crypto: Kconfig - move powerpc entries to a submenu

Move CPU-specific crypto/Kconfig entries to arch/xxx/crypto/Kconfig
and create a submenu for them under the Crypto API menu.

Suggested-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Robert Elliott <elliott@hpe.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
new file mode 100644 (file)
index 0000000..74f5359
--- /dev/null
+++ b/arch/powerpc/crypto/Kconfig
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0
+
+menu "Accelerated Cryptographic Algorithms for CPU (powerpc)"
+
+config CRYPTO_CRC32C_VPMSUM
+       tristate "CRC32c CRC algorithm (powerpc64)"
+       depends on PPC64 && ALTIVEC
+       select CRYPTO_HASH
+       select CRC32
+       help
+         CRC32c algorithm implemented using vector polynomial multiply-sum
+         (vpmsum) instructions, introduced in POWER8. Enable on POWER8
+         and newer processors for improved performance.
+
+config CRYPTO_CRCT10DIF_VPMSUM
+       tristate "CRC32T10DIF powerpc64 hardware acceleration"
+       depends on PPC64 && ALTIVEC && CRC_T10DIF
+       select CRYPTO_HASH
+       help
+         CRC10T10DIF algorithm implemented using vector polynomial
+         multiply-sum (vpmsum) instructions, introduced in POWER8. Enable on
+         POWER8 and newer processors for improved performance.
+
+config CRYPTO_VPMSUM_TESTER
+       tristate "Powerpc64 vpmsum hardware acceleration tester"
+       depends on CRYPTO_CRCT10DIF_VPMSUM && CRYPTO_CRC32C_VPMSUM
+       help
+         Stress test for CRC32c and CRC-T10DIF algorithms implemented with
+         POWER8 vpmsum instructions.
+         Unless you are testing these algorithms, you don't need this.
+
+config CRYPTO_MD5_PPC
+       tristate "MD5 digest algorithm (PPC)"
+       depends on PPC
+       select CRYPTO_HASH
+       help
+         MD5 message digest algorithm (RFC1321) implemented
+         in PPC assembler.
+
+config CRYPTO_SHA1_PPC
+       tristate "SHA1 digest algorithm (powerpc)"
+       depends on PPC
+       help
+         This is the powerpc hardware accelerated implementation of the
+         SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
+
+config CRYPTO_SHA1_PPC_SPE
+       tristate "SHA1 digest algorithm (PPC SPE)"
+       depends on PPC && SPE
+       help
+         SHA-1 secure hash standard (DFIPS 180-4) implemented
+         using powerpc SPE SIMD instruction set.
+
+config CRYPTO_SHA256_PPC_SPE
+       tristate "SHA224 and SHA256 digest algorithm (PPC SPE)"
+       depends on PPC && SPE
+       select CRYPTO_SHA256
+       select CRYPTO_HASH
+       help
+         SHA224 and SHA256 secure hash standard (DFIPS 180-2)
+         implemented using powerpc SPE SIMD instruction set.
+
+config CRYPTO_AES_PPC_SPE
+       tristate "AES cipher algorithms (PPC SPE)"
+       depends on PPC && SPE
+       select CRYPTO_SKCIPHER
+       help
+         AES cipher algorithms (FIPS-197). Additionally the acceleration
+         for popular block cipher modes ECB, CBC, CTR and XTS is supported.
+         This module should only be used for low power (router) devices
+         without hardware AES acceleration (e.g. caam crypto). It reduces the
+         size of the AES tables from 16KB to 8KB + 256 bytes and mitigates
+         timining attacks. Nevertheless it might be not as secure as other
+         architecture specific assembler implementations that work on 1KB
+         tables or 256 bytes S-boxes.
+
+endmenu

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 85fa86f334f2a4500a7b83d6a8edbe8e17341d1e..5299929144b6d63dcdc05ae0d8f902e8d10df58a 100644 (file)
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -658,17 +658,6 @@ config CRYPTO_CRC32C_INTEL
          gain performance compared with software implementation.
          Module will be crc32c-intel.
 
-config CRYPTO_CRC32C_VPMSUM
-       tristate "CRC32c CRC algorithm (powerpc64)"
-       depends on PPC64 && ALTIVEC
-       select CRYPTO_HASH
-       select CRC32
-       help
-         CRC32c algorithm implemented using vector polynomial multiply-sum
-         (vpmsum) instructions, introduced in POWER8. Enable on POWER8
-         and newer processors for improved performance.
-
-
 config CRYPTO_CRC32C_SPARC64
        tristate "CRC32c CRC algorithm (SPARC64)"
        depends on SPARC64
@@ -762,28 +751,11 @@ config CRYPTO_CRCT10DIF_PCLMUL
          'crct10dif-pclmul' module, which is faster when computing the
          crct10dif checksum as compared with the generic table implementation.
 
