[PATCH v5 3/3] crypto: starfive: Add sm4 support for JH8100

Jia Jie Ho
2024-05-30T03:47:58Z

Add driver support for sm4 skcipher and aead for StarFive JH8100 SoC.

Signed-off-by: Jia Jie Ho <jiajie.ho@starfivetech.com>
---
drivers/crypto/starfive/Kconfig | 1 +
drivers/crypto/starfive/Makefile | 4 +-
drivers/crypto/starfive/jh7110-cryp.c | 10 +-
drivers/crypto/starfive/jh7110-cryp.h | 39 +
drivers/crypto/starfive/jh8100-sm4.c | 1123 +++++++++++++++++++++++++
5 files changed, 1174 insertions(+), 3 deletions(-)
create mode 100644 drivers/crypto/starfive/jh8100-sm4.c

diff --git a/drivers/crypto/starfive/Kconfig b/drivers/crypto/starfive/Kconfig
index e6bf02d0ed1f..740bb70c5607 100644
--- a/drivers/crypto/starfive/Kconfig
+++ b/drivers/crypto/starfive/Kconfig
@@ -34,6 +34,7 @@ config CRYPTO_DEV_JH8100
select CRYPTO_SHA256
select CRYPTO_SHA512
select CRYPTO_SM3_GENERIC
+ select CRYPTO_SM4_GENERIC
select CRYPTO_RSA
select CRYPTO_AES
select CRYPTO_CCM
diff --git a/drivers/crypto/starfive/Makefile b/drivers/crypto/starfive/Makefile
index 867ce035af19..0a4476085716 100644
--- a/drivers/crypto/starfive/Makefile
+++ b/drivers/crypto/starfive/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0

obj-$(CONFIG_CRYPTO_DEV_JH7110) += jh7110-crypto.o
-jh7110-crypto-objs := jh7110-cryp.o jh7110-hash.o jh7110-rsa.o jh7110-aes.o jh8100-sm3.o
+jh7110-crypto-objs := jh7110-cryp.o jh7110-hash.o jh7110-rsa.o jh7110-aes.o jh8100-sm3.o jh8100-sm4.o

obj-$(CONFIG_CRYPTO_DEV_JH8100) += jh8100-crypto.o
-jh8100-crypto-objs := jh7110-cryp.o jh7110-hash.o jh7110-rsa.o jh7110-aes.o jh8100-sm3.o
+jh8100-crypto-objs := jh7110-cryp.o jh7110-hash.o jh7110-rsa.o jh7110-aes.o jh8100-sm3.o jh8100-sm4.o
diff --git a/drivers/crypto/starfive/jh7110-cryp.c b/drivers/crypto/starfive/jh7110-cryp.c
index 19bbcaaec18d..cdc34b6e1e81 100644
--- a/drivers/crypto/starfive/jh7110-cryp.c
+++ b/drivers/crypto/starfive/jh7110-cryp.c
@@ -168,10 +168,16 @@ static int starfive_cryp_probe(struct platform_device *pdev)
ret = starfive_sm3_register_algs();
if (ret)
goto err_algs_sm3;
+
+ ret = starfive_sm4_register_algs();
+ if (ret)
+ goto err_algs_sm4;
}

return 0;

+err_algs_sm4:
+ starfive_sm3_unregister_algs();
err_algs_sm3:
starfive_rsa_unregister_algs();
err_algs_rsa:
@@ -204,8 +210,10 @@ static void starfive_cryp_remove(struct platform_device *pdev)
starfive_hash_unregister_algs(cryp);
starfive_rsa_unregister_algs();

- if (cryp->type == STARFIVE_CRYPTO_JH8100)
+ if (cryp->type == STARFIVE_CRYPTO_JH8100) {
starfive_sm3_unregister_algs();
+ starfive_sm4_unregister_algs();
+ }

crypto_engine_stop(cryp->engine);
crypto_engine_exit(cryp->engine);
diff --git a/drivers/crypto/starfive/jh7110-cryp.h b/drivers/crypto/starfive/jh7110-cryp.h
index 60ac752352c8..ca35062fff60 100644
--- a/drivers/crypto/starfive/jh7110-cryp.h
+++ b/drivers/crypto/starfive/jh7110-cryp.h
@@ -7,6 +7,7 @@
#include <crypto/scatterwalk.h>
#include <crypto/sha2.h>
#include <crypto/sm3.h>
+#include <crypto/sm4.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
@@ -190,6 +191,40 @@ union starfive_sm3_csr {
};
};

+union starfive_sm4_csr {
+ u32 v;
+ struct {
+ u32 cmode :1;
+ u32 rsvd_0 :1;
+ u32 ie :1;
+ u32 sm4rst :1;
+ u32 rsvd_1 :1;
+#define STARFIVE_SM4_DONE BIT(5)
+ u32 sm4done :1;
+#define STARFIVE_SM4_KEY_DONE BIT(6)
+ u32 krdy :1;
+ u32 busy :1;
+ u32 vsm4_start :1;
+ u32 delay_sm4 :1;
+#define STARFIVE_SM4_CCM_START BIT(10)
+ u32 ccm_start :1;
+#define STARFIVE_SM4_GCM_START BIT(11)
+ u32 gcm_start :1;
+ u32 rsvd_2 :4;
+#define STARFIVE_SM4_MODE_XFB_1 0x0
+#define STARFIVE_SM4_MODE_XFB_128 0x5
+ u32 stmode :3;
+ u32 rsvd_3 :2;
+#define STARFIVE_SM4_MODE_ECB 0x0
+#define STARFIVE_SM4_MODE_CBC 0x1
+#define STARFIVE_SM4_MODE_CTR 0x4
+#define STARFIVE_SM4_MODE_CCM 0x5
+#define STARFIVE_SM4_MODE_GCM 0x6
+ u32 mode :3;
+ u32 rsvd_4 :8;
+ };
+};
+
struct starfive_rsa_key {
u8 *n;
u8 *e;
@@ -269,6 +304,7 @@ struct starfive_cryp_request_ctx {
union starfive_pka_cacr pka;
union starfive_aes_csr aes;
union starfive_sm3_csr sm3;
+ union starfive_sm4_csr sm4;
} csr;

struct scatterlist *in_sg;
@@ -295,4 +331,7 @@ void starfive_aes_unregister_algs(void);

int starfive_sm3_register_algs(void);
void starfive_sm3_unregister_algs(void);
+
