diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2007-11-19 07:23:51 -0500 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2008-01-29 05:14:57 -0500 |
commit | 87353d8ac39c52784da605ecbe965ecdfad609ad (patch) | |
tree | c95ce7cbe9b099c21cab71a195621801b04bc05a /arch/mips | |
parent | 19388fb092d89e179575bd0b44f51b57e175edf5 (diff) |
[MIPS] SMP: Call platform methods via ops structure.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
24 files changed, 620 insertions, 427 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 8cbdfd255670..b211e7961f28 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig | |||
@@ -1441,6 +1441,7 @@ config MIPS_MT_SMP | |||
1441 | select SMP | 1441 | select SMP |
1442 | select SYS_SUPPORTS_SCHED_SMT if SMP | 1442 | select SYS_SUPPORTS_SCHED_SMT if SMP |
1443 | select SYS_SUPPORTS_SMP | 1443 | select SYS_SUPPORTS_SMP |
1444 | select SMP_UP | ||
1444 | help | 1445 | help |
1445 | This is a kernel model which is also known a VSMP or lately | 1446 | This is a kernel model which is also known a VSMP or lately |
1446 | has been marketesed into SMVP. | 1447 | has been marketesed into SMVP. |
@@ -1457,6 +1458,7 @@ config MIPS_MT_SMTC | |||
1457 | select NR_CPUS_DEFAULT_8 | 1458 | select NR_CPUS_DEFAULT_8 |
1458 | select SMP | 1459 | select SMP |
1459 | select SYS_SUPPORTS_SMP | 1460 | select SYS_SUPPORTS_SMP |
1461 | select SMP_UP | ||
1460 | help | 1462 | help |
1461 | This is a kernel model which is known a SMTC or lately has been | 1463 | This is a kernel model which is known a SMTC or lately has been |
1462 | marketesed into SMVP. | 1464 | marketesed into SMVP. |
@@ -1735,6 +1737,9 @@ config SMP | |||
1735 | 1737 | ||
1736 | If you don't know what to do here, say N. | 1738 | If you don't know what to do here, say N. |
1737 | 1739 | ||
1740 | config SMP_UP | ||
1741 | bool | ||
1742 | |||
1738 | config SYS_SUPPORTS_SMP | 1743 | config SYS_SUPPORTS_SMP |
1739 | bool | 1744 | bool |
1740 | 1745 | ||
diff --git a/arch/mips/fw/arc/init.c b/arch/mips/fw/arc/init.c index e2f75b13312f..3ad8788b6eaa 100644 --- a/arch/mips/fw/arc/init.c +++ b/arch/mips/fw/arc/init.c | |||
@@ -12,6 +12,7 @@ | |||
12 | 12 | ||
13 | #include <asm/bootinfo.h> | 13 | #include <asm/bootinfo.h> |
14 | #include <asm/sgialib.h> | 14 | #include <asm/sgialib.h> |
15 | #include <asm/smp-ops.h> | ||
15 | 16 | ||
16 | #undef DEBUG_PROM_INIT | 17 | #undef DEBUG_PROM_INIT |
17 | 18 | ||
@@ -48,4 +49,11 @@ void __init prom_init(void) | |||
48 | ArcRead(0, &c, 1, &cnt); | 49 | ArcRead(0, &c, 1, &cnt); |
49 | ArcEnterInteractiveMode(); | 50 | ArcEnterInteractiveMode(); |
50 | #endif | 51 | #endif |
52 | #ifdef CONFIG_SGI_IP27 | ||
53 | { | ||
54 | extern struct plat_smp_ops ip27_smp_ops; | ||
55 | |||
56 | register_smp_ops(&ip27_smp_ops); | ||
57 | } | ||
58 | #endif | ||
51 | } | 59 | } |
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c index 3d6b1ec1f328..640fb0cc6e39 100644 --- a/arch/mips/kernel/mips-mt.c +++ b/arch/mips/kernel/mips-mt.c | |||
@@ -17,7 +17,6 @@ | |||
17 | #include <asm/system.h> | 17 | #include <asm/system.h> |
18 | #include <asm/hardirq.h> | 18 | #include <asm/hardirq.h> |
19 | #include <asm/mmu_context.h> | 19 | #include <asm/mmu_context.h> |
20 | #include <asm/smp.h> | ||
21 | #include <asm/mipsmtregs.h> | 20 | #include <asm/mipsmtregs.h> |
22 | #include <asm/r4kcache.h> | 21 | #include <asm/r4kcache.h> |
23 | #include <asm/cacheflush.h> | 22 | #include <asm/cacheflush.h> |
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 7b4418dd5857..269c252d956f 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c | |||
@@ -29,6 +29,7 @@ | |||
29 | #include <asm/cpu.h> | 29 | #include <asm/cpu.h> |
30 | #include <asm/sections.h> | 30 | #include <asm/sections.h> |
31 | #include <asm/setup.h> | 31 | #include <asm/setup.h> |
32 | #include <asm/smp-ops.h> | ||
32 | #include <asm/system.h> | 33 | #include <asm/system.h> |
33 | 34 | ||
34 | struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly; | 35 | struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly; |
