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 unsigned int x2apic_get_apic_id(unsigned long id);
19 u32 x2apic_set_apic_id(unsigned int id);
20 int x2apic_phys_pkg_id(int initial_apicid, int index_msb);
21
22 void x2apic_send_IPI_all(int vector);
23 void x2apic_send_IPI_allbutself(int vector);
24 void x2apic_send_IPI_self(int vector);
25 extern u32 x2apic_max_apicid;
26
27 /* IPI */
28
29 DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand);
30
__prepare_ICR(unsigned int shortcut,int vector,unsigned int dest)31 static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector,
32 unsigned int dest)
33 {
34 unsigned int icr = shortcut | dest;
35
36 switch (vector) {
37 default:
38 icr |= APIC_DM_FIXED | vector;
39 break;
40 case NMI_VECTOR:
41 icr |= APIC_DM_NMI;
42 break;
43 }
44 return icr;
45 }
46
47 void default_init_apic_ldr(void);
48
49 void apic_mem_wait_icr_idle(void);
50 u32 apic_mem_wait_icr_idle_timeout(void);
51
52 /*
53 * This is used to send an IPI with no shorthand notation (the destination is
54 * specified in bits 56 to 63 of the ICR).
55 */
56 void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest);
57
58 void default_send_IPI_single(int cpu, int vector);
59 void default_send_IPI_single_phys(int cpu, int vector);
60 void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector);
61 void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask, int vector);
62 void default_send_IPI_allbutself(int vector);
63 void default_send_IPI_all(int vector);
64 void default_send_IPI_self(int vector);
65
66 bool default_apic_id_registered(void);
67
68 #ifdef CONFIG_X86_32
69 void default_send_IPI_mask_sequence_logical(const struct cpumask *mask, int vector);
70 void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask, int vector);
71 void default_send_IPI_mask_logical(const struct cpumask *mask, int vector);
72 void x86_32_probe_bigsmp_early(void);
73 void x86_32_install_bigsmp(void);
74 #else
x86_32_probe_bigsmp_early(void)75 static inline void x86_32_probe_bigsmp_early(void) { }
x86_32_install_bigsmp(void)76 static inline void x86_32_install_bigsmp(void) { }
77 #endif
78
79 #ifdef CONFIG_X86_BIGSMP
80 bool apic_bigsmp_possible(bool cmdline_selected);
81 void apic_bigsmp_force(void);
82 #else
apic_bigsmp_possible(bool cmdline_selected)83 static inline bool apic_bigsmp_possible(bool cmdline_selected) { return false; };
apic_bigsmp_force(void)84 static inline void apic_bigsmp_force(void) { }
85 #endif
86