Re: 4.17-ad1: -march=native support or Kernel Ricers wanted
On Fri, Jun 08, 2018 at 02:34:36PM +0800, kbuild test robot wrote: > url: > https://github.com/0day-ci/linux/commits/Alexey-Dobriyan/4-17-ad1-march-native-support-or-Kernel-Ricers-wanted/20180605-090623 >execvp: scripts/march-native.sh: Permission denied You patch application scripts ignore +x
Re: 4.17-ad1: -march=native support or Kernel Ricers wanted
On Fri, Jun 08, 2018 at 02:34:36PM +0800, kbuild test robot wrote: > url: > https://github.com/0day-ci/linux/commits/Alexey-Dobriyan/4-17-ad1-march-native-support-or-Kernel-Ricers-wanted/20180605-090623 >execvp: scripts/march-native.sh: Permission denied You patch application scripts ignore +x
Re: 4.17-ad1: -march=native support or Kernel Ricers wanted
Hi Alexey, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.17] [cannot apply to tip/x86/core next-20180607] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Alexey-Dobriyan/4-17-ad1-march-native-support-or-Kernel-Ricers-wanted/20180605-090623 config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=m68k All errors (new ones prefixed by >>): WARNING: unmet direct dependencies detected for PREEMPT_COUNT Depends on COLDFIRE Selected by - DEBUG_ATOMIC_SLEEP && DEBUG_KERNEL execvp: scripts/march-native.sh: Permission denied Makefile arch include scripts source Error 127 Makefile arch include scripts source Error 2 >> Makefile arch include scripts source No rule to make target >> 'include/config/auto.conf', needed by 'include/config/kernel.release'. Target 'prepare' not remade because of errors. make: Makefile arch include scripts source Error 2 --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation .config.gz Description: application/gzip
Re: 4.17-ad1: -march=native support or Kernel Ricers wanted
Hi Alexey, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.17] [cannot apply to tip/x86/core next-20180607] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Alexey-Dobriyan/4-17-ad1-march-native-support-or-Kernel-Ricers-wanted/20180605-090623 config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=m68k All errors (new ones prefixed by >>): WARNING: unmet direct dependencies detected for PREEMPT_COUNT Depends on COLDFIRE Selected by - DEBUG_ATOMIC_SLEEP && DEBUG_KERNEL execvp: scripts/march-native.sh: Permission denied Makefile arch include scripts source Error 127 Makefile arch include scripts source Error 2 >> Makefile arch include scripts source No rule to make target >> 'include/config/auto.conf', needed by 'include/config/kernel.release'. Target 'prepare' not remade because of errors. make: Makefile arch include scripts source Error 2 --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation .config.gz Description: application/gzip
Re: 4.17-ad1: -march=native support or Kernel Ricers wanted
Hi Alexey, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.17] [cannot apply to tip/x86/core next-20180607] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Alexey-Dobriyan/4-17-ad1-march-native-support-or-Kernel-Ricers-wanted/20180605-090623 config: x86_64-kexec (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): make[3]: execvp: scripts/march-native.sh: Permission denied make[3]: *** [syncconfig] Error 127 make[2]: *** [syncconfig] Error 2 >> make[1]: *** No rule to make target 'include/config/auto.conf', needed by >> 'include/config/kernel.release'. make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2 --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation .config.gz Description: application/gzip
Re: 4.17-ad1: -march=native support or Kernel Ricers wanted
Hi Alexey, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.17] [cannot apply to tip/x86/core next-20180607] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Alexey-Dobriyan/4-17-ad1-march-native-support-or-Kernel-Ricers-wanted/20180605-090623 config: x86_64-kexec (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): make[3]: execvp: scripts/march-native.sh: Permission denied make[3]: *** [syncconfig] Error 127 make[2]: *** [syncconfig] Error 2 >> make[1]: *** No rule to make target 'include/config/auto.conf', needed by >> 'include/config/kernel.release'. make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2 --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation .config.gz Description: application/gzip
