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-rw-r--r--drivers/crypto/starfive/Kconfig22
-rw-r--r--drivers/crypto/starfive/Makefile4
-rw-r--r--drivers/crypto/starfive/jh7110-aes.c1024
-rw-r--r--drivers/crypto/starfive/jh7110-cryp.c279
-rw-r--r--drivers/crypto/starfive/jh7110-cryp.h236
-rw-r--r--drivers/crypto/starfive/jh7110-hash.c915
-rw-r--r--drivers/crypto/starfive/jh7110-rsa.c617
7 files changed, 3097 insertions, 0 deletions
diff --git a/drivers/crypto/starfive/Kconfig b/drivers/crypto/starfive/Kconfig
new file mode 100644
index 0000000000..2cb192502c
--- /dev/null
+++ b/drivers/crypto/starfive/Kconfig
@@ -0,0 +1,22 @@
+#
+# StarFive crypto drivers configuration
+#
+
+config CRYPTO_DEV_JH7110
+ tristate "StarFive JH7110 cryptographic engine driver"
+ depends on SOC_STARFIVE || AMBA_PL08X || COMPILE_TEST
+ depends on HAS_DMA
+ select CRYPTO_ENGINE
+ select CRYPTO_HMAC
+ select CRYPTO_SHA256
+ select CRYPTO_SHA512
+ select CRYPTO_SM3_GENERIC
+ select CRYPTO_RSA
+ select CRYPTO_AES
+ select CRYPTO_CCM
+ help
+ Support for StarFive JH7110 crypto hardware acceleration engine.
+ This module provides acceleration for public key algo,
+ skciphers, AEAD and hash functions.
+
+ If you choose 'M' here, this module will be called jh7110-crypto.
diff --git a/drivers/crypto/starfive/Makefile b/drivers/crypto/starfive/Makefile
new file mode 100644
index 0000000000..8c137afe58
--- /dev/null
+++ b/drivers/crypto/starfive/Makefile
@@ -0,0 +1,4 @@
+# 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
diff --git a/drivers/crypto/starfive/jh7110-aes.c b/drivers/crypto/starfive/jh7110-aes.c
new file mode 100644
index 0000000000..9378e6682f
--- /dev/null
+++ b/drivers/crypto/starfive/jh7110-aes.c
@@ -0,0 +1,1024 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * StarFive AES acceleration driver
+ *
+ * Copyright (c) 2022 StarFive Technology
+ */
+
+#include <crypto/engine.h>
+#include <crypto/gcm.h>
+#include <crypto/internal/aead.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/scatterwalk.h>
+#include "jh7110-cryp.h"
+#include <linux/err.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#define STARFIVE_AES_REGS_OFFSET 0x100
+#define STARFIVE_AES_AESDIO0R (STARFIVE_AES_REGS_OFFSET + 0x0)
+#define STARFIVE_AES_KEY0 (STARFIVE_AES_REGS_OFFSET + 0x4)
+#define STARFIVE_AES_KEY1 (STARFIVE_AES_REGS_OFFSET + 0x8)
+#define STARFIVE_AES_KEY2 (STARFIVE_AES_REGS_OFFSET + 0xC)
+#define STARFIVE_AES_KEY3 (STARFIVE_AES_REGS_OFFSET + 0x10)
+#define STARFIVE_AES_KEY4 (STARFIVE_AES_REGS_OFFSET + 0x14)
+#define STARFIVE_AES_KEY5 (STARFIVE_AES_REGS_OFFSET + 0x18)
+#define STARFIVE_AES_KEY6 (STARFIVE_AES_REGS_OFFSET + 0x1C)
+#define STARFIVE_AES_KEY7 (STARFIVE_AES_REGS_OFFSET + 0x20)
+#define STARFIVE_AES_CSR (STARFIVE_AES_REGS_OFFSET + 0x24)
+#define STARFIVE_AES_IV0 (STARFIVE_AES_REGS_OFFSET + 0x28)
+#define STARFIVE_AES_IV1 (STARFIVE_AES_REGS_OFFSET + 0x2C)
+#define STARFIVE_AES_IV2 (STARFIVE_AES_REGS_OFFSET + 0x30)
+#define STARFIVE_AES_IV3 (STARFIVE_AES_REGS_OFFSET + 0x34)
+#define STARFIVE_AES_NONCE0 (STARFIVE_AES_REGS_OFFSET + 0x3C)
+#define STARFIVE_AES_NONCE1 (STARFIVE_AES_REGS_OFFSET + 0x40)
+#define STARFIVE_AES_NONCE2 (STARFIVE_AES_REGS_OFFSET + 0x44)
+#define STARFIVE_AES_NONCE3 (STARFIVE_AES_REGS_OFFSET + 0x48)
+#define STARFIVE_AES_ALEN0 (STARFIVE_AES_REGS_OFFSET + 0x4C)
+#define STARFIVE_AES_ALEN1 (STARFIVE_AES_REGS_OFFSET + 0x50)
+#define STARFIVE_AES_MLEN0 (STARFIVE_AES_REGS_OFFSET + 0x54)
+#define STARFIVE_AES_MLEN1 (STARFIVE_AES_REGS_OFFSET + 0x58)
+#define STARFIVE_AES_IVLEN (STARFIVE_AES_REGS_OFFSET + 0x5C)
+
+#define FLG_MODE_MASK GENMASK(2, 0)
+#define FLG_ENCRYPT BIT(4)
+
+/* Misc */
+#define CCM_B0_ADATA 0x40
+#define AES_BLOCK_32 (AES_BLOCK_SIZE / sizeof(u32))
+
+static inline int starfive_aes_wait_busy(struct starfive_cryp_dev *cryp)
+{
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_AES_CSR, status,
+ !(status & STARFIVE_AES_BUSY), 10, 100000);
+}
+
+static inline int starfive_aes_wait_keydone(struct starfive_cryp_dev *cryp)
+{
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_AES_CSR, status,
+ (status & STARFIVE_AES_KEY_DONE), 10, 100000);
+}
+
+static inline int starfive_aes_wait_gcmdone(struct starfive_cryp_dev *cryp)
+{
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_AES_CSR, status,
+ (status & STARFIVE_AES_GCM_DONE), 10, 100000);
+}
+
+static inline int is_gcm(struct starfive_cryp_dev *cryp)
+{
+ return (cryp->flags & FLG_MODE_MASK) == STARFIVE_AES_MODE_GCM;
+}
+
+static inline int is_encrypt(struct starfive_cryp_dev *cryp)
+{
+ return cryp->flags & FLG_ENCRYPT;
+}
+
+static void starfive_aes_aead_hw_start(struct starfive_cryp_ctx *ctx, u32 hw_mode)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ unsigned int value;
+
+ switch (hw_mode) {
+ case STARFIVE_AES_MODE_GCM:
+ value = readl(ctx->cryp->base + STARFIVE_AES_CSR);
+ value |= STARFIVE_AES_GCM_START;
+ writel(value, cryp->base + STARFIVE_AES_CSR);
+ starfive_aes_wait_gcmdone(cryp);
+ break;
+ case STARFIVE_AES_MODE_CCM:
+ value = readl(ctx->cryp->base + STARFIVE_AES_CSR);
+ value |= STARFIVE_AES_CCM_START;
+ writel(value, cryp->base + STARFIVE_AES_CSR);
+ break;
+ }
+}
+
+static inline void starfive_aes_set_ivlen(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ if (is_gcm(cryp))
+ writel(GCM_AES_IV_SIZE, cryp->base + STARFIVE_AES_IVLEN);
+ else
+ writel(AES_BLOCK_SIZE, cryp->base + STARFIVE_AES_IVLEN);
+}
+
+static inline void starfive_aes_set_alen(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(upper_32_bits(cryp->assoclen), cryp->base + STARFIVE_AES_ALEN0);
+ writel(lower_32_bits(cryp->assoclen), cryp->base + STARFIVE_AES_ALEN1);
+}
+
+static inline void starfive_aes_set_mlen(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(upper_32_bits(cryp->total_in), cryp->base + STARFIVE_AES_MLEN0);
+ writel(lower_32_bits(cryp->total_in), cryp->base + STARFIVE_AES_MLEN1);
+}
+
+static inline int starfive_aes_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 int starfive_aes_write_iv(struct starfive_cryp_ctx *ctx, u32 *iv)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(iv[0], cryp->base + STARFIVE_AES_IV0);
+ writel(iv[1], cryp->base + STARFIVE_AES_IV1);
+ writel(iv[2], cryp->base + STARFIVE_AES_IV2);
+
+ if (is_gcm(cryp)) {
+ if (starfive_aes_wait_gcmdone(cryp))
+ return -ETIMEDOUT;
+
+ return 0;
+ }
+
+ writel(iv[3], cryp->base + STARFIVE_AES_IV3);
+
+ return 0;
+}
+
+static inline void starfive_aes_get_iv(struct starfive_cryp_dev *cryp, u32 *iv)
+{
+ iv[0] = readl(cryp->base + STARFIVE_AES_IV0);
+ iv[1] = readl(cryp->base + STARFIVE_AES_IV1);
+ iv[2] = readl(cryp->base + STARFIVE_AES_IV2);
+ iv[3] = readl(cryp->base + STARFIVE_AES_IV3);
+}
+
+static inline void starfive_aes_write_nonce(struct starfive_cryp_ctx *ctx, u32 *nonce)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ writel(nonce[0], cryp->base + STARFIVE_AES_NONCE0);
+ writel(nonce[1], cryp->base + STARFIVE_AES_NONCE1);
+ writel(nonce[2], cryp->base + STARFIVE_AES_NONCE2);
+ writel(nonce[3], cryp->base + STARFIVE_AES_NONCE3);
+}
+
+static int starfive_aes_write_key(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u32 *key = (u32 *)ctx->key;
+
+ if (ctx->keylen >= AES_KEYSIZE_128) {
+ writel(key[0], cryp->base + STARFIVE_AES_KEY0);
+ writel(key[1], cryp->base + STARFIVE_AES_KEY1);
+ writel(key[2], cryp->base + STARFIVE_AES_KEY2);
+ writel(key[3], cryp->base + STARFIVE_AES_KEY3);
+ }
+
+ if (ctx->keylen >= AES_KEYSIZE_192) {
+ writel(key[4], cryp->base + STARFIVE_AES_KEY4);
+ writel(key[5], cryp->base + STARFIVE_AES_KEY5);
+ }
+
+ if (ctx->keylen >= AES_KEYSIZE_256) {
+ writel(key[6], cryp->base + STARFIVE_AES_KEY6);
+ writel(key[7], cryp->base + STARFIVE_AES_KEY7);
+ }
+
+ if (starfive_aes_wait_keydone(cryp))
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int starfive_aes_ccm_init(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u8 iv[AES_BLOCK_SIZE], b0[AES_BLOCK_SIZE];
+ unsigned int textlen;
+
+ memcpy(iv, cryp->req.areq->iv, AES_BLOCK_SIZE);
+ memset(iv + AES_BLOCK_SIZE - 1 - iv[0], 0, iv[0] + 1);
+
+ /* Build B0 */
+ memcpy(b0, iv, AES_BLOCK_SIZE);
+
+ b0[0] |= (8 * ((cryp->authsize - 2) / 2));
+
+ if (cryp->assoclen)
+ b0[0] |= CCM_B0_ADATA;
+
+ textlen = cryp->total_in;
+
+ b0[AES_BLOCK_SIZE - 2] = textlen >> 8;
+ b0[AES_BLOCK_SIZE - 1] = textlen & 0xFF;
+
+ starfive_aes_write_nonce(ctx, (u32 *)b0);
+
+ return 0;
+}
+
+static int starfive_aes_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;
+
+ /* reset */
+ rctx->csr.aes.v = 0;
+ rctx->csr.aes.aesrst = 1;
+ writel(rctx->csr.aes.v, cryp->base + STARFIVE_AES_CSR);
+
+ /* csr setup */
+ hw_mode = cryp->flags & FLG_MODE_MASK;
+
