1 files changed, 53 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pmc.h b/arch/powerpc/include/asm/pmc.h
new file mode 100644
index 000000000..3c09109e7
--- /dev/null
+++ b/arch/powerpc/include/asm/pmc.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * pmc.h
+ * Copyright (C) 2004  David Gibson, IBM Corporation
+ */
+#ifndef _POWERPC_PMC_H
+#define _POWERPC_PMC_H
+#ifdef __KERNEL__
+
+#include <asm/ptrace.h>
+
+typedef void (*perf_irq_t)(struct pt_regs *);
+extern perf_irq_t perf_irq;
+
+int reserve_pmc_hardware(perf_irq_t new_perf_irq);
+void release_pmc_hardware(void);
+void ppc_enable_pmcs(void);
+
+#ifdef CONFIG_PPC_BOOK3S_64
+#include <asm/lppaca.h>
+#include <asm/firmware.h>
+
+static inline void ppc_set_pmu_inuse(int inuse)
+{
+#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE)
+	if (firmware_has_feature(FW_FEATURE_LPAR)) {
+#ifdef CONFIG_PPC_PSERIES
+		get_lppaca()->pmcregs_in_use = inuse;
+#endif
+	}
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+	get_paca()->pmcregs_in_use = inuse;
+#endif
+#endif
+}
+
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+static inline int ppc_get_pmu_inuse(void)
+{
+	return get_paca()->pmcregs_in_use;
+}
+#endif
+
+extern void power4_enable_pmcs(void);
+
+#else /* CONFIG_PPC64 */
+
+static inline void ppc_set_pmu_inuse(int inuse) { }
+
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* _POWERPC_PMC_H */