diff options
Diffstat (limited to 'drivers/crypto/marvell/tdma.c')
-rw-r--r-- | drivers/crypto/marvell/tdma.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/drivers/crypto/marvell/tdma.c b/drivers/crypto/marvell/tdma.c index 9fd7a5fbaa1b..4416b88eca70 100644 --- a/drivers/crypto/marvell/tdma.c +++ b/drivers/crypto/marvell/tdma.c @@ -69,9 +69,6 @@ void mv_cesa_dma_cleanup(struct mv_cesa_req *dreq) if (type == CESA_TDMA_OP) dma_pool_free(cesa_dev->dma->op_pool, tdma->op, le32_to_cpu(tdma->src)); - else if (type == CESA_TDMA_IV) - dma_pool_free(cesa_dev->dma->iv_pool, tdma->data, - le32_to_cpu(tdma->dst)); tdma = tdma->next; dma_pool_free(cesa_dev->dma->tdma_desc_pool, old_tdma, @@ -209,29 +206,37 @@ mv_cesa_dma_add_desc(struct mv_cesa_tdma_chain *chain, gfp_t flags) return new_tdma; } -int mv_cesa_dma_add_iv_op(struct mv_cesa_tdma_chain *chain, dma_addr_t src, +int mv_cesa_dma_add_result_op(struct mv_cesa_tdma_chain *chain, dma_addr_t src, u32 size, u32 flags, gfp_t gfp_flags) { - - struct mv_cesa_tdma_desc *tdma; - u8 *iv; - dma_addr_t dma_handle; + struct mv_cesa_tdma_desc *tdma, *op_desc; tdma = mv_cesa_dma_add_desc(chain, gfp_flags); if (IS_ERR(tdma)) return PTR_ERR(tdma); - iv = dma_pool_alloc(cesa_dev->dma->iv_pool, gfp_flags, &dma_handle); - if (!iv) - return -ENOMEM; + /* We re-use an existing op_desc object to retrieve the context + * and result instead of allocating a new one. + * There is at least one object of this type in a CESA crypto + * req, just pick the first one in the chain. + */ + for (op_desc = chain->first; op_desc; op_desc = op_desc->next) { + u32 type = op_desc->flags & CESA_TDMA_TYPE_MSK; + + if (type == CESA_TDMA_OP) + break; + } + + if (!op_desc) + return -EIO; tdma->byte_cnt = cpu_to_le32(size | BIT(31)); tdma->src = src; - tdma->dst = cpu_to_le32(dma_handle); - tdma->data = iv; + tdma->dst = op_desc->src; + tdma->op = op_desc->op; flags &= (CESA_TDMA_DST_IN_SRAM | CESA_TDMA_SRC_IN_SRAM); - tdma->flags = flags | CESA_TDMA_IV; + tdma->flags = flags | CESA_TDMA_RESULT; return 0; } |