+int starfive_sm4_register_algs(void);
+void starfive_sm4_unregister_algs(void);
#endif
diff --git a/drivers/crypto/starfive/jh8100-sm4.c b/drivers/crypto/starfive/jh8100-sm4.c
new file mode 100644
index 000000000000..195ba95fab7e
--- /dev/null
+++ b/drivers/crypto/starfive/jh8100-sm4.c
@@ -0,0 +1,1123 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * StarFive SM4 acceleration driver
+ *
+ * Copyright (c) 2022 - 2023 StarFive Technology
+ */
+
+#include <crypto/engine.h>
+#include <crypto/gcm.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/internal/aead.h>
+#include <crypto/internal/skcipher.h>
+#include "jh7110-cryp.h"
+#include <linux/dma/dw_axi.h>
+#include <linux/iopoll.h>
+
+#define STARFIVE_SM4_REGS_OFFSET 0x4100
+#define STARFIVE_SM4_SM4DIO0R (STARFIVE_SM4_REGS_OFFSET + 0x0)
+#define STARFIVE_SM4_KEY0 (STARFIVE_SM4_REGS_OFFSET + 0x4)
+#define STARFIVE_SM4_KEY1 (STARFIVE_SM4_REGS_OFFSET + 0x8)
+#define STARFIVE_SM4_KEY2 (STARFIVE_SM4_REGS_OFFSET + 0xC)
+#define STARFIVE_SM4_KEY3 (STARFIVE_SM4_REGS_OFFSET + 0x10)
+#define STARFIVE_SM4_IV0 (STARFIVE_SM4_REGS_OFFSET + 0x14)
+#define STARFIVE_SM4_IV1 (STARFIVE_SM4_REGS_OFFSET + 0x18)
+#define STARFIVE_SM4_IV2 (STARFIVE_SM4_REGS_OFFSET + 0x1c)
+#define STARFIVE_SM4_IV3 (STARFIVE_SM4_REGS_OFFSET + 0x20)
+#define STARFIVE_SM4_CSR (STARFIVE_SM4_REGS_OFFSET + 0x24)
+#define STARFIVE_SM4_NONCE0 (STARFIVE_SM4_REGS_OFFSET + 0x30)
+#define STARFIVE_SM4_NONCE1 (STARFIVE_SM4_REGS_OFFSET + 0x34)
+#define STARFIVE_SM4_NONCE2 (STARFIVE_SM4_REGS_OFFSET + 0x38)
+#define STARFIVE_SM4_NONCE3 (STARFIVE_SM4_REGS_OFFSET + 0x3c)
+#define STARFIVE_SM4_ALEN0 (STARFIVE_SM4_REGS_OFFSET + 0x40)
+#define STARFIVE_SM4_ALEN1 (STARFIVE_SM4_REGS_OFFSET + 0x44)
+#define STARFIVE_SM4_MLEN0 (STARFIVE_SM4_REGS_OFFSET + 0x48)
+#define STARFIVE_SM4_MLEN1 (STARFIVE_SM4_REGS_OFFSET + 0x4c)
+#define STARFIVE_SM4_IVLEN (STARFIVE_SM4_REGS_OFFSET + 0x50)
+
+#define FLG_MODE_MASK GENMASK(2, 0)
+#define FLG_ENCRYPT BIT(4)
+
+/* Misc */
+#define CCM_B0_ADATA 0x40
+#define SM4_BLOCK_32 (SM4_BLOCK_SIZE / sizeof(u32))
+
+static inline int starfive_sm4_wait_done(struct starfive_cryp_dev *cryp)
+{
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_SM4_CSR, status,
+ status & STARFIVE_SM4_DONE, 10, 100000);
+}
+
+static inline int starfive_sm4_wait_keydone(struct starfive_cryp_dev *cryp)
+{
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_SM4_CSR, status,
+ status & STARFIVE_SM4_KEY_DONE, 10, 100000);
+}
+
+static inline int is_encrypt(struct starfive_cryp_dev *cryp)
+{
+ return cryp->flags & FLG_ENCRYPT;
+}
+
+static int starfive_sm4_aead_write_key(struct starfive_cryp_ctx *ctx, u32 hw_mode)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ unsigned int value;
+ u32 *key = (u32 *)ctx->key;
+
+ writel(key[0], cryp->base + STARFIVE_SM4_KEY0);
+ writel(key[1], cryp->base + STARFIVE_SM4_KEY1);
+ writel(key[2], cryp->base + STARFIVE_SM4_KEY2);
+ writel(key[3], cryp->base + STARFIVE_SM4_KEY3);
+
+ value = readl(ctx->cryp->base + STARFIVE_SM4_CSR);
+
+ if (hw_mode == STARFIVE_SM4_MODE_GCM)
+ value |= STARFIVE_SM4_GCM_START;
+ else
+ value |= STARFIVE_SM4_CCM_START;
+
+ writel(value, cryp->base + STARFIVE_SM4_CSR);
+
+ if (starfive_sm4_wait_keydone(cryp))
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static inline void starfive_sm4_set_alen(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(upper_32_bits(cryp->assoclen), cryp->base + STARFIVE_SM4_ALEN0);
+ writel(lower_32_bits(cryp->assoclen), cryp->base + STARFIVE_SM4_ALEN1);
+}
+
+static inline void starfive_sm4_set_mlen(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(upper_32_bits(cryp->total_in), cryp->base + STARFIVE_SM4_MLEN0);
+ writel(lower_32_bits(cryp->total_in), cryp->base + STARFIVE_SM4_MLEN1);
+}
+
+static inline int starfive_sm4_ccm_check_iv(const u8 *iv)
+{
+ /* 2 <= L <= 8, so 1 <= L' <= 7. */
+ if (iv[0] < 1 || iv[0] > 7)
+ return -EINVAL;
+
+ return 0;
+}
+
+static inline void starfive_sm4_write_iv(struct starfive_cryp_ctx *ctx, u32 *iv)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(iv[0], cryp->base + STARFIVE_SM4_IV0);
+ writel(iv[1], cryp->base + STARFIVE_SM4_IV1);
+ writel(iv[2], cryp->base + STARFIVE_SM4_IV2);
+ writel(iv[3], cryp->base + STARFIVE_SM4_IV3);
+}
+
