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/*
 *  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>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation;
 */

#ifndef _ASM_ACPI_H
#define _ASM_ACPI_H

#include <linux/efi.h>
#include <linux/memblock.h>
#include <linux/psci.h>

#include <asm/cputype.h>
#include <asm/io.h>
#include <asm/smp_plat.h>
#include <asm/tlbflush.h>

/* Macros for consistency checks of the GICC subtable of MADT */
#define ACPI_MADT_GICC_LENGTH	\
	(acpi_gbl_FADT.header.revision < 6 ? 76 : 80)

#define BAD_MADT_GICC_ENTRY(entry, end)					\
	(!(entry) || (entry)->header.length != ACPI_MADT_GICC_LENGTH ||	\
	(unsigned long)(entry) + ACPI_MADT_GICC_LENGTH > (end))

/* Basic configuration for ACPI */
#ifdef	CONFIG_ACPI
pgprot_t __acpi_get_mem_attribute(phys_addr_t addr);

/* ACPI table mapping after acpi_permanent_mmap is set */
static inline void __iomem *acpi_os_ioremap(acpi_physical_address phys,
					    acpi_size size)
{
	/* For normal memory we already have a cacheable mapping. */
	if (memblock_is_map_memory(phys))
		return (void __iomem *)__phys_to_virt(phys);

	/*
	 * We should still honor the memory's attribute here because
	 * crash dump kernel possibly excludes some ACPI (reclaim)
	 * regions from memblock list.
	 */
	return __ioremap(phys, size, __acpi_get_mem_attribute(phys));
}
#define acpi_os_ioremap acpi_os_ioremap

typedef u64 phys_cpuid_t;
#define PHYS_CPUID_INVALID INVALID_HWID

#define acpi_strict 1	/* No out-of-spec workarounds on ARM64 */
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 this cpu was already mapped (mapping from CPU hardware
 * ID to CPU logical ID) or not.
 */
#define cpu_physical_id(cpu) cpu_logical_map(cpu)

/*
 * It's used from ACPI core in kdump to boot UP system with SMP kernel,
 * with this check the ACPI core will not override the CPU index
 * obtained from GICC with 0 and not print some error message as well.
 * Since MADT must provide at least one GICC structure for GIC
 * initialization, CPU will be always available in MADT on ARM64.
 */
static inline bool acpi_has_cpu_in_madt(void)
{
	return true;
}

struct acpi_madt_generic_interrupt *acpi_cpu_get_madt_gicc(int cpu);
static inline u32 get_acpi_id_for_cpu(unsigned int cpu)
{
	return	acpi_cpu_get_madt_gicc(cpu)->uid;
}

static inline void arch_fix_phys_package_id(int num, u32 slot) { }
void __init acpi_init_cpus(void);

#else
static inline void acpi_init_cpus(void) { }
#endif /* CONFIG_ACPI */

#ifdef CONFIG_ARM64_ACPI_PARKING_PROTOCOL
bool acpi_parking_protocol_valid(int cpu);
void __init
acpi_set_mailbox_entry(int cpu, struct acpi_madt_generic_interrupt *processor);
#else
static inline bool acpi_parking_protocol_valid(int cpu) { return false; }
static inline void
acpi_set_mailbox_entry(int cpu, struct acpi_madt_generic_interrupt *processor)
{}
#endif

static inline const char *acpi_get_enable_method(int cpu)
{
	if (acpi_psci_present())
		return "psci";

	if (acpi_parking_protocol_valid(cpu))
		return "parking-protocol";

	return NULL;
}

#ifdef	CONFIG_ACPI_APEI
/*
 * acpi_disable_cmcff is used in drivers/acpi/apei/hest.c for disabling
 * IA-32 Architecture Corrected Machine Check (CMC) Firmware-First mode
 * with a kernel command line parameter "acpi=nocmcoff". But we don't
 * have this IA-32 specific feature on ARM64, this definition is only
 * for compatibility.
 */
#define acpi_disable_cmcff 1
static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
{
	return __acpi_get_mem_attribute(addr);
}
#endif /* CONFIG_ACPI_APEI */

#ifdef CONFIG_ACPI_NUMA
int arm64_acpi_numa_init(void);
int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
#else
static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
#endif /* CONFIG_ACPI_NUMA */

