kernel/apic/local.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Historical copyright notices:
0004  *
0005  * Copyright 2004 James Cleverdon, IBM.
0006  * (c) 1995 Alan Cox, Building #3 <alan@redhat.com>
0007  * (c) 1998-99, 2000 Ingo Molnar <mingo@redhat.com>
0008  * (c) 2002,2003 Andi Kleen, SuSE Labs.
0009  */
0010
0011 #include <linux/jump_label.h>
0012
0013 #include <asm/irq_vectors.h>
0014 #include <asm/apic.h>
0015
0016 /* APIC flat 64 */
0017 void flat_init_apic_ldr(void);
0018
0019 /* X2APIC */
0020 int x2apic_apic_id_valid(u32 apicid);
0021 int x2apic_apic_id_registered(void);
0022 void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest);
0023 unsigned int x2apic_get_apic_id(unsigned long id);
0024 u32 x2apic_set_apic_id(unsigned int id);
0025 int x2apic_phys_pkg_id(int initial_apicid, int index_msb);
0026 void x2apic_send_IPI_self(int vector);
0027 void __x2apic_send_IPI_shorthand(int vector, u32 which);
0028
0029 /* IPI */
0030
0031 DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand);
0032
0033 static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector,
0034                      unsigned int dest)
0035 {
0036     unsigned int icr = shortcut | dest;
0037
0038     switch (vector) {
0039     default:
0040         icr |= APIC_DM_FIXED | vector;
0041         break;
0042     case NMI_VECTOR:
0043         icr |= APIC_DM_NMI;
0044         break;
0045     }
0046     return icr;
0047 }
0048
0049 void __default_send_IPI_shortcut(unsigned int shortcut, int vector);
0050
0051 /*
0052  * This is used to send an IPI with no shorthand notation (the destination is
0053  * specified in bits 56 to 63 of the ICR).
0054  */
0055 void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest);
0056
0057 void default_send_IPI_single(int cpu, int vector);
0058 void default_send_IPI_single_phys(int cpu, int vector);
0059 void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector);
0060 void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask, int vector);
0061 void default_send_IPI_allbutself(int vector);
0062 void default_send_IPI_all(int vector);
0063 void default_send_IPI_self(int vector);
0064
0065 #ifdef CONFIG_X86_32
0066 void default_send_IPI_mask_sequence_logical(const struct cpumask *mask, int vector);
0067 void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask, int vector);
0068 void default_send_IPI_mask_logical(const struct cpumask *mask, int vector);
0069 #endif