root/arch/x86/include/asm/x86_init.h

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INCLUDED FROM


#ifndef _ASM_X86_PLATFORM_H
#define _ASM_X86_PLATFORM_H

#include <asm/pgtable_types.h>
#include <asm/bootparam.h>

struct mpc_bus;
struct mpc_cpu;
struct mpc_table;
struct cpuinfo_x86;

/**
 * struct x86_init_mpparse - platform specific mpparse ops
 * @mpc_record:                 platform specific mpc record accounting
 * @setup_ioapic_ids:           platform specific ioapic id override
 * @mpc_apic_id:                platform specific mpc apic id assignment
 * @smp_read_mpc_oem:           platform specific oem mpc table setup
 * @mpc_oem_pci_bus:            platform specific pci bus setup (default NULL)
 * @mpc_oem_bus_info:           platform specific mpc bus info
 * @find_smp_config:            find the smp configuration
 * @get_smp_config:             get the smp configuration
 */
struct x86_init_mpparse {
        void (*mpc_record)(unsigned int mode);
        void (*setup_ioapic_ids)(void);
        int (*mpc_apic_id)(struct mpc_cpu *m);
        void (*smp_read_mpc_oem)(struct mpc_table *mpc);
        void (*mpc_oem_pci_bus)(struct mpc_bus *m);
        void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
        void (*find_smp_config)(void);
        void (*get_smp_config)(unsigned int early);
};

/**
 * struct x86_init_resources - platform specific resource related ops
 * @probe_roms:                 probe BIOS roms
 * @reserve_resources:          reserve the standard resources for the
 *                              platform
 * @memory_setup:               platform specific memory setup
 *
 */
struct x86_init_resources {
        void (*probe_roms)(void);
        void (*reserve_resources)(void);
        char *(*memory_setup)(void);
};

/**
 * struct x86_init_irqs - platform specific interrupt setup
 * @pre_vector_init:            init code to run before interrupt vectors
 *                              are set up.
 * @intr_init:                  interrupt init code
 * @trap_init:                  platform specific trap setup
 */
struct x86_init_irqs {
        void (*pre_vector_init)(void);
        void (*intr_init)(void);
        void (*trap_init)(void);
};

/**
 * struct x86_init_oem - oem platform specific customizing functions
 * @arch_setup:                 platform specific architecure setup
 * @banner:                     print a platform specific banner
 */
struct x86_init_oem {
        void (*arch_setup)(void);
        void (*banner)(void);
};

/**
 * struct x86_init_paging - platform specific paging functions
 * @pagetable_init:     platform specific paging initialization call to setup
 *                      the kernel pagetables and prepare accessors functions.
 *                      Callback must call paging_init(). Called once after the
 *                      direct mapping for phys memory is available.
 */
struct x86_init_paging {
        void (*pagetable_init)(void);
};

/**
 * struct x86_init_timers - platform specific timer setup
 * @setup_perpcu_clockev:       set up the per cpu clock event device for the
 *                              boot cpu
 * @tsc_pre_init:               platform function called before TSC init
 * @timer_init:                 initialize the platform timer (default PIT/HPET)
 * @wallclock_init:             init the wallclock device
 */
struct x86_init_timers {
        void (*setup_percpu_clockev)(void);
        void (*tsc_pre_init)(void);
        void (*timer_init)(void);
        void (*wallclock_init)(void);
};

/**
 * struct x86_init_iommu - platform specific iommu setup
 * @iommu_init:                 platform specific iommu setup
 */
struct x86_init_iommu {
        int (*iommu_init)(void);
};

/**
 * struct x86_init_pci - platform specific pci init functions
 * @arch_init:                  platform specific pci arch init call
 * @init:                       platform specific pci subsystem init
 * @init_irq:                   platform specific pci irq init
 * @fixup_irqs:                 platform specific pci irq fixup
 */
struct x86_init_pci {
        int (*arch_init)(void);
        int (*init)(void);
        void (*init_irq)(void);
        void (*fixup_irqs)(void);
};

