[PATCH] s390: in-kernel crypto rename

Replace all references to z990 by s390 in the in-kernel crypto files in
arch/s390/crypto.  The code is not specific to a particular machine (z990) but
to the s390 platform.  Big diff, does nothing..

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 126 insertions, 117 deletions

diff --git a/arch/s390/crypto/crypt_z990.h b/arch/s390/crypto/crypt_s390.h
index 4df660b99e5a..4d24f6689755 100644
--- a/arch/s390/crypto/crypt_z990.h
+++ b/arch/s390/crypto/crypt_s390.h
@@ -1,7 +1,7 @@
 /*
  * Cryptographic API.
  *
- * Support for z990 cryptographic instructions.
+ * Support for s390 cryptographic instructions.
  *
  *   Copyright (C) 2003 IBM Deutschland GmbH, IBM Corporation
  *   Author(s): Thomas Spatzier (tspat@de.ibm.com)
@@ -12,76 +12,86 @@
  * any later version.
  *
  */
-#ifndef _CRYPTO_ARCH_S390_CRYPT_Z990_H
-#define _CRYPTO_ARCH_S390_CRYPT_Z990_H
+#ifndef _CRYPTO_ARCH_S390_CRYPT_S390_H
+#define _CRYPTO_ARCH_S390_CRYPT_S390_H
 
 #include <asm/errno.h>
 
-#define CRYPT_Z990_OP_MASK 0xFF00
-#define CRYPT_Z990_FUNC_MASK 0x00FF
+#define CRYPT_S390_OP_MASK 0xFF00
+#define CRYPT_S390_FUNC_MASK 0x00FF
 
-
-/*z990 cryptographic operations*/
-enum crypt_z990_operations {
-	CRYPT_Z990_KM   = 0x0100,
-	CRYPT_Z990_KMC  = 0x0200,
-	CRYPT_Z990_KIMD = 0x0300,
-	CRYPT_Z990_KLMD = 0x0400,
-	CRYPT_Z990_KMAC = 0x0500
+/* s930 cryptographic operations */
+enum crypt_s390_operations {
+	CRYPT_S390_KM   = 0x0100,
+	CRYPT_S390_KMC  = 0x0200,
+	CRYPT_S390_KIMD = 0x0300,
+	CRYPT_S390_KLMD = 0x0400,
+	CRYPT_S390_KMAC = 0x0500
 };
 
-/*function codes for KM (CIPHER MESSAGE) instruction*/
-enum crypt_z990_km_func {
-	KM_QUERY            = CRYPT_Z990_KM | 0,
-	KM_DEA_ENCRYPT      = CRYPT_Z990_KM | 1,
-	KM_DEA_DECRYPT      = CRYPT_Z990_KM | 1 | 0x80, //modifier bit->decipher
-	KM_TDEA_128_ENCRYPT = CRYPT_Z990_KM | 2,
-	KM_TDEA_128_DECRYPT = CRYPT_Z990_KM | 2 | 0x80,
-	KM_TDEA_192_ENCRYPT = CRYPT_Z990_KM | 3,
-	KM_TDEA_192_DECRYPT = CRYPT_Z990_KM | 3 | 0x80,
+/* function codes for KM (CIPHER MESSAGE) instruction
+ * 0x80 is the decipher modifier bit
+ */
+enum crypt_s390_km_func {
+	KM_QUERY            = CRYPT_S390_KM | 0,
+	KM_DEA_ENCRYPT      = CRYPT_S390_KM | 1,
+	KM_DEA_DECRYPT      = CRYPT_S390_KM | 1 | 0x80,
+	KM_TDEA_128_ENCRYPT = CRYPT_S390_KM | 2,
+	KM_TDEA_128_DECRYPT = CRYPT_S390_KM | 2 | 0x80,
+	KM_TDEA_192_ENCRYPT = CRYPT_S390_KM | 3,
+	KM_TDEA_192_DECRYPT = CRYPT_S390_KM | 3 | 0x80,
 };
 