+ rctx->csr.aes.v = 0;
+
+ switch (ctx->keylen) {
+ case AES_KEYSIZE_128:
+ rctx->csr.aes.keymode = STARFIVE_AES_KEYMODE_128;
+ break;
+ case AES_KEYSIZE_192:
+ rctx->csr.aes.keymode = STARFIVE_AES_KEYMODE_192;
+ break;
+ case AES_KEYSIZE_256:
+ rctx->csr.aes.keymode = STARFIVE_AES_KEYMODE_256;
+ break;
+ }
+
+ rctx->csr.aes.mode = hw_mode;
+ rctx->csr.aes.cmode = !is_encrypt(cryp);
+ rctx->csr.aes.ie = 1;
+
+ if (hw_mode == STARFIVE_AES_MODE_CFB ||
+ hw_mode == STARFIVE_AES_MODE_OFB)
+ rctx->csr.aes.stmode = STARFIVE_AES_MODE_XFB_128;
+ else
+ rctx->csr.aes.stmode = STARFIVE_AES_MODE_XFB_1;
+
+ if (cryp->side_chan) {
+ rctx->csr.aes.delay_aes = 1;
+ rctx->csr.aes.vaes_start = 1;
+ }
+
+ writel(rctx->csr.aes.v, cryp->base + STARFIVE_AES_CSR);
+
+ cryp->err = starfive_aes_write_key(ctx);
+ if (cryp->err)
+ return cryp->err;
+
+ switch (hw_mode) {
+ case STARFIVE_AES_MODE_GCM:
+ starfive_aes_set_alen(ctx);
+ starfive_aes_set_mlen(ctx);
+ starfive_aes_set_ivlen(ctx);
+ starfive_aes_aead_hw_start(ctx, hw_mode);
+ starfive_aes_write_iv(ctx, (void *)cryp->req.areq->iv);
+ break;
+ case STARFIVE_AES_MODE_CCM:
+ starfive_aes_set_alen(ctx);
+ starfive_aes_set_mlen(ctx);
+ starfive_aes_ccm_init(ctx);
+ starfive_aes_aead_hw_start(ctx, hw_mode);
+ break;
+ case STARFIVE_AES_MODE_OFB:
+ case STARFIVE_AES_MODE_CFB:
+ case STARFIVE_AES_MODE_CBC:
+ case STARFIVE_AES_MODE_CTR:
+ starfive_aes_write_iv(ctx, (void *)cryp->req.sreq->iv);
+ break;
+ default:
+ break;
+ }
+
+ return cryp->err;
+}
+
+static int starfive_aes_read_authtag(struct starfive_cryp_dev *cryp)
+{
+ int i, start_addr;
+
+ if (starfive_aes_wait_busy(cryp))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT,
+ "Timeout waiting for tag generation.");
+
+ start_addr = STARFIVE_AES_NONCE0;
+
+ if (is_gcm(cryp))
+ for (i = 0; i < AES_BLOCK_32; i++, start_addr += 4)
+ cryp->tag_out[i] = readl(cryp->base + start_addr);
+ else
+ for (i = 0; i < AES_BLOCK_32; i++)
+ cryp->tag_out[i] = readl(cryp->base + STARFIVE_AES_AESDIO0R);
+
+ if (is_encrypt(cryp)) {
+ scatterwalk_copychunks(cryp->tag_out, &cryp->out_walk, cryp->authsize, 1);
+ } else {
+ scatterwalk_copychunks(cryp->tag_in, &cryp->in_walk, cryp->authsize, 0);
+
+ 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_aes_finish_req(struct starfive_cryp_dev *cryp)
+{
+ union starfive_aes_csr csr;
+ int err = cryp->err;
+
+ if (!err && cryp->authsize)
+ err = starfive_aes_read_authtag(cryp);
+
+ if (!err && ((cryp->flags & FLG_MODE_MASK) == STARFIVE_AES_MODE_CBC ||
+ (cryp->flags & FLG_MODE_MASK) == STARFIVE_AES_MODE_CTR))
+ starfive_aes_get_iv(cryp, (void *)cryp->req.sreq->iv);
+
+ /* reset irq flags*/
+ csr.v = 0;
+ csr.aesrst = 1;
+ writel(csr.v, cryp->base + STARFIVE_AES_CSR);
+
+ if (cryp->authsize)
+ crypto_finalize_aead_request(cryp->engine, cryp->req.areq, err);
+ else
+ crypto_finalize_skcipher_request(cryp->engine, cryp->req.sreq,
+ err);
+}
+
+void starfive_aes_done_task(unsigned long param)
+{
+ struct starfive_cryp_dev *cryp = (struct starfive_cryp_dev *)param;
+ u32 block[AES_BLOCK_32];
+ u32 stat;
+ int i;
+
+ for (i = 0; i < AES_BLOCK_32; i++)
+ block[i] = readl(cryp->base + STARFIVE_AES_AESDIO0R);
+
+ scatterwalk_copychunks(block, &cryp->out_walk, min_t(size_t, AES_BLOCK_SIZE,
+ cryp->total_out), 1);
+
+ cryp->total_out -= min_t(size_t, AES_BLOCK_SIZE, cryp->total_out);
+
+ if (!cryp->total_out) {
+ starfive_aes_finish_req(cryp);
+ return;
+ }
+
+ memset(block, 0, AES_BLOCK_SIZE);
+ scatterwalk_copychunks(block, &cryp->in_walk, min_t(size_t, AES_BLOCK_SIZE,
+ cryp->total_in), 0);
+ cryp->total_in -= min_t(size_t, AES_BLOCK_SIZE, cryp->total_in);
+
+ for (i = 0; i < AES_BLOCK_32; i++)
+ writel(block[i], cryp->base + STARFIVE_AES_AESDIO0R);
+
+ stat = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);
+ stat &= ~STARFIVE_IE_MASK_AES_DONE;
+ writel(stat, cryp->base + STARFIVE_IE_MASK_OFFSET);
+}
+
+static int starfive_aes_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, AES_BLOCK_SIZE) / sizeof(unsigned int);
+ buffer = (u32 *)rctx->adata;
+
+ for (loop = 0; loop < total_len; loop += 4) {
+ writel(*buffer, cryp->base + STARFIVE_AES_NONCE0);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_AES_NONCE1);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_AES_NONCE2);
+ buffer++;
+ writel(*buffer, cryp->base + STARFIVE_AES_NONCE3);
+ buffer++;
+ }
+
+ if (starfive_aes_wait_gcmdone(cryp))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT,
+ "Timeout processing gcm aad block");
+
+ return 0;
+}
+
+static int starfive_aes_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;
+ u8 *ci;
+ int total_len, loop;
+
+ total_len = cryp->assoclen;
+
+ ci = rctx->adata;
+ writeb(*ci, cryp->base + STARFIVE_AES_AESDIO0R);
+ ci++;
+ writeb(*ci, cryp->base + STARFIVE_AES_AESDIO0R);
+ ci++;
+ total_len -= 2;
+ buffer = (u32 *)ci;
+
+ for (loop = 0; loop < 3; loop++, buffer++)
+ writel(*buffer, cryp->base + STARFIVE_AES_AESDIO0R);
+
+ total_len -= 12;
+
+ while (total_len > 0) {
+ for (loop = 0; loop < AES_BLOCK_32; loop++, buffer++)
+ writel(*buffer, cryp->base + STARFIVE_AES_AESDIO0R);
+
+ total_len -= AES_BLOCK_SIZE;
+ }
+
+ if (starfive_aes_wait_busy(cryp))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT,
+ "Timeout processing ccm aad block");
+
+ return 0;
+}
+
+static int starfive_aes_prepare_req(struct skcipher_request *req,
+ struct aead_request *areq)
+{
+ struct starfive_cryp_ctx *ctx;
+ struct starfive_cryp_request_ctx *rctx;
+ struct starfive_cryp_dev *cryp;
+
+ if (!req && !areq)
+ return -EINVAL;
+
+ ctx = req ? crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)) :
+ crypto_aead_ctx(crypto_aead_reqtfm(areq));
+
+ cryp = ctx->cryp;
+ rctx = req ? skcipher_request_ctx(req) : aead_request_ctx(areq);
+
+ if (req) {
+ cryp->req.sreq = req;
+ cryp->total_in = req->cryptlen;
+ cryp->total_out = req->cryptlen;
+ cryp->assoclen = 0;
+ cryp->authsize = 0;
+ } else {
+ cryp->req.areq = areq;
+ cryp->assoclen = areq->assoclen;
+ cryp->authsize = crypto_aead_authsize(crypto_aead_reqtfm(areq));
+ if (is_encrypt(cryp)) {
+ cryp->total_in = areq->cryptlen;
+ cryp->total_out = areq->cryptlen;
+ } else {
+ cryp->total_in = areq->cryptlen - cryp->authsize;
+ cryp->total_out = cryp->total_in;
+ }
+ }
+
+ rctx->in_sg = req ? req->src : areq->src;
+ scatterwalk_start(&cryp->in_walk, rctx->in_sg);
+
+ rctx->out_sg = req ? req->dst : areq->dst;
+ scatterwalk_start(&cryp->out_walk, rctx->out_sg);
+
+ if (cryp->assoclen) {
+ rctx->adata = kzalloc(ALIGN(cryp->assoclen, AES_BLOCK_SIZE), GFP_KERNEL);
+ if (!rctx->adata)
+ return dev_err_probe(cryp->dev, -ENOMEM,
+ "Failed to alloc memory for adata");
+
+ scatterwalk_copychunks(rctx->adata, &cryp->in_walk, cryp->assoclen, 0);
+ scatterwalk_copychunks(NULL, &cryp->out_walk, cryp->assoclen, 2);
+ }
+
+ ctx->rctx = rctx;
+
+ return starfive_aes_hw_init(ctx);
+}
+
+static int starfive_aes_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;
+ u32 block[AES_BLOCK_32];
+ u32 stat;
+ int err;
+ int i;
+
+ err = starfive_aes_prepare_req(req, NULL);
+ if (err)
+ return err;
+
+ /*
+ * Write first plain/ciphertext block to start the module
+ * then let irq tasklet handle the rest of the data blocks.
+ */
+ scatterwalk_copychunks(block, &cryp->in_walk, min_t(size_t, AES_BLOCK_SIZE,
+ cryp->total_in), 0);
+ cryp->total_in -= min_t(size_t, AES_BLOCK_SIZE, cryp->total_in);
+
+ for (i = 0; i < AES_BLOCK_32; i++)
+ writel(block[i], cryp->base + STARFIVE_AES_AESDIO0R);
+
+ stat = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);
+ stat &= ~STARFIVE_IE_MASK_AES_DONE;
+ writel(stat, cryp->base + STARFIVE_IE_MASK_OFFSET);
+
+ return 0;
+}
+
+static int starfive_aes_init_tfm(struct crypto_skcipher *tfm)
+{
+ struct starfive_cryp_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ ctx->cryp = starfive_cryp_find_dev(ctx);
+ if (!ctx->cryp)
+ return -ENODEV;
+
+ crypto_skcipher_set_reqsize(tfm, sizeof(struct starfive_cryp_request_ctx) +
+ sizeof(struct skcipher_request));
+
+ return 0;
+}
+
+static int starfive_aes_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 = ctx->rctx;
+ u32 block[AES_BLOCK_32];
+ u32 stat;
+ int err;
+ int i;
+
+ err = starfive_aes_prepare_req(NULL, req);
+ if (err)
+ return err;
+
+ if (!cryp->assoclen)
+ goto write_text;
+
+ if ((cryp->flags & FLG_MODE_MASK) == STARFIVE_AES_MODE_CCM)
+ cryp->err = starfive_aes_ccm_write_adata(ctx);
+ else
+ cryp->err = starfive_aes_gcm_write_adata(ctx);
+
+ kfree(rctx->adata);
+
+ if (cryp->err)
+ return cryp->err;
+
+write_text:
+ if (!cryp->total_in)
+ goto finish_req;
+
+ /*
+ * Write first plain/ciphertext block to start the module
+ * then let irq tasklet handle the rest of the data blocks.
