linux/arch/x86/include/asm/x86_init.h
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   1#ifndef _ASM_X86_PLATFORM_H
   2#define _ASM_X86_PLATFORM_H
   3
   4#include <asm/pgtable_types.h>
   5#include <asm/bootparam.h>
   6
   7struct mpc_bus;
   8struct mpc_cpu;
   9struct mpc_table;
  10struct cpuinfo_x86;
  11
  12/**
  13 * struct x86_init_mpparse - platform specific mpparse ops
  14 * @mpc_record:                 platform specific mpc record accounting
  15 * @setup_ioapic_ids:           platform specific ioapic id override
  16 * @mpc_apic_id:                platform specific mpc apic id assignment
  17 * @smp_read_mpc_oem:           platform specific oem mpc table setup
  18 * @mpc_oem_pci_bus:            platform specific pci bus setup (default NULL)
  19 * @mpc_oem_bus_info:           platform specific mpc bus info
  20 * @find_smp_config:            find the smp configuration
  21 * @get_smp_config:             get the smp configuration
  22 */
  23struct x86_init_mpparse {
  24        void (*mpc_record)(unsigned int mode);
  25        void (*setup_ioapic_ids)(void);
  26        int (*mpc_apic_id)(struct mpc_cpu *m);
  27        void (*smp_read_mpc_oem)(struct mpc_table *mpc);
  28        void (*mpc_oem_pci_bus)(struct mpc_bus *m);
  29        void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
  30        void (*find_smp_config)(void);
  31        void (*get_smp_config)(unsigned int early);
  32};
  33
  34/**
  35 * struct x86_init_resources - platform specific resource related ops
  36 * @probe_roms:                 probe BIOS roms
  37 * @reserve_resources:          reserve the standard resources for the
  38 *                              platform
  39 * @memory_setup:               platform specific memory setup
  40 *
  41 */
  42struct x86_init_resources {
  43        void (*probe_roms)(void);
  44        void (*reserve_resources)(void);
  45        char *(*memory_setup)(void);
  46};
  47
  48/**
  49 * struct x86_init_irqs - platform specific interrupt setup
  50 * @pre_vector_init:            init code to run before interrupt vectors
  51 *                              are set up.
  52 * @intr_init:                  interrupt init code
  53 * @trap_init:                  platform specific trap setup
  54 */
  55struct x86_init_irqs {
  56        void (*pre_vector_init)(void);
  57        void (*intr_init)(void);
  58        void (*trap_init)(void);
  59};
  60
  61/**
  62 * struct x86_init_oem - oem platform specific customizing functions
  63 * @arch_setup:                 platform specific architecure setup
  64 * @banner:                     print a platform specific banner
  65 */
  66struct x86_init_oem {
  67        void (*arch_setup)(void);
  68        void (*banner)(void);
  69};
  70
  71/**
  72 * struct x86_init_mapping - platform specific initial kernel pagetable setup
  73 * @pagetable_reserve:  reserve a range of addresses for kernel pagetable usage
  74 *
  75 * For more details on the purpose of this hook, look in
  76 * init_memory_mapping and the commit that added it.
