246 lines
7.8 KiB
C
246 lines
7.8 KiB
C
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#ifndef _ASM_X86_PLATFORM_H
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#define _ASM_X86_PLATFORM_H
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#include <asm/bootparam.h>
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struct mpc_bus;
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struct mpc_cpu;
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struct mpc_table;
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struct cpuinfo_x86;
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/**
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* struct x86_init_mpparse - platform specific mpparse ops
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* @mpc_record: platform specific mpc record accounting
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* @setup_ioapic_ids: platform specific ioapic id override
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* @mpc_apic_id: platform specific mpc apic id assignment
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* @smp_read_mpc_oem: platform specific oem mpc table setup
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* @mpc_oem_pci_bus: platform specific pci bus setup (default NULL)
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* @mpc_oem_bus_info: platform specific mpc bus info
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* @find_smp_config: find the smp configuration
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* @get_smp_config: get the smp configuration
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*/
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struct x86_init_mpparse {
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void (*mpc_record)(unsigned int mode);
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void (*setup_ioapic_ids)(void);
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int (*mpc_apic_id)(struct mpc_cpu *m);
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void (*smp_read_mpc_oem)(struct mpc_table *mpc);
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void (*mpc_oem_pci_bus)(struct mpc_bus *m);
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void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
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void (*find_smp_config)(void);
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void (*get_smp_config)(unsigned int early);
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};
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/**
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* struct x86_init_resources - platform specific resource related ops
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* @probe_roms: probe BIOS roms
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* @reserve_resources: reserve the standard resources for the
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* platform
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* @memory_setup: platform specific memory setup
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*
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*/
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struct x86_init_resources {
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void (*probe_roms)(void);
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void (*reserve_resources)(void);
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char *(*memory_setup)(void);
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};
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/**
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* struct x86_init_irqs - platform specific interrupt setup
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* @pre_vector_init: init code to run before interrupt vectors
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* are set up.
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* @intr_init: interrupt init code
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* @trap_init: platform specific trap setup
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*/
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struct x86_init_irqs {
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void (*pre_vector_init)(void);
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void (*intr_init)(void);
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void (*trap_init)(void);
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};
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/**
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* struct x86_init_oem - oem platform specific customizing functions
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* @arch_setup: platform specific architecure setup
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* @banner: print a platform specific banner
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*/
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struct x86_init_oem {
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void (*arch_setup)(void);
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void (*banner)(void);
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};
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/**
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* struct x86_init_paging - platform specific paging functions
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* @pagetable_init: platform specific paging initialization call to setup
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* the kernel pagetables and prepare accessors functions.
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* Callback must call paging_init(). Called once after the
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* direct mapping for phys memory is available.
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*/
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struct x86_init_paging {
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void (*pagetable_init)(void);
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};
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/**
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* struct x86_init_timers - platform specific timer setup
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* @setup_perpcu_clockev: set up the per cpu clock event device for the
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* boot cpu
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* @timer_init: initialize the platform timer (default PIT/HPET)
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* @wallclock_init: init the wallclock device
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*/
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struct x86_init_timers {
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void (*setup_percpu_clockev)(void);
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void (*timer_init)(void);
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void (*wallclock_init)(void);
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};
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/**
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* struct x86_init_iommu - platform specific iommu setup
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* @iommu_init: platform specific iommu setup
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*/
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struct x86_init_iommu {
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int (*iommu_init)(void);
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};
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/**
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* struct x86_init_pci - platform specific pci init functions
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* @arch_init: platform specific pci arch init call
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* @init: platform specific pci subsystem init
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* @init_irq: platform specific pci irq init
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* @fixup_irqs: platform specific pci irq fixup
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*/
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struct x86_init_pci {
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int (*arch_init)(void);
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int (*init)(void);
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void (*init_irq)(void);
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void (*fixup_irqs)(void);
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};
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/**
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* struct x86_init_ops - functions for platform specific setup
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*
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*/
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struct x86_init_ops {
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struct x86_init_resources resources;
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struct x86_init_mpparse mpparse;
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struct x86_init_irqs irqs;
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struct x86_init_oem oem;
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struct x86_init_paging paging;
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struct x86_init_timers timers;
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struct x86_init_iommu iommu;
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struct x86_init_pci pci;
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};
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/**
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* struct x86_cpuinit_ops - platform specific cpu hotplug setups
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* @setup_percpu_clockev: set up the per cpu clock event device
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* @early_percpu_clock_init: early init of the per cpu clock event device
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*/
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struct x86_cpuinit_ops {
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void (*setup_percpu_clockev)(void);
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void (*early_percpu_clock_init)(void);
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void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
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};
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struct timespec;
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/**
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* struct x86_legacy_devices - legacy x86 devices
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*
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* @pnpbios: this platform can have a PNPBIOS. If this is disabled the platform
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* is known to never have a PNPBIOS.
