This source file includes following definitions.
- noop_init_apic_ldr
- noop_send_IPI
- noop_send_IPI_mask
- noop_send_IPI_mask_allbutself
- noop_send_IPI_allbutself
- noop_send_IPI_all
- noop_send_IPI_self
- noop_apic_wait_icr_idle
- noop_apic_icr_write
- noop_wakeup_secondary_cpu
- noop_safe_apic_wait_icr_idle
- noop_apic_icr_read
- noop_phys_pkg_id
- noop_get_apic_id
- noop_probe
- noop_apic_id_registered
- noop_apic_read
- noop_apic_write
- noop_x86_32_early_logical_apicid
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12 #include <linux/cpumask.h>
13
14 #include <asm/apic.h>
15
16 static void noop_init_apic_ldr(void) { }
17 static void noop_send_IPI(int cpu, int vector) { }
18 static void noop_send_IPI_mask(const struct cpumask *cpumask, int vector) { }
19 static void noop_send_IPI_mask_allbutself(const struct cpumask *cpumask, int vector) { }
20 static void noop_send_IPI_allbutself(int vector) { }
21 static void noop_send_IPI_all(int vector) { }
22 static void noop_send_IPI_self(int vector) { }
23 static void noop_apic_wait_icr_idle(void) { }
24 static void noop_apic_icr_write(u32 low, u32 id) { }
25
26 static int noop_wakeup_secondary_cpu(int apicid, unsigned long start_eip)
27 {
28 return -1;
29 }
30
31 static u32 noop_safe_apic_wait_icr_idle(void)
32 {
33 return 0;
34 }
35
36 static u64 noop_apic_icr_read(void)
37 {
38 return 0;
39 }
40
41 static int noop_phys_pkg_id(int cpuid_apic, int index_msb)
42 {
43 return 0;
44 }
45
46 static unsigned int noop_get_apic_id(unsigned long x)
47 {
48 return 0;
49 }
50
51 static int noop_probe(void)
52 {
53
54
55
56
57 return 0;
58 }
59
60 static int noop_apic_id_registered(void)
61 {
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66
67
68 return physid_isset(0, phys_cpu_present_map);
69 }
70
71 static u32 noop_apic_read(u32 reg)
72 {
73 WARN_ON_ONCE(boot_cpu_has(X86_FEATURE_APIC) && !disable_apic);
74 return 0;
75 }
76
77 static void noop_apic_write(u32 reg, u32 v)
78 {
79 WARN_ON_ONCE(boot_cpu_has(X86_FEATURE_APIC) && !disable_apic);
80 }
81
82 #ifdef CONFIG_X86_32
83 static int noop_x86_32_early_logical_apicid(int cpu)
84 {
85 return BAD_APICID;
86 }
87 #endif
88
89 struct apic apic_noop __ro_after_init = {
90 .name = "noop",
91 .probe = noop_probe,
92 .acpi_madt_oem_check = NULL,
93
94 .apic_id_valid = default_apic_id_valid,
95 .apic_id_registered = noop_apic_id_registered,
96
97 .irq_delivery_mode = dest_Fixed,
98
99 .irq_dest_mode = 1,
100
101 .disable_esr = 0,
102 .dest_logical = APIC_DEST_LOGICAL,
103 .check_apicid_used = default_check_apicid_used,
104
105 .init_apic_ldr = noop_init_apic_ldr,
106
107 .ioapic_phys_id_map = default_ioapic_phys_id_map,
108 .setup_apic_routing = NULL,
109
110 .cpu_present_to_apicid = default_cpu_present_to_apicid,
111 .apicid_to_cpu_present = physid_set_mask_of_physid,
112
113 .check_phys_apicid_present = default_check_phys_apicid_present,
114
115 .phys_pkg_id = noop_phys_pkg_id,
116
117 .get_apic_id = noop_get_apic_id,
118 .set_apic_id = NULL,
119
120 .calc_dest_apicid = apic_flat_calc_apicid,
121
122 .send_IPI = noop_send_IPI,
123 .send_IPI_mask = noop_send_IPI_mask,
124 .send_IPI_mask_allbutself = noop_send_IPI_mask_allbutself,
125 .send_IPI_allbutself = noop_send_IPI_allbutself,
126 .send_IPI_all = noop_send_IPI_all,
127 .send_IPI_self = noop_send_IPI_self,
128
129 .wakeup_secondary_cpu = noop_wakeup_secondary_cpu,
130
131 .inquire_remote_apic = NULL,
132
133 .read = noop_apic_read,
134 .write = noop_apic_write,
135 .eoi_write = noop_apic_write,
136 .icr_read = noop_apic_icr_read,
137 .icr_write = noop_apic_icr_write,
138 .wait_icr_idle = noop_apic_wait_icr_idle,
139 .safe_wait_icr_idle = noop_safe_apic_wait_icr_idle,
140
141 #ifdef CONFIG_X86_32
142 .x86_32_early_logical_apicid = noop_x86_32_early_logical_apicid,
143 #endif
144 };