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Subject[PATCH v2 1/5] crypto: aspeed: Add HACE hash driver
Date
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 | 22 +
drivers/crypto/aspeed/Makefile | 6 +
drivers/crypto/aspeed/aspeed-hace-hash.c | 1409 ++++++++++++++++++++++
drivers/crypto/aspeed/aspeed-hace.c | 221 ++++
drivers/crypto/aspeed/aspeed-hace.h | 182 +++
8 files changed, 1849 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 e8c52d0192a6..c020e0893eed 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3109,6 +3109,13 @@ 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,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 7b2d138bc83e..2b22d550c217 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 0a4fff23d272..b619c0732bc3 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-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o
diff --git a/drivers/crypto/aspeed/Kconfig b/drivers/crypto/aspeed/Kconfig
new file mode 100644
index 000000000000..17b800286a51
--- /dev/null
+++ b/drivers/crypto/aspeed/Kconfig
@@ -0,0 +1,22 @@
+config CRYPTO_DEV_ASPEED
+ tristate "Support for Aspeed cryptographic engine driver"
+ depends on ARCH_ASPEED
+ help
+ Hash and Crypto Engine (HACE) is designed to accelerate the
+ throughput of hash data digest, encryption and decryption.
+
+ Select y here to have support for the cryptographic driver
+ available on Aspeed SoC.
+
+config CRYPTO_DEV_ASPEED_HACE_HASH
+ bool "Enable ASPEED Hash & Crypto Engine (HACE) hash"
+ depends on CRYPTO_DEV_ASPEED
+ select CRYPTO_SHA1
+ select CRYPTO_SHA256
+ select CRYPTO_SHA512
+ select CRYPTO_HMAC
+ help
+ Select here to enable ASPEED Hash & Crypto Engine (HACE)
+ hash driver.
+ Supports multiple message digest standards, including
+ SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, and so on.
diff --git a/drivers/crypto/aspeed/Makefile b/drivers/crypto/aspeed/Makefile
new file mode 100644
index 000000000000..8bc8d4fed5a9
--- /dev/null
+++ b/drivers/crypto/aspeed/Makefile
@@ -0,0 +1,6 @@
+obj-$(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..9b003e12b2c8
--- /dev/null
+++ b/drivers/crypto/aspeed/aspeed-hace-hash.c
@@ -0,0 +1,1409 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Aspeed Technology Inc.
+ */
+
+#include "aspeed-hace.h"
+
+//#define ASPEED_AHASH_DEBUG
+
+#ifdef ASPEED_AHASH_DEBUG
+#define AHASH_DBG(h, fmt, ...) \
+ dev_info((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] = {
+ 0x01234567UL, 0x89abcdefUL, 0xfedcba98UL, 0x76543210UL,
+ 0xf0e1d2c3UL, 0, 0, 0
+};
+
+static const u32 sha224_iv[8] = {
+ 0xd89e05c1UL, 0x07d57c36UL, 0x17dd7030UL, 0x39590ef7UL,
+ 0x310bc0ffUL, 0x11155868UL, 0xa78ff964UL, 0xa44ffabeUL
+};
+
+static const u32 sha256_iv[8] = {
+ 0x67e6096aUL, 0x85ae67bbUL, 0x72f36e3cUL, 0x3af54fa5UL,
+ 0x7f520e51UL, 0x8c68059bUL, 0xabd9831fUL, 0x19cde05bUL
+};
+
+static const u32 sha384_iv[16] = {
+ 0x5d9dbbcbUL, 0xd89e05c1UL, 0x2a299a62UL, 0x07d57c36UL,
+ 0x5a015991UL, 0x17dd7030UL, 0xd8ec2f15UL, 0x39590ef7UL,
+ 0x67263367UL, 0x310bc0ffUL, 0x874ab48eUL, 0x11155868UL,
+ 0x0d2e0cdbUL, 0xa78ff964UL, 0x1d48b547UL, 0xa44ffabeUL
+};
+
+static const u32 sha512_iv[16] = {
+ 0x67e6096aUL, 0x08c9bcf3UL, 0x85ae67bbUL, 0x3ba7ca84UL,
+ 0x72f36e3cUL, 0x2bf894feUL, 0x3af54fa5UL, 0xf1361d5fUL,
+ 0x7f520e51UL, 0xd182e6adUL, 0x8c68059bUL, 0x1f6c3e2bUL,
+ 0xabd9831fUL, 0x6bbd41fbUL, 0x19cde05bUL, 0x79217e13UL
+};
+
+static const u32 sha512_224_iv[16] = {
+ 0xC8373D8CUL, 0xA24D5419UL, 0x6699E173UL, 0xD6D4DC89UL,
+ 0xAEB7FA1DUL, 0x829CFF32UL, 0x14D59D67UL, 0xCF9F2F58UL,
+ 0x692B6D0FUL, 0xA84DD47BUL, 0x736FE377UL, 0x4289C404UL,
+ 0xA8859D3FUL, 0xC8361D6AUL, 0xADE61211UL, 0xA192D691UL
+};
+
+static const u32 sha512_256_iv[16] = {
+ 0x94213122UL, 0x2CF72BFCUL, 0xA35F559FUL, 0xC2644CC8UL,
