linux-kernel - [PATCH v2 5/5] Update Kconfig and Makefile.

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Message-Id: <20230426191147.60610-6-dtsen@linux.ibm.com>
Date:   Wed, 26 Apr 2023 15:11:47 -0400
From:   Danny Tsen <dtsen@...ux.ibm.com>
To:     linux-crypto@...r.kernel.org
Cc:     herbert@...dor.apana.org.au, leitao@...ian.org,
        nayna@...ux.ibm.com, appro@...ptogams.org,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        mpe@...erman.id.au, ltcgcw@...ux.vnet.ibm.com, dtsen@...ibm.com,
        Danny Tsen <dtsen@...ux.ibm.com>
Subject: [PATCH v2 5/5] Update Kconfig and Makefile.

Defined CRYPTO_CHACHA20_P10 and CRYPTO POLY1305_P10 in Kconfig to
support optimized implementation for Power10 and later CPU.

Added new module driver chacha-p10-crypto and poly1305-p10-crypto.

Signed-off-by: Danny Tsen <dtsen@...ux.ibm.com>
---
 arch/powerpc/crypto/Kconfig  | 26 ++++++++++++++++++++++++++
 arch/powerpc/crypto/Makefile |  4 ++++
 2 files changed, 30 insertions(+)

diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index 7113f9355165..f74d9dd6574b 100644
--- a/arch/powerpc/crypto/Kconfig
+++ b/arch/powerpc/crypto/Kconfig
@@ -111,4 +111,30 @@ config CRYPTO_AES_GCM_P10
 	  Support for cryptographic acceleration instructions on Power10 or
 	  later CPU. This module supports stitched acceleration for AES/GCM.
 
+config CRYPTO_CHACHA20_P10
+	tristate "Ciphers: ChaCha20, XChacha20, XChacha12 (P10 or later)"
+	depends on PPC64 && CPU_LITTLE_ENDIAN
+	select CRYPTO_SKCIPHER
+	select CRYPTO_LIB_CHACHA_GENERIC
+	select CRYPTO_ARCH_HAVE_LIB_CHACHA
+	help
+	  Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
+	  stream cipher algorithms
+
+	  Architecture: PowerPC64
+	  - Power10 or later
+	  - Little-endian
+
+config CRYPTO_POLY1305_P10
+	tristate "Hash functions: Poly1305 (P10 or later)"
+	depends on PPC64 && CPU_LITTLE_ENDIAN
+	select CRYPTO_HASH
+	select CRYPTO_LIB_POLY1305_GENERIC
+	help
+	  Poly1305 authenticator algorithm (RFC7539)
+
+	  Architecture: PowerPC64
+	  - Power10 or later
+	  - Little-endian
+
 endmenu
diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile
index 05c7486f42c5..cd5282eff451 100644
--- a/arch/powerpc/crypto/Makefile
+++ b/arch/powerpc/crypto/Makefile
@@ -14,6 +14,8 @@ obj-$(CONFIG_CRYPTO_CRC32C_VPMSUM) += crc32c-vpmsum.o
 obj-$(CONFIG_CRYPTO_CRCT10DIF_VPMSUM) += crct10dif-vpmsum.o
 obj-$(CONFIG_CRYPTO_VPMSUM_TESTER) += crc-vpmsum_test.o
 obj-$(CONFIG_CRYPTO_AES_GCM_P10) += aes-gcm-p10-crypto.o
+obj-$(CONFIG_CRYPTO_CHACHA20_P10) += chacha-p10-crypto.o
+obj-$(CONFIG_CRYPTO_POLY1305_P10) += poly1305-p10-crypto.o
 
 aes-ppc-spe-y := aes-spe-core.o aes-spe-keys.o aes-tab-4k.o aes-spe-modes.o aes-spe-glue.o
 md5-ppc-y := md5-asm.o md5-glue.o
@@ -23,6 +25,8 @@ sha256-ppc-spe-y := sha256-spe-asm.o sha256-spe-glue.o
 crc32c-vpmsum-y := crc32c-vpmsum_asm.o crc32c-vpmsum_glue.o
 crct10dif-vpmsum-y := crct10dif-vpmsum_asm.o crct10dif-vpmsum_glue.o
 aes-gcm-p10-crypto-y := aes-gcm-p10-glue.o aes-gcm-p10.o ghashp8-ppc.o aesp8-ppc.o
+chacha-p10-crypto-y := chacha-p10-glue.o chacha-p10le-8x.o
+poly1305-p10-crypto-y := poly1305-p10-glue.o poly1305-p10le_64.o
 
 quiet_cmd_perl = PERL    $@
       cmd_perl = $(PERL) $< $(if $(CONFIG_CPU_LITTLE_ENDIAN), linux-ppc64le, linux-ppc64) > $@
-- 
2.31.1