add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/tools/testing/selftests/powerpc/include/utils.h
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@@ -1,6 +1,6 @@
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+/* 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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- * Licensed under GPLv2.
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  */
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 #ifndef _SELFTESTS_POWERPC_UTILS_H
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@@ -11,6 +11,8 @@
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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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@@ -31,6 +33,30 @@
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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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+
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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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+
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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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+
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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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+
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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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@@ -49,6 +75,7 @@
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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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@@ -57,6 +84,15 @@
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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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+
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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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@@ -72,12 +108,41 @@
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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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+
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 #define _str(s) #s
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 #define str(s) _str(s)
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+
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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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+
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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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+
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 #endif /* _SELFTESTS_POWERPC_UTILS_H */