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path: root/drivers/crypto/ccree/cc_hash.c
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-rw-r--r--drivers/crypto/ccree/cc_hash.c2315
1 files changed, 2315 insertions, 0 deletions
diff --git a/drivers/crypto/ccree/cc_hash.c b/drivers/crypto/ccree/cc_hash.c
new file mode 100644
index 0000000000..f418162932
--- /dev/null
+++ b/drivers/crypto/ccree/cc_hash.c
@@ -0,0 +1,2315 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <crypto/algapi.h>
+#include <crypto/hash.h>
+#include <crypto/md5.h>
+#include <crypto/sm3.h>
+#include <crypto/internal/hash.h>
+
+#include "cc_driver.h"
+#include "cc_request_mgr.h"
+#include "cc_buffer_mgr.h"
+#include "cc_hash.h"
+#include "cc_sram_mgr.h"
+
+#define CC_MAX_HASH_SEQ_LEN 12
+#define CC_MAX_OPAD_KEYS_SIZE CC_MAX_HASH_BLCK_SIZE
+#define CC_SM3_HASH_LEN_SIZE 8
+
+struct cc_hash_handle {
+ u32 digest_len_sram_addr; /* const value in SRAM*/
+ u32 larval_digest_sram_addr; /* const value in SRAM */
+ struct list_head hash_list;
+};
+
+static const u32 cc_digest_len_init[] = {
+ 0x00000040, 0x00000000, 0x00000000, 0x00000000 };
+static const u32 cc_md5_init[] = {
+ SHA1_H3, SHA1_H2, SHA1_H1, SHA1_H0 };
+static const u32 cc_sha1_init[] = {
+ SHA1_H4, SHA1_H3, SHA1_H2, SHA1_H1, SHA1_H0 };
+static const u32 cc_sha224_init[] = {
+ SHA224_H7, SHA224_H6, SHA224_H5, SHA224_H4,
+ SHA224_H3, SHA224_H2, SHA224_H1, SHA224_H0 };
+static const u32 cc_sha256_init[] = {
+ SHA256_H7, SHA256_H6, SHA256_H5, SHA256_H4,
+ SHA256_H3, SHA256_H2, SHA256_H1, SHA256_H0 };
+static const u32 cc_digest_len_sha512_init[] = {
+ 0x00000080, 0x00000000, 0x00000000, 0x00000000 };
+
+/*
+ * Due to the way the HW works, every double word in the SHA384 and SHA512
+ * larval hashes must be stored in hi/lo order
+ */
+#define hilo(x) upper_32_bits(x), lower_32_bits(x)
+static const u32 cc_sha384_init[] = {
+ hilo(SHA384_H7), hilo(SHA384_H6), hilo(SHA384_H5), hilo(SHA384_H4),
+ hilo(SHA384_H3), hilo(SHA384_H2), hilo(SHA384_H1), hilo(SHA384_H0) };
+static const u32 cc_sha512_init[] = {
+ hilo(SHA512_H7), hilo(SHA512_H6), hilo(SHA512_H5), hilo(SHA512_H4),
+ hilo(SHA512_H3), hilo(SHA512_H2), hilo(SHA512_H1), hilo(SHA512_H0) };
+
+static const u32 cc_sm3_init[] = {
+ SM3_IVH, SM3_IVG, SM3_IVF, SM3_IVE,
+ SM3_IVD, SM3_IVC, SM3_IVB, SM3_IVA };
+
+static void cc_setup_xcbc(struct ahash_request *areq, struct cc_hw_desc desc[],
+ unsigned int *seq_size);
+
+static void cc_setup_cmac(struct ahash_request *areq, struct cc_hw_desc desc[],
+ unsigned int *seq_size);
+
+static const void *cc_larval_digest(struct device *dev, u32 mode);
+
+struct cc_hash_alg {
+ struct list_head entry;
+ int hash_mode;
+ int hw_mode;
+ int inter_digestsize;
+ struct cc_drvdata *drvdata;
+ struct ahash_alg ahash_alg;
+};
+
+struct hash_key_req_ctx {
+ u32 keylen;
+ dma_addr_t key_dma_addr;
+ u8 *key;
+};
+
+/* hash per-session context */
+struct cc_hash_ctx {
+ struct cc_drvdata *drvdata;
+ /* holds the origin digest; the digest after "setkey" if HMAC,*
+ * the initial digest if HASH.
+ */
+ u8 digest_buff[CC_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned;
+ u8 opad_tmp_keys_buff[CC_MAX_OPAD_KEYS_SIZE] ____cacheline_aligned;
+
+ dma_addr_t opad_tmp_keys_dma_addr ____cacheline_aligned;
+ dma_addr_t digest_buff_dma_addr;
+ /* use for hmac with key large then mode block size */
+ struct hash_key_req_ctx key_params;
+ int hash_mode;
+ int hw_mode;
+ int inter_digestsize;
+ unsigned int hash_len;
+ struct completion setkey_comp;
+ bool is_hmac;
+};
+
+static void cc_set_desc(struct ahash_req_ctx *areq_ctx, struct cc_hash_ctx *ctx,
+ unsigned int flow_mode, struct cc_hw_desc desc[],
+ bool is_not_last_data, unsigned int *seq_size);
+
+static void cc_set_endianity(u32 mode, struct cc_hw_desc *desc)
+{
+ if (mode == DRV_HASH_MD5 || mode == DRV_HASH_SHA384 ||
+ mode == DRV_HASH_SHA512) {
+ set_bytes_swap(desc, 1);
+ } else {
+ set_cipher_config0(desc, HASH_DIGEST_RESULT_LITTLE_ENDIAN);
+ }
+}
+
+static int cc_map_result(struct device *dev, struct ahash_req_ctx *state,
+ unsigned int digestsize)
+{
+ state->digest_result_dma_addr =
+ dma_map_single(dev, state->digest_result_buff,
+ digestsize, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, state->digest_result_dma_addr)) {
+ dev_err(dev, "Mapping digest result buffer %u B for DMA failed\n",
+ digestsize);
+ return -ENOMEM;
+ }
+ dev_dbg(dev, "Mapped digest result buffer %u B at va=%pK to dma=%pad\n",
+ digestsize, state->digest_result_buff,
+ &state->digest_result_dma_addr);
+
+ return 0;
+}
+
+static void cc_init_req(struct device *dev, struct ahash_req_ctx *state,
+ struct cc_hash_ctx *ctx)
+{
+ bool is_hmac = ctx->is_hmac;
+
+ memset(state, 0, sizeof(*state));
+
+ if (is_hmac) {
+ if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC &&
+ ctx->hw_mode != DRV_CIPHER_CMAC) {
+ dma_sync_single_for_cpu(dev, ctx->digest_buff_dma_addr,
+ ctx->inter_digestsize,
+ DMA_BIDIRECTIONAL);
+
+ memcpy(state->digest_buff, ctx->digest_buff,
+ ctx->inter_digestsize);
+ if (ctx->hash_mode == DRV_HASH_SHA512 ||
+ ctx->hash_mode == DRV_HASH_SHA384)
+ memcpy(state->digest_bytes_len,
+ cc_digest_len_sha512_init,
+ ctx->hash_len);
+ else
+ memcpy(state->digest_bytes_len,
+ cc_digest_len_init,
+ ctx->hash_len);
+ }
+
+ if (ctx->hash_mode != DRV_HASH_NULL) {
+ dma_sync_single_for_cpu(dev,
+ ctx->opad_tmp_keys_dma_addr,
+ ctx->inter_digestsize,
+ DMA_BIDIRECTIONAL);
+ memcpy(state->opad_digest_buff,
+ ctx->opad_tmp_keys_buff, ctx->inter_digestsize);
+ }
+ } else { /*hash*/
+ /* Copy the initial digests if hash flow. */
+ const void *larval = cc_larval_digest(dev, ctx->hash_mode);
+
+ memcpy(state->digest_buff, larval, ctx->inter_digestsize);
+ }
+}
+
+static int cc_map_req(struct device *dev, struct ahash_req_ctx *state,
+ struct cc_hash_ctx *ctx)
+{
+ bool is_hmac = ctx->is_hmac;
+
+ state->digest_buff_dma_addr =
+ dma_map_single(dev, state->digest_buff,
+ ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, state->digest_buff_dma_addr)) {
+ dev_err(dev, "Mapping digest len %d B at va=%pK for DMA failed\n",
+ ctx->inter_digestsize, state->digest_buff);
+ return -EINVAL;
+ }
+ dev_dbg(dev, "Mapped digest %d B at va=%pK to dma=%pad\n",
+ ctx->inter_digestsize, state->digest_buff,
+ &state->digest_buff_dma_addr);
+
+ if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) {
+ state->digest_bytes_len_dma_addr =
+ dma_map_single(dev, state->digest_bytes_len,
+ HASH_MAX_LEN_SIZE, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, state->digest_bytes_len_dma_addr)) {
+ dev_err(dev, "Mapping digest len %u B at va=%pK for DMA failed\n",
+ HASH_MAX_LEN_SIZE, state->digest_bytes_len);
+ goto unmap_digest_buf;
+ }
+ dev_dbg(dev, "Mapped digest len %u B at va=%pK to dma=%pad\n",
+ HASH_MAX_LEN_SIZE, state->digest_bytes_len,
+ &state->digest_bytes_len_dma_addr);
+ }
+
+ if (is_hmac && ctx->hash_mode != DRV_HASH_NULL) {
+ state->opad_digest_dma_addr =
+ dma_map_single(dev, state->opad_digest_buff,
+ ctx->inter_digestsize,
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, state->opad_digest_dma_addr)) {
+ dev_err(dev, "Mapping opad digest %d B at va=%pK for DMA failed\n",
+ ctx->inter_digestsize,
+ state->opad_digest_buff);
+ goto unmap_digest_len;
+ }
+ dev_dbg(dev, "Mapped opad digest %d B at va=%pK to dma=%pad\n",
+ ctx->inter_digestsize, state->opad_digest_buff,
+ &state->opad_digest_dma_addr);
+ }
+
+ return 0;
+
+unmap_digest_len:
+ if (state->digest_bytes_len_dma_addr) {
+ dma_unmap_single(dev, state->digest_bytes_len_dma_addr,
+ HASH_MAX_LEN_SIZE, DMA_BIDIRECTIONAL);
+ state->digest_bytes_len_dma_addr = 0;
+ }
+unmap_digest_buf:
+ if (state->digest_buff_dma_addr) {
+ dma_unmap_single(dev, state->digest_buff_dma_addr,
+ ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ state->digest_buff_dma_addr = 0;
+ }
+
+ return -EINVAL;
+}
+
+static void cc_unmap_req(struct device *dev, struct ahash_req_ctx *state,
+ struct cc_hash_ctx *ctx)
+{
+ if (state->digest_buff_dma_addr) {
+ dma_unmap_single(dev, state->digest_buff_dma_addr,
+ ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ dev_dbg(dev, "Unmapped digest-buffer: digest_buff_dma_addr=%pad\n",
+ &state->digest_buff_dma_addr);
+ state->digest_buff_dma_addr = 0;
+ }
+ if (state->digest_bytes_len_dma_addr) {
+ dma_unmap_single(dev, state->digest_bytes_len_dma_addr,
+ HASH_MAX_LEN_SIZE, DMA_BIDIRECTIONAL);
+ dev_dbg(dev, "Unmapped digest-bytes-len buffer: digest_bytes_len_dma_addr=%pad\n",
+ &state->digest_bytes_len_dma_addr);
+ state->digest_bytes_len_dma_addr = 0;
+ }
+ if (state->opad_digest_dma_addr) {
+ dma_unmap_single(dev, state->opad_digest_dma_addr,
+ ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ dev_dbg(dev, "Unmapped opad-digest: opad_digest_dma_addr=%pad\n",
+ &state->opad_digest_dma_addr);
+ state->opad_digest_dma_addr = 0;
+ }
+}
+
+static void cc_unmap_result(struct device *dev, struct ahash_req_ctx *state,
+ unsigned int digestsize, u8 *result)
+{
+ if (state->digest_result_dma_addr) {
+ dma_unmap_single(dev, state->digest_result_dma_addr, digestsize,
+ DMA_BIDIRECTIONAL);
+ dev_dbg(dev, "unmpa digest result buffer va (%pK) pa (%pad) len %u\n",
+ state->digest_result_buff,
+ &state->digest_result_dma_addr, digestsize);
+ memcpy(result, state->digest_result_buff, digestsize);
+ }
+ state->digest_result_dma_addr = 0;
+}
+
+static void cc_update_complete(struct device *dev, void *cc_req, int err)
+{
+ struct ahash_request *req = (struct ahash_request *)cc_req;
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+
+ dev_dbg(dev, "req=%pK\n", req);
+
+ if (err != -EINPROGRESS) {
+ /* Not a BACKLOG notification */
+ cc_unmap_hash_request(dev, state, req->src, false);
+ cc_unmap_req(dev, state, ctx);
+ }
+
+ ahash_request_complete(req, err);
+}
+
+static void cc_digest_complete(struct device *dev, void *cc_req, int err)
+{
+ struct ahash_request *req = (struct ahash_request *)cc_req;
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+
+ dev_dbg(dev, "req=%pK\n", req);
+
+ if (err != -EINPROGRESS) {
+ /* Not a BACKLOG notification */
+ cc_unmap_hash_request(dev, state, req->src, false);
+ cc_unmap_result(dev, state, digestsize, req->result);
+ cc_unmap_req(dev, state, ctx);
+ }
+
+ ahash_request_complete(req, err);
+}
+
+static void cc_hash_complete(struct device *dev, void *cc_req, int err)
+{
+ struct ahash_request *req = (struct ahash_request *)cc_req;
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+
+ dev_dbg(dev, "req=%pK\n", req);
+
+ if (err != -EINPROGRESS) {
+ /* Not a BACKLOG notification */
+ cc_unmap_hash_request(dev, state, req->src, false);
+ cc_unmap_result(dev, state, digestsize, req->result);
+ cc_unmap_req(dev, state, ctx);
+ }
+
+ ahash_request_complete(req, err);
+}
+
+static int cc_fin_result(struct cc_hw_desc *desc, struct ahash_request *req,
+ int idx)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+
+ /* Get final MAC result */
+ hw_desc_init(&desc[idx]);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+ set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
+ NS_BIT, 1);
+ set_queue_last_ind(ctx->drvdata, &desc[idx]);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
+ cc_set_endianity(ctx->hash_mode, &desc[idx]);
+ idx++;
+
+ return idx;
+}
+
+static int cc_fin_hmac(struct cc_hw_desc *desc, struct ahash_request *req,
+ int idx)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+
+ /* store the hash digest result in the context */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_dout_dlli(&desc[idx], state->digest_buff_dma_addr, digestsize,
+ NS_BIT, 0);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ cc_set_endianity(ctx->hash_mode, &desc[idx]);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* Loading hash opad xor key state */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr,
+ ctx->inter_digestsize, NS_BIT);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_din_sram(&desc[idx],
+ cc_digest_len_addr(ctx->drvdata, ctx->hash_mode),
+ ctx->hash_len);
+ set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ /* Memory Barrier: wait for IPAD/OPAD axi write to complete */
+ hw_desc_init(&desc[idx]);
+ set_din_no_dma(&desc[idx], 0, 0xfffff0);
+ set_dout_no_dma(&desc[idx], 0, 0, 1);
+ idx++;
+
+ /* Perform HASH update */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
+ digestsize, NS_BIT);
+ set_flow_mode(&desc[idx], DIN_HASH);
+ idx++;
+
+ return idx;
+}
+
+static int cc_hash_digest(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ struct scatterlist *src = req->src;
+ unsigned int nbytes = req->nbytes;
+ u8 *result = req->result;
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ bool is_hmac = ctx->is_hmac;
+ struct cc_crypto_req cc_req = {};
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ u32 larval_digest_addr;
+ int idx = 0;
+ int rc = 0;
+ gfp_t flags = cc_gfp_flags(&req->base);
+
+ dev_dbg(dev, "===== %s-digest (%d) ====\n", is_hmac ? "hmac" : "hash",
+ nbytes);
+
+ cc_init_req(dev, state, ctx);
+
+ if (cc_map_req(dev, state, ctx)) {
+ dev_err(dev, "map_ahash_source() failed\n");
+ return -ENOMEM;
+ }
+
+ if (cc_map_result(dev, state, digestsize)) {
+ dev_err(dev, "map_ahash_digest() failed\n");
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1,
+ flags)) {
+ dev_err(dev, "map_ahash_request_final() failed\n");
+ cc_unmap_result(dev, state, digestsize, result);
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ /* Setup request structure */
+ cc_req.user_cb = cc_digest_complete;
+ cc_req.user_arg = req;
+
+ /* If HMAC then load hash IPAD xor key, if HASH then load initial
+ * digest
+ */
+ hw_desc_init(&desc[idx]);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+ if (is_hmac) {
+ set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
+ ctx->inter_digestsize, NS_BIT);
+ } else {
+ larval_digest_addr = cc_larval_digest_addr(ctx->drvdata,
+ ctx->hash_mode);
+ set_din_sram(&desc[idx], larval_digest_addr,
+ ctx->inter_digestsize);
+ }
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length */
+ hw_desc_init(&desc[idx]);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+
+ if (is_hmac) {
+ set_din_type(&desc[idx], DMA_DLLI,
+ state->digest_bytes_len_dma_addr,
+ ctx->hash_len, NS_BIT);
+ } else {
+ set_din_const(&desc[idx], 0, ctx->hash_len);
+ if (nbytes)
+ set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
+ else
+ set_cipher_do(&desc[idx], DO_PAD);
+ }
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx);
+
+ if (is_hmac) {
+ /* HW last hash block padding (aka. "DO_PAD") */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
+ ctx->hash_len, NS_BIT, 0);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE1);
+ set_cipher_do(&desc[idx], DO_PAD);
+ idx++;
+
+ idx = cc_fin_hmac(desc, req, idx);
+ }
+
+ idx = cc_fin_result(desc, req, idx);
+
+ rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
+ if (rc != -EINPROGRESS && rc != -EBUSY) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, src, true);
+ cc_unmap_result(dev, state, digestsize, result);
+ cc_unmap_req(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int cc_restore_hash(struct cc_hw_desc *desc, struct cc_hash_ctx *ctx,
+ struct ahash_req_ctx *state, unsigned int idx)
+{
+ /* Restore hash digest */
+ hw_desc_init(&desc[idx]);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+ set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
+ ctx->inter_digestsize, NS_BIT);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Restore hash current length */
+ hw_desc_init(&desc[idx]);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+ set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
+ set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr,
+ ctx->hash_len, NS_BIT);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx);
+
+ return idx;
+}
+
+static int cc_hash_update(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base);
+ struct scatterlist *src = req->src;
+ unsigned int nbytes = req->nbytes;
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ struct cc_crypto_req cc_req = {};
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ u32 idx = 0;
+ int rc;
+ gfp_t flags = cc_gfp_flags(&req->base);
+
+ dev_dbg(dev, "===== %s-update (%d) ====\n", ctx->is_hmac ?
