* [PATCH v3 1/5] crypto: aspeed: Add HACE hash driver
2022-06-21 6:37 [PATCH v3 0/5] Add Aspeed crypto driver for hardware acceleration Neal Liu
@ 2022-06-21 6:37 ` Neal Liu
2022-06-23 7:13 ` Christophe JAILLET
2022-06-21 6:37 ` [PATCH v3 2/5] dt-bindings: clock: Add AST2600 HACE reset definition Neal Liu
` (3 subsequent siblings)
4 siblings, 1 reply; 8+ messages in thread
From: Neal Liu @ 2022-06-21 6:37 UTC (permalink / raw)
To: Corentin Labbe, Christophe JAILLET, Randy Dunlap, Herbert Xu,
David S . Miller, Rob Herring, Krzysztof Kozlowski, Joel Stanley,
Andrew Jeffery, Dhananjay Phadke, Johnny Huang
Cc: linux-aspeed, linux-crypto, devicetree, linux-arm-kernel,
linux-kernel, BMC-SW
Hash and Crypto Engine (HACE) is designed to accelerate the
throughput of hash data digest, encryption, and decryption.
Basically, HACE can be divided into two independently engines
- Hash Engine and Crypto Engine. This patch aims to add HACE
hash engine driver for hash accelerator.
Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
---
MAINTAINERS | 7 +
drivers/crypto/Kconfig | 1 +
drivers/crypto/Makefile | 1 +
drivers/crypto/aspeed/Kconfig | 23 +
drivers/crypto/aspeed/Makefile | 6 +
drivers/crypto/aspeed/aspeed-hace-hash.c | 1423 ++++++++++++++++++++++
drivers/crypto/aspeed/aspeed-hace.c | 212 ++++
drivers/crypto/aspeed/aspeed-hace.h | 181 +++
8 files changed, 1854 insertions(+)
create mode 100644 drivers/crypto/aspeed/Kconfig
create mode 100644 drivers/crypto/aspeed/Makefile
create mode 100644 drivers/crypto/aspeed/aspeed-hace-hash.c
create mode 100644 drivers/crypto/aspeed/aspeed-hace.c
create mode 100644 drivers/crypto/aspeed/aspeed-hace.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 1fc9ead83d2a..ed1fef2d8066 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3136,6 +3136,13 @@ S: Maintained
F: Documentation/devicetree/bindings/media/aspeed-video.txt
F: drivers/media/platform/aspeed/
+ASPEED CRYPTO DRIVER
+M: Neal Liu <neal_liu@aspeedtech.com>
+L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/crypto/aspeed,ast2500-hace.yaml
+F: drivers/crypto/aspeed/
+
ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS
M: Corentin Chary <corentin.chary@gmail.com>
L: acpi4asus-user@lists.sourceforge.net
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index ee99c02c84e8..b9f5ee126881 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -933,5 +933,6 @@ config CRYPTO_DEV_SA2UL
acceleration for cryptographic algorithms on these devices.
source "drivers/crypto/keembay/Kconfig"
+source "drivers/crypto/aspeed/Kconfig"
endif # CRYPTO_HW
diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
index f81703a86b98..116de173a66c 100644
--- a/drivers/crypto/Makefile
+++ b/drivers/crypto/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_CRYPTO_DEV_ALLWINNER) += allwinner/
+obj-$(CONFIG_CRYPTO_DEV_ASPEED) += aspeed/
obj-$(CONFIG_CRYPTO_DEV_ATMEL_AES) += atmel-aes.o
obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA) += atmel-sha.o
obj-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o
diff --git a/drivers/crypto/aspeed/Kconfig b/drivers/crypto/aspeed/Kconfig
new file mode 100644
index 000000000000..05cba5171c51
--- /dev/null
+++ b/drivers/crypto/aspeed/Kconfig
@@ -0,0 +1,23 @@
+config CRYPTO_DEV_ASPEED
+ tristate "Support for Aspeed cryptographic engine driver"
+ depends on ARCH_ASPEED
+ help
+ Hash and Crypto Engine (HACE) is designed to accelerate the
+ throughput of hash data digest, encryption and decryption.
+
+ Select y here to have support for the cryptographic driver
+ available on Aspeed SoC.
+
+config CRYPTO_DEV_ASPEED_HACE_HASH
+ bool "Enable ASPEED Hash & Crypto Engine (HACE) hash"
+ depends on CRYPTO_DEV_ASPEED
+ select CRYPTO_ENGINE
+ select CRYPTO_SHA1
+ select CRYPTO_SHA256
+ select CRYPTO_SHA512
+ select CRYPTO_HMAC
+ help
+ Select here to enable ASPEED Hash & Crypto Engine (HACE)
+ hash driver.
+ Supports multiple message digest standards, including
+ SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, and so on.
diff --git a/drivers/crypto/aspeed/Makefile b/drivers/crypto/aspeed/Makefile
new file mode 100644
index 000000000000..8bc8d4fed5a9
--- /dev/null
+++ b/drivers/crypto/aspeed/Makefile
@@ -0,0 +1,6 @@
+obj-$(CONFIG_CRYPTO_DEV_ASPEED) += aspeed_crypto.o
+aspeed_crypto-objs := aspeed-hace.o \
+ $(hace-hash-y)
+
+obj-$(CONFIG_CRYPTO_DEV_ASPEED_HACE_HASH) += aspeed-hace-hash.o
+hace-hash-$(CONFIG_CRYPTO_DEV_ASPEED_HACE_HASH) := aspeed-hace-hash.o
diff --git a/drivers/crypto/aspeed/aspeed-hace-hash.c b/drivers/crypto/aspeed/aspeed-hace-hash.c
new file mode 100644
index 000000000000..c34d162aa7b7
--- /dev/null
+++ b/drivers/crypto/aspeed/aspeed-hace-hash.c
@@ -0,0 +1,1423 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Aspeed Technology Inc.
+ */
+
+#include "aspeed-hace.h"
+
+#ifdef ASPEED_AHASH_DEBUG
+#define AHASH_DBG(h, fmt, ...) \
+ dev_dbg((h)->dev, "%s() " fmt, __func__, ##__VA_ARGS__)
+#else
+#define AHASH_DBG(h, fmt, ...) \
+ ((void)(h))
+#endif
+
+/* Initialization Vectors for SHA-family */
+static const u32 sha1_iv[8] = {
+ cpu_to_be32(SHA1_H0), cpu_to_be32(SHA1_H1),
+ cpu_to_be32(SHA1_H2), cpu_to_be32(SHA1_H3),
+ cpu_to_be32(SHA1_H4), 0, 0, 0
+};
+
+static const u32 sha224_iv[8] = {
+ cpu_to_be32(SHA224_H0), cpu_to_be32(SHA224_H1),
+ cpu_to_be32(SHA224_H2), cpu_to_be32(SHA224_H3),
+ cpu_to_be32(SHA224_H4), cpu_to_be32(SHA224_H5),
+ cpu_to_be32(SHA224_H6), cpu_to_be32(SHA224_H7),
+};
+
+static const u32 sha256_iv[8] = {
+ cpu_to_be32(SHA256_H0), cpu_to_be32(SHA256_H1),
+ cpu_to_be32(SHA256_H2), cpu_to_be32(SHA256_H3),
+ cpu_to_be32(SHA256_H4), cpu_to_be32(SHA256_H5),
+ cpu_to_be32(SHA256_H6), cpu_to_be32(SHA256_H7),
+};
+
+#define hilo(x) (cpu_to_be32(upper_32_bits(x)), cpu_to_be32(lower_32_bits(x)))
+
+static const u32 sha384_iv[16] = {
+ hilo(SHA384_H0), hilo(SHA384_H1), hilo(SHA384_H2), hilo(SHA384_H3),
+ hilo(SHA384_H4), hilo(SHA384_H5), hilo(SHA384_H6), hilo(SHA384_H7)
+};
+
+static const u32 sha512_iv[16] = {
+ hilo(SHA512_H0), hilo(SHA512_H1), hilo(SHA512_H2), hilo(SHA512_H3),
+ hilo(SHA512_H4), hilo(SHA512_H5), hilo(SHA512_H6), hilo(SHA512_H7)
+};
+
+static const u32 sha512_224_iv[16] = {
+ cpu_to_be32(0xC8373D8CUL), cpu_to_be32(0xA24D5419UL),
+ cpu_to_be32(0x6699E173UL), cpu_to_be32(0xD6D4DC89UL),
+ cpu_to_be32(0xAEB7FA1DUL), cpu_to_be32(0x829CFF32UL),
+ cpu_to_be32(0x14D59D67UL), cpu_to_be32(0xCF9F2F58UL),
+ cpu_to_be32(0x692B6D0FUL), cpu_to_be32(0xA84DD47BUL),
+ cpu_to_be32(0x736FE377UL), cpu_to_be32(0x4289C404UL),
+ cpu_to_be32(0xA8859D3FUL), cpu_to_be32(0xC8361D6AUL),
+ cpu_to_be32(0xADE61211UL), cpu_to_be32(0xA192D691UL)
+};
+
+static const u32 sha512_256_iv[16] = {
+ cpu_to_be32(0x94213122UL), cpu_to_be32(0x2CF72BFCUL),
+ cpu_to_be32(0xA35F559FUL), cpu_to_be32(0xC2644CC8UL),
+ cpu_to_be32(0x6BB89323UL), cpu_to_be32(0x51B1536FUL),
+ cpu_to_be32(0x19773896UL), cpu_to_be32(0xBDEA4059UL),
+ cpu_to_be32(0xE23E2896UL), cpu_to_be32(0xE3FF8EA8UL),
+ cpu_to_be32(0x251E5EBEUL), cpu_to_be32(0x92398653UL),
+ cpu_to_be32(0xFC99012BUL), cpu_to_be32(0xAAB8852CUL),
+ cpu_to_be32(0xDC2DB70EUL), cpu_to_be32(0xA22CC581UL)
+};
+
+static void aspeed_ahash_iV(struct aspeed_sham_reqctx *rctx)
+{
+ if (rctx->flags & SHA_FLAGS_SHA1)
+ memcpy(rctx->digest, sha1_iv, 32);
+ else if (rctx->flags & SHA_FLAGS_SHA224)
+ memcpy(rctx->digest, sha224_iv, 32);
+ else if (rctx->flags & SHA_FLAGS_SHA256)
+ memcpy(rctx->digest, sha256_iv, 32);
+ else if (rctx->flags & SHA_FLAGS_SHA384)
+ memcpy(rctx->digest, sha384_iv, 64);
+ else if (rctx->flags & SHA_FLAGS_SHA512)
+ memcpy(rctx->digest, sha512_iv, 64);
+ else if (rctx->flags & SHA_FLAGS_SHA512_224)
+ memcpy(rctx->digest, sha512_224_iv, 64);
+ else if (rctx->flags & SHA_FLAGS_SHA512_256)
+ memcpy(rctx->digest, sha512_256_iv, 64);
+}
+
+/* The purpose of this padding is to ensure that the padded message is a
+ * multiple of 512 bits (SHA1/SHA224/SHA256) or 1024 bits (SHA384/SHA512).
+ * The bit "1" is appended at the end of the message followed by
+ * "padlen-1" zero bits. Then a 64 bits block (SHA1/SHA224/SHA256) or
+ * 128 bits block (SHA384/SHA512) equals to the message length in bits
+ * is appended.
+ *
+ * For SHA1/SHA224/SHA256, padlen is calculated as followed:
+ * - if message length < 56 bytes then padlen = 56 - message length
+ * - else padlen = 64 + 56 - message length
+ *
+ * For SHA384/SHA512, padlen is calculated as followed:
+ * - if message length < 112 bytes then padlen = 112 - message length
+ * - else padlen = 128 + 112 - message length
+ */
+static void aspeed_ahash_fill_padding(struct aspeed_hace_dev *hace_dev,
+ struct aspeed_sham_reqctx *rctx)
+{
+ unsigned int index, padlen;
+ __be64 bits[2];
+
+ AHASH_DBG(hace_dev, "rctx flags:0x%x\n", (u32)rctx->flags);
+
+ switch (rctx->flags & SHA_FLAGS_MASK) {
+ case SHA_FLAGS_SHA1:
+ case SHA_FLAGS_SHA224:
+ case SHA_FLAGS_SHA256:
+ bits[0] = cpu_to_be64(rctx->digcnt[0] << 3);
+ index = rctx->bufcnt & 0x3f;
+ padlen = (index < 56) ? (56 - index) : ((64 + 56) - index);
+ *(rctx->buffer + rctx->bufcnt) = 0x80;
+ memset(rctx->buffer + rctx->bufcnt + 1, 0, padlen - 1);
+ memcpy(rctx->buffer + rctx->bufcnt + padlen, bits, 8);
+ rctx->bufcnt += padlen + 8;
+ break;
+ default:
+ bits[1] = cpu_to_be64(rctx->digcnt[0] << 3);
+ bits[0] = cpu_to_be64(rctx->digcnt[1] << 3 |
+ rctx->digcnt[0] >> 61);
+ index = rctx->bufcnt & 0x7f;
+ padlen = (index < 112) ? (112 - index) : ((128 + 112) - index);
+ *(rctx->buffer + rctx->bufcnt) = 0x80;
+ memset(rctx->buffer + rctx->bufcnt + 1, 0, padlen - 1);
+ memcpy(rctx->buffer + rctx->bufcnt + padlen, bits, 16);
+ rctx->bufcnt += padlen + 16;
+ break;
+ }
+}
+
+/*
+ * Prepare DMA buffer before hardware engine
+ * processing.
