3752e453f6
The Power8 Performance Monitor Unit (PMU) has a new feature called Event Based Branches (EBB). This commit adds tests of the kernel API for using EBBs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
42 lines
955 B
C
42 lines
955 B
C
/*
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* Copyright 2014, Michael Ellerman, IBM Corp.
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* Licensed under GPLv2.
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*/
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#ifndef __SELFTESTS_POWERPC_PMU_LIB_H
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#define __SELFTESTS_POWERPC_PMU_LIB_H
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h>
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union pipe {
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struct {
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int read_fd;
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int write_fd;
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};
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int fds[2];
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};
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extern int pick_online_cpu(void);
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extern int bind_to_cpu(int cpu);
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extern int kill_child_and_wait(pid_t child_pid);
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extern int wait_for_child(pid_t child_pid);
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extern int sync_with_child(union pipe read_pipe, union pipe write_pipe);
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extern int wait_for_parent(union pipe read_pipe);
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extern int notify_parent(union pipe write_pipe);
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extern int notify_parent_of_error(union pipe write_pipe);
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extern pid_t eat_cpu(int (test_function)(void));
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extern bool require_paranoia_below(int level);
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struct addr_range {
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uint64_t first, last;
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};
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extern struct addr_range libc, vdso;
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int parse_proc_maps(void);
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#endif /* __SELFTESTS_POWERPC_PMU_LIB_H */
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