+ "hmac" : "hash", nbytes);
+
+ if (nbytes == 0) {
+ /* no real updates required */
+ return 0;
+ }
+
+ rc = cc_map_hash_request_update(ctx->drvdata, state, src, nbytes,
+ block_size, flags);
+ if (rc) {
+ if (rc == 1) {
+ dev_dbg(dev, " data size not require HW update %x\n",
+ nbytes);
+ /* No hardware updates are required */
+ return 0;
+ }
+ dev_err(dev, "map_ahash_request_update() failed\n");
+ return -ENOMEM;
+ }
+
+ if (cc_map_req(dev, state, ctx)) {
+ dev_err(dev, "map_ahash_source() failed\n");
+ cc_unmap_hash_request(dev, state, src, true);
+ return -EINVAL;
+ }
+
+ /* Setup request structure */
+ cc_req.user_cb = cc_update_complete;
+ cc_req.user_arg = req;
+
+ idx = cc_restore_hash(desc, ctx, state, idx);
+
+ /* store the hash digest result in context */
+ hw_desc_init(&desc[idx]);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+ set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
+ ctx->inter_digestsize, NS_BIT, 0);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* store current hash length in context */
+ hw_desc_init(&desc[idx]);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+ set_dout_dlli(&desc[idx], state->digest_bytes_len_dma_addr,
+ ctx->hash_len, NS_BIT, 1);
+ set_queue_last_ind(ctx->drvdata, &desc[idx]);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE1);
+ idx++;
+
+ rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
+ if (rc != -EINPROGRESS && rc != -EBUSY) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, src, true);
+ cc_unmap_req(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int cc_do_finup(struct ahash_request *req, bool update)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ struct scatterlist *src = req->src;
+ unsigned int nbytes = req->nbytes;
+ u8 *result = req->result;
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ bool is_hmac = ctx->is_hmac;
+ struct cc_crypto_req cc_req = {};
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ unsigned int idx = 0;
+ int rc;
+ gfp_t flags = cc_gfp_flags(&req->base);
+
+ dev_dbg(dev, "===== %s-%s (%d) ====\n", is_hmac ? "hmac" : "hash",
+ update ? "finup" : "final", nbytes);
+
+ if (cc_map_req(dev, state, ctx)) {
+ dev_err(dev, "map_ahash_source() failed\n");
+ return -EINVAL;
+ }
+
+ if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, update,
+ flags)) {
+ dev_err(dev, "map_ahash_request_final() failed\n");
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+ if (cc_map_result(dev, state, digestsize)) {
+ dev_err(dev, "map_ahash_digest() failed\n");
+ cc_unmap_hash_request(dev, state, src, true);
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ /* Setup request structure */
+ cc_req.user_cb = cc_hash_complete;
+ cc_req.user_arg = req;
+
+ idx = cc_restore_hash(desc, ctx, state, idx);
+
+ /* Pad the hash */
+ hw_desc_init(&desc[idx]);
+ set_cipher_do(&desc[idx], DO_PAD);
+ set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
+ set_dout_dlli(&desc[idx], state->digest_bytes_len_dma_addr,
+ ctx->hash_len, NS_BIT, 0);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE1);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ idx++;
+
+ if (is_hmac)
+ idx = cc_fin_hmac(desc, req, idx);
+
+ idx = cc_fin_result(desc, req, idx);
+
+ rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
+ if (rc != -EINPROGRESS && rc != -EBUSY) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, src, true);
+ cc_unmap_result(dev, state, digestsize, result);
+ cc_unmap_req(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int cc_hash_finup(struct ahash_request *req)
+{
+ return cc_do_finup(req, true);
+}
+
+
+static int cc_hash_final(struct ahash_request *req)
+{
+ return cc_do_finup(req, false);
+}
+
+static int cc_hash_init(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+ dev_dbg(dev, "===== init (%d) ====\n", req->nbytes);
+
+ cc_init_req(dev, state, ctx);
+
+ return 0;
+}
+
+static int cc_hash_setkey(struct crypto_ahash *ahash, const u8 *key,
+ unsigned int keylen)
+{
+ unsigned int hmac_pad_const[2] = { HMAC_IPAD_CONST, HMAC_OPAD_CONST };
+ struct cc_crypto_req cc_req = {};
+ struct cc_hash_ctx *ctx = NULL;
+ int blocksize = 0;
+ int digestsize = 0;
+ int i, idx = 0, rc = 0;
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ u32 larval_addr;
+ struct device *dev;
+
+ ctx = crypto_ahash_ctx_dma(ahash);
+ dev = drvdata_to_dev(ctx->drvdata);
+ dev_dbg(dev, "start keylen: %d", keylen);
+
+ blocksize = crypto_tfm_alg_blocksize(&ahash->base);
+ digestsize = crypto_ahash_digestsize(ahash);
+
+ larval_addr = cc_larval_digest_addr(ctx->drvdata, ctx->hash_mode);
+
+ /* The keylen value distinguishes HASH in case keylen is ZERO bytes,
+ * any NON-ZERO value utilizes HMAC flow
+ */
+ ctx->key_params.keylen = keylen;
+ ctx->key_params.key_dma_addr = 0;
+ ctx->is_hmac = true;
+ ctx->key_params.key = NULL;
+
+ if (keylen) {
+ ctx->key_params.key = kmemdup(key, keylen, GFP_KERNEL);
+ if (!ctx->key_params.key)
+ return -ENOMEM;
+
+ ctx->key_params.key_dma_addr =
+ dma_map_single(dev, ctx->key_params.key, keylen,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) {
+ dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
+ ctx->key_params.key, keylen);
+ kfree_sensitive(ctx->key_params.key);
+ return -ENOMEM;
+ }
+ dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n",
+ &ctx->key_params.key_dma_addr, ctx->key_params.keylen);
+
+ if (keylen > blocksize) {
+ /* Load hash initial state */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_din_sram(&desc[idx], larval_addr,
+ ctx->inter_digestsize);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length*/
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_din_const(&desc[idx], 0, ctx->hash_len);
+ set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI,
+ ctx->key_params.key_dma_addr, keylen,
+ NS_BIT);
+ set_flow_mode(&desc[idx], DIN_HASH);
+ idx++;
+
+ /* Get hashed key */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_dout_dlli(&desc[idx], ctx->opad_tmp_keys_dma_addr,
+ digestsize, NS_BIT, 0);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
+ cc_set_endianity(ctx->hash_mode, &desc[idx]);
+ idx++;
+
+ hw_desc_init(&desc[idx]);
+ set_din_const(&desc[idx], 0, (blocksize - digestsize));
+ set_flow_mode(&desc[idx], BYPASS);
+ set_dout_dlli(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr +
+ digestsize),
+ (blocksize - digestsize), NS_BIT, 0);
+ idx++;
+ } else {
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI,
+ ctx->key_params.key_dma_addr, keylen,
+ NS_BIT);
+ set_flow_mode(&desc[idx], BYPASS);
+ set_dout_dlli(&desc[idx], ctx->opad_tmp_keys_dma_addr,
+ keylen, NS_BIT, 0);
+ idx++;
+
+ if ((blocksize - keylen)) {
+ hw_desc_init(&desc[idx]);
+ set_din_const(&desc[idx], 0,
+ (blocksize - keylen));
+ set_flow_mode(&desc[idx], BYPASS);
+ set_dout_dlli(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr +
+ keylen), (blocksize - keylen),
+ NS_BIT, 0);
+ idx++;
+ }
+ }
+ } else {
+ hw_desc_init(&desc[idx]);
+ set_din_const(&desc[idx], 0, blocksize);
+ set_flow_mode(&desc[idx], BYPASS);
+ set_dout_dlli(&desc[idx], (ctx->opad_tmp_keys_dma_addr),
+ blocksize, NS_BIT, 0);
+ idx++;
+ }
+
+ rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, idx);
+ if (rc) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ goto out;
+ }
+
+ /* calc derived HMAC key */
+ for (idx = 0, i = 0; i < 2; i++) {
+ /* Load hash initial state */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_din_sram(&desc[idx], larval_addr, ctx->inter_digestsize);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length*/
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_din_const(&desc[idx], 0, ctx->hash_len);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ /* Prepare ipad key */
+ hw_desc_init(&desc[idx]);