+ */
+static int aspeed_ahash_dma_prepare(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct device *dev = hace_dev->dev;
+ int length, remain;
+
+ length = rctx->total + rctx->bufcnt;
+ remain = length % rctx->block_size;
+
+ AHASH_DBG(hace_dev, "length:0x%x, remain:0x%x\n", length, remain);
+
+ if (rctx->bufcnt)
+ memcpy(hash_engine->ahash_src_addr, rctx->buffer, rctx->bufcnt);
+
+ if (rctx->total + rctx->bufcnt < ASPEED_CRYPTO_SRC_DMA_BUF_LEN) {
+ scatterwalk_map_and_copy(hash_engine->ahash_src_addr +
+ rctx->bufcnt, rctx->src_sg,
+ rctx->offset, rctx->total - remain, 0);
+ rctx->offset += rctx->total - remain;
+
+ } else {
+ dev_warn(dev, "Hash data length is too large\n");
+ return -EINVAL;
+ }
+
+ scatterwalk_map_and_copy(rctx->buffer, rctx->src_sg,
+ rctx->offset, remain, 0);
+
+ rctx->bufcnt = remain;
+ rctx->digest_dma_addr = dma_map_single(hace_dev->dev, rctx->digest,
+ SHA512_DIGEST_SIZE,
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(hace_dev->dev, rctx->digest_dma_addr)) {
+ dev_warn(hace_dev->dev, "dma_map() rctx digest error\n");
+ return -ENOMEM;
+ }
+
+ hash_engine->src_length = length - remain;
+ hash_engine->src_dma = hash_engine->ahash_src_dma_addr;
+ hash_engine->digest_dma = rctx->digest_dma_addr;
+
+ return 0;
+}
+
+/*
+ * Prepare DMA buffer as SG list buffer before
+ * hardware engine processing.
+ */
+static int aspeed_ahash_dma_prepare_sg(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct aspeed_sg_list *src_list;
+ struct scatterlist *s;
+ int length, remain, sg_len, i;
+ int rc = 0;
+
+ remain = (rctx->total + rctx->bufcnt) % rctx->block_size;
+ length = rctx->total + rctx->bufcnt - remain;
+
+ AHASH_DBG(hace_dev, "%s:0x%x, %s:0x%x, %s:0x%x, %s:0x%x\n",
+ "rctx total", rctx->total, "bufcnt", rctx->bufcnt,
+ "length", length, "remain", remain);
+
+ sg_len = dma_map_sg(hace_dev->dev, rctx->src_sg, rctx->src_nents,
+ DMA_TO_DEVICE);
+ if (!sg_len) {
+ dev_warn(hace_dev->dev, "dma_map_sg() src error\n");
+ rc = -ENOMEM;
+ goto end;
+ }
+
+ src_list = (struct aspeed_sg_list *)hash_engine->ahash_src_addr;
+ rctx->digest_dma_addr = dma_map_single(hace_dev->dev, rctx->digest,
+ SHA512_DIGEST_SIZE,
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(hace_dev->dev, rctx->digest_dma_addr)) {
+ dev_warn(hace_dev->dev, "dma_map() rctx digest error\n");
+ rc = -ENOMEM;
+ goto free_src_sg;
+ }
+
+ if (rctx->bufcnt != 0) {
+ rctx->buffer_dma_addr = dma_map_single(hace_dev->dev,
+ rctx->buffer,
+ rctx->block_size * 2,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(hace_dev->dev, rctx->buffer_dma_addr)) {
+ dev_warn(hace_dev->dev, "dma_map() rctx buffer error\n");
+ rc = -ENOMEM;
+ goto free_rctx_digest;
+ }
+
+ src_list[0].phy_addr = rctx->buffer_dma_addr;
+ src_list[0].len = rctx->bufcnt;
+ length -= src_list[0].len;
+
+ /* Last sg list */
+ if (length == 0)
+ src_list[0].len |= HASH_SG_LAST_LIST;
+
+ src_list[0].phy_addr = cpu_to_le32(src_list[0].phy_addr);
+ src_list[0].len = cpu_to_le32(src_list[0].len);
+ src_list++;
+ }
+
+ if (length != 0) {
+ for_each_sg(rctx->src_sg, s, sg_len, i) {
+ src_list[i].phy_addr = sg_dma_address(s);
+
+ if (length > sg_dma_len(s)) {
+ src_list[i].len = sg_dma_len(s);
+ length -= sg_dma_len(s);
+
+ } else {
+ /* Last sg list */
+ src_list[i].len = length;
+ src_list[i].len |= HASH_SG_LAST_LIST;
+ length = 0;
+ }
+
+ src_list[i].phy_addr = cpu_to_le32(src_list[i].phy_addr);
+ src_list[i].len = cpu_to_le32(src_list[i].len);
+ }
+ }
+
+ if (length != 0) {
+ rc = -EINVAL;
+ goto free_rctx_buffer;
+ }
+
+ rctx->offset = rctx->total - remain;
+ hash_engine->src_length = rctx->total + rctx->bufcnt - remain;
+ hash_engine->src_dma = hash_engine->ahash_src_dma_addr;
+ hash_engine->digest_dma = rctx->digest_dma_addr;
+
+ goto end;
+
+free_rctx_buffer:
+ if (rctx->bufcnt != 0)
+ dma_unmap_single(hace_dev->dev, rctx->buffer_dma_addr,
+ rctx->block_size * 2, DMA_TO_DEVICE);
+free_rctx_digest:
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+free_src_sg:
+ dma_unmap_sg(hace_dev->dev, rctx->src_sg, rctx->src_nents,
+ DMA_TO_DEVICE);
+end:
+ return rc;
+}
+
+static int aspeed_ahash_complete(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+
+ AHASH_DBG(hace_dev, "\n");
+
+ hash_engine->flags &= ~CRYPTO_FLAGS_BUSY;
+
+ crypto_finalize_hash_request(hace_dev->crypt_engine_hash, req, 0);
+
+ return 0;
+}
+
+/*
+ * Copy digest to the corresponding request result.
+ * This function will be called at final() stage.
+ */
+static int aspeed_ahash_transfer(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+
+ AHASH_DBG(hace_dev, "\n");
+
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+
+ dma_unmap_single(hace_dev->dev, rctx->buffer_dma_addr,
+ rctx->block_size * 2, DMA_TO_DEVICE);
+
+ memcpy(req->result, rctx->digest, rctx->digsize);
+
+ return aspeed_ahash_complete(hace_dev);
+}
+
+/*
+ * Trigger hardware engines to do the math.
+ */
+static int aspeed_hace_ahash_trigger(struct aspeed_hace_dev *hace_dev,
+ aspeed_hace_fn_t resume)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+
+ AHASH_DBG(hace_dev, "src_dma:0x%x, digest_dma:0x%x, length:0x%x\n",
+ hash_engine->src_dma, hash_engine->digest_dma,
+ hash_engine->src_length);
+
+ rctx->cmd |= HASH_CMD_INT_ENABLE;
+ hash_engine->resume = resume;
+
+ ast_hace_write(hace_dev, hash_engine->src_dma, ASPEED_HACE_HASH_SRC);
+ ast_hace_write(hace_dev, hash_engine->digest_dma,
+ ASPEED_HACE_HASH_DIGEST_BUFF);
+ ast_hace_write(hace_dev, hash_engine->digest_dma,
+ ASPEED_HACE_HASH_KEY_BUFF);
+ ast_hace_write(hace_dev, hash_engine->src_length,
+ ASPEED_HACE_HASH_DATA_LEN);
+
+ /* Memory barrier to ensure all data setup before engine starts */
+ mb();
+
+ ast_hace_write(hace_dev, rctx->cmd, ASPEED_HACE_HASH_CMD);
+
+ return -EINPROGRESS;
+}
+
+/*
+ * HMAC resume aims to do the second pass produces
+ * the final HMAC code derived from the inner hash
+ * result and the outer key.
+ */
+static int aspeed_ahash_hmac_resume(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_sha_hmac_ctx *bctx = tctx->base;
+ int rc = 0;
+
+ AHASH_DBG(hace_dev, "\n");
+
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+
+ dma_unmap_single(hace_dev->dev, rctx->buffer_dma_addr,
+ rctx->block_size * 2, DMA_TO_DEVICE);
+
+ /* o key pad + hash sum 1 */
+ memcpy(rctx->buffer, bctx->opad, rctx->block_size);
+ memcpy(rctx->buffer + rctx->block_size, rctx->digest, rctx->digsize);
+
+ rctx->bufcnt = rctx->block_size + rctx->digsize;
+ rctx->digcnt[0] = rctx->block_size + rctx->digsize;
+
+ aspeed_ahash_fill_padding(hace_dev, rctx);
+ aspeed_ahash_iV(rctx);
+
+ rctx->digest_dma_addr = dma_map_single(hace_dev->dev, rctx->digest,
+ SHA512_DIGEST_SIZE,
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(hace_dev->dev, rctx->digest_dma_addr)) {
+ dev_warn(hace_dev->dev, "dma_map() rctx digest error\n");
+ rc = -ENOMEM;
+ goto end;
+ }
+
+ rctx->buffer_dma_addr = dma_map_single(hace_dev->dev, rctx->buffer,
+ rctx->block_size * 2,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(hace_dev->dev, rctx->buffer_dma_addr)) {
+ dev_warn(hace_dev->dev, "dma_map() rctx buffer error\n");
+ rc = -ENOMEM;
+ goto free_rctx_digest;
+ }
+
+ hash_engine->src_dma = rctx->buffer_dma_addr;
+ hash_engine->src_length = rctx->bufcnt;
+ hash_engine->digest_dma = rctx->digest_dma_addr;
+
+ return aspeed_hace_ahash_trigger(hace_dev, aspeed_ahash_transfer);
+
+free_rctx_digest:
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+end:
+ return rc;
+}
+
+static int aspeed_ahash_req_final(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ int rc = 0;
+
+ AHASH_DBG(hace_dev, "\n");
+
+ aspeed_ahash_fill_padding(hace_dev, rctx);
+
+ rctx->digest_dma_addr = dma_map_single(hace_dev->dev,
+ rctx->digest,
+ SHA512_DIGEST_SIZE,
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(hace_dev->dev, rctx->digest_dma_addr)) {
+ dev_warn(hace_dev->dev, "dma_map() rctx digest error\n");
+ rc = -ENOMEM;
+ goto end;
+ }
+
+ rctx->buffer_dma_addr = dma_map_single(hace_dev->dev,
+ rctx->buffer,
+ rctx->block_size * 2,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(hace_dev->dev, rctx->buffer_dma_addr)) {
+ dev_warn(hace_dev->dev, "dma_map() rctx buffer error\n");
+ rc = -ENOMEM;
+ goto free_rctx_digest;
+ }
+
+ hash_engine->src_dma = rctx->buffer_dma_addr;
+ hash_engine->src_length = rctx->bufcnt;
+ hash_engine->digest_dma = rctx->digest_dma_addr;
+
+ if (rctx->flags & SHA_FLAGS_HMAC)
+ return aspeed_hace_ahash_trigger(hace_dev,
+ aspeed_ahash_hmac_resume);
+
+ return aspeed_hace_ahash_trigger(hace_dev, aspeed_ahash_transfer);
+
+free_rctx_digest:
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+end:
+ return rc;
+}
+
+static int aspeed_ahash_update_resume_sg(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+
+ AHASH_DBG(hace_dev, "\n");
+
+ dma_unmap_sg(hace_dev->dev, rctx->src_sg, rctx->src_nents,
+ DMA_TO_DEVICE);
+
+ if (rctx->bufcnt != 0)
+ dma_unmap_single(hace_dev->dev, rctx->buffer_dma_addr,
+ rctx->block_size * 2,
+ DMA_TO_DEVICE);
+
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+
+ scatterwalk_map_and_copy(rctx->buffer, rctx->src_sg, rctx->offset,
+ rctx->total - rctx->offset, 0);
+
+ rctx->bufcnt = rctx->total - rctx->offset;
+ rctx->cmd &= ~HASH_CMD_HASH_SRC_SG_CTRL;
+
+ if (rctx->flags & SHA_FLAGS_FINUP)
+ return aspeed_ahash_req_final(hace_dev);
+
+ return aspeed_ahash_complete(hace_dev);
+}
+
+static int aspeed_ahash_update_resume(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+
+ AHASH_DBG(hace_dev, "\n");
+
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+
+ if (rctx->flags & SHA_FLAGS_FINUP)
+ return aspeed_ahash_req_final(hace_dev);
+
+ return aspeed_ahash_complete(hace_dev);
