#define STARFIVE_HASH_BUFLEN SHA512_BLOCK_SIZE
#define STARFIVE_HASH_RESET 0x2
-static inline int starfive_hash_wait_busy(struct starfive_cryp_ctx *ctx)
+static inline int starfive_hash_wait_busy(struct starfive_cryp_dev *cryp)
{
- struct starfive_cryp_dev *cryp = ctx->cryp;
u32 status;
return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, status,
!(status & STARFIVE_HASH_BUSY), 10, 100000);
}
+static inline int starfive_hash_wait_hmac_done(struct starfive_cryp_dev *cryp)
+{
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, status,
+ (status & STARFIVE_HASH_HMAC_DONE), 10, 100000);
+}
+
static inline int starfive_hash_wait_key_done(struct starfive_cryp_ctx *ctx)
{
struct starfive_cryp_dev *cryp = ctx->cryp;
return 0;
}
-static void starfive_hash_start(void *param)
+static void starfive_hash_start(struct starfive_cryp_dev *cryp)
{
- struct starfive_cryp_ctx *ctx = param;
- struct starfive_cryp_request_ctx *rctx = ctx->rctx;
- struct starfive_cryp_dev *cryp = ctx->cryp;
- union starfive_alg_cr alg_cr;
union starfive_hash_csr csr;
- u32 stat;
-
- dma_unmap_sg(cryp->dev, rctx->in_sg, rctx->in_sg_len, DMA_TO_DEVICE);
-
- alg_cr.v = 0;
- alg_cr.clear = 1;
-
- writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET);
csr.v = readl(cryp->base + STARFIVE_HASH_SHACSR);
csr.firstb = 0;
csr.final = 1;
-
- stat = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);
- stat &= ~STARFIVE_IE_MASK_HASH_DONE;
- writel(stat, cryp->base + STARFIVE_IE_MASK_OFFSET);
writel(csr.v, cryp->base + STARFIVE_HASH_SHACSR);
}
-static int starfive_hash_xmit_dma(struct starfive_cryp_ctx *ctx)
+static void starfive_hash_dma_callback(void *param)
{
- struct starfive_cryp_request_ctx *rctx = ctx->rctx;
- struct starfive_cryp_dev *cryp = ctx->cryp;
- struct dma_async_tx_descriptor *in_desc;
- union starfive_alg_cr alg_cr;
- int total_len;
- int ret;
-
- if (!rctx->total) {
- starfive_hash_start(ctx);
- return 0;
- }
+ struct starfive_cryp_dev *cryp = param;
- writel(rctx->total, cryp->base + STARFIVE_DMA_IN_LEN_OFFSET);
-
- total_len = rctx->total;
- total_len = (total_len & 0x3) ? (((total_len >> 2) + 1) << 2) : total_len;
- sg_dma_len(rctx->in_sg) = total_len;
-
- alg_cr.v = 0;
- alg_cr.start = 1;
- alg_cr.hash_dma_en = 1;
-
- writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET);
-
- ret = dma_map_sg(cryp->dev, rctx->in_sg, rctx->in_sg_len, DMA_TO_DEVICE);
- if (!ret)
- return dev_err_probe(cryp->dev, -EINVAL, "dma_map_sg() error\n");
+ complete(&cryp->dma_done);
+}
- cryp->cfg_in.direction = DMA_MEM_TO_DEV;
- cryp->cfg_in.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+static void starfive_hash_dma_init(struct starfive_cryp_dev *cryp)
+{
+ cryp->cfg_in.src_addr_width = DMA_SLAVE_BUSWIDTH_16_BYTES;
cryp->cfg_in.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
cryp->cfg_in.src_maxburst = cryp->dma_maxburst;
cryp->cfg_in.dst_maxburst = cryp->dma_maxburst;
dmaengine_slave_config(cryp->tx, &cryp->cfg_in);
- in_desc = dmaengine_prep_slave_sg(cryp->tx, rctx->in_sg,
- ret, DMA_MEM_TO_DEV,
- DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
-
- if (!in_desc)
- return -EINVAL;
-
- in_desc->callback = starfive_hash_start;
- in_desc->callback_param = ctx;
-
- dmaengine_submit(in_desc);
- dma_async_issue_pending(cryp->tx);
-
- return 0;
+ init_completion(&cryp->dma_done);
}
-static int starfive_hash_xmit(struct starfive_cryp_ctx *ctx)
+static int starfive_hash_dma_xfer(struct starfive_cryp_dev *cryp,
+ struct scatterlist *sg)
{
- struct starfive_cryp_request_ctx *rctx = ctx->rctx;
- struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct dma_async_tx_descriptor *in_desc;
+ union starfive_alg_cr alg_cr;
int ret = 0;
- rctx->csr.hash.v = 0;
- rctx->csr.hash.reset = 1;
- writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR);
-
