1 files changed, 47 insertions, 0 deletions
diff --git a/include/linux/arm_mpam.h b/include/linux/arm_mpam.h
new file mode 100644
index 000000000000..4b7f335181e0
--- /dev/null
+++ b/include/linux/arm_mpam.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2025 Arm Ltd. */
+
+#ifndef __LINUX_ARM_MPAM_H
+#define __LINUX_ARM_MPAM_H
+
+#include <linux/acpi.h>
+#include <linux/types.h>
+
+struct mpam_msc;
+
+enum mpam_msc_iface {
+	MPAM_IFACE_MMIO,	/* a real MPAM MSC */
+	MPAM_IFACE_PCC,		/* a fake MPAM MSC */
+};
+
+enum mpam_class_types {
+	MPAM_CLASS_CACHE,	/* Caches, e.g. L2, L3 */
+	MPAM_CLASS_MEMORY,	/* Main memory */
+	MPAM_CLASS_UNKNOWN,	/* Everything else, e.g. SMMU */
+};
+
+#define MPAM_CLASS_ID_DEFAULT	255
+
+#ifdef CONFIG_ACPI_MPAM
+int acpi_mpam_parse_resources(struct mpam_msc *msc,
+			      struct acpi_mpam_msc_node *tbl_msc);
+
+int acpi_mpam_count_msc(void);
+#else
+static inline int acpi_mpam_parse_resources(struct mpam_msc *msc,
+					    struct acpi_mpam_msc_node *tbl_msc)
+{
+	return -EINVAL;
+}
+
+static inline int acpi_mpam_count_msc(void) { return -EINVAL; }
+#endif
+
+static inline int mpam_ris_create(struct mpam_msc *msc, u8 ris_idx,
+				  enum mpam_class_types type, u8 class_id,
+				  int component_id)
+{
+	return -EINVAL;
+}
+
+#endif /* __LINUX_ARM_MPAM_H */