+ */
+ scatterwalk_copychunks(block, &cryp->in_walk, min_t(size_t, AES_BLOCK_SIZE,
+ cryp->total_in), 0);
+ cryp->total_in -= min_t(size_t, AES_BLOCK_SIZE, cryp->total_in);
+
+ for (i = 0; i < AES_BLOCK_32; i++)
+ writel(block[i], cryp->base + STARFIVE_AES_AESDIO0R);
+
+ stat = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);
+ stat &= ~STARFIVE_IE_MASK_AES_DONE;
+ writel(stat, cryp->base + STARFIVE_IE_MASK_OFFSET);
+
+ return 0;
+
+finish_req:
+ starfive_aes_finish_req(cryp);
+ return 0;
+}
+
+static int starfive_aes_aead_init_tfm(struct crypto_aead *tfm)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(tfm);
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct crypto_tfm *aead = crypto_aead_tfm(tfm);
+ struct crypto_alg *alg = aead->__crt_alg;
+
+ ctx->cryp = starfive_cryp_find_dev(ctx);
+ if (!ctx->cryp)
+ return -ENODEV;
+
+ if (alg->cra_flags & CRYPTO_ALG_NEED_FALLBACK) {
+ ctx->aead_fbk = crypto_alloc_aead(alg->cra_name, 0,
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(ctx->aead_fbk))
+ return dev_err_probe(cryp->dev, PTR_ERR(ctx->aead_fbk),
+ "%s() failed to allocate fallback for %s\n",
+ __func__, alg->cra_name);
+ }
+
+ crypto_aead_set_reqsize(tfm, sizeof(struct starfive_cryp_ctx) +
+ sizeof(struct aead_request));
+
+ return 0;
+}
+
+static void starfive_aes_aead_exit_tfm(struct crypto_aead *tfm)
+{
+ struct starfive_cryp_ctx *ctx = crypto_aead_ctx(tfm);
+
+ crypto_free_aead(ctx->aead_fbk);
+}
+
+static int starfive_aes_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_AES_MODE_ECB ||
+ (cryp->flags & FLG_MODE_MASK) == STARFIVE_AES_MODE_CBC)
+ if (req->cryptlen & blocksize_align)
+ return -EINVAL;
+
+ return crypto_transfer_skcipher_request_to_engine(cryp->engine, req);
+}
+
+static int starfive_aes_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;
+
+ cryp->flags = flags;
+
+ /*
+ * HW engine could not perform CCM tag verification on
+ * non-blocksize aligned text, use fallback algo instead
+ */
+ if (ctx->aead_fbk && !is_encrypt(cryp)) {
+ 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 crypto_aead_decrypt(subreq);
+ }
+
+ return crypto_transfer_aead_request_to_engine(cryp->engine, req);
+}
+
+static int starfive_aes_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 != AES_KEYSIZE_128 &&
+ keylen != AES_KEYSIZE_192 &&
+ keylen != AES_KEYSIZE_256)
+ return -EINVAL;
+
+ memcpy(ctx->key, key, keylen);
+ ctx->keylen = keylen;
+
+ return 0;
+}
+
+static int starfive_aes_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 != AES_KEYSIZE_128 &&
+ keylen != AES_KEYSIZE_192 &&
+ keylen != AES_KEYSIZE_256)
+ return -EINVAL;
+
+ memcpy(ctx->key, key, keylen);
+ ctx->keylen = keylen;
+
+ if (ctx->aead_fbk)
+ return crypto_aead_setkey(ctx->aead_fbk, key, keylen);
+
+ return 0;
+}
+
+static int starfive_aes_gcm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ return crypto_gcm_check_authsize(authsize);
+}
+
+static int starfive_aes_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_aes_ecb_encrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_ECB | FLG_ENCRYPT);
+}
+
+static int starfive_aes_ecb_decrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_ECB);
+}
+
+static int starfive_aes_cbc_encrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_CBC | FLG_ENCRYPT);
+}
+
+static int starfive_aes_cbc_decrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_CBC);
+}
+
+static int starfive_aes_cfb_encrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_CFB | FLG_ENCRYPT);
+}
+
+static int starfive_aes_cfb_decrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_CFB);
+}
+
+static int starfive_aes_ofb_encrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_OFB | FLG_ENCRYPT);
+}
+
+static int starfive_aes_ofb_decrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_OFB);
+}
+
+static int starfive_aes_ctr_encrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_CTR | FLG_ENCRYPT);
+}
+
+static int starfive_aes_ctr_decrypt(struct skcipher_request *req)
+{
+ return starfive_aes_crypt(req, STARFIVE_AES_MODE_CTR);
+}
+
+static int starfive_aes_gcm_encrypt(struct aead_request *req)
+{
+ return starfive_aes_aead_crypt(req, STARFIVE_AES_MODE_GCM | FLG_ENCRYPT);
+}
+
+static int starfive_aes_gcm_decrypt(struct aead_request *req)
+{
+ return starfive_aes_aead_crypt(req, STARFIVE_AES_MODE_GCM);
+}
+
+static int starfive_aes_ccm_encrypt(struct aead_request *req)
+{
+ int ret;
+
+ ret = starfive_aes_ccm_check_iv(req->iv);
+ if (ret)
+ return ret;
+
+ return starfive_aes_aead_crypt(req, STARFIVE_AES_MODE_CCM | FLG_ENCRYPT);
+}
+
+static int starfive_aes_ccm_decrypt(struct aead_request *req)
+{
+ int ret;
+
+ ret = starfive_aes_ccm_check_iv(req->iv);
+ if (ret)
+ return ret;
+
+ return starfive_aes_aead_crypt(req, STARFIVE_AES_MODE_CCM);
+}
+
+static struct skcipher_engine_alg skcipher_algs[] = {
+{
+ .base.init = starfive_aes_init_tfm,
+ .base.setkey = starfive_aes_setkey,
+ .base.encrypt = starfive_aes_ecb_encrypt,
+ .base.decrypt = starfive_aes_ecb_decrypt,
+ .base.min_keysize = AES_MIN_KEY_SIZE,
+ .base.max_keysize = AES_MAX_KEY_SIZE,
+ .base.base = {
+ .cra_name = "ecb(aes)",
+ .cra_driver_name = "starfive-ecb-aes",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_aes_do_one_req,
+ },
+}, {
+ .base.init = starfive_aes_init_tfm,
+ .base.setkey = starfive_aes_setkey,
+ .base.encrypt = starfive_aes_cbc_encrypt,
+ .base.decrypt = starfive_aes_cbc_decrypt,
+ .base.min_keysize = AES_MIN_KEY_SIZE,
+ .base.max_keysize = AES_MAX_KEY_SIZE,
+ .base.ivsize = AES_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "cbc(aes)",
+ .cra_driver_name = "starfive-cbc-aes",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_aes_do_one_req,
+ },
+}, {
+ .base.init = starfive_aes_init_tfm,
+ .base.setkey = starfive_aes_setkey,
+ .base.encrypt = starfive_aes_ctr_encrypt,
+ .base.decrypt = starfive_aes_ctr_decrypt,
+ .base.min_keysize = AES_MIN_KEY_SIZE,
+ .base.max_keysize = AES_MAX_KEY_SIZE,
+ .base.ivsize = AES_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "ctr(aes)",
+ .cra_driver_name = "starfive-ctr-aes",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_aes_do_one_req,
+ },
+}, {
+ .base.init = starfive_aes_init_tfm,
+ .base.setkey = starfive_aes_setkey,
+ .base.encrypt = starfive_aes_cfb_encrypt,
+ .base.decrypt = starfive_aes_cfb_decrypt,
+ .base.min_keysize = AES_MIN_KEY_SIZE,
+ .base.max_keysize = AES_MAX_KEY_SIZE,
+ .base.ivsize = AES_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "cfb(aes)",
+ .cra_driver_name = "starfive-cfb-aes",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_aes_do_one_req,
+ },
+}, {
+ .base.init = starfive_aes_init_tfm,
+ .base.setkey = starfive_aes_setkey,
+ .base.encrypt = starfive_aes_ofb_encrypt,
+ .base.decrypt = starfive_aes_ofb_decrypt,
+ .base.min_keysize = AES_MIN_KEY_SIZE,
+ .base.max_keysize = AES_MAX_KEY_SIZE,
+ .base.ivsize = AES_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "ofb(aes)",
+ .cra_driver_name = "starfive-ofb-aes",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_aes_do_one_req,
+ },
+},
+};
+
+static struct aead_engine_alg aead_algs[] = {
+{
+ .base.setkey = starfive_aes_aead_setkey,
+ .base.setauthsize = starfive_aes_gcm_setauthsize,
+ .base.encrypt = starfive_aes_gcm_encrypt,
+ .base.decrypt = starfive_aes_gcm_decrypt,
+ .base.init = starfive_aes_aead_init_tfm,
+ .base.exit = starfive_aes_aead_exit_tfm,
+ .base.ivsize = GCM_AES_IV_SIZE,
+ .base.maxauthsize = AES_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "gcm(aes)",
+ .cra_driver_name = "starfive-gcm-aes",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 0xf,
+ .cra_module = THIS_MODULE,
+ },
+ .op = {
+ .do_one_request = starfive_aes_aead_do_one_req,
+ },
+}, {
+ .base.setkey = starfive_aes_aead_setkey,
+ .base.setauthsize = starfive_aes_ccm_setauthsize,
+ .base.encrypt = starfive_aes_ccm_encrypt,
+ .base.decrypt = starfive_aes_ccm_decrypt,
+ .base.init = starfive_aes_aead_init_tfm,
+ .base.exit = starfive_aes_aead_exit_tfm,
+ .base.ivsize = AES_BLOCK_SIZE,
+ .base.maxauthsize = AES_BLOCK_SIZE,
+ .base.base = {
+ .cra_name = "ccm(aes)",
+ .cra_driver_name = "starfive-ccm-aes",
+ .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_aes_aead_do_one_req,
+ },
+},
+};
+
+int starfive_aes_register_algs(void)
+{
+ int ret;
+
+ ret = crypto_engine_register_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs));
+ if (ret)
+ return ret;
+
+ ret = crypto_engine_register_aeads(aead_algs, ARRAY_SIZE(aead_algs));
+ if (ret)
+ crypto_engine_unregister_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs));
+
+ return ret;
+}
+
+void starfive_aes_unregister_algs(void)
+{
+ crypto_engine_unregister_aeads(aead_algs, ARRAY_SIZE(aead_algs));
+ crypto_engine_unregister_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs));
+}
diff --git a/drivers/crypto/starfive/jh7110-cryp.c b/drivers/crypto/starfive/jh7110-cryp.c
new file mode 100644
index 0000000000..3a67ddc4d9
--- /dev/null
+++ b/drivers/crypto/starfive/jh7110-cryp.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Cryptographic API.
+ *
+ * Support for StarFive hardware cryptographic engine.
