commit:     ee51be5f1cb825aa5845a9badc02fdc43e501c96
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Fri Feb 22 15:18:53 2019 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Fri Feb 22 15:18:53 2019 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=ee51be5f

proj/linux-patches: Add fixed cpu opt. patch for gcc >= v8

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README                                  |   4 +
 5011_enable-cpu-optimizations-for-gcc8.patch | 569 +++++++++++++++++++++++++++
 2 files changed, 573 insertions(+)

diff --git a/0000_README b/0000_README
index b93c0f3..068574e 100644
--- a/0000_README
+++ b/0000_README
@@ -114,3 +114,7 @@ Desc:   Add Gentoo Linux support config settings and 
defaults.
 Patch:  5010_enable-additional-cpu-optimizations-for-gcc-4.9.patch
 From:   https://github.com/graysky2/kernel_gcc_patch/
 Desc:   Kernel patch enables gcc >= v4.13 optimizations for additional CPUs.
+
+Patch:  5011_enable-cpu-optimizations-for-gcc8.patch
+From:   https://github.com/graysky2/kernel_gcc_patch/
+Desc:   Kernel patch for >= gccv8 enables kernel >= v4.13 optimizations for 
additional CPUs.

diff --git a/5011_enable-cpu-optimizations-for-gcc8.patch 
b/5011_enable-cpu-optimizations-for-gcc8.patch
new file mode 100644
index 0000000..bfd2065
--- /dev/null
+++ b/5011_enable-cpu-optimizations-for-gcc8.patch
@@ -0,0 +1,569 @@
+WARNING
+This patch works with gcc versions 8.1+ and with kernel version 4.13+ and 
should
+NOT be applied when compiling on older versions of gcc due to key name changes
+of the march flags introduced with the version 4.9 release of gcc.[1]
+
+Use the older version of this patch hosted on the same github for older
+versions of gcc.
+
+FEATURES
+This patch adds additional CPU options to the Linux kernel accessible under:
+ Processor type and features  --->
+  Processor family --->
+
+The expanded microarchitectures include:
+* AMD Improved K8-family
+* AMD K10-family
+* AMD Family 10h (Barcelona)
+* AMD Family 14h (Bobcat)
+* AMD Family 16h (Jaguar)
+* AMD Family 15h (Bulldozer)
+* AMD Family 15h (Piledriver)
+* AMD Family 15h (Steamroller)
+* AMD Family 15h (Excavator)
+* AMD Family 17h (Zen)
+* Intel Silvermont low-power processors
+* Intel 1st Gen Core i3/i5/i7 (Nehalem)
+* Intel 1.5 Gen Core i3/i5/i7 (Westmere)
+* Intel 2nd Gen Core i3/i5/i7 (Sandybridge)
+* Intel 3rd Gen Core i3/i5/i7 (Ivybridge)
+* Intel 4th Gen Core i3/i5/i7 (Haswell)
+* Intel 5th Gen Core i3/i5/i7 (Broadwell)
+* Intel 6th Gen Core i3/i5/i7 (Skylake)
+* Intel 6th Gen Core i7/i9 (Skylake X)
+* Intel 8th Gen Core i3/i5/i7 (Cannon Lake)
+* Intel 8th Gen Core i7/i9 (Ice Lake)
+
+It also offers to compile passing the 'native' option which, "selects the CPU
+to generate code for at compilation time by determining the processor type of
+the compiling machine. Using -march=native enables all instruction subsets
+supported by the local machine and will produce code optimized for the local
+machine under the constraints of the selected instruction set."[3]
+
+MINOR NOTES
+This patch also changes 'atom' to 'bonnell' in accordance with the gcc v4.9
+changes. Note that upstream is using the deprecated 'match=atom' flags when I
+believe it should use the newer 'march=bonnell' flag for atom processors.[2]
+
+It is not recommended to compile on Atom-CPUs with the 'native' option.[4] The
+recommendation is to use the 'atom' option instead.
+
+BENEFITS
+Small but real speed increases are measurable using a make endpoint comparing
+a generic kernel to one built with one of the respective microarchs.
