commit: 6da40c3954cb038dd4c7f7eee0a10f735a26460e Author: Alice Ferrazzi <alicef <AT> gentoo <DOT> org> AuthorDate: Fri Sep 3 10:07:24 2021 +0000 Commit: Alice Ferrazzi <alicef <AT> gentoo <DOT> org> CommitDate: Fri Sep 3 10:08:03 2021 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=6da40c39
Bump 20210818 from commit f1d0af2c9d807b137909e98c11caf7504f4e2066 Signed-off-by: Alice Ferrazzi <alicef <AT> gentoo.org> 5010_enable-cpu-optimizations-universal.patch | 79 +++++++++++++-------------- 1 file changed, 38 insertions(+), 41 deletions(-) diff --git a/5010_enable-cpu-optimizations-universal.patch b/5010_enable-cpu-optimizations-universal.patch index 2cc90b0..5b7cb95 100644 --- a/5010_enable-cpu-optimizations-universal.patch +++ b/5010_enable-cpu-optimizations-universal.patch @@ -1,24 +1,18 @@ -From cda27318e4b73d20f0edb497dd86ed4c1d051ad6 Mon Sep 17 00:00:00 2001 +From 9abcc823066eabbe75ef07c9ce977757b538bf4f Mon Sep 17 00:00:00 2001 From: graysky <gray...@archlinux.us> -Date: Mon, 12 Apr 2021 07:14:01 -0400 +Date: Sun, 6 Jun 2021 09:28:29 -0400 Subject: [PATCH] more uarches for kernel 4.19-5.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit -WARNING -This patch works with all gcc versions 9.0+ and with kernel version 4.19-5.4 -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] - FEATURES This patch adds additional CPU options to the Linux kernel accessible under: Processor type and features ---> Processor family ---> -With the release of gcc 11.0, several generic 64-bit levels are offered which -are good for supported Intel or AMD CPUs: +With the release of gcc 11.1 and clang 12.0, several generic 64-bit levels are +offered which are good for supported Intel or AMD CPUs: • x86-64-v2 • x86-64-v3 • x86-64-v4 @@ -27,7 +21,7 @@ Users of glibc 2.33 and above can see which level is supported by current hardware by running: /lib/ld-linux-x86-64.so.2 --help | grep supported -Alternatively, compare the flags from /proc/cpuinfo to this list.[2] +Alternatively, compare the flags from /proc/cpuinfo to this list.[1] CPU-specific microarchitectures include: • AMD Improved K8-family @@ -63,13 +57,15 @@ CPU-specific microarchitectures include: • Intel 12th Gen i3/i5/i7/i9-family (Alder Lake)‡ Notes: If not otherwise noted, gcc >=9.1 is required for support. - *Requires gcc >=10.1 †Required gcc >=10.3 ‡Required gcc >=11.0 + *Requires gcc >=10.1 or clang >=10.0 + †Required gcc >=10.3 or clang >=12.0 + ‡Required gcc >=11.1 or clang >=12.0 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] +machine under the constraints of the selected instruction set."[2] Users of Intel CPUs should select the 'Intel-Native' option and users of AMD CPUs should select the 'AMD-Native' option. @@ -77,9 +73,9 @@ CPUs should select the 'AMD-Native' option. MINOR NOTES RELATING TO INTEL ATOM PROCESSORS This patch also changes -march=atom to -march=bonnell in accordance with the gcc v4.9 changes. Upstream is using the deprecated -match=atom flags when I -believe it should use the newer -march=bonnell flag for atom processors.[4] +believe it should use the newer -march=bonnell flag for atom processors.[3] -It is not recommended to compile on Atom-CPUs with the 'native' option.[5] The +It is not recommended to compile on Atom-CPUs with the 'native' option.[4] The recommendation is to use the 'atom' option instead. BENEFITS @@ -91,18 +87,19 @@ https://github.com/graysky2/kernel_gcc_patch REQUIREMENTS linux version 4.19-5.4 -gcc version >=9.0 +gcc version >=9.0 or clang version >=9.0 ACKNOWLEDGMENTS -This patch builds on the seminal work by Jeroen.[6] +This patch builds on the seminal work by Jeroen.[5] REFERENCES -1. https://gcc.gnu.org/gcc-4.9/changes.html -2. https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/77566eb03bc6a326811cb7e9 -3. https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html#index-x86-Options -4. https://bugzilla.kernel.org/show_bug.cgi?id=77461 -5. https://github.com/graysky2/kernel_gcc_patch/issues/15 -6. http://www.linuxforge.net/docs/linux/linux-gcc.php +1. https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/77566eb03bc6a326811cb7e9 +2. https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html#index-x86-Options +3. https://bugzilla.kernel.org/show_bug.cgi?id=77461 +4. https://github.com/graysky2/kernel_gcc_patch/issues/15 +5. http://www.linuxforge.net/docs/linux/linux-gcc.php + +Signed-off-by: graysky <gray...