-/*function codes for KMC (CIPHER MESSAGE WITH CHAINING) instruction*/
-enum crypt_z990_kmc_func {
-	KMC_QUERY            = CRYPT_Z990_KMC | 0,
-	KMC_DEA_ENCRYPT      = CRYPT_Z990_KMC | 1,
-	KMC_DEA_DECRYPT      = CRYPT_Z990_KMC | 1 | 0x80, //modifier bit->decipher
-	KMC_TDEA_128_ENCRYPT = CRYPT_Z990_KMC | 2,
-	KMC_TDEA_128_DECRYPT = CRYPT_Z990_KMC | 2 | 0x80,
-	KMC_TDEA_192_ENCRYPT = CRYPT_Z990_KMC | 3,
-	KMC_TDEA_192_DECRYPT = CRYPT_Z990_KMC | 3 | 0x80,
+/* function codes for KMC (CIPHER MESSAGE WITH CHAINING)
+ * instruction
+ */
+enum crypt_s390_kmc_func {
+	KMC_QUERY            = CRYPT_S390_KMC | 0,
+	KMC_DEA_ENCRYPT      = CRYPT_S390_KMC | 1,
+	KMC_DEA_DECRYPT      = CRYPT_S390_KMC | 1 | 0x80,
+	KMC_TDEA_128_ENCRYPT = CRYPT_S390_KMC | 2,
+	KMC_TDEA_128_DECRYPT = CRYPT_S390_KMC | 2 | 0x80,
+	KMC_TDEA_192_ENCRYPT = CRYPT_S390_KMC | 3,
+	KMC_TDEA_192_DECRYPT = CRYPT_S390_KMC | 3 | 0x80,
 };
 
-/*function codes for KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) instruction*/
-enum crypt_z990_kimd_func {
-	KIMD_QUERY   = CRYPT_Z990_KIMD | 0,
-	KIMD_SHA_1   = CRYPT_Z990_KIMD | 1,
+/* function codes for KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
+ * instruction
+ */
+enum crypt_s390_kimd_func {
+	KIMD_QUERY   = CRYPT_S390_KIMD | 0,
+	KIMD_SHA_1   = CRYPT_S390_KIMD | 1,
 };
 
-/*function codes for KLMD (COMPUTE LAST MESSAGE DIGEST) instruction*/
-enum crypt_z990_klmd_func {
-	KLMD_QUERY   = CRYPT_Z990_KLMD | 0,
-	KLMD_SHA_1   = CRYPT_Z990_KLMD | 1,
+/* function codes for KLMD (COMPUTE LAST MESSAGE DIGEST)
+ * instruction
+ */
+enum crypt_s390_klmd_func {
+	KLMD_QUERY   = CRYPT_S390_KLMD | 0,
+	KLMD_SHA_1   = CRYPT_S390_KLMD | 1,
 };
 
-/*function codes for KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) instruction*/
-enum crypt_z990_kmac_func {
-	KMAC_QUERY    = CRYPT_Z990_KMAC | 0,
-	KMAC_DEA      = CRYPT_Z990_KMAC | 1,
-	KMAC_TDEA_128 = CRYPT_Z990_KMAC | 2,
-	KMAC_TDEA_192 = CRYPT_Z990_KMAC | 3
+/* function codes for KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
+ * instruction
+ */
+enum crypt_s390_kmac_func {
+	KMAC_QUERY    = CRYPT_S390_KMAC | 0,
+	KMAC_DEA      = CRYPT_S390_KMAC | 1,
+	KMAC_TDEA_128 = CRYPT_S390_KMAC | 2,
+	KMAC_TDEA_192 = CRYPT_S390_KMAC | 3
 };
 
-/*status word for z990 crypto instructions' QUERY functions*/
-struct crypt_z990_query_status {
+/* status word for s390 crypto instructions' QUERY functions */
+struct crypt_s390_query_status {
 	u64 high;
 	u64 low;
 };
 
 /*
- * Standard fixup and ex_table sections for crypt_z990 inline functions.
- * label 0: the z990 crypto operation
- * label 1: just after 1 to catch illegal operation exception on non-z990
+ * Standard fixup and ex_table sections for crypt_s390 inline functions.
+ * label 0: the s390 crypto operation
+ * label 1: just after 1 to catch illegal operation exception
+ *          (unsupported model)
  * label 6: the return point after fixup
  * label 7: set error value if exception _in_ crypto operation
  * label 8: set error value if illegal operation exception
@@ -89,7 +99,7 @@ struct crypt_z990_query_status {
  * [ERR] is the error code value
  */
 #ifndef __s390x__
-#define __crypt_z990_fixup \
+#define __crypt_s390_fixup \
 	".section .fixup,\"ax\" \n"	\
 	"7:	lhi	%0,%h[e1] \n"	\
 	"	bras	1,9f \n"	\
@@ -106,7 +116,7 @@ struct crypt_z990_query_status {
 	"	.long	1b,8b \n"	\
 	".previous"
 #else /* __s390x__ */
-#define __crypt_z990_fixup \
+#define __crypt_s390_fixup \
 	".section .fixup,\"ax\" \n"	\
 	"7:	lhi	%0,%h[e1] \n"	\
 	"	jg	6b \n"		\
@@ -121,22 +131,22 @@ struct crypt_z990_query_status {
 #endif /* __s390x__ */
 