+static inline void starfive_sm4_get_iv(struct starfive_cryp_dev *cryp, u32 *iv)
+{
+ iv[0] = readl(cryp->base + STARFIVE_SM4_IV0);
+ iv[1] = readl(cryp->base + STARFIVE_SM4_IV1);
+ iv[2] = readl(cryp->base + STARFIVE_SM4_IV2);
+ iv[3] = readl(cryp->base + STARFIVE_SM4_IV3);
+}
+
+static inline void starfive_sm4_write_nonce(struct starfive_cryp_ctx *ctx, u32 *nonce)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(nonce[0], cryp->base + STARFIVE_SM4_NONCE0);
+ writel(nonce[1], cryp->base + STARFIVE_SM4_NONCE1);
+ writel(nonce[2], cryp->base + STARFIVE_SM4_NONCE2);
+ writel(nonce[3], cryp->base + STARFIVE_SM4_NONCE3);
+}
+
+static int starfive_sm4_write_key(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u32 *key = (u32 *)ctx->key;
+
+ writel(key[0], cryp->base + STARFIVE_SM4_KEY0);
+ writel(key[1], cryp->base + STARFIVE_SM4_KEY1);
+ writel(key[2], cryp->base + STARFIVE_SM4_KEY2);
+ writel(key[3], cryp->base + STARFIVE_SM4_KEY3);
+
+ if (starfive_sm4_wait_keydone(cryp))
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int starfive_sm4_ccm_init(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u8 iv[SM4_BLOCK_SIZE], b0[SM4_BLOCK_SIZE];
+ unsigned int textlen;
+
+ memcpy(iv, cryp->req.areq->iv, SM4_BLOCK_SIZE);
+ memset(iv + SM4_BLOCK_SIZE - 1 - iv[0], 0, iv[0] + 1);
+
+ /* Build B0 */
+ memcpy(b0, iv, SM4_BLOCK_SIZE);
+
+ b0[0] |= (8 * ((cryp->authsize - 2) / 2));
+
+ if (cryp->assoclen)
+ b0[0] |= CCM_B0_ADATA;
+
+ textlen = cryp->total_in;
+
+ b0[SM4_BLOCK_SIZE - 2] = textlen >> 8;
+ b0[SM4_BLOCK_SIZE - 1] = textlen & 0xFF;
+
+ starfive_sm4_write_nonce(ctx, (u32 *)b0);
+
+ return 0;
+}
+
+static int starfive_sm4_hw_init(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u32 hw_mode;
+ int ret = 0;
+
+ /* reset */
+ rctx->csr.sm4.v = 0;
+ rctx->csr.sm4.sm4rst = 1;
+ writel(rctx->csr.sm4.v, cryp->base + STARFIVE_SM4_CSR);
+
+ /* csr setup */
+ hw_mode = cryp->flags & FLG_MODE_MASK;
+
+ rctx->csr.sm4.v = 0;
+ rctx->csr.sm4.mode = hw_mode;
+ rctx->csr.sm4.cmode = !is_encrypt(cryp);
+ rctx->csr.sm4.stmode = STARFIVE_SM4_MODE_XFB_1;
+
+ if (cryp->side_chan) {
+ rctx->csr.sm4.delay_sm4 = 1;
+ rctx->csr.sm4.vsm4_start = 1;
+ }
+
+ writel(rctx->csr.sm4.v, cryp->base + STARFIVE_SM4_CSR);
+
+ switch (hw_mode) {
+ case STARFIVE_SM4_MODE_GCM:
+ starfive_sm4_set_alen(ctx);
+ starfive_sm4_set_mlen(ctx);
+ writel(GCM_AES_IV_SIZE, cryp->base + STARFIVE_SM4_IVLEN);
+ ret = starfive_sm4_aead_write_key(ctx, hw_mode);
+ if (ret)
+ return ret;
+
+ starfive_sm4_write_iv(ctx, (void *)cryp->req.areq->iv);
+ break;
+ case STARFIVE_SM4_MODE_CCM:
+ starfive_sm4_set_alen(ctx);
+ starfive_sm4_set_mlen(ctx);
+ starfive_sm4_ccm_init(ctx);
+ ret = starfive_sm4_aead_write_key(ctx, hw_mode);
+ if (ret)
+ return ret;
+ break;
+ case STARFIVE_SM4_MODE_CBC:
+ case STARFIVE_SM4_MODE_CTR:
+ starfive_sm4_write_iv(ctx, (void *)cryp->req.sreq->iv);
+ ret = starfive_sm4_write_key(ctx);
+ if (ret)
+ return ret;
+ break;
+ case STARFIVE_SM4_MODE_ECB:
+ ret = starfive_sm4_write_key(ctx);
+ if (ret)
+ return ret;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int starfive_sm4_read_authtag(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ int i;
+
+ if ((cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_GCM) {
+ cryp->tag_out[0] = readl(cryp->base + STARFIVE_SM4_NONCE0);
+ cryp->tag_out[1] = readl(cryp->base + STARFIVE_SM4_NONCE1);
+ cryp->tag_out[2] = readl(cryp->base + STARFIVE_SM4_NONCE2);
+ cryp->tag_out[3] = readl(cryp->base + STARFIVE_SM4_NONCE3);
+ } else {
+ for (i = 0; i < SM4_BLOCK_32; i++)
+ cryp->tag_out[i] = readl(cryp->base + STARFIVE_SM4_SM4DIO0R);
+ }
+
+ if (is_encrypt(cryp)) {
+ scatterwalk_map_and_copy(cryp->tag_out, rctx->out_sg,
+ cryp->total_in, cryp->authsize, 1);
+ } else {
+ if (crypto_memneq(cryp->tag_in, cryp->tag_out, cryp->authsize))
+ return dev_err_probe(cryp->dev, -EBADMSG,
+ "Failed tag verification\n");
+ }
+
+ return 0;
+}
+
+static void starfive_sm4_finish_req(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ int err = 0;
+
+ if (cryp->authsize)
+ err = starfive_sm4_read_authtag(ctx);
+
+ if ((cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_CBC ||
+ (cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_CTR)
+ starfive_sm4_get_iv(cryp, (void *)cryp->req.sreq->iv);
