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authorRalf Baechle <ralf@linux-mips.org>2007-11-19 07:23:51 -0500
committerRalf Baechle <ralf@linux-mips.org>2008-01-29 05:14:57 -0500
commit87353d8ac39c52784da605ecbe965ecdfad609ad (patch)
treec95ce7cbe9b099c21cab71a195621801b04bc05a /arch/mips/kernel/smp.c
parent19388fb092d89e179575bd0b44f51b57e175edf5 (diff)
[MIPS] SMP: Call platform methods via ops structure.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/smp.c')
-rw-r--r--arch/mips/kernel/smp.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 335be9bcf0dc..1e5dfc28294a 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -37,7 +37,6 @@
37#include <asm/processor.h> 37#include <asm/processor.h>
38#include <asm/system.h> 38#include <asm/system.h>
39#include <asm/mmu_context.h> 39#include <asm/mmu_context.h>
40#include <asm/smp.h>
41#include <asm/time.h> 40#include <asm/time.h>
42 41
43#ifdef CONFIG_MIPS_MT_SMTC 42#ifdef CONFIG_MIPS_MT_SMTC
@@ -84,6 +83,16 @@ static inline void set_cpu_sibling_map(int cpu)
84 cpu_set(cpu, cpu_sibling_map[cpu]); 83 cpu_set(cpu, cpu_sibling_map[cpu]);
85} 84}
86 85
86struct plat_smp_ops *mp_ops;
87
88__cpuinit void register_smp_ops(struct plat_smp_ops *ops)
89{
90 if (ops)
91 printk(KERN_WARNING "Overriding previous set SMP ops\n");
92
93 mp_ops = ops;
94}
95
87/* 96/*
88 * First C code run on the secondary CPUs after being started up by 97 * First C code run on the secondary CPUs after being started up by
89 * the master. 98 * the master.
@@ -100,7 +109,7 @@ asmlinkage __cpuinit void start_secondary(void)
100 cpu_report(); 109 cpu_report();
101 per_cpu_trap_init(); 110 per_cpu_trap_init();
102 mips_clockevent_init(); 111 mips_clockevent_init();
103 prom_init_secondary(); 112 mp_ops->init_secondary();
104 113
105 /* 114 /*
106 * XXX parity protection should be folded in here when it's converted 115 * XXX parity protection should be folded in here when it's converted
@@ -112,7 +121,7 @@ asmlinkage __cpuinit void start_secondary(void)
112 cpu = smp_processor_id(); 121 cpu = smp_processor_id();
113 cpu_data[cpu].udelay_val = loops_per_jiffy; 122 cpu_data[cpu].udelay_val = loops_per_jiffy;
114 123
115 prom_smp_finish(); 124 mp_ops->smp_finish();
116 set_cpu_sibling_map(cpu); 125 set_cpu_sibling_map(cpu);
117 126
118 cpu_set(cpu, cpu_callin_map); 127 cpu_set(cpu, cpu_callin_map);
@@ -184,7 +193,7 @@ int smp_call_function_mask(cpumask_t mask, void (*func) (void *info),
184 smp_mb(); 193 smp_mb();
185 194
186 /* Send a message to all other CPUs and wait for them to respond */ 195 /* Send a message to all other CPUs and wait for them to respond */
187 core_send_ipi_mask(mask, SMP_CALL_FUNCTION); 196 mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
188 197
189 /* Wait for response */ 198 /* Wait for response */
190 /* FIXME: lock-up detection, backtrace on lock-up */ 199 /* FIXME: lock-up detection, backtrace on lock-up */
@@ -278,7 +287,7 @@ void smp_send_stop(void)
278 287
279void __init smp_cpus_done(unsigned int max_cpus) 288void __init smp_cpus_done(unsigned int max_cpus)
280{ 289{
281 prom_cpus_done(); 290 mp_ops->cpus_done();
282} 291}
283 292
284/* called from main before smp_init() */ 293/* called from main before smp_init() */
@@ -286,7 +295,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
286{ 295{
287 init_new_context(current, &init_mm); 296 init_new_context(current, &init_mm);
288 current_thread_info()->cpu = 0; 297 current_thread_info()->cpu = 0;
289 plat_prepare_cpus(max_cpus); 298 mp_ops->prepare_cpus(max_cpus);
290 set_cpu_sibling_map(0); 299 set_cpu_sibling_map(0);
291#ifndef CONFIG_HOTPLUG_CPU 300#ifndef CONFIG_HOTPLUG_CPU
292 cpu_present_map = cpu_possible_map; 301 cpu_present_map = cpu_possible_map;
@@ -325,7 +334,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
325 if (IS_ERR(idle)) 334 if (IS_ERR(idle))
326 panic(KERN_ERR "Fork failed for CPU %d", cpu); 335 panic(KERN_ERR "Fork failed for CPU %d", cpu);
327 336
328 prom_boot_secondary(cpu, idle); 337 mp_ops->boot_secondary(cpu, idle);
329 338
330 /* 339 /*
331 * Trust is futile. We should really have timeouts ... 340 * Trust is futile. We should really have timeouts ...