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 int x2apic_apic_id_valid(u32 apicid); 18 int x2apic_apic_id_registered(void); 19 void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest); 20 unsigned int x2apic_get_apic_id(unsigned long id); 21 u32 x2apic_set_apic_id(unsigned int id); 22 int x2apic_phys_pkg_id(int initial_apicid, int index_msb); 23 void x2apic_send_IPI_self(int vector); 24 void __x2apic_send_IPI_shorthand(int vector, u32 which); 25 26 /* IPI */ 27 28 DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand); 29 30 static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector, 31 unsigned int dest) 32 { 33 unsigned int icr = shortcut | dest; 34 35 switch (vector) { 36 default: 37 icr |= APIC_DM_FIXED | vector; 38 break; 39 case NMI_VECTOR: 40 icr |= APIC_DM_NMI; 41 break; 42 } 43 return icr; 44 } 45 46 void default_init_apic_ldr(void); 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 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