 /*
- * Standard code for setting the result of z990 crypto instructions.
+ * Standard code for setting the result of s390 crypto instructions.
  * %0: the register which will receive the result
  * [result]: the register containing the result (e.g. second operand length
  * to compute number of processed bytes].
  */
 #ifndef __s390x__
-#define __crypt_z990_set_result \
+#define __crypt_s390_set_result \
 	"	lr	%0,%[result] \n"
 #else /* __s390x__ */
-#define __crypt_z990_set_result \
+#define __crypt_s390_set_result \
 	"	lgr	%0,%[result] \n"
 #endif
 
 /*
- * Executes the KM (CIPHER MESSAGE) operation of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_km_func
+ * Executes the KM (CIPHER MESSAGE) operation of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_km_func
  * @param param: address of parameter block; see POP for details on each func
  * @param dest: address of destination memory area
  * @param src: address of source memory area
@@ -145,9 +155,9 @@ struct crypt_z990_query_status {
  * 	for encryption/decryption funcs
  */
 static inline int
-crypt_z990_km(long func, void* param, u8* dest, const u8* src, long src_len)
+crypt_s390_km(long func, void* param, u8* dest, const u8* src, long src_len)
 {
-	register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
+	register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
 	register void* __param asm("1") = param;
 	register u8* __dest asm("4") = dest;
 	register const u8* __src asm("2") = src;
@@ -156,26 +166,26 @@ crypt_z990_km(long func, void* param, u8* dest, const u8* src, long src_len)
 
 	ret = 0;
 	__asm__ __volatile__ (
-		"0:	.insn	rre,0xB92E0000,%1,%2 \n" //KM opcode
-		"1:	brc	1,0b \n" //handle partial completion
-		__crypt_z990_set_result
+		"0:	.insn	rre,0xB92E0000,%1,%2 \n" /* KM opcode */
+		"1:	brc	1,0b \n" /* handle partial completion */
+		__crypt_s390_set_result
 		"6:	\n"
-		__crypt_z990_fixup
+		__crypt_s390_fixup
 		: "+d" (ret), "+a" (__dest), "+a" (__src),
 		  [result] "+d" (__src_len)
 		: [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
 		  "a" (__param)
 		: "cc", "memory"
 	);
-	if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
+	if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
 		ret = src_len - ret;
 	}
 	return ret;
 }
 
 /*
- * Executes the KMC (CIPHER MESSAGE WITH CHAINING) operation of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_kmc_func
+ * Executes the KMC (CIPHER MESSAGE WITH CHAINING) operation of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_kmc_func
  * @param param: address of parameter block; see POP for details on each func
  * @param dest: address of destination memory area
  * @param src: address of source memory area
@@ -184,9 +194,9 @@ crypt_z990_km(long func, void* param, u8* dest, const u8* src, long src_len)
  * 	for encryption/decryption funcs
  */
 static inline int
-crypt_z990_kmc(long func, void* param, u8* dest, const u8* src, long src_len)
+crypt_s390_kmc(long func, void* param, u8* dest, const u8* src, long src_len)
 {
-	register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
+	register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
 	register void* __param asm("1") = param;
 	register u8* __dest asm("4") = dest;
 	register const u8* __src asm("2") = src;
@@ -195,18 +205,18 @@ crypt_z990_kmc(long func, void* param, u8* dest, const u8* src, long src_len)
 
