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