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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/powerpc/include/utils.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/powerpc/include/utils.h')
-rw-r--r-- | tools/testing/selftests/powerpc/include/utils.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h new file mode 100644 index 000000000..b7d188fc8 --- /dev/null +++ b/tools/testing/selftests/powerpc/include/utils.h @@ -0,0 +1,148 @@ +/* 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 <asm/cputable.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); +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); + +struct perf_event_read { + __u64 nr; + __u64 l1d_misses; +}; + +#if !defined(__GLIBC_PREREQ) || !__GLIBC_PREREQ(2, 30) +#include <unistd.h> +#include <sys/syscall.h> + +static inline pid_t gettid(void) +{ + return syscall(SYS_gettid); +} +#endif + +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); +int using_hash_mmu(bool *using_hash); + +/* 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) + +#define FAIL_IF_EXIT(x) \ +do { \ + if ((x)) { \ + fprintf(stderr, \ + "[FAIL] Test FAILED on line %d\n", __LINE__); \ + _exit(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) + +#define sigsafe_err(msg) ({ \ + ssize_t nbytes __attribute__((unused)); \ + nbytes = write(STDERR_FILENO, msg, strlen(msg)); }) + +/* POWER9 feature */ +#ifndef PPC_FEATURE2_ARCH_3_00 +#define PPC_FEATURE2_ARCH_3_00 0x00800000 +#endif + +/* POWER10 feature */ +#ifndef PPC_FEATURE2_ARCH_3_1 +#define PPC_FEATURE2_ARCH_3_1 0x00040000 +#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 */ |