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Subject[PATCH RFC 1/1] x86: adds additional CPU options
Date
This patch adds additional CPU options to the Linux kernel.
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)

Signed-off-by: John graysky <graysky@archlinux.us>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
---
arch/x86/Kconfig.cpu | 172 ++++++++++++++++++++++++++++++++--
arch/x86/Makefile | 21 +++++
arch/x86/Makefile_32.cpu | 21 +++++
arch/x86/include/asm/module.h | 42 +++++++++
4 files changed, 250 insertions(+), 6 deletions(-)

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 6adce15268bd..b6b881b5a3ce 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -172,6 +172,77 @@ config MK8
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 use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MBOBCAT
+ bool "AMD Bobcat"
+ help
+ Select this for AMD Family 14h Bobcat processors.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MJAGUAR
+ bool "AMD Jaguar"
+ help
+ Select this for AMD Family 16h Jaguar processors.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MBULLDOZER
+ bool "AMD Bulldozer"
+ help
+ Select this for AMD Family 15h Bulldozer processors.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MPILEDRIVER
+ bool "AMD Piledriver"
+ help
+ Select this for AMD Family 15h Piledriver processors.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MSTEAMROLLER
+ bool "AMD Steamroller"
+ help
+ Select this for AMD Family 15h Steamroller processors.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MEXCAVATOR
+ bool "AMD Excavator"
+ help
+ Select this for AMD Family 15h Excavator processors.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MZEN
+ bool "AMD Zen"
+ help
+ Select this for AMD Family 17h Zen processors.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
config MCRUSOE
bool "Crusoe"
depends on X86_32
@@ -280,6 +351,95 @@ config MATOM
accordingly optimized code. Use a recent GCC with specific Atom
support in order to fully benefit from selecting this option.

+config MNEHALEM
+ bool "Intel Nehalem"
+ select X86_P6_NOP
+ help
+ Select this for 1st Gen Core processors in the Nehalem family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MWESTMERE
+ bool "Intel Westmere"
+ select X86_P6_NOP
+ help
+ Select this for the Intel Westmere formerly Nehalem-C family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MSILVERMONT
+ bool "Intel Silvermont"
+ select X86_P6_NOP
+ help
+ Select this for the Intel Silvermont platform.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MSANDYBRIDGE
+ bool "Intel Sandy Bridge"
+ select X86_P6_NOP
+ help
+ Select this for 2nd Gen Core processors in the Sandy Bridge family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MIVYBRIDGE
+ bool "Intel Ivy Bridge"
+ select X86_P6_NOP
+ help
+ Select this for 3rd Gen Core processors in the Ivy Bridge family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MHASWELL
+ bool "Intel Haswell"
+ select X86_P6_NOP
+ help
+ Select this for 4th Gen Core processors in the Haswell family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MBROADWELL
+ bool "Intel Broadwell"
+ select X86_P6_NOP
+ help
+ Select this for 5th Gen Core processors in the Broadwell family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MSKYLAKE
+ bool "Intel Skylake"
+ select X86_P6_NOP
+ help
+ Select this for 6th Gen Core processors in the Skylake family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MSKYLAKEX
+ bool "Intel Skylake X"
+ select X86_P6_NOP
+ help
+ Select this for 6th Gen Core processors in the Skylake X family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MCANNONLAKE
+ bool "Intel Cannon Lake"
+ select X86_P6_NOP
+ help
+ Select this for 8th Gen Core processors
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
+config MICELAKE
+ bool "Intel Ice Lake"
+ select X86_P6_NOP
+ select CC_MARCH_ICELAKE if GCC_VERSION > 70000
+ help
+ Select this for 8th Gen Core processors in the Ice Lake family.
+ Enables use of some extended instructions, and passes appropriate
+ optimization flags to GCC.
+
config GENERIC_CPU
bool "Generic-x86-64"
depends on X86_64
@@ -311,7 +471,7 @@ 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 || 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

@@ -329,11 +489,11 @@ 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 || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE

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

config X86_USE_3DNOW
def_bool y
@@ -353,11 +513,11 @@ config X86_USE_3DNOW
config X86_P6_NOP
def_bool y
depends on X86_64
- depends on (MCORE2 || MPENTIUM4 || MPSC)
+ depends on (MCORE2 || MPENTIUM4 || MPSC || MNEHALEM || MWESTMERE || MSILVERMONT || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE)

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 || MATOM) || X86_64

config X86_CMPXCHG64
def_bool y
@@ -367,7 +527,7 @@ config X86_CMPXCHG64
# 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 || 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 || MATOM || MGEODE_LX)

config X86_MINIMUM_CPU_FAMILY
int
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 76bc4dc03d5e..c0ac60f7e0a2 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -119,12 +119,33 @@ else

# FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
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))
+ 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_GENERIC_CPU) += $(call cc-option,-mtune=generic)
KBUILD_CFLAGS += $(cflags-y)

diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu
index 1f5faf8606b4..fb13e6a131d5 100644
--- a/arch/x86/Makefile_32.cpu
+++ b/arch/x86/Makefile_32.cpu
@@ -24,6 +24,16 @@ cflags-$(CONFIG_MK6) += -march=k6
# They make zero difference whatsosever to performance at this time.
cflags-$(CONFIG_MK7) += -march=athlon
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) += $(call cc-option,-march=winchip-c6,-march=i586)
@@ -34,6 +44,17 @@ cflags-$(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)

# AMD Elan support
cflags-$(CONFIG_MELAN) += -march=i486
diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
index 7948a17febb4..dc7be6f7df78 100644
--- a/arch/x86/include/asm/module.h
+++ b/arch/x86/include/asm/module.h
@@ -25,6 +25,28 @@ struct mod_arch_specific {
#define MODULE_PROC_FAMILY "586MMX "
#elif defined CONFIG_MCORE2
#define MODULE_PROC_FAMILY "CORE2 "
+#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 +65,26 @@ 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
--
2.19.2
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