+ * Copyright (c) 2022 StarFive Technology
+ *
+ */
+
+#include <crypto/engine.h>
+#include "jh7110-cryp.h"
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+#include <linux/spinlock.h>
+
+#define DRIVER_NAME "jh7110-crypto"
+
+struct starfive_dev_list {
+ struct list_head dev_list;
+ spinlock_t lock; /* protect dev_list */
+};
+
+static struct starfive_dev_list dev_list = {
+ .dev_list = LIST_HEAD_INIT(dev_list.dev_list),
+ .lock = __SPIN_LOCK_UNLOCKED(dev_list.lock),
+};
+
+struct starfive_cryp_dev *starfive_cryp_find_dev(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = NULL, *tmp;
+
+ spin_lock_bh(&dev_list.lock);
+ if (!ctx->cryp) {
+ list_for_each_entry(tmp, &dev_list.dev_list, list) {
+ cryp = tmp;
+ break;
+ }
+ ctx->cryp = cryp;
+ } else {
+ cryp = ctx->cryp;
+ }
+
+ spin_unlock_bh(&dev_list.lock);
+
+ return cryp;
+}
+
+static u16 side_chan;
+module_param(side_chan, ushort, 0);
+MODULE_PARM_DESC(side_chan, "Enable side channel mitigation for AES module.\n"
+ "Enabling this feature will reduce speed performance.\n"
+ " 0 - Disabled\n"
+ " other - Enabled");
+
+static int starfive_dma_init(struct starfive_cryp_dev *cryp)
+{
+ dma_cap_mask_t mask;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+
+ cryp->tx = dma_request_chan(cryp->dev, "tx");
+ if (IS_ERR(cryp->tx))
+ return dev_err_probe(cryp->dev, PTR_ERR(cryp->tx),
+ "Error requesting tx dma channel.\n");
+
+ cryp->rx = dma_request_chan(cryp->dev, "rx");
+ if (IS_ERR(cryp->rx)) {
+ dma_release_channel(cryp->tx);
+ return dev_err_probe(cryp->dev, PTR_ERR(cryp->rx),
+ "Error requesting rx dma channel.\n");
+ }
+
+ return 0;
+}
+
+static void starfive_dma_cleanup(struct starfive_cryp_dev *cryp)
+{
+ dma_release_channel(cryp->tx);
+ dma_release_channel(cryp->rx);
+}
+
+static irqreturn_t starfive_cryp_irq(int irq, void *priv)
+{
+ u32 status;
+ u32 mask;
+ struct starfive_cryp_dev *cryp = (struct starfive_cryp_dev *)priv;
+
+ mask = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);
+ status = readl(cryp->base + STARFIVE_IE_FLAG_OFFSET);
+ if (status & STARFIVE_IE_FLAG_AES_DONE) {
+ mask |= STARFIVE_IE_MASK_AES_DONE;
+ writel(mask, cryp->base + STARFIVE_IE_MASK_OFFSET);
+ tasklet_schedule(&cryp->aes_done);
+ }
+
+ if (status & STARFIVE_IE_FLAG_HASH_DONE) {
+ mask |= STARFIVE_IE_MASK_HASH_DONE;
+ writel(mask, cryp->base + STARFIVE_IE_MASK_OFFSET);
+ tasklet_schedule(&cryp->hash_done);
+ }
+
+ if (status & STARFIVE_IE_FLAG_PKA_DONE) {
+ mask |= STARFIVE_IE_MASK_PKA_DONE;
+ writel(mask, cryp->base + STARFIVE_IE_MASK_OFFSET);
+ complete(&cryp->pka_done);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int starfive_cryp_probe(struct platform_device *pdev)
+{
+ struct starfive_cryp_dev *cryp;
+ struct resource *res;
+ int irq;
+ int ret;
+
+ cryp = devm_kzalloc(&pdev->dev, sizeof(*cryp), GFP_KERNEL);
+ if (!cryp)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, cryp);
+ cryp->dev = &pdev->dev;
+
+ cryp->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+ if (IS_ERR(cryp->base))
+ return dev_err_probe(&pdev->dev, PTR_ERR(cryp->base),
+ "Error remapping memory for platform device\n");
+
+ tasklet_init(&cryp->aes_done, starfive_aes_done_task, (unsigned long)cryp);
+ tasklet_init(&cryp->hash_done, starfive_hash_done_task, (unsigned long)cryp);
+
+ cryp->phys_base = res->start;
+ cryp->dma_maxburst = 32;
+ cryp->side_chan = side_chan;
+
+ cryp->hclk = devm_clk_get(&pdev->dev, "hclk");
+ if (IS_ERR(cryp->hclk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(cryp->hclk),
+ "Error getting hardware reference clock\n");
+
+ cryp->ahb = devm_clk_get(&pdev->dev, "ahb");
+ if (IS_ERR(cryp->ahb))
+ return dev_err_probe(&pdev->dev, PTR_ERR(cryp->ahb),
+ "Error getting ahb reference clock\n");
+
+ cryp->rst = devm_reset_control_get_shared(cryp->dev, NULL);
+ if (IS_ERR(cryp->rst))
+ return dev_err_probe(&pdev->dev, PTR_ERR(cryp->rst),
+ "Error getting hardware reset line\n");
+
+ init_completion(&cryp->pka_done);
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ ret = devm_request_irq(&pdev->dev, irq, starfive_cryp_irq, 0, pdev->name,
+ (void *)cryp);
+ if (ret)
+ return dev_err_probe(&pdev->dev, irq,
+ "Failed to register interrupt handler\n");
+
+ clk_prepare_enable(cryp->hclk);
+ clk_prepare_enable(cryp->ahb);
+ reset_control_deassert(cryp->rst);
+
+ spin_lock(&dev_list.lock);
+ list_add(&cryp->list, &dev_list.dev_list);
+ spin_unlock(&dev_list.lock);
+
+ ret = starfive_dma_init(cryp);
+ if (ret)
+ goto err_dma_init;
+
+ /* Initialize crypto engine */
+ cryp->engine = crypto_engine_alloc_init(&pdev->dev, 1);
+ if (!cryp->engine) {
+ ret = -ENOMEM;
+ goto err_engine;
+ }
+
+ ret = crypto_engine_start(cryp->engine);
+ if (ret)
+ goto err_engine_start;
+
+ ret = starfive_aes_register_algs();
+ if (ret)
+ goto err_algs_aes;
+
+ ret = starfive_hash_register_algs();
+ if (ret)
+ goto err_algs_hash;
+
+ ret = starfive_rsa_register_algs();
+ if (ret)
+ goto err_algs_rsa;
+
+ return 0;
+
+err_algs_rsa:
+ starfive_hash_unregister_algs();
+err_algs_hash:
+ starfive_aes_unregister_algs();
+err_algs_aes:
+ crypto_engine_stop(cryp->engine);
+err_engine_start:
+ crypto_engine_exit(cryp->engine);
+err_engine:
+ starfive_dma_cleanup(cryp);
+err_dma_init:
+ spin_lock(&dev_list.lock);
+ list_del(&cryp->list);
+ spin_unlock(&dev_list.lock);
+
+ clk_disable_unprepare(cryp->hclk);
+ clk_disable_unprepare(cryp->ahb);
+ reset_control_assert(cryp->rst);
+
+ tasklet_kill(&cryp->aes_done);
+ tasklet_kill(&cryp->hash_done);
+
+ return ret;
+}
+
+static void starfive_cryp_remove(struct platform_device *pdev)
+{
+ struct starfive_cryp_dev *cryp = platform_get_drvdata(pdev);
+
+ starfive_aes_unregister_algs();
+ starfive_hash_unregister_algs();
+ starfive_rsa_unregister_algs();
+
+ tasklet_kill(&cryp->aes_done);
+ tasklet_kill(&cryp->hash_done);
+
+ crypto_engine_stop(cryp->engine);
+ crypto_engine_exit(cryp->engine);
+
+ starfive_dma_cleanup(cryp);
+
+ spin_lock(&dev_list.lock);
+ list_del(&cryp->list);
+ spin_unlock(&dev_list.lock);
+
+ clk_disable_unprepare(cryp->hclk);
+ clk_disable_unprepare(cryp->ahb);
+ reset_control_assert(cryp->rst);
+}
+
+static const struct of_device_id starfive_dt_ids[] __maybe_unused = {
+ { .compatible = "starfive,jh7110-crypto", .data = NULL},
+ {},
+};
+MODULE_DEVICE_TABLE(of, starfive_dt_ids);
+
+static struct platform_driver starfive_cryp_driver = {
+ .probe = starfive_cryp_probe,
+ .remove_new = starfive_cryp_remove,
+ .driver = {
+ .name = DRIVER_NAME,
+ .of_match_table = starfive_dt_ids,
+ },
+};
+
+module_platform_driver(starfive_cryp_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("StarFive JH7110 Cryptographic Module");
diff --git a/drivers/crypto/starfive/jh7110-cryp.h b/drivers/crypto/starfive/jh7110-cryp.h
new file mode 100644
index 0000000000..fe011d5047
--- /dev/null
+++ b/drivers/crypto/starfive/jh7110-cryp.h
@@ -0,0 +1,236 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __STARFIVE_STR_H__
+#define __STARFIVE_STR_H__
+
+#include <crypto/aes.h>
+#include <crypto/hash.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/sha2.h>
+#include <crypto/sm3.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/interrupt.h>
+
+#define STARFIVE_ALG_CR_OFFSET 0x0
+#define STARFIVE_ALG_FIFO_OFFSET 0x4
+#define STARFIVE_IE_MASK_OFFSET 0x8
+#define STARFIVE_IE_FLAG_OFFSET 0xc
+#define STARFIVE_DMA_IN_LEN_OFFSET 0x10
+#define STARFIVE_DMA_OUT_LEN_OFFSET 0x14
+
+#define STARFIVE_IE_MASK_AES_DONE 0x1
+#define STARFIVE_IE_MASK_HASH_DONE 0x4
+#define STARFIVE_IE_MASK_PKA_DONE 0x8
+#define STARFIVE_IE_FLAG_AES_DONE 0x1
+#define STARFIVE_IE_FLAG_HASH_DONE 0x4
+#define STARFIVE_IE_FLAG_PKA_DONE 0x8
+
+#define STARFIVE_MSG_BUFFER_SIZE SZ_16K
+#define MAX_KEY_SIZE SHA512_BLOCK_SIZE
+#define STARFIVE_AES_IV_LEN AES_BLOCK_SIZE
+#define STARFIVE_AES_CTR_LEN AES_BLOCK_SIZE
+
+union starfive_aes_csr {
+ u32 v;
+ struct {
+ u32 cmode :1;
+#define STARFIVE_AES_KEYMODE_128 0x0
+#define STARFIVE_AES_KEYMODE_192 0x1
+#define STARFIVE_AES_KEYMODE_256 0x2
+ u32 keymode :2;
+#define STARFIVE_AES_BUSY BIT(3)
+ u32 busy :1;
+ u32 done :1;
+#define STARFIVE_AES_KEY_DONE BIT(5)
+ u32 krdy :1;
+ u32 aesrst :1;
+ u32 ie :1;
+#define STARFIVE_AES_CCM_START BIT(8)
+ u32 ccm_start :1;
+#define STARFIVE_AES_MODE_ECB 0x0
+#define STARFIVE_AES_MODE_CBC 0x1
+#define STARFIVE_AES_MODE_CFB 0x2
+#define STARFIVE_AES_MODE_OFB 0x3
+#define STARFIVE_AES_MODE_CTR 0x4
+#define STARFIVE_AES_MODE_CCM 0x5
+#define STARFIVE_AES_MODE_GCM 0x6
+ u32 mode :3;
+#define STARFIVE_AES_GCM_START BIT(12)
+ u32 gcm_start :1;
+#define STARFIVE_AES_GCM_DONE BIT(13)
+ u32 gcm_done :1;
+ u32 delay_aes :1;
+ u32 vaes_start :1;
+ u32 rsvd_0 :8;
+#define STARFIVE_AES_MODE_XFB_1 0x0
+#define STARFIVE_AES_MODE_XFB_128 0x5
+ u32 stmode :3;
+ u32 rsvd_1 :5;
+ };
+};
+
+union starfive_hash_csr {
+ u32 v;
+ struct {
+ u32 start :1;
+ u32 reset :1;
+ u32 ie :1;
+ u32 firstb :1;
+#define STARFIVE_HASH_SM3 0x0
+#define STARFIVE_HASH_SHA224 0x3
+#define STARFIVE_HASH_SHA256 0x4
+#define STARFIVE_HASH_SHA384 0x5
+#define STARFIVE_HASH_SHA512 0x6
+#define STARFIVE_HASH_MODE_MASK 0x7
+ u32 mode :3;
+ u32 rsvd_1 :1;
+ u32 final :1;
+ u32 rsvd_2 :2;
+#define STARFIVE_HASH_HMAC_FLAGS 0x800
+ u32 hmac :1;
+ u32 rsvd_3 :1;
+#define STARFIVE_HASH_KEY_DONE BIT(13)
+ u32 key_done :1;