+}
+
+static int aspeed_ahash_req_update(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct ahash_request *req = hash_engine->req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ aspeed_hace_fn_t resume;
+
+ AHASH_DBG(hace_dev, "\n");
+
+ if (hace_dev->version == AST2600_VERSION) {
+ rctx->cmd |= HASH_CMD_HASH_SRC_SG_CTRL;
+ resume = aspeed_ahash_update_resume_sg;
+
+ } else {
+ resume = aspeed_ahash_update_resume;
+ }
+
+ hash_engine->dma_prepare(hace_dev);
+
+ return aspeed_hace_ahash_trigger(hace_dev, resume);
+}
+
+static int aspeed_hace_hash_handle_queue(struct aspeed_hace_dev *hace_dev,
+ struct ahash_request *req)
+{
+ return crypto_transfer_hash_request_to_engine(
+ hace_dev->crypt_engine_hash, req);
+}
+
+static int aspeed_ahash_do_request(struct crypto_engine *engine, void *areq)
+{
+ struct ahash_request *req = ahash_request_cast(areq);
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+ struct aspeed_engine_hash *hash_engine;
+ int ret = 0;
+
+ hash_engine = &hace_dev->hash_engine;
+ hash_engine->flags |= CRYPTO_FLAGS_BUSY;
+
+ if (rctx->op == SHA_OP_UPDATE)
+ ret = aspeed_ahash_req_update(hace_dev);
+ else if (rctx->op == SHA_OP_FINAL)
+ ret = aspeed_ahash_req_final(hace_dev);
+
+ if (ret != -EINPROGRESS)
+ return -EIO;
+
+ return 0;
+}
+
+static int aspeed_ahash_prepare_request(struct crypto_engine *engine,
+ void *areq)
+{
+ struct ahash_request *req = ahash_request_cast(areq);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+ struct aspeed_engine_hash *hash_engine;
+
+ hash_engine = &hace_dev->hash_engine;
+ hash_engine->req = req;
+
+ if (hace_dev->version == AST2600_VERSION)
+ hash_engine->dma_prepare = aspeed_ahash_dma_prepare_sg;
+ else
+ hash_engine->dma_prepare = aspeed_ahash_dma_prepare;
+
+ return 0;
+}
+
+static int aspeed_sham_update(struct ahash_request *req)
+{
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+
+ AHASH_DBG(hace_dev, "req->nbytes: %d\n", req->nbytes);
+
+ rctx->total = req->nbytes;
+ rctx->src_sg = req->src;
+ rctx->offset = 0;
+ rctx->src_nents = sg_nents(req->src);
+ rctx->op = SHA_OP_UPDATE;
+
+ rctx->digcnt[0] += rctx->total;
+ if (rctx->digcnt[0] < rctx->total)
+ rctx->digcnt[1]++;
+
+ if (rctx->bufcnt + rctx->total < rctx->block_size) {
+ scatterwalk_map_and_copy(rctx->buffer + rctx->bufcnt,
+ rctx->src_sg, rctx->offset,
+ rctx->total, 0);
+ rctx->bufcnt += rctx->total;
+
+ return 0;
+ }
+
+ return aspeed_hace_hash_handle_queue(hace_dev, req);
+}
+
+static int aspeed_sham_shash_digest(struct crypto_shash *tfm, u32 flags,
+ const u8 *data, unsigned int len, u8 *out)
+{
+ SHASH_DESC_ON_STACK(shash, tfm);
+
+ shash->tfm = tfm;
+
+ return crypto_shash_digest(shash, data, len, out);
+}
+
+static int aspeed_sham_final(struct ahash_request *req)
+{
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+
+ AHASH_DBG(hace_dev, "req->nbytes:%d, rctx->total:%d\n",
+ req->nbytes, rctx->total);
+ rctx->op = SHA_OP_FINAL;
+
+ return aspeed_hace_hash_handle_queue(hace_dev, req);
+}
+
+static int aspeed_sham_finup(struct ahash_request *req)
+{
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+ int rc1, rc2;
+
+ AHASH_DBG(hace_dev, "req->nbytes: %d\n", req->nbytes);
+
+ rctx->flags |= SHA_FLAGS_FINUP;
+
+ rc1 = aspeed_sham_update(req);
+ if (rc1 == -EINPROGRESS || rc1 == -EBUSY)
+ return rc1;
+
+ /*
+ * final() has to be always called to cleanup resources
+ * even if update() failed, except EINPROGRESS
+ */
+ rc2 = aspeed_sham_final(req);
+
+ return rc1 ? : rc2;
+}
+
+static int aspeed_sham_init(struct ahash_request *req)
+{
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+ struct aspeed_sha_hmac_ctx *bctx = tctx->base;
+
+ AHASH_DBG(hace_dev, "%s: digest size:%d\n",
+ crypto_tfm_alg_name(&tfm->base),
+ crypto_ahash_digestsize(tfm));
+
+ rctx->cmd = HASH_CMD_ACC_MODE;
+ rctx->flags = 0;
+
+ switch (crypto_ahash_digestsize(tfm)) {
+ case SHA1_DIGEST_SIZE:
+ rctx->cmd |= HASH_CMD_SHA1 | HASH_CMD_SHA_SWAP;
+ rctx->flags |= SHA_FLAGS_SHA1;
+ rctx->digsize = SHA1_DIGEST_SIZE;
+ rctx->block_size = SHA1_BLOCK_SIZE;
+ memcpy(rctx->digest, sha1_iv, 32);
+ break;
+ case SHA224_DIGEST_SIZE:
+ rctx->cmd |= HASH_CMD_SHA224 | HASH_CMD_SHA_SWAP;
+ rctx->flags |= SHA_FLAGS_SHA224;
+ rctx->digsize = SHA224_DIGEST_SIZE;
+ rctx->block_size = SHA224_BLOCK_SIZE;
+ memcpy(rctx->digest, sha224_iv, 32);
+ break;
+ case SHA256_DIGEST_SIZE:
+ rctx->cmd |= HASH_CMD_SHA256 | HASH_CMD_SHA_SWAP;
+ rctx->flags |= SHA_FLAGS_SHA256;
+ rctx->digsize = SHA256_DIGEST_SIZE;
+ rctx->block_size = SHA256_BLOCK_SIZE;
+ memcpy(rctx->digest, sha256_iv, 32);
+ break;
+ case SHA384_DIGEST_SIZE:
+ rctx->cmd |= HASH_CMD_SHA512_SER | HASH_CMD_SHA384 |
+ HASH_CMD_SHA_SWAP;
+ rctx->flags |= SHA_FLAGS_SHA384;
+ rctx->digsize = SHA384_DIGEST_SIZE;
+ rctx->block_size = SHA384_BLOCK_SIZE;
+ memcpy(rctx->digest, sha384_iv, 64);
+ break;
+ case SHA512_DIGEST_SIZE:
+ rctx->cmd |= HASH_CMD_SHA512_SER | HASH_CMD_SHA512 |
+ HASH_CMD_SHA_SWAP;
+ rctx->flags |= SHA_FLAGS_SHA512;
+ rctx->digsize = SHA512_DIGEST_SIZE;
+ rctx->block_size = SHA512_BLOCK_SIZE;
+ memcpy(rctx->digest, sha512_iv, 64);
+ break;
+ default:
+ dev_warn(tctx->hace_dev->dev, "digest size %d not support\n",
+ crypto_ahash_digestsize(tfm));
+ return -EINVAL;
+ }
+
+ rctx->bufcnt = 0;
+ rctx->total = 0;
+ rctx->digcnt[0] = 0;
+ rctx->digcnt[1] = 0;
+
+ /* HMAC init */
+ if (tctx->flags & SHA_FLAGS_HMAC) {
+ rctx->digcnt[0] = rctx->block_size;
+ rctx->bufcnt = rctx->block_size;
+ memcpy(rctx->buffer, bctx->ipad, rctx->block_size);
+ rctx->flags |= SHA_FLAGS_HMAC;
+ }
+
+ return 0;
+}
+
+static int aspeed_sha512s_init(struct ahash_request *req)
+{
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+ struct aspeed_sha_hmac_ctx *bctx = tctx->base;
+
+ AHASH_DBG(hace_dev, "digest size: %d\n", crypto_ahash_digestsize(tfm));
+
+ rctx->cmd = HASH_CMD_ACC_MODE;
+ rctx->flags = 0;
+
+ switch (crypto_ahash_digestsize(tfm)) {
+ case SHA224_DIGEST_SIZE:
+ rctx->cmd |= HASH_CMD_SHA512_SER | HASH_CMD_SHA512_224 |
+ HASH_CMD_SHA_SWAP;
+ rctx->flags |= SHA_FLAGS_SHA512_224;
+ rctx->digsize = SHA224_DIGEST_SIZE;
+ rctx->block_size = SHA512_BLOCK_SIZE;
+ memcpy(rctx->digest, sha512_224_iv, SHA224_BLOCK_SIZE);
+ break;
+ case SHA256_DIGEST_SIZE:
+ rctx->cmd |= HASH_CMD_SHA512_SER | HASH_CMD_SHA512_256 |
+ HASH_CMD_SHA_SWAP;
+ rctx->flags |= SHA_FLAGS_SHA512_256;
+ rctx->digsize = SHA256_DIGEST_SIZE;
+ rctx->block_size = SHA512_BLOCK_SIZE;
+ memcpy(rctx->digest, sha512_256_iv, SHA256_BLOCK_SIZE);
+ break;
+ default:
+ dev_warn(tctx->hace_dev->dev, "digest size %d not support\n",
+ crypto_ahash_digestsize(tfm));
+ return -EINVAL;
+ }
+
+ rctx->bufcnt = 0;
+ rctx->total = 0;
+ rctx->digcnt[0] = 0;
+ rctx->digcnt[1] = 0;
+
+ /* HMAC init */
+ if (tctx->flags & SHA_FLAGS_HMAC) {
+ rctx->digcnt[0] = rctx->block_size;
+ rctx->bufcnt = rctx->block_size;
+ memcpy(rctx->buffer, bctx->ipad, rctx->block_size);
+ rctx->flags |= SHA_FLAGS_HMAC;
+ }
+
+ return 0;
+}
+
+static int aspeed_sham_digest(struct ahash_request *req)
+{
+ return aspeed_sham_init(req) ? : aspeed_sham_finup(req);
+}
+
+static int aspeed_sham_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct aspeed_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+ struct aspeed_sha_hmac_ctx *bctx = tctx->base;
+ int ds = crypto_shash_digestsize(bctx->shash);
+ int bs = crypto_shash_blocksize(bctx->shash);
+ int err = 0;
+ int i;
+
+ AHASH_DBG(hace_dev, "%s: keylen:%d\n", crypto_tfm_alg_name(&tfm->base),
+ keylen);
+
+ if (keylen > bs) {
+ err = aspeed_sham_shash_digest(bctx->shash,
+ crypto_shash_get_flags(bctx->shash),
+ key, keylen, bctx->ipad);
+ if (err)
+ return err;
+ keylen = ds;
+
+ } else {
+ memcpy(bctx->ipad, key, keylen);
+ }
+
+ memset(bctx->ipad + keylen, 0, bs - keylen);
+ memcpy(bctx->opad, bctx->ipad, bs);
+
+ for (i = 0; i < bs; i++) {
+ bctx->ipad[i] ^= HMAC_IPAD_VALUE;
+ bctx->opad[i] ^= HMAC_OPAD_VALUE;
+ }
+
+ return err;
+}
+
+static int aspeed_sham_cra_init_alg(struct crypto_tfm *tfm,
+ const char *alg_base)
+{
+ struct ahash_alg *alg = __crypto_ahash_alg(tfm->__crt_alg);
+ struct aspeed_sham_ctx *tctx = crypto_tfm_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+ struct aspeed_hace_alg *ast_alg;
+
+ ast_alg = container_of(alg, struct aspeed_hace_alg, alg.ahash);
+ tctx->hace_dev = ast_alg->hace_dev;
+ tctx->flags = 0;
+
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct aspeed_sham_reqctx));
+
+ if (alg_base) {
+ struct aspeed_sha_hmac_ctx *bctx = tctx->base;
+
+ tctx->flags |= SHA_FLAGS_HMAC;
+ bctx->shash = crypto_alloc_shash(alg_base, 0,
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(bctx->shash)) {
+ dev_warn(hace_dev->dev,
+ "base driver '%s' could not be loaded.\n",
+ alg_base);
+ return PTR_ERR(bctx->shash);
+ }
+ }
+
+ tctx->enginectx.op.do_one_request = aspeed_ahash_do_request;
+ tctx->enginectx.op.prepare_request = aspeed_ahash_prepare_request;
+ tctx->enginectx.op.unprepare_request = NULL;
+
+ return 0;
+}
+
+static int aspeed_sham_cra_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, NULL);
+}
+
+static int aspeed_sham_cra_sha1_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, "sha1");
+}
+
+static int aspeed_sham_cra_sha224_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, "sha224");
+}
+
+static int aspeed_sham_cra_sha256_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, "sha256");
+}
+
+static int aspeed_sham_cra_sha384_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, "sha384");
+}
+
+static int aspeed_sham_cra_sha512_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, "sha512");
+}
+
+static int aspeed_sham_cra_sha512_224_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, "sha512_224");