  77 */
  78struct x86_init_mapping {
  79        void (*pagetable_reserve)(u64 start, u64 end);
  80};
  81
  82/**
  83 * struct x86_init_paging - platform specific paging functions
  84 * @pagetable_setup_start:      platform specific pre paging_init() call
  85 * @pagetable_setup_done:       platform specific post paging_init() call
  86 */
  87struct x86_init_paging {
  88        void (*pagetable_setup_start)(pgd_t *base);
  89        void (*pagetable_setup_done)(pgd_t *base);
  90};
  91
  92/**
  93 * struct x86_init_timers - platform specific timer setup
  94 * @setup_perpcu_clockev:       set up the per cpu clock event device for the
  95 *                              boot cpu
  96 * @tsc_pre_init:               platform function called before TSC init
  97 * @timer_init:                 initialize the platform timer (default PIT/HPET)
  98 * @wallclock_init:             init the wallclock device
  99 */
 100struct x86_init_timers {
 101        void (*setup_percpu_clockev)(void);
 102        void (*tsc_pre_init)(void);
 103        void (*timer_init)(void);
 104        void (*wallclock_init)(void);
 105};
 106
 107/**
 108 * struct x86_init_iommu - platform specific iommu setup
 109 * @iommu_init:                 platform specific iommu setup
 110 */
 111struct x86_init_iommu {
 112        int (*iommu_init)(void);
 113};
 114
 115/**
 116 * struct x86_init_pci - platform specific pci init functions
 117 * @arch_init:                  platform specific pci arch init call
 118 * @init:                       platform specific pci subsystem init
 119 * @init_irq:                   platform specific pci irq init
 120 * @fixup_irqs:                 platform specific pci irq fixup
 121 */
 122struct x86_init_pci {
 123        int (*arch_init)(void);
 124        int (*init)(void);
 125        void (*init_irq)(void);
 126        void (*fixup_irqs)(void);
 127};
 128
 129/**
 130 * struct x86_init_ops - functions for platform specific setup
 131 *
 132 */
 133struct x86_init_ops {
 134        struct x86_init_resources       resources;
 135        struct x86_init_mpparse         mpparse;
 136        struct x86_init_irqs            irqs;
 137        struct x86_init_oem             oem;
 138        struct x86_init_mapping         mapping;
 139        struct x86_init_paging          paging;
 140        struct x86_init_timers          timers;
 141        struct x86_init_iommu           iommu;
 142        struct x86_init_pci             pci;
 143};
 144
 145/**
 146 * struct x86_cpuinit_ops - platform specific cpu hotplug setups
 147 * @setup_percpu_clockev:       set up the per cpu clock event device
 148 * @early_percpu_clock_init:    early init of the per cpu clock event device
 149 */
 150struct x86_cpuinit_ops {
 151        void (*setup_percpu_clockev)(void);
 152        void (*early_percpu_clock_init)(void);
 153        void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
 154};
 155
 156/**
 157 * struct x86_platform_ops - platform specific runtime functions
 158 * @calibrate_tsc:              calibrate TSC
 159 * @get_wallclock:              get time from HW clock like RTC etc.
 160 * @set_wallclock:              set time back to HW clock
 161 * @is_untracked_pat_range      exclude from PAT logic
 162 * @nmi_init                    enable NMI on cpus
 163 * @i8042_detect                pre-detect if i8042 controller exists
 164 * @save_sched_clock_state:     save state for sched_clock() on suspend
 165 * @restore_sched_clock_state:  restore state for sched_clock() on resume
 166 * @apic_post_init:             adjust apic if neeeded
 167 */
 168struct x86_platform_ops {
 169        unsigned long (*calibrate_tsc)(void);
 170        unsigned long (*get_wallclock)(void);
 171        int (*set_wallclock)(unsigned long nowtime);
 172        void (*iommu_shutdown)(void);
 173        bool (*is_untracked_pat_range)(u64 start, u64 end);
 174        void (*nmi_init)(void);
 175        unsigned char (*get_nmi_reason)(void);
 176        int (*i8042_detect)(void);
 177        void (*save_sched_clock_state)(void);
 178        void (*restore_sched_clock_state)(void);
 179        void (*apic_post_init)(void);
 180};
 181
 182struct pci_dev;
 183
 184struct x86_msi_ops {
 185        int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
 186        void (*teardown_msi_irq)(unsigned int irq);
 187        void (*teardown_msi_irqs)(struct pci_dev *dev);
 188        void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
 189};
 190
 191struct x86_io_apic_ops {
 192        void            (*init)  (void);
 193        unsigned int    (*read)  (unsigned int apic, unsigned int reg);
 194        void            (*write) (unsigned int apic, unsigned int reg, unsigned int value);
 195        void            (*modify)(unsigned int apic, unsigned int reg, unsigned int value);
 196};
 197
 198extern struct x86_init_ops x86_init;
 199extern struct x86_cpuinit_ops x86_cpuinit;
 200extern struct x86_platform_ops x86_platform;
 201extern struct x86_msi_ops x86_msi;
 202extern struct x86_io_apic_ops x86_io_apic_ops;
 203extern void x86_init_noop(void);
 204extern void x86_init_uint_noop(unsigned int unused);
 205
 206#endif
 207