diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/crypto/crypto_ubicom32.h')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/crypto/crypto_ubicom32.h | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/crypto/crypto_ubicom32.h b/target/linux/ubicom32/files/arch/ubicom32/crypto/crypto_ubicom32.h deleted file mode 100644 index e754c19b90..0000000000 --- a/target/linux/ubicom32/files/arch/ubicom32/crypto/crypto_ubicom32.h +++ /dev/null @@ -1,346 +0,0 @@ -/* - * arch/ubicom32/crypto/crypto_ubicom32.h - * Support for Ubicom32 cryptographic instructions. - * - * (C) Copyright 2009, Ubicom, Inc. - * - * This file is part of the Ubicom32 Linux Kernel Port. - * - * The Ubicom32 Linux Kernel Port is free software: you can redistribute - * it and/or modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation, either version 2 of the - * License, or (at your option) any later version. - * - * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not, - * see <http://www.gnu.org/licenses/>. - * - * Ubicom32 implementation derived from (with many thanks): - * arch/m68knommu - * arch/blackfin - * arch/parisc - */ -#ifndef _CRYPTO_ARCH_UBICOM32_CRYPT_H -#define _CRYPTO_ARCH_UBICOM32_CRYPT_H - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/jiffies.h> -#include <linux/timer.h> -#include <linux/spinlock.h> -#include <asm/errno.h> -#include <asm/io.h> -#include <asm/ip5000.h> - -#define CRYPTO_UBICOM32_LOOP_ASM 1 -#define CRYPTO_UBICOM32_ALIGNMENT 4 -#define SEC_ALIGNED(p) (((u32)p & 3) == 0) - -#define SEC_BASE SECURITY_BASE -#define SEC_KEY_OFFSET SECURITY_KEY_VALUE(0) -#define SEC_INPUT_OFFSET SECURITY_KEY_IN(0) -#define SEC_OUTPUT_OFFSET SECURITY_KEY_OUT(0) -#define SEC_HASH_OFFSET SECURITY_KEY_HASH(0) - -#define SEC_KEY_128_BITS SECURITY_CTRL_KEY_SIZE(0) -#define SEC_KEY_192_BITS SECURITY_CTRL_KEY_SIZE(1) -#define SEC_KEY_256_BITS SECURITY_CTRL_KEY_SIZE(2) - -#define SEC_HASH_NONE SECURITY_CTRL_HASH_ALG_NONE -#define SEC_HASH_MD5 SECURITY_CTRL_HASH_ALG_MD5 -#define SEC_HASH_SHA1 SECURITY_CTRL_HASH_ALG_SHA1 - -#define SEC_CBC_SET SECURITY_CTRL_CBC -#define SEC_CBC_NONE 0 - -#define SEC_ALG_AES SECURITY_CTRL_CIPHER_ALG_AES -#define SEC_ALG_NONE SECURITY_CTRL_CIPHER_ALG_NONE -#define SEC_ALG_DES SECURITY_CTRL_CIPHER_ALG_DES -#define SEC_ALG_3DES SECURITY_CTRL_CIPHER_ALG_3DES - -#define SEC_DIR_ENCRYPT SECURITY_CTRL_ENCIPHER -#define SEC_DIR_DECRYPT 0 - -#define CRYPTO_UBICOM32_PRIORITY 300 -#define CRYPTO_UBICOM32_COMPOSITE_PRIORITY 400 - -#define HW_CRYPTO_PS_MAX_IDLE_MS 100 /* idle time (ms) before shuting down sm */ - -extern spinlock_t crypto_ubicom32_lock; -extern bool crypto_ubicom32_inited; -extern volatile bool crypto_ubicom32_on; -extern volatile unsigned long crypto_ubicom32_last_use; -extern struct timer_list crypto_ubicom32_ps_timer; -extern void crypto_ubicom32_ps_check(unsigned long data); - -#define SEC_COPY_2W(t, s) \ - asm volatile ( \ - " move.4 0(%0), 0(%1) \n\t" \ - " move.4 4(%0), 4(%1) \n\t" \ - \ - : \ - : "a" (t), "a" (s) \ - ) - -#define SEC_COPY_4W(t, s) \ - asm volatile ( \ - " move.4 0(%0), 0(%1) \n\t" \ - " move.4 4(%0), 4(%1) \n\t" \ - " move.4 8(%0), 8(%1) \n\t" \ - " move.4 12(%0), 12(%1) \n\t" \ - : \ - : "a" (t), "a" (s) \ - ) - -#define SEC_COPY_5W(t, s) \ - asm volatile ( \ - " move.4 0(%0), 0(%1) \n\t" \ - " move.4 4(%0), 4(%1) \n\t" \ - " move.4 8(%0), 8(%1) \n\t" \ - " move.4 12(%0), 12(%1) \n\t" \ - " move.4 16(%0), 16(%1) \n\t" \ - : \ - : "a" (t), "a" (s) \ - ) - -#define SEC_SET_KEY_2W(x) \ - asm volatile ( \ - " ; write key to Security Keyblock \n\t" \ - " move.4 0x10(%0), 0(%1) \n\t" \ - " move.4 0x14(%0), 4(%1) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_SET_KEY_4W(x) \ - asm volatile ( \ - " ; write key to Security Keyblock \n\t" \ - " move.4 0x10(%0), 0(%1) \n\t" \ - " move.4 0x14(%0), 4(%1) \n\t" \ - " move.4 0x18(%0), 8(%1) \n\t" \ - " move.4 0x1c(%0), 12(%1) \n\t" \ - : \ - : "a"(SECURITY_BASE), "a"(x) \ - ) - -#define SEC_SET_KEY_6W(x) \ - asm volatile ( \ - " ; write key to Security Keyblock \n\t" \ - " move.4 0x10(%0), 0(%1) \n\t" \ - " move.4 0x14(%0), 4(%1) \n\t" \ - " move.4 0x18(%0), 8(%1) \n\t" \ - " move.4 0x1c(%0), 12(%1) \n\t" \ - " move.4 0x20(%0), 16(%1) \n\t" \ - " move.4 0x24(%0), 20(%1) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_SET_KEY_8W(x) \ - asm volatile ( \ - " ; write key to Security Keyblock \n\t" \ - " move.4 0x10(%0), 0(%1) \n\t" \ - " move.4 0x14(%0), 4(%1) \n\t" \ - " move.4 0x18(%0), 8(%1) \n\t" \ - " move.4 0x1c(%0), 12(%1) \n\t" \ - " move.4 0x20(%0), 16(%1) \n\t" \ - " move.4 0x24(%0), 20(%1) \n\t" \ - " move.4 0x28(%0), 24(%1) \n\t" \ - " move.4 0x2c(%0), 28(%1) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_SET_KEY_64(k) SEC_SET_KEY_2W(k) -#define SEC_SET_KEY_128(k) SEC_SET_KEY_4W(k) -#define SEC_SET_KEY_192(k) SEC_SET_KEY_6W(k) -#define SEC_SET_KEY_256(k) SEC_SET_KEY_8W(k) - -#define DES_SET_KEY(x) SEC_SET_KEY_64(x) -#define DES3_SET_KEY(x) SEC_SET_KEY_192(x) - -#define SEC_SET_INPUT_2W(x) \ - asm volatile ( \ - " ; write key to Security Keyblock \n\t" \ - " move.4 0x30(%0), 0(%1) \n\t" \ - " move.4 0x34(%0), 4(%1) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_GET_OUTPUT_2W(x) \ - asm volatile ( \ - " ; write key to Security Keyblock \n\t" \ - " move.4 0(%1), 0x50(%0) \n\t" \ - " move.4 4(%1), 0x54(%0) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_SET_INPUT_4W(x) \ - asm volatile ( \ - " ; write key to Security Keyblock \n\t" \ - " move.4 0x30(%0), 0(%1) \n\t" \ - " move.4 0x34(%0), 4(%1) \n\t" \ - " move.4 0x38(%0), 8(%1) \n\t" \ - " move.4 0x3c(%0), 12(%1) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_GET_OUTPUT_4W(x) \ - asm volatile ( \ - " ; read output from Security Keyblock \n\t" \ - " move.4 0(%1), 0x50(%0) \n\t" \ - " move.4 4(%1), 0x54(%0) \n\t" \ - " move.4 8(%1), 0x58(%0) \n\t" \ - " move.4 12(%1), 0x5c(%0) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_SET_IV_4W(x) \ - asm volatile ( \ - " ; write IV to