diff options
Diffstat (limited to 'arch/arm64/include/asm/acpi.h')
| -rw-r--r-- | arch/arm64/include/asm/acpi.h | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index bd68e1b7f29f..c07a58b96329 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -9,6 +9,7 @@ #ifndef _ASM_ACPI_H #define _ASM_ACPI_H +#include <linux/cpuidle.h> #include <linux/efi.h> #include <linux/memblock.h> #include <linux/psci.h> @@ -42,6 +43,27 @@ #define ACPI_MADT_GICC_SPE (offsetof(struct acpi_madt_generic_interrupt, \ spe_interrupt) + sizeof(u16)) +#define ACPI_MADT_GICC_TRBE (offsetof(struct acpi_madt_generic_interrupt, \ + trbe_interrupt) + sizeof(u16)) +/* + * Arm® Functional Fixed Hardware Specification Version 1.2. + * Table 2: Arm Architecture context loss flags + */ +#define CPUIDLE_CORE_CTXT BIT(0) /* Core context Lost */ + +static inline unsigned int arch_get_idle_state_flags(u32 arch_flags) +{ + if (arch_flags & CPUIDLE_CORE_CTXT) + return CPUIDLE_FLAG_TIMER_STOP; + + return 0; +} +#define arch_get_idle_state_flags arch_get_idle_state_flags + +#define CPUIDLE_TRACE_CTXT BIT(1) /* Trace context loss */ +#define CPUIDLE_GICR_CTXT BIT(2) /* GICR */ +#define CPUIDLE_GICD_CTXT BIT(3) /* GICD */ + /* Basic configuration for ACPI */ #ifdef CONFIG_ACPI pgprot_t __acpi_get_mem_attribute(phys_addr_t addr); @@ -97,6 +119,18 @@ static inline u32 get_acpi_id_for_cpu(unsigned int cpu) return acpi_cpu_get_madt_gicc(cpu)->uid; } +static inline int get_cpu_for_acpi_id(u32 uid) +{ + int cpu; + + for (cpu = 0; cpu < nr_cpu_ids; cpu++) + if (acpi_cpu_get_madt_gicc(cpu) && + uid == get_acpi_id_for_cpu(cpu)) + return cpu; + + return -EINVAL; +} + static inline void arch_fix_phys_package_id(int num, u32 slot) { } void __init acpi_init_cpus(void); int apei_claim_sea(struct pt_regs *regs); @@ -116,7 +150,7 @@ acpi_set_mailbox_entry(int cpu, struct acpi_madt_generic_interrupt *processor) {} #endif -static inline const char *acpi_get_enable_method(int cpu) +static __always_inline const char *acpi_get_enable_method(int cpu) { if (acpi_psci_present()) return "psci"; |