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/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