[gentoo-commits] proj/linux-patches:master commit in: /

["Mike Pagano" <mpagano@gentoo.org>]

commit:     18f6a4706fd8339bf905e5a36d5fcff525915340
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sat Mar 21 20:00:01 2015 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sat Mar 21 20:00:01 2015 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=18f6a470

Update gcc >= 4.9 optimization patch. See bug #544028.

 ...-additional-cpu-optimizations-for-gcc-4.9.patch | 67 +++++++++++++---------
 1 file changed, 41 insertions(+), 26 deletions(-)

diff --git a/5010_enable-additional-cpu-optimizations-for-gcc-4.9.patch b/5010_enable-additional-cpu-optimizations-for-gcc-4.9.patch
index f931f75..c4efd06 100644
--- a/5010_enable-additional-cpu-optimizations-for-gcc-4.9.patch
+++ b/5010_enable-additional-cpu-optimizations-for-gcc-4.9.patch
@@ -18,13 +18,14 @@ should use the newer 'march=bonnell' flag for atom processors.
 I have made that change to this patch set as well.  See the following kernel
 bug report to see if I'm right: https://bugzilla.kernel.org/show_bug.cgi?id=77461
 
-This patch will expand the number of microarchitectures to include new
+This patch will expand the number of microarchitectures to include newer
 processors including: AMD K10-family, AMD Family 10h (Barcelona), AMD Family
 14h (Bobcat), AMD Family 15h (Bulldozer), AMD Family 15h (Piledriver), AMD
 Family 16h (Jaguar), 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), and Intel 5th
-Gen Core i3/i5/i7 (Broadwell). It also offers the compiler the 'native' flag.
+Core i3/i5/i7 (Ivybridge), Intel 4th Gen Core i3/i5/i7 (Haswell), Intel 5th
+Gen Core i3/i5/i7 (Broadwell), and the low power Silvermont series of Atom
+processors (Silvermont). It also offers the compiler the 'native' flag.
 
 Small but real speed increases are measurable using a make endpoint comparing
 a generic kernel to one built with one of the respective microarchs.
@@ -36,9 +37,9 @@ REQUIREMENTS
 linux version >=3.15
 gcc version >=4.9
 
---- a/arch/x86/include/asm/module.h	2014-08-03 18:25:02.000000000 -0400
-+++ b/arch/x86/include/asm/module.h	2014-09-13 09:37:16.721385247 -0400
-@@ -15,6 +15,20 @@
+--- a/arch/x86/include/asm/module.h	2014-06-16 16:44:27.000000000 -0400
++++ b/arch/x86/include/asm/module.h	2015-03-07 03:27:32.556672424 -0500
+@@ -15,6 +15,22 @@
  #define MODULE_PROC_FAMILY "586MMX "
  #elif defined CONFIG_MCORE2
  #define MODULE_PROC_FAMILY "CORE2 "
@@ -48,6 +49,8 @@ gcc version >=4.9
 +#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
@@ -59,7 +62,7 @@ gcc version >=4.9
  #elif defined CONFIG_MATOM
  #define MODULE_PROC_FAMILY "ATOM "
  #elif defined CONFIG_M686
-@@ -33,6 +47,20 @@
+@@ -33,6 +49,20 @@
  #define MODULE_PROC_FAMILY "K7 "
  #elif defined CONFIG_MK8
  #define MODULE_PROC_FAMILY "K8 "
@@ -80,8 +83,8 @@ gcc version >=4.9
  #elif defined CONFIG_MELAN
  #define MODULE_PROC_FAMILY "ELAN "
  #elif defined CONFIG_MCRUSOE
---- a/arch/x86/Kconfig.cpu	2014-08-03 18:25:02.000000000 -0400
-+++ b/arch/x86/Kconfig.cpu	2014-09-13 09:37:16.721385247 -0400
+--- a/arch/x86/Kconfig.cpu	2014-06-16 16:44:27.000000000 -0400
++++ b/arch/x86/Kconfig.cpu	2015-03-07 03:32:14.337713226 -0500
 @@ -137,9 +137,8 @@ config MPENTIUM4
  		-Paxville
  		-Dempsey
@@ -185,7 +188,7 @@ gcc version >=4.9
  	---help---
  
  	  Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and
-@@ -260,14 +318,55 @@ config MCORE2
+@@ -260,14 +318,63 @@ config MCORE2
  	  family in /proc/cpuinfo. Newer ones have 6 and older ones 15
  	  (not a typo)
  
@@ -213,6 +216,14 @@ gcc version >=4.9
 +
 +	  Enables -march=westmere
 +
++config MSILVERMONT
++	bool "Intel Silvermont"
++	---help---
++
++	  Select this for the Intel Silvermont platform.
++
++	  Enables -march=silvermont
++
 +config MSANDYBRIDGE
 +	bool "Intel Sandy Bridge"
 +	---help---
@@ -247,7 +258,7 @@ gcc version >=4.9
  
  config GENERIC_CPU
  	bool "Generic-x86-64"
-@@ -276,6 +375,19 @@ config GENERIC_CPU
+@@ -276,6 +383,19 @@ config GENERIC_CPU
  	  Generic x86-64 CPU.
  	  Run equally well on all x86-64 CPUs.
  