+}
+
+static int aspeed_sham_cra_sha512_256_init(struct crypto_tfm *tfm)
+{
+ return aspeed_sham_cra_init_alg(tfm, "sha512_256");
+}
+
+static void aspeed_sham_cra_exit(struct crypto_tfm *tfm)
+{
+ struct aspeed_sham_ctx *tctx = crypto_tfm_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = tctx->hace_dev;
+
+ AHASH_DBG(hace_dev, "%s\n", crypto_tfm_alg_name(tfm));
+
+ if (tctx->flags & SHA_FLAGS_HMAC) {
+ struct aspeed_sha_hmac_ctx *bctx = tctx->base;
+
+ crypto_free_shash(bctx->shash);
+ }
+}
+
+static int aspeed_sham_export(struct ahash_request *req, void *out)
+{
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+
+ memcpy(out, rctx, sizeof(*rctx));
+
+ return 0;
+}
+
+static int aspeed_sham_import(struct ahash_request *req, const void *in)
+{
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+
+ memcpy(rctx, in, sizeof(*rctx));
+
+ return 0;
+}
+
+struct aspeed_hace_alg aspeed_ahash_algs[] = {
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name = "aspeed-sha1",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "aspeed-sha256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "sha224",
+ .cra_driver_name = "aspeed-sha224",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .setkey = aspeed_sham_setkey,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "hmac(sha1)",
+ .cra_driver_name = "aspeed-hmac-sha1",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx) +
+ sizeof(struct aspeed_sha_hmac_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_sha1_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .setkey = aspeed_sham_setkey,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "hmac(sha224)",
+ .cra_driver_name = "aspeed-hmac-sha224",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx) +
+ sizeof(struct aspeed_sha_hmac_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_sha224_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .setkey = aspeed_sham_setkey,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "hmac(sha256)",
+ .cra_driver_name = "aspeed-hmac-sha256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx) +
+ sizeof(struct aspeed_sha_hmac_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_sha256_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+};
+
+struct aspeed_hace_alg aspeed_ahash_algs_g6[] = {
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "sha384",
+ .cra_driver_name = "aspeed-sha384",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "sha512",
+ .cra_driver_name = "aspeed-sha512",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sha512s_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "sha512_224",
+ .cra_driver_name = "aspeed-sha512_224",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sha512s_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "sha512_256",
+ .cra_driver_name = "aspeed-sha512_256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .setkey = aspeed_sham_setkey,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "hmac(sha384)",
+ .cra_driver_name = "aspeed-hmac-sha384",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx) +
+ sizeof(struct aspeed_sha_hmac_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_sha384_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sham_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .setkey = aspeed_sham_setkey,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "hmac(sha512)",
+ .cra_driver_name = "aspeed-hmac-sha512",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx) +
+ sizeof(struct aspeed_sha_hmac_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_sha512_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sha512s_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .setkey = aspeed_sham_setkey,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "hmac(sha512_224)",
+ .cra_driver_name = "aspeed-hmac-sha512_224",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx) +
+ sizeof(struct aspeed_sha_hmac_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_sha512_224_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+ {
+ .alg.ahash = {
+ .init = aspeed_sha512s_init,
+ .update = aspeed_sham_update,
+ .final = aspeed_sham_final,
+ .finup = aspeed_sham_finup,
+ .digest = aspeed_sham_digest,
+ .setkey = aspeed_sham_setkey,
+ .export = aspeed_sham_export,
+ .import = aspeed_sham_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct aspeed_sham_reqctx),
+ .base = {
+ .cra_name = "hmac(sha512_256)",
+ .cra_driver_name = "aspeed-hmac-sha512_256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_sham_ctx) +
+ sizeof(struct aspeed_sha_hmac_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = aspeed_sham_cra_sha512_256_init,
+ .cra_exit = aspeed_sham_cra_exit,
+ }
+ }
+ },
+ },
+};
+
+void aspeed_unregister_hace_hash_algs(struct aspeed_hace_dev *hace_dev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(aspeed_ahash_algs); i++)
+ crypto_unregister_ahash(&aspeed_ahash_algs[i].alg.ahash);
+
+ if (hace_dev->version != AST2600_VERSION)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(aspeed_ahash_algs_g6); i++)
+ crypto_unregister_ahash(&aspeed_ahash_algs_g6[i].alg.ahash);
+}
+
+void aspeed_register_hace_hash_algs(struct aspeed_hace_dev *hace_dev)
+{
+ int rc, i;
+
+ AHASH_DBG(hace_dev, "\n");
+
+ for (i = 0; i < ARRAY_SIZE(aspeed_ahash_algs); i++) {
+ aspeed_ahash_algs[i].hace_dev = hace_dev;
+ rc = crypto_register_ahash(&aspeed_ahash_algs[i].alg.ahash);
+ if (rc) {
+ AHASH_DBG(hace_dev, "Failed to register %s\n",
+ aspeed_ahash_algs[i].alg.ahash.halg.cra_name);
+ }
+ }
+
+ if (hace_dev->version != AST2600_VERSION)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(aspeed_ahash_algs_g6); i++) {
+ aspeed_ahash_algs_g6[i].hace_dev = hace_dev;
+ rc = crypto_register_ahash(&aspeed_ahash_algs_g6[i].alg.ahash);
+ if (rc) {
+ AHASH_DBG(hace_dev, "Failed to register %s\n",
+ aspeed_ahash_algs_g6[i].alg.ahash.halg.cra_name);
+ }
+ }
+}
diff --git a/drivers/crypto/aspeed/aspeed-hace.c b/drivers/crypto/aspeed/aspeed-hace.c
new file mode 100644
index 000000000000..35b6017b3032
--- /dev/null
+++ b/drivers/crypto/aspeed/aspeed-hace.c
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Aspeed Technology Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+
+#include "aspeed-hace.h"
+
+#ifdef ASPEED_HACE_DEBUG
+#define HACE_DBG(d, fmt, ...) \
+ dev_dbg((d)->dev, "%s() " fmt, __func__, ##__VA_ARGS__)
+#else
+#define HACE_DBG(d, fmt, ...)
+#endif
+
+/* Weak function for HACE hash */
+void __weak aspeed_register_hace_hash_algs(struct aspeed_hace_dev *hace_dev)
+{
+ pr_warn("%s: Not supported yet\n", __func__);
+}
+
+void __weak aspeed_unregister_hace_hash_algs(struct aspeed_hace_dev *hace_dev)
+{
+ pr_warn("%s: Not supported yet\n", __func__);
+}
+
+/* HACE interrupt service routine */
+static irqreturn_t aspeed_hace_irq(int irq, void *dev)
+{
+ struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)dev;
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ u32 sts;
+
+ HACE_DBG("irq status: 0x%x\n", sts);
+
+ sts = ast_hace_read(hace_dev, ASPEED_HACE_STS);
+ ast_hace_write(hace_dev, sts, ASPEED_HACE_STS);
+
+ if (sts & HACE_HASH_ISR) {
+ if (hash_engine->flags & CRYPTO_FLAGS_BUSY)
+ tasklet_schedule(&hash_engine->done_task);
+ else
+ dev_warn(hace_dev->dev, "HASH no active requests.\n");
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void aspeed_hace_hash_done_task(unsigned long data)
+{
+ struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)data;
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+
+ hash_engine->resume(hace_dev);
+}
+
+static void aspeed_hace_register(struct aspeed_hace_dev *hace_dev)
+{
+ aspeed_register_hace_hash_algs(hace_dev);
+}
+
+static void aspeed_hace_unregister(struct aspeed_hace_dev *hace_dev)
+{
+ aspeed_unregister_hace_hash_algs(hace_dev);
+}
+
+static const struct of_device_id aspeed_hace_of_matches[] = {
+ { .compatible = "aspeed,ast2500-hace", .data = (void *)5, },
+ { .compatible = "aspeed,ast2600-hace", .data = (void *)6, },
+ {},
+};
+
+static int aspeed_hace_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *hace_dev_id;
+ struct aspeed_engine_hash *hash_engine;
+ struct aspeed_hace_dev *hace_dev;
+ struct resource *res;
+ int rc;
+
+ hace_dev = devm_kzalloc(&pdev->dev, sizeof(struct aspeed_hace_dev),
+ GFP_KERNEL);
+ if (!hace_dev)
+ return -ENOMEM;
+
+ hace_dev_id = of_match_device(aspeed_hace_of_matches, &pdev->dev);
+ if (!hace_dev_id) {
+ dev_err(&pdev->dev, "Failed to match hace dev id\n");
+ return -EINVAL;
+ }
+
+ hace_dev->dev = &pdev->dev;
+ hace_dev->version = (unsigned long)hace_dev_id->data;
+ hash_engine = &hace_dev->hash_engine;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ platform_set_drvdata(pdev, hace_dev);
+
+ /* Initialize crypto hardware engine structure for hash */
+ hace_dev->crypt_engine_hash = crypto_engine_alloc_init(hace_dev->dev,
+ true);
+
+ rc = crypto_engine_start(hace_dev->crypt_engine_hash);
+ if (rc)
+ goto err_engine_hash_start;
+
+ tasklet_init(&hash_engine->done_task, aspeed_hace_hash_done_task,
+ (unsigned long)hace_dev);
+
+ hace_dev->regs = devm_ioremap_resource(&pdev->dev, res);
+ if (!hace_dev->regs) {
+ dev_err(&pdev->dev, "Failed to map resources\n");
+ return -ENOMEM;
+ }
+
+ /* Get irq number and register it */
+ hace_dev->irq = platform_get_irq(pdev, 0);
+ if (!hace_dev->irq) {
+ dev_err(&pdev->dev, "Failed to get interrupt\n");
+ return -ENXIO;
+ }
+
+ rc = devm_request_irq(&pdev->dev, hace_dev->irq, aspeed_hace_irq, 0,
+ dev_name(&pdev->dev), hace_dev);
+ if (rc) {
+ dev_err(&pdev->dev, "Failed to request interrupt\n");
+ return rc;
+ }
+
