linux-kernel - [PATCH v2 1/6] Update Kconfig and Makefile.

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Date:   Sun,  4 Dec 2022 19:34:53 -0500
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, ltcgcw@...ux.vnet.ibm.com,
        dtsen@...ux.ibm.com
Subject: [PATCH v2 1/6] Update Kconfig and Makefile.

Defined CRYPTO_P10_AES_GCM in Kconfig to support AES/GCM
stitched implementation for Power10+ CPU.

Added a new module driver p10-aes-gcm-crypto.

Signed-off-by: Danny Tsen <dtsen@...ux.ibm.com>
---
 arch/powerpc/crypto/Kconfig  | 11 +++++++++++
 arch/powerpc/crypto/Makefile | 10 ++++++++++
 2 files changed, 21 insertions(+)

diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index c1b964447401..db7d99383993 100644
--- a/arch/powerpc/crypto/Kconfig
+++ b/arch/powerpc/crypto/Kconfig
@@ -94,4 +94,15 @@ config CRYPTO_AES_PPC_SPE
 	  architecture specific assembler implementations that work on 1KB
 	  tables or 256 bytes S-boxes.
 
+config CRYPTO_P10_AES_GCM
+	tristate "Stitched AES/GCM acceleration support on P10+ CPU (PPC)"
+	depends on PPC64
+	select CRYPTO_LIB_AES
+	select CRYPTO_ALGAPI
+	select CRYPTO_AEAD
+	default m
+	help
+	  Support for cryptographic acceleration instructions on Power10+ CPU.
+	    This module supports stitched acceleration for AES/GCM in hardware.
+
 endmenu
diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile
index 4808d97fede5..5b8252013abd 100644
--- a/arch/powerpc/crypto/Makefile
+++ b/arch/powerpc/crypto/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_CRYPTO_SHA256_PPC_SPE) += sha256-ppc-spe.o
 obj-$(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_P10_AES_GCM) += p10-aes-gcm-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
@@ -21,3 +22,12 @@ sha1-ppc-spe-y := sha1-spe-asm.o sha1-spe-glue.o
 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
+p10-aes-gcm-crypto-y := p10-aes-gcm-glue.o p10_aes_gcm.o ghashp8-ppc.o aesp8-ppc.o
+
+quiet_cmd_perl = PERL    $@
+      cmd_perl = $(PERL) $< $(if $(CONFIG_CPU_LITTLE_ENDIAN), linux-ppc64le, linux-ppc64) > $@
+
+targets += aesp8-ppc.S ghashp8-ppc.S
+
+$(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S: $(obj)/%.S: $(src)/%.pl FORCE
+	$(call if_changed,perl)
-- 
2.31.1