1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
#ifndef __ASM_MACH_APIC_H
#define __ASM_MACH_APIC_H
#define xapic_phys_to_log_apicid(cpu) (per_cpu(x86_bios_cpu_apicid, cpu))
static inline int bigsmp_apic_id_registered(void)
{
return 1;
}
static inline const cpumask_t *bigsmp_target_cpus(void)
{
#ifdef CONFIG_SMP
return &cpu_online_map;
#else
return &cpumask_of_cpu(0);
#endif
}
#define APIC_DFR_VALUE (APIC_DFR_FLAT)
static inline unsigned long
bigsmp_check_apicid_used(physid_mask_t bitmap, int apicid)
{
return 0;
}
static inline unsigned long bigsmp_check_apicid_present(int bit)
{
return 1;
}
static inline unsigned long calculate_ldr(int cpu)
{
unsigned long val, id;
val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
id = xapic_phys_to_log_apicid(cpu);
val |= SET_APIC_LOGICAL_ID(id);
return val;
}
/*
* Set up the logical destination ID.
*
* Intel recommends to set DFR, LDR and TPR before enabling
* an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
* document number 292116). So here it goes...
*/
static inline void bigsmp_init_apic_ldr(void)
{
unsigned long val;
int cpu = smp_processor_id();
apic_write(APIC_DFR, APIC_DFR_VALUE);
val = calculate_ldr(cpu);
apic_write(APIC_LDR, val);
}
static inline void bigsmp_setup_apic_routing(void)
{
printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
"Physflat", nr_ioapics);
}
static inline int bigsmp_apicid_to_node(int logical_apicid)
{
return apicid_2_node[hard_smp_processor_id()];
}
static inline int bigsmp_cpu_present_to_apicid(int mps_cpu)
{
if (mps_cpu < nr_cpu_ids)
return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
return BAD_APICID;
}
static inline physid_mask_t bigsmp_apicid_to_cpu_present(int phys_apicid)
{
return physid_mask_of_physid(phys_apicid);
}
extern u8 cpu_2_logical_apicid[];
/* Mapping from cpu number to logical apicid */
static inline int bigsmp_cpu_to_logical_apicid(int cpu)
{
if (cpu >= nr_cpu_ids)
return BAD_APICID;
return cpu_physical_id(cpu);
}
static inline physid_mask_t bigsmp_ioapic_phys_id_map(physid_mask_t phys_map)
{
/* For clustered we don't have a good way to do this yet - hack */
return physids_promote(0xFFL);
}
static inline void bigsmp_setup_portio_remap(void)
{
}
static inline int bigsmp_check_phys_apicid_present(int boot_cpu_physical_apicid)
{
return 1;
}
/* As we are using single CPU as destination, pick only one CPU here */
static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
{
int cpu;
int apicid;
cpu = first_cpu(*cpumask);
apicid = bigsmp_cpu_to_logical_apicid(cpu);
return apicid;
}
static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask)
{
int cpu;
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
for_each_cpu_and(cpu, cpumask, andmask)
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
if (cpu < nr_cpu_ids)
return bigsmp_cpu_to_logical_apicid(cpu);
return BAD_APICID;
}
static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
{
return cpuid_apic >> index_msb;
}
#endif /* __ASM_MACH_APIC_H */
|