@@ -575,9 +576,7 @@ void __init setup_arch(char **cmdline_p) | |||
575 | arch_mem_init(cmdline_p); | 576 | arch_mem_init(cmdline_p); |
576 | 577 | ||
577 | resource_init(); | 578 | resource_init(); |
578 | #ifdef CONFIG_SMP | ||
579 | plat_smp_setup(); | 579 | plat_smp_setup(); |
580 | #endif | ||
581 | } | 580 | } |
582 | 581 | ||
583 | static int __init fpu_disable(char *s) | 582 | static int __init fpu_disable(char *s) |
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c index 2ab0b7eeaa7e..89e6f6aa5166 100644 --- a/arch/mips/kernel/smp-mt.c +++ b/arch/mips/kernel/smp-mt.c | |||
@@ -215,72 +215,67 @@ static void __init smp_tc_init(unsigned int tc, unsigned int mvpconf0) | |||
215 | write_tc_c0_tchalt(TCHALT_H); | 215 | write_tc_c0_tchalt(TCHALT_H); |
216 | } | 216 | } |
217 | 217 | ||
218 | /* | 218 | static void vsmp_send_ipi_single(int cpu, unsigned int action) |
219 | * Common setup before any secondaries are started | ||
220 | * Make sure all CPU's are in a sensible state before we boot any of the | ||
221 | * secondarys | ||
222 | */ | ||
223 | void __init plat_smp_setup(void) | ||
224 | { | 219 | { |
225 | unsigned int mvpconf0, ntc, tc, ncpu = 0; | 220 | int i; |
226 | unsigned int nvpe; | 221 | unsigned long flags; |
222 | int vpflags; | ||
227 | 223 | ||
228 | #ifdef CONFIG_MIPS_MT_FPAFF | 224 | local_irq_save(flags); |
229 | /* If we have an FPU, enroll ourselves in the FPU-full mask */ | ||
230 | if (cpu_has_fpu) | ||
231 | cpu_set(0, mt_fpu_cpumask); | ||
232 | #endif /* CONFIG_MIPS_MT_FPAFF */ | ||
233 | if (!cpu_has_mipsmt) | ||
234 | return; | ||
235 | 225 | ||
236 | /* disable MT so we can configure */ | 226 | vpflags = dvpe(); /* cant access the other CPU's registers whilst MVPE enabled */ |
237 | dvpe(); | ||
238 | dmt(); | ||
239 | 227 | ||
240 | /* Put MVPE's into 'configuration state' */ | 228 | switch (action) { |
241 | set_c0_mvpcontrol(MVPCONTROL_VPC); | 229 | case SMP_CALL_FUNCTION: |
230 | i = C_SW1; | ||
231 | break; | ||
242 | 232 | ||
243 | mvpconf0 = read_c0_mvpconf0(); | 233 | case SMP_RESCHEDULE_YOURSELF: |
244 | ntc = (mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT; | 234 | default: |
235 | i = C_SW0; | ||
236 | break; | ||
237 | } | ||
245 | 238 | ||
246 | nvpe = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1; | 239 | /* 1:1 mapping of vpe and tc... */ |
247 | smp_num_siblings = nvpe; | 240 | settc(cpu); |
241 | write_vpe_c0_cause(read_vpe_c0_cause() | i); | ||
242 | evpe(vpflags); | ||
248 | 243 | ||
249 | /* we'll always have more TC's than VPE's, so loop setting everything | 244 | local_irq_restore(flags); |
250 | to a sensible state */ | 245 | } |
251 | for (tc = 0; tc <= ntc; tc++) { | ||
252 | settc(tc); | ||
253 | 246 | ||
254 | smp_tc_init(tc, mvpconf0); | 247 | static void vsmp_send_ipi_mask(cpumask_t mask, unsigned int action) |
255 | ncpu = smp_vpe_init(tc, mvpconf0, ncpu); | 248 | { |
256 | } | 249 | unsigned int i; |
257 | 250 | ||
258 | /* Release config state */ | 251 | for_each_cpu_mask(i, mask) |
259 | clear_c0_mvpcontrol(MVPCONTROL_VPC); | 252 | vsmp_send_ipi_single(i, action); |
253 | } | ||
260 | 254 | ||
261 | /* We'll wait until starting the secondaries before starting MVPE */ | 255 | static void __cpuinit vsmp_init_secondary(void) |
256 | { | ||
257 | /* Enable per-cpu interrupts */ | ||
262 | 258 | ||
263 | printk(KERN_INFO "Detected %i available secondary CPU(s)\n", ncpu); | 259 | /* This is Malta specific: IPI,performance and timer inetrrupts */ |
260 | write_c0_status((read_c0_status() & ~ST0_IM ) | | ||
261 | (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7)); | ||
264 | } | 262 | } |
265 | 263 | ||
266 | void __init plat_prepare_cpus(unsigned int max_cpus) | 264 | static void __cpuinit vsmp_smp_finish(void) |
267 | { | 265 | { |
268 | mips_mt_set_cpuoptions(); | 266 | write_c0_compare(read_c0_count() + (8* mips_hpt_frequency/HZ)); |
269 | |||
270 | /* set up ipi interrupts */ | ||
271 | if (cpu_has_vint) { | ||