-config CRYPTO_CRCT10DIF_VPMSUM
-       tristate "CRC32T10DIF powerpc64 hardware acceleration"
-       depends on PPC64 && ALTIVEC && CRC_T10DIF
-       select CRYPTO_HASH
-       help
-         CRC10T10DIF algorithm implemented using vector polynomial
-         multiply-sum (vpmsum) instructions, introduced in POWER8. Enable on
-         POWER8 and newer processors for improved performance.
-
 config CRYPTO_CRC64_ROCKSOFT
        tristate "Rocksoft Model CRC64 algorithm"
        depends on CRC64
        select CRYPTO_HASH
 
-config CRYPTO_VPMSUM_TESTER
-       tristate "Powerpc64 vpmsum hardware acceleration tester"
-       depends on CRYPTO_CRCT10DIF_VPMSUM && CRYPTO_CRC32C_VPMSUM
-       help
-         Stress test for CRC32c and CRC-T10DIF algorithms implemented with
-         POWER8 vpmsum instructions.
-         Unless you are testing these algorithms, you don't need this.
-
 config CRYPTO_GHASH
        tristate "GHASH hash function"
        select CRYPTO_GF128MUL
@@ -845,14 +817,6 @@ config CRYPTO_MD5
        help
          MD5 message digest algorithm (RFC1321).
 
-config CRYPTO_MD5_PPC
-       tristate "MD5 digest algorithm (PPC)"
-       depends on PPC
-       select CRYPTO_HASH
-       help
-         MD5 message digest algorithm (RFC1321) implemented
-         in PPC assembler.
-
 config CRYPTO_MD5_SPARC64
        tristate "MD5 digest algorithm (SPARC64)"
        depends on SPARC64
@@ -948,20 +912,6 @@ config CRYPTO_SHA1_SPARC64
          SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
          using sparc64 crypto instructions, when available.
 
-config CRYPTO_SHA1_PPC
-       tristate "SHA1 digest algorithm (powerpc)"
-       depends on PPC
-       help
-         This is the powerpc hardware accelerated implementation of the
-         SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
-
-config CRYPTO_SHA1_PPC_SPE
-       tristate "SHA1 digest algorithm (PPC SPE)"
-       depends on PPC && SPE
-       help
-         SHA-1 secure hash standard (DFIPS 180-4) implemented
-         using powerpc SPE SIMD instruction set.
-
 config CRYPTO_SHA1_S390
        tristate "SHA1 digest algorithm"
        depends on S390
@@ -985,15 +935,6 @@ config CRYPTO_SHA256
          This code also includes SHA-224, a 224 bit hash with 112 bits
          of security against collision attacks.
 
-config CRYPTO_SHA256_PPC_SPE
-       tristate "SHA224 and SHA256 digest algorithm (PPC SPE)"
-       depends on PPC && SPE
-       select CRYPTO_SHA256
-       select CRYPTO_HASH
-       help
-         SHA224 and SHA256 secure hash standard (DFIPS 180-2)
-         implemented using powerpc SPE SIMD instruction set.
-
 config CRYPTO_SHA256_SPARC64
        tristate "SHA224 and SHA256 digest algorithm (SPARC64)"
        depends on SPARC64
@@ -1235,20 +1176,6 @@ config CRYPTO_AES_SPARC64
          for some popular block cipher mode is supported too, including
          ECB and CBC.
 
-config CRYPTO_AES_PPC_SPE
-       tristate "AES cipher algorithms (PPC SPE)"
-       depends on PPC && SPE
-       select CRYPTO_SKCIPHER
-       help
-         AES cipher algorithms (FIPS-197). Additionally the acceleration
-         for popular block cipher modes ECB, CBC, CTR and XTS is supported.
-         This module should only be used for low power (router) devices
-         without hardware AES acceleration (e.g. caam crypto). It reduces the
-         size of the AES tables from 16KB to 8KB + 256 bytes and mitigates
-         timining attacks. Nevertheless it might be not as secure as other
-         architecture specific assembler implementations that work on 1KB
-         tables or 256 bytes S-boxes.
-
 config CRYPTO_AES_S390
        tristate "AES cipher algorithms"
        depends on S390
@@ -2076,6 +2003,9 @@ config CRYPTO_HASH_INFO
 if MIPS
 source "arch/mips/crypto/Kconfig"
 endif
+if PPC
+source "arch/powerpc/crypto/Kconfig"
+endif
 
 source "drivers/crypto/Kconfig"
 source "crypto/asymmetric_keys/Kconfig"