+
+ if (cryp->authsize)
+ crypto_finalize_aead_request(cryp->engine, cryp->req.areq, err);
+ else
+ crypto_finalize_skcipher_request(cryp->engine, cryp->req.sreq,
+ err);
+}
+
+static int starfive_sm4_gcm_write_adata(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ u32 *buffer;
+ int total_len, loop;
+
+ total_len = ALIGN(cryp->assoclen, SM4_BLOCK_SIZE) / sizeof(unsigned int);
+ buffer = (u32 *)rctx->adata;
+
+ for (loop = 0; loop < total_len; loop += 4) {
+ writel(*buffer, cryp->base + STARFIVE_SM4_NONCE0);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_SM4_NONCE1);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_SM4_NONCE2);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_SM4_NONCE3);
+ buffer++;
+
+ if (starfive_sm4_wait_done(cryp))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT,
+ "Timeout processing gcm aad block");
+ }
+
+ return 0;
+}
+
+static int starfive_sm4_ccm_write_adata(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ u32 *buffer;
+ int total_len, loop;
+
+ buffer = (u32 *)rctx->adata;
+ total_len = ALIGN(cryp->assoclen + 2, SM4_BLOCK_SIZE) / sizeof(unsigned int);
+
+ for (loop = 0; loop < total_len; loop += 4) {
+ writel(*buffer, cryp->base + STARFIVE_SM4_SM4DIO0R);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_SM4_SM4DIO0R);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_SM4_SM4DIO0R);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_SM4_SM4DIO0R);
+ buffer++;
+
+ if (starfive_sm4_wait_done(cryp))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT,
+ "Timeout processing ccm aad block");
+ }
+
+ return 0;
+}
+
+static void starfive_sm4_dma_done(void *param)
+{
+ struct starfive_cryp_dev *cryp = param;
+
+ complete(&cryp->dma_done);
+}
+
+static void starfive_sm4_dma_init(struct starfive_cryp_dev *cryp)
+{
+ struct dw_axi_peripheral_config periph_conf = {};
+
+ memset(&cryp->cfg_in, 0, sizeof(struct dma_slave_config));
+ memset(&cryp->cfg_out, 0, sizeof(struct dma_slave_config));
+
+ periph_conf.quirks = DWAXIDMAC_STARFIVE_SM_ALGO;
+
+ cryp->cfg_in.direction = DMA_MEM_TO_DEV;
+ cryp->cfg_in.src_addr_width = DMA_SLAVE_BUSWIDTH_8_BYTES;
+ cryp->cfg_in.dst_addr_width = DMA_SLAVE_BUSWIDTH_8_BYTES;
+ cryp->cfg_in.src_maxburst = cryp->dma_maxburst;
+ cryp->cfg_in.dst_maxburst = cryp->dma_maxburst;
+ cryp->cfg_in.dst_addr = cryp->phys_base + STARFIVE_SM_ALG_FIFO_IN_OFFSET;
+ cryp->cfg_in.peripheral_config = &periph_conf;
+ cryp->cfg_in.peripheral_size = sizeof(struct dw_axi_peripheral_config);
+
+ dmaengine_slave_config(cryp->tx, &cryp->cfg_in);
+
+ cryp->cfg_out.direction = DMA_DEV_TO_MEM;
+ cryp->cfg_out.src_addr_width = DMA_SLAVE_BUSWIDTH_8_BYTES;
+ cryp->cfg_out.dst_addr_width = DMA_SLAVE_BUSWIDTH_8_BYTES;
+ cryp->cfg_out.src_maxburst = cryp->dma_maxburst;
+ cryp->cfg_out.dst_maxburst = cryp->dma_maxburst;
+ cryp->cfg_out.src_addr = cryp->phys_base + STARFIVE_SM_ALG_FIFO_OUT_OFFSET;
+ cryp->cfg_out.peripheral_config = &periph_conf;
+ cryp->cfg_out.peripheral_size = sizeof(struct dw_axi_peripheral_config);
+
+ dmaengine_slave_config(cryp->rx, &cryp->cfg_out);
+
+ init_completion(&cryp->dma_done);
+}
+
+static int starfive_sm4_dma_xfer(struct starfive_cryp_dev *cryp,
+ struct scatterlist *src,
+ struct scatterlist *dst,
+ int len)
+{
+ struct dma_async_tx_descriptor *in_desc, *out_desc;
+ union starfive_sm_alg_cr alg_cr;
+ int ret = 0, in_save, out_save;
+
+ alg_cr.v = 0;
+ alg_cr.start = 1;
+ alg_cr.sm4_dma_en = 1;
+ writel(alg_cr.v, cryp->base + STARFIVE_SM_ALG_CR_OFFSET);
+
+ in_save = sg_dma_len(src);
+ out_save = sg_dma_len(dst);
+
+ writel(ALIGN(len, SM4_BLOCK_SIZE), cryp->base + STARFIVE_SM_DMA_IN_LEN_OFFSET);
+ writel(ALIGN(len, SM4_BLOCK_SIZE), cryp->base + STARFIVE_SM_DMA_OUT_LEN_OFFSET);
+
+ sg_dma_len(src) = ALIGN(len, SM4_BLOCK_SIZE);
+ sg_dma_len(dst) = ALIGN(len, SM4_BLOCK_SIZE);
+
+ out_desc = dmaengine_prep_slave_sg(cryp->rx, dst, 1, DMA_DEV_TO_MEM,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if (!out_desc) {
+ ret = -EINVAL;
+ goto dma_err;
+ }
+
+ out_desc->callback = starfive_sm4_dma_done;
+ out_desc->callback_param = cryp;
+
+ reinit_completion(&cryp->dma_done);
+ dmaengine_submit(out_desc);
+ dma_async_issue_pending(cryp->rx);
+