+ set_xor_val(&desc[idx], hmac_pad_const[i]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_flow_mode(&desc[idx], S_DIN_to_HASH);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE1);
+ idx++;
+
+ /* Perform HASH update */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, ctx->opad_tmp_keys_dma_addr,
+ blocksize, NS_BIT);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_xor_active(&desc[idx]);
+ set_flow_mode(&desc[idx], DIN_HASH);
+ idx++;
+
+ /* Get the IPAD/OPAD xor key (Note, IPAD is the initial digest
+ * of the first HASH "update" state)
+ */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ if (i > 0) /* Not first iteration */
+ set_dout_dlli(&desc[idx], ctx->opad_tmp_keys_dma_addr,
+ ctx->inter_digestsize, NS_BIT, 0);
+ else /* First iteration */
+ set_dout_dlli(&desc[idx], ctx->digest_buff_dma_addr,
+ ctx->inter_digestsize, NS_BIT, 0);
+ set_flow_mode(&desc[idx], S_HASH_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+ }
+
+ rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, idx);
+
+out:
+ if (ctx->key_params.key_dma_addr) {
+ dma_unmap_single(dev, ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen, DMA_TO_DEVICE);
+ dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
+ &ctx->key_params.key_dma_addr, ctx->key_params.keylen);
+ }
+
+ kfree_sensitive(ctx->key_params.key);
+
+ return rc;
+}
+
+static int cc_xcbc_setkey(struct crypto_ahash *ahash,
+ const u8 *key, unsigned int keylen)
+{
+ struct cc_crypto_req cc_req = {};
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ int rc = 0;
+ unsigned int idx = 0;
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+
+ dev_dbg(dev, "===== setkey (%d) ====\n", keylen);
+
+ switch (keylen) {
+ case AES_KEYSIZE_128:
+ case AES_KEYSIZE_192:
+ case AES_KEYSIZE_256:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ctx->key_params.keylen = keylen;
+
+ ctx->key_params.key = kmemdup(key, keylen, GFP_KERNEL);
+ if (!ctx->key_params.key)
+ return -ENOMEM;
+
+ ctx->key_params.key_dma_addr =
+ dma_map_single(dev, ctx->key_params.key, keylen, DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) {
+ dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
+ key, keylen);
+ kfree_sensitive(ctx->key_params.key);
+ return -ENOMEM;
+ }
+ dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n",
+ &ctx->key_params.key_dma_addr, ctx->key_params.keylen);
+
+ ctx->is_hmac = true;
+ /* 1. Load the AES key */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, ctx->key_params.key_dma_addr,
+ keylen, NS_BIT);
+ set_cipher_mode(&desc[idx], DRV_CIPHER_ECB);
+ set_cipher_config0(&desc[idx], DRV_CRYPTO_DIRECTION_ENCRYPT);
+ set_key_size_aes(&desc[idx], keylen);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ hw_desc_init(&desc[idx]);
+ set_din_const(&desc[idx], 0x01010101, CC_AES_128_BIT_KEY_SIZE);
+ set_flow_mode(&desc[idx], DIN_AES_DOUT);
+ set_dout_dlli(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K1_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0);
+ idx++;
+
+ hw_desc_init(&desc[idx]);
+ set_din_const(&desc[idx], 0x02020202, CC_AES_128_BIT_KEY_SIZE);
+ set_flow_mode(&desc[idx], DIN_AES_DOUT);
+ set_dout_dlli(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K2_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0);
+ idx++;
+
+ hw_desc_init(&desc[idx]);
+ set_din_const(&desc[idx], 0x03030303, CC_AES_128_BIT_KEY_SIZE);
+ set_flow_mode(&desc[idx], DIN_AES_DOUT);
+ set_dout_dlli(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K3_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0);
+ idx++;
+
+ rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, idx);
+
+ dma_unmap_single(dev, ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen, DMA_TO_DEVICE);
+ dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
+ &ctx->key_params.key_dma_addr, ctx->key_params.keylen);
+
+ kfree_sensitive(ctx->key_params.key);
+
+ return rc;
+}
+
+static int cc_cmac_setkey(struct crypto_ahash *ahash,
+ const u8 *key, unsigned int keylen)
+{
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+ dev_dbg(dev, "===== setkey (%d) ====\n", keylen);
+
+ ctx->is_hmac = true;
+
+ switch (keylen) {
+ case AES_KEYSIZE_128:
+ case AES_KEYSIZE_192:
+ case AES_KEYSIZE_256:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ctx->key_params.keylen = keylen;
+
+ /* STAT_PHASE_1: Copy key to ctx */
+
+ dma_sync_single_for_cpu(dev, ctx->opad_tmp_keys_dma_addr,
+ keylen, DMA_TO_DEVICE);
+
+ memcpy(ctx->opad_tmp_keys_buff, key, keylen);
+ if (keylen == 24) {
+ memset(ctx->opad_tmp_keys_buff + 24, 0,
+ CC_AES_KEY_SIZE_MAX - 24);
+ }
+
+ dma_sync_single_for_device(dev, ctx->opad_tmp_keys_dma_addr,
+ keylen, DMA_TO_DEVICE);
+
+ ctx->key_params.keylen = keylen;
+
+ return 0;
+}
+
+static void cc_free_ctx(struct cc_hash_ctx *ctx)
+{
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+ if (ctx->digest_buff_dma_addr) {
+ dma_unmap_single(dev, ctx->digest_buff_dma_addr,
+ sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL);
+ dev_dbg(dev, "Unmapped digest-buffer: digest_buff_dma_addr=%pad\n",
+ &ctx->digest_buff_dma_addr);
+ ctx->digest_buff_dma_addr = 0;
+ }
+ if (ctx->opad_tmp_keys_dma_addr) {
+ dma_unmap_single(dev, ctx->opad_tmp_keys_dma_addr,
+ sizeof(ctx->opad_tmp_keys_buff),
+ DMA_BIDIRECTIONAL);
+ dev_dbg(dev, "Unmapped opad-digest: opad_tmp_keys_dma_addr=%pad\n",
+ &ctx->opad_tmp_keys_dma_addr);
+ ctx->opad_tmp_keys_dma_addr = 0;
+ }
+
+ ctx->key_params.keylen = 0;
+}
+
+static int cc_alloc_ctx(struct cc_hash_ctx *ctx)
+{
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+ ctx->key_params.keylen = 0;
+
+ ctx->digest_buff_dma_addr =
+ dma_map_single(dev, ctx->digest_buff, sizeof(ctx->digest_buff),
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, ctx->digest_buff_dma_addr)) {
+ dev_err(dev, "Mapping digest len %zu B at va=%pK for DMA failed\n",
+ sizeof(ctx->digest_buff), ctx->digest_buff);
+ goto fail;
+ }
+ dev_dbg(dev, "Mapped digest %zu B at va=%pK to dma=%pad\n",
+ sizeof(ctx->digest_buff), ctx->digest_buff,
+ &ctx->digest_buff_dma_addr);
+
+ ctx->opad_tmp_keys_dma_addr =
+ dma_map_single(dev, ctx->opad_tmp_keys_buff,
+ sizeof(ctx->opad_tmp_keys_buff),
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, ctx->opad_tmp_keys_dma_addr)) {
+ dev_err(dev, "Mapping opad digest %zu B at va=%pK for DMA failed\n",
+ sizeof(ctx->opad_tmp_keys_buff),
+ ctx->opad_tmp_keys_buff);
+ goto fail;
+ }
+ dev_dbg(dev, "Mapped opad_tmp_keys %zu B at va=%pK to dma=%pad\n",
+ sizeof(ctx->opad_tmp_keys_buff), ctx->opad_tmp_keys_buff,
+ &ctx->opad_tmp_keys_dma_addr);
+
+ ctx->is_hmac = false;
+ return 0;
+
+fail:
+ cc_free_ctx(ctx);
+ return -ENOMEM;
+}
+
+static int cc_get_hash_len(struct crypto_tfm *tfm)
+{
+ struct cc_hash_ctx *ctx = crypto_tfm_ctx_dma(tfm);
+
+ if (ctx->hash_mode == DRV_HASH_SM3)
+ return CC_SM3_HASH_LEN_SIZE;
+ else
+ return cc_get_default_hash_len(ctx->drvdata);
+}
+
+static int cc_cra_init(struct crypto_tfm *tfm)
+{
+ struct cc_hash_ctx *ctx = crypto_tfm_ctx_dma(tfm);
+ struct hash_alg_common *hash_alg_common =
+ container_of(tfm->__crt_alg, struct hash_alg_common, base);
+ struct ahash_alg *ahash_alg =
+ container_of(hash_alg_common, struct ahash_alg, halg);
+ struct cc_hash_alg *cc_alg =
+ container_of(ahash_alg, struct cc_hash_alg, ahash_alg);
+
+ crypto_ahash_set_reqsize_dma(__crypto_ahash_cast(tfm),
+ sizeof(struct ahash_req_ctx));
+
+ ctx->hash_mode = cc_alg->hash_mode;
+ ctx->hw_mode = cc_alg->hw_mode;
+ ctx->inter_digestsize = cc_alg->inter_digestsize;
+ ctx->drvdata = cc_alg->drvdata;
+ ctx->hash_len = cc_get_hash_len(tfm);
+ return cc_alloc_ctx(ctx);
+}
+
+static void cc_cra_exit(struct crypto_tfm *tfm)
+{
+ struct cc_hash_ctx *ctx = crypto_tfm_ctx_dma(tfm);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+ dev_dbg(dev, "cc_cra_exit");
+ cc_free_ctx(ctx);
+}
+
