diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
commit | 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch) | |
tree | d947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/mach-summit/mach_apic.h | |
parent | 27bd0c955648646abf2a353a8371d28c37bcd982 (diff) |
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/mach-summit/mach_apic.h')
-rw-r--r-- | include/asm-x86/mach-summit/mach_apic.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/include/asm-x86/mach-summit/mach_apic.h b/include/asm-x86/mach-summit/mach_apic.h new file mode 100644 index 000000000000..732f776aab8e --- /dev/null +++ b/include/asm-x86/mach-summit/mach_apic.h | |||
@@ -0,0 +1,197 @@ | |||
1 | #ifndef __ASM_MACH_APIC_H | ||
2 | #define __ASM_MACH_APIC_H | ||
3 | |||
4 | #include <asm/smp.h> | ||
5 | |||
6 | #define esr_disable (1) | ||
7 | #define NO_BALANCE_IRQ (0) | ||
8 | |||
9 | /* In clustered mode, the high nibble of APIC ID is a cluster number. | ||
10 | * The low nibble is a 4-bit bitmap. */ | ||
11 | #define XAPIC_DEST_CPUS_SHIFT 4 | ||
12 | #define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1) | ||
13 | #define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT) | ||
14 | |||
15 | #define APIC_DFR_VALUE (APIC_DFR_CLUSTER) | ||
16 | |||
17 | static inline cpumask_t target_cpus(void) | ||
18 | { | ||
19 | /* CPU_MASK_ALL (0xff) has undefined behaviour with | ||
20 | * dest_LowestPrio mode logical clustered apic interrupt routing | ||
21 | * Just start on cpu 0. IRQ balancing will spread load | ||
22 | */ | ||
23 | return cpumask_of_cpu(0); | ||
24 | } | ||
25 | #define TARGET_CPUS (target_cpus()) | ||
26 | |||
27 | #define INT_DELIVERY_MODE (dest_LowestPrio) | ||
28 | #define INT_DEST_MODE 1 /* logical delivery broadcast to all procs */ | ||
29 | |||
30 | static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid) | ||
31 | { | ||
32 | return 0; | ||
33 | } | ||
34 | |||
35 | /* we don't use the phys_cpu_present_map to indicate apicid presence */ | ||
36 | static inline unsigned long check_apicid_present(int bit) | ||
37 | { | ||
38 | return 1; | ||
39 | } | ||
40 | |||
41 | #define apicid_cluster(apicid) ((apicid) & XAPIC_DEST_CLUSTER_MASK) | ||
42 | |||
43 | extern u8 bios_cpu_apicid[]; | ||
44 | extern u8 cpu_2_logical_apicid[]; | ||
45 | |||
46 | static inline void init_apic_ldr(void) | ||
47 | { | ||
48 | unsigned long val, id; | ||
49 | int count = 0; | ||
50 | u8 my_id = (u8)hard_smp_processor_id(); | ||
51 | u8 my_cluster = (u8)apicid_cluster(my_id); | ||
52 | #ifdef CONFIG_SMP | ||
53 | u8 lid; | ||
54 | int i; | ||
55 | |||
56 | /* Create logical APIC IDs by counting CPUs already in cluster. */ | ||
57 | for (count = 0, i = NR_CPUS; --i >= 0; ) { | ||
58 | lid = cpu_2_logical_apicid[i]; | ||
59 | if (lid != BAD_APICID && apicid_cluster(lid) == my_cluster) | ||
60 | ++count; | ||
61 | } | ||
62 | #endif | ||
63 | /* We only have a 4 wide bitmap in cluster mode. If a deranged | ||
64 | * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */ | ||
65 | BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT); | ||
66 | id = my_cluster | (1UL << count); | ||
67 | apic_write_around(APIC_DFR, APIC_DFR_VALUE); | ||
68 | val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; | ||
69 | val |= SET_APIC_LOGICAL_ID(id); | ||
70 | apic_write_around(APIC_LDR, val); | ||
71 | } | ||
72 | |||
73 | static inline int multi_timer_check(int apic, int irq) | ||
74 | { | ||
75 | return 0; | ||
76 | } | ||
77 | |||
78 | static inline int apic_id_registered(void) | ||
79 | { | ||
80 | return 1; | ||
81 | } | ||
82 | |||
83 | static inline void setup_apic_routing(void) | ||
84 | { | ||
85 | printk("Enabling APIC mode: Summit. Using %d I/O APICs\n", | ||