+ in_desc = dmaengine_prep_slave_sg(cryp->tx, src, 1, DMA_MEM_TO_DEV,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if (!in_desc) {
+ ret = -EINVAL;
+ goto dma_err;
+ }
+
+ dmaengine_submit(in_desc);
+ dma_async_issue_pending(cryp->tx);
+
+ if (!wait_for_completion_timeout(&cryp->dma_done,
+ msecs_to_jiffies(1000)))
+ ret = -ETIMEDOUT;
+
+dma_err:
+ sg_dma_len(src) = in_save;
+ sg_dma_len(dst) = out_save;
+
+ alg_cr.v = 0;
+ alg_cr.clear = 1;
+ writel(alg_cr.v, cryp->base + STARFIVE_SM_ALG_CR_OFFSET);
+
+ return ret;
+}
+
+static int starfive_sm4_map_sg(struct starfive_cryp_dev *cryp,
+ struct scatterlist *src,
+ struct scatterlist *dst)
+{
+ struct scatterlist *stsg, *dtsg;
+ struct scatterlist _src[2], _dst[2];
+ unsigned int remain = cryp->total_in;
+ unsigned int len, src_nents, dst_nents;
+ int ret;
+
+ if (src == dst) {
+ for (stsg = src, dtsg = dst; remain > 0;
+ stsg = sg_next(stsg), dtsg = sg_next(dtsg)) {
+ src_nents = dma_map_sg(cryp->dev, stsg, 1, DMA_BIDIRECTIONAL);
+ if (src_nents == 0)
+ return dev_err_probe(cryp->dev, -ENOMEM,
+ "dma_map_sg error\n");
+
+ dst_nents = src_nents;
+
+ len = min(sg_dma_len(stsg), remain);
+
+ ret = starfive_sm4_dma_xfer(cryp, stsg, dtsg, len);
+ dma_unmap_sg(cryp->dev, stsg, 1, DMA_BIDIRECTIONAL);
+ if (ret)
+ return ret;
+
+ remain -= len;
+ }
+ } else {
+ for (stsg = src, dtsg = dst;;) {
+ src_nents = dma_map_sg(cryp->dev, stsg, 1, DMA_TO_DEVICE);
+ if (src_nents == 0)
+ return dev_err_probe(cryp->dev, -ENOMEM,
+ "dma_map_sg src error\n");
+
+ dst_nents = dma_map_sg(cryp->dev, dtsg, 1, DMA_FROM_DEVICE);
+ if (dst_nents == 0)
+ return dev_err_probe(cryp->dev, -ENOMEM,
+ "dma_map_sg dst error\n");
+
+ len = min(sg_dma_len(stsg), sg_dma_len(dtsg));
+ len = min(len, remain);
+
+ ret = starfive_sm4_dma_xfer(cryp, stsg, dtsg, len);
+ dma_unmap_sg(cryp->dev, stsg, 1, DMA_TO_DEVICE);
+ dma_unmap_sg(cryp->dev, dtsg, 1, DMA_FROM_DEVICE);
+ if (ret)
+ return ret;
+
+ remain -= len;
+ if (remain == 0)
+ break;
+
+ if (sg_dma_len(stsg) - len) {
+ stsg = scatterwalk_ffwd(_src, stsg, len);
+ dtsg = sg_next(dtsg);
+ } else if (sg_dma_len(dtsg) - len) {
+ dtsg = scatterwalk_ffwd(_dst, dtsg, len);
+ stsg = sg_next(stsg);
+ } else {
+ stsg = sg_next(stsg);
+ dtsg = sg_next(dtsg);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int starfive_sm4_do_one_req(struct crypto_engine *engine, void *areq)
+{
+ struct skcipher_request *req =
+ container_of(areq, struct skcipher_request, base);
+ struct starfive_cryp_ctx *ctx =
+ crypto_skcipher_ctx(crypto_skcipher_reqtfm(req));
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = skcipher_request_ctx(req);
+ int ret;
+
+ cryp->req.sreq = req;
+ cryp->total_in = req->cryptlen;
+ cryp->total_out = req->cryptlen;
+ cryp->assoclen = 0;
+ cryp->authsize = 0;
+
+ rctx->in_sg = req->src;
+ rctx->out_sg = req->dst;
+
+ ctx->rctx = rctx;
+
+ ret = starfive_sm4_hw_init(ctx);
+ if (ret)
+ return ret;
+
+ if (!cryp->total_in)
+ goto finish_req;
+
+ starfive_sm4_dma_init(cryp);
+
+ ret = starfive_sm4_map_sg(cryp, rctx->in_sg, rctx->out_sg);
+ if (ret)
+ return ret;
+
+finish_req:
+ starfive_sm4_finish_req(ctx);
+
+ return 0;
+}
+
+static int starfive_sm4_init_tfm(struct crypto_skcipher *tfm,
+ const char *alg_name)
+{
+ struct starfive_cryp_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ ctx->cryp = starfive_cryp_find_dev(ctx);
+ if (!ctx->cryp)
+ return -ENODEV;
+
+ ctx->skcipher_fbk = crypto_alloc_skcipher(alg_name, 0,
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(ctx->skcipher_fbk))
+ return dev_err_probe(ctx->cryp->dev, PTR_ERR(ctx->skcipher_fbk),
+ "%s() failed to allocate fallback for %s\n",
+ __func__, alg_name);
+
+ crypto_skcipher_set_reqsize(tfm, sizeof(struct starfive_cryp_request_ctx) +
+ crypto_skcipher_reqsize(ctx->skcipher_fbk));
+
+ return 0;
+}
+
+static void starfive_sm4_exit_tfm(struct crypto_skcipher *tfm)
+{
+ struct starfive_cryp_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ crypto_free_skcipher(ctx->skcipher_fbk);
+}
+
+static int starfive_sm4_aead_do_one_req(struct crypto_engine *engine, void *areq)
+{
+ struct aead_request *req =
+ container_of(areq, struct aead_request, base);
+ struct starfive_cryp_ctx *ctx =
+ crypto_aead_ctx(crypto_aead_reqtfm(req));