@@ -267,53 +278,53 @@ gcc version >=4.9
  endchoice
  
  config X86_GENERIC
-@@ -300,7 +412,7 @@ config X86_INTERNODE_CACHE_SHIFT
+@@ -300,7 +420,7 @@ 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 || MJAGUAR || MPENTIUMM || MCORE2 || MNEHALEM || MWESTMERE || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || BROADWELL || MNATIVE || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU
++	default "6" if MK7 || MK8 || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || MBULLDOZER || MPILEDRIVER || MJAGUAR || MPENTIUMM || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || BROADWELL || 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
  
-@@ -331,11 +443,11 @@ config X86_ALIGNMENT_16
+@@ -331,11 +451,11 @@ 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 || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MNATIVE
++	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK8SSE3 || MK7 || MEFFICEON || MCORE2 || MK10 || MBARCELONA || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || 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 || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MATOM || MNATIVE
++	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 || MATOM || MNATIVE
  
  config X86_USE_3DNOW
  	def_bool y
-@@ -359,17 +471,17 @@ config X86_P6_NOP
+@@ -359,17 +479,17 @@ config X86_P6_NOP
  
  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 || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MNATIVE || 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 || MNATIVE || MATOM) || X86_64
  
  config X86_CMPXCHG64
  	def_bool y
 -	depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MATOM
-+	depends on X86_PAE || X86_64 || MCORE2 || MNEHALEM || MWESTMERE || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MATOM || MNATIVE
++	depends on X86_PAE || X86_64 || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MATOM || MNATIVE
  
  # this should be set for all -march=.. options where the compiler
  # generates cmov.
  config X86_CMOV
  	def_bool y
 -	depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
-+	depends on (MK8 || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || MBULLDOZER || MPILEDRIVER || MJAGUAR || MK7 || MCORE2 || MNEHALEM || MWESTMERE || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MNATIVE || MATOM || MGEODE_LX)
++	depends on (MK8 || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || MBULLDOZER || MPILEDRIVER || MJAGUAR || MK7 || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MNATIVE || MATOM || MGEODE_LX)
  
  config X86_MINIMUM_CPU_FAMILY
  	int
---- a/arch/x86/Makefile	2014-08-03 18:25:02.000000000 -0400
-+++ b/arch/x86/Makefile	2014-09-13 09:37:16.721385247 -0400
-@@ -92,13 +92,33 @@ else
+--- a/arch/x86/Makefile	2014-06-16 16:44:27.000000000 -0400
++++ b/arch/x86/Makefile	2015-03-07 03:33:27.650843211 -0500
+@@ -92,13 +92,35 @@ else
  	KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3)
  
          # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
@@ -337,6 +348,8 @@ gcc version >=4.9
 +                $(call cc-option,-march=nehalem,$(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-$(CONFIG_MIVYBRIDGE) += \
@@ -350,8 +363,8 @@ gcc version >=4.9
          cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
          KBUILD_CFLAGS += $(cflags-y)
  
---- a/arch/x86/Makefile_32.cpu	2014-08-03 18:25:02.000000000 -0400
-+++ b/arch/x86/Makefile_32.cpu	2014-09-13 09:37:16.721385247 -0400
+--- a/arch/x86/Makefile_32.cpu	2014-06-16 16:44:27.000000000 -0400
++++ b/arch/x86/Makefile_32.cpu	2015-03-07 03:34:15.203586024 -0500
 @@ -23,7 +23,15 @@ cflags-$(CONFIG_MK6)		+= -march=k6
  # Please note, that patches that add -march=athlon-xp and friends are pointless.
  # They make zero difference whatsosever to performance at this time.
@@ -368,7 +381,7 @@ gcc version >=4.9
  cflags-$(CONFIG_MCRUSOE)	+= -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
  cflags-$(CONFIG_MEFFICEON)	+= -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
  cflags-$(CONFIG_MWINCHIPC6)	+= $(call cc-option,-march=winchip-c6,-march=i586)
-@@ -32,8 +40,14 @@ cflags-$(CONFIG_MCYRIXIII)	+= $(call cc-
+@@ -32,8 +40,15 @@ cflags-$(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)
@@ -376,6 +389,7 @@ gcc version >=4.9
 -	$(call cc-option,-mtune=atom,$(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)
@@ -385,3 +399,4 @@ gcc version >=4.9
  
  # AMD Elan support
  cflags-$(CONFIG_MELAN)		+= -march=i486
+