+static int cc_mac_update(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base);
+ struct cc_crypto_req cc_req = {};
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ int rc;
+ u32 idx = 0;
+ gfp_t flags = cc_gfp_flags(&req->base);
+
+ if (req->nbytes == 0) {
+ /* no real updates required */
+ return 0;
+ }
+
+ state->xcbc_count++;
+
+ rc = cc_map_hash_request_update(ctx->drvdata, state, req->src,
+ req->nbytes, block_size, flags);
+ if (rc) {
+ if (rc == 1) {
+ dev_dbg(dev, " data size not require HW update %x\n",
+ req->nbytes);
+ /* No hardware updates are required */
+ return 0;
+ }
+ dev_err(dev, "map_ahash_request_update() failed\n");
+ return -ENOMEM;
+ }
+
+ if (cc_map_req(dev, state, ctx)) {
+ dev_err(dev, "map_ahash_source() failed\n");
+ return -EINVAL;
+ }
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC)
+ cc_setup_xcbc(req, desc, &idx);
+ else
+ cc_setup_cmac(req, desc, &idx);
+
+ cc_set_desc(state, ctx, DIN_AES_DOUT, desc, true, &idx);
+
+ /* store the hash digest result in context */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
+ ctx->inter_digestsize, NS_BIT, 1);
+ set_queue_last_ind(ctx->drvdata, &desc[idx]);
+ set_flow_mode(&desc[idx], S_AES_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* Setup request structure */
+ cc_req.user_cb = cc_update_complete;
+ cc_req.user_arg = req;
+
+ rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
+ if (rc != -EINPROGRESS && rc != -EBUSY) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, req->src, true);
+ cc_unmap_req(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int cc_mac_final(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ struct cc_crypto_req cc_req = {};
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ int idx = 0;
+ int rc = 0;
+ u32 key_size, key_len;
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ gfp_t flags = cc_gfp_flags(&req->base);
+ u32 rem_cnt = *cc_hash_buf_cnt(state);
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ key_size = CC_AES_128_BIT_KEY_SIZE;
+ key_len = CC_AES_128_BIT_KEY_SIZE;
+ } else {
+ key_size = (ctx->key_params.keylen == 24) ? AES_MAX_KEY_SIZE :
+ ctx->key_params.keylen;
+ key_len = ctx->key_params.keylen;
+ }
+
+ dev_dbg(dev, "===== final xcbc reminder (%d) ====\n", rem_cnt);
+
+ if (cc_map_req(dev, state, ctx)) {
+ dev_err(dev, "map_ahash_source() failed\n");
+ return -EINVAL;
+ }
+
+ if (cc_map_hash_request_final(ctx->drvdata, state, req->src,
+ req->nbytes, 0, flags)) {
+ dev_err(dev, "map_ahash_request_final() failed\n");
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ if (cc_map_result(dev, state, digestsize)) {
+ dev_err(dev, "map_ahash_digest() failed\n");
+ cc_unmap_hash_request(dev, state, req->src, true);
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ /* Setup request structure */
+ cc_req.user_cb = cc_hash_complete;
+ cc_req.user_arg = req;
+
+ if (state->xcbc_count && rem_cnt == 0) {
+ /* Load key for ECB decryption */
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], DRV_CIPHER_ECB);
+ set_cipher_config0(&desc[idx], DRV_CRYPTO_DIRECTION_DECRYPT);
+ set_din_type(&desc[idx], DMA_DLLI,
+ (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K1_OFFSET),
+ key_size, NS_BIT);
+ set_key_size_aes(&desc[idx], key_len);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ /* Initiate decryption of block state to previous
+ * block_state-XOR-M[n]
+ */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
+ CC_AES_BLOCK_SIZE, NS_BIT);
+ set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
+ CC_AES_BLOCK_SIZE, NS_BIT, 0);
+ set_flow_mode(&desc[idx], DIN_AES_DOUT);
+ idx++;
+
+ /* Memory Barrier: wait for axi write to complete */
+ hw_desc_init(&desc[idx]);
+ set_din_no_dma(&desc[idx], 0, 0xfffff0);
+ set_dout_no_dma(&desc[idx], 0, 0, 1);
+ idx++;
+ }
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC)
+ cc_setup_xcbc(req, desc, &idx);
+ else
+ cc_setup_cmac(req, desc, &idx);
+
+ if (state->xcbc_count == 0) {
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_key_size_aes(&desc[idx], key_len);
+ set_cmac_size0_mode(&desc[idx]);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+ } else if (rem_cnt > 0) {
+ cc_set_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx);
+ } else {
+ hw_desc_init(&desc[idx]);
+ set_din_const(&desc[idx], 0x00, CC_AES_BLOCK_SIZE);
+ set_flow_mode(&desc[idx], DIN_AES_DOUT);
+ idx++;
+ }
+
+ /* Get final MAC result */
+ hw_desc_init(&desc[idx]);
+ set_dout_dlli(&desc[idx], state->digest_result_dma_addr,
+ digestsize, NS_BIT, 1);
+ set_queue_last_ind(ctx->drvdata, &desc[idx]);
+ set_flow_mode(&desc[idx], S_AES_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
+ if (rc != -EINPROGRESS && rc != -EBUSY) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, req->src, true);
+ cc_unmap_result(dev, state, digestsize, req->result);
+ cc_unmap_req(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int cc_mac_finup(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ struct cc_crypto_req cc_req = {};
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ int idx = 0;
+ int rc = 0;
+ u32 key_len = 0;
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ gfp_t flags = cc_gfp_flags(&req->base);
+
+ dev_dbg(dev, "===== finup xcbc(%d) ====\n", req->nbytes);
+ if (state->xcbc_count > 0 && req->nbytes == 0) {
+ dev_dbg(dev, "No data to update. Call to fdx_mac_final\n");
+ return cc_mac_final(req);
+ }
+
+ if (cc_map_req(dev, state, ctx)) {
+ dev_err(dev, "map_ahash_source() failed\n");
+ return -EINVAL;
+ }
+
+ if (cc_map_hash_request_final(ctx->drvdata, state, req->src,
+ req->nbytes, 1, flags)) {
+ dev_err(dev, "map_ahash_request_final() failed\n");
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+ if (cc_map_result(dev, state, digestsize)) {
+ dev_err(dev, "map_ahash_digest() failed\n");
+ cc_unmap_hash_request(dev, state, req->src, true);
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ /* Setup request structure */
+ cc_req.user_cb = cc_hash_complete;
+ cc_req.user_arg = req;
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ key_len = CC_AES_128_BIT_KEY_SIZE;
+ cc_setup_xcbc(req, desc, &idx);
+ } else {
+ key_len = ctx->key_params.keylen;
+ cc_setup_cmac(req, desc, &idx);
+ }
+
+ if (req->nbytes == 0) {
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_key_size_aes(&desc[idx], key_len);
+ set_cmac_size0_mode(&desc[idx]);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+ } else {
+ cc_set_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx);
+ }
+
+ /* Get final MAC result */
+ hw_desc_init(&desc[idx]);
+ set_dout_dlli(&desc[idx], state->digest_result_dma_addr,
+ digestsize, NS_BIT, 1);
+ set_queue_last_ind(ctx->drvdata, &desc[idx]);
+ set_flow_mode(&desc[idx], S_AES_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
+ if (rc != -EINPROGRESS && rc != -EBUSY) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, req->src, true);
+ cc_unmap_result(dev, state, digestsize, req->result);
+ cc_unmap_req(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int cc_mac_digest(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ struct cc_crypto_req cc_req = {};
+ struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN];
+ u32 key_len;
+ unsigned int idx = 0;
+ int rc;
+ gfp_t flags = cc_gfp_flags(&req->base);
+
+ dev_dbg(dev, "===== -digest mac (%d) ====\n", req->nbytes);
+
+ cc_init_req(dev, state, ctx);
+
+ if (cc_map_req(dev, state, ctx)) {
+ dev_err(dev, "map_ahash_source() failed\n");
+ return -ENOMEM;
+ }
+ if (cc_map_result(dev, state, digestsize)) {
+ dev_err(dev, "map_ahash_digest() failed\n");
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ if (cc_map_hash_request_final(ctx->drvdata, state, req->src,
+ req->nbytes, 1, flags)) {
+ dev_err(dev, "map_ahash_request_final() failed\n");