4.17-ad1: -march=native support or Kernel Ricers wanted
Original announcement: https://marc.info/?l=linux-kernel=151268659328024=4 TLDR: this patchset adds kernel compilation with "-march=native" for x86_64 which was available for a long time in userspace. Run "make oldconfig", select "-march=native" support, recompile, reboot on the same machine(!). Changes since v0: * REP STOSB/MOVSB harder for both aligned and unaligned cases (still not enough) * disable MMX/SSE/AVX/AVX-512 (needs double checking re F16C etc) * use __builtin_popcount() (kudos to hpa) * fail hard in verify_cpu() * REP STOSB clear_user() support * inject "-march=native" detection line into /proc/config.gz Signed-off-by: Alexey Dobriyan --- Makefile | 17 +++- arch/x86/Kconfig.cpu |8 + arch/x86/Makefile | 27 +- arch/x86/boot/compressed/head_64.S|4 arch/x86/crypto/des3_ede-asm_64.S | 28 ++ arch/x86/crypto/sha1_ssse3_asm.S |7 + arch/x86/include/asm/arch_hweight.h | 28 ++ arch/x86/include/asm/page_64.h| 26 ++ arch/x86/kernel/relocate_kernel_64.S | 15 +++ arch/x86/kernel/verify_cpu.S | 27 ++ arch/x86/lib/Makefile | 12 ++ arch/x86/lib/memcpy_64.S | 13 +++ arch/x86/lib/memset_64.S | 15 +++ arch/x86/lib/usercopy_64.c| 15 +++ arch/x86/net/bpf_jit.S| 12 ++ arch/x86/xen/xen-pvh.S|4 drivers/net/wireless/mediatek/mt76/mac80211.c |2 include/linux/bitops.h|2 lib/Makefile |2 scripts/kconfig/.gitignore|1 scripts/kconfig/Makefile | 19 +++- scripts/kconfig/cpuid.c | 100 +++ scripts/march-native.sh | 109 ++ 23 files changed, 473 insertions(+), 20 deletions(-) --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 17 SUBLEVEL = 0 -EXTRAVERSION = +EXTRAVERSION = -ad1 NAME = Merciless Moray # *DOCUMENTATION* @@ -362,9 +362,8 @@ HOST_LFS_LIBS := $(shell getconf LFS_LIBS) HOSTCC = gcc HOSTCXX = g++ -HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \ - -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) -HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) +HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -march=native -O2 -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) +HOSTCXXFLAGS := -march=native -O2 $(HOST_LFS_CFLAGS) HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) HOST_LOADLIBES := $(HOST_LFS_LIBS) @@ -584,6 +583,16 @@ ifeq ($(dot-config),1) # Read in config -include include/config/auto.conf +ifdef CONFIG_MARCH_NATIVE +KBUILD_CFLAGS += -march=native +endif +ifdef CONFIG_MARCH_NATIVE_REP_MOVSB +KBUILD_CFLAGS += -mmemcpy-strategy=rep_byte:-1:align,rep_byte:-1:noalign +endif +ifdef CONFIG_MARCH_NATIVE_REP_STOSB +KBUILD_CFLAGS += -mmemset-strategy=rep_byte:-1:align,rep_byte:-1:noalign +endif + ifeq ($(KBUILD_EXTMOD),) # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -287,6 +287,12 @@ config GENERIC_CPU Generic x86-64 CPU. Run equally well on all x86-64 CPUs. +config MARCH_NATIVE + bool "-march=native" + depends on X86_64 + ---help--- + -march=native support. + endchoice config X86_GENERIC @@ -307,6 +313,7 @@ config X86_INTERNODE_CACHE_SHIFT int default "12" if X86_VSMP default X86_L1_CACHE_SHIFT + depends on !MARCH_NATIVE config X86_L1_CACHE_SHIFT int @@ -314,6 +321,7 @@ config X86_L1_CACHE_SHIFT default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU default "4" if MELAN || M486 || MGEODEGX1 default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX + depends on !MARCH_NATIVE config X86_F00F_BUG def_bool y --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -12,6 +12,28 @@ else KBUILD_DEFCONFIG := $(ARCH)_defconfig endif +CFLAGS_NO_FP := +CFLAGS_NO_FP += $(call cc-option,-mno-mmx,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse2,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse3,) +CFLAGS_NO_FP += $(call cc-option,-mno-ssse3,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4a,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4.1,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4.2,) +CFLAGS_NO_FP += $(call cc-option,-mno-avx,) +CFLAGS_NO_FP += $(call
