1 #ifndef __ASM_MACH_APIC_H
2 #define __ASM_MACH_APIC_H
4 #define xapic_phys_to_log_apicid(cpu) (per_cpu(x86_bios_cpu_apicid, cpu))
5 #define esr_disable (1)
7 static inline int bigsmp_apic_id_registered(void)
12 static inline const cpumask_t *bigsmp_target_cpus(void)
15 return &cpu_online_map;
17 return &cpumask_of_cpu(0);
21 #undef APIC_DEST_LOGICAL
22 #define APIC_DEST_LOGICAL 0
23 #define APIC_DFR_VALUE (APIC_DFR_FLAT)
24 #define NO_BALANCE_IRQ (0)
26 static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
31 static inline unsigned long check_apicid_present(int bit)
36 static inline unsigned long calculate_ldr(int cpu)
38 unsigned long val, id;
39 val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
40 id = xapic_phys_to_log_apicid(cpu);
41 val |= SET_APIC_LOGICAL_ID(id);
46 * Set up the logical destination ID.
48 * Intel recommends to set DFR, LDR and TPR before enabling
49 * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
50 * document number 292116). So here it goes...
52 static inline void init_apic_ldr(void)
55 int cpu = smp_processor_id();
57 apic_write(APIC_DFR, APIC_DFR_VALUE);
58 val = calculate_ldr(cpu);
59 apic_write(APIC_LDR, val);
62 static inline void setup_apic_routing(void)
64 printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
65 "Physflat", nr_ioapics);
68 static inline int multi_timer_check(int apic, int irq)
73 static inline int apicid_to_node(int logical_apicid)
75 return apicid_2_node[hard_smp_processor_id()];
78 static inline int cpu_present_to_apicid(int mps_cpu)
80 if (mps_cpu < nr_cpu_ids)
81 return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
86 static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
88 return physid_mask_of_physid(phys_apicid);
91 extern u8 cpu_2_logical_apicid[];
92 /* Mapping from cpu number to logical apicid */
93 static inline int cpu_to_logical_apicid(int cpu)
95 if (cpu >= nr_cpu_ids)
97 return cpu_physical_id(cpu);
100 static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
102 /* For clustered we don't have a good way to do this yet - hack */
103 return physids_promote(0xFFL);
106 static inline void setup_portio_remap(void)
110 static inline void enable_apic_mode(void)
114 static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
119 /* As we are using single CPU as destination, pick only one CPU here */
120 static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
125 cpu = first_cpu(*cpumask);
126 apicid = cpu_to_logical_apicid(cpu);
130 static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
131 const struct cpumask *andmask)
136 * We're using fixed IRQ delivery, can only return one phys APIC ID.
137 * May as well be the first.
139 for_each_cpu_and(cpu, cpumask, andmask)
140 if (cpumask_test_cpu(cpu, cpu_online_mask))
142 if (cpu < nr_cpu_ids)
143 return cpu_to_logical_apicid(cpu);
148 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
150 return cpuid_apic >> index_msb;
153 #endif /* __ASM_MACH_APIC_H */