+ cc_unmap_req(dev, state, ctx);
+ return -ENOMEM;
+ }
+
+ /* Setup request structure */
+ cc_req.user_cb = cc_digest_complete;
+ cc_req.user_arg = req;
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ key_len = CC_AES_128_BIT_KEY_SIZE;
+ cc_setup_xcbc(req, desc, &idx);
+ } else {
+ key_len = ctx->key_params.keylen;
+ cc_setup_cmac(req, desc, &idx);
+ }
+
+ if (req->nbytes == 0) {
+ hw_desc_init(&desc[idx]);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ set_key_size_aes(&desc[idx], key_len);
+ set_cmac_size0_mode(&desc[idx]);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+ } else {
+ cc_set_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx);
+ }
+
+ /* Get final MAC result */
+ hw_desc_init(&desc[idx]);
+ set_dout_dlli(&desc[idx], state->digest_result_dma_addr,
+ CC_AES_BLOCK_SIZE, NS_BIT, 1);
+ set_queue_last_ind(ctx->drvdata, &desc[idx]);
+ set_flow_mode(&desc[idx], S_AES_to_DOUT);
+ set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
+ set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ set_cipher_mode(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
+ if (rc != -EINPROGRESS && rc != -EBUSY) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, req->src, true);
+ cc_unmap_result(dev, state, digestsize, req->result);
+ cc_unmap_req(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int cc_hash_export(struct ahash_request *req, void *out)
+{
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash);
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ u8 *curr_buff = cc_hash_buf(state);
+ u32 curr_buff_cnt = *cc_hash_buf_cnt(state);
+ const u32 tmp = CC_EXPORT_MAGIC;
+
+ memcpy(out, &tmp, sizeof(u32));
+ out += sizeof(u32);
+
+ memcpy(out, state->digest_buff, ctx->inter_digestsize);
+ out += ctx->inter_digestsize;
+
+ memcpy(out, state->digest_bytes_len, ctx->hash_len);
+ out += ctx->hash_len;
+
+ memcpy(out, &curr_buff_cnt, sizeof(u32));
+ out += sizeof(u32);
+
+ memcpy(out, curr_buff, curr_buff_cnt);
+
+ return 0;
+}
+
+static int cc_hash_import(struct ahash_request *req, const void *in)
+{
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash);
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(req);
+ u32 tmp;
+
+ memcpy(&tmp, in, sizeof(u32));
+ if (tmp != CC_EXPORT_MAGIC)
+ return -EINVAL;
+ in += sizeof(u32);
+
+ cc_init_req(dev, state, ctx);
+
+ memcpy(state->digest_buff, in, ctx->inter_digestsize);
+ in += ctx->inter_digestsize;
+
+ memcpy(state->digest_bytes_len, in, ctx->hash_len);
+ in += ctx->hash_len;
+
+ /* Sanity check the data as much as possible */
+ memcpy(&tmp, in, sizeof(u32));
+ if (tmp > CC_MAX_HASH_BLCK_SIZE)
+ return -EINVAL;
+ in += sizeof(u32);
+
+ state->buf_cnt[0] = tmp;
+ memcpy(state->buffers[0], in, tmp);
+
+ return 0;
+}
+
+struct cc_hash_template {
+ char name[CRYPTO_MAX_ALG_NAME];
+ char driver_name[CRYPTO_MAX_ALG_NAME];
+ char mac_name[CRYPTO_MAX_ALG_NAME];
+ char mac_driver_name[CRYPTO_MAX_ALG_NAME];
+ unsigned int blocksize;
+ bool is_mac;
+ bool synchronize;
+ struct ahash_alg template_ahash;
+ int hash_mode;
+ int hw_mode;
+ int inter_digestsize;
+ struct cc_drvdata *drvdata;
+ u32 min_hw_rev;
+ enum cc_std_body std_body;
+};
+
+#define CC_STATE_SIZE(_x) \
+ ((_x) + HASH_MAX_LEN_SIZE + CC_MAX_HASH_BLCK_SIZE + (2 * sizeof(u32)))
+
+/* hash descriptors */
+static struct cc_hash_template driver_hash[] = {
+ //Asynchronize hash template
+ {
+ .name = "sha1",
+ .driver_name = "sha1-ccree",
+ .mac_name = "hmac(sha1)",
+ .mac_driver_name = "hmac-sha1-ccree",
+ .blocksize = SHA1_BLOCK_SIZE,
+ .is_mac = true,
+ .synchronize = false,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_hash_update,
+ .final = cc_hash_final,
+ .finup = cc_hash_finup,
+ .digest = cc_hash_digest,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .setkey = cc_hash_setkey,
+ .halg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .statesize = CC_STATE_SIZE(SHA1_DIGEST_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA1,
+ .hw_mode = DRV_HASH_HW_SHA1,
+ .inter_digestsize = SHA1_DIGEST_SIZE,
+ .min_hw_rev = CC_HW_REV_630,
+ .std_body = CC_STD_NIST,
+ },
+ {
+ .name = "sha256",
+ .driver_name = "sha256-ccree",
+ .mac_name = "hmac(sha256)",
+ .mac_driver_name = "hmac-sha256-ccree",
+ .blocksize = SHA256_BLOCK_SIZE,
+ .is_mac = true,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_hash_update,
+ .final = cc_hash_final,
+ .finup = cc_hash_finup,
+ .digest = cc_hash_digest,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .setkey = cc_hash_setkey,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = CC_STATE_SIZE(SHA256_DIGEST_SIZE)
+ },
+ },
+ .hash_mode = DRV_HASH_SHA256,
+ .hw_mode = DRV_HASH_HW_SHA256,
+ .inter_digestsize = SHA256_DIGEST_SIZE,
+ .min_hw_rev = CC_HW_REV_630,
+ .std_body = CC_STD_NIST,
+ },
+ {
+ .name = "sha224",
+ .driver_name = "sha224-ccree",
+ .mac_name = "hmac(sha224)",
+ .mac_driver_name = "hmac-sha224-ccree",
+ .blocksize = SHA224_BLOCK_SIZE,
+ .is_mac = true,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_hash_update,
+ .final = cc_hash_final,
+ .finup = cc_hash_finup,
+ .digest = cc_hash_digest,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .setkey = cc_hash_setkey,
+ .halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = CC_STATE_SIZE(SHA256_DIGEST_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA224,
+ .hw_mode = DRV_HASH_HW_SHA256,
+ .inter_digestsize = SHA256_DIGEST_SIZE,
+ .min_hw_rev = CC_HW_REV_630,
+ .std_body = CC_STD_NIST,
+ },
+ {
+ .name = "sha384",
+ .driver_name = "sha384-ccree",
+ .mac_name = "hmac(sha384)",
+ .mac_driver_name = "hmac-sha384-ccree",
+ .blocksize = SHA384_BLOCK_SIZE,
+ .is_mac = true,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_hash_update,
+ .final = cc_hash_final,
+ .finup = cc_hash_finup,
+ .digest = cc_hash_digest,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .setkey = cc_hash_setkey,
+ .halg = {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .statesize = CC_STATE_SIZE(SHA512_DIGEST_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA384,
+ .hw_mode = DRV_HASH_HW_SHA512,
+ .inter_digestsize = SHA512_DIGEST_SIZE,
+ .min_hw_rev = CC_HW_REV_712,
+ .std_body = CC_STD_NIST,
+ },
+ {
+ .name = "sha512",
+ .driver_name = "sha512-ccree",
+ .mac_name = "hmac(sha512)",
+ .mac_driver_name = "hmac-sha512-ccree",
+ .blocksize = SHA512_BLOCK_SIZE,
+ .is_mac = true,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_hash_update,
+ .final = cc_hash_final,
+ .finup = cc_hash_finup,
+ .digest = cc_hash_digest,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .setkey = cc_hash_setkey,
+ .halg = {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .statesize = CC_STATE_SIZE(SHA512_DIGEST_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA512,
+ .hw_mode = DRV_HASH_HW_SHA512,
+ .inter_digestsize = SHA512_DIGEST_SIZE,
+ .min_hw_rev = CC_HW_REV_712,
+ .std_body = CC_STD_NIST,
+ },
+ {
+ .name = "md5",
+ .driver_name = "md5-ccree",
+ .mac_name = "hmac(md5)",
+ .mac_driver_name = "hmac-md5-ccree",
+ .blocksize = MD5_HMAC_BLOCK_SIZE,
+ .is_mac = true,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_hash_update,
+ .final = cc_hash_final,
+ .finup = cc_hash_finup,
+ .digest = cc_hash_digest,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .setkey = cc_hash_setkey,
+ .halg = {
+ .digestsize = MD5_DIGEST_SIZE,
+ .statesize = CC_STATE_SIZE(MD5_DIGEST_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_MD5,
+ .hw_mode = DRV_HASH_HW_MD5,
+ .inter_digestsize = MD5_DIGEST_SIZE,
+ .min_hw_rev = CC_HW_REV_630,
+ .std_body = CC_STD_NIST,
+ },
+ {
+ .name = "sm3",
+ .driver_name = "sm3-ccree",
+ .blocksize = SM3_BLOCK_SIZE,
+ .is_mac = false,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_hash_update,
+ .final = cc_hash_final,
+ .finup = cc_hash_finup,
