapped req->src=%pK\n", sg_virt(src)); } } @@ -370,6 +379,7 @@ int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx, u32 dummy = 0; int rc = 0; u32 mapped_nents = 0; + int src_direction = (src != dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL); req_ctx->dma_buf_type = CC_DMA_BUF_DLLI; mlli_params->curr_pool = NULL; @@ -392,7 +402,7 @@ int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx, } /* Map the src SGL */ - rc = cc_map_sg(dev, src, nbytes, DMA_BIDIRECTIONAL, &req_ctx->in_nents, + rc = cc_map_sg(dev, src, nbytes, src_direction, &req_ctx->in_nents, LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, &mapped_nents); if (rc) goto cipher_exit; @@ -409,7 +419,7 @@ int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx, } } else { /* Map the dst sg */ - rc = cc_map_sg(dev, dst, nbytes, DMA_BIDIRECTIONAL, + rc = cc_map_sg(dev, dst, nbytes, DMA_FROM_DEVICE, &req_ctx->out_nents, LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, &mapped_nents); if (rc) @@ -449,6 +459,7 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req) struct aead_req_ctx *areq_ctx = aead_request_ctx(req); unsigned int hw_iv_size = areq_ctx->hw_iv_size; struct cc_drvdata *drvdata = dev_get_drvdata(dev); + int src_direction = (req->src != req->dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL); if (areq_ctx->mac_buf_dma_addr) { dma_unmap_single(dev, areq_ctx->mac_buf_dma_addr, @@ -507,13 +518,11 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req) sg_virt(req->src), areq_ctx->src.nents, areq_ctx->assoc.nents, areq_ctx->assoclen, req->cryptlen); - dma_unmap_sg(dev, req->src, areq_ctx->src.mapped_nents, - DMA_BIDIRECTIONAL); + dma_unmap_sg(dev, req->src, areq_ctx->src.mapped_nents, src_direction); if (req->src != req->dst) { dev_dbg(dev, "Unmapping dst sgl: req->dst=%pK\n", sg_virt(req->dst)); - dma_unmap_sg(dev, req->dst, areq_ctx->dst.mapped_nents, - DMA_BIDIRECTIONAL); + dma_unmap_sg(dev, req->dst, areq_ctx->dst.mapped_nents, DMA_FROM_DEVICE); } if (drvdata->coherent && areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT && @@ -836,7 +845,7 @@ static int cc_aead_chain_data(struct cc_drvdata *drvdata, else size_for_map -= authsize; - rc = cc_map_sg(dev, req->dst, size_for_map, DMA_BIDIRECTIONAL, + rc = cc_map_sg(dev, req->dst, size_for_map, DMA_FROM_DEVICE, &areq_ctx->dst.mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES, &dst_last_bytes, &dst_mapped_nents); @@ -1049,7 +1058,8 @@ int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req) size_to_map += authsize; } - rc = cc_map_sg(dev, req->src, size_to_map, DMA_BIDIRECTIONAL, + rc = cc_map_sg(dev, req->src, size_to_map, + (req->src != req->dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL), &areq_ctx->src.mapped_nents, (LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES + LLI_MAX_NUM_OF_DATA_ENTRIES), diff --git a/drivers/crypto/ccree/cc_cipher.c b/drivers/crypto/ccree/cc_cipher.c index 78833491f534..309da6334a0a 100644 --- a/drivers/crypto/ccree/cc_cipher.c +++ b/drivers/crypto/ccree/cc_cipher.c @@ -257,8 +257,8 @@ static void cc_cipher_exit(struct crypto_tfm *tfm) &ctx_p->user.key_dma_addr); /* Free key buffer in context */ - kfree_sensitive(ctx_p->user.key); dev_dbg(dev, "Free key buffer in context. key=@%p\n", ctx_p->user.key); + kfree_sensitive(ctx_p->user.key); } struct tdes_keys { diff --git a/drivers/crypto/ccree/cc_driver.c