+
+See the following experimental evidence supporting this statement:
+https://github.com/graysky2/kernel_gcc_patch
+
+REQUIREMENTS
+linux version >=4.20
+gcc version >=8.1
+
+ACKNOWLEDGMENTS
+This patch builds on the seminal work by Jeroen.[5]
+
+REFERENCES
+1. https://gcc.gnu.org/gcc-4.9/changes.html
+2. https://bugzilla.kernel.org/show_bug.cgi?id=77461
+3. https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
+4. https://github.com/graysky2/kernel_gcc_patch/issues/15
+5. http://www.linuxforge.net/docs/linux/linux-gcc.php
+
+--- a/arch/x86/Makefile_32.cpu 2019-02-22 09:22:03.426937735 -0500
++++ b/arch/x86/Makefile_32.cpu 2019-02-22 09:37:58.680968580 -0500
+@@ -23,7 +23,18 @@ cflags-$(CONFIG_MK6)                += -march=k6
+ # Please note, that patches that add -march=athlon-xp and friends are 
pointless.
+ # They make zero difference whatsosever to performance at this time.
+ cflags-$(CONFIG_MK7)          += -march=athlon
++cflags-$(CONFIG_MNATIVE) += $(call cc-option,-march=native)
+ cflags-$(CONFIG_MK8)          += $(call cc-option,-march=k8,-march=athlon)
++cflags-$(CONFIG_MK8SSE3)              += $(call 
cc-option,-march=k8-sse3,-march=athlon)
++cflags-$(CONFIG_MK10) += $(call cc-option,-march=amdfam10,-march=athlon)
++cflags-$(CONFIG_MBARCELONA)   += $(call 
cc-option,-march=barcelona,-march=athlon)
++cflags-$(CONFIG_MBOBCAT)      += $(call cc-option,-march=btver1,-march=athlon)
++cflags-$(CONFIG_MJAGUAR)      += $(call cc-option,-march=btver2,-march=athlon)
++cflags-$(CONFIG_MBULLDOZER)   += $(call cc-option,-march=bdver1,-march=athlon)
++cflags-$(CONFIG_MPILEDRIVER)  += $(call cc-option,-march=bdver2,-march=athlon)
++cflags-$(CONFIG_MSTEAMROLLER) += $(call cc-option,-march=bdver3,-march=athlon)
++cflags-$(CONFIG_MEXCAVATOR)   += $(call cc-option,-march=bdver4,-march=athlon)
++cflags-$(CONFIG_MZEN) += $(call cc-option,-march=znver1,-march=athlon)
+ cflags-$(CONFIG_MCRUSOE)      += -march=i686 -falign-functions=0 
-falign-jumps=0 -falign-loops=0
+ cflags-$(CONFIG_MEFFICEON)    += -march=i686 $(call tune,pentium3) 
-falign-functions=0 -falign-jumps=0 -falign-loops=0
+ cflags-$(CONFIG_MWINCHIPC6)   += $(call 
cc-option,-march=winchip-c6,-march=i586)
+@@ -32,9 +43,20 @@ cflags-$(CONFIG_MCYRIXIII)  += $(call cc-
+ cflags-$(CONFIG_MVIAC3_2)     += $(call cc-option,-march=c3-2,-march=i686)
+ cflags-$(CONFIG_MVIAC7)               += -march=i686
+ cflags-$(CONFIG_MCORE2)               += -march=i686 $(call tune,core2)
+-cflags-$(CONFIG_MATOM)                += $(call cc-option,-march=atom,$(call 
cc-option,-march=core2,-march=i686)) \
+-      $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
+-
++cflags-$(CONFIG_MNEHALEM)     += -march=i686 $(call tune,nehalem)
++cflags-$(CONFIG_MWESTMERE)    += -march=i686 $(call tune,westmere)
++cflags-$(CONFIG_MSILVERMONT)  += -march=i686 $(call tune,silvermont)
++cflags-$(CONFIG_MSANDYBRIDGE) += -march=i686 $(call tune,sandybridge)
++cflags-$(CONFIG_MIVYBRIDGE)   += -march=i686 $(call tune,ivybridge)
++cflags-$(CONFIG_MHASWELL)     += -march=i686 $(call tune,haswell)
++cflags-$(CONFIG_MBROADWELL)   += -march=i686 $(call tune,broadwell)
