On Thu, 2015-02-05 at 15:21 -0200, Leonidas S. Barbosa wrote: > This patch enables VMX module in PPC64. > > Signed-off-by: Leonidas S. Barbosa <leosilva@xxxxxxxxxxxxxxxxxx> > --- > drivers/crypto/Kconfig | 12 ++++++++++++ > drivers/crypto/Makefile | 1 + > drivers/crypto/vmx/Kconfig | 9 +++++++++ > drivers/crypto/vmx/Makefile | 21 +++++++++++++++++++++ > 4 files changed, 43 insertions(+) > create mode 100644 drivers/crypto/vmx/Kconfig > create mode 100644 drivers/crypto/vmx/Makefile > > diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig > index 2fb0fdf..979cbff 100644 > --- a/drivers/crypto/Kconfig > +++ b/drivers/crypto/Kconfig > @@ -436,4 +436,16 @@ 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. > + > +if CRYPTO_DEV_VMX > + source "drivers/crypto/vmx/Kconfig" > +endif > + > endif # CRYPTO_HW > + Unneeded extra line. > diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile > index 3924f93..20a7127 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-$(CONFIG_CRYPTO_DEV_VMX) += vmx/ > diff --git a/drivers/crypto/vmx/Kconfig b/drivers/crypto/vmx/Kconfig > new file mode 100644 > index 0000000..6728864 > --- /dev/null > +++ b/drivers/crypto/vmx/Kconfig > @@ -0,0 +1,9 @@ > +config CRYPTO_DEV_VMX_ENCRYPT > + tristate "Encryption acceleration support on P8 CPU" > + depends on PPC64 The net effect of the "if CRYPTO_DEV_VMX" wrapper round the source-ing of this file is that CRYPTO_DEV_VMX_ENCRYPT depends on CRYPTO_DEV_VMX. That makes depending on PPC64 superfluous here. You might as well make this symbol depend on CRYPTO_DEV_VMX and drop the "if CRYPTO_DEV_VMX" wrapper. > + default y > + help > + Support for VMX cryptographic acceleration instructions on Power8 CPU. > + This module supports acceleration for AES and GHASH in hardware. If you > + choose 'M' here, this module will be called vmx-crypto. > + Trailing line of whitespace only. > diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile > new file mode 100644 > index 0000000..8898ce6 > --- /dev/null > +++ b/drivers/crypto/vmx/Makefile > @@ -0,0 +1,21 @@ > +obj-$(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 ($(CONFIG_PPC64),y) Can this test ever fail? > +ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) > +TARGET := linux-ppc64le > +else > +TARGET := linux-pcc64 > +endif > +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 Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
