Commit c97b2fc6 authored by Benjamin Gray's avatar Benjamin Gray Committed by Michael Ellerman
Browse files

selftests/powerpc: Move bind_to_cpu() to utils.h 



This function will be useful in the DSCR test patches later in this
series, so promote it to be shared by all powerpc selftests.

Signed-off-by: default avatarBenjamin Gray <bgray@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230406043320.125138-3-bgray@linux.ibm.com
parent 15f0c260

tools/testing/selftests/powerpc/include/utils.h

+1 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ void *find_auxv_entry(int type, char *auxv); 
void *get_auxv_entry(int type);



int pick_online_cpu(void);

int bind_to_cpu(int cpu);



int parse_intmax(const char *buffer, size_t count, intmax_t *result, int base);

int parse_uintmax(const char *buffer, size_t count, uintmax_t *result, int base);

tools/testing/selftests/powerpc/pmu/lib.c

+0 −13
Original line number Diff line number Diff line
@@ -14,19 +14,6 @@ 
#include "utils.h"

#include "lib.h"





int bind_to_cpu(int cpu)

{

	cpu_set_t mask;



	printf("Binding to cpu %d\n", cpu);



	CPU_ZERO(&mask);

	CPU_SET(cpu, &mask);



	return sched_setaffinity(0, sizeof(mask), &mask);

}



#define PARENT_TOKEN	0xAA

#define CHILD_TOKEN	0x55

tools/testing/selftests/powerpc/pmu/lib.h

+0 −1
Original line number Diff line number Diff line
@@ -20,7 +20,6 @@ union pipe { 
	int fds[2];

};



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);

extern int sync_with_child(union pipe read_pipe, union pipe write_pipe);

tools/testing/selftests/powerpc/utils.c

+12 −0
Original line number Diff line number Diff line
@@ -452,6 +452,18 @@ int pick_online_cpu(void) 
	return cpu;

}



int bind_to_cpu(int cpu)

{

	cpu_set_t mask;



	printf("Binding to cpu %d\n", cpu);



	CPU_ZERO(&mask);

	CPU_SET(cpu, &mask);



	return sched_setaffinity(0, sizeof(mask), &mask);

}



bool is_ppc64le(void)

{

	struct utsname uts;