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crypto: rockchip: core: add scatterlist from dmafd support

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Signed-off-by: Lin Jinhan <troy.lin@rock-chips.com>
Change-Id: Ie9eed5a785ad027a9c4dd134be904c3064754c09
This commit is contained in:
Lin Jinhan
2021-12-22 19:15:12 +08:00
committed by Tao Huang
parent ca5dd883fe
commit c8876aae83
2 changed files with 26 additions and 5 deletions
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30
drivers/crypto/rockchip/rk_crypto_core.c
View File

@@ -96,6 +96,22 @@ static int check_scatter_align(struct scatterlist *sg_src,
return (align && (sg_src->length == sg_dst->length));
}
static bool check_from_dmafd(struct crypto_async_request *async_req)
{
struct rk_alg_ctx *alg_ctx = rk_alg_ctx_cast(async_req);
if (alg_ctx->src_nents == 1 &&
sg_virt(alg_ctx->req_src) &&
sg_dma_address(alg_ctx->req_src) &&
alg_ctx->dst_nents == 1 &&
sg_virt(alg_ctx->req_dst) &&
sg_dma_address(alg_ctx->req_dst) &&
sg_dma_len(alg_ctx->req_src) == sg_dma_len(alg_ctx->req_dst))
return true;
return false;
}
static bool check_scatterlist_align(struct crypto_async_request *async_req,
int align_mask)
{
@@ -133,9 +149,11 @@ static int rk_load_data(struct rk_crypto_dev *rk_dev,
struct device *dev = rk_dev->dev;
struct rk_alg_ctx *alg_ctx = rk_alg_ctx_cast(rk_dev->async_req);
if (alg_ctx->left_bytes == alg_ctx->total)
if (alg_ctx->left_bytes == alg_ctx->total) {
alg_ctx->is_dma = check_from_dmafd(rk_dev->async_req);
alg_ctx->aligned = check_scatterlist_align(rk_dev->async_req,
alg_ctx->align_size);
alg_ctx->align_size) | alg_ctx->is_dma;
}
CRYPTO_TRACE("aligned = %d, total = %u, left_bytes = %u\n",
alg_ctx->aligned, alg_ctx->total, alg_ctx->left_bytes);
@@ -154,7 +172,7 @@ static int rk_load_data(struct rk_crypto_dev *rk_dev,
alg_ctx->addr_in = sg_dma_address(sg_src);
if (sg_dst) {
if (!dma_map_sg(dev, sg_dst, 1, DMA_FROM_DEVICE)) {
if (!alg_ctx->is_dma && !dma_map_sg(dev, sg_dst, 1, DMA_FROM_DEVICE)) {
dev_err(dev,
"[%s:%d] dma_map_sg(dst) error\n",
__func__, __LINE__);
@@ -221,11 +239,13 @@ static int rk_unload_data(struct rk_crypto_dev *rk_dev)
return 0;
sg_in = alg_ctx->aligned ? alg_ctx->sg_src : &alg_ctx->sg_tmp;
dma_unmap_sg(rk_dev->dev, sg_in, 1, DMA_TO_DEVICE);
if (!alg_ctx->is_dma)
dma_unmap_sg(rk_dev->dev, sg_in, 1, DMA_TO_DEVICE);
if (alg_ctx->sg_dst) {
sg_out = alg_ctx->aligned ? alg_ctx->sg_dst : &alg_ctx->sg_tmp;
dma_unmap_sg(rk_dev->dev, sg_out, 1, DMA_FROM_DEVICE);
if (!alg_ctx->is_dma)
dma_unmap_sg(rk_dev->dev, sg_out, 1, DMA_FROM_DEVICE);
}
if (!alg_ctx->aligned && alg_ctx->req_dst) {

1
drivers/crypto/rockchip/rk_crypto_core.h
View File

@@ -109,6 +109,7 @@ struct rk_alg_ctx {
dma_addr_t addr_out;
bool aligned;
bool is_dma;
int align_size;
int chunk_size;
};