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commit: bb94f673a30433c53477c8bedb4d23006859169a |
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Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
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AuthorDate: Thu Jul 1 14:29:16 2021 +0000 |
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Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
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CommitDate: Thu Jul 1 14:29:16 2021 +0000 |
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URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=bb94f673 |
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|
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Update CPU Opt Patch 06062021 |
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|
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Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> |
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|
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5010_enable-cpu-optimizations-universal.patch | 74 +++++++++++++-------------- |
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1 file changed, 36 insertions(+), 38 deletions(-) |
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|
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diff --git a/5010_enable-cpu-optimizations-universal.patch b/5010_enable-cpu-optimizations-universal.patch |
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index 1868f23..c45d13b 100644 |
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--- a/5010_enable-cpu-optimizations-universal.patch |
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+++ b/5010_enable-cpu-optimizations-universal.patch |
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@@ -1,23 +1,18 @@ |
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-From 59db769ad69e080c512b3890e1d27d6120f4a1a4 Mon Sep 17 00:00:00 2001 |
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+From 4af44fbc97bc51eb742f0d6555bde23cf580d4e3 Mon Sep 17 00:00:00 2001 |
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From: graysky <graysky@×××××××××.us> |
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-Date: Mon, 12 Apr 2021 07:09:27 -0400 |
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+Date: Sun, 6 Jun 2021 09:41:36 -0400 |
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Subject: [PATCH] more uarches for kernel 5.8+ |
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MIME-Version: 1.0 |
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Content-Type: text/plain; charset=UTF-8 |
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Content-Transfer-Encoding: 8bit |
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|
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-WARNING |
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-This patch works with all gcc versions 9.0+ and with kernel version 5.8+ and should |
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-NOT be applied when compiling on older versions of gcc due to key name changes |
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-of the march flags introduced with the version 4.9 release of gcc.[1] |
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- |
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FEATURES |
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This patch adds additional CPU options to the Linux kernel accessible under: |
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Processor type and features ---> |
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Processor family ---> |
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|
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-With the release of gcc 11.0, several generic 64-bit levels are offered which |
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-are good for supported Intel or AMD CPUs: |
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+With the release of gcc 11.1 and clang 12.0, several generic 64-bit levels are |
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+offered which are good for supported Intel or AMD CPUs: |
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• x86-64-v2 |
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• x86-64-v3 |
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• x86-64-v4 |
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@@ -26,7 +21,7 @@ Users of glibc 2.33 and above can see which level is supported by current |
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hardware by running: |
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/lib/ld-linux-x86-64.so.2 --help | grep supported |
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|
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-Alternatively, compare the flags from /proc/cpuinfo to this list.[2] |
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+Alternatively, compare the flags from /proc/cpuinfo to this list.[1] |
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|
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CPU-specific microarchitectures include: |
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• AMD Improved K8-family |
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@@ -62,13 +57,15 @@ CPU-specific microarchitectures include: |
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• Intel 12th Gen i3/i5/i7/i9-family (Alder Lake)‡ |
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|
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Notes: If not otherwise noted, gcc >=9.1 is required for support. |
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- *Requires gcc >=10.1 †Required gcc >=10.3 ‡Required gcc >=11.0 |
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+ *Requires gcc >=10.1 or clang >=10.0 |
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+ †Required gcc >=10.3 or clang >=12.0 |
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+ ‡Required gcc >=11.1 or clang >=12.0 |
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|
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It also offers to compile passing the 'native' option which, "selects the CPU |
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to generate code for at compilation time by determining the processor type of |
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the compiling machine. Using -march=native enables all instruction subsets |
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supported by the local machine and will produce code optimized for the local |
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-machine under the constraints of the selected instruction set."[3] |
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+machine under the constraints of the selected instruction set."[2] |
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|
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Users of Intel CPUs should select the 'Intel-Native' option and users of AMD |
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CPUs should select the 'AMD-Native' option. |