+ u32 key_flag :1;
+ u32 hmac_done :1;
+#define STARFIVE_HASH_BUSY BIT(16)
+ u32 busy :1;
+ u32 hashdone :1;
+ u32 rsvd_4 :14;
+ };
+};
+
+union starfive_pka_cacr {
+ u32 v;
+ struct {
+ u32 start :1;
+ u32 reset :1;
+ u32 ie :1;
+ u32 rsvd_0 :1;
+ u32 fifo_mode :1;
+ u32 not_r2 :1;
+ u32 ecc_sub :1;
+ u32 pre_expf :1;
+ u32 cmd :4;
+ u32 rsvd_1 :1;
+ u32 ctrl_dummy :1;
+ u32 ctrl_false :1;
+ u32 cln_done :1;
+ u32 opsize :6;
+ u32 rsvd_2 :2;
+ u32 exposize :6;
+ u32 rsvd_3 :1;
+ u32 bigendian :1;
+ };
+};
+
+struct starfive_rsa_key {
+ u8 *n;
+ u8 *e;
+ u8 *d;
+ int e_bitlen;
+ int d_bitlen;
+ int bitlen;
+ size_t key_sz;
+};
+
+union starfive_alg_cr {
+ u32 v;
+ struct {
+ u32 start :1;
+ u32 aes_dma_en :1;
+ u32 rsvd_0 :1;
+ u32 hash_dma_en :1;
+ u32 alg_done :1;
+ u32 rsvd_1 :3;
+ u32 clear :1;
+ u32 rsvd_2 :23;
+ };
+};
+
+struct starfive_cryp_ctx {
+ struct starfive_cryp_dev *cryp;
+ struct starfive_cryp_request_ctx *rctx;
+
+ unsigned int hash_mode;
+ u8 key[MAX_KEY_SIZE];
+ int keylen;
+ bool is_hmac;
+ struct starfive_rsa_key rsa_key;
+ struct crypto_akcipher *akcipher_fbk;
+ struct crypto_ahash *ahash_fbk;
+ struct crypto_aead *aead_fbk;
+};
+
+struct starfive_cryp_dev {
+ struct list_head list;
+ struct device *dev;
+ struct clk *hclk;
+ struct clk *ahb;
+ struct reset_control *rst;
+
+ void __iomem *base;
+ phys_addr_t phys_base;
+
+ u32 dma_maxburst;
+ struct dma_chan *tx;
+ struct dma_chan *rx;
+ struct dma_slave_config cfg_in;
+ struct dma_slave_config cfg_out;
+ struct scatter_walk in_walk;
+ struct scatter_walk out_walk;
+ struct crypto_engine *engine;
+ struct tasklet_struct aes_done;
+ struct tasklet_struct hash_done;
+ struct completion pka_done;
+ size_t assoclen;
+ size_t total_in;
+ size_t total_out;
+ u32 tag_in[4];
+ u32 tag_out[4];
+ unsigned int authsize;
+ unsigned long flags;
+ int err;
+ bool side_chan;
+ union starfive_alg_cr alg_cr;
+ union {
+ struct ahash_request *hreq;
+ struct aead_request *areq;
+ struct skcipher_request *sreq;
+ } req;
+};
+
+struct starfive_cryp_request_ctx {
+ union {
+ union starfive_hash_csr hash;
+ union starfive_pka_cacr pka;
+ union starfive_aes_csr aes;
+ } csr;
+
+ struct scatterlist *in_sg;
+ struct scatterlist *out_sg;
+ struct ahash_request ahash_fbk_req;
+ size_t total;
+ size_t nents;
+ unsigned int blksize;
+ unsigned int digsize;
+ unsigned long in_sg_len;
+ unsigned char *adata;
+ u8 rsa_data[] __aligned(sizeof(u32));
+};
+
+struct starfive_cryp_dev *starfive_cryp_find_dev(struct starfive_cryp_ctx *ctx);
+
+int starfive_hash_register_algs(void);
+void starfive_hash_unregister_algs(void);
+
+int starfive_rsa_register_algs(void);
+void starfive_rsa_unregister_algs(void);
+
+int starfive_aes_register_algs(void);
+void starfive_aes_unregister_algs(void);
+
+void starfive_hash_done_task(unsigned long param);
+void starfive_aes_done_task(unsigned long param);
+#endif
diff --git a/drivers/crypto/starfive/jh7110-hash.c b/drivers/crypto/starfive/jh7110-hash.c
new file mode 100644
index 0000000000..cc7650198d
--- /dev/null
+++ b/drivers/crypto/starfive/jh7110-hash.c
@@ -0,0 +1,915 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hash function and HMAC support for StarFive driver
+ *
+ * Copyright (c) 2022 StarFive Technology
+ *
+ */
+
+#include <crypto/engine.h>
+#include <crypto/internal/hash.h>
+#include <crypto/scatterwalk.h>
+#include "jh7110-cryp.h"
+#include <linux/amba/pl080.h>
+#include <linux/clk.h>
+#include <linux/dma-direct.h>
+#include <linux/interrupt.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#define STARFIVE_HASH_REGS_OFFSET 0x300
+#define STARFIVE_HASH_SHACSR (STARFIVE_HASH_REGS_OFFSET + 0x0)
+#define STARFIVE_HASH_SHAWDR (STARFIVE_HASH_REGS_OFFSET + 0x4)
+#define STARFIVE_HASH_SHARDR (STARFIVE_HASH_REGS_OFFSET + 0x8)
+#define STARFIVE_HASH_SHAWSR (STARFIVE_HASH_REGS_OFFSET + 0xC)
+#define STARFIVE_HASH_SHAWLEN3 (STARFIVE_HASH_REGS_OFFSET + 0x10)
+#define STARFIVE_HASH_SHAWLEN2 (STARFIVE_HASH_REGS_OFFSET + 0x14)
+#define STARFIVE_HASH_SHAWLEN1 (STARFIVE_HASH_REGS_OFFSET + 0x18)
+#define STARFIVE_HASH_SHAWLEN0 (STARFIVE_HASH_REGS_OFFSET + 0x1C)
+#define STARFIVE_HASH_SHAWKR (STARFIVE_HASH_REGS_OFFSET + 0x20)
+#define STARFIVE_HASH_SHAWKLEN (STARFIVE_HASH_REGS_OFFSET + 0x24)
+
+#define STARFIVE_HASH_BUFLEN SHA512_BLOCK_SIZE
+#define STARFIVE_HASH_RESET 0x2
+
+static inline int starfive_hash_wait_busy(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, status,
+ !(status & STARFIVE_HASH_BUSY), 10, 100000);
+}
+
+static inline int starfive_hash_wait_key_done(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u32 status;
+
+ return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, status,
+ (status & STARFIVE_HASH_KEY_DONE), 10, 100000);
+}
+
+static int starfive_hash_hmac_key(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ int klen = ctx->keylen, loop;
+ unsigned int *key = (unsigned int *)ctx->key;
+ unsigned char *cl;
+
+ writel(ctx->keylen, cryp->base + STARFIVE_HASH_SHAWKLEN);
+
+ rctx->csr.hash.hmac = 1;
+ rctx->csr.hash.key_flag = 1;
+
+ writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR);
+
+ for (loop = 0; loop < klen / sizeof(unsigned int); loop++, key++)
+ writel(*key, cryp->base + STARFIVE_HASH_SHAWKR);
+
+ if (klen & 0x3) {
+ cl = (unsigned char *)key;
+ for (loop = 0; loop < (klen & 0x3); loop++, cl++)
+ writeb(*cl, cryp->base + STARFIVE_HASH_SHAWKR);
+ }
+
+ if (starfive_hash_wait_key_done(ctx))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT, "starfive_hash_wait_key_done error\n");
+
+ return 0;
+}
+
+static void starfive_hash_start(void *param)
+{
+ struct starfive_cryp_ctx *ctx = param;
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ union starfive_alg_cr alg_cr;
+ union starfive_hash_csr csr;
+ u32 stat;
+
+ dma_unmap_sg(cryp->dev, rctx->in_sg, rctx->in_sg_len, DMA_TO_DEVICE);
+
+ alg_cr.v = 0;
+ alg_cr.clear = 1;
+
+ writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET);
+
+ csr.v = readl(cryp->base + STARFIVE_HASH_SHACSR);
+ csr.firstb = 0;
+ csr.final = 1;
+
+ stat = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);
+ stat &= ~STARFIVE_IE_MASK_HASH_DONE;
+ writel(stat, cryp->base + STARFIVE_IE_MASK_OFFSET);
+ writel(csr.v, cryp->base + STARFIVE_HASH_SHACSR);
+}
+
+static int starfive_hash_xmit_dma(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct dma_async_tx_descriptor *in_desc;
+ union starfive_alg_cr alg_cr;
+ int total_len;
+ int ret;
+
+ if (!rctx->total) {
+ starfive_hash_start(ctx);
+ return 0;
+ }
+
+ writel(rctx->total, cryp->base + STARFIVE_DMA_IN_LEN_OFFSET);
+
+ total_len = rctx->total;
+ total_len = (total_len & 0x3) ? (((total_len >> 2) + 1) << 2) : total_len;
+ sg_dma_len(rctx->in_sg) = total_len;
+
+ alg_cr.v = 0;
+ alg_cr.start = 1;
+ alg_cr.hash_dma_en = 1;
+
+ writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET);
+
+ ret = dma_map_sg(cryp->dev, rctx->in_sg, rctx->in_sg_len, DMA_TO_DEVICE);
+ if (!ret)
+ return dev_err_probe(cryp->dev, -EINVAL, "dma_map_sg() error\n");
+
+ cryp->cfg_in.direction = DMA_MEM_TO_DEV;
+ cryp->cfg_in.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ cryp->cfg_in.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ cryp->cfg_in.src_maxburst = cryp->dma_maxburst;
+ cryp->cfg_in.dst_maxburst = cryp->dma_maxburst;
+ cryp->cfg_in.dst_addr = cryp->phys_base + STARFIVE_ALG_FIFO_OFFSET;
+
+ dmaengine_slave_config(cryp->tx, &cryp->cfg_in);
+
+ in_desc = dmaengine_prep_slave_sg(cryp->tx, rctx->in_sg,
+ ret, DMA_MEM_TO_DEV,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+
+ if (!in_desc)
+ return -EINVAL;
+
+ in_desc->callback = starfive_hash_start;
+ in_desc->callback_param = ctx;
+
+ dmaengine_submit(in_desc);
+ dma_async_issue_pending(cryp->tx);
+
+ return 0;
+}
+
+static int starfive_hash_xmit(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ int ret = 0;
+
+ rctx->csr.hash.v = 0;
+ rctx->csr.hash.reset = 1;
+ writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR);
+
+ if (starfive_hash_wait_busy(ctx))
+ return dev_err_probe(cryp->dev, -ETIMEDOUT, "Error resetting engine.\n");
+
+ rctx->csr.hash.v = 0;
+ rctx->csr.hash.mode = ctx->hash_mode;
+ rctx->csr.hash.ie = 1;
+
+ if (ctx->is_hmac) {
+ ret = starfive_hash_hmac_key(ctx);
+ if (ret)
+ return ret;
+ } else {
+ rctx->csr.hash.start = 1;
+ rctx->csr.hash.firstb = 1;
+ writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR);
+ }
+
+ return starfive_hash_xmit_dma(ctx);
+}
+
+static int starfive_hash_copy_hash(struct ahash_request *req)
+{
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
+ int count, *data;
+ int mlen;
+
+ if (!req->result)
+ return 0;
+
+ mlen = rctx->digsize / sizeof(u32);
+ data = (u32 *)req->result;
+
+ for (count = 0; count < mlen; count++)
+ data[count] = readl(ctx->cryp->base + STARFIVE_HASH_SHARDR);
+
+ return 0;
+}
+
+void starfive_hash_done_task(unsigned long param)
+{
+ struct starfive_cryp_dev *cryp = (struct starfive_cryp_dev *)param;
+ int err = cryp->err;
+
+ if (!err)
+ err = starfive_hash_copy_hash(cryp->req.hreq);
+
+ /* Reset to clear hash_done in irq register*/
+ writel(STARFIVE_HASH_RESET, cryp->base + STARFIVE_HASH_SHACSR);
+
+ crypto_finalize_hash_request(cryp->engine, cryp->req.hreq, err);
+}
+
+static int starfive_hash_check_aligned(struct scatterlist *sg, size_t total, size_t align)
