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| author | Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> | 2015-02-06 14:59:48 -0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-02-28 23:13:46 +1300 |
| commit | d2e3ae6f3abad839214f7b05c34075a1a7c82470 (patch) | |
| tree | 69addf6380a132aaa2bcbd06e808da11307b2ee5 | |
| parent | 5c380d623ed30b71a2441fb4f2e053a4e1a50794 (diff) | |
| download | lwn-d2e3ae6f3abad839214f7b05c34075a1a7c82470.tar.gz lwn-d2e3ae6f3abad839214f7b05c34075a1a7c82470.zip | |
crypto: vmx - Enabling VMX module for PPC64
This patch enables VMX module in PPC64.
Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/crypto/Makefile | 1 | ||||
| -rw-r--r-- | drivers/crypto/vmx/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/crypto/vmx/Makefile | 19 |
4 files changed, 37 insertions, 0 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 7e94413da6e3..9dd34bc3f541 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -436,4 +436,13 @@ config CRYPTO_DEV_QCE hardware. To compile this driver as a module, choose M here. The module will be called qcrypto. +config CRYPTO_DEV_VMX + bool "Support for VMX cryptographic acceleration instructions" + depends on PPC64 + default n + help + Support for VMX cryptographic acceleration instructions. + +source "drivers/crypto/vmx/Kconfig" + endif # CRYPTO_HW diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile index 3924f93d5774..20a71273369a 100644 --- a/drivers/crypto/Makefile +++ b/drivers/crypto/Makefile @@ -25,3 +25,4 @@ obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o obj-$(CONFIG_CRYPTO_DEV_UX500) += ux500/ obj-$(CONFIG_CRYPTO_DEV_QAT) += qat/ obj-$(CONFIG_CRYPTO_DEV_QCE) += qce/ +obj-$(CONFIG_CRYPTO_DEV_VMX) += vmx/ diff --git a/drivers/crypto/vmx/Kconfig b/drivers/crypto/vmx/Kconfig new file mode 100644 index 000000000000..771babf16aa0 --- /dev/null +++ b/drivers/crypto/vmx/Kconfig @@ -0,0 +1,8 @@ +config CRYPTO_DEV_VMX_ENCRYPT + tristate "Encryption acceleration support on P8 CPU" + depends on PPC64 && CRYPTO_DEV_VMX + default y + help + Support for VMX cryptographic acceleration instructions on Power8 CPU. + This module supports acceleration for AES and GHASH in hardware. If you + choose 'M' here, this module will be called vmx-crypto. diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile new file mode 100644 index 000000000000..c699c6e6c82e --- /dev/null +++ b/drivers/crypto/vmx/Makefile @@ -0,0 +1,19 @@ +obj-$(CONFIG_CRYPTO_DEV_VMX_ENCRYPT) += vmx-crypto.o +vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o ghash.o + +ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) +TARGET := linux-ppc64le +else +TARGET := linux-pcc64 +endif + +quiet_cmd_perl = PERL $@ + cmd_perl = $(PERL) $(<) $(TARGET) > $(@) + +$(src)/aesp8-ppc.S: $(src)/aesp8-ppc.pl + $(call cmd,perl) + +$(src)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl + $(call cmd,perl) + +.PRECIOUS: $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S |