Enabling VMX module for PPC64
PATCH 7/7 Enabling VMX module for PPC64
This patch enables VMX module in PPC64.
Signed-off-by Leonidas S. Barbosa <[email protected]>
--- 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
drivers/crypto/Kconfig +12 -0
@@ -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 +
drivers/crypto/Makefile +1 -0
@@ -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-$(CONFIG_CRYPTO_DEV_VMX) += vmx/
drivers/crypto/vmx/Kconfig new file +9 -0
@@ -0,0 +1,9 @@ +config CRYPTO_DEV_VMX_ENCRYPT + tristate "Encryption acceleration support on P8 CPU" + depends on PPC64 + default y + help + Support for VMX cryptographic acceleration instructions on Power8 CPU. + This module supports acceleration for AES and GHASH in hardware. If you + choose 'M' here, this module will be called vmx-crypto. +
drivers/crypto/vmx/Makefile new file +21 -0
@@ -0,0 +1,21 @@ +obj-$(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 ($(CONFIG_PPC64),y) +ifeq ($(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 $(obj)/ghashp8-ppc.S
Signature · 1 line
2.1.0
Quoted 23 lines · Leonidas S. Barbosa
This patch enables VMX module in PPC64.
Signed-off-by Leonidas S. Barbosa <[email protected]>--- drivers/crypto/Kconfig | 12 ++++++++++++ drivers/crypto/Makefile | 1 + drivers/crypto/vmx/Kconfig | 9 +++++++++ drivers/crypto/vmx/Makefile | 21 +++++++++++++++++++++ 4 files changed, 43 insertions(+) create mode 100644 drivers/crypto/vmx/Kconfig create mode 100644 drivers/crypto/vmx/Makefiledrivers/crypto/Kconfig +3
-0@@ -436,4 +436,16 @@ config CRYPTO_DEV_QCE hardware. To compile this driver as a module, choose M here. The module will be called qcrypto. +config CRYPTO_DEV_VMX + bool "Support for VMX cryptographic acceleration instructions" + depends on PPC64
drivers/crypto/Kconfig config CRYPTO_DEV_QCE · line 451
Quoted 10 lines
drivers/crypto/Kconfig +9
-0+ default n + help + Support for VMX cryptographic acceleration instructions. + +if CRYPTO_DEV_VMX + source "drivers/crypto/vmx/Kconfig" +endif + endif # CRYPTO_HW +
Unneeded extra line.
Quoted 15 lines
drivers/crypto/Makefile +1
-0@@ -25,3 +25,4 @@ obj-$(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/drivers/crypto/vmx/Kconfig new file +0
-0
drivers/crypto/vmx/Kconfig line 3
Quoted 3 lines
drivers/crypto/vmx/Kconfig new file +3
-0@@ -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.
drivers/crypto/vmx/Kconfig line 9
Quoted 6 lines
drivers/crypto/vmx/Kconfig new file +6
-0+ 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.
drivers/crypto/vmx/Makefile line 4
Quoted 10 lines
drivers/crypto/vmx/Makefile new file +4
-0@@ -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?
Quoted 7 lines
drivers/crypto/vmx/Makefile new file +7
-0+ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) +TARGET := linux-ppc64le +else +TARGET := linux-pcc64 +endif +endif +
drivers/crypto/vmx/Makefile line 21
Quoted 10 lines
drivers/crypto/vmx/Makefile new file +10
-0+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 $(obj)/ghashp8-ppc.S
Paul Bolle
Thanks for the advices Paul.
Resending patch set as V2.
Quoted 5 lines
drivers/crypto/vmx/Makefile line 4
Quoted 3 lines
drivers/crypto/vmx/Makefile new file +3
-0+vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o ghash.o + +ifeq ($(CONFIG_PPC64),y)Can this test ever fail?
In fact we don't need this first IF, since it already depends on PPC64.
---
Leonidas.