+{
+ int len = 0;
+
+ if (!total)
+ return 0;
+
+ if (!IS_ALIGNED(total, align))
+ return -EINVAL;
+
+ while (sg) {
+ if (!IS_ALIGNED(sg->offset, sizeof(u32)))
+ return -EINVAL;
+
+ if (!IS_ALIGNED(sg->length, align))
+ return -EINVAL;
+
+ len += sg->length;
+ sg = sg_next(sg);
+ }
+
+ if (len != total)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int starfive_hash_one_request(struct crypto_engine *engine, void *areq)
+{
+ struct ahash_request *req = container_of(areq, struct ahash_request,
+ base);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ if (!cryp)
+ return -ENODEV;
+
+ return starfive_hash_xmit(ctx);
+}
+
+static int starfive_hash_init(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
+ ahash_request_set_callback(&rctx->ahash_fbk_req,
+ req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+ req->base.complete, req->base.data);
+
+ ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src,
+ req->result, req->nbytes);
+
+ return crypto_ahash_init(&rctx->ahash_fbk_req);
+}
+
+static int starfive_hash_update(struct ahash_request *req)
+{
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
+ ahash_request_set_callback(&rctx->ahash_fbk_req,
+ req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+ req->base.complete, req->base.data);
+
+ ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src,
+ req->result, req->nbytes);
+
+ return crypto_ahash_update(&rctx->ahash_fbk_req);
+}
+
+static int starfive_hash_final(struct ahash_request *req)
+{
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
+ ahash_request_set_callback(&rctx->ahash_fbk_req,
+ req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+ req->base.complete, req->base.data);
+
+ ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src,
+ req->result, req->nbytes);
+
+ return crypto_ahash_final(&rctx->ahash_fbk_req);
+}
+
+static int starfive_hash_finup(struct ahash_request *req)
+{
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
+ ahash_request_set_callback(&rctx->ahash_fbk_req,
+ req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+ req->base.complete, req->base.data);
+
+ ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src,
+ req->result, req->nbytes);
+
+ return crypto_ahash_finup(&rctx->ahash_fbk_req);
+}
+
+static int starfive_hash_digest_fb(struct ahash_request *req)
+{
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
+ ahash_request_set_callback(&rctx->ahash_fbk_req, req->base.flags,
+ req->base.complete, req->base.data);
+
+ ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src,
+ req->result, req->nbytes);
+
+ return crypto_ahash_digest(&rctx->ahash_fbk_req);
+}
+
+static int starfive_hash_digest(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ memset(rctx, 0, sizeof(struct starfive_cryp_request_ctx));
+
+ cryp->req.hreq = req;
+ rctx->total = req->nbytes;
+ rctx->in_sg = req->src;
+ rctx->blksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+ rctx->digsize = crypto_ahash_digestsize(tfm);
+ rctx->in_sg_len = sg_nents_for_len(rctx->in_sg, rctx->total);
+ ctx->rctx = rctx;
+
+ if (starfive_hash_check_aligned(rctx->in_sg, rctx->total, rctx->blksize))
+ return starfive_hash_digest_fb(req);
+
+ return crypto_transfer_hash_request_to_engine(cryp->engine, req);
+}
+
+static int starfive_hash_export(struct ahash_request *req, void *out)
+{
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
+ ahash_request_set_callback(&rctx->ahash_fbk_req,
+ req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+ req->base.complete, req->base.data);
+
+ return crypto_ahash_export(&rctx->ahash_fbk_req, out);
+}
+
+static int starfive_hash_import(struct ahash_request *req, const void *in)
+{
+ struct starfive_cryp_request_ctx *rctx = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk);
+ ahash_request_set_callback(&rctx->ahash_fbk_req,
+ req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+ req->base.complete, req->base.data);
+
+ return crypto_ahash_import(&rctx->ahash_fbk_req, in);
+}
+
+static int starfive_hash_init_tfm(struct crypto_ahash *hash,
+ const char *alg_name,
+ unsigned int mode)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+
+ ctx->cryp = starfive_cryp_find_dev(ctx);
+
+ if (!ctx->cryp)
+ return -ENODEV;
+
+ ctx->ahash_fbk = crypto_alloc_ahash(alg_name, 0,
+ CRYPTO_ALG_NEED_FALLBACK);
+
+ if (IS_ERR(ctx->ahash_fbk))
+ return dev_err_probe(ctx->cryp->dev, PTR_ERR(ctx->ahash_fbk),
+ "starfive_hash: Could not load fallback driver.\n");
+
+ crypto_ahash_set_statesize(hash, crypto_ahash_statesize(ctx->ahash_fbk));
+ crypto_ahash_set_reqsize(hash, sizeof(struct starfive_cryp_request_ctx) +
+ crypto_ahash_reqsize(ctx->ahash_fbk));
+
+ ctx->keylen = 0;
+ ctx->hash_mode = mode;
+
+ return 0;
+}
+
+static void starfive_hash_exit_tfm(struct crypto_ahash *hash)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+
+ crypto_free_ahash(ctx->ahash_fbk);
+}
+
+static int starfive_hash_long_setkey(struct starfive_cryp_ctx *ctx,
+ const u8 *key, unsigned int keylen,
+ const char *alg_name)
+{
+ struct crypto_wait wait;
+ struct ahash_request *req;
+ struct scatterlist sg;
+ struct crypto_ahash *ahash_tfm;
+ u8 *buf;
+ int ret;
+
+ ahash_tfm = crypto_alloc_ahash(alg_name, 0, 0);
+ if (IS_ERR(ahash_tfm))
+ return PTR_ERR(ahash_tfm);
+
+ req = ahash_request_alloc(ahash_tfm, GFP_KERNEL);
+ if (!req) {
+ ret = -ENOMEM;
+ goto err_free_ahash;
+ }
+
+ crypto_init_wait(&wait);
+ ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &wait);
+ crypto_ahash_clear_flags(ahash_tfm, ~0);
+
+ buf = kzalloc(keylen + STARFIVE_HASH_BUFLEN, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto err_free_req;
+ }
+
+ memcpy(buf, key, keylen);
+ sg_init_one(&sg, buf, keylen);
+ ahash_request_set_crypt(req, &sg, ctx->key, keylen);
+
+ ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
+
+ kfree(buf);
+err_free_req:
+ ahash_request_free(req);
+err_free_ahash:
+ crypto_free_ahash(ahash_tfm);
+ return ret;
+}
+
+static int starfive_hash_setkey(struct crypto_ahash *hash,
+ const u8 *key, unsigned int keylen)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+ unsigned int digestsize = crypto_ahash_digestsize(hash);
+ unsigned int blocksize = crypto_ahash_blocksize(hash);
+ const char *alg_name;
+
+ crypto_ahash_setkey(ctx->ahash_fbk, key, keylen);
+
+ if (keylen <= blocksize) {
+ memcpy(ctx->key, key, keylen);
+ ctx->keylen = keylen;
+ return 0;
+ }
+
+ ctx->keylen = digestsize;
+
+ switch (digestsize) {
+ case SHA224_DIGEST_SIZE:
+ alg_name = "sha224-starfive";
+ break;
+ case SHA256_DIGEST_SIZE:
+ if (ctx->hash_mode == STARFIVE_HASH_SM3)
+ alg_name = "sm3-starfive";
+ else
+ alg_name = "sha256-starfive";
+ break;
+ case SHA384_DIGEST_SIZE:
+ alg_name = "sha384-starfive";
+ break;
+ case SHA512_DIGEST_SIZE:
+ alg_name = "sha512-starfive";
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return starfive_hash_long_setkey(ctx, key, keylen, alg_name);
+}
+
+static int starfive_sha224_init_tfm(struct crypto_ahash *hash)
+{
+ return starfive_hash_init_tfm(hash, "sha224-generic",
+ STARFIVE_HASH_SHA224);
+}
+
+static int starfive_sha256_init_tfm(struct crypto_ahash *hash)
+{
+ return starfive_hash_init_tfm(hash, "sha256-generic",
+ STARFIVE_HASH_SHA256);
+}
+
+static int starfive_sha384_init_tfm(struct crypto_ahash *hash)
+{
+ return starfive_hash_init_tfm(hash, "sha384-generic",
+ STARFIVE_HASH_SHA384);
+}
+
+static int starfive_sha512_init_tfm(struct crypto_ahash *hash)
+{
+ return starfive_hash_init_tfm(hash, "sha512-generic",
+ STARFIVE_HASH_SHA512);
+}
+
+static int starfive_sm3_init_tfm(struct crypto_ahash *hash)
+{
+ return starfive_hash_init_tfm(hash, "sm3-generic",
+ STARFIVE_HASH_SM3);
+}
+
+static int starfive_hmac_sha224_init_tfm(struct crypto_ahash *hash)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+
+ ctx->is_hmac = true;
+
+ return starfive_hash_init_tfm(hash, "hmac(sha224-generic)",
+ STARFIVE_HASH_SHA224);
+}
+
+static int starfive_hmac_sha256_init_tfm(struct crypto_ahash *hash)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+
+ ctx->is_hmac = true;
+
+ return starfive_hash_init_tfm(hash, "hmac(sha256-generic)",
+ STARFIVE_HASH_SHA256);
+}
+
+static int starfive_hmac_sha384_init_tfm(struct crypto_ahash *hash)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+
+ ctx->is_hmac = true;
+
+ return starfive_hash_init_tfm(hash, "hmac(sha384-generic)",
+ STARFIVE_HASH_SHA384);
+}
+
+static int starfive_hmac_sha512_init_tfm(struct crypto_ahash *hash)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+
+ ctx->is_hmac = true;
+
+ return starfive_hash_init_tfm(hash, "hmac(sha512-generic)",
+ STARFIVE_HASH_SHA512);
+}
+
+static int starfive_hmac_sm3_init_tfm(struct crypto_ahash *hash)
+{
+ struct starfive_cryp_ctx *ctx = crypto_ahash_ctx(hash);
+
+ ctx->is_hmac = true;
+
+ return starfive_hash_init_tfm(hash, "hmac(sm3-generic)",
+ STARFIVE_HASH_SM3);
+}
+
+static struct ahash_engine_alg algs_sha2_sm3[] = {
+{
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_sha224_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha224",
+ .cra_driver_name = "sha224-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_hmac_sha224_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.setkey = starfive_hash_setkey,
