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 /* APIC flat 64 */
17 void flat_init_apic_ldr(void);
18
19 /* X2APIC */
20 int x2apic_apic_id_valid(u32 apicid);
21 int x2apic_apic_id_registered(void);
22 void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest);
23 unsigned int x2apic_get_apic_id(unsigned long id);
24 u32 x2apic_set_apic_id(unsigned int id);
25 int x2apic_phys_pkg_id(int initial_apicid, int index_msb);
26 void x2apic_send_IPI_self(int vector);
27 void __x2apic_send_IPI_shorthand(int vector, u32 which);
28
29 /* IPI */
30
31 DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand);
32
__prepare_ICR(unsigned int shortcut,int vector,unsigned int dest)33 static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector,
34 unsigned int dest)
35 {
36 unsigned int icr = shortcut | dest;
37
38 switch (vector) {
39 default:
40 icr |= APIC_DM_FIXED | vector;
41 break;
42 case NMI_VECTOR:
43 icr |= APIC_DM_NMI;
44 break;
45 }
46 return icr;
47 }
48
49 void __default_send_IPI_shortcut(unsigned int shortcut, int vector);
50
51 /*
52 * This is used to send an IPI with no shorthand notation (the destination is
53 * specified in bits 56 to 63 of the ICR).
54 */
55 void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest);
56
57 void default_send_IPI_single(int cpu, int vector);
58 void default_send_IPI_single_phys(int cpu, int vector);
59 void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector);
60 void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask, int vector);
61 void default_send_IPI_allbutself(int vector);
62 void default_send_IPI_all(int vector);
63 void default_send_IPI_self(int vector);
64
65 #ifdef CONFIG_X86_32
66 void default_send_IPI_mask_sequence_logical(const struct cpumask *mask, int vector);
67 void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask, int vector);
68 void default_send_IPI_mask_logical(const struct cpumask *mask, int vector);
69 #endif
70