+ .digest = cc_hash_digest,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .setkey = cc_hash_setkey,
+ .halg = {
+ .digestsize = SM3_DIGEST_SIZE,
+ .statesize = CC_STATE_SIZE(SM3_DIGEST_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_SM3,
+ .hw_mode = DRV_HASH_HW_SM3,
+ .inter_digestsize = SM3_DIGEST_SIZE,
+ .min_hw_rev = CC_HW_REV_713,
+ .std_body = CC_STD_OSCCA,
+ },
+ {
+ .mac_name = "xcbc(aes)",
+ .mac_driver_name = "xcbc-aes-ccree",
+ .blocksize = AES_BLOCK_SIZE,
+ .is_mac = true,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_mac_update,
+ .final = cc_mac_final,
+ .finup = cc_mac_finup,
+ .digest = cc_mac_digest,
+ .setkey = cc_xcbc_setkey,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .halg = {
+ .digestsize = AES_BLOCK_SIZE,
+ .statesize = CC_STATE_SIZE(AES_BLOCK_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_NULL,
+ .hw_mode = DRV_CIPHER_XCBC_MAC,
+ .inter_digestsize = AES_BLOCK_SIZE,
+ .min_hw_rev = CC_HW_REV_630,
+ .std_body = CC_STD_NIST,
+ },
+ {
+ .mac_name = "cmac(aes)",
+ .mac_driver_name = "cmac-aes-ccree",
+ .blocksize = AES_BLOCK_SIZE,
+ .is_mac = true,
+ .template_ahash = {
+ .init = cc_hash_init,
+ .update = cc_mac_update,
+ .final = cc_mac_final,
+ .finup = cc_mac_finup,
+ .digest = cc_mac_digest,
+ .setkey = cc_cmac_setkey,
+ .export = cc_hash_export,
+ .import = cc_hash_import,
+ .halg = {
+ .digestsize = AES_BLOCK_SIZE,
+ .statesize = CC_STATE_SIZE(AES_BLOCK_SIZE),
+ },
+ },
+ .hash_mode = DRV_HASH_NULL,
+ .hw_mode = DRV_CIPHER_CMAC,
+ .inter_digestsize = AES_BLOCK_SIZE,
+ .min_hw_rev = CC_HW_REV_630,
+ .std_body = CC_STD_NIST,
+ },
+};
+
+static struct cc_hash_alg *cc_alloc_hash_alg(struct cc_hash_template *template,
+ struct device *dev, bool keyed)
+{
+ struct cc_hash_alg *t_crypto_alg;
+ struct crypto_alg *alg;
+ struct ahash_alg *halg;
+
+ t_crypto_alg = devm_kzalloc(dev, sizeof(*t_crypto_alg), GFP_KERNEL);
+ if (!t_crypto_alg)
+ return ERR_PTR(-ENOMEM);
+
+ t_crypto_alg->ahash_alg = template->template_ahash;
+ halg = &t_crypto_alg->ahash_alg;
+ alg = &halg->halg.base;
+
+ if (keyed) {
+ snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->mac_name);
+ snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->mac_driver_name);
+ } else {
+ halg->setkey = NULL;
+ snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->name);
+ snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->driver_name);
+ }
+ alg->cra_module = THIS_MODULE;
+ alg->cra_ctxsize = sizeof(struct cc_hash_ctx) + crypto_dma_padding();
+ alg->cra_priority = CC_CRA_PRIO;
+ alg->cra_blocksize = template->blocksize;
+ alg->cra_alignmask = 0;
+ alg->cra_exit = cc_cra_exit;
+
+ alg->cra_init = cc_cra_init;
+ alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY;
+
+ t_crypto_alg->hash_mode = template->hash_mode;
+ t_crypto_alg->hw_mode = template->hw_mode;
+ t_crypto_alg->inter_digestsize = template->inter_digestsize;
+
+ return t_crypto_alg;
+}
+
+static int cc_init_copy_sram(struct cc_drvdata *drvdata, const u32 *data,
+ unsigned int size, u32 *sram_buff_ofs)
+{
+ struct cc_hw_desc larval_seq[CC_DIGEST_SIZE_MAX / sizeof(u32)];
+ unsigned int larval_seq_len = 0;
+ int rc;
+
+ cc_set_sram_desc(data, *sram_buff_ofs, size / sizeof(*data),
+ larval_seq, &larval_seq_len);
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (rc)
+ return rc;
+
+ *sram_buff_ofs += size;
+ return 0;
+}
+
+int cc_init_hash_sram(struct cc_drvdata *drvdata)
+{
+ struct cc_hash_handle *hash_handle = drvdata->hash_handle;
+ u32 sram_buff_ofs = hash_handle->digest_len_sram_addr;
+ bool large_sha_supported = (drvdata->hw_rev >= CC_HW_REV_712);
+ bool sm3_supported = (drvdata->hw_rev >= CC_HW_REV_713);
+ int rc = 0;
+
+ /* Copy-to-sram digest-len */
+ rc = cc_init_copy_sram(drvdata, cc_digest_len_init,
+ sizeof(cc_digest_len_init), &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+
+ if (large_sha_supported) {
+ /* Copy-to-sram digest-len for sha384/512 */
+ rc = cc_init_copy_sram(drvdata, cc_digest_len_sha512_init,
+ sizeof(cc_digest_len_sha512_init),
+ &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+ }
+
+ /* The initial digests offset */
+ hash_handle->larval_digest_sram_addr = sram_buff_ofs;
+
+ /* Copy-to-sram initial SHA* digests */
+ rc = cc_init_copy_sram(drvdata, cc_md5_init, sizeof(cc_md5_init),
+ &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+
+ rc = cc_init_copy_sram(drvdata, cc_sha1_init, sizeof(cc_sha1_init),
+ &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+
+ rc = cc_init_copy_sram(drvdata, cc_sha224_init, sizeof(cc_sha224_init),
+ &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+
+ rc = cc_init_copy_sram(drvdata, cc_sha256_init, sizeof(cc_sha256_init),
+ &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+
+ if (sm3_supported) {
+ rc = cc_init_copy_sram(drvdata, cc_sm3_init,
+ sizeof(cc_sm3_init), &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+ }
+
+ if (large_sha_supported) {
+ rc = cc_init_copy_sram(drvdata, cc_sha384_init,
+ sizeof(cc_sha384_init), &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+
+ rc = cc_init_copy_sram(drvdata, cc_sha512_init,
+ sizeof(cc_sha512_init), &sram_buff_ofs);
+ if (rc)
+ goto init_digest_const_err;
+ }
+
+init_digest_const_err:
+ return rc;
+}
+
+int cc_hash_alloc(struct cc_drvdata *drvdata)
+{
+ struct cc_hash_handle *hash_handle;
+ u32 sram_buff;
+ u32 sram_size_to_alloc;
+ struct device *dev = drvdata_to_dev(drvdata);
+ int rc = 0;
+ int alg;
+
+ hash_handle = devm_kzalloc(dev, sizeof(*hash_handle), GFP_KERNEL);
+ if (!hash_handle)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&hash_handle->hash_list);
+ drvdata->hash_handle = hash_handle;
+
+ sram_size_to_alloc = sizeof(cc_digest_len_init) +
+ sizeof(cc_md5_init) +
+ sizeof(cc_sha1_init) +
+ sizeof(cc_sha224_init) +
+ sizeof(cc_sha256_init);
+
+ if (drvdata->hw_rev >= CC_HW_REV_713)
+ sram_size_to_alloc += sizeof(cc_sm3_init);
+
+ if (drvdata->hw_rev >= CC_HW_REV_712)
+ sram_size_to_alloc += sizeof(cc_digest_len_sha512_init) +
+ sizeof(cc_sha384_init) + sizeof(cc_sha512_init);
+
+ sram_buff = cc_sram_alloc(drvdata, sram_size_to_alloc);
+ if (sram_buff == NULL_SRAM_ADDR) {
+ rc = -ENOMEM;
+ goto fail;
+ }
+
+ /* The initial digest-len offset */
+ hash_handle->digest_len_sram_addr = sram_buff;
+
+ /*must be set before the alg registration as it is being used there*/
+ rc = cc_init_hash_sram(drvdata);
+ if (rc) {
+ dev_err(dev, "Init digest CONST failed (rc=%d)\n", rc);
+ goto fail;
+ }
+
+ /* ahash registration */
+ for (alg = 0; alg < ARRAY_SIZE(driver_hash); alg++) {
+ struct cc_hash_alg *t_alg;
+ int hw_mode = driver_hash[alg].hw_mode;
+
+ /* Check that the HW revision and variants are suitable */
+ if ((driver_hash[alg].min_hw_rev > drvdata->hw_rev) ||
+ !(drvdata->std_bodies & driver_hash[alg].std_body))
+ continue;
+
+ if (driver_hash[alg].is_mac) {
+ /* register hmac version */
+ t_alg = cc_alloc_hash_alg(&driver_hash[alg], dev, true);
+ if (IS_ERR(t_alg)) {
+ rc = PTR_ERR(t_alg);
+ dev_err(dev, "%s alg allocation failed\n",
+ driver_hash[alg].driver_name);
+ goto fail;
+ }
+ t_alg->drvdata = drvdata;
+
+ rc = crypto_register_ahash(&t_alg->ahash_alg);
+ if (rc) {
+ dev_err(dev, "%s alg registration failed\n",
+ driver_hash[alg].driver_name);
+ goto fail;
+ }
+
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
+ }
+ if (hw_mode == DRV_CIPHER_XCBC_MAC ||
+ hw_mode == DRV_CIPHER_CMAC)
+ continue;
+
+ /* register hash version */
+ t_alg = cc_alloc_hash_alg(&driver_hash[alg], dev, false);
+ if (IS_ERR(t_alg)) {
+ rc = PTR_ERR(t_alg);
+ dev_err(dev, "%s alg allocation failed\n",
+ driver_hash[alg].driver_name);
+ goto fail;
+ }
+ t_alg->drvdata = drvdata;
+
+ rc = crypto_register_ahash(&t_alg->ahash_alg);
+ if (rc) {
+ dev_err(dev, "%s alg registration failed\n",