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*
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* These are devices known to require LPC or ISA bus. The definition of legacy
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* devices adheres to the ACPI 5.2.9.3 IA-PC Boot Architecture flag
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* ACPI_FADT_LEGACY_DEVICES. These devices consist of user visible devices on
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* the LPC or ISA bus. User visible devices are devices that have end-user
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* accessible connectors (for example, LPT parallel port). Legacy devices on
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* the LPC bus consist for example of serial and parallel ports, PS/2 keyboard
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* / mouse, and the floppy disk controller. A system that lacks all known
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* legacy devices can assume all devices can be detected exclusively via
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* standard device enumeration mechanisms including the ACPI namespace.
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*
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* A system which has does not have ACPI_FADT_LEGACY_DEVICES enabled must not
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* have any of the legacy devices enumerated below present.
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*/
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struct x86_legacy_devices {
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int pnpbios;
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};
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/**
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* struct x86_legacy_features - legacy x86 features
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*
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* @rtc: this device has a CMOS real-time clock present
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* @reserve_bios_regions: boot code will search for the EBDA address and the
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* start of the 640k - 1M BIOS region. If false, the platform must
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* ensure that its memory map correctly reserves sub-1MB regions as needed.
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* @devices: legacy x86 devices, refer to struct x86_legacy_devices
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* documentation for further details.
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*/
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struct x86_legacy_features {
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int rtc;
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int reserve_bios_regions;
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struct x86_legacy_devices devices;
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};
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/**
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* struct x86_platform_ops - platform specific runtime functions
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* @calibrate_cpu: calibrate CPU
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* @calibrate_tsc: calibrate TSC, if different from CPU
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* @get_wallclock: get time from HW clock like RTC etc.
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* @set_wallclock: set time back to HW clock
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* @is_untracked_pat_range exclude from PAT logic
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* @nmi_init enable NMI on cpus
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* @i8042_detect pre-detect if i8042 controller exists
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* @save_sched_clock_state: save state for sched_clock() on suspend
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* @restore_sched_clock_state: restore state for sched_clock() on resume
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* @apic_post_init: adjust apic if neeeded
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* @legacy: legacy features
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* @set_legacy_features: override legacy features. Use of this callback
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* is highly discouraged. You should only need
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* this if your hardware platform requires further
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* custom fine tuning far beyong what may be
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* possible in x86_early_init_platform_quirks() by
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* only using the current x86_hardware_subarch
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* semantics.
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*/
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struct x86_platform_ops {
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unsigned long (*calibrate_cpu)(void);
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unsigned long (*calibrate_tsc)(void);
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void (*get_wallclock)(struct timespec *ts);
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int (*set_wallclock)(const struct timespec *ts);
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void (*iommu_shutdown)(void);
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bool (*is_untracked_pat_range)(u64 start, u64 end);
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void (*nmi_init)(void);
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unsigned char (*get_nmi_reason)(void);
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int (*i8042_detect)(void);
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void (*save_sched_clock_state)(void);
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void (*restore_sched_clock_state)(void);
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void (*apic_post_init)(void);
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struct x86_legacy_features legacy;
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void (*set_legacy_features)(void);
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};
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struct pci_dev;
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struct x86_msi_ops {
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int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
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void (*teardown_msi_irq)(unsigned int irq);
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void (*teardown_msi_irqs)(struct pci_dev *dev);
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void (*restore_msi_irqs)(struct pci_dev *dev);
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};
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struct x86_io_apic_ops {
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unsigned int (*read) (unsigned int apic, unsigned int reg);
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void (*disable)(void);
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};
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extern struct x86_init_ops x86_init;
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extern struct x86_cpuinit_ops x86_cpuinit;
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extern struct x86_platform_ops x86_platform;
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extern struct x86_msi_ops x86_msi;
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extern struct x86_io_apic_ops x86_io_apic_ops;
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extern void x86_early_init_platform_quirks(void);
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extern void x86_init_noop(void);
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extern void x86_init_uint_noop(unsigned int unused);
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#endif
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