Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (45 commits)
  crypto: caam - add support for sha512 variants of existing AEAD algorithms
  crypto: caam - remove unused authkeylen from caam_ctx
  crypto: caam - fix decryption shared vs. non-shared key setting
  crypto: caam - platform_bus_type migration
  crypto: aesni-intel - fix aesni build on i386
  crypto: aesni-intel - Merge with fpu.ko
  crypto: mv_cesa - make count_sgs() null-pointer proof
  crypto: mv_cesa - copy remaining bytes to SRAM only when needed
  crypto: mv_cesa - move digest state initialisation to a better place
  crypto: mv_cesa - fill inner/outer IV fields only in HMAC case
  crypto: mv_cesa - refactor copy_src_to_buf()
  crypto: mv_cesa - no need to save digest state after the last chunk
  crypto: mv_cesa - print a warning when registration of AES algos fail
  crypto: mv_cesa - drop this call to mv_hash_final from mv_hash_finup
  crypto: mv_cesa - the descriptor pointer register needs to be set just once
  crypto: mv_cesa - use ablkcipher_request_cast instead of the manual container_of
  crypto: caam - fix printk recursion for long error texts
  crypto: caam - remove unused keylen from session context
  hwrng: amd - enable AMD hw rnd driver for Maple PPC boards
  hwrng: amd - manage resource allocation
  ...

1 files changed, 108 insertions, 4 deletions

diff --git a/arch/s390/crypto/crypt_s390.h b/arch/s390/crypto/crypt_s390.h
index 7ee9a1b4ad9f..49676771bd66 100644
--- a/arch/s390/crypto/crypt_s390.h
+++ b/arch/s390/crypto/crypt_s390.h
@@ -24,13 +24,18 @@
 #define CRYPT_S390_PRIORITY 300
 #define CRYPT_S390_COMPOSITE_PRIORITY 400
 
+#define CRYPT_S390_MSA	0x1
+#define CRYPT_S390_MSA3	0x2
+#define CRYPT_S390_MSA4	0x4
+
 /* s390 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
+	CRYPT_S390_KMAC = 0x0500,
+	CRYPT_S390_KMCTR = 0x0600
 };
 
 /*
@@ -51,6 +56,10 @@ enum crypt_s390_km_func {
 	KM_AES_192_DECRYPT  = CRYPT_S390_KM | 0x13 | 0x80,
 	KM_AES_256_ENCRYPT  = CRYPT_S390_KM | 0x14,
 	KM_AES_256_DECRYPT  = CRYPT_S390_KM | 0x14 | 0x80,
+	KM_XTS_128_ENCRYPT  = CRYPT_S390_KM | 0x32,
+	KM_XTS_128_DECRYPT  = CRYPT_S390_KM | 0x32 | 0x80,
+	KM_XTS_256_ENCRYPT  = CRYPT_S390_KM | 0x34,
+	KM_XTS_256_DECRYPT  = CRYPT_S390_KM | 0x34 | 0x80,
 };
 
 /*
@@ -75,6 +84,26 @@ enum crypt_s390_kmc_func {
 };
 
 /*
+ * function codes for KMCTR (CIPHER MESSAGE WITH COUNTER)
+ * instruction
+ */
+enum crypt_s390_kmctr_func {
+	KMCTR_QUERY            = CRYPT_S390_KMCTR | 0x0,
+	KMCTR_DEA_ENCRYPT      = CRYPT_S390_KMCTR | 0x1,
+	KMCTR_DEA_DECRYPT      = CRYPT_S390_KMCTR | 0x1 | 0x80,
+	KMCTR_TDEA_128_ENCRYPT = CRYPT_S390_KMCTR | 0x2,
+	KMCTR_TDEA_128_DECRYPT = CRYPT_S390_KMCTR | 0x2 | 0x80,
+	KMCTR_TDEA_192_ENCRYPT = CRYPT_S390_KMCTR | 0x3,
+	KMCTR_TDEA_192_DECRYPT = CRYPT_S390_KMCTR | 0x3 | 0x80,
+	KMCTR_AES_128_ENCRYPT  = CRYPT_S390_KMCTR | 0x12,
+	KMCTR_AES_128_DECRYPT  = CRYPT_S390_KMCTR | 0x12 | 0x80,
+	KMCTR_AES_192_ENCRYPT  = CRYPT_S390_KMCTR | 0x13,
+	KMCTR_AES_192_DECRYPT  = CRYPT_S390_KMCTR | 0x13 | 0x80,
+	KMCTR_AES_256_ENCRYPT  = CRYPT_S390_KMCTR | 0x14,
+	KMCTR_AES_256_DECRYPT  = CRYPT_S390_KMCTR | 0x14 | 0x80,
+};
+
+/*
  * function codes for KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
  * instruction
  */
@@ -83,6 +112,7 @@ enum crypt_s390_kimd_func {
 	KIMD_SHA_1   = CRYPT_S390_KIMD | 1,
 	KIMD_SHA_256 = CRYPT_S390_KIMD | 2,
 	KIMD_SHA_512 = CRYPT_S390_KIMD | 3,
+	KIMD_GHASH   = CRYPT_S390_KIMD | 65,
 };
 
