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/apic.h>
14
15 /* APIC flat 64 */
16 void flat_init_apic_ldr(void);
17
18 /* X2APIC */
19 int x2apic_apic_id_valid(u32 apicid);
20 int x2apic_apic_id_registered(void);
21 void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest);
22 unsigned int x2apic_get_apic_id(unsigned long id);
23 u32 x2apic_set_apic_id(unsigned int id);
24 int x2apic_phys_pkg_id(int initial_apicid, int index_msb);
25 void x2apic_send_IPI_self(int vector);
26 void __x2apic_send_IPI_shorthand(int vector, u32 which);
27
28 /* IPI */
29
30 DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand);
31
__prepare_ICR(unsigned int shortcut,int vector,unsigned int dest)32 static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector,
33 unsigned int dest)
34 {
35 unsigned int icr = shortcut | dest;
36
37 switch (vector) {
38 default:
39 icr |= APIC_DM_FIXED | vector;
40 break;
41 case NMI_VECTOR:
42 icr |= APIC_DM_NMI;
43 break;
44 }
45 return icr;
46 }
47
48 void __default_send_IPI_shortcut(unsigned int shortcut, int vector);
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 #endif
69
