diff options
Diffstat (limited to 'arch/x86/include/asm/numaq/apic.h')
-rw-r--r-- | arch/x86/include/asm/numaq/apic.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/arch/x86/include/asm/numaq/apic.h b/arch/x86/include/asm/numaq/apic.h new file mode 100644 index 00000000000..0bf2a06b7a4 --- /dev/null +++ b/arch/x86/include/asm/numaq/apic.h | |||
@@ -0,0 +1,136 @@ | |||
1 | #ifndef __ASM_NUMAQ_APIC_H | ||
2 | #define __ASM_NUMAQ_APIC_H | ||
3 | |||
4 | #include <asm/io.h> | ||
5 | #include <linux/mmzone.h> | ||
6 | #include <linux/nodemask.h> | ||
7 | |||
8 | #define APIC_DFR_VALUE (APIC_DFR_CLUSTER) | ||
9 | |||
10 | static inline cpumask_t target_cpus(void) | ||
11 | { | ||
12 | return CPU_MASK_ALL; | ||
13 | } | ||
14 | |||
15 | #define NO_BALANCE_IRQ (1) | ||
16 | #define esr_disable (1) | ||
17 | |||
18 | #define INT_DELIVERY_MODE dest_LowestPrio | ||
19 | #define INT_DEST_MODE 0 /* physical delivery on LOCAL quad */ | ||
20 | |||
21 | static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid) | ||
22 | { | ||
23 | return physid_isset(apicid, bitmap); | ||
24 | } | ||
25 | static inline unsigned long check_apicid_present(int bit) | ||
26 | { | ||
27 | return physid_isset(bit, phys_cpu_present_map); | ||
28 | } | ||
29 | #define apicid_cluster(apicid) (apicid & 0xF0) | ||
30 | |||
31 | static inline int apic_id_registered(void) | ||
32 | { | ||
33 | return 1; | ||
34 | } | ||
35 | |||
36 | static inline void init_apic_ldr(void) | ||
37 | { | ||
38 | /* Already done in NUMA-Q firmware */ | ||
39 | } | ||
40 | |||
41 | static inline void setup_apic_routing(void) | ||
42 | { | ||
43 | printk("Enabling APIC mode: %s. Using %d I/O APICs\n", | ||
44 | "NUMA-Q", nr_ioapics); | ||
45 | } | ||
46 | |||
47 | /* | ||
48 | * Skip adding the timer int on secondary nodes, which causes | ||
49 | * a small but painful rift in the time-space continuum. | ||
50 | */ | ||
51 | static inline int multi_timer_check(int apic, int irq) | ||
52 | { | ||
53 | return apic != 0 && irq == 0; | ||
54 | } | ||
55 | |||
56 | static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map) | ||
57 | { | ||
58 | /* We don't have a good way to do this yet - hack */ | ||
59 | return physids_promote(0xFUL); | ||
60 | } | ||
61 | |||
62 | /* Mapping from cpu number to logical apicid */ | ||
63 | extern u8 cpu_2_logical_apicid[]; | ||
64 | static inline int cpu_to_logical_apicid(int cpu) | ||
65 | { | ||
66 | if (cpu >= NR_CPUS) | ||
67 | return BAD_APICID; | ||
68 | return (int)cpu_2_logical_apicid[cpu]; | ||
69 | } | ||
70 | |||
71 | /* | ||
72 | * Supporting over 60 cpus on NUMA-Q requires a locality-dependent | ||
73 | * cpu to APIC ID relation to properly interact with the intelligent | ||
74 | * mode of the cluster controller. | ||
75 | */ | ||
76 | static inline int cpu_present_to_apicid(int mps_cpu) | ||
77 | { | ||
78 | if (mps_cpu < 60) | ||
79 | return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3)); | ||
80 | else | ||
81 | return BAD_APICID; | ||
82 | } | ||
83 | |||
84 | static inline int apicid_to_node(int logical_apicid) | ||
85 | { | ||
86 | return logical_apicid >> 4; | ||
87 | } | ||
88 | |||
89 | static inline physid_mask_t apicid_to_cpu_present(int logical_apicid) | ||
90 | { | ||
91 | int node = apicid_to_node(logical_apicid); | ||
92 | int cpu = __ffs(logical_apicid & 0xf); | ||
93 | |||
94 | return physid_mask_of_physid(cpu + 4*node); | ||
95 | } | ||
96 | |||
97 | extern void *xquad_portio; | ||
98 | |||
99 | static inline void setup_portio_remap(void) | ||
100 | { | ||
101 | int num_quads = num_online_nodes(); | ||
102 | |||
103 | if (num_quads <= 1) | ||
104 | return; | ||
105 | |||
106 | printk("Remapping cross-quad port I/O for %d quads\n", num_quads); | ||
107 | xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD); | ||
108 | printk("xquad_portio vaddr 0x%08lx, len %08lx\n", | ||
109 | (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD); | ||
110 | } | ||
111 | |||
112 | static inline int check_phys_apicid_present(int boot_cpu_physical_apicid) | ||
113 | { | ||
114 | return (1); | ||
115 | } | ||
116 | |||
117 | static inline void enable_apic_mode(void) | ||
118 | { | ||
119 | } | ||
120 | |||
121 | /* | ||
122 | * We use physical apicids here, not logical, so just return the default | ||
123 | * physical broadcast to stop people from breaking us | ||
124 | */ | ||
125 | static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask) | ||
126 | { | ||
127 | return (int) 0xF; | ||
128 | } | ||
129 | |||
130 | /* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */ | ||
131 | static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb) | ||
132 | { | ||
133 | return cpuid_apic >> index_msb; | ||
134 | } | ||
135 | |||
136 | #endif /* __ASM_NUMAQ_APIC_H */ | ||