Merge branches 'irq/sparseirq', 'x86/quirks' and 'x86/reboot' into cpus4096
[linux-2.6-block.git] / arch / x86 / include / asm / mach-default / mach_apic.h
1 #ifndef _ASM_X86_MACH_DEFAULT_MACH_APIC_H
2 #define _ASM_X86_MACH_DEFAULT_MACH_APIC_H
3
4 #ifdef CONFIG_X86_LOCAL_APIC
5
6 #include <mach_apicdef.h>
7 #include <asm/smp.h>
8
9 #define APIC_DFR_VALUE  (APIC_DFR_FLAT)
10
11 static inline cpumask_t target_cpus(void)
12
13 #ifdef CONFIG_SMP
14         return cpu_online_map;
15 #else
16         return cpumask_of_cpu(0);
17 #endif
18
19
20 #define NO_BALANCE_IRQ (0)
21 #define esr_disable (0)
22
23 #ifdef CONFIG_X86_64
24 #include <asm/genapic.h>
25 #define INT_DELIVERY_MODE (genapic->int_delivery_mode)
26 #define INT_DEST_MODE (genapic->int_dest_mode)
27 #define TARGET_CPUS       (genapic->target_cpus())
28 #define apic_id_registered (genapic->apic_id_registered)
29 #define init_apic_ldr (genapic->init_apic_ldr)
30 #define cpu_mask_to_apicid (genapic->cpu_mask_to_apicid)
31 #define phys_pkg_id     (genapic->phys_pkg_id)
32 #define vector_allocation_domain    (genapic->vector_allocation_domain)
33 #define read_apic_id()  (GET_APIC_ID(apic_read(APIC_ID)))
34 #define send_IPI_self (genapic->send_IPI_self)
35 #define wakeup_secondary_cpu (genapic->wakeup_cpu)
36 extern void setup_apic_routing(void);
37 #else
38 #define INT_DELIVERY_MODE dest_LowestPrio
39 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */
40 #define TARGET_CPUS (target_cpus())
41 #define wakeup_secondary_cpu wakeup_secondary_cpu_via_init
42 /*
43  * Set up the logical destination ID.
44  *
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...
48  */
49 static inline void init_apic_ldr(void)
50 {
51         unsigned long val;
52
53         apic_write(APIC_DFR, APIC_DFR_VALUE);
54         val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
55         val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
56         apic_write(APIC_LDR, val);
57 }
58
59 static inline int apic_id_registered(void)
60 {
61         return physid_isset(read_apic_id(), phys_cpu_present_map);
62 }
63
64 static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
65 {
66         return cpus_addr(cpumask)[0];
67 }
68
69 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
70 {
71         return cpuid_apic >> index_msb;
72 }
73
74 static inline void setup_apic_routing(void)
75 {
76 #ifdef CONFIG_X86_IO_APIC
77         printk("Enabling APIC mode:  %s.  Using %d I/O APICs\n",
78                                         "Flat", nr_ioapics);
79 #endif
80 }
81
82 static inline int apicid_to_node(int logical_apicid)
83 {
84 #ifdef CONFIG_SMP
85         return apicid_2_node[hard_smp_processor_id()];
86 #else
87         return 0;
88 #endif
89 }
90
91 static inline cpumask_t vector_allocation_domain(int cpu)
92 {
93         /* Careful. Some cpus do not strictly honor the set of cpus
94          * specified in the interrupt destination when using lowest
95          * priority interrupt delivery mode.
96          *
97          * In particular there was a hyperthreading cpu observed to
98          * deliver interrupts to the wrong hyperthread when only one
99          * hyperthread was specified in the interrupt desitination.
100          */
101         cpumask_t domain = { { [0] = APIC_ALL_CPUS, } };
102         return domain;
103 }
104 #endif
105
106 static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
107 {
108         return physid_isset(apicid, bitmap);
109 }
110
111 static inline unsigned long check_apicid_present(int bit)
112 {
113         return physid_isset(bit, phys_cpu_present_map);
114 }
115
116 static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
117 {
118         return phys_map;
119 }
120
121 static inline int multi_timer_check(int apic, int irq)
122 {
123         return 0;
124 }
125
126 /* Mapping from cpu number to logical apicid */
127 static inline int cpu_to_logical_apicid(int cpu)
128 {
129         return 1 << cpu;
130 }
131
132 static inline int cpu_present_to_apicid(int mps_cpu)
133 {
134         if (mps_cpu < NR_CPUS && cpu_present(mps_cpu))
135                 return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
136         else
137                 return BAD_APICID;
138 }
139
140 static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
141 {
142         return physid_mask_of_physid(phys_apicid);
143 }
144
145 static inline void setup_portio_remap(void)
146 {
147 }
148
149 static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
150 {
151         return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
152 }
153
154 static inline void enable_apic_mode(void)
155 {
156 }
157 #endif /* CONFIG_X86_LOCAL_APIC */
158 #endif /* _ASM_X86_MACH_DEFAULT_MACH_APIC_H */