272 | set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch); | ||
273 | set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch); | ||
274 | } | ||
275 | 267 | ||
276 | cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ; | 268 | #ifdef CONFIG_MIPS_MT_FPAFF |
277 | cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ; | 269 | /* If we have an FPU, enroll ourselves in the FPU-full mask */ |
270 | if (cpu_has_fpu) | ||
271 | cpu_set(smp_processor_id(), mt_fpu_cpumask); | ||
272 | #endif /* CONFIG_MIPS_MT_FPAFF */ | ||
278 | 273 | ||
279 | setup_irq(cpu_ipi_resched_irq, &irq_resched); | 274 | local_irq_enable(); |
280 | setup_irq(cpu_ipi_call_irq, &irq_call); | 275 | } |
281 | 276 | ||
282 | set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq); | 277 | static void vsmp_cpus_done(void) |
283 | set_irq_handler(cpu_ipi_call_irq, handle_percpu_irq); | 278 | { |
284 | } | 279 | } |
285 | 280 | ||
286 | /* | 281 | /* |
@@ -291,7 +286,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus) | |||
291 | * (unsigned long)idle->thread_info the gp | 286 | * (unsigned long)idle->thread_info the gp |
292 | * assumes a 1:1 mapping of TC => VPE | 287 | * assumes a 1:1 mapping of TC => VPE |
293 | */ | 288 | */ |
294 | void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | 289 | static void __cpuinit vsmp_boot_secondary(int cpu, struct task_struct *idle) |
295 | { | 290 | { |
296 | struct thread_info *gp = task_thread_info(idle); | 291 | struct thread_info *gp = task_thread_info(idle); |
297 | dvpe(); | 292 | dvpe(); |
@@ -325,57 +320,81 @@ void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | |||
325 | evpe(EVPE_ENABLE); | 320 | evpe(EVPE_ENABLE); |
326 | } | 321 | } |
327 | 322 | ||
328 | void __cpuinit prom_init_secondary(void) | 323 | /* |
329 | { | 324 | * Common setup before any secondaries are started |
330 | /* Enable per-cpu interrupts */ | 325 | * Make sure all CPU's are in a sensible state before we boot any of the |
331 | 326 | * secondarys | |
332 | /* This is Malta specific: IPI,performance and timer inetrrupts */ | 327 | */ |
333 | write_c0_status((read_c0_status() & ~ST0_IM ) | | 328 | static void __init vsmp_smp_setup(void) |
334 | (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7)); | ||
335 | } | ||
336 | |||
337 | void __cpuinit prom_smp_finish(void) | ||
338 | { | 329 | { |
339 | write_c0_compare(read_c0_count() + (8* mips_hpt_frequency/HZ)); | 330 | unsigned int mvpconf0, ntc, tc, ncpu = 0; |
331 | unsigned int nvpe; | ||
340 | 332 | ||
341 | #ifdef CONFIG_MIPS_MT_FPAFF | 333 | #ifdef CONFIG_MIPS_MT_FPAFF |
342 | /* If we have an FPU, enroll ourselves in the FPU-full mask */ | 334 | /* If we have an FPU, enroll ourselves in the FPU-full mask */ |
343 | if (cpu_has_fpu) | 335 | if (cpu_has_fpu) |
344 | cpu_set(smp_processor_id(), mt_fpu_cpumask); | 336 | cpu_set(0, mt_fpu_cpumask); |
345 | #endif /* CONFIG_MIPS_MT_FPAFF */ | 337 | #endif /* CONFIG_MIPS_MT_FPAFF */ |
338 | if (!cpu_has_mipsmt) | ||
339 | return; | ||
346 | 340 | ||
347 | local_irq_enable(); | 341 | /* disable MT so we can configure */ |
348 | } | 342 | dvpe(); |
343 | dmt(); | ||
349 | 344 | ||
350 | void prom_cpus_done(void) | 345 | /* Put MVPE's into 'configuration state' */ |
351 | { | 346 | set_c0_mvpcontrol(MVPCONTROL_VPC); |
352 | } | ||
353 | 347 | ||
354 | void core_send_ipi(int cpu, unsigned int action) | 348 | mvpconf0 = read_c0_mvpconf0(); |
355 | { | 349 | ntc = (mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT; |
356 | int i; | ||
357 | unsigned long flags; | ||
358 | int vpflags; | ||
359 | 350 | ||
360 | local_irq_save(flags); | 351 | nvpe = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1; |
352 | smp_num_siblings = nvpe; | ||
361 | 353 | ||
362 | vpflags = dvpe(); /* cant access the other CPU's registers whilst MVPE enabled */ | 354 | /* we'll always have more TC's than VPE's, so loop setting everything |
355 | to a sensible state */ | ||
356 | for (tc = 0; tc <= ntc; tc++) { | ||
357 | settc(tc); | ||
363 | 358 | ||
