staging: ccree: add skcipher support

Add CryptoCell skcipher support

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 88 insertions, 0 deletions

diff --git a/drivers/staging/ccree/ssi_cipher.h b/drivers/staging/ccree/ssi_cipher.h
new file mode 100644
index 000000000000..9ceb0b6e0fcb
--- /dev/null
+++ b/drivers/staging/ccree/ssi_cipher.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2012-2017 ARM Limited or its affiliates.
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* \file ssi_cipher.h
+   ARM CryptoCell Cipher Crypto API
+ */
+
+#ifndef __SSI_CIPHER_H__
+#define __SSI_CIPHER_H__
+
+#include <linux/kernel.h>
+#include <crypto/algapi.h>
+#include "ssi_driver.h"
+#include "ssi_buffer_mgr.h"
+
+
+/* Crypto cipher flags */
+#define CC_CRYPTO_CIPHER_KEY_KFDE0    (1 << 0)
+#define CC_CRYPTO_CIPHER_KEY_KFDE1    (1 << 1)
+#define CC_CRYPTO_CIPHER_KEY_KFDE2    (1 << 2)
+#define CC_CRYPTO_CIPHER_KEY_KFDE3    (1 << 3)
+#define CC_CRYPTO_CIPHER_DU_SIZE_512B (1 << 4)
+
+#define CC_CRYPTO_CIPHER_KEY_KFDE_MASK (CC_CRYPTO_CIPHER_KEY_KFDE0 | CC_CRYPTO_CIPHER_KEY_KFDE1 | CC_CRYPTO_CIPHER_KEY_KFDE2 | CC_CRYPTO_CIPHER_KEY_KFDE3)
+
+
+struct blkcipher_req_ctx {
+	struct async_gen_req_ctx gen_ctx;
+	enum ssi_req_dma_buf_type dma_buf_type;
+	uint32_t in_nents;
+	uint32_t in_mlli_nents;
+	uint32_t out_nents;
+	uint32_t out_mlli_nents;
+	uint8_t *backup_info; /*store iv for generated IV flow*/
+	struct mlli_params mlli_params;
+};
+
+
+
+int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata);
+
+int ssi_ablkcipher_free(struct ssi_drvdata *drvdata);
+
+#ifndef CRYPTO_ALG_BULK_MASK
+
+#define CRYPTO_ALG_BULK_DU_512	0x00002000
+#define CRYPTO_ALG_BULK_DU_4096	0x00004000
+#define CRYPTO_ALG_BULK_MASK	(CRYPTO_ALG_BULK_DU_512 |\
+				CRYPTO_ALG_BULK_DU_4096)
+#endif /* CRYPTO_ALG_BULK_MASK */
+
+
+#ifdef CRYPTO_TFM_REQ_HW_KEY
+
+static inline bool ssi_is_hw_key(struct crypto_tfm *tfm)
+{
+	return (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_HW_KEY);
+}
+
+#else 
+
+struct arm_hw_key_info {
+	int hw_key1;
+	int hw_key2;
+};
+
+static inline bool ssi_is_hw_key(struct crypto_tfm *tfm)
+{
+	return 0;
+}
+
+#endif /* CRYPTO_TFM_REQ_HW_KEY */
+
+
+#endif /*__SSI_CIPHER_H__*/