4.17-ad1: -march=native support or Kernel Ricers wanted
Original announcement: https://marc.info/?l=linux-kernel=151268659328024=4 TLDR: this patchset adds kernel compilation with "-march=native" for x86_64 which was available for a long time in userspace. Run "make oldconfig", select "-march=native" support, recompile, reboot on the same machine(!). Changes since v0: * REP STOSB/MOVSB harder for both aligned and unaligned cases (still not enough) * disable MMX/SSE/AVX/AVX-512 (needs double checking re F16C etc) * use __builtin_popcount() (kudos to hpa) * fail hard in verify_cpu() * REP STOSB clear_user() support * inject "-march=native" detection line into /proc/config.gz Signed-off-by: Alexey Dobriyan --- Makefile | 17 +++- arch/x86/Kconfig.cpu |8 + arch/x86/Makefile | 27 +- arch/x86/boot/compressed/head_64.S|4 arch/x86/crypto/des3_ede-asm_64.S | 28 ++ arch/x86/crypto/sha1_ssse3_asm.S |7 + arch/x86/include/asm/arch_hweight.h | 28 ++ arch/x86/include/asm/page_64.h| 26 ++ arch/x86/kernel/relocate_kernel_64.S | 15 +++ arch/x86/kernel/verify_cpu.S | 27 ++ arch/x86/lib/Makefile | 12 ++ arch/x86/lib/memcpy_64.S | 13 +++ arch/x86/lib/memset_64.S | 15 +++ arch/x86/lib/usercopy_64.c| 15 +++ arch/x86/net/bpf_jit.S| 12 ++ arch/x86/xen/xen-pvh.S|4 drivers/net/wireless/mediatek/mt76/mac80211.c |2 include/linux/bitops.h|2 lib/Makefile |2 scripts/kconfig/.gitignore|1 scripts/kconfig/Makefile | 19 +++- scripts/kconfig/cpuid.c | 100 +++ scripts/march-native.sh | 109 ++ 23 files changed, 473 insertions(+), 20 deletions(-) --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 17 SUBLEVEL = 0 -EXTRAVERSION = +EXTRAVERSION = -ad1 NAME = Merciless Moray # *DOCUMENTATION* @@ -362,9 +362,8 @@ HOST_LFS_LIBS := $(shell getconf LFS_LIBS) HOSTCC = gcc HOSTCXX = g++ -HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \ - -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) -HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) +HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -march=native -O2 -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) +HOSTCXXFLAGS := -march=native -O2 $(HOST_LFS_CFLAGS) HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) HOST_LOADLIBES := $(HOST_LFS_LIBS) @@ -584,6 +583,16 @@ ifeq ($(dot-config),1) # Read in config -include include/config/auto.conf +ifdef CONFIG_MARCH_NATIVE +KBUILD_CFLAGS += -march=native +endif +ifdef CONFIG_MARCH_NATIVE_REP_MOVSB +KBUILD_CFLAGS += -mmemcpy-strategy=rep_byte:-1:align,rep_byte:-1:noalign +endif +ifdef CONFIG_MARCH_NATIVE_REP_STOSB +KBUILD_CFLAGS += -mmemset-strategy=rep_byte:-1:align,rep_byte:-1:noalign +endif + ifeq ($(KBUILD_EXTMOD),) # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -287,6 +287,12 @@ config GENERIC_CPU Generic x86-64 CPU. Run equally well on all x86-64 CPUs. +config MARCH_NATIVE + bool "-march=native" + depends on X86_64 + ---help--- + -march=native support. + endchoice config X86_GENERIC @@ -307,6 +313,7 @@ config X86_INTERNODE_CACHE_SHIFT int default "12" if X86_VSMP default X86_L1_CACHE_SHIFT + depends on !MARCH_NATIVE config X86_L1_CACHE_SHIFT int @@ -314,6 +321,7 @@ config X86_L1_CACHE_SHIFT default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU default "4" if MELAN || M486 || MGEODEGX1 default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX + depends on !MARCH_NATIVE config X86_F00F_BUG def_bool y --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -12,6 +12,28 @@ else KBUILD_DEFCONFIG := $(ARCH)_defconfig endif +CFLAGS_NO_FP := +CFLAGS_NO_FP += $(call cc-option,-mno-mmx,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse2,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse3,) +CFLAGS_NO_FP += $(call cc-option,-mno-ssse3,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4a,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4.1,) +CFLAGS_NO_FP += $(call cc-option,-mno-sse4.2,) +CFLAGS_NO_FP += $(call cc-option,-mno-avx,) +CFLAGS_NO_FP += $(call
