staging: ccree: introduce CryptoCell HW driver

Introduce basic low level Arm TrustZone CryptoCell HW support.
This first patch doesn't actually register any Crypto API
transformations, these will follow up in the next patch.

This first revision supports the CC 712 REE component.

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

1 files changed, 57 insertions, 0 deletions

diff --git a/drivers/staging/ccree/cc_lli_defs.h b/drivers/staging/ccree/cc_lli_defs.h
new file mode 100644
index 000000000000..697f1ed181e0
--- /dev/null
+++ b/drivers/staging/ccree/cc_lli_defs.h
@@ -0,0 +1,57 @@
+/*
+ * 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/>.
+ */
+
+
+#ifndef _CC_LLI_DEFS_H_
+#define _CC_LLI_DEFS_H_
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <stdint.h>
+#endif
+#include "cc_bitops.h"
+
+/* Max DLLI size */
+#define DLLI_SIZE_BIT_SIZE	0x18	// DX_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE
+
+#define CC_MAX_MLLI_ENTRY_SIZE 0x10000
+
+#define MSB64(_addr) (sizeof(_addr) == 4 ? 0 : ((_addr) >> 32)&UINT16_MAX)
+
+#define LLI_SET_ADDR(lli_p, addr) \
+		BITFIELD_SET(((uint32_t *)(lli_p))[LLI_WORD0_OFFSET], LLI_LADDR_BIT_OFFSET, LLI_LADDR_BIT_SIZE, (addr & UINT32_MAX)); \
+		BITFIELD_SET(((uint32_t *)(lli_p))[LLI_WORD1_OFFSET], LLI_HADDR_BIT_OFFSET, LLI_HADDR_BIT_SIZE, MSB64(addr));
+
+#define LLI_SET_SIZE(lli_p, size) \
+		BITFIELD_SET(((uint32_t *)(lli_p))[LLI_WORD1_OFFSET], LLI_SIZE_BIT_OFFSET, LLI_SIZE_BIT_SIZE, size)
+
+/* Size of entry */
+#define LLI_ENTRY_WORD_SIZE 2
+#define LLI_ENTRY_BYTE_SIZE (LLI_ENTRY_WORD_SIZE * sizeof(uint32_t))
+
+/* Word0[31:0] = ADDR[31:0] */
+#define LLI_WORD0_OFFSET 0
+#define LLI_LADDR_BIT_OFFSET 0
+#define LLI_LADDR_BIT_SIZE 32
+/* Word1[31:16] = ADDR[47:32]; Word1[15:0] = SIZE */
+#define LLI_WORD1_OFFSET 1
+#define LLI_SIZE_BIT_OFFSET 0
+#define LLI_SIZE_BIT_SIZE 16
+#define LLI_HADDR_BIT_OFFSET 16
+#define LLI_HADDR_BIT_SIZE 16
+
+
+#endif /*_CC_LLI_DEFS_H_*/