@archlinux.us> --- arch/x86/Kconfig.cpu | 333 ++++++++++++++++++++++++++++++++-- arch/x86/Makefile | 47 ++++- @@ -110,7 +107,7 @@ REFERENCES 3 files changed, 428 insertions(+), 18 deletions(-) diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu -index 8e29c991ba3e..bc76256532bb 100644 +index 8e29c991ba3e..c74f92492a2e 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -148,9 +148,8 @@ config MPENTIUM4 @@ -224,7 +221,7 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config MZEN3 + bool "AMD Zen 3" -+ depends on GCC_VERSION > 100300 ++ depends on (CC_IS_GCC && GCC_VERSION >= 100300) || (CC_IS_CLANG && CLANG_VERSION >= 120000) + ---help--- + Select this for AMD Family 19h Zen 3 processors. + @@ -383,7 +380,7 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config MCOOPERLAKE + bool "Intel Cooper Lake" -+ depends on GCC_VERSION > 100100 ++ depends on (CC_IS_GCC && GCC_VERSION > 100100) || (CC_IS_CLANG && CLANG_VERSION >= 100000) + select X86_P6_NOP + ---help--- + @@ -393,7 +390,7 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config MTIGERLAKE + bool "Intel Tiger Lake" -+ depends on GCC_VERSION > 100100 ++ depends on (CC_IS_GCC && GCC_VERSION > 100100) || (CC_IS_CLANG && CLANG_VERSION >= 100000) + select X86_P6_NOP + ---help--- + @@ -403,7 +400,7 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config MSAPPHIRERAPIDS + bool "Intel Sapphire Rapids" -+ depends on GCC_VERSION > 110000 ++ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000) + select X86_P6_NOP + ---help--- + @@ -413,7 +410,7 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config MROCKETLAKE + bool "Intel Rocket Lake" -+ depends on GCC_VERSION > 110000 ++ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000) + select X86_P6_NOP + ---help--- + @@ -423,7 +420,7 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config MALDERLAKE + bool "Intel Alder Lake" -+ depends on GCC_VERSION > 110000 ++ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000) + select X86_P6_NOP + ---help--- + @@ -440,7 +437,7 @@ index 8e29c991ba3e..bc76256532bb 100644 +config GENERIC_CPU2 + bool "Generic-x86-64-v2" -+ depends on GCC_VERSION > 110000 ++ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000) + depends on X86_64 + ---help--- + Generic x86-64 CPU. @@ -448,7 +445,7 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config GENERIC_CPU3 + bool "Generic-x86-64-v3" -+ depends on GCC_VERSION > 110000 ++ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000) + depends on X86_64 + ---help--- + Generic x86-64-v3 CPU with v3 instructions. @@ -456,18 +453,18 @@ index 8e29c991ba3e..bc76256532bb 100644 + +config GENERIC_CPU4 + bool "Generic-x86-64-v4" -+ depends on GCC_VERSION > 110000 ++ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000) + depends on X86_64 + ---help--- + Generic x86-64 CPU with v4 instructions. + Run equally well on all x86-64 CPUs with min support of x86-64-v4. + +config MNATIVE_INTEL -+ bool "Intel-Native optimizations autodetected by GCC" ++ bool "Intel-Native optimizations autodetected by the compiler" + ---help--- + -+ GCC 4.2 and above support -march=native, which automatically detects -+ the optimum settings to use based on your processor. Do NOT use this ++ Clang 3.8 and GCC 4.2 and above support -march=native, which automatically ++ detects the optimum settings to use based on your processor. Do NOT use this + for AMD CPUs. Intel Only! + + Enables -march=native @@ -476,9 +473,9 @@ index 8e29c991ba3e..bc76256532bb 100644 + bool "AMD-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. Do NOT use this -+ for AMD CPUs. AMD Only! ++ Clang 3.8 and GCC 4.2 and above support -march=native, which automatically ++ detects the optimum settings to use based on your processor. Do NOT use this ++ for Intel CPUs. AMD Only! + + Enables -march=native + @@ -541,10 +538,10 @@ index 8e29c991ba3e..bc76256532bb 100644 default "4" diff --git a/arch/x86/Makefile b/arch/x86/Makefile -index 94df0868804b..09b1905de4cb 100644 +index 69f0cb01c666..3d9e20a11f1b 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile -@@ -121,11 +121,48 @@ else +@@ -125,11 +125,48 @@ else # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu) cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8) cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