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = aead_request_ctx(req);
+ struct scatterlist _dst[2], _src[2];
+ int ret;
+
+ cryp->req.areq = req;
+ cryp->assoclen = req->assoclen;
+ cryp->authsize = crypto_aead_authsize(crypto_aead_reqtfm(req));
+
+ if (is_encrypt(cryp)) {
+ cryp->total_in = req->cryptlen;
+ cryp->total_out = req->cryptlen;
+ } else {
+ cryp->total_in = req->cryptlen - cryp->authsize;
+ cryp->total_out = cryp->total_in;
+ scatterwalk_map_and_copy(cryp->tag_in, req->src,
+ cryp->total_in + cryp->assoclen,
+ cryp->authsize, 0);
+ }
+
+ if (cryp->assoclen) {
+ if ((cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_CCM) {
+ rctx->adata = kzalloc(cryp->assoclen + 2 + SM4_BLOCK_SIZE, GFP_KERNEL);
+ if (!rctx->adata)
+ return -ENOMEM;
+
+ /* Append 2 bytes zeroes at the start of ccm aad */
+ rctx->adata[0] = 0;
+ rctx->adata[1] = 0;
+
+ sg_copy_to_buffer(req->src,
+ sg_nents_for_len(req->src, cryp->assoclen),
+ &rctx->adata[2], cryp->assoclen);
+ } else {
+ rctx->adata = kzalloc(cryp->assoclen + SM4_BLOCK_SIZE, GFP_KERNEL);
+ if (!rctx->adata)
+ return dev_err_probe(cryp->dev, -ENOMEM,
+ "Failed to alloc memory for adata");
+
+ sg_copy_to_buffer(req->src,
+ sg_nents_for_len(req->src, cryp->assoclen),
+ rctx->adata, cryp->assoclen);
+ }
+ }
+
+ rctx->in_sg = scatterwalk_ffwd(_src, req->src, cryp->assoclen);
+ if (req->src == req->dst)
+ rctx->out_sg = rctx->in_sg;
+ else
+ rctx->out_sg = scatterwalk_ffwd(_dst, req->dst, cryp->assoclen);
+
+ if (cryp->total_in)
+ sg_zero_buffer(rctx->in_sg, sg_nents(rctx->in_sg),
+ sg_dma_len(rctx->in_sg) - cryp->total_in,
+ cryp->total_in);
+
+ ctx->rctx = rctx;
+
+ ret = starfive_sm4_hw_init(ctx);
+ if (ret)
+ return ret;
+
+ if (!cryp->assoclen)
+ goto write_text;
+
+ if ((cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_CCM)
+ ret = starfive_sm4_ccm_write_adata(ctx);
+ else
+ ret = starfive_sm4_gcm_write_adata(ctx);
+
+ kfree(rctx->adata);
+
+ if (ret)
+ return ret;
+
+write_text:
+ if (!cryp->total_in)
+ goto finish_req;
+
+ starfive_sm4_dma_init(cryp);
+
+ ret = starfive_sm4_map_sg(cryp, rctx->in_sg, rctx->out_sg);
+ if (ret)
+ return ret;
+
+finish_req:
+ starfive_sm4_finish_req(ctx);
+ return 0;
+}
+
+static int starfive_sm4_aead_init_tfm(struct crypto_aead *tfm,
+ const char *alg_name)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(tfm);
+
+ ctx->cryp = starfive_cryp_find_dev(ctx);
+ if (!ctx->cryp)
+ return -ENODEV;
+
+ ctx->aead_fbk = crypto_alloc_aead(alg_name, 0,
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(ctx->aead_fbk))
+ return dev_err_probe(ctx->cryp->dev, PTR_ERR(ctx->aead_fbk),
+ "%s() failed to allocate fallback for %s\n",
+ __func__, alg_name);
+
+ crypto_aead_set_reqsize(tfm, sizeof(struct starfive_cryp_request_ctx) +
+ crypto_aead_reqsize(ctx->aead_fbk));
+
+ return 0;
+}
+
+static void starfive_sm4_aead_exit_tfm(struct crypto_aead *tfm)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(tfm);
+
+ crypto_free_aead(ctx->aead_fbk);
+}
+
+static bool starfive_sm4_check_unaligned(struct starfive_cryp_dev *cryp,
+ struct scatterlist *src,
+ struct scatterlist *dst)
+{
+ struct scatterlist *tsg;
+ int i;
+
+ for_each_sg(src, tsg, sg_nents(src), i)
+ if (!IS_ALIGNED(tsg->length, SM4_BLOCK_SIZE) &&
+ !sg_is_last(tsg))
+ return true;
+
+ if (src != dst)
+ for_each_sg(dst, tsg, sg_nents(dst), i)
+ if (!IS_ALIGNED(tsg->length, SM4_BLOCK_SIZE) &&
+ !sg_is_last(tsg))
+ return true;
+
+ return false;
+}
+
+static int starfive_sm4_do_fallback(struct skcipher_request *req, bool enc)
+{
+ struct starfive_cryp_ctx *ctx =
+ crypto_skcipher_ctx(crypto_skcipher_reqtfm(req));
+ struct skcipher_request *subreq = skcipher_request_ctx(req);
+
+ skcipher_request_set_tfm(subreq, ctx->skcipher_fbk);
+ skcipher_request_set_callback(subreq, req->base.flags,
+ req->base.complete,
+ req->base.data);
+ skcipher_request_set_crypt(subreq, req->src, req->dst,
+ req->cryptlen, req->iv);
+
+ return enc ? crypto_skcipher_encrypt(subreq) :
+ crypto_skcipher_decrypt(subreq);
+}
+
+static int starfive_sm4_crypt(struct skcipher_request *req, unsigned long flags)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ unsigned int blocksize_align = crypto_skcipher_blocksize(tfm) - 1;
+
+ cryp->flags = flags;
+