364 | switch (action) { | 359 | smp_tc_init(tc, mvpconf0); |
365 | case SMP_CALL_FUNCTION: | 360 | ncpu = smp_vpe_init(tc, mvpconf0, ncpu); |
366 | i = C_SW1; | 361 | } |
367 | break; | ||
368 | 362 | ||
369 | case SMP_RESCHEDULE_YOURSELF: | 363 | /* Release config state */ |
370 | default: | 364 | clear_c0_mvpcontrol(MVPCONTROL_VPC); |
371 | i = C_SW0; | 365 | |
372 | break; | 366 | /* We'll wait until starting the secondaries before starting MVPE */ |
367 | |||
368 | printk(KERN_INFO "Detected %i available secondary CPU(s)\n", ncpu); | ||
369 | } | ||
370 | |||
371 | static void __init vsmp_prepare_cpus(unsigned int max_cpus) | ||
372 | { | ||
373 | mips_mt_set_cpuoptions(); | ||
374 | |||
375 | /* set up ipi interrupts */ | ||
376 | if (cpu_has_vint) { | ||
377 | set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch); | ||
378 | set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch); | ||
373 | } | 379 | } |
374 | 380 | ||
375 | /* 1:1 mapping of vpe and tc... */ | 381 | cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ; |
376 | settc(cpu); | 382 | cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ; |
377 | write_vpe_c0_cause(read_vpe_c0_cause() | i); | ||
378 | evpe(vpflags); | ||
379 | 383 | ||
380 | local_irq_restore(flags); | 384 | setup_irq(cpu_ipi_resched_irq, &irq_resched); |
385 | setup_irq(cpu_ipi_call_irq, &irq_call); | ||
386 | |||
387 | set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq); | ||
388 | set_irq_handler(cpu_ipi_call_irq, handle_percpu_irq); | ||
381 | } | 389 | } |
390 | |||
391 | struct plat_smp_ops vsmp_smp_ops = { | ||
392 | .send_ipi_single = vsmp_send_ipi_single, | ||
393 | .send_ipi_mask = vsmp_send_ipi_mask, | ||
394 | .init_secondary = vsmp_init_secondary, | ||
395 | .smp_finish = vsmp_smp_finish, | ||
396 | .cpus_done = vsmp_cpus_done, | ||
397 | .boot_secondary = vsmp_boot_secondary, | ||
398 | .smp_setup = vsmp_smp_setup, | ||
399 | .prepare_cpus = vsmp_prepare_cpus, | ||
400 | }; | ||
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 | ||
86 | struct 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 | ||
279 | void __init smp_cpus_done(unsigned int max_cpus) | 288 | void __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 ... |
diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c index 6f3709996172..fe256559c997 100644 --- a/arch/mips/kernel/smtc-proc.c +++ b/arch/mips/kernel/smtc-proc.c | |||
@@ -14,7 +14,6 @@ | |||
14 | #include <asm/system.h> | 14 | #include <asm/system.h> |
15 | #include <asm/hardirq.h> | 15 | #include <asm/hardirq.h> |
16 | #include <asm/mmu_context.h> | 16 | #include <asm/mmu_context.h> |
17 | #include <asm/smp.h> | ||
18 | #include <asm/mipsregs.h> | 17 | #include <asm/mipsregs.h> |
19 | #include <asm/cacheflush.h> | 18 | #include <asm/cacheflush.h> |
20 | #include <linux/proc_fs.h> | 19 | #include <linux/proc_fs.h> |
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index 9c92d42996cb..85f700e58131 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c | |||
@@ -16,7 +16,6 @@ | |||
16 | #include <asm/hazards.h> | 16 | #include <asm/hazards.h> |
17 | #include <asm/irq.h> | 17 | #include <asm/irq.h> |
18 | #include <asm/mmu_context.h> | 18 | #include <asm/mmu_context.h> |
19 | #include <asm/smp.h> | ||
20 | #include <asm/mipsregs.h> | 19 | #include <asm/mipsregs.h> |
21 | #include <asm/cacheflush.h> | 20 | #include <asm/cacheflush.h> |
22 | #include <asm/time.h> | 21 | #include <asm/time.h> |
diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mips-boards/generic/init.c index 30f1f54cb68b..1695dca5506b 100644 --- a/arch/mips/mips-boards/generic/init.c +++ b/arch/mips/mips-boards/generic/init.c | |||
@@ -250,6 +250,8 @@ void __init mips_ejtag_setup(void) | |||
250 | flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); | 250 | flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); |
251 | } | 251 | } |
252 | 252 | ||
253 | extern struct plat_smp_ops msmtc_smp_ops; | ||
254 | |||
253 | void __init prom_init(void) | 255 | void __init prom_init(void) |
