1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Historical copyright notices: |
4 | * |
5 | * Copyright 2004 James Cleverdon, IBM. |
6 | * (c) 1995 Alan Cox, Building #3 <alan@redhat.com> |
7 | * (c) 1998-99, 2000 Ingo Molnar <mingo@redhat.com> |
8 | * (c) 2002,2003 Andi Kleen, SuSE Labs. |
9 | */ |
10 | |
11 | #include <linux/jump_label.h> |
12 | |
13 | #include <asm/irq_vectors.h> |
14 | #include <asm/apic.h> |
15 | |
16 | /* X2APIC */ |
17 | void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest); |
18 | u32 x2apic_get_apic_id(u32 id); |
19 | |
20 | void x2apic_send_IPI_all(int vector); |
21 | void x2apic_send_IPI_allbutself(int vector); |
22 | void x2apic_send_IPI_self(int vector); |
23 | extern u32 x2apic_max_apicid; |
24 | |
25 | /* IPI */ |
26 | |
27 | DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand); |
28 | |
29 | static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector, |
30 | unsigned int dest) |
31 | { |
32 | unsigned int icr = shortcut | dest; |
33 | |
34 | switch (vector) { |
35 | default: |
36 | icr |= APIC_DM_FIXED | vector; |
37 | break; |
38 | case NMI_VECTOR: |
39 | icr |= APIC_DM_NMI; |
40 | break; |
41 | } |
42 | return icr; |
43 | } |
44 | |
45 | void default_init_apic_ldr(void); |
46 | |
47 | void apic_mem_wait_icr_idle(void); |
48 | u32 apic_mem_wait_icr_idle_timeout(void); |
49 | |
50 | /* |
51 | * This is used to send an IPI with no shorthand notation (the destination is |
52 | * specified in bits 56 to 63 of the ICR). |
53 | */ |
54 | void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest); |
55 | |
56 | void default_send_IPI_single(int cpu, int vector); |
57 | void default_send_IPI_single_phys(int cpu, int vector); |
58 | void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector); |
59 | void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask, int vector); |
60 | void default_send_IPI_allbutself(int vector); |
61 | void default_send_IPI_all(int vector); |
62 | void default_send_IPI_self(int vector); |
63 | |
64 | #ifdef CONFIG_X86_32 |
65 | void default_send_IPI_mask_sequence_logical(const struct cpumask *mask, int vector); |
66 | void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask, int vector); |
67 | void default_send_IPI_mask_logical(const struct cpumask *mask, int vector); |
68 | void x86_32_probe_bigsmp_early(void); |
69 | void x86_32_install_bigsmp(void); |
70 | #else |
71 | static inline void x86_32_probe_bigsmp_early(void) { } |
72 | static inline void x86_32_install_bigsmp(void) { } |
73 | #endif |
74 | |
75 | #ifdef CONFIG_X86_BIGSMP |
76 | bool apic_bigsmp_possible(bool cmdline_selected); |
77 | void apic_bigsmp_force(void); |
78 | #else |
79 | static inline bool apic_bigsmp_possible(bool cmdline_selected) { return false; }; |
80 | static inline void apic_bigsmp_force(void) { } |
81 | #endif |
82 | |