+ 0x6BB89323UL, 0x51B1536FUL, 0x19773896UL, 0xBDEA4059UL,
+ 0xE23E2896UL, 0xE3FF8EA8UL, 0x251E5EBEUL, 0x92398653UL,
+ 0xFC99012BUL, 0xAAB8852CUL, 0xDC2DB70EUL, 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", 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->ahash_req;
+ struct aspeed_sham_reqctx *rctx = ahash_request_ctx(req);
+ struct device *dev = hace_dev->dev;
+ int length, remain;
+ int rc = 0;
+
+ 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");
+ rc = -ENOMEM;
+ goto free;
+ }
+
+ 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;
+
+free:
+ dma_unmap_single(hace_dev->dev, rctx->digest_dma_addr,
+ SHA512_DIGEST_SIZE, DMA_BIDIRECTIONAL);
+ return rc;
+}
+
+/*
+ * 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->ahash_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++;
+ }
+
+ 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;
+ break;
+ }
+ }
+ }
+
+ 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:
+ 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->ahash_req;
+
+ AHASH_DBG(hace_dev, "\n");
+
+ hash_engine->flags &= ~CRYPTO_FLAGS_BUSY;
+
+ if (req->base.complete)
+ req->base.complete(&req->base, 0);
+
+ tasklet_schedule(&hash_engine->queue_task);
+
+ 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->ahash_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->ahash_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->ahash_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->ahash_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->ahash_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->ahash_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->ahash_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);
+}
+
+int aspeed_hace_hash_handle_queue(struct aspeed_hace_dev *hace_dev,
+ struct crypto_async_request *new_areq)
+{
+ struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine;
+ struct crypto_async_request *areq, *backlog;
+ struct aspeed_sham_reqctx *rctx;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&hash_engine->lock, flags);
+
+ if (new_areq)
+ ret = crypto_enqueue_request(&hash_engine->queue, new_areq);
+
+ if (hash_engine->flags & CRYPTO_FLAGS_BUSY) {
+ spin_unlock_irqrestore(&hash_engine->lock, flags);
+ return ret;
+ }
+
+ backlog = crypto_get_backlog(&hash_engine->queue);
+ areq = crypto_dequeue_request(&hash_engine->queue);
+ if (areq)
+ hash_engine->flags |= CRYPTO_FLAGS_BUSY;
+
+ spin_unlock_irqrestore(&hash_engine->lock, flags);
+
+ if (!areq)
+ return ret;
+
+ if (backlog)
+ backlog->complete(backlog, -EINPROGRESS);
+
+ if (hace_dev->version == AST2600_VERSION)
+ hash_engine->dma_prepare = aspeed_ahash_dma_prepare_sg;
+ else
+ hash_engine->dma_prepare = aspeed_ahash_dma_prepare;
+
+ hash_engine->ahash_req = ahash_request_cast(areq);
+ rctx = ahash_request_ctx(hash_engine->ahash_req);
+
+ 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);
+
+ return ret;
+}
+
+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->base);
+}
+
+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->base);
+}
+
+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] ^= 0x36;
+ bctx->opad[i] ^= 0x5c;
+ }
+
+ 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);
+ }
+ }
+
+ 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);
+}
+
+int 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)
+ return rc;
+ }
+
+ if (hace_dev->version != AST2600_VERSION)
+ return 0;
+
+ 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)
+ return rc;
+ }
+
+ return 0;
+}
diff --git a/drivers/crypto/aspeed/aspeed-hace.c b/drivers/crypto/aspeed/aspeed-hace.c
new file mode 100644
index 000000000000..b9a6699f0256
--- /dev/null
+++ b/drivers/crypto/aspeed/aspeed-hace.c