++cflags-$(CONFIG_MSKYLAKE)     += -march=i686 $(call tune,skylake)
++cflags-$(CONFIG_MSKYLAKEX)    += -march=i686 $(call tune,skylake-avx512)
++cflags-$(CONFIG_MCANNONLAKE)  += -march=i686 $(call tune,cannonlake)
++cflags-$(CONFIG_MICELAKE)     += -march=i686 $(call tune,icelake)
++cflags-$(CONFIG_MATOM)                += $(call 
cc-option,-march=bonnell,$(call cc-option,-march=core2,-march=i686)) \
++      $(call cc-option,-mtune=bonnell,$(call cc-option,-mtune=generic))
++ 
+ # AMD Elan support
+ cflags-$(CONFIG_MELAN)                += -march=i486
+ 
+--- a/arch/x86/Kconfig.cpu     2019-02-22 09:22:11.576958595 -0500
++++ b/arch/x86/Kconfig.cpu     2019-02-22 09:34:16.490003911 -0500
+@@ -116,6 +116,7 @@ config MPENTIUMM
+ config MPENTIUM4
+       bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon"
+       depends on X86_32
++      select X86_P6_NOP
+       ---help---
+         Select this for Intel Pentium 4 chips.  This includes the
+         Pentium 4, Pentium D, P4-based Celeron and Xeon, and
+@@ -150,7 +151,7 @@ config MPENTIUM4
+ 
+ 
+ config MK6
+-      bool "K6/K6-II/K6-III"
++      bool "AMD K6/K6-II/K6-III"
+       depends on X86_32
+       ---help---
+         Select this for an AMD K6-family processor.  Enables use of
+@@ -158,7 +159,7 @@ config MK6
+         flags to GCC.
+ 
+ config MK7
+-      bool "Athlon/Duron/K7"
++      bool "AMD Athlon/Duron/K7"
+       depends on X86_32
+       ---help---
+         Select this for an AMD Athlon K7-family processor.  Enables use of
+@@ -166,11 +167,81 @@ config MK7
+         flags to GCC.
+ 
+ config MK8
+-      bool "Opteron/Athlon64/Hammer/K8"
++      bool "AMD Opteron/Athlon64/Hammer/K8"
+       ---help---
+         Select this for an AMD Opteron or Athlon64 Hammer-family processor.
+         Enables use of some extended instructions, and passes appropriate
+         optimization flags to GCC.
++config MK8SSE3
++      bool "AMD Opteron/Athlon64/Hammer/K8 with SSE3"
++      ---help---
++        Select this for improved AMD Opteron or Athlon64 Hammer-family 
processors.
++        Enables use of some extended instructions, and passes appropriate
++        optimization flags to GCC.
++
++config MK10
++      bool "AMD 61xx/7x50/PhenomX3/X4/II/K10"
++      ---help---
++        Select this for an AMD 61xx Eight-Core Magny-Cours, Athlon X2 7x50,
++              Phenom X3/X4/II, Athlon II X2/X3/X4, or Turion II-family 
processor.
++        Enables use of some extended instructions, and passes appropriate
++        optimization flags to GCC.
++
++config MBARCELONA
++      bool "AMD Barcelona"
++      ---help---
++        Select this for AMD Family 10h Barcelona processors.
++
++        Enables -march=barcelona
++
++config MBOBCAT
++      bool "AMD Bobcat"
++      ---help---
++        Select this for AMD Family 14h Bobcat processors.
++
++        Enables -march=btver1
++
++config MJAGUAR
++      bool "AMD Jaguar"
++      ---help---
++        Select this for AMD Family 16h Jaguar processors.
++
++        Enables -march=btver2
++
++config MBULLDOZER
++      bool "AMD Bulldozer"
++      ---help---
++        Select this for AMD Family 15h Bulldozer processors.
