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))
6 static inline int bigsmp_apic_id_registered(void)
11 static inline const cpumask_t *bigsmp_target_cpus(void)
14 return &cpu_online_map;
16 return &cpumask_of_cpu(0);
20 #define APIC_DFR_VALUE (APIC_DFR_FLAT)
22 static inline unsigned long
23 bigsmp_check_apicid_used(physid_mask_t bitmap, int apicid)
28 static inline unsigned long bigsmp_check_apicid_present(int bit)
33 static inline unsigned long calculate_ldr(int cpu)
35 unsigned long val, id;
36 val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
37 id = xapic_phys_to_log_apicid(cpu);
38 val |= SET_APIC_LOGICAL_ID(id);
43 * Set up the logical destination ID.
45 * Intel recommends to set DFR, LDR and TPR before enabling
46 * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
47 * document number 292116). So here it goes...
49 static inline void bigsmp_init_apic_ldr(void)
52 int cpu = smp_processor_id();
54 apic_write(APIC_DFR, APIC_DFR_VALUE);
55 val = calculate_ldr(cpu);
56 apic_write(APIC_LDR, val);
59 static inline void bigsmp_setup_apic_routing(void)
61 printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
62 "Physflat", nr_ioapics);
65 static inline int bigsmp_apicid_to_node(int logical_apicid)
67 return apicid_2_node[hard_smp_processor_id()];
70 static inline int bigsmp_cpu_present_to_apicid(int mps_cpu)
72 if (mps_cpu < nr_cpu_ids)
73 return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
78 static inline physid_mask_t bigsmp_apicid_to_cpu_present(int phys_apicid)
80 return physid_mask_of_physid(phys_apicid);
83 extern u8 cpu_2_logical_apicid[];
84 /* Mapping from cpu number to logical apicid */
85 static inline int bigsmp_cpu_to_logical_apicid(int cpu)
87 if (cpu >= nr_cpu_ids)
89 return cpu_physical_id(cpu);
92 static inline physid_mask_t bigsmp_ioapic_phys_id_map(physid_mask_t phys_map)
94 /* For clustered we don't have a good way to do this yet - hack */
95 return physids_promote(0xFFL);
98 static inline void bigsmp_setup_portio_remap(void)
102 static inline void enable_apic_mode(void)
106 static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
111 /* As we are using single CPU as destination, pick only one CPU here */
112 static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
117 cpu = first_cpu(*cpumask);
118 apicid = bigsmp_cpu_to_logical_apicid(cpu);
122 static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
123 const struct cpumask *andmask)
128 * We're using fixed IRQ delivery, can only return one phys APIC ID.
129 * May as well be the first.
131 for_each_cpu_and(cpu, cpumask, andmask)
132 if (cpumask_test_cpu(cpu, cpu_online_mask))
134 if (cpu < nr_cpu_ids)
135 return bigsmp_cpu_to_logical_apicid(cpu);
140 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
142 return cpuid_apic >> index_msb;
145 #endif /* __ASM_MACH_APIC_H */