+ /* Get clk and enable it */
+ hace_dev->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(hace_dev->clk)) {
+ dev_err(&pdev->dev, "Failed to get clk\n");
+ return -ENODEV;
+ }
+
+ rc = clk_prepare_enable(hace_dev->clk);
+ if (rc) {
+ dev_err(&pdev->dev, "Failed to enable clock 0x%x\n", rc);
+ return rc;
+ }
+
+ /* Allocate DMA buffer for hash engine input used */
+ hash_engine->ahash_src_addr =
+ dma_alloc_coherent(&pdev->dev,
+ ASPEED_HASH_SRC_DMA_BUF_LEN,
+ &hash_engine->ahash_src_dma_addr,
+ GFP_KERNEL);
+ if (!hash_engine->ahash_src_addr) {
+ dev_err(&pdev->dev, "Failed to allocate dma buffer\n");
+ rc = -ENOMEM;
+ goto clk_exit;
+ }
+
+ aspeed_hace_register(hace_dev);
+
+ dev_info(&pdev->dev, "ASPEED Crypto Accelerator successfully registered\n");
+
+ return rc;
+
+clk_exit:
+ clk_disable_unprepare(hace_dev->clk);
+err_engine_hash_start:
+ crypto_engine_exit(hace_dev->crypt_engine_hash);
+
+ return rc;
+}
+
+static int aspeed_hace_remove(struct platform_device *pdev)
+{
+ struct aspeed_hace_dev *hace_dev = platform_get_drvdata(pdev);
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+
+ aspeed_hace_unregister(hace_dev);
+
+ crypto_engine_exit(hace_dev->crypt_engine_hash);
+
+ tasklet_kill(&hash_engine->done_task);
+
+ dma_free_coherent(&pdev->dev, ASPEED_HASH_SRC_DMA_BUF_LEN,
+ hash_engine->ahash_src_addr,
+ hash_engine->ahash_src_dma_addr);
+
+ clk_disable_unprepare(hace_dev->clk);
+
+ return 0;
+}
+
+MODULE_DEVICE_TABLE(of, aspeed_hace_of_matches);
+
+static struct platform_driver aspeed_hace_driver = {
+ .probe = aspeed_hace_probe,
+ .remove = aspeed_hace_remove,
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .of_match_table = aspeed_hace_of_matches,
+ },
+};
+
+module_platform_driver(aspeed_hace_driver);
+
+MODULE_AUTHOR("Neal Liu <neal_liu@aspeedtech.com>");
+MODULE_DESCRIPTION("ASPEED HACE driver Crypto Accelerator");
+MODULE_LICENSE("GPL");
diff --git a/drivers/crypto/aspeed/aspeed-hace.h b/drivers/crypto/aspeed/aspeed-hace.h
new file mode 100644
index 000000000000..a9aa1e1d90fe
--- /dev/null
+++ b/drivers/crypto/aspeed/aspeed-hace.h
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef __ASPEED_HACE_H__
+#define __ASPEED_HACE_H__
+
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/fips.h>
+#include <linux/dma-mapping.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/internal/aead.h>
+#include <crypto/internal/akcipher.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/kpp.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/algapi.h>
+#include <crypto/engine.h>
+#include <crypto/hmac.h>
+#include <crypto/sha1.h>
+#include <crypto/sha2.h>
+
+/*****************************
+ * *
+ * HACE register definitions *
+ * *
+ * ***************************/
+
+#define ASPEED_HACE_STS 0x1C /* HACE Status Register */
+#define ASPEED_HACE_HASH_SRC 0x20 /* Hash Data Source Base Address Register */
+#define ASPEED_HACE_HASH_DIGEST_BUFF 0x24 /* Hash Digest Write Buffer Base Address Register */
+#define ASPEED_HACE_HASH_KEY_BUFF 0x28 /* Hash HMAC Key Buffer Base Address Register */
+#define ASPEED_HACE_HASH_DATA_LEN 0x2C /* Hash Data Length Register */
+#define ASPEED_HACE_HASH_CMD 0x30 /* Hash Engine Command Register */
+
+/* interrupt status reg */
+#define HACE_HASH_ISR BIT(9)
+#define HACE_HASH_BUSY BIT(0)
+
+/* hash cmd reg */
+#define HASH_CMD_MBUS_REQ_SYNC_EN BIT(20)
+#define HASH_CMD_HASH_SRC_SG_CTRL BIT(18)
+#define HASH_CMD_SHA512_224 (0x3 << 10)
+#define HASH_CMD_SHA512_256 (0x2 << 10)
+#define HASH_CMD_SHA384 (0x1 << 10)
+#define HASH_CMD_SHA512 (0)
+#define HASH_CMD_INT_ENABLE BIT(9)
+#define HASH_CMD_HMAC (0x1 << 7)
+#define HASH_CMD_ACC_MODE (0x2 << 7)
+#define HASH_CMD_HMAC_KEY (0x3 << 7)
+#define HASH_CMD_SHA1 (0x2 << 4)
+#define HASH_CMD_SHA224 (0x4 << 4)
+#define HASH_CMD_SHA256 (0x5 << 4)
+#define HASH_CMD_SHA512_SER (0x6 << 4)
+#define HASH_CMD_SHA_SWAP (0x2 << 2)
+
+#define HASH_SG_LAST_LIST BIT(31)
+
+#define CRYPTO_FLAGS_BUSY BIT(1)
+
+#define SHA_OP_UPDATE 1
+#define SHA_OP_FINAL 2
+
+#define SHA_FLAGS_SHA1 BIT(0)
+#define SHA_FLAGS_SHA224 BIT(1)
+#define SHA_FLAGS_SHA256 BIT(2)
+#define SHA_FLAGS_SHA384 BIT(3)
+#define SHA_FLAGS_SHA512 BIT(4)
+#define SHA_FLAGS_SHA512_224 BIT(5)
+#define SHA_FLAGS_SHA512_256 BIT(6)
+#define SHA_FLAGS_HMAC BIT(8)
+#define SHA_FLAGS_FINUP BIT(9)
+#define SHA_FLAGS_MASK (0xff)
+
+#define ASPEED_CRYPTO_SRC_DMA_BUF_LEN 0xa000
+#define ASPEED_CRYPTO_DST_DMA_BUF_LEN 0xa000
+#define ASPEED_CRYPTO_GCM_TAG_OFFSET 0x9ff0
+#define ASPEED_HASH_SRC_DMA_BUF_LEN 0xa000
+#define ASPEED_HASH_QUEUE_LENGTH 50
+
+struct aspeed_hace_dev;
+
+typedef int (*aspeed_hace_fn_t)(struct aspeed_hace_dev *);
+
+struct aspeed_sg_list {
+ u32 len;
+ u32 phy_addr;
+};
+
+struct aspeed_engine_hash {
+ struct tasklet_struct done_task;
+ unsigned long flags;
+ struct ahash_request *req;
+
+ /* input buffer */
+ void *ahash_src_addr;
+ dma_addr_t ahash_src_dma_addr;
+
+ dma_addr_t src_dma;
+ dma_addr_t digest_dma;
+
+ size_t src_length;
+
+ /* callback func */
+ aspeed_hace_fn_t resume;
+ aspeed_hace_fn_t dma_prepare;
+};
+
+struct aspeed_sha_hmac_ctx {
+ struct crypto_shash *shash;
+ u8 ipad[SHA512_BLOCK_SIZE];
+ u8 opad[SHA512_BLOCK_SIZE];
+};
+
+struct aspeed_sham_ctx {
+ struct crypto_engine_ctx enginectx;
+
+ struct aspeed_hace_dev *hace_dev;
+ unsigned long flags; /* hmac flag */
+
+ struct aspeed_sha_hmac_ctx base[0];
+};
+
+struct aspeed_sham_reqctx {
+ unsigned long flags; /* final update flag should no use*/
+ unsigned long op; /* final or update */
+ u32 cmd; /* trigger cmd */
+
+ /* walk state */
+ struct scatterlist *src_sg;
+ int src_nents;
+ unsigned int offset; /* offset in current sg */
+ unsigned int total; /* per update length */
+
+ size_t digsize;
+ size_t block_size;
+
+ /* remain data buffer */
+ u8 buffer[SHA512_BLOCK_SIZE * 2];
+ dma_addr_t buffer_dma_addr;
+ size_t bufcnt; /* buffer counter */
+
+ /* output buffer */
+ u8 digest[SHA512_DIGEST_SIZE] __aligned(64);
+ dma_addr_t digest_dma_addr;
+ u64 digcnt[2];
+};
+
+struct aspeed_hace_dev {
+ void __iomem *regs;
+ struct device *dev;
+ int irq;
+ struct clk *clk;
+ unsigned long version;
+
+ struct crypto_engine *crypt_engine_hash;
+
+ struct aspeed_engine_hash hash_engine;
+};
+
+struct aspeed_hace_alg {
+ struct aspeed_hace_dev *hace_dev;
+ union {
+ struct skcipher_alg skcipher;
+ struct ahash_alg ahash;
+ } alg;
+};
+
+enum aspeed_version {
+ AST2500_VERSION = 5,
+ AST2600_VERSION
+};
+
+#define ast_hace_write(hace, val, offset) \
+ writel((val), (hace)->regs + (offset))
+#define ast_hace_read(hace, offset) \
+ readl((hace)->regs + (offset))
+
+void aspeed_register_hace_hash_algs(struct aspeed_hace_dev *hace_dev);
+void aspeed_unregister_hace_hash_algs(struct aspeed_hace_dev *hace_dev);
+
+#endif
--
2.25.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH v3 5/5] crypto: aspeed: add HACE crypto driver
2022-06-21 6:37 [PATCH v3 0/5] Add Aspeed crypto driver for hardware acceleration Neal Liu
` (3 preceding siblings ...)
2022-06-21 6:37 ` [PATCH v3 4/5] dt-bindings: crypto: add documentation for aspeed hace Neal Liu
@ 2022-06-21 6:37 ` Neal Liu
4 siblings, 0 replies; 8+ messages in thread
From: Neal Liu @ 2022-06-21 6:37 UTC (permalink / raw)
To: Corentin Labbe, Christophe JAILLET, Randy Dunlap, Herbert Xu,
David S . Miller, Rob Herring, Krzysztof Kozlowski, Joel Stanley,
Andrew Jeffery, Dhananjay Phadke, Johnny Huang
Cc: linux-aspeed, linux-crypto, devicetree, linux-arm-kernel,
linux-kernel, BMC-SW
Add HACE crypto driver to support symmetric-key
encryption and decryption with multiple modes of
operation.
Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
---
drivers/crypto/aspeed/Kconfig | 17 +
drivers/crypto/aspeed/Makefile | 2 +
drivers/crypto/aspeed/aspeed-hace-crypto.c | 1041 ++++++++++++++++++++
drivers/crypto/aspeed/aspeed-hace.c | 108 ++
drivers/crypto/aspeed/aspeed-hace.h | 108 ++
5 files changed, 1276 insertions(+)
create mode 100644 drivers/crypto/aspeed/aspeed-hace-crypto.c
diff --git a/drivers/crypto/aspeed/Kconfig b/drivers/crypto/aspeed/Kconfig
index 05cba5171c51..bf51bfa6f6ea 100644
--- a/drivers/crypto/aspeed/Kconfig
+++ b/drivers/crypto/aspeed/Kconfig
@@ -21,3 +21,20 @@ config CRYPTO_DEV_ASPEED_HACE_HASH
hash driver.
Supports multiple message digest standards, including
SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, and so on.
+
+config CRYPTO_DEV_ASPEED_HACE_CRYPTO
+ bool "Enable ASPEED Hash & Crypto Engine (HACE) crypto"
+ depends on CRYPTO_DEV_ASPEED
+ select CRYPTO_ENGINE
+ select CRYPTO_AES
+ select CRYPTO_DES
+ select CRYPTO_ECB
+ select CRYPTO_CBC
+ select CRYPTO_CFB
+ select CRYPTO_OFB
+ select CRYPTO_CTR
+ help
+ Select here to enable ASPEED Hash & Crypto Engine (HACE)
+ crypto driver.
+ Supports AES/DES symmetric-key encryption and decryption
+ with ECB/CBC/CFB/OFB/CTR options.
diff --git a/drivers/crypto/aspeed/Makefile b/drivers/crypto/aspeed/Makefile
index 8bc8d4fed5a9..4b29bdae9965 100644
--- a/drivers/crypto/aspeed/Makefile
+++ b/drivers/crypto/aspeed/Makefile
@@ -4,3 +4,5 @@ aspeed_crypto-objs := aspeed-hace.o \
obj-$(CONFIG_CRYPTO_DEV_ASPEED_HACE_HASH) += aspeed-hace-hash.o
hace-hash-$(CONFIG_CRYPTO_DEV_ASPEED_HACE_HASH) := aspeed-hace-hash.o
+obj-$(CONFIG_CRYPTO_DEV_ASPEED_HACE_CRYPTO) += aspeed-hace-crypto.o
+hace-hash-$(CONFIG_CRYPTO_DEV_ASPEED_HACE_CRYPTO) := aspeed-hace-crypto.o
diff --git a/drivers/crypto/aspeed/aspeed-hace-crypto.c b/drivers/crypto/aspeed/aspeed-hace-crypto.c
new file mode 100644
index 000000000000..1dd80fc1671f
--- /dev/null
+++ b/drivers/crypto/aspeed/aspeed-hace-crypto.c
@@ -0,0 +1,1041 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Aspeed Technology Inc.
