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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2013-2014, Linaro Ltd.
* Author: Al Stone <al.stone@linaro.org>
* Author: Graeme Gregory <graeme.gregory@linaro.org>
* Author: Hanjun Guo <hanjun.guo@linaro.org>
*
* Copyright (C) 2021-2023, Ventana Micro Systems Inc.
* Author: Sunil V L <sunilvl@ventanamicro.com>
*/
#ifndef _ASM_ACPI_H
#define _ASM_ACPI_H
/* Basic configuration for ACPI */
#ifdef CONFIG_ACPI
typedef u64 phys_cpuid_t;
#define PHYS_CPUID_INVALID INVALID_HARTID
/* ACPI table mapping after acpi_permanent_mmap is set */
void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
#define acpi_os_ioremap acpi_os_ioremap
#define acpi_strict 1 /* No out-of-spec workarounds on RISC-V */
extern int acpi_disabled;
extern int acpi_noirq;
extern int acpi_pci_disabled;
static inline void disable_acpi(void)
{
acpi_disabled = 1;
acpi_pci_disabled = 1;
acpi_noirq = 1;
}
static inline void enable_acpi(void)
{
acpi_disabled = 0;
acpi_pci_disabled = 0;
acpi_noirq = 0;
}
/*
* The ACPI processor driver for ACPI core code needs this macro
* to find out whether this cpu was already mapped (mapping from CPU hardware
* ID to CPU logical ID) or not.
*/
#define cpu_physical_id(cpu) cpuid_to_hartid_map(cpu)
/*
* Since MADT must provide at least one RINTC structure, the
* CPU will be always available in MADT on RISC-V.
*/
static inline bool acpi_has_cpu_in_madt(void)
{
return true;
}
static inline void arch_fix_phys_package_id(int num, u32 slot) { }
void acpi_init_rintc_map(void);
struct acpi_madt_rintc *acpi_cpu_get_madt_rintc(int cpu);
static inline u32 get_acpi_id_for_cpu(int cpu)
{
return acpi_cpu_get_madt_rintc(cpu)->uid;
}
int acpi_get_riscv_isa(struct acpi_table_header *table,
unsigned int cpu, const char **isa);
void acpi_get_cbo_block_size(struct acpi_table_header *table, u32 *cbom_size,
u32 *cboz_size, u32 *cbop_size);
#else
static inline void acpi_init_rintc_map(void) { }
static inline struct acpi_madt_rintc *acpi_cpu_get_madt_rintc(int cpu)
{
return NULL;
}
static inline int acpi_get_riscv_isa(struct acpi_table_header *table,
unsigned int cpu, const char **isa)
{
return -EINVAL;
}
static inline void acpi_get_cbo_block_size(struct acpi_table_header *table,
u32 *cbom_size, u32 *cboz_size,
u32 *cbop_size) { }
#endif /* CONFIG_ACPI */
#ifdef CONFIG_ACPI_NUMA
void acpi_map_cpus_to_nodes(void);
#else
static inline void acpi_map_cpus_to_nodes(void) { }
#endif /* CONFIG_ACPI_NUMA */
#endif /*_ASM_ACPI_H*/
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