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/* 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 */
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