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148 lines
3.4 KiB
148 lines
3.4 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright 2013, Michael Ellerman, IBM Corp. |
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*/ |
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#ifndef _SELFTESTS_POWERPC_UTILS_H |
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#define _SELFTESTS_POWERPC_UTILS_H |
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#define __cacheline_aligned __attribute__((aligned(128))) |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <linux/auxvec.h> |
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#include <linux/perf_event.h> |
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#include <asm/cputable.h> |
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#include "reg.h" |
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/* Avoid headaches with PRI?64 - just use %ll? always */ |
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typedef unsigned long long u64; |
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typedef signed long long s64; |
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/* Just for familiarity */ |
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typedef uint32_t u32; |
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typedef uint16_t u16; |
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typedef uint8_t u8; |
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void test_harness_set_timeout(uint64_t time); |
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int test_harness(int (test_function)(void), char *name); |
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int read_auxv(char *buf, ssize_t buf_size); |
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void *find_auxv_entry(int type, char *auxv); |
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void *get_auxv_entry(int type); |
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int pick_online_cpu(void); |
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int read_debugfs_file(char *debugfs_file, int *result); |
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int write_debugfs_file(char *debugfs_file, int result); |
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int read_sysfs_file(char *debugfs_file, char *result, size_t result_size); |
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int perf_event_open_counter(unsigned int type, |
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unsigned long config, int group_fd); |
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int perf_event_enable(int fd); |
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int perf_event_disable(int fd); |
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int perf_event_reset(int fd); |
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struct perf_event_read { |
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__u64 nr; |
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__u64 l1d_misses; |
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}; |
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#if !defined(__GLIBC_PREREQ) || !__GLIBC_PREREQ(2, 30) |
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#include <unistd.h> |
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#include <sys/syscall.h> |
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static inline pid_t gettid(void) |
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{ |
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return syscall(SYS_gettid); |
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} |
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#endif |
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static inline bool have_hwcap(unsigned long ftr) |
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{ |
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return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr; |
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} |
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#ifdef AT_HWCAP2 |
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static inline bool have_hwcap2(unsigned long ftr2) |
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{ |
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return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2; |
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} |
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#else |
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static inline bool have_hwcap2(unsigned long ftr2) |
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{ |
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return false; |
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} |
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#endif |
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bool is_ppc64le(void); |
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int using_hash_mmu(bool *using_hash); |
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/* Yes, this is evil */ |
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#define FAIL_IF(x) \ |
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do { \ |
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if ((x)) { \ |
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fprintf(stderr, \ |
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"[FAIL] Test FAILED on line %d\n", __LINE__); \ |
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return 1; \ |
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} \ |
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} while (0) |
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#define FAIL_IF_EXIT(x) \ |
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do { \ |
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if ((x)) { \ |
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fprintf(stderr, \ |
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"[FAIL] Test FAILED on line %d\n", __LINE__); \ |
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_exit(1); \ |
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} \ |
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} while (0) |
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/* The test harness uses this, yes it's gross */ |
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#define MAGIC_SKIP_RETURN_VALUE 99 |
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#define SKIP_IF(x) \ |
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do { \ |
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if ((x)) { \ |
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fprintf(stderr, \ |
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"[SKIP] Test skipped on line %d\n", __LINE__); \ |
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return MAGIC_SKIP_RETURN_VALUE; \ |
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} \ |
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} while (0) |
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#define SKIP_IF_MSG(x, msg) \ |
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do { \ |
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if ((x)) { \ |
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fprintf(stderr, \ |
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"[SKIP] Test skipped on line %d: %s\n", \ |
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__LINE__, msg); \ |
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return MAGIC_SKIP_RETURN_VALUE; \ |
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} \ |
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} while (0) |
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#define _str(s) #s |
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#define str(s) _str(s) |
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#define sigsafe_err(msg) ({ \ |
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ssize_t nbytes __attribute__((unused)); \ |
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nbytes = write(STDERR_FILENO, msg, strlen(msg)); }) |
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/* POWER9 feature */ |
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#ifndef PPC_FEATURE2_ARCH_3_00 |
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#define PPC_FEATURE2_ARCH_3_00 0x00800000 |
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#endif |
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/* POWER10 feature */ |
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#ifndef PPC_FEATURE2_ARCH_3_1 |
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#define PPC_FEATURE2_ARCH_3_1 0x00040000 |
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#endif |
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#if defined(__powerpc64__) |
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#define UCONTEXT_NIA(UC) (UC)->uc_mcontext.gp_regs[PT_NIP] |
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#define UCONTEXT_MSR(UC) (UC)->uc_mcontext.gp_regs[PT_MSR] |
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#elif defined(__powerpc__) |
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#define UCONTEXT_NIA(UC) (UC)->uc_mcontext.uc_regs->gregs[PT_NIP] |
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#define UCONTEXT_MSR(UC) (UC)->uc_mcontext.uc_regs->gregs[PT_MSR] |
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#else |
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#error implement UCONTEXT_NIA |
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#endif |
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#endif /* _SELFTESTS_POWERPC_UTILS_H */
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