86 | nr_ioapics); | ||
87 | } | ||
88 | |||
89 | static inline int apicid_to_node(int logical_apicid) | ||
90 | { | ||
91 | #ifdef CONFIG_SMP | ||
92 | return apicid_2_node[hard_smp_processor_id()]; | ||
93 | #else | ||
94 | return 0; | ||
95 | #endif | ||
96 | } | ||
97 | |||
98 | /* Mapping from cpu number to logical apicid */ | ||
99 | static inline int cpu_to_logical_apicid(int cpu) | ||
100 | { | ||
101 | #ifdef CONFIG_SMP | ||
102 | if (cpu >= NR_CPUS) | ||
103 | return BAD_APICID; | ||
104 | return (int)cpu_2_logical_apicid[cpu]; | ||
105 | #else | ||
106 | return logical_smp_processor_id(); | ||
107 | #endif | ||
108 | } | ||
109 | |||
110 | static inline int cpu_present_to_apicid(int mps_cpu) | ||
111 | { | ||
112 | if (mps_cpu < NR_CPUS) | ||
113 | return (int)bios_cpu_apicid[mps_cpu]; | ||
114 | else | ||
115 | return BAD_APICID; | ||
116 | } | ||
117 | |||
118 | static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_id_map) | ||
119 | { | ||
120 | /* For clustered we don't have a good way to do this yet - hack */ | ||
121 | return physids_promote(0x0F); | ||
122 | } | ||
123 | |||
124 | static inline physid_mask_t apicid_to_cpu_present(int apicid) | ||
125 | { | ||
126 | return physid_mask_of_physid(0); | ||
127 | } | ||
128 | |||
129 | static inline int mpc_apic_id(struct mpc_config_processor *m, | ||
130 | struct mpc_config_translation *translation_record) | ||
131 | { | ||
132 | printk("Processor #%d %ld:%ld APIC version %d\n", | ||
133 | m->mpc_apicid, | ||
134 | (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8, | ||
135 | (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4, | ||
136 | m->mpc_apicver); | ||
137 | return (m->mpc_apicid); | ||
138 | } | ||
139 | |||
140 | static inline void setup_portio_remap(void) | ||
141 | { | ||
142 | } | ||
143 | |||
144 | static inline int check_phys_apicid_present(int boot_cpu_physical_apicid) | ||
145 | { | ||
146 | return 1; | ||
147 | } | ||
148 | |||
149 | static inline void enable_apic_mode(void) | ||
150 | { | ||
151 | } | ||
152 | |||
153 | static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask) | ||
154 | { | ||
155 | int num_bits_set; | ||
156 | int cpus_found = 0; | ||
157 | int cpu; | ||
158 | int apicid; | ||
159 | |||
160 | num_bits_set = cpus_weight(cpumask); | ||
161 | /* Return id to all */ | ||
162 | if (num_bits_set == NR_CPUS) | ||
163 | return (int) 0xFF; | ||
164 | /* | ||
165 | * The cpus in the mask must all be on the apic cluster. If are not | ||
166 | * on the same apicid cluster return default value of TARGET_CPUS. | ||
167 | */ | ||
168 | cpu = first_cpu(cpumask); | ||
169 | apicid = cpu_to_logical_apicid(cpu); | ||
170 | while (cpus_found < num_bits_set) { | ||
171 | if (cpu_isset(cpu, cpumask)) { | ||
172 | int new_apicid = cpu_to_logical_apicid(cpu); | ||
173 | if (apicid_cluster(apicid) != | ||
174 | apicid_cluster(new_apicid)){ | ||
175 | printk ("%s: Not a valid mask!\n",__FUNCTION__); | ||
176 | return 0xFF; | ||
177 | } | ||
178 | apicid = apicid | new_apicid; | ||
179 | cpus_found++; | ||
180 | } | ||
181 | cpu++; | ||
182 | } | ||
183 | return apicid; | ||
184 | } | ||
185 | |||
186 | /* cpuid returns the value latched in the HW at reset, not the APIC ID | ||
187 | * register's value. For any box whose BIOS changes APIC IDs, like | ||
188 | * clustered APIC systems, we must use hard_smp_processor_id. | ||
189 | * | ||
190 | * See Intel's IA-32 SW Dev's Manual Vol2 under CPUID. | ||
191 | */ | ||
192 | static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb) | ||
193 | { | ||
194 | return hard_smp_processor_id() >> index_msb; | ||
195 | } | ||
196 | |||
197 | #endif /* __ASM_MACH_APIC_H */ | ||