254 | { | 256 | { |
255 | prom_argc = fw_arg0; | 257 | prom_argc = fw_arg0; |
@@ -416,4 +418,10 @@ void __init prom_init(void) | |||
416 | #ifdef CONFIG_SERIAL_8250_CONSOLE | 418 | #ifdef CONFIG_SERIAL_8250_CONSOLE |
417 | console_config(); | 419 | console_config(); |
418 | #endif | 420 | #endif |
421 | #ifdef CONFIG_MIPS_MT_SMP | ||
422 | register_smp_ops(&vsmp_smp_ops); | ||
423 | #endif | ||
424 | #ifdef CONFIG_MIPS_MT_SMTC | ||
425 | register_smp_ops(&msmtc_smp_ops); | ||
426 | #endif | ||
419 | } | 427 | } |
diff --git a/arch/mips/mips-boards/malta/malta_smtc.c b/arch/mips/mips-boards/malta/malta_smtc.c index 5c980f4a48fe..6f051ca243fa 100644 --- a/arch/mips/mips-boards/malta/malta_smtc.c +++ b/arch/mips/mips-boards/malta/malta_smtc.c | |||
@@ -15,26 +15,24 @@ | |||
15 | * Cause the specified action to be performed on a targeted "CPU" | 15 | * Cause the specified action to be performed on a targeted "CPU" |
16 | */ | 16 | */ |
17 | 17 | ||
18 | void core_send_ipi(int cpu, unsigned int action) | 18 | static void msmtc_send_ipi_single(int cpu, unsigned int action) |
19 | { | 19 | { |
20 | /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ | 20 | /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ |
21 | smtc_send_ipi(cpu, LINUX_SMP_IPI, action); | 21 | smtc_send_ipi(cpu, LINUX_SMP_IPI, action); |
22 | } | 22 | } |
23 | 23 | ||
24 | /* | 24 | static void msmtc_send_ipi_mask(cpumask_t mask, unsigned int action) |
25 | * Platform "CPU" startup hook | ||
26 | */ | ||
27 | |||
28 | void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | ||
29 | { | 25 | { |
30 | smtc_boot_secondary(cpu, idle); | 26 | unsigned int i; |
27 | |||
28 | for_each_cpu_mask(i, mask) | ||
29 | msmtc_send_ipi_single(i, action); | ||
31 | } | 30 | } |
32 | 31 | ||
33 | /* | 32 | /* |
34 | * Post-config but pre-boot cleanup entry point | 33 | * Post-config but pre-boot cleanup entry point |
35 | */ | 34 | */ |
36 | 35 | static void __cpuinit msmtc_init_secondary(void) | |
37 | void __cpuinit prom_init_secondary(void) | ||
38 | { | 36 | { |
39 | void smtc_init_secondary(void); | 37 | void smtc_init_secondary(void); |
40 | int myvpe; | 38 | int myvpe; |
@@ -50,45 +48,61 @@ void __cpuinit prom_init_secondary(void) | |||
50 | set_c0_status(0x100 << cp0_perfcount_irq); | 48 | set_c0_status(0x100 << cp0_perfcount_irq); |
51 | } | 49 | } |
52 | 50 | ||
53 | smtc_init_secondary(); | 51 | smtc_init_secondary(); |
54 | } | 52 | } |
55 | 53 | ||
56 | /* | 54 | /* |
57 | * Platform SMP pre-initialization | 55 | * Platform "CPU" startup hook |
58 | * | ||
59 | * As noted above, we can assume a single CPU for now | ||
60 | * but it may be multithreaded. | ||
61 | */ | 56 | */ |
62 | 57 | static void __cpuinit msmtc_boot_secondary(int cpu, struct task_struct *idle) | |
63 | void __cpuinit plat_smp_setup(void) | ||
64 | { | 58 | { |
65 | if (read_c0_config3() & (1<<2)) | 59 | smtc_boot_secondary(cpu, idle); |
66 | mipsmt_build_cpu_map(0); | ||
67 | } | 60 | } |
68 | 61 | ||
69 | void __init plat_prepare_cpus(unsigned int max_cpus) | 62 | /* |
63 | * SMP initialization finalization entry point | ||
64 | */ | ||
65 | static void __cpuinit msmtc_smp_finish(void) | ||
70 | { | 66 | { |
71 | if (read_c0_config3() & (1<<2)) | 67 | smtc_smp_finish(); |
72 | mipsmt_prepare_cpus(); | ||
73 | } | 68 | } |
74 | 69 | ||
75 | /* | 70 | /* |
76 | * SMP initialization finalization entry point | 71 | * Hook for after all CPUs are online |
77 | */ | 72 | */ |
78 | 73 | ||
79 | void __cpuinit prom_smp_finish(void) | 74 | static void msmtc_cpus_done(void) |
80 | { | 75 | { |
81 | smtc_smp_finish(); | ||
82 | } | 76 | } |
83 | 77 | ||
84 | /* | 78 | /* |
85 | * Hook for after all CPUs are online | 79 | * Platform SMP pre-initialization |
80 | * | ||
81 | * As noted above, we can assume a single CPU for now | ||
82 | * but it may be multithreaded. | ||
86 | */ | 83 | */ |
87 | 84 | ||
88 | void prom_cpus_done(void) | 85 | static void __init msmtc_smp_setup(void) |
89 | { | 86 | { |
87 | mipsmt_build_cpu_map(0); | ||