+ if ((cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_ECB ||
+ (cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_CBC)
+ if (req->cryptlen & blocksize_align)
+ return -EINVAL;
+
+ if (starfive_sm4_check_unaligned(cryp, req->src, req->dst))
+ return starfive_sm4_do_fallback(req, is_encrypt(cryp));
+
+ return crypto_transfer_skcipher_request_to_engine(cryp->engine, req);
+}
+
+static int starfive_sm4_aead_do_fallback(struct aead_request *req, bool enc)
+{
+ struct starfive_cryp_ctx *ctx =
+ crypto_aead_ctx(crypto_aead_reqtfm(req));
+ struct aead_request *subreq = aead_request_ctx(req);
+
+ aead_request_set_tfm(subreq, ctx->aead_fbk);
+ aead_request_set_callback(subreq, req->base.flags,
+ req->base.complete,
+ req->base.data);
+ aead_request_set_crypt(subreq, req->src, req->dst,
+ req->cryptlen, req->iv);
+ aead_request_set_ad(subreq, req->assoclen);
+
+ return enc ? crypto_aead_encrypt(subreq) :
+ crypto_aead_decrypt(subreq);
+}
+
+static int starfive_sm4_aead_crypt(struct aead_request *req, unsigned long flags)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(crypto_aead_reqtfm(req));
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct scatterlist *src, *dst, _src[2], _dst[2];
+
+ cryp->flags = flags;
+
+ /* sm4-ccm does not support tag verification for non-aligned text,
+ * use fallback for ccm decryption instead.
+ */
+ if (((cryp->flags & FLG_MODE_MASK) == STARFIVE_SM4_MODE_CCM) &&
+ !is_encrypt(cryp))
+ return starfive_sm4_aead_do_fallback(req, 0);
+
+ src = scatterwalk_ffwd(_src, req->src, req->assoclen);
+
+ if (req->src == req->dst)
+ dst = src;
+ else
+ dst = scatterwalk_ffwd(_dst, req->dst, req->assoclen);
+
+ if (starfive_sm4_check_unaligned(cryp, src, dst))
+ return starfive_sm4_aead_do_fallback(req, is_encrypt(cryp));
+
+ return crypto_transfer_aead_request_to_engine(cryp->engine, req);
+}
+
+static int starfive_sm4_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct starfive_cryp_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ if (!key || !keylen)
+ return -EINVAL;
+
+ if (keylen != SM4_KEY_SIZE)
+ return -EINVAL;
+
+ memcpy(ctx->key, key, keylen);
+ ctx->keylen = keylen;
+
+ return crypto_skcipher_setkey(ctx->skcipher_fbk, key, keylen);
+}
+
+static int starfive_sm4_aead_setkey(struct crypto_aead *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(tfm);
+
+ if (!key || !keylen)
+ return -EINVAL;
+
+ if (keylen != SM4_KEY_SIZE)
+ return -EINVAL;
+
+ memcpy(ctx->key, key, keylen);
+ ctx->keylen = keylen;
+
+ return crypto_aead_setkey(ctx->aead_fbk, key, keylen);
+}
+
+static int starfive_sm4_gcm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(tfm);
+ int ret;
+
+ ret = crypto_gcm_check_authsize(authsize);
+ if (ret)
+ return ret;
+
+ return crypto_aead_setauthsize(ctx->aead_fbk, authsize);
+}
+
+static int starfive_sm4_ccm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(tfm);
+
+ switch (authsize) {
+ case 4:
+ case 6:
+ case 8:
+ case 10:
+ case 12:
+ case 14:
+ case 16:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return crypto_aead_setauthsize(ctx->aead_fbk, authsize);
+}
+
+static int starfive_sm4_ecb_encrypt(struct skcipher_request *req)
+{
+ return starfive_sm4_crypt(req, STARFIVE_SM4_MODE_ECB | FLG_ENCRYPT);
+}
+
+static int starfive_sm4_ecb_decrypt(struct skcipher_request *req)
+{
+ return starfive_sm4_crypt(req, STARFIVE_SM4_MODE_ECB);
+}
+
+static int starfive_sm4_cbc_encrypt(struct skcipher_request *req)
+{
+ return starfive_sm4_crypt(req, STARFIVE_SM4_MODE_CBC | FLG_ENCRYPT);
+}
+
+static int starfive_sm4_cbc_decrypt(struct skcipher_request *req)
+{
+ return starfive_sm4_crypt(req, STARFIVE_SM4_MODE_CBC);
+}
+
+static int starfive_sm4_ctr_encrypt(struct skcipher_request *req)
+{
+ return starfive_sm4_crypt(req, STARFIVE_SM4_MODE_CTR | FLG_ENCRYPT);
+}
+
+static int starfive_sm4_ctr_decrypt(struct skcipher_request *req)
+{
+ return starfive_sm4_crypt(req, STARFIVE_SM4_MODE_CTR);
+}
+
+static int starfive_sm4_gcm_encrypt(struct aead_request *req)
+{
+ return starfive_sm4_aead_crypt(req, STARFIVE_SM4_MODE_GCM | FLG_ENCRYPT);
+}
+
+static int starfive_sm4_gcm_decrypt(struct aead_request *req)
+{
+ return starfive_sm4_aead_crypt(req, STARFIVE_SM4_MODE_GCM);
+}
+
+static int starfive_sm4_ccm_encrypt(struct aead_request *req)