++
++        Enables -march=bdver1
++
++config MPILEDRIVER
++      bool "AMD Piledriver"
++      ---help---
++        Select this for AMD Family 15h Piledriver processors.
++
++        Enables -march=bdver2
++
++config MSTEAMROLLER
++      bool "AMD Steamroller"
++      ---help---
++        Select this for AMD Family 15h Steamroller processors.
++
++        Enables -march=bdver3
++
++config MEXCAVATOR
++      bool "AMD Excavator"
++      ---help---
++        Select this for AMD Family 15h Excavator processors.
++
++        Enables -march=bdver4
++
++config MZEN
++      bool "AMD Zen"
++      ---help---
++        Select this for AMD Family 17h Zen processors.
++
++        Enables -march=znver1
+ 
+ config MCRUSOE
+       bool "Crusoe"
+@@ -253,6 +324,7 @@ config MVIAC7
+ 
+ config MPSC
+       bool "Intel P4 / older Netburst based Xeon"
++      select X86_P6_NOP
+       depends on X86_64
+       ---help---
+         Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
+@@ -262,23 +334,126 @@ config MPSC
+         using the cpu family field
+         in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
+ 
++config MATOM
++      bool "Intel Atom"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for the Intel Atom platform. Intel Atom CPUs have an
++        in-order pipelining architecture and thus can benefit from
++        accordingly optimized code. Use a recent GCC with specific Atom
++        support in order to fully benefit from selecting this option.
++
+ config MCORE2
+-      bool "Core 2/newer Xeon"
++      bool "Intel Core 2"
++      select X86_P6_NOP
++
+       ---help---
+ 
+         Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and
+         53xx) CPUs. You can distinguish newer from older Xeons by the CPU
+         family in /proc/cpuinfo. Newer ones have 6 and older ones 15
+         (not a typo)
++        Enables -march=core2
+ 
+-config MATOM
+-      bool "Intel Atom"
++config MNEHALEM
++      bool "Intel Nehalem"
++      select X86_P6_NOP
+       ---help---
+ 
+-        Select this for the Intel Atom platform. Intel Atom CPUs have an
+-        in-order pipelining architecture and thus can benefit from
+-        accordingly optimized code. Use a recent GCC with specific Atom
+-        support in order to fully benefit from selecting this option.
++        Select this for 1st Gen Core processors in the Nehalem family.
++
++        Enables -march=nehalem
++
++config MWESTMERE
++      bool "Intel Westmere"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for the Intel Westmere formerly Nehalem-C family.
++
++        Enables -march=westmere
++
++config MSILVERMONT
++      bool "Intel Silvermont"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for the Intel Silvermont platform.
++
++        Enables -march=silvermont
++
++config MSANDYBRIDGE
++      bool "Intel Sandy Bridge"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 2nd Gen Core processors in the Sandy Bridge family.
++
++        Enables -march=sandybridge
++
++config MIVYBRIDGE
++      bool "Intel Ivy Bridge"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 3rd Gen Core processors in the Ivy Bridge family.
++
++        Enables -march=ivybridge
++
++config MHASWELL
++      bool "Intel Haswell"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 4th Gen Core processors in the Haswell family.
++
++        Enables -march=haswell
++
++config MBROADWELL
++      bool "Intel Broadwell"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 5th Gen Core processors in the Broadwell family.
++
++        Enables -march=broadwell
++
++config MSKYLAKE
++      bool "Intel Skylake"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 6th Gen Core processors in the Skylake family.
++
++        Enables -march=skylake
++
++config MSKYLAKEX
++      bool "Intel Skylake X"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 6th Gen Core processors in the Skylake X family.
++
++        Enables -march=skylake-avx512
++
++config MCANNONLAKE
++      bool "Intel Cannon Lake"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 8th Gen Core processors
++
++        Enables -march=cannonlake
++
++config MICELAKE
++      bool "Intel Ice Lake"
++      select X86_P6_NOP
++      ---help---
++
++        Select this for 8th Gen Core processors in the Ice Lake family.
++
++        Enables -march=icelake
+ 
+ config GENERIC_CPU
+       bool "Generic-x86-64"
+@@ -287,6 +462,19 @@ config GENERIC_CPU
+         Generic x86-64 CPU.
