arch/x86/kernel/apic/local.h

   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
  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