+ */
+
+#include "aspeed-hace.h"
+
+#ifdef ASPEED_CIPHER_DEBUG
+#define CIPHER_DBG(h, fmt, ...) \
+ dev_dbg((h)->dev, "%s() " fmt, __func__, ##__VA_ARGS__)
+#else
+#define CIPHER_DBG(h, fmt, ...) \
+ ((void)(h))
+#endif
+
+static int aspeed_hace_crypto_handle_queue(struct aspeed_hace_dev *hace_dev,
+ struct skcipher_request *req)
+{
+ return crypto_transfer_skcipher_request_to_engine(
+ hace_dev->crypt_engine_crypto, req);
+}
+
+static int aspeed_crypto_do_request(struct crypto_engine *engine, void *areq)
+{
+ struct skcipher_request *req = skcipher_request_cast(areq);
+ struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
+ struct aspeed_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+ struct aspeed_hace_dev *hace_dev = ctx->hace_dev;
+ struct aspeed_engine_crypto *crypto_engine;
+ int rc;
+
+ crypto_engine = &hace_dev->crypto_engine;
+ crypto_engine->req = req;
+ crypto_engine->flags |= CRYPTO_FLAGS_BUSY;
+
+ rc = ctx->start(hace_dev);
+
+ if (rc != -EINPROGRESS)
+ return -EIO;
+
+ return 0;
+}
+
+static int aspeed_sk_complete(struct aspeed_hace_dev *hace_dev, int err)
+{
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
+ struct aspeed_cipher_reqctx *rctx;
+ struct skcipher_request *req;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ req = crypto_engine->req;
+ rctx = skcipher_request_ctx(req);
+
+ if (rctx->enc_cmd & HACE_CMD_IV_REQUIRE) {
+ if (rctx->enc_cmd & HACE_CMD_DES_SELECT)
+ memcpy(req->iv, crypto_engine->cipher_ctx +
+ DES_KEY_SIZE, DES_KEY_SIZE);
+ else
+ memcpy(req->iv, crypto_engine->cipher_ctx,
+ AES_BLOCK_SIZE);
+ }
+
+ crypto_engine->flags &= ~CRYPTO_FLAGS_BUSY;
+
+ crypto_finalize_skcipher_request(hace_dev->crypt_engine_crypto, req,
+ err);
+
+ return err;
+}
+
+static int aspeed_sk_transfer_sg(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
+ struct device *dev = hace_dev->dev;
+ struct aspeed_cipher_reqctx *rctx;
+ struct skcipher_request *req;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ req = crypto_engine->req;
+ rctx = skcipher_request_ctx(req);
+
+ if (req->src == req->dst) {
+ dma_unmap_sg(dev, req->src, rctx->src_nents, DMA_BIDIRECTIONAL);
+ } else {
+ dma_unmap_sg(dev, req->src, rctx->src_nents, DMA_TO_DEVICE);
+ dma_unmap_sg(dev, req->dst, rctx->dst_nents, DMA_FROM_DEVICE);
+ }
+
+ return aspeed_sk_complete(hace_dev, 0);
+}
+
+static int aspeed_sk_transfer(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
+ struct device *dev = hace_dev->dev;
+ struct aspeed_cipher_reqctx *rctx;
+ struct skcipher_request *req;
+ struct scatterlist *out_sg;
+ int nbytes = 0;
+ int rc = 0;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ req = crypto_engine->req;
+ rctx = skcipher_request_ctx(req);
+ out_sg = req->dst;
+
+ /* Copy output buffer to dst scatter-gather lists */
+ nbytes = sg_copy_from_buffer(out_sg, rctx->dst_nents,
+ crypto_engine->cipher_addr, req->cryptlen);
+ if (!nbytes) {
+ dev_warn(dev, "nbytes:%d, req->cryptlen:%d\n",
+ nbytes, req->cryptlen);
+ rc = -EINVAL;
+ }
+
+ return aspeed_sk_complete(hace_dev, rc);
+}
+
+static int aspeed_sk_start(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
+ struct aspeed_cipher_reqctx *rctx;
+ struct skcipher_request *req;
+ struct scatterlist *in_sg;
+ int nbytes;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ req = crypto_engine->req;
+ rctx = skcipher_request_ctx(req);
+ in_sg = req->src;
+
+ nbytes = sg_copy_to_buffer(in_sg, rctx->src_nents,
+ crypto_engine->cipher_addr, req->cryptlen);
+
+ CIPHER_DBG(hace_dev, "%s:%d, %s:%d, %s:%d, %s:%d\n",
+ "nbytes", nbytes, "req->cryptlen", req->cryptlen,
+ "nb_in_sg", rctx->src_nents, "nb_out_sg", rctx->dst_nents);
+ if (!nbytes) {
+ dev_warn(hace_dev->dev, "invalid nbytes\n");
+ return -EINVAL;
+ }
+
+ crypto_engine->resume = aspeed_sk_transfer;
+
+ /* Trigger engines */
+ ast_hace_write(hace_dev, crypto_engine->cipher_dma_addr,
+ ASPEED_HACE_SRC);
+ ast_hace_write(hace_dev, crypto_engine->cipher_dma_addr,
+ ASPEED_HACE_DEST);
+ ast_hace_write(hace_dev, req->cryptlen, ASPEED_HACE_DATA_LEN);
+ ast_hace_write(hace_dev, rctx->enc_cmd, ASPEED_HACE_CMD);
+
+ return -EINPROGRESS;
+}
+
+static int aspeed_sk_start_sg(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
+ struct aspeed_sg_list *src_list, *dst_list;
+ dma_addr_t src_dma_addr, dst_dma_addr;
+ struct aspeed_cipher_reqctx *rctx;
+ struct skcipher_request *req;
+ struct scatterlist *s;
+ int src_sg_len;
+ int dst_sg_len;
+ int total, i;
+ int rc;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ req = crypto_engine->req;
+ rctx = skcipher_request_ctx(req);
+
+ rctx->enc_cmd |= HACE_CMD_DES_SG_CTRL | HACE_CMD_SRC_SG_CTRL |
+ HACE_CMD_AES_KEY_HW_EXP | HACE_CMD_MBUS_REQ_SYNC_EN;
+
+ /* BIDIRECTIONAL */
+ if (req->dst == req->src) {
+ src_sg_len = dma_map_sg(hace_dev->dev, req->src,
+ rctx->src_nents, DMA_BIDIRECTIONAL);
+ dst_sg_len = src_sg_len;
+ if (!src_sg_len) {
+ dev_warn(hace_dev->dev, "dma_map_sg() src error\n");
+ return -EINVAL;
+ }
+
+ } else {
+ src_sg_len = dma_map_sg(hace_dev->dev, req->src,
+ rctx->src_nents, DMA_TO_DEVICE);
+ if (!src_sg_len) {
+ dev_warn(hace_dev->dev, "dma_map_sg() src error\n");
+ return -EINVAL;
+ }
+
+ dst_sg_len = dma_map_sg(hace_dev->dev, req->dst,
+ rctx->dst_nents, DMA_FROM_DEVICE);
+ if (!dst_sg_len) {
+ dev_warn(hace_dev->dev, "dma_map_sg() dst error\n");
+ rc = -EINVAL;
+ goto free_req_src;
+ }
+ }
+
+ src_list = (struct aspeed_sg_list *)crypto_engine->cipher_addr;
+ src_dma_addr = crypto_engine->cipher_dma_addr;
+ total = req->cryptlen;
+
+ for_each_sg(req->src, s, src_sg_len, i) {
+ src_list[i].phy_addr = sg_dma_address(s);
+
+ if (total > sg_dma_len(s)) {
+ src_list[i].len = sg_dma_len(s);
+ total -= src_list[i].len;
+
+ } else {
+ /* last sg list */
+ src_list[i].len = total;
+ src_list[i].len |= BIT(31);
+ total = 0;
+ }
+
+ src_list[i].phy_addr = cpu_to_le32(src_list[i].phy_addr);
+ src_list[i].len = cpu_to_le32(src_list[i].len);
+ }
+
+ if (total != 0) {
+ rc = -EINVAL;
+ goto free_req;
+ }
+
+ if (req->dst == req->src) {
+ dst_list = src_list;
+ dst_dma_addr = src_dma_addr;
+
+ } else {
+ dst_list = (struct aspeed_sg_list *)crypto_engine->dst_sg_addr;
+ dst_dma_addr = crypto_engine->dst_sg_dma_addr;
+ total = req->cryptlen;
+
+ for_each_sg(req->dst, s, dst_sg_len, i) {
+ dst_list[i].phy_addr = sg_dma_address(s);
+
+ if (total > sg_dma_len(s)) {
+ dst_list[i].len = sg_dma_len(s);
+ total -= dst_list[i].len;
+
+ } else {
+ /* last sg list */
+ dst_list[i].len = total;
+ dst_list[i].len |= BIT(31);
+ total = 0;
+ }
+
+ dst_list[i].phy_addr = cpu_to_le32(dst_list[i].phy_addr);
+ dst_list[i].len = cpu_to_le32(dst_list[i].len);
+
+ }
+
+ dst_list[dst_sg_len].phy_addr = 0;
+ dst_list[dst_sg_len].len = 0;
+ }
+
+ if (total != 0) {
+ rc = -EINVAL;
+ goto free_req;
+ }
+
+ crypto_engine->resume = aspeed_sk_transfer_sg;
+
+ /* Memory barrier to ensure all data setup before engine starts */
+ mb();
+
+ /* Trigger engines */
+ ast_hace_write(hace_dev, src_dma_addr, ASPEED_HACE_SRC);
+ ast_hace_write(hace_dev, dst_dma_addr, ASPEED_HACE_DEST);
+ ast_hace_write(hace_dev, req->cryptlen, ASPEED_HACE_DATA_LEN);
+ ast_hace_write(hace_dev, rctx->enc_cmd, ASPEED_HACE_CMD);
+
+ return -EINPROGRESS;
+
+free_req:
+ if (req->dst == req->src) {
+ dma_unmap_sg(hace_dev->dev, req->src, rctx->src_nents,
+ DMA_BIDIRECTIONAL);
+
+ } else {
+ dma_unmap_sg(hace_dev->dev, req->dst, rctx->dst_nents,
+ DMA_TO_DEVICE);
+ dma_unmap_sg(hace_dev->dev, req->src, rctx->src_nents,
+ DMA_TO_DEVICE);
+ }
+
+ return rc;
+
+free_req_src:
+ dma_unmap_sg(hace_dev->dev, req->src, rctx->src_nents, DMA_TO_DEVICE);
+
+ return rc;
+}
+
+static int aspeed_hace_skcipher_trigger(struct aspeed_hace_dev *hace_dev)
+{
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
+ struct aspeed_cipher_reqctx *rctx;
+ struct crypto_skcipher *cipher;
+ struct aspeed_cipher_ctx *ctx;
+ struct skcipher_request *req;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ req = crypto_engine->req;
+ rctx = skcipher_request_ctx(req);
+ cipher = crypto_skcipher_reqtfm(req);
+ ctx = crypto_skcipher_ctx(cipher);
+
+ /* enable interrupt */
+ rctx->enc_cmd |= HACE_CMD_ISR_EN;
+
+ rctx->dst_nents = sg_nents(req->dst);
+ rctx->src_nents = sg_nents(req->src);
+
+ ast_hace_write(hace_dev, crypto_engine->cipher_ctx_dma,
+ ASPEED_HACE_CONTEXT);
+
+ if (rctx->enc_cmd & HACE_CMD_IV_REQUIRE) {
+ if (rctx->enc_cmd & HACE_CMD_DES_SELECT)
+ memcpy(crypto_engine->cipher_ctx + DES_BLOCK_SIZE,
+ req->iv, DES_BLOCK_SIZE);
+ else
+ memcpy(crypto_engine->cipher_ctx, req->iv,
+ AES_BLOCK_SIZE);
+ }
+
+ if (hace_dev->version == AST2600_VERSION) {
+ memcpy(crypto_engine->cipher_ctx + 16, ctx->key, ctx->key_len);
+
+ return aspeed_sk_start_sg(hace_dev);
+ }
+
+ memcpy(crypto_engine->cipher_ctx + 16, ctx->key, ctx->key_len);
+
+ return aspeed_sk_start(hace_dev);
+}
+
+static int aspeed_des_crypt(struct skcipher_request *req, u32 cmd)
+{
+ struct aspeed_cipher_reqctx *rctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
+ struct aspeed_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+ struct aspeed_hace_dev *hace_dev = ctx->hace_dev;
+ u32 crypto_alg = cmd & HACE_CMD_OP_MODE_MASK;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ if (crypto_alg == HACE_CMD_CBC || crypto_alg == HACE_CMD_ECB) {
+ if (!IS_ALIGNED(req->cryptlen, DES_BLOCK_SIZE))
+ return -EINVAL;
+ }
+
+ rctx->enc_cmd = cmd | HACE_CMD_DES_SELECT | HACE_CMD_RI_WO_DATA_ENABLE |
+ HACE_CMD_DES | HACE_CMD_CONTEXT_LOAD_ENABLE |
+ HACE_CMD_CONTEXT_SAVE_ENABLE;
+
+ return aspeed_hace_crypto_handle_queue(hace_dev, req);
+}
+
+static int aspeed_des_setkey(struct crypto_skcipher *cipher, const u8 *key,
+ unsigned int keylen)
+{
+ struct aspeed_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
+ struct aspeed_hace_dev *hace_dev = ctx->hace_dev;
+ int rc;
+
+ CIPHER_DBG(hace_dev, "keylen: %d bits\n", keylen);
+
+ if (keylen != DES_KEY_SIZE && keylen != DES3_EDE_KEY_SIZE) {
+ dev_warn(hace_dev->dev, "invalid keylen: %d bits\n", keylen);
+ return -EINVAL;
+ }
+
+ if (keylen == DES_KEY_SIZE) {
+ rc = crypto_des_verify_key(tfm, key);
+ if (rc)
+ return rc;
+
+ } else if (keylen == DES3_EDE_KEY_SIZE) {
+ rc = crypto_des3_ede_verify_key(tfm, key);
+ if (rc)
+ return rc;
+ }
+
+ memcpy(ctx->key, key, keylen);
+ ctx->key_len = keylen;
+
+ return 0;
+}
+