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@@ -76,9 +73,9 @@ CPUs should select the 'AMD-Native' option. |
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MINOR NOTES RELATING TO INTEL ATOM PROCESSORS |
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This patch also changes -march=atom to -march=bonnell in accordance with the |
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gcc v4.9 changes. Upstream is using the deprecated -match=atom flags when I |
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-believe it should use the newer -march=bonnell flag for atom processors.[4] |
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+believe it should use the newer -march=bonnell flag for atom processors.[3] |
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|
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-It is not recommended to compile on Atom-CPUs with the 'native' option.[5] The |
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+It is not recommended to compile on Atom-CPUs with the 'native' option.[4] The |
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recommendation is to use the 'atom' option instead. |
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|
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BENEFITS |
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@@ -90,18 +87,19 @@ https://github.com/graysky2/kernel_gcc_patch |
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|
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REQUIREMENTS |
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linux version >=5.8 |
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-gcc version >=9.0 |
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+gcc version >=9.0 or clang version >=9.0 |
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|
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ACKNOWLEDGMENTS |
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-This patch builds on the seminal work by Jeroen.[6] |
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+This patch builds on the seminal work by Jeroen.[5] |
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|
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REFERENCES |
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-1. https://gcc.gnu.org/gcc-4.9/changes.html |
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-2. https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/77566eb03bc6a326811cb7e9 |
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-3. https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html#index-x86-Options |
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-4. https://bugzilla.kernel.org/show_bug.cgi?id=77461 |
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-5. https://github.com/graysky2/kernel_gcc_patch/issues/15 |
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-6. http://www.linuxforge.net/docs/linux/linux-gcc.php |
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+1. https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/77566eb03bc6a326811cb7e9 |
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+2. https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html#index-x86-Options |
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+3. https://bugzilla.kernel.org/show_bug.cgi?id=77461 |
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+4. https://github.com/graysky2/kernel_gcc_patch/issues/15 |
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+5. http://www.linuxforge.net/docs/linux/linux-gcc.php |
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+ |
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+Signed-off-by: graysky <graysky@×××××××××.us> |
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--- |
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arch/x86/Kconfig.cpu | 332 ++++++++++++++++++++++++++++++-- |
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arch/x86/Makefile | 47 ++++- |
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@@ -109,7 +107,7 @@ REFERENCES |
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3 files changed, 428 insertions(+), 17 deletions(-) |
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|
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diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu |
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-index 814fe0d349b0..872b9cf598e3 100644 |
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+index 814fe0d349b0..8acf6519d279 100644 |
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--- a/arch/x86/Kconfig.cpu |
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+++ b/arch/x86/Kconfig.cpu |
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@@ -157,7 +157,7 @@ config MPENTIUM4 |
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@@ -221,7 +219,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config MZEN3 |
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+ bool "AMD Zen 3" |
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-+ depends on GCC_VERSION > 100300 |
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++ depends on ( CC_IS_GCC && GCC_VERSION >= 100300 ) || ( CC_IS_CLANG && CLANG_VERSION >= 120000 ) |
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+ help |
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+ Select this for AMD Family 19h Zen 3 processors. |
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+ |
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@@ -380,7 +378,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config MCOOPERLAKE |
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+ bool "Intel Cooper Lake" |
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-+ depends on GCC_VERSION > 100100 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 100100 ) || ( CC_IS_CLANG && CLANG_VERSION >= 100000 ) |
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+ select X86_P6_NOP |
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+ help |
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+ |
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@@ -390,7 +388,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config MTIGERLAKE |
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+ bool "Intel Tiger Lake" |
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-+ depends on GCC_VERSION > 100100 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 100100 ) || ( CC_IS_CLANG && CLANG_VERSION >= 100000 ) |
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+ select X86_P6_NOP |
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+ help |
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+ |
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@@ -400,7 +398,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config MSAPPHIRERAPIDS |
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+ bool "Intel Sapphire Rapids" |
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-+ depends on GCC_VERSION > 110000 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 110000 ) || ( CC_IS_CLANG && CLANG_VERSION >= 120000 ) |