+         Run equally well on all x86-64 CPUs.
+ 
++config MNATIVE
++ bool "Native optimizations autodetected by GCC"
++ ---help---
++
++   GCC 4.2 and above support -march=native, which automatically detects
++   the optimum settings to use based on your processor. -march=native
++   also detects and applies additional settings beyond -march specific
++   to your CPU, (eg. -msse4). Unless you have a specific reason not to
++   (e.g. distcc cross-compiling), you should probably be using
++   -march=native rather than anything listed below.
++
++   Enables -march=native
++
+ endchoice
+ 
+ config X86_GENERIC
+@@ -311,7 +499,7 @@ config X86_INTERNODE_CACHE_SHIFT
+ config X86_L1_CACHE_SHIFT
+       int
+       default "7" if MPENTIUM4 || MPSC
+-      default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || 
X86_GENERIC || GENERIC_CPU
++      default "6" if MK7 || MK8 || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT 
|| MBULLDOZER || MPILEDRIVER || MSTEAMROLLER || MEXCAVATOR || MZEN || MJAGUAR 
|| MPENTIUMM || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE 
|| MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE 
|| MICELAKE || MNATIVE || 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
+ 
+@@ -329,39 +517,40 @@ config X86_ALIGNMENT_16
+ 
+ config X86_INTEL_USERCOPY
+       def_bool y
+-      depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || 
M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2
++      depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || 
M586MMX || X86_GENERIC || MK8 || MK8SSE3 || MK7 || MEFFICEON || MCORE2 || MK10 
|| MBARCELONA || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || 
MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || 
MICELAKE || MNATIVE
+ 
+ config X86_USE_PPRO_CHECKSUM
+       def_bool y
+-      depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || 
MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 
|| MVIAC7 || MEFFICEON || MGEODE_LX || MCORE2 || MATOM
++      depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MK10 
|| MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || 
MK8SSE3 || MVIAC3_2 || MVIAC7 || MEFFICEON || MGEODE_LX || MCORE2 || MNEHALEM 
|| MWESTMERE || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || 
MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MATOM || 
MNATIVE
+ 
+ config X86_USE_3DNOW
+       def_bool y
+       depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
+ 
+-#
+-# P6_NOPs are a relatively minor optimization that require a family >=
+-# 6 processor, except that it is broken on certain VIA chips.
+-# Furthermore, AMD chips prefer a totally different sequence of NOPs
+-# (which work on all CPUs).  In addition, it looks like Virtual PC
+-# does not understand them.
+-#
+-# As a result, disallow these if we're not compiling for X86_64 (these
+-# NOPs do work on all x86-64 capable chips); the list of processors in
+-# the right-hand clause are the cores that benefit from this optimization.
+-#
+ config X86_P6_NOP
+-      def_bool y
+-      depends on X86_64
+-      depends on (MCORE2 || MPENTIUM4 || MPSC)
++      default n
++      bool "Support for P6_NOPs on Intel chips"
++      depends on (MCORE2 || MPENTIUM4 || MPSC || MATOM || MNEHALEM || 
MWESTMERE || MSILVERMONT  || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || 
MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MNATIVE)
++      ---help---
++      P6_NOPs are a relatively minor optimization that require a family >=
++      6 processor, except that it is broken on certain VIA chips.
++      Furthermore, AMD chips prefer a totally different sequence of NOPs
++      (which work on all CPUs).  In addition, it looks like Virtual PC
++      does not understand them.
++
++      As a result, disallow these if we're not compiling for X86_64 (these
++      NOPs do work on all x86-64 capable chips); the list of processors in
++      the right-hand clause are the cores that benefit from this optimization.
+ 
++      Say Y if you have Intel CPU newer than Pentium Pro, N otherwise.