 	ret = 0;
 	__asm__ __volatile__ (
-		"0:	.insn	rre,0xB92F0000,%1,%2 \n" //KMC opcode
-		"1:	brc	1,0b \n" //handle partial completion
-		__crypt_z990_set_result
+		"0:	.insn	rre,0xB92F0000,%1,%2 \n" /* KMC opcode */
+		"1:	brc	1,0b \n" /* handle partial completion */
+		__crypt_s390_set_result
 		"6:	\n"
-		__crypt_z990_fixup
+		__crypt_s390_fixup
 		: "+d" (ret), "+a" (__dest), "+a" (__src),
 		  [result] "+d" (__src_len)
 		: [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
 		  "a" (__param)
 		: "cc", "memory"
 	);
-	if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
+	if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
 		ret = src_len - ret;
 	}
 	return ret;
@@ -214,8 +224,8 @@ crypt_z990_kmc(long func, void* param, u8* dest, const u8* src, long src_len)
 
 /*
  * Executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) operation
- * of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_kimd_func
+ * of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_kimd_func
  * @param param: address of parameter block; see POP for details on each func
  * @param src: address of source memory area
  * @param src_len: length of src operand in bytes
@@ -223,9 +233,9 @@ crypt_z990_kmc(long func, void* param, u8* dest, const u8* src, long src_len)
  * 	for digest funcs
  */
 static inline int
-crypt_z990_kimd(long func, void* param, const u8* src, long src_len)
+crypt_s390_kimd(long func, void* param, const u8* src, long src_len)
 {
-	register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
+	register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
 	register void* __param asm("1") = param;
 	register const u8* __src asm("2") = src;
 	register long __src_len asm("3") = src_len;
@@ -233,25 +243,25 @@ crypt_z990_kimd(long func, void* param, const u8* src, long src_len)
 
 	ret = 0;
 	__asm__ __volatile__ (
-		"0:	.insn	rre,0xB93E0000,%1,%1 \n" //KIMD opcode
-		"1:	brc	1,0b \n" /*handle partical completion of kimd*/
-		__crypt_z990_set_result
+		"0:	.insn	rre,0xB93E0000,%1,%1 \n" /* KIMD opcode */
+		"1:	brc	1,0b \n" /* handle partical completion */
+		__crypt_s390_set_result
 		"6:	\n"
-		__crypt_z990_fixup
+		__crypt_s390_fixup
 		: "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
 		: [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
 		  "a" (__param)
 		: "cc", "memory"
 	);
-	if (ret >= 0 && (func & CRYPT_Z990_FUNC_MASK)){
+	if (ret >= 0 && (func & CRYPT_S390_FUNC_MASK)){
 		ret = src_len - ret;
 	}
 	return ret;
 }
 
 /*
- * Executes the KLMD (COMPUTE LAST MESSAGE DIGEST) operation of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_klmd_func
+ * Executes the KLMD (COMPUTE LAST MESSAGE DIGEST) operation of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_klmd_func
  * @param param: address of parameter block; see POP for details on each func
  * @param src: address of source memory area
  * @param src_len: length of src operand in bytes
@@ -259,9 +269,9 @@ crypt_z990_kimd(long func, void* param, const u8* src, long src_len)
  * 	for digest funcs
  */
 static inline int
-crypt_z990_klmd(long func, void* param, const u8* src, long src_len)
+crypt_s390_klmd(long func, void* param, const u8* src, long src_len)
 {
-	register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
+	register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
 	register void* __param asm("1") = param;
 	register const u8* __src asm("2") = src;
 	register long __src_len asm("3") = src_len;
@@ -269,17 +279,17 @@ crypt_z990_klmd(long func, void* param, const u8* src, long src_len)
 
 	ret = 0;
 	__asm__ __volatile__ (
-		"0:	.insn	rre,0xB93F0000,%1,%1 \n" //KLMD opcode
-		"1:	brc	1,0b \n" /*handle partical completion of klmd*/
-		__crypt_z990_set_result
+		"0:	.insn	rre,0xB93F0000,%1,%1 \n" /* KLMD opcode */
+		"1:	brc	1,0b \n" /* handle partical completion */
+		__crypt_s390_set_result
 		"6:	\n"
-		__crypt_z990_fixup
+		__crypt_s390_fixup
 		: "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
 		: [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
 		  "a" (__param)
 		: "cc", "memory"
 	);
-	if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
+	if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
 		ret = src_len - ret;
 	}
 	return ret;
@@ -287,8 +297,8 @@ crypt_z990_klmd(long func, void* param, const u8* src, long src_len)
 
