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
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