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author | Silvino <silvino@bk.ru> | 2021-02-25 23:22:17 +0000 |
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committer | Silvino <silvino@bk.ru> | 2021-02-25 23:22:17 +0000 |
commit | d12b35a47b9a872ecb5e037f1c2b02e1ea8927fb (patch) | |
tree | 8fdac6dfc8cabb9f85a2db3a3bd628cfe44438cd /core/ports/linux-gnu/cpu_optimizations.patch | |
parent | 0a6b0fc9769daf0932cb207c3285baa31547b489 (diff) | |
parent | a3628fc49db4d88ff3e4067268650710d1da3f6f (diff) | |
download | doc-d12b35a47b9a872ecb5e037f1c2b02e1ea8927fb.tar.gz |
merge openbsd branch into develop
new directory layout
Diffstat (limited to 'core/ports/linux-gnu/cpu_optimizations.patch')
-rw-r--r-- | core/ports/linux-gnu/cpu_optimizations.patch | 533 |
1 files changed, 0 insertions, 533 deletions
diff --git a/core/ports/linux-gnu/cpu_optimizations.patch b/core/ports/linux-gnu/cpu_optimizations.patch deleted file mode 100644 index 5df5066..0000000 --- a/core/ports/linux-gnu/cpu_optimizations.patch +++ /dev/null @@ -1,533 +0,0 @@ -WARNING -This patch works with gcc versions 4.9+ and with kernel version 3.15+ 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) - -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 >=3.15 && <4.13 -gcc version >=4.9 - -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/include/asm/module.h 2016-12-11 14:17:54.000000000 -0500 -+++ b/arch/x86/include/asm/module.h 2017-01-06 20:44:36.602227264 -0500 -@@ -15,6 +15,24 @@ - #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_MATOM - #define MODULE_PROC_FAMILY "ATOM " - #elif defined CONFIG_M686 -@@ -33,6 +51,26 @@ - #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 ---- a/arch/x86/Kconfig.cpu 2016-12-11 14:17:54.000000000 -0500 -+++ b/arch/x86/Kconfig.cpu 2017-01-06 20:46:14.004109597 -0500 -@@ -115,6 +115,7 @@ 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 -@@ -147,9 +148,8 @@ config MPENTIUM4 - -Paxville - -Dempsey - -- - 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 -@@ -157,7 +157,7 @@ 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 -@@ -165,12 +165,83 @@ 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. |