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_paging - platform specific paging functions
  73  * @pagetable_init:     platform specific paging initialization call to setup
  74  *                      the kernel pagetables and prepare accessors functions.
  75  *                      Callback must call paging_init(). Called once after the
  76  *                      direct mapping for phys memory is available.
  77  */
  78 struct x86_init_paging {
  79         void (*pagetable_init)(void);
  80 };
  81
  82 /**
  83  * struct x86_init_timers - platform specific timer setup
  84  * @setup_perpcu_clockev:       set up the per cpu clock event device for the
  85  *                              boot cpu
  86  * @tsc_pre_init:               platform function called before TSC init
  87  * @timer_init:                 initialize the platform timer (default PIT/HPET)
  88  * @wallclock_init:             init the wallclock device
  89  */
  90 struct x86_init_timers {
  91         void (*setup_percpu_clockev)(void);
  92         void (*tsc_pre_init)(void);
  93         void (*timer_init)(void);
  94         void (*wallclock_init)(void);
  95 };
  96
  97 /**
  98  * struct x86_init_iommu - platform specific iommu setup
  99  * @iommu_init:                 platform specific iommu setup
 100  */
 101 struct x86_init_iommu {
 102         int (*iommu_init)(void);
 103 };
 104
 105 /**
 106  * struct x86_init_pci - platform specific pci init functions
 107  * @arch_init:                  platform specific pci arch init call
 108  * @init:                       platform specific pci subsystem init
 109  * @init_irq:                   platform specific pci irq init
 110  * @fixup_irqs:                 platform specific pci irq fixup
 111  */
 112 struct x86_init_pci {
 113         int (*arch_init)(void);
 114         int (*init)(void);
 115         void (*init_irq)(void);
 116         void (*fixup_irqs)(void);
 117 };
 118
 119 /**
 120  * struct x86_init_ops - functions for platform specific setup
 121  *
 122  */
 123 struct x86_init_ops {
 124         struct x86_init_resources       resources;
 125         struct x86_init_mpparse         mpparse;
 126         struct x86_init_irqs            irqs;
 127         struct x86_init_oem             oem;
 128         struct x86_init_paging          paging;
 129         struct x86_init_timers          timers;
 130         struct x86_init_iommu           iommu;
 131         struct x86_init_pci             pci;
 132 };
 133
 134 /**
 135  * struct x86_cpuinit_ops - platform specific cpu hotplug setups
 136  * @setup_percpu_clockev:       set up the per cpu clock event device
 137  * @early_percpu_clock_init:    early init of the per cpu clock event device
 138  */
 139 struct x86_cpuinit_ops {
 140         void (*setup_percpu_clockev)(void);
 141         void (*early_percpu_clock_init)(void);
 142         void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
 143 };
 144
 145 struct timespec;
 146
 147 /**
 148  * struct x86_platform_ops - platform specific runtime functions
 149  * @calibrate_tsc:              calibrate TSC
 150  * @get_wallclock:              get time from HW clock like RTC etc.
 151  * @set_wallclock:              set time back to HW clock
 152  * @is_untracked_pat_range      exclude from PAT logic
 153  * @nmi_init                    enable NMI on cpus
 154  * @i8042_detect                pre-detect if i8042 controller exists
 155  * @save_sched_clock_state:     save state for sched_clock() on suspend
 156  * @restore_sched_clock_state:  restore state for sched_clock() on resume
 157  * @apic_post_init:             adjust apic if neeeded
 158  */
 159 struct x86_platform_ops {
 160         unsigned long (*calibrate_tsc)(void);
 161         void (*get_wallclock)(struct timespec *ts);
 162         int (*set_wallclock)(const struct timespec *ts);
 163         void (*iommu_shutdown)(void);
 164         bool (*is_untracked_pat_range)(u64 start, u64 end);
 165         void (*nmi_init)(void);
 166         unsigned char (*get_nmi_reason)(void);
 167         int (*i8042_detect)(void);
 168         void (*save_sched_clock_state)(void);
 169         void (*restore_sched_clock_state)(void);
 170         void (*apic_post_init)(void);
 171 };
 172
 173 struct pci_dev;
 174 struct msi_msg;
 175
 176 struct x86_msi_ops {
 177         int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
 178         void (*compose_msi_msg)(struct pci_dev *dev, unsigned int irq,
 179                                 unsigned int dest, struct msi_msg *msg,
 180                                u8 hpet_id);
 181         void (*teardown_msi_irq)(unsigned int irq);
 182         void (*teardown_msi_irqs)(struct pci_dev *dev);
 183         void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
 184         int  (*setup_hpet_msi)(unsigned int irq, unsigned int id);
 185 };
 186
 187 struct IO_APIC_route_entry;
 188 struct io_apic_irq_attr;
 189 struct irq_data;
 190 struct cpumask;
 191
 192 struct x86_io_apic_ops {
 193         void            (*init)   (void);
 194         unsigned int    (*read)   (unsigned int apic, unsigned int reg);
 195         void            (*write)  (unsigned int apic, unsigned int reg, unsigned int value);
 196         void            (*modify) (unsigned int apic, unsigned int reg, unsigned int value);
 197         void            (*disable)(void);
 198         void            (*print_entries)(unsigned int apic, unsigned int nr_entries);
 199         int             (*set_affinity)(struct irq_data *data,
 200                                         const struct cpumask *mask,
 201                                         bool force);
 202         int             (*setup_entry)(int irq, struct IO_APIC_route_entry *entry,
 203                                        unsigned int destination, int vector,
 204                                        struct io_apic_irq_attr *attr);
 205         void            (*eoi_ioapic_pin)(int apic, int pin, int vector);
 206 };
 207
 208 extern struct x86_init_ops x86_init;
 209 extern struct x86_cpuinit_ops x86_cpuinit;
 210 extern struct x86_platform_ops x86_platform;
 211 extern struct x86_msi_ops x86_msi;
 212 extern struct x86_io_apic_ops x86_io_apic_ops;
 213 extern void x86_init_noop(void);
 214 extern void x86_init_uint_noop(unsigned int unused);
 215
 216 #endif