++ 
+ config X86_TSC
+       def_bool y
+-      depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || 
MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX 
|| M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2 || 
MATOM) || X86_64
++      depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || 
MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX 
|| M586TSC || MK8 || MK8SSE3 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || 
MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || 
MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || 
MNATIVE || MATOM) || X86_64
+ 
+ config X86_CMPXCHG64
+       def_bool y
+-      depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || 
MPENTIUMIII || MPENTIUMII || M686 || M586TSC || M586MMX || MATOM || MGEODE_LX 
|| MGEODEGX1 || MK6 || MK7 || MK8
++      depends on (MK8 || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || 
MBULLDOZER || MPILEDRIVER || MSTEAMROLLER || MEXCAVATOR || MZEN || MJAGUAR || 
MK7 || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || 
MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || 
MICELAKE || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || 
MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MNATIVE || MATOM || 
MGEODE_LX)
+ 
+ # this should be set for all -march=.. options where the compiler
+ # generates cmov.
+--- a/arch/x86/Makefile        2019-02-22 09:21:58.196924367 -0500
++++ b/arch/x86/Makefile        2019-02-22 09:36:27.310577832 -0500
+@@ -118,13 +118,46 @@ else
+       KBUILD_CFLAGS += $(call cc-option,-mskip-rax-setup)
+ 
+         # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
++              cflags-$(CONFIG_MNATIVE) += $(call cc-option,-march=native)
+         cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
++        cflags-$(CONFIG_MK8SSE3) += $(call cc-option,-march=k8-sse3,-mtune=k8)
++        cflags-$(CONFIG_MK10) += $(call cc-option,-march=amdfam10)
++        cflags-$(CONFIG_MBARCELONA) += $(call cc-option,-march=barcelona)
++        cflags-$(CONFIG_MBOBCAT) += $(call cc-option,-march=btver1)
++        cflags-$(CONFIG_MJAGUAR) += $(call cc-option,-march=btver2)
++        cflags-$(CONFIG_MBULLDOZER) += $(call cc-option,-march=bdver1)
++        cflags-$(CONFIG_MPILEDRIVER) += $(call cc-option,-march=bdver2)
++        cflags-$(CONFIG_MSTEAMROLLER) += $(call cc-option,-march=bdver3)
++        cflags-$(CONFIG_MEXCAVATOR) += $(call cc-option,-march=bdver4)
++        cflags-$(CONFIG_MZEN) += $(call cc-option,-march=znver1)
+         cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+ 
+         cflags-$(CONFIG_MCORE2) += \
+-                $(call cc-option,-march=core2,$(call 
cc-option,-mtune=generic))
+-      cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
+-              $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
++                $(call cc-option,-march=core2,$(call cc-option,-mtune=core2))
++        cflags-$(CONFIG_MNEHALEM) += \
++                $(call cc-option,-march=nehalem,$(call 
cc-option,-mtune=nehalem))
++        cflags-$(CONFIG_MWESTMERE) += \
++                $(call cc-option,-march=westmere,$(call 
cc-option,-mtune=westmere))
++        cflags-$(CONFIG_MSILVERMONT) += \
++                $(call cc-option,-march=silvermont,$(call 
cc-option,-mtune=silvermont))
++        cflags-$(CONFIG_MSANDYBRIDGE) += \
++                $(call cc-option,-march=sandybridge,$(call 
cc-option,-mtune=sandybridge))
++        cflags-$(CONFIG_MIVYBRIDGE) += \