@@ -0,0 +1,221 @@
+// 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"
+
+// #define ASPEED_HACE_DEBUG
+#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 */
+int __weak aspeed_hace_hash_handle_queue(struct aspeed_hace_dev *hace_dev,
+ struct crypto_async_request *new_areq)
+{
+ pr_warn("%s: Not supported yet\n", __func__);
+ return -EINVAL;
+}
+
+int __weak aspeed_register_hace_hash_algs(struct aspeed_hace_dev *hace_dev)
+{
+ pr_warn("%s: Not supported yet\n", __func__);
+ return -EINVAL;
+}
+
+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_hash_queue_task(unsigned long data)
+{
+ struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)data;
+
+ aspeed_hace_hash_handle_queue(hace_dev, NULL);
+}
+
+static int aspeed_hace_register(struct aspeed_hace_dev *hace_dev)
+{
+ return 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);
+
+ spin_lock_init(&hash_engine->lock);
+ tasklet_init(&hash_engine->done_task, aspeed_hace_hash_done_task,
+ (unsigned long)hace_dev);
+ tasklet_init(&hash_engine->queue_task, aspeed_hace_hash_queue_task,
+ (unsigned long)hace_dev);
+ crypto_init_queue(&hash_engine->queue, ASPEED_HASH_QUEUE_LENGTH);
+
+ hace_dev->regs = devm_ioremap_resource(&pdev->dev, res);
+ if (!hace_dev->regs) {
+ dev_err(&pdev->dev, "Failed to map resources\n");
+ return -ENOMEM;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ 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 end;
+ }
+
+ rc = aspeed_hace_register(hace_dev);
+ if (rc) {
+ dev_err(&pdev->dev, "Failed to register algs, rc:0x%x\n", rc);
+ rc = 0;
+ }
+
+ dev_info(&pdev->dev, "ASPEED Crypto Accelerator successfully registered\n");
+
+ return 0;
+
+end:
+ clk_disable_unprepare(hace_dev->clk);
+ 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);
+
+ tasklet_kill(&hash_engine->done_task);
+ tasklet_kill(&hash_engine->queue_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..d99a6cb1fe1f
--- /dev/null
+++ b/drivers/crypto/aspeed/aspeed-hace.h
@@ -0,0 +1,182 @@
+/* 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/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 crypto_queue queue;
+ struct tasklet_struct done_task;
+ struct tasklet_struct queue_task;
+
+ /* protect hash engine structs */
+ spinlock_t lock;
+ unsigned long flags;
+
+ struct ahash_request *ahash_req;
+ void *ahash_src_addr;
+ dma_addr_t ahash_src_dma_addr;
+
+ dma_addr_t src_dma;
+ size_t src_length;
+ dma_addr_t digest_dma;
+
+ /* 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 aspeed_hace_dev *hace_dev;
+ unsigned long flags; /* hmac flag */
+
+ /* fallback stuff */
+ 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 */
+
+ dma_addr_t digest_dma_addr;
+ u8 digest[SHA512_DIGEST_SIZE] __aligned(64);
+ u64 digcnt[2];
+ size_t digsize;
+
+ /* walk state */
+ struct scatterlist *src_sg;
+ int src_nents;
+ unsigned int offset; /* offset in current sg */
+ unsigned int total; /* per update length */
+
+ size_t block_size;
+
+ dma_addr_t buffer_dma_addr;
+ size_t bufcnt; /* buffer counter */
+ u8 buffer[SHA512_BLOCK_SIZE * 2];
+};
+
+struct aspeed_hace_dev {
+ void __iomem *regs;
+ void __iomem *sec_regs;
+ struct device *dev;
+ int irq;
+ struct clk *clk;
+ unsigned long version;
+ struct aspeed_engine_hash hash_engine;
+};
+
+struct aspeed_hace_alg {
+ struct aspeed_hace_dev *hace_dev;
+ union {
+ struct skcipher_alg skcipher;
+ struct aead_alg aead;
+ struct ahash_alg ahash;
+ struct kpp_alg kpp;
+ struct akcipher_alg akcipher;
+ } 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))
+
+int aspeed_hace_hash_handle_queue(struct aspeed_hace_dev *hace_dev,
+ struct crypto_async_request *new_areq);
+int 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
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