 /*
@@ -284,6 +314,45 @@ static inline int crypt_s390_kmac(long func, void *param,
 }
 
 /**
+ * crypt_s390_kmctr:
+ * @func: the function code passed to KMCTR; see crypt_s390_kmctr_func
+ * @param: address of parameter block; see POP for details on each func
+ * @dest: address of destination memory area
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ * @counter: address of counter value
+ *
+ * Executes the KMCTR (CIPHER MESSAGE WITH COUNTER) operation of the CPU.
+ *
+ * Returns -1 for failure, 0 for the query func, number of processed
+ * bytes for encryption/decryption funcs
+ */
+static inline int crypt_s390_kmctr(long func, void *param, u8 *dest,
+				 const u8 *src, long src_len, u8 *counter)
+{
+	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;
+	register u8 *__dest asm("4") = dest;
+	register u8 *__ctr asm("6") = counter;
+	int ret = -1;
+
+	asm volatile(
+		"0:	.insn	rrf,0xb92d0000,%3,%1,%4,0 \n" /* KMCTR opcode */
+		"1:	brc	1,0b \n" /* handle partial completion */
+		"	la	%0,0\n"
+		"2:\n"
+		EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+		: "+d" (ret), "+a" (__src), "+d" (__src_len), "+a" (__dest),
+		  "+a" (__ctr)
+		: "d" (__func), "a" (__param) : "cc", "memory");
+	if (ret < 0)
+		return ret;
+	return (func & CRYPT_S390_FUNC_MASK) ? src_len - __src_len : __src_len;
+}
+
+/**
  * crypt_s390_func_available:
  * @func: the function code of the specific function; 0 if op in general
  *
@@ -291,13 +360,17 @@ static inline int crypt_s390_kmac(long func, void *param,
  *
  * Returns 1 if func available; 0 if func or op in general not available
  */
-static inline int crypt_s390_func_available(int func)
+static inline int crypt_s390_func_available(int func,
+					    unsigned int facility_mask)
 {
 	unsigned char status[16];
 	int ret;
 
-	/* check if CPACF facility (bit 17) is available */
-	if (!test_facility(17))
+	if (facility_mask & CRYPT_S390_MSA && !test_facility(17))
+		return 0;
+	if (facility_mask & CRYPT_S390_MSA3 && !test_facility(76))
+		return 0;
+	if (facility_mask & CRYPT_S390_MSA4 && !test_facility(77))
 		return 0;
 
 	switch (func & CRYPT_S390_OP_MASK) {
@@ -316,6 +389,10 @@ static inline int crypt_s390_func_available(int func)
 	case CRYPT_S390_KMAC:
 		ret = crypt_s390_kmac(KMAC_QUERY, &status, NULL, 0);
 		break;
+	case CRYPT_S390_KMCTR:
+		ret = crypt_s390_kmctr(KMCTR_QUERY, &status, NULL, NULL, 0,
+				       NULL);
+		break;
 	default:
 		return 0;
 	}
@@ -326,4 +403,31 @@ static inline int crypt_s390_func_available(int func)
 	return (status[func >> 3] & (0x80 >> (func & 7))) != 0;
 }
 
+/**
+ * crypt_s390_pcc:
+ * @func: the function code passed to KM; see crypt_s390_km_func
+ * @param: address of parameter block; see POP for details on each func
+ *
+ * Executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) operation of the CPU.
+ *
+ * Returns -1 for failure, 0 for success.
+ */
+static inline int crypt_s390_pcc(long func, void *param)
+{
+	register long __func asm("0") = func & 0x7f; /* encrypt or decrypt */
+	register void *__param asm("1") = param;
+	int ret = -1;
+
+	asm volatile(
+		"0:	.insn	rre,0xb92c0000,0,0 \n" /* PCC opcode */
+		"1:	brc	1,0b \n" /* handle partial completion */
+		"	la	%0,0\n"
+		"2:\n"
+		EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+		: "+d" (ret)
+		: "d" (__func), "a" (__param) : "cc", "memory");
+	return ret;
+}
+
+
 #endif	/* _CRYPTO_ARCH_S390_CRYPT_S390_H */