/**
 * struct x86_init_ops - functions for platform specific setup
 *
 */
struct x86_init_ops {
        struct x86_init_resources       resources;
        struct x86_init_mpparse         mpparse;
        struct x86_init_irqs            irqs;
        struct x86_init_oem             oem;
        struct x86_init_paging          paging;
        struct x86_init_timers          timers;
        struct x86_init_iommu           iommu;
        struct x86_init_pci             pci;
};

/**
 * struct x86_cpuinit_ops - platform specific cpu hotplug setups
 * @setup_percpu_clockev:       set up the per cpu clock event device
 * @early_percpu_clock_init:    early init of the per cpu clock event device
 */
struct x86_cpuinit_ops {
        void (*setup_percpu_clockev)(void);
        void (*early_percpu_clock_init)(void);
        void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
};

struct timespec;

/**
 * struct x86_platform_ops - platform specific runtime functions
 * @calibrate_tsc:              calibrate TSC
 * @get_wallclock:              get time from HW clock like RTC etc.
 * @set_wallclock:              set time back to HW clock
 * @is_untracked_pat_range      exclude from PAT logic
 * @nmi_init                    enable NMI on cpus
 * @i8042_detect                pre-detect if i8042 controller exists
 * @save_sched_clock_state:     save state for sched_clock() on suspend
 * @restore_sched_clock_state:  restore state for sched_clock() on resume
 * @apic_post_init:             adjust apic if neeeded
 */
struct x86_platform_ops {
        unsigned long (*calibrate_tsc)(void);
        void (*get_wallclock)(struct timespec *ts);
        int (*set_wallclock)(const struct timespec *ts);
        void (*iommu_shutdown)(void);
        bool (*is_untracked_pat_range)(u64 start, u64 end);
        void (*nmi_init)(void);
        unsigned char (*get_nmi_reason)(void);
        int (*i8042_detect)(void);
        void (*save_sched_clock_state)(void);
        void (*restore_sched_clock_state)(void);
        void (*apic_post_init)(void);
};

struct pci_dev;
struct msi_msg;
struct msi_desc;

struct x86_msi_ops {
        int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
        void (*compose_msi_msg)(struct pci_dev *dev, unsigned int irq,
                                unsigned int dest, struct msi_msg *msg,
                               u8 hpet_id);
        void (*teardown_msi_irq)(unsigned int irq);
        void (*teardown_msi_irqs)(struct pci_dev *dev);
        void (*restore_msi_irqs)(struct pci_dev *dev);
        int  (*setup_hpet_msi)(unsigned int irq, unsigned int id);
        u32 (*msi_mask_irq)(struct msi_desc *desc, u32 mask, u32 flag);
        u32 (*msix_mask_irq)(struct msi_desc *desc, u32 flag);
};

struct IO_APIC_route_entry;
struct io_apic_irq_attr;
struct irq_data;
struct cpumask;

struct x86_io_apic_ops {
        void            (*init)   (void);
        unsigned int    (*read)   (unsigned int apic, unsigned int reg);
        void            (*write)  (unsigned int apic, unsigned int reg, unsigned int value);
        void            (*modify) (unsigned int apic, unsigned int reg, unsigned int value);
        void            (*disable)(void);
        void            (*print_entries)(unsigned int apic, unsigned int nr_entries);
        int             (*set_affinity)(struct irq_data *data,
                                        const struct cpumask *mask,
                                        bool force);
        int             (*setup_entry)(int irq, struct IO_APIC_route_entry *entry,
                                       unsigned int destination, int vector,
                                       struct io_apic_irq_attr *attr);
        void            (*eoi_ioapic_pin)(int apic, int pin, int vector);
};

extern struct x86_init_ops x86_init;
extern struct x86_cpuinit_ops x86_cpuinit;
extern struct x86_platform_ops x86_platform;
extern struct x86_msi_ops x86_msi;
extern struct x86_io_apic_ops x86_io_apic_ops;
extern void x86_init_noop(void);
extern void x86_init_uint_noop(unsigned int unused);

#endif

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