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
  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_mapping - platform specific initial kernel pagetable setup
  72  * @pagetable_reserve:  reserve a range of addresses for kernel pagetable usage
  73  *
  74  * For more details on the purpose of this hook, look in
  75  * init_memory_mapping and the commit that added it.
  76  */
  77 struct x86_init_mapping {
  78         void (*pagetable_reserve)(u64 start, u64 end);
  79 };
  80
  81 /**
  82  * struct x86_init_paging - platform specific paging functions
  83  * @pagetable_setup_start:      platform specific pre paging_init() call
  84  * @pagetable_setup_done:       platform specific post paging_init() call
  85  */
  86 struct x86_init_paging {
  87         void (*pagetable_setup_start)(pgd_t *base);
  88         void (*pagetable_setup_done)(pgd_t *base);
  89 };
  90
  91 /**
  92  * struct x86_init_timers - platform specific timer setup
  93  * @setup_perpcu_clockev:       set up the per cpu clock event device for the
  94  *                              boot cpu
  95  * @tsc_pre_init:               platform function called before TSC init
  96  * @timer_init:                 initialize the platform timer (default PIT/HPET)
  97  * @wallclock_init:             init the wallclock device
  98  */
  99 struct x86_init_timers {
 100         void (*setup_percpu_clockev)(void);
 101         void (*tsc_pre_init)(void);
 102         void (*timer_init)(void);
 103         void (*wallclock_init)(void);
 104 };
 105
 106 /**
 107  * struct x86_init_iommu - platform specific iommu setup
 108  * @iommu_init:                 platform specific iommu setup
 109  */
 110 struct x86_init_iommu {
 111         int (*iommu_init)(void);
 112 };
 113
 114 /**
 115  * struct x86_init_pci - platform specific pci init functions
 116  * @arch_init:                  platform specific pci arch init call
 117  * @init:                       platform specific pci subsystem init
 118  * @init_irq:                   platform specific pci irq init
 119  * @fixup_irqs:                 platform specific pci irq fixup
 120  */
 121 struct x86_init_pci {
 122         int (*arch_init)(void);
 123         int (*init)(void);
 124         void (*init_irq)(void);
 125         void (*fixup_irqs)(void);
 126 };
 127
 128 /**
 129  * struct x86_init_ops - functions for platform specific setup
 130  *
 131  */
 132 struct x86_init_ops {
 133         struct x86_init_resources       resources;
 134         struct x86_init_mpparse         mpparse;
 135         struct x86_init_irqs            irqs;
 136         struct x86_init_oem             oem;
 137         struct x86_init_mapping         mapping;
 138         struct x86_init_paging          paging;
 139         struct x86_init_timers          timers;
 140         struct x86_init_iommu           iommu;
 141         struct x86_init_pci             pci;
 142 };
 143
 144 /**
 145  * struct x86_cpuinit_ops - platform specific cpu hotplug setups
 146  * @setup_percpu_clockev:       set up the per cpu clock event device
 147  */
 148 struct x86_cpuinit_ops {
 149         void (*setup_percpu_clockev)(void);
 150 };
 151
 152 /**
 153  * struct x86_platform_ops - platform specific runtime functions
 154  * @calibrate_tsc:              calibrate TSC
 155  * @get_wallclock:              get time from HW clock like RTC etc.
 156  * @set_wallclock:              set time back to HW clock
 157  * @is_untracked_pat_range      exclude from PAT logic
 158  * @nmi_init                    enable NMI on cpus
 159  * @i8042_detect                pre-detect if i8042 controller exists
 160  */
 161 struct x86_platform_ops {
 162         unsigned long (*calibrate_tsc)(void);
 163         unsigned long (*get_wallclock)(void);
 164         int (*set_wallclock)(unsigned long nowtime);
 165         void (*iommu_shutdown)(void);
 166         bool (*is_untracked_pat_range)(u64 start, u64 end);
 167         void (*nmi_init)(void);
 168         int (*i8042_detect)(void);
 169 };
 170
 171 struct pci_dev;
 172
 173 struct x86_msi_ops {
 174         int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
 175         void (*teardown_msi_irq)(unsigned int irq);
 176         void (*teardown_msi_irqs)(struct pci_dev *dev);
 177 };
 178
 179 extern struct x86_init_ops x86_init;
 180 extern struct x86_cpuinit_ops x86_cpuinit;
 181 extern struct x86_platform_ops x86_platform;
 182 extern struct x86_msi_ops x86_msi;
 183
 184 extern void x86_init_noop(void);
 185 extern void x86_init_uint_noop(unsigned int unused);
 186
 187 #endif