arch/x86/include/asm/x86_init.h

   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
   7 struct mpc_bus;
   8 struct mpc_cpu;
   9 struct mpc_table;
  10 struct 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  */
  23 struct 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  */
  42 struct 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  */
  55 struct 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  */
  66 struct 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  */
  78 struct 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  */
  87 struct 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  */
 100 struct 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  */
 111 struct 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  */
 122 struct 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  */
 133 struct 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  */
 150 struct 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  * @wallclock_init:             init the wallclock device
 160  * @get_wallclock:              get time from HW clock like RTC etc.
 161  * @set_wallclock:              set time back to HW clock
 162  * @is_untracked_pat_range      exclude from PAT logic
 163  * @nmi_init                    enable NMI on cpus
 164  * @i8042_detect                pre-detect if i8042 controller exists
 165  * @save_sched_clock_state:     save state for sched_clock() on suspend
 166  * @restore_sched_clock_state:  restore state for sched_clock() on resume
 167  */
 168 struct x86_platform_ops {
 169         unsigned long (*calibrate_tsc)(void);
 170         void (*wallclock_init)(void);
 171         unsigned long (*get_wallclock)(void);
 172         int (*set_wallclock)(unsigned long nowtime);
 173         void (*iommu_shutdown)(void);
 174         bool (*is_untracked_pat_range)(u64 start, u64 end);
 175         void (*nmi_init)(void);
 176         unsigned char (*get_nmi_reason)(void);
 177         int (*i8042_detect)(void);
 178         void (*save_sched_clock_state)(void);
 179         void (*restore_sched_clock_state)(void);
 180 };
 181
 182 struct pci_dev;
 183
 184 struct 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
 191 struct 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
 198 extern struct x86_init_ops x86_init;
 199 extern struct x86_cpuinit_ops x86_cpuinit;
 200 extern struct x86_platform_ops x86_platform;
 201 extern struct x86_msi_ops x86_msi;
 202 extern struct x86_io_apic_ops x86_io_apic_ops;
 203 extern void x86_init_noop(void);
 204 extern void x86_init_uint_noop(unsigned int unused);
 205
 206 #endif