++                $(call cc-option,-march=ivybridge,$(call 
cc-option,-mtune=ivybridge))
++        cflags-$(CONFIG_MHASWELL) += \
++                $(call cc-option,-march=haswell,$(call 
cc-option,-mtune=haswell))
++        cflags-$(CONFIG_MBROADWELL) += \
++                $(call cc-option,-march=broadwell,$(call 
cc-option,-mtune=broadwell))
++        cflags-$(CONFIG_MSKYLAKE) += \
++                $(call cc-option,-march=skylake,$(call 
cc-option,-mtune=skylake))
++        cflags-$(CONFIG_MSKYLAKEX) += \
++                $(call cc-option,-march=skylake-avx512,$(call 
cc-option,-mtune=skylake-avx512))
++        cflags-$(CONFIG_MCANNONLAKE) += \
++                $(call cc-option,-march=cannonlake,$(call 
cc-option,-mtune=cannonlake))
++        cflags-$(CONFIG_MICELAKE) += \
++                $(call cc-option,-march=icelake,$(call 
cc-option,-mtune=icelake))
++        cflags-$(CONFIG_MATOM) += $(call cc-option,-march=bonnell) \
++                $(call cc-option,-mtune=bonnell,$(call 
cc-option,-mtune=generic))
+         cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
+         KBUILD_CFLAGS += $(cflags-y)
+ 
+--- a/arch/x86/include/asm/module.h    2019-02-22 09:22:26.726997480 -0500
++++ b/arch/x86/include/asm/module.h    2019-02-22 09:40:04.231493392 -0500
+@@ -25,6 +25,30 @@ struct mod_arch_specific {
+ #define MODULE_PROC_FAMILY "586MMX "
+ #elif defined CONFIG_MCORE2
+ #define MODULE_PROC_FAMILY "CORE2 "
++#elif defined CONFIG_MNATIVE
++#define MODULE_PROC_FAMILY "NATIVE "
++#elif defined CONFIG_MNEHALEM
++#define MODULE_PROC_FAMILY "NEHALEM "
++#elif defined CONFIG_MWESTMERE
++#define MODULE_PROC_FAMILY "WESTMERE "
++#elif defined CONFIG_MSILVERMONT
++#define MODULE_PROC_FAMILY "SILVERMONT "
++#elif defined CONFIG_MSANDYBRIDGE
++#define MODULE_PROC_FAMILY "SANDYBRIDGE "
++#elif defined CONFIG_MIVYBRIDGE
++#define MODULE_PROC_FAMILY "IVYBRIDGE "
++#elif defined CONFIG_MHASWELL
++#define MODULE_PROC_FAMILY "HASWELL "
++#elif defined CONFIG_MBROADWELL
++#define MODULE_PROC_FAMILY "BROADWELL "
++#elif defined CONFIG_MSKYLAKE
++#define MODULE_PROC_FAMILY "SKYLAKE "
++#elif defined CONFIG_MSKYLAKEX
++#define MODULE_PROC_FAMILY "SKYLAKEX "
++#elif defined CONFIG_MCANNONLAKE
++#define MODULE_PROC_FAMILY "CANNONLAKE "
++#elif defined CONFIG_MICELAKE
++#define MODULE_PROC_FAMILY "ICELAKE "
+ #elif defined CONFIG_MATOM
+ #define MODULE_PROC_FAMILY "ATOM "
+ #elif defined CONFIG_M686
+@@ -43,6 +67,26 @@ struct mod_arch_specific {
+ #define MODULE_PROC_FAMILY "K7 "
+ #elif defined CONFIG_MK8
+ #define MODULE_PROC_FAMILY "K8 "
++#elif defined CONFIG_MK8SSE3
++#define MODULE_PROC_FAMILY "K8SSE3 "
++#elif defined CONFIG_MK10
++#define MODULE_PROC_FAMILY "K10 "
++#elif defined CONFIG_MBARCELONA
++#define MODULE_PROC_FAMILY "BARCELONA "
++#elif defined CONFIG_MBOBCAT
++#define MODULE_PROC_FAMILY "BOBCAT "
++#elif defined CONFIG_MBULLDOZER
++#define MODULE_PROC_FAMILY "BULLDOZER "
++#elif defined CONFIG_MPILEDRIVER
++#define MODULE_PROC_FAMILY "PILEDRIVER "
++#elif defined CONFIG_MSTEAMROLLER
++#define MODULE_PROC_FAMILY "STEAMROLLER "
++#elif defined CONFIG_MJAGUAR
++#define MODULE_PROC_FAMILY "JAGUAR "
++#elif defined CONFIG_MEXCAVATOR
++#define MODULE_PROC_FAMILY "EXCAVATOR "
++#elif defined CONFIG_MZEN
++#define MODULE_PROC_FAMILY "ZEN "
+ #elif defined CONFIG_MELAN
+ #define MODULE_PROC_FAMILY "ELAN "
+ #elif defined CONFIG_MCRUSOE

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