133 lines
3.7 KiB
C
133 lines
3.7 KiB
C
/**
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* \file cpu.h
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* License details are found in the file LICENSE.
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* \brief
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* Declare types and functions to control CPU.
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* \author Taku Shimosawa <shimosawa@is.s.u-tokyo.ac.jp> \par
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* Copyright (C) 2011 - 2012 Taku Shimosawa
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*/
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/*
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* HISTORY
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*/
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#ifndef IHK_CPU_H
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#define IHK_CPU_H
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#include <list.h>
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#include <ihk/context.h>
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void cpu_enable_interrupt(void);
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void cpu_disable_interrupt(void);
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void cpu_halt(void);
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void cpu_safe_halt(void);
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void cpu_restore_interrupt(unsigned long);
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void cpu_pause(void);
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#define barrier() asm volatile("" : : : "memory")
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unsigned long cpu_disable_interrupt_save(void);
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struct ihk_mc_interrupt_handler {
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struct list_head list;
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void (*func)(void *);
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void *priv;
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};
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int ihk_mc_register_interrupt_handler(int vector,
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struct ihk_mc_interrupt_handler *h);
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int ihk_mc_unregister_interrupt_handler(int vector,
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struct ihk_mc_interrupt_handler *h);
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enum ihk_mc_gv_type {
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IHK_GV_IKC = 1,
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IHK_GV_QUERY_FREE_MEM = 2
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};
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int ihk_mc_get_vector(enum ihk_mc_gv_type type);
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int ihk_mc_interrupt_host(int cpu, int vector);
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struct ihk_mc_cpu_info {
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int ncpus;
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int *hw_ids;
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int *nodes;
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int *linux_cpu_ids;
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};
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struct ihk_mc_cpu_info *ihk_mc_get_cpu_info(void);
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void ihk_mc_boot_cpu(int cpuid, unsigned long pc);
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int ihk_mc_get_processor_id(void);
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int ihk_mc_get_hardware_processor_id(void);
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int ihk_mc_get_numa_id(void);
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int ihk_mc_get_nr_cores();
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int ihk_mc_get_core(int id, unsigned long *linux_core_id, unsigned long *apic_id,
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int *numa_id);
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void ihk_mc_delay_us(int us);
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void ihk_mc_set_syscall_handler(long (*handler)(int, ihk_mc_user_context_t *));
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void ihk_mc_init_ap(void);
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void ihk_mc_init_context(ihk_mc_kernel_context_t *new_ctx,
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void *stack_pointer,
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void (*next_function)(void));
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/* returns the 'prev' argument of the call that caused the switch to the context returned. */
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void *ihk_mc_switch_context(ihk_mc_kernel_context_t *old_ctx,
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ihk_mc_kernel_context_t *new_ctx,
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void *prev);
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int ihk_mc_interrupt_cpu(int cpu, int vector);
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void ihk_mc_init_user_process(ihk_mc_kernel_context_t *ctx,
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ihk_mc_user_context_t **puctx,
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void *stack_pointer, unsigned long user_pc,
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unsigned long user_sp);
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void ihk_mc_init_user_tlsbase(ihk_mc_user_context_t *ctx,
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unsigned long tls_base_addr);
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enum ihk_mc_user_context_regtype {
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IHK_UCR_STACK_POINTER = 1,
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IHK_UCR_PROGRAM_COUNTER = 2,
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};
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void ihk_mc_modify_user_context(ihk_mc_user_context_t *uctx,
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enum ihk_mc_user_context_regtype reg,
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unsigned long value);
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void ihk_mc_debug_show_interrupt_context(const void *reg);
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enum ihk_asr_type {
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IHK_ASR_X86_FS,
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IHK_ASR_X86_GS,
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};
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#define IHK_TLB_FLUSH_IRQ_VECTOR_START 68
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#define IHK_TLB_FLUSH_IRQ_VECTOR_SIZE 64
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#define IHK_TLB_FLUSH_IRQ_VECTOR_END (IHK_TLB_FLUSH_IRQ_VECTOR_START + IHK_TLB_FLUSH_IRQ_VECTOR_SIZE)
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int ihk_mc_arch_set_special_register(enum ihk_asr_type, unsigned long value);
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int ihk_mc_arch_get_special_register(enum ihk_asr_type, unsigned long *value);
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extern unsigned int ihk_ikc_irq;
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extern unsigned int ihk_ikc_irq_apicid;
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extern int gettime_local_support;
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void init_tick(void);
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void init_delay(void);
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void sync_tick(void);
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struct pvclock_vsyscall_time_info {
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long contents[64/sizeof(long)];
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};
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extern struct pvclock_vsyscall_time_info *pvti;
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extern int pvti_npages;
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int arch_setup_pvclock(void);
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void arch_start_pvclock(void);
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struct cpu_mapping;
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int arch_get_cpu_mapping(struct cpu_mapping **buf, int *nelemsp);
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#endif
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