+static int aspeed_tdes_ctr_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CTR |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_ctr_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CTR |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_ofb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_OFB |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_ofb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_OFB |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_cfb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CFB |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_cfb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CFB |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_cbc_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CBC |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_cbc_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CBC |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_ecb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_ECB |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_tdes_ecb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_ECB |
+ HACE_CMD_TRIPLE_DES);
+}
+
+static int aspeed_des_ctr_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CTR |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_ctr_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CTR |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_ofb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_OFB |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_ofb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_OFB |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_cfb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CFB |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_cfb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CFB |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_cbc_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CBC |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_cbc_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CBC |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_ecb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_ECB |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_des_ecb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_des_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_ECB |
+ HACE_CMD_SINGLE_DES);
+}
+
+static int aspeed_aes_crypt(struct skcipher_request *req, u32 cmd)
+{
+ struct aspeed_cipher_reqctx *rctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
+ struct aspeed_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+ struct aspeed_hace_dev *hace_dev = ctx->hace_dev;
+ u32 crypto_alg = cmd & HACE_CMD_OP_MODE_MASK;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ if (crypto_alg == HACE_CMD_CBC || crypto_alg == HACE_CMD_ECB) {
+ if (!IS_ALIGNED(req->cryptlen, AES_BLOCK_SIZE))
+ return -EINVAL;
+ }
+
+ cmd |= HACE_CMD_AES_SELECT | HACE_CMD_RI_WO_DATA_ENABLE |
+ HACE_CMD_CONTEXT_LOAD_ENABLE | HACE_CMD_CONTEXT_SAVE_ENABLE;
+
+ switch (ctx->key_len) {
+ case AES_KEYSIZE_128:
+ cmd |= HACE_CMD_AES128;
+ break;
+ case AES_KEYSIZE_192:
+ cmd |= HACE_CMD_AES192;
+ break;
+ case AES_KEYSIZE_256:
+ cmd |= HACE_CMD_AES256;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ rctx->enc_cmd = cmd;
+
+ return aspeed_hace_crypto_handle_queue(hace_dev, req);
+}
+
+static int aspeed_aes_setkey(struct crypto_skcipher *cipher, const u8 *key,
+ unsigned int keylen)
+{
+ struct aspeed_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+ struct aspeed_hace_dev *hace_dev = ctx->hace_dev;
+ struct crypto_aes_ctx gen_aes_key;
+
+ CIPHER_DBG(hace_dev, "keylen: %d bits\n", (keylen * 8));
+
+ if (keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_192 &&
+ keylen != AES_KEYSIZE_256)
+ return -EINVAL;
+
+ if (ctx->hace_dev->version == AST2500_VERSION) {
+ aes_expandkey(&gen_aes_key, key, keylen);
+ memcpy(ctx->key, gen_aes_key.key_enc, AES_MAX_KEYLENGTH);
+
+ } else {
+ memcpy(ctx->key, key, keylen);
+ }
+
+ ctx->key_len = keylen;
+
+ return 0;
+}
+
+static int aspeed_aes_ctr_decrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CTR);
+}
+
+static int aspeed_aes_ctr_encrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CTR);
+}
+
+static int aspeed_aes_ofb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_OFB);
+}
+
+static int aspeed_aes_ofb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_OFB);
+}
+
+static int aspeed_aes_cfb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CFB);
+}
+
+static int aspeed_aes_cfb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CFB);
+}
+
+static int aspeed_aes_cbc_decrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_CBC);
+}
+
+static int aspeed_aes_cbc_encrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_CBC);
+}
+
+static int aspeed_aes_ecb_decrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_DECRYPT | HACE_CMD_ECB);
+}
+
+static int aspeed_aes_ecb_encrypt(struct skcipher_request *req)
+{
+ return aspeed_aes_crypt(req, HACE_CMD_ENCRYPT | HACE_CMD_ECB);
+}
+
+static int aspeed_crypto_cra_init(struct crypto_skcipher *tfm)
+{
+ struct aspeed_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+ struct aspeed_hace_alg *crypto_alg;
+
+
+ crypto_alg = container_of(alg, struct aspeed_hace_alg, alg.skcipher);
+ ctx->hace_dev = crypto_alg->hace_dev;
+ ctx->start = aspeed_hace_skcipher_trigger;
+
+ CIPHER_DBG(ctx->hace_dev, "\n");
+
+ crypto_skcipher_set_reqsize(tfm, sizeof(struct aspeed_cipher_reqctx));
+
+ ctx->enginectx.op.do_one_request = aspeed_crypto_do_request;
+ ctx->enginectx.op.prepare_request = NULL;
+ ctx->enginectx.op.unprepare_request = NULL;
+
+ return 0;
+}
+
+static void aspeed_crypto_cra_exit(struct crypto_skcipher *tfm)
+{
+ struct aspeed_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct aspeed_hace_dev *hace_dev = ctx->hace_dev;
+
+ CIPHER_DBG(hace_dev, "%s\n", tfm->base.__crt_alg->cra_name);
+}
+
+struct aspeed_hace_alg aspeed_crypto_algs[] = {
+ {
+ .alg.skcipher = {
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = aspeed_aes_setkey,
+ .encrypt = aspeed_aes_ecb_encrypt,
+ .decrypt = aspeed_aes_ecb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ecb(aes)",
+ .cra_driver_name = "aspeed-ecb-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = aspeed_aes_setkey,
+ .encrypt = aspeed_aes_cbc_encrypt,
+ .decrypt = aspeed_aes_cbc_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "cbc(aes)",
+ .cra_driver_name = "aspeed-cbc-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = aspeed_aes_setkey,
+ .encrypt = aspeed_aes_cfb_encrypt,
+ .decrypt = aspeed_aes_cfb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "cfb(aes)",
+ .cra_driver_name = "aspeed-cfb-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = aspeed_aes_setkey,
+ .encrypt = aspeed_aes_ofb_encrypt,
+ .decrypt = aspeed_aes_ofb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ofb(aes)",
+ .cra_driver_name = "aspeed-ofb-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_des_ecb_encrypt,
+ .decrypt = aspeed_des_ecb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ecb(des)",
+ .cra_driver_name = "aspeed-ecb-des",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_des_cbc_encrypt,
+ .decrypt = aspeed_des_cbc_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "cbc(des)",
+ .cra_driver_name = "aspeed-cbc-des",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_des_cfb_encrypt,
+ .decrypt = aspeed_des_cfb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "cfb(des)",
+ .cra_driver_name = "aspeed-cfb-des",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_des_ofb_encrypt,
+ .decrypt = aspeed_des_ofb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ofb(des)",
+ .cra_driver_name = "aspeed-ofb-des",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_tdes_ecb_encrypt,
+ .decrypt = aspeed_tdes_ecb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ecb(des3_ede)",
+ .cra_driver_name = "aspeed-ecb-tdes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_tdes_cbc_encrypt,
+ .decrypt = aspeed_tdes_cbc_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "cbc(des3_ede)",
+ .cra_driver_name = "aspeed-cbc-tdes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_tdes_cfb_encrypt,
+ .decrypt = aspeed_tdes_cfb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "cfb(des3_ede)",
+ .cra_driver_name = "aspeed-cfb-tdes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_tdes_ofb_encrypt,
+ .decrypt = aspeed_tdes_ofb_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ofb(des3_ede)",
+ .cra_driver_name = "aspeed-ofb-tdes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+};
+
+struct aspeed_hace_alg aspeed_crypto_algs_g6[] = {
+ {
+ .alg.skcipher = {
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = aspeed_aes_setkey,
+ .encrypt = aspeed_aes_ctr_encrypt,
+ .decrypt = aspeed_aes_ctr_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ctr(aes)",
+ .cra_driver_name = "aspeed-ctr-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_des_ctr_encrypt,
+ .decrypt = aspeed_des_ctr_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ctr(des)",
+ .cra_driver_name = "aspeed-ctr-des",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+ {
+ .alg.skcipher = {
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .setkey = aspeed_des_setkey,
+ .encrypt = aspeed_tdes_ctr_encrypt,
+ .decrypt = aspeed_tdes_ctr_decrypt,
+ .init = aspeed_crypto_cra_init,
+ .exit = aspeed_crypto_cra_exit,
+ .base = {
+ .cra_name = "ctr(des3_ede)",
+ .cra_driver_name = "aspeed-ctr-tdes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct aspeed_cipher_ctx),
+ .cra_alignmask = 0x0f,
+ .cra_module = THIS_MODULE,
+ }
+ }
+ },
+
+};
+
+void aspeed_register_hace_crypto_algs(struct aspeed_hace_dev *hace_dev)
+{
+ int rc, i;
+
+ CIPHER_DBG(hace_dev, "\n");
+
+ for (i = 0; i < ARRAY_SIZE(aspeed_crypto_algs); i++) {
+ aspeed_crypto_algs[i].hace_dev = hace_dev;
+ rc = crypto_register_skcipher(&aspeed_crypto_algs[i].alg.skcipher);
+ if (rc) {
+ CIPHER_DBG(hace_dev, "Failed to register %s\n",
+ aspeed_crypto_algs[i].alg.skcipher.base.cra_name);
+ }
+ }
+
+ if (hace_dev->version != AST2600_VERSION)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(aspeed_crypto_algs_g6); i++) {
+ aspeed_crypto_algs_g6[i].hace_dev = hace_dev;
+ rc = crypto_register_skcipher(&aspeed_crypto_algs_g6[i].alg.skcipher);
+ if (rc) {
+ CIPHER_DBG(hace_dev, "Failed to register %s\n",
+ aspeed_crypto_algs_g6[i].alg.skcipher.base.cra_name);
+ }
+ }
+}
diff --git a/drivers/crypto/aspeed/aspeed-hace.c b/drivers/crypto/aspeed/aspeed-hace.c
index 35b6017b3032..4c3b8dcec9d8 100644
--- a/drivers/crypto/aspeed/aspeed-hace.c
+++ b/drivers/crypto/aspeed/aspeed-hace.c
@@ -31,10 +31,22 @@ void __weak aspeed_unregister_hace_hash_algs(struct aspeed_hace_dev *hace_dev)
pr_warn("%s: Not supported yet\n", __func__);
}
+/* Weak function for HACE crypto */
+void __weak aspeed_register_hace_crypto_algs(struct aspeed_hace_dev *hace_dev)
+{
+ pr_warn("%s: Not supported yet\n", __func__);
+}
+
+void __weak aspeed_unregister_hace_crypto_algs(struct aspeed_hace_dev *hace_dev)
+{
+ pr_warn("%s: Not supported yet\n", __func__);
+}
+
/* HACE interrupt service routine */
static irqreturn_t aspeed_hace_irq(int irq, void *dev)
{
struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)dev;