+ .base.halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "hmac(sha224)",
+ .cra_driver_name = "sha224-hmac-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_sha256_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "sha256-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_hmac_sha256_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.setkey = starfive_hash_setkey,
+ .base.halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "hmac(sha256)",
+ .cra_driver_name = "sha256-hmac-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_sha384_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.halg = {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .statesize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha384",
+ .cra_driver_name = "sha384-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_hmac_sha384_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.setkey = starfive_hash_setkey,
+ .base.halg = {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .statesize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "hmac(sha384)",
+ .cra_driver_name = "sha384-hmac-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_sha512_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.halg = {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .statesize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha512",
+ .cra_driver_name = "sha512-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_hmac_sha512_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.setkey = starfive_hash_setkey,
+ .base.halg = {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .statesize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "hmac(sha512)",
+ .cra_driver_name = "sha512-hmac-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_sm3_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.halg = {
+ .digestsize = SM3_DIGEST_SIZE,
+ .statesize = sizeof(struct sm3_state),
+ .base = {
+ .cra_name = "sm3",
+ .cra_driver_name = "sm3-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SM3_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+}, {
+ .base.init = starfive_hash_init,
+ .base.update = starfive_hash_update,
+ .base.final = starfive_hash_final,
+ .base.finup = starfive_hash_finup,
+ .base.digest = starfive_hash_digest,
+ .base.export = starfive_hash_export,
+ .base.import = starfive_hash_import,
+ .base.init_tfm = starfive_hmac_sm3_init_tfm,
+ .base.exit_tfm = starfive_hash_exit_tfm,
+ .base.setkey = starfive_hash_setkey,
+ .base.halg = {
+ .digestsize = SM3_DIGEST_SIZE,
+ .statesize = sizeof(struct sm3_state),
+ .base = {
+ .cra_name = "hmac(sm3)",
+ .cra_driver_name = "sm3-hmac-starfive",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SM3_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ }
+ },
+ .op = {
+ .do_one_request = starfive_hash_one_request,
+ },
+},
+};
+
+int starfive_hash_register_algs(void)
+{
+ return crypto_engine_register_ahashes(algs_sha2_sm3, ARRAY_SIZE(algs_sha2_sm3));
+}
+
+void starfive_hash_unregister_algs(void)
+{
+ crypto_engine_unregister_ahashes(algs_sha2_sm3, ARRAY_SIZE(algs_sha2_sm3));
+}
diff --git a/drivers/crypto/starfive/jh7110-rsa.c b/drivers/crypto/starfive/jh7110-rsa.c
new file mode 100644
index 0000000000..f31bbd825f
--- /dev/null
+++ b/drivers/crypto/starfive/jh7110-rsa.c
@@ -0,0 +1,617 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * StarFive Public Key Algo acceleration driver
+ *
+ * Copyright (c) 2022 StarFive Technology
+ */
+
+#include <linux/crypto.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-direct.h>
+#include <linux/interrupt.h>
+#include <linux/iopoll.h>
+#include <linux/io.h>
+#include <linux/mod_devicetable.h>
+#include <crypto/akcipher.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/akcipher.h>
+#include <crypto/internal/rsa.h>
+#include <crypto/scatterwalk.h>
+
+#include "jh7110-cryp.h"
+
+#define STARFIVE_PKA_REGS_OFFSET 0x400
+#define STARFIVE_PKA_CACR_OFFSET (STARFIVE_PKA_REGS_OFFSET + 0x0)
+#define STARFIVE_PKA_CASR_OFFSET (STARFIVE_PKA_REGS_OFFSET + 0x4)
+#define STARFIVE_PKA_CAAR_OFFSET (STARFIVE_PKA_REGS_OFFSET + 0x8)
+#define STARFIVE_PKA_CAER_OFFSET (STARFIVE_PKA_REGS_OFFSET + 0x108)
+#define STARFIVE_PKA_CANR_OFFSET (STARFIVE_PKA_REGS_OFFSET + 0x208)
+
+// R^2 mod N and N0'
+#define CRYPTO_CMD_PRE 0x0
+// A * R mod N ==> A
+#define CRYPTO_CMD_ARN 0x5
+// A * E * R mod N ==> A
+#define CRYPTO_CMD_AERN 0x6
+// A * A * R mod N ==> A
+#define CRYPTO_CMD_AARN 0x7
+
+#define STARFIVE_RSA_MAX_KEYSZ 256
+#define STARFIVE_RSA_RESET 0x2
+
+static inline int starfive_pka_wait_done(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+
+ return wait_for_completion_timeout(&cryp->pka_done,
+ usecs_to_jiffies(100000));
+}
+
+static inline void starfive_pka_irq_mask_clear(struct starfive_cryp_ctx *ctx)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ u32 stat;
+
+ stat = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);
+ stat &= ~STARFIVE_IE_MASK_PKA_DONE;
+ writel(stat, cryp->base + STARFIVE_IE_MASK_OFFSET);
+
+ reinit_completion(&cryp->pka_done);
+}
+
+static void starfive_rsa_free_key(struct starfive_rsa_key *key)
+{
+ if (key->d)
+ kfree_sensitive(key->d);
+ if (key->e)
+ kfree_sensitive(key->e);
+ if (key->n)
+ kfree_sensitive(key->n);
+ memset(key, 0, sizeof(*key));
+}
+
+static unsigned int starfive_rsa_get_nbit(u8 *pa, u32 snum, int key_sz)
+{
+ u32 i;
+ u8 value;
+
+ i = snum >> 3;
+
+ value = pa[key_sz - i - 1];
+ value >>= snum & 0x7;
+ value &= 0x1;
+
+ return value;
+}
+
+static int starfive_rsa_montgomery_form(struct starfive_cryp_ctx *ctx,
+ u32 *out, u32 *in, u8 mont,
+ u32 *mod, int bit_len)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ int count = rctx->total / sizeof(u32) - 1;
+ int loop;
+ u32 temp;
+ u8 opsize;
+
+ opsize = (bit_len - 1) >> 5;
+ rctx->csr.pka.v = 0;
+
+ writel(rctx->csr.pka.v, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ for (loop = 0; loop <= opsize; loop++)
+ writel(mod[opsize - loop], cryp->base + STARFIVE_PKA_CANR_OFFSET + loop * 4);
+
+ if (mont) {
+ rctx->csr.pka.v = 0;
+ rctx->csr.pka.cln_done = 1;
+ rctx->csr.pka.opsize = opsize;
+ rctx->csr.pka.exposize = opsize;
+ rctx->csr.pka.cmd = CRYPTO_CMD_PRE;
+ rctx->csr.pka.start = 1;
+ rctx->csr.pka.not_r2 = 1;
+ rctx->csr.pka.ie = 1;
+
+ starfive_pka_irq_mask_clear(ctx);
+ writel(rctx->csr.pka.v, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ if (!starfive_pka_wait_done(ctx))
+ return -ETIMEDOUT;
+
+ for (loop = 0; loop <= opsize; loop++)
+ writel(in[opsize - loop], cryp->base + STARFIVE_PKA_CAAR_OFFSET + loop * 4);
+
+ writel(0x1000000, cryp->base + STARFIVE_PKA_CAER_OFFSET);
+
+ for (loop = 1; loop <= opsize; loop++)
+ writel(0, cryp->base + STARFIVE_PKA_CAER_OFFSET + loop * 4);
+
+ rctx->csr.pka.v = 0;
+ rctx->csr.pka.cln_done = 1;
+ rctx->csr.pka.opsize = opsize;
+ rctx->csr.pka.exposize = opsize;
+ rctx->csr.pka.cmd = CRYPTO_CMD_AERN;
+ rctx->csr.pka.start = 1;
+ rctx->csr.pka.ie = 1;
+
+ starfive_pka_irq_mask_clear(ctx);
+ writel(rctx->csr.pka.v, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ if (!starfive_pka_wait_done(ctx))
+ return -ETIMEDOUT;
+ } else {
+ rctx->csr.pka.v = 0;
+ rctx->csr.pka.cln_done = 1;
+ rctx->csr.pka.opsize = opsize;
+ rctx->csr.pka.exposize = opsize;
+ rctx->csr.pka.cmd = CRYPTO_CMD_PRE;
+ rctx->csr.pka.start = 1;
+ rctx->csr.pka.pre_expf = 1;
+ rctx->csr.pka.ie = 1;
+
+ starfive_pka_irq_mask_clear(ctx);
+ writel(rctx->csr.pka.v, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ if (!starfive_pka_wait_done(ctx))
+ return -ETIMEDOUT;
+
+ for (loop = 0; loop <= count; loop++)
+ writel(in[count - loop], cryp->base + STARFIVE_PKA_CAER_OFFSET + loop * 4);
+
+ /*pad with 0 up to opsize*/
+ for (loop = count + 1; loop <= opsize; loop++)
+ writel(0, cryp->base + STARFIVE_PKA_CAER_OFFSET + loop * 4);
+
+ rctx->csr.pka.v = 0;
+ rctx->csr.pka.cln_done = 1;
+ rctx->csr.pka.opsize = opsize;
+ rctx->csr.pka.exposize = opsize;
+ rctx->csr.pka.cmd = CRYPTO_CMD_ARN;
+ rctx->csr.pka.start = 1;
+ rctx->csr.pka.ie = 1;
+
+ starfive_pka_irq_mask_clear(ctx);
+ writel(rctx->csr.pka.v, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ if (!starfive_pka_wait_done(ctx))
+ return -ETIMEDOUT;
+ }
+
+ for (loop = 0; loop <= opsize; loop++) {
+ temp = readl(cryp->base + STARFIVE_PKA_CAAR_OFFSET + 0x4 * loop);
+ out[opsize - loop] = temp;
+ }
+
+ return 0;
+}
+
+static int starfive_rsa_cpu_start(struct starfive_cryp_ctx *ctx, u32 *result,
+ u8 *de, u32 *n, int key_sz)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_rsa_key *key = &ctx->rsa_key;
+ u32 temp;
+ int ret = 0;
+ int opsize, mlen, loop;
+ unsigned int *mta;
+
+ opsize = (key_sz - 1) >> 2;
+
+ mta = kmalloc(key_sz, GFP_KERNEL);
+ if (!mta)
+ return -ENOMEM;
+
+ ret = starfive_rsa_montgomery_form(ctx, mta, (u32 *)rctx->rsa_data,
+ 0, n, key_sz << 3);
+ if (ret) {
+ dev_err_probe(cryp->dev, ret, "Conversion to Montgomery failed");
+ goto rsa_err;
+ }
+
+ for (loop = 0; loop <= opsize; loop++)
+ writel(mta[opsize - loop],
+ cryp->base + STARFIVE_PKA_CAER_OFFSET + loop * 4);
+
+ for (loop = key->bitlen - 1; loop > 0; loop--) {
+ mlen = starfive_rsa_get_nbit(de, loop - 1, key_sz);
+
+ rctx->csr.pka.v = 0;
+ rctx->csr.pka.cln_done = 1;
+ rctx->csr.pka.opsize = opsize;
+ rctx->csr.pka.exposize = opsize;
