1 /* 1
2 * Copyright (C) 2009 Thomas Gleixner <tglx@li
3 *
4 * For licencing details see kernel-base/COPY
5 */
6 #include <linux/dmi.h>
7 #include <linux/init.h>
8 #include <linux/ioport.h>
9 #include <linux/export.h>
10 #include <linux/pci.h>
11 #include <linux/acpi.h>
12
13 #include <asm/acpi.h>
14 #include <asm/bios_ebda.h>
15 #include <asm/paravirt.h>
16 #include <asm/pci_x86.h>
17 #include <asm/mpspec.h>
18 #include <asm/setup.h>
19 #include <asm/apic.h>
20 #include <asm/e820/api.h>
21 #include <asm/time.h>
22 #include <asm/irq.h>
23 #include <asm/io_apic.h>
24 #include <asm/hpet.h>
25 #include <asm/memtype.h>
26 #include <asm/tsc.h>
27 #include <asm/iommu.h>
28 #include <asm/mach_traps.h>
29 #include <asm/irqdomain.h>
30 #include <asm/realmode.h>
31
32 void x86_init_noop(void) { }
33 void __init x86_init_uint_noop(unsigned int un
34 static int __init iommu_init_noop(void) { retu
35 static void iommu_shutdown_noop(void) { }
36 bool __init bool_x86_init_noop(void) { return
37 void x86_op_int_noop(int cpu) { }
38 int set_rtc_noop(const struct timespec64 *now)
39 void get_rtc_noop(struct timespec64 *now) { }
40
41 static __initconst const struct of_device_id o
42 { .compatible = "motorola,mc146818" },
43 {}
44 };
45
46 /*
47 * Allow devicetree configured systems to disa
48 * corresponding DT node's status property to
49 * out for CONFIG_OF=n builds.
50 */
51 static __init void x86_wallclock_init(void)
52 {
53 struct device_node *node = of_find_mat
54
55 if (node && !of_device_is_available(no
56 x86_platform.get_wallclock = g
57 x86_platform.set_wallclock = s
58 }
59 }
60
61 /*
62 * The platform setup functions are preset wit
63 * for standard PC hardware.
64 */
65 struct x86_init_ops x86_init __initdata = {
66
67 .resources = {
68 .probe_roms = prob
69 .reserve_resources = rese
70 .memory_setup = e820
71 .dmi_setup = dmi_
72 },
73
74 .mpparse = {
75 .setup_ioapic_ids = x86_
76 .find_mptable = mppa
77 .early_parse_smp_cfg = mppa
78 .parse_smp_cfg = mppa
79 },
80
81 .irqs = {
82 .pre_vector_init = init
83 .intr_init = nati
84 .intr_mode_select = apic
85 .intr_mode_init = apic
86 .create_pci_msi_domain = nati
87 },
88
89 .oem = {
90 .arch_setup = x86_
91 .banner = defa
92 },
93
94 .paging = {
95 .pagetable_init = nati
96 },
97
98 .timers = {
99 .setup_percpu_clockev = setu
100 .timer_init = hpet
101 .wallclock_init = x86_
102 },
103
104 .iommu = {
105 .iommu_init = iomm
106 },
107
108 .pci = {
109 .init = x86_
110 .init_irq = x86_
111 .fixup_irqs = x86_
112 },
113
114 .hyper = {
115 .init_platform = x86_
116 .guest_late_init = x86_
117 .x2apic_available = bool
118 .msi_ext_dest_id = bool
119 .init_mem_mapping = x86_
120 .init_after_bootmem = x86_
121 },
122
123 .acpi = {
124 .set_root_pointer = x86_
125 .get_root_pointer = x86_
126 .reduced_hw_early_init = acpi
127 },
128 };
129
130 struct x86_cpuinit_ops x86_cpuinit = {
131 .early_percpu_clock_init = x86_
132 .setup_percpu_clockev = setu
133 .parallel_bringup = true
134 };
135
136 static void default_nmi_init(void) { };
137
138 static int enc_status_change_prepare_noop(unsi
139 static int enc_status_change_finish_noop(unsig
140 static bool enc_tlb_flush_required_noop(bool e
141 static bool enc_cache_flush_required_noop(void
142 static void enc_kexec_begin_noop(void) {}
143 static void enc_kexec_finish_noop(void) {}
144 static bool is_private_mmio_noop(u64 addr) {re
145
146 struct x86_platform_ops x86_platform __ro_afte
147 .calibrate_cpu = nati
148 .calibrate_tsc = nati
149 .get_wallclock = mach
150 .set_wallclock = mach
151 .iommu_shutdown = iomm
152 .is_untracked_pat_range = is_I
153 .nmi_init = defa
154 .get_nmi_reason = defa
155 .save_sched_clock_state = tsc_
156 .restore_sched_clock_state = tsc_
157 .realmode_reserve = rese
158 .realmode_init = init
159 .hyper.pin_vcpu = x86_
160 .hyper.is_private_mmio = is_p
161
162 .guest = {
163 .enc_status_change_prepare = e
164 .enc_status_change_finish = e
165 .enc_tlb_flush_required = e
166 .enc_cache_flush_required = e
167 .enc_kexec_begin = e
168 .enc_kexec_finish = e
169 },
170 };
171
172 EXPORT_SYMBOL_GPL(x86_platform);
173
174 struct x86_apic_ops x86_apic_ops __ro_after_in
175 .io_apic_read = native_io_apic_read,
176 .restore = native_restore_boot_
177 };
178
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