b/drivers/crypto/ccree/cc_driver.c index 790fa9058a36..cadead18b59e 100644 --- a/drivers/crypto/ccree/cc_driver.c +++ b/drivers/crypto/ccree/cc_driver.c @@ -372,17 +372,10 @@ static int init_cc_resources(struct platform_device *plat_dev) dev->dma_mask = &dev->coherent_dma_mask; dma_mask = DMA_BIT_MASK(DMA_BIT_MASK_LEN); - while (dma_mask > 0x7fffffffUL) { - if (dma_supported(dev, dma_mask)) { - rc = dma_set_coherent_mask(dev, dma_mask); - if (!rc) - break; - } - dma_mask >>= 1; - } - + rc = dma_set_coherent_mask(dev, dma_mask); if (rc) { - dev_err(dev, "Failed in dma_set_mask, mask=%llx\n", dma_mask); + dev_err(dev, "Failed in dma_set_coherent_mask, mask=%llx\n", + dma_mask); return rc; } @@ -529,24 +522,26 @@ static int init_cc_resources(struct platform_device *plat_dev) goto post_req_mgr_err; } - /* Allocate crypto algs */ - rc = cc_cipher_alloc(new_drvdata); + /* hash must be allocated first due to use of send_request_init() + * and dependency of AEAD on it + */ + rc = cc_hash_alloc(new_drvdata); if (rc) { - dev_err(dev, "cc_cipher_alloc failed\n"); + dev_err(dev, "cc_hash_alloc failed\n"); goto post_buf_mgr_err; } - /* hash must be allocated before aead since hash exports APIs */ - rc = cc_hash_alloc(new_drvdata); + /* Allocate crypto algs */ + rc = cc_cipher_alloc(new_drvdata); if (rc) { - dev_err(dev, "cc_hash_alloc failed\n"); - goto post_cipher_err; + dev_err(dev, "cc_cipher_alloc failed\n"); + goto post_hash_err; } rc = cc_aead_alloc(new_drvdata); if (rc) { dev_err(dev, "cc_aead_alloc failed\n"); - goto post_hash_err; + goto post_cipher_err; } /* If we got here and FIPS mode is enabled @@ -558,10 +553,10 @@ static int init_cc_resources(struct platform_device *plat_dev) pm_runtime_put(dev); return 0; -post_hash_err: - cc_hash_free(new_drvdata); post_cipher_err: cc_cipher_free(new_drvdata); +post_hash_err: + cc_hash_free(new_drvdata); post_buf_mgr_err: cc_buffer_mgr_fini(new_drvdata); post_req_mgr_err: @@ -593,8 +588,8 @@ static void cleanup_cc_resources(struct platform_device *plat_dev) (struct cc_drvdata *)platform_get_drvdata(plat_dev); cc_aead_free(drvdata); - cc_hash_free(drvdata); cc_cipher_free(drvdata); + cc_hash_free(drvdata); cc_buffer_mgr_fini(drvdata); cc_req_mgr_fini(drvdata); cc_fips_fini(drvdata); diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c index d5421b0c6831..6124fbbbed94 100644 --- a/drivers/crypto/ccree/cc_pm.c +++ b/drivers/crypto/ccree/cc_pm.c @@ -41,6 +41,7 @@ static int cc_pm_resume(struct device *dev) /* wait for Cryptocell reset completion */ if (!cc_wait_for_reset_completion(drvdata)) { dev_err(dev, "Cryptocell reset not completed"); + clk_disable_unprepare(drvdata->clk); return -EBUSY; } @@ -48,6 +49,7 @@ static int cc_pm_resume(struct device *dev) rc = init_cc_regs(drvdata); if (rc) { dev_err(dev, "init_cc_regs (%x)\n", rc); + clk_disable_unprepare(drvdata->clk); return rc; } /* check if tee fips error occurred during power down */ diff --git a/drivers/crypto/ccree/cc_request_mgr.c b/drivers/crypto/ccree/cc_request_mgr.c index 33fb27745d52..887162df50f9 100644 --- a/drivers/crypto/ccree/cc_request_mgr.c +++ b/drivers/crypto/ccree/cc_request_mgr.c @@ -101,7 +101,6 @@ void cc_req_mgr_fini(struct cc_drvdata *drvdata) dev_dbg(dev, "max_used_sw_slots=%d\n", req_mgr_h->max_used_sw_slots); #ifdef COMP_IN_WQ - flush_workqueue(req_mgr_h->workq); destroy_workqueue(req_mgr_h->workq); #else /* Kill tasklet */ |