Security Keyblock \n\t" \ - " move.4 0x50(%0), 0(%1) \n\t" \ - " move.4 0x54(%0), 4(%1) \n\t" \ - " move.4 0x58(%0), 8(%1) \n\t" \ - " move.4 0x5c(%0), 12(%1) \n\t" \ - : \ - : "a" (SECURITY_BASE), "a" (x) \ - ) - -#define SEC_PIPE_FLUSH() asm volatile ( " pipe_flush 0 \n\t" ) - -static inline void hw_crypto_set_ctrl(uint32_t c) -{ - asm volatile ( - " move.4 0(%0), %1 \n\t" - : - : "a" (SECURITY_BASE + SECURITY_CTRL), "d" (c) - ); -} - -static inline void hw_crypto_ps_start(void) -{ - crypto_ubicom32_ps_timer.expires = jiffies + msecs_to_jiffies(HW_CRYPTO_PS_MAX_IDLE_MS >> 1); - add_timer(&crypto_ubicom32_ps_timer); -} - -static inline void hw_crypto_turn_on(void) -{ - asm volatile ( - " moveai A4, %0 \n\t" - " bset 0x0(A4), 0x0(A4), %1 \n\t" - " cycles 11 \n\t" - : - : "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO) - : "a4", "cc" - ); - crypto_ubicom32_on = true; -} - -static inline void hw_crypto_turn_off(void) -{ - asm volatile ( - " moveai A4, %0 \n\t" - " bclr 0x0(A4), 0x0(A4), %1 \n\t" - : - : "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO) - : "a4", "cc" - ); - crypto_ubicom32_on = false; -} - -/* - * hw_crypto_check - * Most probably hw crypto is called in clusters and it makes no sense to turn it off - * and on and waster 13 cycles every time. - */ -static inline void hw_crypto_check(void) -{ - if (likely(crypto_ubicom32_on)) { - return; - } - crypto_ubicom32_last_use = jiffies; - hw_crypto_turn_on(); - hw_crypto_ps_start(); -} - -/* - * hw_crypto_ps_init - * Init power save timer - */ -static inline void hw_crypto_ps_init(void) -{ - init_timer_deferrable(&crypto_ubicom32_ps_timer); - crypto_ubicom32_ps_timer.function = crypto_ubicom32_ps_check; - crypto_ubicom32_ps_timer.data = 0; -} - -/* - * hw_crypto_init() - * Initialize OCP security module lock and disables its clock. - */ -static inline void hw_crypto_init(void) -{ - if (!crypto_ubicom32_inited) { - crypto_ubicom32_inited = true; - spin_lock_init(&crypto_ubicom32_lock); - hw_crypto_ps_init(); - hw_crypto_turn_off(); - } -} - -/* - * hw_crypto_lock() - * Locks the OCP security module and enables its clock. - */ -static inline void hw_crypto_lock(void) -{ - spin_lock_bh(&crypto_ubicom32_lock); -} - -/* - * hw_crypto_unlock() - * Unlocks the OCP security module and disables its clock. - */ -static inline void hw_crypto_unlock(void) -{ - crypto_ubicom32_last_use = jiffies; - spin_unlock_bh(&crypto_ubicom32_lock); -} - -#define CONFIG_CRYPTO_UBICOM32_DEBUG 1 - -#ifdef CONFIG_CRYPTO_UBICOM32_DEBUG -static inline void hex_dump(void *buf, int b_size, const char *msg) -{ - u8 *b = (u8 *)buf; - int i; - if (msg) { - printk("%s:\t", msg); - } - - for (i=0; i < b_size; i++) { - printk("%02x ", b[i]); - if ((i & 3) == 3) { - printk(" "); - } - if ((i & 31) == 31) { - printk("\n"); - } - } - printk("\n"); -} -#define UBICOM32_SEC_DUMP(a, b, c) hex_dump(a, b, c) -#else -#define UBICOM32_SEC_DUMP(a, b, c) -#endif - -#endif /* _CRYPTO_ARCH_UBICOM32_CRYPT_H */ |