 /*
  * Executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) operation
- * of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_klmd_func
+ * of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_klmd_func
  * @param param: address of parameter block; see POP for details on each func
  * @param src: address of source memory area
  * @param src_len: length of src operand in bytes
@@ -296,9 +306,9 @@ crypt_z990_klmd(long func, void* param, const u8* src, long src_len)
  * 	for digest funcs
  */
 static inline int
-crypt_z990_kmac(long func, void* param, const u8* src, long src_len)
+crypt_s390_kmac(long func, void* param, const u8* src, long src_len)
 {
-	register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
+	register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
 	register void* __param asm("1") = param;
 	register const u8* __src asm("2") = src;
 	register long __src_len asm("3") = src_len;
@@ -306,58 +316,58 @@ crypt_z990_kmac(long func, void* param, const u8* src, long src_len)
 
 	ret = 0;
 	__asm__ __volatile__ (
-		"0:	.insn	rre,0xB91E0000,%5,%5 \n" //KMAC opcode
-		"1:	brc	1,0b \n" /*handle partical completion of klmd*/
-		__crypt_z990_set_result
+		"0:	.insn	rre,0xB91E0000,%5,%5 \n" /* KMAC opcode */
+		"1:	brc	1,0b \n" /* handle partical completion */
+		__crypt_s390_set_result
 		"6:	\n"
-		__crypt_z990_fixup
+		__crypt_s390_fixup
 		: "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
 		: [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
 		  "a" (__param)
 		: "cc", "memory"
 	);
-	if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
+	if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
 		ret = src_len - ret;
 	}
 	return ret;
 }
 
 /**
- * Tests if a specific z990 crypto function is implemented on the machine.
+ * Tests if a specific crypto function is implemented on the machine.
  * @param func:	the function code of the specific function; 0 if op in general
  * @return	1 if func available; 0 if func or op in general not available
  */
 static inline int
-crypt_z990_func_available(int func)
+crypt_s390_func_available(int func)
 {
 	int ret;
 
-	struct crypt_z990_query_status status = {
+	struct crypt_s390_query_status status = {
 		.high = 0,
 		.low = 0
 	};
-	switch (func & CRYPT_Z990_OP_MASK){
-		case CRYPT_Z990_KM:
-			ret = crypt_z990_km(KM_QUERY, &status, NULL, NULL, 0);
+	switch (func & CRYPT_S390_OP_MASK){
+		case CRYPT_S390_KM:
+			ret = crypt_s390_km(KM_QUERY, &status, NULL, NULL, 0);
 			break;
-		case CRYPT_Z990_KMC:
-			ret = crypt_z990_kmc(KMC_QUERY, &status, NULL, NULL, 0);
+		case CRYPT_S390_KMC:
+			ret = crypt_s390_kmc(KMC_QUERY, &status, NULL, NULL, 0);
 			break;
-		case CRYPT_Z990_KIMD:
-			ret = crypt_z990_kimd(KIMD_QUERY, &status, NULL, 0);
+		case CRYPT_S390_KIMD:
+			ret = crypt_s390_kimd(KIMD_QUERY, &status, NULL, 0);
 			break;
-		case CRYPT_Z990_KLMD:
-			ret = crypt_z990_klmd(KLMD_QUERY, &status, NULL, 0);
+		case CRYPT_S390_KLMD:
+			ret = crypt_s390_klmd(KLMD_QUERY, &status, NULL, 0);
 			break;
-		case CRYPT_Z990_KMAC:
-			ret = crypt_z990_kmac(KMAC_QUERY, &status, NULL, 0);
+		case CRYPT_S390_KMAC:
+			ret = crypt_s390_kmac(KMAC_QUERY, &status, NULL, 0);
 			break;
 		default:
 			ret = 0;
 			return ret;
 	}
 	if (ret >= 0){
-		func &= CRYPT_Z990_FUNC_MASK;
+		func &= CRYPT_S390_FUNC_MASK;
 		func &= 0x7f; //mask modifier bit
 		if (func < 64){
 			ret = (status.high >> (64 - func - 1)) & 0x1;
@@ -370,5 +380,4 @@ crypt_z990_func_available(int func)
 	return ret;
 }
 
-
-#endif // _CRYPTO_ARCH_S390_CRYPT_Z990_H
+#endif // _CRYPTO_ARCH_S390_CRYPT_S390_H