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