#define ACPI_TABLE_UPGRADE_MAX_PHYS MEMBLOCK_ALLOC_ACCESSIBLE

#endif /*_ASM_ACPI_H*/

Filemanager

Name Type Size Permission Actions
xen Folder 0755
Kbuild File 703 B 0644
acenv.h File 541 B 0644
acpi.h File 4.34 KB 0644
alternative.h File 7.63 KB 0644
arch_gicv3.h File 3.44 KB 0644
arch_timer.h File 4.87 KB 0644
arm-cci.h File 794 B 0644
asm-bug.h File 1.45 KB 0644
asm-offsets.h File 35 B 0644
asm-uaccess.h File 2.09 KB 0644
assembler.h File 13.51 KB 0644
atomic.h File 8.35 KB 0644
atomic_ll_sc.h File 10.62 KB 0644
atomic_lse.h File 14.82 KB 0644
barrier.h File 3.78 KB 0644
bitops.h File 1.9 KB 0644
bitrev.h File 452 B 0644
boot.h File 384 B 0644
brk-imm.h File 706 B 0644
bug.h File 1.09 KB 0644
cache.h File 2.23 KB 0644
cacheflush.h File 4.87 KB 0644
checksum.h File 1.35 KB 0644
clocksource.h File 192 B 0644
cmpxchg.h File 7.98 KB 0644
compat.h File 7.15 KB 0644
compiler.h File 1.18 KB 0644
cpu.h File 1.84 KB 0644
cpu_ops.h File 2.73 KB 0644
cpucaps.h File 1.83 KB 0644
cpufeature.h File 19.14 KB 0644
cpuidle.h File 401 B 0644
cputype.h File 8.1 KB 0644
current.h File 517 B 0644
daifflags.h File 1.59 KB 0644
dcc.h File 1.36 KB 0644
debug-monitors.h File 3.76 KB 0644
device.h File 886 B 0644
dma-mapping.h File 2.42 KB 0644
dmi.h File 850 B 0644
efi.h File 4.57 KB 0644
elf.h File 5.7 KB 0644
esr.h File 9.02 KB 0644
exception.h File 1.21 KB 0644
exec.h File 868 B 0644
extable.h File 815 B 0644
fb.h File 1000 B 0644
fixmap.h File 2.91 KB 0644
fpsimd.h File 4.21 KB 0644
fpsimdmacros.h File 5.62 KB 0644
ftrace.h File 1.92 KB 0644
futex.h File 3.41 KB 0644
hardirq.h File 2.08 KB 0644
hugetlb.h File 2.71 KB 0644
hw_breakpoint.h File 4.46 KB 0644
hwcap.h File 1.86 KB 0644
hypervisor.h File 144 B 0644
insn.h File 16.03 KB 0644
io.h File 7.72 KB 0644
irq.h File 307 B 0644
irq_work.h File 228 B 0644
irqflags.h File 2.3 KB 0644
jump_label.h File 1.68 KB 0644
kasan.h File 1.16 KB 0644
kernel-pgtable.h File 4.03 KB 0644
kexec.h File 2.42 KB 0644
kgdb.h File 3.79 KB 0644
kprobes.h File 1.74 KB 0644
kvm_arm.h File 8.38 KB 0644
kvm_asm.h File 4.26 KB 0644
kvm_coproc.h File 2.04 KB 0644
kvm_emulate.h File 10.38 KB 0644
kvm_host.h File 15.73 KB 0644
kvm_hyp.h File 5.79 KB 0644
kvm_mmio.h File 1.3 KB 0644
kvm_mmu.h File 11.72 KB 0644
linkage.h File 114 B 0644
lse.h File 1.26 KB 0644
memblock.h File 720 B 0644
memory.h File 9.32 KB 0644
mmu.h File 2.74 KB 0644
mmu_context.h File 6.35 KB 0644
mmzone.h File 266 B 0644
module.h File 2.8 KB 0644
neon.h File 815 B 0644
numa.h File 1.33 KB 0644
page-def.h File 1.17 KB 0644
page.h File 1.61 KB 0644
paravirt.h File 458 B 0644
pci.h File 878 B 0644
percpu.h File 7.48 KB 0644
perf_event.h File 3.17 KB 0644
pgalloc.h File 3.71 KB 0644
pgtable-hwdef.h File 9.4 KB 0644
pgtable-prot.h File 4.38 KB 0644
pgtable-types.h File 1.84 KB 0644
pgtable.h File 21.55 KB 0644
probes.h File 1022 B 0644
proc-fns.h File 1.21 KB 0644
processor.h File 6.52 KB 0644
ptdump.h File 1.42 KB 0644
ptrace.h File 9 KB 0644
sdei.h File 1.46 KB 0644
seccomp.h File 714 B 0644
sections.h File 1.46 KB 0644
shmparam.h File 965 B 0644
signal32.h File 1.45 KB 0644
simd.h File 1.39 KB 0644
smp.h File 4.23 KB 0644
smp_plat.h File 1.43 KB 0644
sparsemem.h File 771 B 0644
spinlock.h File 3.33 KB 0644
spinlock_types.h File 1.06 KB 0644
stack_pointer.h File 247 B 0644
stackprotector.h File 1.11 KB 0644
stacktrace.h File 2.53 KB 0644
stage2_pgtable-nopmd.h File 1.3 KB 0644
stage2_pgtable-nopud.h File 1.24 KB 0644
stage2_pgtable.h File 4.89 KB 0644
stat.h File 1.43 KB 0644
string.h File 2.33 KB 0644
suspend.h File 1.65 KB 0644
sync_bitops.h File 1.11 KB 0644
syscall.h File 2.87 KB 0644
sysreg.h File 25.1 KB 0644
system_misc.h File 1.86 KB 0644
thread_info.h File 3.93 KB 0644
timex.h File 883 B 0644
tlb.h File 2.22 KB 0644
tlbflush.h File 5.38 KB 0644
topology.h File 1.29 KB 0644
traps.h File 3.33 KB 0644
uaccess.h File 12.01 KB 0644
unistd.h File 1.6 KB 0644
unistd32.h File 27.53 KB 0644
uprobes.h File 777 B 0644
vdso.h File 1.09 KB 0644
vdso_datapage.h File 1.53 KB 0644
vectors.h File 1.75 KB 0644
virt.h File 3 KB 0644
vmap_stack.h File 769 B 0644
word-at-a-time.h File 2.22 KB 0644