+ rctx->csr.pka.cmd = CRYPTO_CMD_AARN;
+ rctx->csr.pka.start = 1;
+ rctx->csr.pka.ie = 1;
+
+ starfive_pka_irq_mask_clear(ctx);
+ writel(rctx->csr.pka.v, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ ret = -ETIMEDOUT;
+ if (!starfive_pka_wait_done(ctx))
+ goto rsa_err;
+
+ if (mlen) {
+ rctx->csr.pka.v = 0;
+ rctx->csr.pka.cln_done = 1;
+ rctx->csr.pka.opsize = opsize;
+ rctx->csr.pka.exposize = opsize;
+ rctx->csr.pka.cmd = CRYPTO_CMD_AERN;
+ rctx->csr.pka.start = 1;
+ rctx->csr.pka.ie = 1;
+
+ starfive_pka_irq_mask_clear(ctx);
+ writel(rctx->csr.pka.v, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ if (!starfive_pka_wait_done(ctx))
+ goto rsa_err;
+ }
+ }
+
+ for (loop = 0; loop <= opsize; loop++) {
+ temp = readl(cryp->base + STARFIVE_PKA_CAAR_OFFSET + 0x4 * loop);
+ result[opsize - loop] = temp;
+ }
+
+ ret = starfive_rsa_montgomery_form(ctx, result, result, 1, n, key_sz << 3);
+ if (ret)
+ dev_err_probe(cryp->dev, ret, "Conversion from Montgomery failed");
+rsa_err:
+ kfree(mta);
+ return ret;
+}
+
+static int starfive_rsa_start(struct starfive_cryp_ctx *ctx, u8 *result,
+ u8 *de, u8 *n, int key_sz)
+{
+ return starfive_rsa_cpu_start(ctx, (u32 *)result, de, (u32 *)n, key_sz);
+}
+
+static int starfive_rsa_enc_core(struct starfive_cryp_ctx *ctx, int enc)
+{
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_cryp_request_ctx *rctx = ctx->rctx;
+ struct starfive_rsa_key *key = &ctx->rsa_key;
+ int ret = 0;
+
+ writel(STARFIVE_RSA_RESET, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+
+ rctx->total = sg_copy_to_buffer(rctx->in_sg, rctx->nents,
+ rctx->rsa_data, rctx->total);
+
+ if (enc) {
+ key->bitlen = key->e_bitlen;
+ ret = starfive_rsa_start(ctx, rctx->rsa_data, key->e,
+ key->n, key->key_sz);
+ } else {
+ key->bitlen = key->d_bitlen;
+ ret = starfive_rsa_start(ctx, rctx->rsa_data, key->d,
+ key->n, key->key_sz);
+ }
+
+ if (ret)
+ goto err_rsa_crypt;
+
+ sg_copy_buffer(rctx->out_sg, sg_nents(rctx->out_sg),
+ rctx->rsa_data, key->key_sz, 0, 0);
+
+err_rsa_crypt:
+ writel(STARFIVE_RSA_RESET, cryp->base + STARFIVE_PKA_CACR_OFFSET);
+ kfree(rctx->rsa_data);
+ return ret;
+}
+
+static int starfive_rsa_enc(struct akcipher_request *req)
+{
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_rsa_key *key = &ctx->rsa_key;
+ struct starfive_cryp_request_ctx *rctx = akcipher_request_ctx(req);
+ int ret;
+
+ if (!key->key_sz) {
+ akcipher_request_set_tfm(req, ctx->akcipher_fbk);
+ ret = crypto_akcipher_encrypt(req);
+ akcipher_request_set_tfm(req, tfm);
+ return ret;
+ }
+
+ if (unlikely(!key->n || !key->e))
+ return -EINVAL;
+
+ if (req->dst_len < key->key_sz)
+ return dev_err_probe(cryp->dev, -EOVERFLOW,
+ "Output buffer length less than parameter n\n");
+
+ rctx->in_sg = req->src;
+ rctx->out_sg = req->dst;
+ rctx->total = req->src_len;
+ rctx->nents = sg_nents(rctx->in_sg);
+ ctx->rctx = rctx;
+
+ return starfive_rsa_enc_core(ctx, 1);
+}
+
+static int starfive_rsa_dec(struct akcipher_request *req)
+{
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+ struct starfive_cryp_dev *cryp = ctx->cryp;
+ struct starfive_rsa_key *key = &ctx->rsa_key;
+ struct starfive_cryp_request_ctx *rctx = akcipher_request_ctx(req);
+ int ret;
+
+ if (!key->key_sz) {
+ akcipher_request_set_tfm(req, ctx->akcipher_fbk);
+ ret = crypto_akcipher_decrypt(req);
+ akcipher_request_set_tfm(req, tfm);
+ return ret;
+ }
+
+ if (unlikely(!key->n || !key->d))
+ return -EINVAL;
+
+ if (req->dst_len < key->key_sz)
+ return dev_err_probe(cryp->dev, -EOVERFLOW,
+ "Output buffer length less than parameter n\n");
+
+ rctx->in_sg = req->src;
+ rctx->out_sg = req->dst;
+ ctx->rctx = rctx;
+ rctx->total = req->src_len;
+
+ return starfive_rsa_enc_core(ctx, 0);
+}
+
+static int starfive_rsa_set_n(struct starfive_rsa_key *rsa_key,
+ const char *value, size_t vlen)
+{
+ const char *ptr = value;
+ unsigned int bitslen;
+ int ret;
+
+ while (!*ptr && vlen) {
+ ptr++;
+ vlen--;
+ }
+ rsa_key->key_sz = vlen;
+ bitslen = rsa_key->key_sz << 3;
+
+ /* check valid key size */
+ if (bitslen & 0x1f)
+ return -EINVAL;
+
+ ret = -ENOMEM;
+ rsa_key->n = kmemdup(ptr, rsa_key->key_sz, GFP_KERNEL);
+ if (!rsa_key->n)
+ goto err;
+
+ return 0;
+ err:
+ rsa_key->key_sz = 0;
+ rsa_key->n = NULL;
+ starfive_rsa_free_key(rsa_key);
+ return ret;
+}
+
+static int starfive_rsa_set_e(struct starfive_rsa_key *rsa_key,
+ const char *value, size_t vlen)
+{
+ const char *ptr = value;
+ unsigned char pt;
+ int loop;
+
+ while (!*ptr && vlen) {
+ ptr++;
+ vlen--;
+ }
+ pt = *ptr;
+
+ if (!rsa_key->key_sz || !vlen || vlen > rsa_key->key_sz) {
+ rsa_key->e = NULL;
+ return -EINVAL;
+ }
+
+ rsa_key->e = kzalloc(rsa_key->key_sz, GFP_KERNEL);
+ if (!rsa_key->e)
+ return -ENOMEM;
+
+ for (loop = 8; loop > 0; loop--) {
+ if (pt >> (loop - 1))
+ break;
+ }
+
+ rsa_key->e_bitlen = (vlen - 1) * 8 + loop;
+
+ memcpy(rsa_key->e + (rsa_key->key_sz - vlen), ptr, vlen);
+
+ return 0;
+}
+
+static int starfive_rsa_set_d(struct starfive_rsa_key *rsa_key,
+ const char *value, size_t vlen)
+{
+ const char *ptr = value;
+ unsigned char pt;
+ int loop;
+ int ret;
+
+ while (!*ptr && vlen) {
+ ptr++;
+ vlen--;
+ }
+ pt = *ptr;
+
+ ret = -EINVAL;
+ if (!rsa_key->key_sz || !vlen || vlen > rsa_key->key_sz)
+ goto err;
+
+ ret = -ENOMEM;
+ rsa_key->d = kzalloc(rsa_key->key_sz, GFP_KERNEL);
+ if (!rsa_key->d)
+ goto err;
+
+ for (loop = 8; loop > 0; loop--) {
+ if (pt >> (loop - 1))
+ break;
+ }
+
+ rsa_key->d_bitlen = (vlen - 1) * 8 + loop;
+
+ memcpy(rsa_key->d + (rsa_key->key_sz - vlen), ptr, vlen);
+
+ return 0;
+ err:
+ rsa_key->d = NULL;
+ return ret;
+}
+
+static int starfive_rsa_setkey(struct crypto_akcipher *tfm, const void *key,
+ unsigned int keylen, bool private)
+{
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+ struct rsa_key raw_key = {NULL};
+ struct starfive_rsa_key *rsa_key = &ctx->rsa_key;
+ int ret;
+
+ if (private)
+ ret = rsa_parse_priv_key(&raw_key, key, keylen);
+ else
+ ret = rsa_parse_pub_key(&raw_key, key, keylen);
+ if (ret < 0)
+ goto err;
+
+ starfive_rsa_free_key(rsa_key);
+
+ /* Use fallback for mod > 256 + 1 byte prefix */
+ if (raw_key.n_sz > STARFIVE_RSA_MAX_KEYSZ + 1)
+ return 0;
+
+ ret = starfive_rsa_set_n(rsa_key, raw_key.n, raw_key.n_sz);
+ if (ret)
+ return ret;
+
+ ret = starfive_rsa_set_e(rsa_key, raw_key.e, raw_key.e_sz);
+ if (ret)
+ goto err;
+
+ if (private) {
+ ret = starfive_rsa_set_d(rsa_key, raw_key.d, raw_key.d_sz);
+ if (ret)
+ goto err;
+ }
+
+ if (!rsa_key->n || !rsa_key->e) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (private && !rsa_key->d) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ return 0;
+ err:
+ starfive_rsa_free_key(rsa_key);
+ return ret;
+}
+
+static int starfive_rsa_set_pub_key(struct crypto_akcipher *tfm, const void *key,
+ unsigned int keylen)
+{
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+ int ret;
+
+ ret = crypto_akcipher_set_pub_key(ctx->akcipher_fbk, key, keylen);
+ if (ret)
+ return ret;
+
+ return starfive_rsa_setkey(tfm, key, keylen, false);
+}
+
+static int starfive_rsa_set_priv_key(struct crypto_akcipher *tfm, const void *key,
+ unsigned int keylen)
+{
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+ int ret;
+
+ ret = crypto_akcipher_set_priv_key(ctx->akcipher_fbk, key, keylen);
+ if (ret)
+ return ret;
+
+ return starfive_rsa_setkey(tfm, key, keylen, true);
+}
+
+static unsigned int starfive_rsa_max_size(struct crypto_akcipher *tfm)
+{
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+
+ if (ctx->rsa_key.key_sz)
+ return ctx->rsa_key.key_sz;
+
+ return crypto_akcipher_maxsize(ctx->akcipher_fbk);
+}
+
+static int starfive_rsa_init_tfm(struct crypto_akcipher *tfm)
+{
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+
+ ctx->akcipher_fbk = crypto_alloc_akcipher("rsa-generic", 0, 0);
+ if (IS_ERR(ctx->akcipher_fbk))
+ return PTR_ERR(ctx->akcipher_fbk);
+
+ ctx->cryp = starfive_cryp_find_dev(ctx);
+ if (!ctx->cryp) {
+ crypto_free_akcipher(ctx->akcipher_fbk);
+ return -ENODEV;
+ }
+
+ akcipher_set_reqsize(tfm, sizeof(struct starfive_cryp_request_ctx) +
+ sizeof(struct crypto_akcipher) + 32);
+
+ return 0;
+}
+
+static void starfive_rsa_exit_tfm(struct crypto_akcipher *tfm)
+{
+ struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
+ struct starfive_rsa_key *key = (struct starfive_rsa_key *)&ctx->rsa_key;
+
+ crypto_free_akcipher(ctx->akcipher_fbk);
+ starfive_rsa_free_key(key);
+}
+
+static struct akcipher_alg starfive_rsa = {
+ .encrypt = starfive_rsa_enc,
+ .decrypt = starfive_rsa_dec,
+ .sign = starfive_rsa_dec,
+ .verify = starfive_rsa_enc,
+ .set_pub_key = starfive_rsa_set_pub_key,
+ .set_priv_key = starfive_rsa_set_priv_key,
+ .max_size = starfive_rsa_max_size,
+ .init = starfive_rsa_init_tfm,
+ .exit = starfive_rsa_exit_tfm,
+ .base = {
+ .cra_name = "rsa",
+ .cra_driver_name = "starfive-rsa",
+ .cra_flags = CRYPTO_ALG_TYPE_AKCIPHER |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_priority = 3000,
+ .cra_module = THIS_MODULE,
+ .cra_ctxsize = sizeof(struct starfive_cryp_ctx),
+ },
+};
+
+int starfive_rsa_register_algs(void)
+{
+ return crypto_register_akcipher(&starfive_rsa);
+}
+
+void starfive_rsa_unregister_algs(void)
+{
+ crypto_unregister_akcipher(&starfive_rsa);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 10:02:10 +0000