+ driver_hash[alg].driver_name);
+ goto fail;
+ }
+
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
+ }
+
+ return 0;
+
+fail:
+ cc_hash_free(drvdata);
+ return rc;
+}
+
+int cc_hash_free(struct cc_drvdata *drvdata)
+{
+ struct cc_hash_alg *t_hash_alg, *hash_n;
+ struct cc_hash_handle *hash_handle = drvdata->hash_handle;
+
+ list_for_each_entry_safe(t_hash_alg, hash_n, &hash_handle->hash_list,
+ entry) {
+ crypto_unregister_ahash(&t_hash_alg->ahash_alg);
+ list_del(&t_hash_alg->entry);
+ }
+
+ return 0;
+}
+
+static void cc_setup_xcbc(struct ahash_request *areq, struct cc_hw_desc desc[],
+ unsigned int *seq_size)
+{
+ unsigned int idx = *seq_size;
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(areq);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+
+ /* Setup XCBC MAC K1 */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, (ctx->opad_tmp_keys_dma_addr +
+ XCBC_MAC_K1_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ set_hash_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC, ctx->hash_mode);
+ set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ set_key_size_aes(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Setup XCBC MAC K2 */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI,
+ (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K2_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE1);
+ set_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC);
+ set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ set_key_size_aes(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Setup XCBC MAC K3 */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI,
+ (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K3_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE2);
+ set_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC);
+ set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ set_key_size_aes(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Loading MAC state */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
+ CC_AES_BLOCK_SIZE, NS_BIT);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
+ set_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC);
+ set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ set_key_size_aes(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+ *seq_size = idx;
+}
+
+static void cc_setup_cmac(struct ahash_request *areq, struct cc_hw_desc desc[],
+ unsigned int *seq_size)
+{
+ unsigned int idx = *seq_size;
+ struct ahash_req_ctx *state = ahash_request_ctx_dma(areq);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct cc_hash_ctx *ctx = crypto_ahash_ctx_dma(tfm);
+
+ /* Setup CMAC Key */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, ctx->opad_tmp_keys_dma_addr,
+ ((ctx->key_params.keylen == 24) ? AES_MAX_KEY_SIZE :
+ ctx->key_params.keylen), NS_BIT);
+ set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
+ set_cipher_mode(&desc[idx], DRV_CIPHER_CMAC);
+ set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ set_key_size_aes(&desc[idx], ctx->key_params.keylen);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Load MAC state */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
+ CC_AES_BLOCK_SIZE, NS_BIT);
+ set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
+ set_cipher_mode(&desc[idx], DRV_CIPHER_CMAC);
+ set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ set_key_size_aes(&desc[idx], ctx->key_params.keylen);
+ set_flow_mode(&desc[idx], S_DIN_to_AES);
+ idx++;
+ *seq_size = idx;
+}
+
+static void cc_set_desc(struct ahash_req_ctx *areq_ctx,
+ struct cc_hash_ctx *ctx, unsigned int flow_mode,
+ struct cc_hw_desc desc[], bool is_not_last_data,
+ unsigned int *seq_size)
+{
+ unsigned int idx = *seq_size;
+ struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+ if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_DLLI) {
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI,
+ sg_dma_address(areq_ctx->curr_sg),
+ areq_ctx->curr_sg->length, NS_BIT);
+ set_flow_mode(&desc[idx], flow_mode);
+ idx++;
+ } else {
+ if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_NULL) {
+ dev_dbg(dev, " NULL mode\n");
+ /* nothing to build */
+ return;
+ }
+ /* bypass */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_DLLI,
+ areq_ctx->mlli_params.mlli_dma_addr,
+ areq_ctx->mlli_params.mlli_len, NS_BIT);
+ set_dout_sram(&desc[idx], ctx->drvdata->mlli_sram_addr,
+ areq_ctx->mlli_params.mlli_len);
+ set_flow_mode(&desc[idx], BYPASS);
+ idx++;
+ /* process */
+ hw_desc_init(&desc[idx]);
+ set_din_type(&desc[idx], DMA_MLLI,
+ ctx->drvdata->mlli_sram_addr,
+ areq_ctx->mlli_nents, NS_BIT);
+ set_flow_mode(&desc[idx], flow_mode);
+ idx++;
+ }
+ if (is_not_last_data)
+ set_din_not_last_indication(&desc[(idx - 1)]);
+ /* return updated desc sequence size */
+ *seq_size = idx;
+}
+
+static const void *cc_larval_digest(struct device *dev, u32 mode)
+{
+ switch (mode) {
+ case DRV_HASH_MD5:
+ return cc_md5_init;
+ case DRV_HASH_SHA1:
+ return cc_sha1_init;
+ case DRV_HASH_SHA224:
+ return cc_sha224_init;
+ case DRV_HASH_SHA256:
+ return cc_sha256_init;
+ case DRV_HASH_SHA384:
+ return cc_sha384_init;
+ case DRV_HASH_SHA512:
+ return cc_sha512_init;
+ case DRV_HASH_SM3:
+ return cc_sm3_init;
+ default:
+ dev_err(dev, "Invalid hash mode (%d)\n", mode);
+ return cc_md5_init;
+ }
+}
+
+/**
+ * cc_larval_digest_addr() - Get the address of the initial digest in SRAM
+ * according to the given hash mode
+ *
+ * @drvdata: Associated device driver context
+ * @mode: The Hash mode. Supported modes: MD5/SHA1/SHA224/SHA256
+ *
+ * Return:
+ * The address of the initial digest in SRAM
+ */
+u32 cc_larval_digest_addr(void *drvdata, u32 mode)
+{
+ struct cc_drvdata *_drvdata = (struct cc_drvdata *)drvdata;
+ struct cc_hash_handle *hash_handle = _drvdata->hash_handle;
+ struct device *dev = drvdata_to_dev(_drvdata);
+ bool sm3_supported = (_drvdata->hw_rev >= CC_HW_REV_713);
+ u32 addr;
+
+ switch (mode) {
+ case DRV_HASH_NULL:
+ break; /*Ignore*/
+ case DRV_HASH_MD5:
+ return (hash_handle->larval_digest_sram_addr);
+ case DRV_HASH_SHA1:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(cc_md5_init));
+ case DRV_HASH_SHA224:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(cc_md5_init) +
+ sizeof(cc_sha1_init));
+ case DRV_HASH_SHA256:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(cc_md5_init) +
+ sizeof(cc_sha1_init) +
+ sizeof(cc_sha224_init));
+ case DRV_HASH_SM3:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(cc_md5_init) +
+ sizeof(cc_sha1_init) +
+ sizeof(cc_sha224_init) +
+ sizeof(cc_sha256_init));
+ case DRV_HASH_SHA384:
+ addr = (hash_handle->larval_digest_sram_addr +
+ sizeof(cc_md5_init) +
+ sizeof(cc_sha1_init) +
+ sizeof(cc_sha224_init) +
+ sizeof(cc_sha256_init));
+ if (sm3_supported)
+ addr += sizeof(cc_sm3_init);
+ return addr;
+ case DRV_HASH_SHA512:
+ addr = (hash_handle->larval_digest_sram_addr +
+ sizeof(cc_md5_init) +
+ sizeof(cc_sha1_init) +
+ sizeof(cc_sha224_init) +
+ sizeof(cc_sha256_init) +
+ sizeof(cc_sha384_init));
+ if (sm3_supported)
+ addr += sizeof(cc_sm3_init);
+ return addr;
+ default:
+ dev_err(dev, "Invalid hash mode (%d)\n", mode);
+ }
+
+ /*This is valid wrong value to avoid kernel crash*/
+ return hash_handle->larval_digest_sram_addr;
+}
+
+u32 cc_digest_len_addr(void *drvdata, u32 mode)
+{
+ struct cc_drvdata *_drvdata = (struct cc_drvdata *)drvdata;
+ struct cc_hash_handle *hash_handle = _drvdata->hash_handle;
+ u32 digest_len_addr = hash_handle->digest_len_sram_addr;
+
+ switch (mode) {
+ case DRV_HASH_SHA1:
+ case DRV_HASH_SHA224:
+ case DRV_HASH_SHA256:
+ case DRV_HASH_MD5:
+ return digest_len_addr;
+ case DRV_HASH_SHA384:
+ case DRV_HASH_SHA512:
+ return digest_len_addr + sizeof(cc_digest_len_init);
+ default:
+ return digest_len_addr; /*to avoid kernel crash*/
+ }
+}