kernel/linux.git/tools/testing/selftests/powerpc/benchmarks, branch v6.19.12

selftests/powerpc: Fix argument order to timer_sub()

2025-01-11T05:09:45+00:00

Commit c814bf958926 ("powerpc/selftests: Use timersub() for gettimeofday()"), got the order of arguments to timersub() wrong, leading to a negative time delta being reported, eg: test: gettimeofday tags: git_version:v6.12-rc5-409-gdddf291c3030 time = -3.297781 success: gettimeofday The correct order is minuend, subtrahend, which in this case is end, start. Which gives: test: gettimeofday tags: git_version:v6.12-rc5-409-gdddf291c3030-dirty time = 3.300650 success: gettimeofday Fixes: c814bf958926 ("powerpc/selftests: Use timersub() for gettimeofday()") Signed-off-by: Michael Ellerman Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20241218114347.428108-1-mpe@ellerman.id.au

selftests/powerpc: Allow building without static libc

2024-09-09T06:35:04+00:00

Currently exec-target.c is linked statically with libc, which on Fedora at least requires installing an additional package (glibc-static). If that package is not installed the build fails with: CC exec_target /usr/bin/ld: cannot find -lc: No such file or directory collect2: error: ld returned 1 exit status All exec_target.c does is call sys_exit, which can be done easily enough using inline assembly, and removes the requirement for a static libc to be installed. Suggested-by: Michael Ellerman Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman Link: https://msgid.link/20240812094152.418586-1-maddy@linux.ibm.com

selftests/powerpc: make sub-folders buildable on their own

2024-04-29T13:54:42+00:00

Build breaks when executing make with run_tests for sub-folders under powerpc. This is because, CFLAGS and GIT_VERSION macros are defined in Makefile of toplevel powerpc folder. make: Entering directory '/home/maddy/linux/tools/testing/selftests/powerpc/mm' gcc hugetlb_vs_thp_test.c ../harness.c ../utils.c -o /home/maddy/selftest_output//hugetlb_vs_thp_test hugetlb_vs_thp_test.c:6:10: fatal error: utils.h: No such file or directory 6 | #include "utils.h" | ^~~~~~~~~ compilation terminated. Fix this by adding the flags.mk in each sub-folder Makefile. Also remove the CFLAGS and GIT_VERSION macros from powerpc/ folder Makefile since the same is definied in flags.mk Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman Link: https://msgid.link/20240229093711.581230-3-maddy@linux.ibm.com

selftests/powerpc: Re-order *FLAGS to follow lib.mk

2024-04-29T13:51:16+00:00

In some powerpc/ sub-folder Makefiles, CFLAGS are defined before lib.mk include. Clean it up by re-ordering the flags to follow after the mk include. This is needed to support sub-folders in powerpc/ buildable on its own. Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman Link: https://msgid.link/20240229093711.581230-1-maddy@linux.ibm.com

powerpc/selftests: Use timersub() for gettimeofday()

2022-08-22T03:36:59+00:00

Use timersub() function to simplify the code. Reported-by: Zeal Robot Signed-off-by: ye xingchen Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220816105106.82666-1-ye.xingchen@zte.com.cn

powerpc/selftests: Use gettid() instead of getppid() for null_syscall

2021-06-16T14:09:10+00:00

gettid() is 10% lighter than getppid(), use it for null_syscall selftest. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/0ad62673d3e063f848e7c99d719bb966efd433e8.1622809833.git.christophe.leroy@csgroup.eu

selftests/powerpc: Don't touch VMX/VSX on older CPUs

2020-09-08T12:24:10+00:00

If we're running on a CPU without VMX/VSX then don't touch them. This is fragile, the compiler could spill a VMX/VSX register and break the test anyway. But in practice it seems to work, ie. the test runs to completion on a system without VSX with this change. Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200819015727.1977134-8-mpe@ellerman.id.au

selftests/powerpc: Fix CPU affinity for child process

2020-07-29T12:30:34+00:00

On systems with large number of cpus, test fails trying to set affinity by calling sched_setaffinity() with smaller size for affinity mask. This patch fixes it by making sure that the size of allocated affinity mask is dependent on the number of CPUs as reported by get_nprocs(). Fixes: 00b7ec5c9cf3 ("selftests/powerpc: Import Anton's context_switch2 benchmark") Reported-by: Shirisha Ganta Signed-off-by: Sandipan Das Signed-off-by: Harish Reviewed-by: Kamalesh Babulal Reviewed-by: Satheesh Rajendran Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200609081423.529664-1-harish@linux.ibm.com

Merge tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2020-04-05T18:12:59+00:00

Pull powerpc updates from Michael Ellerman: "Slightly late as I had to rebase mid-week to insert a bug fix: - A large series from Nick for 64-bit to further rework our exception vectors, and rewrite portions of the syscall entry/exit and interrupt return in C. The result is much easier to follow code that is also faster in general. - Cleanup of our ptrace code to split various parts out that had become badly intertwined with #ifdefs over the years. - Changes to our NUMA setup under the PowerVM hypervisor which should hopefully avoid non-sensical topologies which can lead to warnings from the workqueue code and other problems. - MAINTAINERS updates to remove some of our old orphan entries and update the status of others. - Quite a few other small changes and fixes all over the map. Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas, Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman, Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara, Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor, Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat, Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff, Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel Datwyler, Vaibhav Jain, YueHaibing" * tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits) powerpc: Make setjmp/longjmp signature standard powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type powerpc: Suppress .eh_frame generation powerpc: Drop -fno-dwarf2-cfi-asm powerpc/32: drop unused ISA_DMA_THRESHOLD powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces selftests/powerpc: Fix try-run when source tree is not writable powerpc/vmlinux.lds: Explicitly retain .gnu.hash powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c powerpc/ptrace: create ppc_gethwdinfo() powerpc/ptrace: create ptrace_get_debugreg() powerpc/ptrace: split out ADV_DEBUG_REGS related functions. powerpc/ptrace: move register viewing functions out of ptrace.c powerpc/ptrace: split out TRANSACTIONAL_MEM related functions. powerpc/ptrace: split out SPE related functions. powerpc/ptrace: split out ALTIVEC related functions. powerpc/ptrace: split out VSX related functions. powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64 powerpc/ptrace: remove unused header includes ...

.gitignore: add SPDX License Identifier

2020-03-25T10:50:48+00:00

Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman