1/*
2 * Copyright (C) 2009 Thomas Gleixner <tglx@linutronix.de>
3 *
4 *  For licencing details see kernel-base/COPYING
5 */
6#include <linux/init.h>
7#include <linux/ioport.h>
8#include <linux/module.h>
9#include <linux/pci.h>
10
11#include <asm/bios_ebda.h>
12#include <asm/paravirt.h>
13#include <asm/pci_x86.h>
14#include <asm/pci.h>
15#include <asm/mpspec.h>
16#include <asm/setup.h>
17#include <asm/apic.h>
18#include <asm/e820.h>
19#include <asm/time.h>
20#include <asm/irq.h>
21#include <asm/io_apic.h>
22#include <asm/hpet.h>
23#include <asm/pat.h>
24#include <asm/tsc.h>
25#include <asm/iommu.h>
26#include <asm/mach_traps.h>
27
28void x86_init_noop(void) { }
29void __init x86_init_uint_noop(unsigned int unused) { }
30int __init iommu_init_noop(void) { return 0; }
31void iommu_shutdown_noop(void) { }
32
33/*
34 * The platform setup functions are preset with the default functions
35 * for standard PC hardware.
36 */
37struct x86_init_ops x86_init __initdata = {
38
39	.resources = {
40		.probe_roms		= probe_roms,
41		.reserve_resources	= reserve_standard_io_resources,
42		.memory_setup		= default_machine_specific_memory_setup,
43	},
44
45	.mpparse = {
46		.mpc_record		= x86_init_uint_noop,
47		.setup_ioapic_ids	= x86_init_noop,
48		.mpc_apic_id		= default_mpc_apic_id,
49		.smp_read_mpc_oem	= default_smp_read_mpc_oem,
50		.mpc_oem_bus_info	= default_mpc_oem_bus_info,
51		.find_smp_config	= default_find_smp_config,
52		.get_smp_config		= default_get_smp_config,
53	},
54
55	.irqs = {
56		.pre_vector_init	= init_ISA_irqs,
57		.intr_init		= native_init_IRQ,
58		.trap_init		= x86_init_noop,
59	},
60
61	.oem = {
62		.arch_setup		= x86_init_noop,
63		.banner			= default_banner,
64	},
65
66	.paging = {
67		.pagetable_init		= native_pagetable_init,
68	},
69
70	.timers = {
71		.setup_percpu_clockev	= setup_boot_APIC_clock,
72		.tsc_pre_init		= x86_init_noop,
73		.timer_init		= hpet_time_init,
74		.wallclock_init		= x86_init_noop,
75	},
76
77	.iommu = {
78		.iommu_init		= iommu_init_noop,
79	},
80
81	.pci = {
82		.init			= x86_default_pci_init,
83		.init_irq		= x86_default_pci_init_irq,
84		.fixup_irqs		= x86_default_pci_fixup_irqs,
85	},
86};
87
88struct x86_cpuinit_ops x86_cpuinit = {
89	.early_percpu_clock_init	= x86_init_noop,
90	.setup_percpu_clockev		= setup_secondary_APIC_clock,
91};
92
93static void default_nmi_init(void) { };
94static int default_i8042_detect(void) { return 1; };
95
96struct x86_platform_ops x86_platform = {
97	.calibrate_tsc			= native_calibrate_tsc,
98	.get_wallclock			= mach_get_cmos_time,
99	.set_wallclock			= mach_set_rtc_mmss,
100	.iommu_shutdown			= iommu_shutdown_noop,
101	.is_untracked_pat_range		= is_ISA_range,
102	.nmi_init			= default_nmi_init,
103	.get_nmi_reason			= default_get_nmi_reason,
104	.i8042_detect			= default_i8042_detect,
105	.save_sched_clock_state 	= tsc_save_sched_clock_state,
106	.restore_sched_clock_state 	= tsc_restore_sched_clock_state,
107};
108
109EXPORT_SYMBOL_GPL(x86_platform);
110
111#if defined(CONFIG_PCI_MSI)
112struct x86_msi_ops x86_msi = {
113	.setup_msi_irqs		= native_setup_msi_irqs,
114	.compose_msi_msg	= native_compose_msi_msg,
115	.teardown_msi_irq	= native_teardown_msi_irq,
116	.teardown_msi_irqs	= default_teardown_msi_irqs,
117	.restore_msi_irqs	= default_restore_msi_irqs,
118	.setup_hpet_msi		= default_setup_hpet_msi,
119};
120
121/* MSI arch specific hooks */
122int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
123{
124	return x86_msi.setup_msi_irqs(dev, nvec, type);
125}
126
127void arch_teardown_msi_irqs(struct pci_dev *dev)
128{
129	x86_msi.teardown_msi_irqs(dev);
130}
131
132void arch_teardown_msi_irq(unsigned int irq)
133{
134	x86_msi.teardown_msi_irq(irq);
135}
136
137void arch_restore_msi_irqs(struct pci_dev *dev)
138{
139	x86_msi.restore_msi_irqs(dev);
140}
141#endif
142
143struct x86_io_apic_ops x86_io_apic_ops = {
144	.init			= native_io_apic_init_mappings,
145	.read			= native_io_apic_read,
146	.write			= native_io_apic_write,
147	.modify			= native_io_apic_modify,
148	.disable		= native_disable_io_apic,
149	.print_entries		= native_io_apic_print_entries,
150	.set_affinity		= native_ioapic_set_affinity,
151	.setup_entry		= native_setup_ioapic_entry,
152	.eoi_ioapic_pin		= native_eoi_ioapic_pin,
153};
154