- if (starfive_hash_wait_busy(ctx))
- return dev_err_probe(cryp->dev, -ETIMEDOUT, "Error resetting engine.\n");
+ alg_cr.v = 0;
+ alg_cr.start = 1;
+ alg_cr.hash_dma_en = 1;
+ writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET);
- rctx->csr.hash.v = 0;
- rctx->csr.hash.mode = ctx->hash_mode;
- rctx->csr.hash.ie = 1;
+ writel(sg_dma_len(sg), cryp->base + STARFIVE_DMA_IN_LEN_OFFSET);
+ sg_dma_len(sg) = ALIGN(sg_dma_len(sg), sizeof(u32));
- if (ctx->is_hmac) {
- ret = starfive_hash_hmac_key(ctx);
- if (ret)
- return ret;
- } else {
- rctx->csr.hash.start = 1;
- rctx->csr.hash.firstb = 1;
- writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR);
+ in_desc = dmaengine_prep_slave_sg(cryp->tx, sg, 1, DMA_MEM_TO_DEV,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if (!in_desc) {
+ ret = -EINVAL;
+ goto end;
}
- return starfive_hash_xmit_dma(ctx);
+ reinit_completion(&cryp->dma_done);
+ in_desc->callback = starfive_hash_dma_callback;
+ in_desc->callback_param = cryp;
+
+ dmaengine_submit(in_desc);
+ dma_async_issue_pending(cryp->tx);
+
+ if (!wait_for_completion_timeout(&cryp->dma_done,
+ msecs_to_jiffies(1000)))
+ ret = -ETIMEDOUT;
+
+end:
+ alg_cr.v = 0;
+ alg_cr.clear = 1;
+ writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET);
+
+ return ret;
}
static int starfive_hash_copy_hash(struct ahash_request *req)
return 0;
}
-void starfive_hash_done_task(unsigned long param)
+static void starfive_hash_done_task(struct starfive_cryp_dev *cryp)
{
- struct starfive_cryp_dev *cryp = (struct starfive_cryp_dev *)param;
int err = cryp->err;
if (!err)
err = starfive_hash_copy_hash(cryp->req.hreq);
- /* Reset to clear hash_done in irq register*/
- writel(STARFIVE_HASH_RESET, cryp->base + STARFIVE_HASH_SHACSR);
-
crypto_finalize_hash_request(cryp->engine, cryp->req.hreq, err);
}
-static int starfive_hash_check_aligned(struct scatterlist *sg, size_t total, size_t align)
+static int starfive_hash_one_request(struct crypto_engine *engine, void *areq)
{
- int len = 0;
+ struct ahash_request *req = container_of(areq, struct ahash_request,
+ base);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct scatterlist *tsg;
+ int ret, src_nents, i;
- if (!total)
- return 0;
+ writel(STARFIVE_HASH_RESET, cryp->base + STARFIVE_HASH_SHACSR);
- if (!IS_ALIGNED(total, align))
- return -EINVAL;
+ if (starfive_hash_wait_busy(cryp))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT, "Error resetting hardware\n");
- while (sg) {
- if (!IS_ALIGNED(sg->offset, sizeof(u32)))
- return -EINVAL;
+ rctx->csr.hash.v = 0;
+ rctx->csr.hash.mode = ctx->hash_mode;
- if (!IS_ALIGNED(sg->length, align))
- return -EINVAL;
+ if (ctx->is_hmac) {
+ ret = starfive_hash_hmac_key(ctx);
+ if (ret)
+ return ret;
+ } else {
+ rctx->csr.hash.start = 1;
+ rctx->csr.hash.firstb = 1;
+ writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR);
+ }
+
+ /* No input message, get digest and end. */
+ if (!rctx->total)
+ goto hash_start;
+
+ starfive_hash_dma_init(cryp);
+
+ for_each_sg(rctx->in_sg, tsg, rctx->in_sg_len, i) {
+ src_nents = dma_map_sg(cryp->dev, tsg, 1, DMA_TO_DEVICE);
+ if (src_nents == 0)
+ return dev_err_probe(cryp->dev, -ENOMEM,
+ "dma_map_sg error\n");
- len += sg->length;
- sg = sg_next(sg);
+ ret = starfive_hash_dma_xfer(cryp, tsg);
+ dma_unmap_sg(cryp->dev, tsg, 1, DMA_TO_DEVICE);
+ if (ret)
+ return ret;
}
- if (len != total)
- return -EINVAL;
+hash_start:
+ starfive_hash_start(cryp);
- return 0;
-}
+ if (starfive_hash_wait_busy(cryp))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT, "Error generating digest\n");
-static int starfive_hash_one_request(struct crypto_engine *engine, void *areq)
-{
- struct ahash_request *req = container_of(areq, struct ahash_request,
- base);
- struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
