diff options
author | Michael Ellerman <mpe@ellerman.id.au> | 2015-12-16 10:59:31 +0300 |
---|---|---|
committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-12-17 02:46:41 +0300 |
commit | d1301afd71bd38b1610b391e50debf766faa84be (patch) | |
tree | ec86ca9e28aa61b7bd145538fe6e1230a0cd63d3 /tools | |
parent | 00b912b0c88e690b1662067497182454357b18b0 (diff) | |
download | linux-d1301afd71bd38b1610b391e50debf766faa84be.tar.xz |
selftests/powerpc: Move pick_online_cpu() up into utils.c
We want to use this in another test, so make it available at the top of
the powerpc selftests tree.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/testing/selftests/powerpc/pmu/Makefile | 2 | ||||
-rw-r--r-- | tools/testing/selftests/powerpc/pmu/lib.c | 26 | ||||
-rw-r--r-- | tools/testing/selftests/powerpc/pmu/lib.h | 1 | ||||
-rw-r--r-- | tools/testing/selftests/powerpc/utils.c | 29 | ||||
-rw-r--r-- | tools/testing/selftests/powerpc/utils.h | 1 |
5 files changed, 31 insertions, 28 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile index 50326cbb372d..ac41a7177f2e 100644 --- a/tools/testing/selftests/powerpc/pmu/Makefile +++ b/tools/testing/selftests/powerpc/pmu/Makefile @@ -2,7 +2,7 @@ noarg: $(MAKE) -C ../ TEST_PROGS := count_instructions l3_bank_test per_event_excludes -EXTRA_SOURCES := ../harness.c event.c lib.c +EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c all: $(TEST_PROGS) ebb diff --git a/tools/testing/selftests/powerpc/pmu/lib.c b/tools/testing/selftests/powerpc/pmu/lib.c index a07104c2afe6..a361ad3334ce 100644 --- a/tools/testing/selftests/powerpc/pmu/lib.c +++ b/tools/testing/selftests/powerpc/pmu/lib.c @@ -15,32 +15,6 @@ #include "lib.h" -int pick_online_cpu(void) -{ - cpu_set_t mask; - int cpu; - - CPU_ZERO(&mask); - - if (sched_getaffinity(0, sizeof(mask), &mask)) { - perror("sched_getaffinity"); - return -1; - } - - /* We prefer a primary thread, but skip 0 */ - for (cpu = 8; cpu < CPU_SETSIZE; cpu += 8) - if (CPU_ISSET(cpu, &mask)) - return cpu; - - /* Search for anything, but in reverse */ - for (cpu = CPU_SETSIZE - 1; cpu >= 0; cpu--) - if (CPU_ISSET(cpu, &mask)) - return cpu; - - printf("No cpus in affinity mask?!\n"); - return -1; -} - int bind_to_cpu(int cpu) { cpu_set_t mask; diff --git a/tools/testing/selftests/powerpc/pmu/lib.h b/tools/testing/selftests/powerpc/pmu/lib.h index ca5d72ae3be6..0213af4ff332 100644 --- a/tools/testing/selftests/powerpc/pmu/lib.h +++ b/tools/testing/selftests/powerpc/pmu/lib.h @@ -19,7 +19,6 @@ union pipe { int fds[2]; }; -extern int pick_online_cpu(void); extern int bind_to_cpu(int cpu); extern int kill_child_and_wait(pid_t child_pid); extern int wait_for_child(pid_t child_pid); diff --git a/tools/testing/selftests/powerpc/utils.c b/tools/testing/selftests/powerpc/utils.c index 536113add380..dcf74184bfd0 100644 --- a/tools/testing/selftests/powerpc/utils.c +++ b/tools/testing/selftests/powerpc/utils.c @@ -3,10 +3,13 @@ * Licensed under GPLv2. */ +#define _GNU_SOURCE /* For CPU_ZERO etc. */ + #include <elf.h> #include <errno.h> #include <fcntl.h> #include <link.h> +#include <sched.h> #include <stdio.h> #include <sys/stat.h> #include <sys/types.h> @@ -56,3 +59,29 @@ out: close(fd); return result; } + +int pick_online_cpu(void) +{ + cpu_set_t mask; + int cpu; + + CPU_ZERO(&mask); + + if (sched_getaffinity(0, sizeof(mask), &mask)) { + perror("sched_getaffinity"); + return -1; + } + + /* We prefer a primary thread, but skip 0 */ + for (cpu = 8; cpu < CPU_SETSIZE; cpu += 8) + if (CPU_ISSET(cpu, &mask)) + return cpu; + + /* Search for anything, but in reverse */ + for (cpu = CPU_SETSIZE - 1; cpu >= 0; cpu--) + if (CPU_ISSET(cpu, &mask)) + return cpu; + + printf("No cpus in affinity mask?!\n"); + return -1; +} diff --git a/tools/testing/selftests/powerpc/utils.h b/tools/testing/selftests/powerpc/utils.h index fbf2bf530e50..175ac6ad10dd 100644 --- a/tools/testing/selftests/powerpc/utils.h +++ b/tools/testing/selftests/powerpc/utils.h @@ -22,6 +22,7 @@ typedef uint8_t u8; int test_harness(int (test_function)(void), char *name); extern void *get_auxv_entry(int type); +int pick_online_cpu(void); static inline bool have_hwcap2(unsigned long ftr2) { |