90 | } | 88 | } |
91 | 89 | ||
90 | static void __init msmtc_prepare_cpus(unsigned int max_cpus) | ||
91 | { | ||
92 | mipsmt_prepare_cpus(); | ||
93 | } | ||
94 | |||
95 | struct plat_smp_ops msmtc_smp_ops = { | ||
96 | .send_ipi_single = msmtc_send_ipi_single, | ||
97 | .send_ipi_mask = msmtc_send_ipi_mask, | ||
98 | .init_secondary = msmtc_init_secondary, | ||
99 | .smp_finish = msmtc_smp_finish, | ||
100 | .cpus_done = msmtc_cpus_done, | ||
101 | .boot_secondary = msmtc_boot_secondary, | ||
102 | .smp_setup = msmtc_smp_setup, | ||
103 | .prepare_cpus = msmtc_prepare_cpus, | ||
104 | }; | ||
105 | |||
92 | #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF | 106 | #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF |
93 | /* | 107 | /* |
94 | * IRQ affinity hook | 108 | * IRQ affinity hook |
diff --git a/arch/mips/mipssim/Makefile b/arch/mips/mipssim/Makefile index 75568b584df4..57f43c1c7882 100644 --- a/arch/mips/mipssim/Makefile +++ b/arch/mips/mipssim/Makefile | |||
@@ -21,6 +21,6 @@ obj-y := sim_platform.o sim_setup.o sim_mem.o sim_time.o sim_int.o \ | |||
21 | sim_cmdline.o | 21 | sim_cmdline.o |
22 | 22 | ||
23 | obj-$(CONFIG_EARLY_PRINTK) += sim_console.o | 23 | obj-$(CONFIG_EARLY_PRINTK) += sim_console.o |
24 | obj-$(CONFIG_SMP) += sim_smp.o | 24 | obj-$(CONFIG_MIPS_MT_SMTC) += sim_smtc.o |
25 | 25 | ||
26 | EXTRA_CFLAGS += -Werror | 26 | EXTRA_CFLAGS += -Werror |
diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c index 452c129d02c1..d49fe73426b7 100644 --- a/arch/mips/mipssim/sim_setup.c +++ b/arch/mips/mipssim/sim_setup.c | |||
@@ -60,6 +60,8 @@ void __init plat_mem_setup(void) | |||
60 | #endif | 60 | #endif |
61 | } | 61 | } |
62 | 62 | ||
63 | extern struct plat_smp_ops ssmtc_smp_ops; | ||
64 | |||
63 | void __init prom_init(void) | 65 | void __init prom_init(void) |
64 | { | 66 | { |
65 | set_io_port_base(0xbfd00000); | 67 | set_io_port_base(0xbfd00000); |
@@ -67,8 +69,20 @@ void __init prom_init(void) | |||
67 | pr_info("\nLINUX started...\n"); | 69 | pr_info("\nLINUX started...\n"); |
68 | prom_init_cmdline(); | 70 | prom_init_cmdline(); |
69 | prom_meminit(); | 71 | prom_meminit(); |
70 | } | ||
71 | 72 | ||
73 | #ifdef CONFIG_MIPS_MT_SMP | ||
74 | if (cpu_has_mipsmt) | ||
75 | register_smp_ops(&vsmp_smp_ops); | ||
76 | else | ||
77 | register_smp_ops(&up_smp_ops); | ||
78 | #endif | ||
79 | #ifdef CONFIG_MIPS_MT_SMTC | ||
80 | if (cpu_has_mipsmt) | ||
81 | register_smp_ops(&ssmtc_smp_ops); | ||
82 | else | ||
83 | register_smp_ops(&up_smp_ops); | ||
84 | #endif | ||
85 | } | ||
72 | 86 | ||
73 | static void __init serial_init(void) | 87 | static void __init serial_init(void) |
74 | { | 88 | { |
diff --git a/arch/mips/mipssim/sim_smp.c b/arch/mips/mipssim/sim_smtc.c index ccbbccac23ef..d6e4f656ad14 100644 --- a/arch/mips/mipssim/sim_smp.c +++ b/arch/mips/mipssim/sim_smtc.c | |||
@@ -16,7 +16,7 @@ | |||
16 | * | 16 | * |
17 | */ | 17 | */ |
18 | /* | 18 | /* |
19 | * Simulator Platform-specific hooks for SMP operation | 19 | * Simulator Platform-specific hooks for SMTC operation |
20 | */ | 20 | */ |
21 | #include <linux/kernel.h> | 21 | #include <linux/kernel.h> |
22 | #include <linux/sched.h> | 22 | #include <linux/sched.h> |
@@ -29,65 +29,72 @@ | |||
29 | #include <asm/processor.h> | 29 | #include <asm/processor.h> |
30 | #include <asm/system.h> | 30 | #include <asm/system.h> |
31 | #include <asm/mmu_context.h> | 31 | #include <asm/mmu_context.h> |
32 | #ifdef CONFIG_MIPS_MT_SMTC | ||
33 | #include <asm/smtc_ipi.h> | 32 | #include <asm/smtc_ipi.h> |
34 | #endif /* CONFIG_MIPS_MT_SMTC */ | ||
35 | 33 | ||
36 | /* VPE/SMP Prototype implements platform interfaces directly */ | 34 | /* VPE/SMP Prototype implements platform interfaces directly */ |
37 | #if !defined(CONFIG_MIPS_MT_SMP) | ||
38 | 35 | ||
39 | /* | 36 | /* |
40 | * Cause the specified action to be performed on a targeted "CPU" | 37 | * Cause the specified action to be performed on a targeted "CPU" |
41 | */ | 38 | */ |
42 | 39 | ||