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+ select X86_P6_NOP |
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+ help |
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+ |
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@@ -410,7 +408,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config MROCKETLAKE |
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+ bool "Intel Rocket Lake" |
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-+ depends on GCC_VERSION > 110000 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 110000 ) || ( CC_IS_CLANG && CLANG_VERSION >= 120000 ) |
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+ select X86_P6_NOP |
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+ help |
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+ |
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@@ -420,7 +418,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config MALDERLAKE |
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+ bool "Intel Alder Lake" |
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-+ depends on GCC_VERSION > 110000 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 110000 ) || ( CC_IS_CLANG && CLANG_VERSION >= 120000 ) |
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+ select X86_P6_NOP |
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+ help |
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+ |
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@@ -437,7 +435,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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|
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+config GENERIC_CPU2 |
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+ bool "Generic-x86-64-v2" |
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-+ depends on GCC_VERSION > 110000 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 110000 ) || ( CC_IS_CLANG && LANG_VERSION >= 120000 ) |
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+ depends on X86_64 |
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+ help |
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+ Generic x86-64 CPU. |
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@@ -445,7 +443,7 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config GENERIC_CPU3 |
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+ bool "Generic-x86-64-v3" |
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-+ depends on GCC_VERSION > 110000 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 110000 ) || ( CC_IS_CLANG && LANG_VERSION >= 120000 ) |
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+ depends on X86_64 |
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+ help |
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+ Generic x86-64-v3 CPU with v3 instructions. |
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@@ -453,27 +451,27 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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+ |
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+config GENERIC_CPU4 |
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+ bool "Generic-x86-64-v4" |
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-+ depends on GCC_VERSION > 110000 |
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++ depends on ( CC_IS_GCC && GCC_VERSION > 110000 ) || ( CC_IS_CLANG && LANG_VERSION >= 120000 ) |
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+ depends on X86_64 |
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+ help |
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+ Generic x86-64 CPU with v4 instructions. |
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+ Run equally well on all x86-64 CPUs with min support of x86-64-v4. |
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+ |
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+config MNATIVE_INTEL |
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-+ bool "Intel-Native optimizations autodetected by GCC" |
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++ bool "Intel-Native optimizations autodetected by the compiler" |
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+ help |
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+ |
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-+ GCC 4.2 and above support -march=native, which automatically detects |
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++ Clang 3.8, GCC 4.2 and above support -march=native, which automatically detects |
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+ the optimum settings to use based on your processor. Do NOT use this |
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+ for AMD CPUs. Intel Only! |
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+ |
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+ Enables -march=native |
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+ |
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+config MNATIVE_AMD |
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-+ bool "AMD-Native optimizations autodetected by GCC" |
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++ bool "AMD-Native optimizations autodetected by the compiler" |
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+ help |
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+ |
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-+ GCC 4.2 and above support -march=native, which automatically detects |
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++ Clang 3.8, GCC 4.2 and above support -march=native, which automatically detects |
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+ the optimum settings to use based on your processor. Do NOT use this |
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+ for Intel CPUs. AMD Only! |
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+ |
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@@ -538,10 +536,10 @@ index 814fe0d349b0..872b9cf598e3 100644 |
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default "4" |
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|
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diff --git a/arch/x86/Makefile b/arch/x86/Makefile |
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-index 9a85eae37b17..facf9a278fe3 100644 |
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+index 78faf9c7e3ae..ee0cd507af8b 100644 |
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--- a/arch/x86/Makefile |
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+++ b/arch/x86/Makefile |
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-@@ -113,11 +113,48 @@ else |
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+@@ -114,11 +114,48 @@ else |
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# FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu) |
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cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8) |
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cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona) |
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