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-rw-r--r--arch/mips/cavium-octeon/crypto/octeon-crypto.h224
1 files changed, 224 insertions, 0 deletions
diff --git a/arch/mips/cavium-octeon/crypto/octeon-crypto.h b/arch/mips/cavium-octeon/crypto/octeon-crypto.h
new file mode 100644
index 0000000000..cb68f9e284
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+++ b/arch/mips/cavium-octeon/crypto/octeon-crypto.h
@@ -0,0 +1,224 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012-2013 Cavium Inc., All Rights Reserved.
+ *
+ * MD5/SHA1/SHA256/SHA512 instruction definitions added by
+ * Aaro Koskinen <aaro.koskinen@iki.fi>.
+ *
+ */
+#ifndef __LINUX_OCTEON_CRYPTO_H
+#define __LINUX_OCTEON_CRYPTO_H
+
+#include <linux/sched.h>
+#include <asm/mipsregs.h>
+
+#define OCTEON_CR_OPCODE_PRIORITY 300
+
+extern unsigned long octeon_crypto_enable(struct octeon_cop2_state *state);
+extern void octeon_crypto_disable(struct octeon_cop2_state *state,
+ unsigned long flags);
+
+/*
+ * Macros needed to implement MD5/SHA1/SHA256:
+ */
+
+/*
+ * The index can be 0-1 (MD5) or 0-2 (SHA1), 0-3 (SHA256).
+ */
+#define write_octeon_64bit_hash_dword(value, index) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x0048+" STR(index) \
+ : \
+ : [rt] "d" (cpu_to_be64(value))); \
+} while (0)
+
+/*
+ * The index can be 0-1 (MD5) or 0-2 (SHA1), 0-3 (SHA256).
+ */
+#define read_octeon_64bit_hash_dword(index) \
+({ \
+ __be64 __value; \
+ \
+ __asm__ __volatile__ ( \
+ "dmfc2 %[rt],0x0048+" STR(index) \
+ : [rt] "=d" (__value) \
+ : ); \
+ \
+ be64_to_cpu(__value); \
+})
+
+/*
+ * The index can be 0-6.
+ */
+#define write_octeon_64bit_block_dword(value, index) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x0040+" STR(index) \
+ : \
+ : [rt] "d" (cpu_to_be64(value))); \
+} while (0)
+
+/*
+ * The value is the final block dword (64-bit).
+ */
+#define octeon_md5_start(value) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x4047" \
+ : \
+ : [rt] "d" (cpu_to_be64(value))); \
+} while (0)
+
+/*
+ * The value is the final block dword (64-bit).
+ */
+#define octeon_sha1_start(value) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x4057" \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * The value is the final block dword (64-bit).
+ */
+#define octeon_sha256_start(value) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x404f" \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * Macros needed to implement SHA512:
+ */
+
+/*
+ * The index can be 0-7.
+ */
+#define write_octeon_64bit_hash_sha512(value, index) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x0250+" STR(index) \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * The index can be 0-7.
+ */
+#define read_octeon_64bit_hash_sha512(index) \
+({ \
+ u64 __value; \
+ \
+ __asm__ __volatile__ ( \
+ "dmfc2 %[rt],0x0250+" STR(index) \
+ : [rt] "=d" (__value) \
+ : ); \
+ \
+ __value; \
+})
+
+/*
+ * The index can be 0-14.
+ */
+#define write_octeon_64bit_block_sha512(value, index) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x0240+" STR(index) \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * The value is the final block word (64-bit).
+ */
+#define octeon_sha512_start(value) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x424f" \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * The value is the final block dword (64-bit).
+ */
+#define octeon_sha1_start(value) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x4057" \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * The value is the final block dword (64-bit).
+ */
+#define octeon_sha256_start(value) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x404f" \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * Macros needed to implement SHA512:
+ */
+
+/*
+ * The index can be 0-7.
+ */
+#define write_octeon_64bit_hash_sha512(value, index) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x0250+" STR(index) \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * The index can be 0-7.
+ */
+#define read_octeon_64bit_hash_sha512(index) \
+({ \
+ u64 __value; \
+ \
+ __asm__ __volatile__ ( \
+ "dmfc2 %[rt],0x0250+" STR(index) \
+ : [rt] "=d" (__value) \
+ : ); \
+ \
+ __value; \
+})
+
+/*
+ * The index can be 0-14.
+ */
+#define write_octeon_64bit_block_sha512(value, index) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x0240+" STR(index) \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+/*
+ * The value is the final block word (64-bit).
+ */
+#define octeon_sha512_start(value) \
+do { \
+ __asm__ __volatile__ ( \
+ "dmtc2 %[rt],0x424f" \
+ : \
+ : [rt] "d" (value)); \
+} while (0)
+
+#endif /* __LINUX_OCTEON_CRYPTO_H */