diff options
Diffstat (limited to 'include/asm-ia64/smp.h')
-rw-r--r-- | include/asm-ia64/smp.h | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h deleted file mode 100644 index 12d96e0cd513..000000000000 --- a/include/asm-ia64/smp.h +++ /dev/null | |||
@@ -1,138 +0,0 @@ | |||
1 | /* | ||
2 | * SMP Support | ||
3 | * | ||
4 | * Copyright (C) 1999 VA Linux Systems | ||
5 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> | ||
6 | * (c) Copyright 2001-2003, 2005 Hewlett-Packard Development Company, L.P. | ||
7 | * David Mosberger-Tang <davidm@hpl.hp.com> | ||
8 | * Bjorn Helgaas <bjorn.helgaas@hp.com> | ||
9 | */ | ||
10 | #ifndef _ASM_IA64_SMP_H | ||
11 | #define _ASM_IA64_SMP_H | ||
12 | |||
13 | #include <linux/init.h> | ||
14 | #include <linux/threads.h> | ||
15 | #include <linux/kernel.h> | ||
16 | #include <linux/cpumask.h> | ||
17 | #include <linux/bitops.h> | ||
18 | #include <linux/irqreturn.h> | ||
19 | |||
20 | #include <asm/io.h> | ||
21 | #include <asm/param.h> | ||
22 | #include <asm/processor.h> | ||
23 | #include <asm/ptrace.h> | ||
24 | |||
25 | static inline unsigned int | ||
26 | ia64_get_lid (void) | ||
27 | { | ||
28 | union { | ||
29 | struct { | ||
30 | unsigned long reserved : 16; | ||
31 | unsigned long eid : 8; | ||
32 | unsigned long id : 8; | ||
33 | unsigned long ignored : 32; | ||
34 | } f; | ||
35 | unsigned long bits; | ||
36 | } lid; | ||
37 | |||
38 | lid.bits = ia64_getreg(_IA64_REG_CR_LID); | ||
39 | return lid.f.id << 8 | lid.f.eid; | ||
40 | } | ||
41 | |||
42 | #define hard_smp_processor_id() ia64_get_lid() | ||
43 | |||
44 | #ifdef CONFIG_SMP | ||
45 | |||
46 | #define XTP_OFFSET 0x1e0008 | ||
47 | |||
48 | #define SMP_IRQ_REDIRECTION (1 << 0) | ||
49 | #define SMP_IPI_REDIRECTION (1 << 1) | ||
50 | |||
51 | #define raw_smp_processor_id() (current_thread_info()->cpu) | ||
52 | |||
53 | extern struct smp_boot_data { | ||
54 | int cpu_count; | ||
55 | int cpu_phys_id[NR_CPUS]; | ||
56 | } smp_boot_data __initdata; | ||
57 | |||
58 | extern char no_int_routing __devinitdata; | ||
59 | |||
60 | extern cpumask_t cpu_online_map; | ||
61 | extern cpumask_t cpu_core_map[NR_CPUS]; | ||
62 | DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); | ||
63 | extern int smp_num_siblings; | ||
64 | extern void __iomem *ipi_base_addr; | ||
65 | extern unsigned char smp_int_redirect; | ||
66 | |||
67 | extern volatile int ia64_cpu_to_sapicid[]; | ||
68 | #define cpu_physical_id(i) ia64_cpu_to_sapicid[i] | ||
69 | |||
70 | extern unsigned long ap_wakeup_vector; | ||
71 | |||
72 | /* | ||
73 | * Function to map hard smp processor id to logical id. Slow, so don't use this in | ||
74 | * performance-critical code. | ||
75 | */ | ||
76 | static inline int | ||
77 | cpu_logical_id (int cpuid) | ||
78 | { | ||
79 | int i; | ||
80 | |||
81 | for (i = 0; i < NR_CPUS; ++i) | ||
82 | if (cpu_physical_id(i) == cpuid) | ||
83 | break; | ||
84 | return i; | ||
85 | } | ||
86 | |||
87 | /* | ||
88 | * XTP control functions: | ||
89 | * min_xtp : route all interrupts to this CPU | ||
90 | * normal_xtp: nominal XTP value | ||
91 | * max_xtp : never deliver interrupts to this CPU. | ||
92 | */ | ||
93 | |||
94 | static inline void | ||
95 | min_xtp (void) | ||
96 | { | ||
97 | if (smp_int_redirect & SMP_IRQ_REDIRECTION) | ||
98 | writeb(0x00, ipi_base_addr + XTP_OFFSET); /* XTP to min */ | ||
99 | } | ||
100 | |||
101 | static inline void | ||
102 | normal_xtp (void) | ||
103 | { | ||
104 | if (smp_int_redirect & SMP_IRQ_REDIRECTION) | ||
105 | writeb(0x08, ipi_base_addr + XTP_OFFSET); /* XTP normal */ | ||
106 | } | ||
107 | |||
108 | static inline void | ||
109 | max_xtp (void) | ||
110 | { | ||
111 | if (smp_int_redirect & SMP_IRQ_REDIRECTION) | ||
112 | writeb(0x0f, ipi_base_addr + XTP_OFFSET); /* Set XTP to max */ | ||
113 | } | ||
114 | |||
115 | /* Upping and downing of CPUs */ | ||
116 | extern int __cpu_disable (void); | ||
117 | extern void __cpu_die (unsigned int cpu); | ||
118 | extern void cpu_die (void) __attribute__ ((noreturn)); | ||
119 | extern void __init smp_build_cpu_map(void); | ||
120 | |||
121 | extern void __init init_smp_config (void); | ||
122 | extern void smp_do_timer (struct pt_regs *regs); | ||
123 | |||
124 | extern irqreturn_t handle_IPI(int irq, void *dev_id); | ||
125 | extern void smp_send_reschedule (int cpu); | ||
126 | extern void identify_siblings (struct cpuinfo_ia64 *); | ||
127 | extern int is_multithreading_enabled(void); | ||
128 | |||
129 | extern void arch_send_call_function_single_ipi(int cpu); | ||
130 | extern void arch_send_call_function_ipi(cpumask_t mask); | ||
131 | |||
132 | #else /* CONFIG_SMP */ | ||
133 | |||
134 | #define cpu_logical_id(i) 0 | ||
135 | #define cpu_physical_id(i) ia64_get_lid() | ||
136 | |||
137 | #endif /* CONFIG_SMP */ | ||
138 | #endif /* _ASM_IA64_SMP_H */ | ||