- struct starfive_cryp_dev *cryp = ctx->cryp;
+ if (ctx->is_hmac)
+ cryp->err = starfive_hash_wait_hmac_done(cryp);
- if (!cryp)
- return -ENODEV;
+ starfive_hash_done_task(cryp);
- return starfive_hash_xmit(ctx);
+ return 0;
}
static int starfive_hash_init(struct ahash_request *req)
return crypto_ahash_finup(&rctx->ahash_fbk_req);
}
-static int starfive_hash_digest_fb(struct ahash_request *req)
-{
- struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
-
- ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
- ahash_request_set_callback(&rctx->ahash_fbk_req, req->base.flags,
- req->base.complete, req->base.data);
-
- ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src,
- req->result, req->nbytes);
-
- return crypto_ahash_digest(&rctx->ahash_fbk_req);
-}
-
static int starfive_hash_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
rctx->in_sg_len = sg_nents_for_len(rctx->in_sg, rctx->total);
ctx->rctx = rctx;
- if (starfive_hash_check_aligned(rctx->in_sg, rctx->total, rctx->blksize))
- return starfive_hash_digest_fb(req);
-
return crypto_transfer_hash_request_to_engine(cryp->engine, req);
}
static int starfive_hash_init_tfm(struct crypto_ahash *hash,
const char *alg_name,
- unsigned int mode)
+ unsigned int mode,
+ bool is_hmac)
{
struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
crypto_ahash_set_reqsize(hash, sizeof(struct starfive_cryp_request_ctx) +
crypto_ahash_reqsize(ctx->ahash_fbk));
- ctx->keylen = 0;
+ ctx->is_hmac = is_hmac;
ctx->hash_mode = mode;
return 0;
static int starfive_sha224_init_tfm(struct crypto_ahash *hash)
{
return starfive_hash_init_tfm(hash, "sha224-generic",
- STARFIVE_HASH_SHA224);
+ STARFIVE_HASH_SHA224, 0);
}
static int starfive_sha256_init_tfm(struct crypto_ahash *hash)
{
return starfive_hash_init_tfm(hash, "sha256-generic",
- STARFIVE_HASH_SHA256);
+ STARFIVE_HASH_SHA256, 0);
}
static int starfive_sha384_init_tfm(struct crypto_ahash *hash)
{
return starfive_hash_init_tfm(hash, "sha384-generic",
- STARFIVE_HASH_SHA384);
+ STARFIVE_HASH_SHA384, 0);
}
static int starfive_sha512_init_tfm(struct crypto_ahash *hash)
{
return starfive_hash_init_tfm(hash, "sha512-generic",
- STARFIVE_HASH_SHA512);
+ STARFIVE_HASH_SHA512, 0);
}
static int starfive_sm3_init_tfm(struct crypto_ahash *hash)
{
return starfive_hash_init_tfm(hash, "sm3-generic",
- STARFIVE_HASH_SM3);
+ STARFIVE_HASH_SM3, 0);
}
static int starfive_hmac_sha224_init_tfm(struct crypto_ahash *hash)
{
- struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
-
- ctx->is_hmac = true;
-
return starfive_hash_init_tfm(hash, "hmac(sha224-generic)",
- STARFIVE_HASH_SHA224);
+ STARFIVE_HASH_SHA224, 1);
}
static int starfive_hmac_sha256_init_tfm(struct crypto_ahash *hash)
{
- struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
-
- ctx->is_hmac = true;
-
return starfive_hash_init_tfm(hash, "hmac(sha256-generic)",
- STARFIVE_HASH_SHA256);
+ STARFIVE_HASH_SHA256, 1);
}
static int starfive_hmac_sha384_init_tfm(struct crypto_ahash *hash)
{
- struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
-
- ctx->is_hmac = true;
-
return starfive_hash_init_tfm(hash, "hmac(sha384-generic)",
- STARFIVE_HASH_SHA384);
+ STARFIVE_HASH_SHA384, 1);
}
static int starfive_hmac_sha512_init_tfm(struct crypto_ahash *hash)
{
- struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
-
- ctx->is_hmac = true;
-
return starfive_hash_init_tfm(hash, "hmac(sha512-generic)",
- STARFIVE_HASH_SHA512);
+ STARFIVE_HASH_SHA512, 1);
}
static int starfive_hmac_sm3_init_tfm(struct crypto_ahash *hash)
{
- struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
-
- ctx->is_hmac = true;
-
return starfive_hash_init_tfm(hash, "hmac(sm3-generic)",
- STARFIVE_HASH_SM3);
+ STARFIVE_HASH_SM3, 1);
}
static struct ahash_engine_alg algs_sha2_sm3[] = {
projects / users / hch / block.git / commitdiff