43 | void core_send_ipi(int cpu, unsigned int action) | 40 | static void ssmtc_send_ipi_single(int cpu, unsigned int action) |
44 | { | 41 | { |
45 | #ifdef CONFIG_MIPS_MT_SMTC | ||
46 | smtc_send_ipi(cpu, LINUX_SMP_IPI, action); | 42 | smtc_send_ipi(cpu, LINUX_SMP_IPI, action); |
47 | #endif /* CONFIG_MIPS_MT_SMTC */ | 43 | /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ |
48 | /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ | 44 | } |
45 | |||
46 | static inline void ssmtc_send_ipi_mask(cpumask_t mask, unsigned int action) | ||
47 | { | ||
48 | unsigned int i; | ||
49 | 49 | ||
50 | for_each_cpu_mask(i, mask) | ||
51 | ssmtc_send_ipi_single(i, action); | ||
50 | } | 52 | } |
51 | 53 | ||
52 | /* | 54 | /* |
53 | * Platform "CPU" startup hook | 55 | * Post-config but pre-boot cleanup entry point |
54 | */ | 56 | */ |
55 | 57 | static void __cpuinit ssmtc_init_secondary(void) | |
56 | void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | ||
57 | { | 58 | { |
58 | #ifdef CONFIG_MIPS_MT_SMTC | 59 | void smtc_init_secondary(void); |
59 | smtc_boot_secondary(cpu, idle); | 60 | |
60 | #endif /* CONFIG_MIPS_MT_SMTC */ | 61 | smtc_init_secondary(); |
61 | } | 62 | } |
62 | 63 | ||
63 | /* | 64 | /* |
64 | * Post-config but pre-boot cleanup entry point | 65 | * SMP initialization finalization entry point |
65 | */ | 66 | */ |
67 | static void __cpuinit ssmtc_smp_finish(void) | ||
68 | { | ||
69 | smtc_smp_finish(); | ||
70 | } | ||
66 | 71 | ||
67 | void __cpuinit prom_init_secondary(void) | 72 | /* |
73 | * Hook for after all CPUs are online | ||
74 | */ | ||
75 | static void ssmtc_cpus_done(void) | ||
68 | { | 76 | { |
69 | #ifdef CONFIG_MIPS_MT_SMTC | 77 | } |
70 | void smtc_init_secondary(void); | ||
71 | 78 | ||
72 | smtc_init_secondary(); | 79 | /* |
73 | #endif /* CONFIG_MIPS_MT_SMTC */ | 80 | * Platform "CPU" startup hook |
81 | */ | ||
82 | static void __cpuinit ssmtc_boot_secondary(int cpu, struct task_struct *idle) | ||
83 | { | ||
84 | smtc_boot_secondary(cpu, idle); | ||
74 | } | 85 | } |
75 | 86 | ||
76 | void plat_smp_setup(void) | 87 | static void __init ssmtc_smp_setup(void) |
77 | { | 88 | { |
78 | #ifdef CONFIG_MIPS_MT_SMTC | ||
79 | if (read_c0_config3() & (1 << 2)) | 89 | if (read_c0_config3() & (1 << 2)) |
80 | mipsmt_build_cpu_map(0); | 90 | mipsmt_build_cpu_map(0); |
81 | #endif /* CONFIG_MIPS_MT_SMTC */ | ||
82 | } | 91 | } |
83 | 92 | ||
84 | /* | 93 | /* |
85 | * Platform SMP pre-initialization | 94 | * Platform SMP pre-initialization |
86 | */ | 95 | */ |
87 | 96 | static void ssmtc_prepare_cpus(unsigned int max_cpus) | |
88 | void plat_prepare_cpus(unsigned int max_cpus) | ||
89 | { | 97 | { |
90 | #ifdef CONFIG_MIPS_MT_SMTC | ||
91 | /* | 98 | /* |
92 | * As noted above, we can assume a single CPU for now | 99 | * As noted above, we can assume a single CPU for now |
93 | * but it may be multithreaded. | 100 | * but it may be multithreaded. |
@@ -96,28 +103,15 @@ void plat_prepare_cpus(unsigned int max_cpus) | |||
96 | if (read_c0_config3() & (1 << 2)) { | 103 | if (read_c0_config3() & (1 << 2)) { |
97 | mipsmt_prepare_cpus(); | 104 | mipsmt_prepare_cpus(); |
98 | } | 105 | } |
99 | #endif /* CONFIG_MIPS_MT_SMTC */ | ||
100 | } | 106 | } |
101 | 107 | ||
102 | /* | 108 | struct plat_smp_ops ssmtc_smp_ops = { |
103 | * SMP initialization finalization entry point | 109 | .send_ipi_single = ssmtc_send_ipi_single, |
104 | */ | 110 | .send_ipi_mask = ssmtc_send_ipi_mask, |
105 | 111 | .init_secondary = ssmtc_init_secondary, | |
106 | void __cpuinit prom_smp_finish(void) | 112 | .smp_finish = ssmtc_smp_finish, |
107 | { | 113 | .cpus_done = ssmtc_cpus_done, |
108 | #ifdef CONFIG_MIPS_MT_SMTC | 114 | .boot_secondary = ssmtc_boot_secondary, |
109 | smtc_smp_finish(); | 115 | .smp_setup = ssmtc_smp_setup, |
110 | #endif /* CONFIG_MIPS_MT_SMTC */ | 116 | .prepare_cpus = ssmtc_prepare_cpus, |
111 | } | 117 | }; |
112 | |||
113 | /* | ||
114 | * Hook for after all CPUs are online | ||
115 | */ | ||
116 | |||
117 | void prom_cpus_done(void) | ||
