crypto: p10-aes-gcm - 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@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index c1b964447401634e9c55ba7f34695a0f63750789..db7d993839933d760247d3591c32cc4a80ca7ec8 100644 (file)
--- 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 4808d97fede5323a7a3a7a302334e6e4107d69d9..5b8252013abdf8d361b77ad7f0062067db21ba62 100644 (file)
--- 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)