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
u32 sts;
@@ -50,9 +62,24 @@ static irqreturn_t aspeed_hace_irq(int irq, void *dev)
dev_warn(hace_dev->dev, "HASH no active requests.\n");
}
+ if (sts & HACE_CRYPTO_ISR) {
+ if (crypto_engine->flags & CRYPTO_FLAGS_BUSY)
+ tasklet_schedule(&crypto_engine->done_task);
+ else
+ dev_warn(hace_dev->dev, "CRYPTO no active requests.\n");
+ }
+
return IRQ_HANDLED;
}
+static void aspeed_hace_cryptro_done_task(unsigned long data)
+{
+ struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)data;
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
+
+ crypto_engine->resume(hace_dev);
+}
+
static void aspeed_hace_hash_done_task(unsigned long data)
{
struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)data;
@@ -64,11 +91,13 @@ static void aspeed_hace_hash_done_task(unsigned long data)
static void aspeed_hace_register(struct aspeed_hace_dev *hace_dev)
{
aspeed_register_hace_hash_algs(hace_dev);
+ aspeed_register_hace_crypto_algs(hace_dev);
}
static void aspeed_hace_unregister(struct aspeed_hace_dev *hace_dev)
{
aspeed_unregister_hace_hash_algs(hace_dev);
+ aspeed_unregister_hace_crypto_algs(hace_dev);
}
static const struct of_device_id aspeed_hace_of_matches[] = {
@@ -79,6 +108,7 @@ static const struct of_device_id aspeed_hace_of_matches[] = {
static int aspeed_hace_probe(struct platform_device *pdev)
{
+ struct aspeed_engine_crypto *crypto_engine;
const struct of_device_id *hace_dev_id;
struct aspeed_engine_hash *hash_engine;
struct aspeed_hace_dev *hace_dev;
@@ -99,6 +129,7 @@ static int aspeed_hace_probe(struct platform_device *pdev)
hace_dev->dev = &pdev->dev;
hace_dev->version = (unsigned long)hace_dev_id->data;
hash_engine = &hace_dev->hash_engine;
+ crypto_engine = &hace_dev->crypto_engine;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -115,6 +146,17 @@ static int aspeed_hace_probe(struct platform_device *pdev)
tasklet_init(&hash_engine->done_task, aspeed_hace_hash_done_task,
(unsigned long)hace_dev);
+ /* Initialize crypto hardware engine structure for crypto */
+ hace_dev->crypt_engine_crypto = crypto_engine_alloc_init(hace_dev->dev,
+ true);
+
+ rc = crypto_engine_start(hace_dev->crypt_engine_crypto);
+ if (rc)
+ goto err_engine_crypto_start;
+
+ tasklet_init(&crypto_engine->done_task, aspeed_hace_cryptro_done_task,
+ (unsigned long)hace_dev);
+
hace_dev->regs = devm_ioremap_resource(&pdev->dev, res);
if (!hace_dev->regs) {
dev_err(&pdev->dev, "Failed to map resources\n");
@@ -160,14 +202,66 @@ static int aspeed_hace_probe(struct platform_device *pdev)
goto clk_exit;
}
+ /* Allocate DMA buffer for crypto engine context used */
+ crypto_engine->cipher_ctx =
+ dma_alloc_coherent(&pdev->dev,
+ PAGE_SIZE,
+ &crypto_engine->cipher_ctx_dma,
+ GFP_KERNEL);
+ if (!crypto_engine->cipher_ctx) {
+ dev_err(&pdev->dev, "Failed to allocate cipher ctx dma\n");
+ rc = -ENOMEM;
+ goto free_hash_src;
+ }
+
+ /* Allocate DMA buffer for crypto engine input used */
+ crypto_engine->cipher_addr =
+ dma_alloc_coherent(&pdev->dev,
+ ASPEED_CRYPTO_SRC_DMA_BUF_LEN,
+ &crypto_engine->cipher_dma_addr,
+ GFP_KERNEL);
+ if (!crypto_engine->cipher_addr) {
+ dev_err(&pdev->dev, "Failed to allocate cipher addr dma\n");
+ rc = -ENOMEM;
+ goto free_cipher_ctx;
+ }
+
+ /* Allocate DMA buffer for crypto engine output used */
+ if (hace_dev->version == AST2600_VERSION) {
+ crypto_engine->dst_sg_addr =
+ dma_alloc_coherent(&pdev->dev,
+ ASPEED_CRYPTO_DST_DMA_BUF_LEN,
+ &crypto_engine->dst_sg_dma_addr,
+ GFP_KERNEL);
+ if (!crypto_engine->dst_sg_addr) {
+ dev_err(&pdev->dev, "Failed to allocate dst_sg dma\n");
+ rc = -ENOMEM;
+ goto free_cipher_addr;
+ }
+ }
+
aspeed_hace_register(hace_dev);
dev_info(&pdev->dev, "ASPEED Crypto Accelerator successfully registered\n");
return rc;
+free_cipher_addr:
+ dma_free_coherent(&pdev->dev, ASPEED_CRYPTO_SRC_DMA_BUF_LEN,
+ crypto_engine->cipher_addr,
+ crypto_engine->cipher_dma_addr);
+free_cipher_ctx:
+ dma_free_coherent(&pdev->dev, PAGE_SIZE,
+ crypto_engine->cipher_ctx,
+ crypto_engine->cipher_ctx_dma);
+free_hash_src:
+ dma_free_coherent(&pdev->dev, ASPEED_HASH_SRC_DMA_BUF_LEN,
+ hash_engine->ahash_src_addr,
+ hash_engine->ahash_src_dma_addr);
clk_exit:
clk_disable_unprepare(hace_dev->clk);
+err_engine_crypto_start:
+ crypto_engine_exit(hace_dev->crypt_engine_crypto);
err_engine_hash_start:
crypto_engine_exit(hace_dev->crypt_engine_hash);
@@ -177,17 +271,31 @@ static int aspeed_hace_probe(struct platform_device *pdev)
static int aspeed_hace_remove(struct platform_device *pdev)
{
struct aspeed_hace_dev *hace_dev = platform_get_drvdata(pdev);
+ struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine;
struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
aspeed_hace_unregister(hace_dev);
crypto_engine_exit(hace_dev->crypt_engine_hash);
+ crypto_engine_exit(hace_dev->crypt_engine_crypto);
tasklet_kill(&hash_engine->done_task);
+ tasklet_kill(&crypto_engine->done_task);
dma_free_coherent(&pdev->dev, ASPEED_HASH_SRC_DMA_BUF_LEN,
hash_engine->ahash_src_addr,
hash_engine->ahash_src_dma_addr);
+ dma_free_coherent(&pdev->dev, PAGE_SIZE,
+ crypto_engine->cipher_ctx,
+ crypto_engine->cipher_ctx_dma);
+ dma_free_coherent(&pdev->dev, ASPEED_CRYPTO_SRC_DMA_BUF_LEN,
+ crypto_engine->cipher_addr,
+ crypto_engine->cipher_dma_addr);
+
+ if (hace_dev->version == AST2600_VERSION)
+ dma_alloc_coherent(&pdev->dev, ASPEED_CRYPTO_DST_DMA_BUF_LEN,
+ crypto_engine->dst_sg_addr,
+ crypto_engine->dst_sg_dma_addr);
clk_disable_unprepare(hace_dev->clk);
diff --git a/drivers/crypto/aspeed/aspeed-hace.h b/drivers/crypto/aspeed/aspeed-hace.h
index a9aa1e1d90fe..813e441d19d7 100644
--- a/drivers/crypto/aspeed/aspeed-hace.h
+++ b/drivers/crypto/aspeed/aspeed-hace.h
@@ -7,9 +7,12 @@
#include <linux/err.h>
#include <linux/fips.h>
#include <linux/dma-mapping.h>
+#include <crypto/aes.h>
+#include <crypto/des.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/akcipher.h>
+#include <crypto/internal/des.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/kpp.h>
#include <crypto/internal/skcipher.h>
@@ -24,15 +27,75 @@
* HACE register definitions *
* *
* ***************************/
+#define ASPEED_HACE_SRC 0x00 /* Crypto Data Source Base Address Register */
+#define ASPEED_HACE_DEST 0x04 /* Crypto Data Destination Base Address Register */
+#define ASPEED_HACE_CONTEXT 0x08 /* Crypto Context Buffer Base Address Register */
+#define ASPEED_HACE_DATA_LEN 0x0C /* Crypto Data Length Register */
+#define ASPEED_HACE_CMD 0x10 /* Crypto Engine Command Register */
+
+/* G5 */
+#define ASPEED_HACE_TAG 0x18 /* HACE Tag Register */
+/* G6 */
+#define ASPEED_HACE_GCM_ADD_LEN 0x14 /* Crypto AES-GCM Additional Data Length Register */
+#define ASPEED_HACE_GCM_TAG_BASE_ADDR 0x18 /* Crypto AES-GCM Tag Write Buff Base Address Reg */
#define ASPEED_HACE_STS 0x1C /* HACE Status Register */
+
#define ASPEED_HACE_HASH_SRC 0x20 /* Hash Data Source Base Address Register */
#define ASPEED_HACE_HASH_DIGEST_BUFF 0x24 /* Hash Digest Write Buffer Base Address Register */
#define ASPEED_HACE_HASH_KEY_BUFF 0x28 /* Hash HMAC Key Buffer Base Address Register */
#define ASPEED_HACE_HASH_DATA_LEN 0x2C /* Hash Data Length Register */
#define ASPEED_HACE_HASH_CMD 0x30 /* Hash Engine Command Register */
+/* crypto cmd */
+#define HACE_CMD_SINGLE_DES 0
+#define HACE_CMD_TRIPLE_DES BIT(17)
+#define HACE_CMD_AES_SELECT 0
+#define HACE_CMD_DES_SELECT BIT(16)
+#define HACE_CMD_ISR_EN BIT(12)
+#define HACE_CMD_CONTEXT_SAVE_ENABLE (0)
+#define HACE_CMD_CONTEXT_SAVE_DISABLE BIT(9)
+#define HACE_CMD_AES (0)
+#define HACE_CMD_DES (0)
+#define HACE_CMD_RC4 BIT(8)
+#define HACE_CMD_DECRYPT (0)
+#define HACE_CMD_ENCRYPT BIT(7)
+
+#define HACE_CMD_ECB (0x0 << 4)
+#define HACE_CMD_CBC (0x1 << 4)
+#define HACE_CMD_CFB (0x2 << 4)
+#define HACE_CMD_OFB (0x3 << 4)
+#define HACE_CMD_CTR (0x4 << 4)
+#define HACE_CMD_OP_MODE_MASK (0x7 << 4)
+
+#define HACE_CMD_AES128 (0x0 << 2)
+#define HACE_CMD_AES192 (0x1 << 2)
+#define HACE_CMD_AES256 (0x2 << 2)
+#define HACE_CMD_OP_CASCADE (0x3)
+#define HACE_CMD_OP_INDEPENDENT (0x1)
+
+/* G5 */
+#define HACE_CMD_RI_WO_DATA_ENABLE (0)
+#define HACE_CMD_RI_WO_DATA_DISABLE BIT(11)
+#define HACE_CMD_CONTEXT_LOAD_ENABLE (0)
+#define HACE_CMD_CONTEXT_LOAD_DISABLE BIT(10)
+/* G6 */
+#define HACE_CMD_AES_KEY_FROM_OTP BIT(24)
+#define HACE_CMD_GHASH_TAG_XOR_EN BIT(23)
+#define HACE_CMD_GHASH_PAD_LEN_INV BIT(22)
+#define HACE_CMD_GCM_TAG_ADDR_SEL BIT(21)
+#define HACE_CMD_MBUS_REQ_SYNC_EN BIT(20)
+#define HACE_CMD_DES_SG_CTRL BIT(19)
+#define HACE_CMD_SRC_SG_CTRL BIT(18)
+#define HACE_CMD_CTR_IV_AES_96 (0x1 << 14)
+#define HACE_CMD_CTR_IV_DES_32 (0x1 << 14)
+#define HACE_CMD_CTR_IV_AES_64 (0x2 << 14)
+#define HACE_CMD_CTR_IV_AES_32 (0x3 << 14)
+#define HACE_CMD_AES_KEY_HW_EXP BIT(13)
+#define HACE_CMD_GCM (0x5 << 4)
+
/* interrupt status reg */
+#define HACE_CRYPTO_ISR BIT(12)
#define HACE_HASH_ISR BIT(9)
#define HACE_HASH_BUSY BIT(0)
@@ -77,6 +140,9 @@
#define ASPEED_HASH_SRC_DMA_BUF_LEN 0xa000
#define ASPEED_HASH_QUEUE_LENGTH 50
+#define HACE_CMD_IV_REQUIRE (HACE_CMD_CBC | HACE_CMD_CFB | \
+ HACE_CMD_OFB | HACE_CMD_CTR)
+
struct aspeed_hace_dev;
typedef int (*aspeed_hace_fn_t)(struct aspeed_hace_dev *);
@@ -145,6 +211,44 @@ struct aspeed_sham_reqctx {
u64 digcnt[2];
};
+struct aspeed_engine_crypto {
+ struct tasklet_struct done_task;
+ unsigned long flags;
+ struct skcipher_request *req;
+
+ /* context buffer */
+ void *cipher_ctx;
+ dma_addr_t cipher_ctx_dma;
+
+ /* input buffer, could be single/scatter-gather lists */
+ void *cipher_addr;
+ dma_addr_t cipher_dma_addr;
+
+ /* output buffer, only used in scatter-gather lists */
+ void *dst_sg_addr;
+ dma_addr_t dst_sg_dma_addr;
+
+ /* callback func */
+ aspeed_hace_fn_t resume;
+};
+
+struct aspeed_cipher_ctx {
+ struct crypto_engine_ctx enginectx;
+
+ struct aspeed_hace_dev *hace_dev;
+ int key_len;
+ u8 key[AES_MAX_KEYLENGTH];
+
+ /* callback func */
+ aspeed_hace_fn_t start;
+};
+
+struct aspeed_cipher_reqctx {
+ int enc_cmd;
+ int src_nents;
+ int dst_nents;
+};
+
struct aspeed_hace_dev {
void __iomem *regs;
struct device *dev;
@@ -153,8 +257,10 @@ struct aspeed_hace_dev {
unsigned long version;
struct crypto_engine *crypt_engine_hash;
+ struct crypto_engine *crypt_engine_crypto;
struct aspeed_engine_hash hash_engine;
+ struct aspeed_engine_crypto crypto_engine;
};
struct aspeed_hace_alg {
@@ -177,5 +283,7 @@ enum aspeed_version {
void aspeed_register_hace_hash_algs(struct aspeed_hace_dev *hace_dev);
void aspeed_unregister_hace_hash_algs(struct aspeed_hace_dev *hace_dev);
+void aspeed_register_hace_crypto_algs(struct aspeed_hace_dev *hace_dev);
+void aspeed_unregister_hace_crypto_algs(struct aspeed_hace_dev *hace_dev);
#endif
--
2.25.1
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