arch/x86/include/asm/x86_init.h

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