+{
+ int ret;
+
+ ret = starfive_sm4_ccm_check_iv(req->iv);
+ if (ret)
+ return ret;
+
+ return starfive_sm4_aead_crypt(req, STARFIVE_SM4_MODE_CCM | FLG_ENCRYPT);
+}
+
+static int starfive_sm4_ccm_decrypt(struct aead_request *req)
+{
+ int ret;
+
+ ret = starfive_sm4_ccm_check_iv(req->iv);
+ if (ret)
+ return ret;
+
+ return starfive_sm4_aead_crypt(req, STARFIVE_SM4_MODE_CCM);
+}
+
+static int starfive_sm4_ecb_init_tfm(struct crypto_skcipher *tfm)
+{
+ return starfive_sm4_init_tfm(tfm, "ecb(sm4-generic)");
+}
+
+static int starfive_sm4_cbc_init_tfm(struct crypto_skcipher *tfm)
+{
+ return starfive_sm4_init_tfm(tfm, "cbc(sm4-generic)");
+}
+
+static int starfive_sm4_ctr_init_tfm(struct crypto_skcipher *tfm)
+{
+ return starfive_sm4_init_tfm(tfm, "ctr(sm4-generic)");
+}
+
+static int starfive_sm4_ccm_aead_init_tfm(struct crypto_aead *tfm)
+{
+ return starfive_sm4_aead_init_tfm(tfm, "ccm_base(ctr(sm4-generic),cbcmac(sm4-generic))");
+}
+
+static int starfive_sm4_gcm_aead_init_tfm(struct crypto_aead *tfm)
+{
+ return starfive_sm4_aead_init_tfm(tfm, "gcm_base(ctr(sm4-generic),ghash-generic)");
+}
+
+static struct skcipher_engine_alg skcipher_sm4[] = {
+{
+ .base.init = starfive_sm4_ecb_init_tfm,
+ .base.exit = starfive_sm4_exit_tfm,
+ .base.setkey = starfive_sm4_setkey,
+ .base.encrypt = starfive_sm4_ecb_encrypt,
+ .base.decrypt = starfive_sm4_ecb_decrypt,
+ .base.min_keysize = SM4_KEY_SIZE,
+ .base.max_keysize = SM4_KEY_SIZE,
+ .base.base = {
+ .cra_name = "ecb(sm4)",
+ .cra_driver_name = "starfive-ecb-sm4",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_sm4_do_one_req,
+ },
+}, {
+ .base.init = starfive_sm4_ctr_init_tfm,
+ .base.exit = starfive_sm4_exit_tfm,
+ .base.setkey = starfive_sm4_setkey,
+ .base.encrypt = starfive_sm4_ctr_encrypt,
+ .base.decrypt = starfive_sm4_ctr_decrypt,
+ .base.min_keysize = SM4_KEY_SIZE,
+ .base.max_keysize = SM4_KEY_SIZE,
+ .base.ivsize = SM4_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "ctr(sm4)",
+ .cra_driver_name = "starfive-ctr-sm4",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_sm4_do_one_req,
+ },
+}, {
+ .base.init = starfive_sm4_cbc_init_tfm,
+ .base.exit = starfive_sm4_exit_tfm,
+ .base.setkey = starfive_sm4_setkey,
+ .base.encrypt = starfive_sm4_cbc_encrypt,
+ .base.decrypt = starfive_sm4_cbc_decrypt,
+ .base.min_keysize = SM4_KEY_SIZE,
+ .base.max_keysize = SM4_KEY_SIZE,
+ .base.ivsize = SM4_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "cbc(sm4)",
+ .cra_driver_name = "starfive-cbc-sm4",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_sm4_do_one_req,
+ },
+},
+};
+
+static struct aead_engine_alg aead_sm4[] = {
+{
+ .base.setkey = starfive_sm4_aead_setkey,
+ .base.setauthsize = starfive_sm4_gcm_setauthsize,
+ .base.encrypt = starfive_sm4_gcm_encrypt,
+ .base.decrypt = starfive_sm4_gcm_decrypt,
+ .base.init = starfive_sm4_gcm_aead_init_tfm,
+ .base.exit = starfive_sm4_aead_exit_tfm,
+ .base.ivsize = GCM_AES_IV_SIZE,
+ .base.maxauthsize = SM4_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "gcm(sm4)",
+ .cra_driver_name = "starfive-gcm-sm4",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_sm4_aead_do_one_req,
+ },
+}, {
+ .base.setkey = starfive_sm4_aead_setkey,
+ .base.setauthsize = starfive_sm4_ccm_setauthsize,
+ .base.encrypt = starfive_sm4_ccm_encrypt,
+ .base.decrypt = starfive_sm4_ccm_decrypt,
+ .base.init = starfive_sm4_ccm_aead_init_tfm,
+ .base.exit = starfive_sm4_aead_exit_tfm,
+ .base.ivsize = SM4_BLOCK_SIZE,
+ .base.maxauthsize = SM4_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "ccm(sm4)",
+ .cra_driver_name = "starfive-ccm-sm4",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_sm4_aead_do_one_req,
+ },
+},
+};
+
+int starfive_sm4_register_algs(void)
+{
+ int ret;
+
+ ret = crypto_engine_register_skciphers(skcipher_sm4, ARRAY_SIZE(skcipher_sm4));
+ if (ret)
+ return ret;
+
+ ret = crypto_engine_register_aeads(aead_sm4, ARRAY_SIZE(aead_sm4));
+ if (ret)
+ crypto_engine_unregister_skciphers(skcipher_sm4, ARRAY_SIZE(skcipher_sm4));
+
+ return ret;
+}
+
+void starfive_sm4_unregister_algs(void)
+{
+ crypto_engine_unregister_aeads(aead_sm4, ARRAY_SIZE(aead_sm4));
+ crypto_engine_unregister_skciphers(skcipher_sm4, ARRAY_SIZE(skcipher_sm4));
+}
--
2.43.0