118 | { | ||
119 | #ifdef CONFIG_MIPS_MT_SMTC | ||
120 | |||
121 | #endif /* CONFIG_MIPS_MT_SMTC */ | ||
122 | } | ||
123 | #endif /* CONFIG_MIPS32R2_MT_SMP */ | ||
diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c index 96d3ff051d3d..35dc435846a6 100644 --- a/arch/mips/pmc-sierra/yosemite/prom.c +++ b/arch/mips/pmc-sierra/yosemite/prom.c | |||
@@ -19,6 +19,7 @@ | |||
19 | #include <asm/pgtable.h> | 19 | #include <asm/pgtable.h> |
20 | #include <asm/processor.h> | 20 | #include <asm/processor.h> |
21 | #include <asm/reboot.h> | 21 | #include <asm/reboot.h> |
22 | #include <asm/smp-ops.h> | ||
22 | #include <asm/system.h> | 23 | #include <asm/system.h> |
23 | #include <asm/bootinfo.h> | 24 | #include <asm/bootinfo.h> |
24 | #include <asm/pmon.h> | 25 | #include <asm/pmon.h> |
@@ -78,6 +79,8 @@ static void prom_halt(void) | |||
78 | __asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0"); | 79 | __asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0"); |
79 | } | 80 | } |
80 | 81 | ||
82 | extern struct plat_smp_ops yos_smp_ops; | ||
83 | |||
81 | /* | 84 | /* |
82 | * Init routine which accepts the variables from PMON | 85 | * Init routine which accepts the variables from PMON |
83 | */ | 86 | */ |
@@ -127,6 +130,8 @@ void __init prom_init(void) | |||
127 | } | 130 | } |
128 | 131 | ||
129 | prom_grab_secondary(); | 132 | prom_grab_secondary(); |
133 | |||
134 | register_smp_ops(&yos_smp_ops); | ||
130 | } | 135 | } |
131 | 136 | ||
132 | void __init prom_free_prom_memory(void) | 137 | void __init prom_free_prom_memory(void) |
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c index b0f12cd2968a..653f3ec61cab 100644 --- a/arch/mips/pmc-sierra/yosemite/smp.c +++ b/arch/mips/pmc-sierra/yosemite/smp.c | |||
@@ -42,70 +42,6 @@ void __init prom_grab_secondary(void) | |||
42 | launchstack + LAUNCHSTACK_SIZE, 0); | 42 | launchstack + LAUNCHSTACK_SIZE, 0); |
43 | } | 43 | } |
44 | 44 | ||
45 | /* | ||
46 | * Detect available CPUs, populate phys_cpu_present_map before smp_init | ||
47 | * | ||
48 | * We don't want to start the secondary CPU yet nor do we have a nice probing | ||
49 | * feature in PMON so we just assume presence of the secondary core. | ||
50 | */ | ||
51 | void __init plat_smp_setup(void) | ||
52 | { | ||
53 | int i; | ||
54 | |||
55 | cpus_clear(phys_cpu_present_map); | ||
56 | |||
57 | for (i = 0; i < 2; i++) { | ||
58 | cpu_set(i, phys_cpu_present_map); | ||
59 | __cpu_number_map[i] = i; | ||
60 | __cpu_logical_map[i] = i; | ||
61 | } | ||
62 | } | ||
63 | |||
64 | void __init plat_prepare_cpus(unsigned int max_cpus) | ||
65 | { | ||
66 | /* | ||
67 | * Be paranoid. Enable the IPI only if we're really about to go SMP. | ||
68 | */ | ||
69 | if (cpus_weight(cpu_possible_map)) | ||
70 | set_c0_status(STATUSF_IP5); | ||
71 | } | ||
72 | |||
73 | /* | ||
74 | * Firmware CPU startup hook | ||
75 | * Complicated by PMON's weird interface which tries to minimic the UNIX fork. | ||
76 | * It launches the next * available CPU and copies some information on the | ||
77 | * stack so the first thing we do is throw away that stuff and load useful | ||
78 | * values into the registers ... | ||
79 | */ | ||
80 | void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | ||
81 | { | ||
82 | unsigned long gp = (unsigned long) task_thread_info(idle); | ||
83 | unsigned long sp = __KSTK_TOS(idle); | ||
84 | |||
85 | secondary_sp = sp; | ||
86 | secondary_gp = gp; | ||
87 | |||
88 | spin_unlock(&launch_lock); | ||
89 | } | ||
90 | |||
91 | /* Hook for after all CPUs are online */ | ||
92 | void prom_cpus_done(void) | ||
93 | { | ||
94 | } | ||
95 | |||
96 | /* | ||
97 | * After we've done initial boot, this function is called to allow the | ||
98 | * board code to clean up state, if needed | ||
99 | */ | ||
100 | void __cpuinit prom_init_secondary(void) | ||
101 | { | ||
102 | set_c0_status(ST0_CO | ST0_IE | ST0_IM); | ||
103 | } | ||
104 | |||
105 | void __cpuinit prom_smp_finish(void) | ||
106 | { | ||
107 | } | ||
108 | |||
109 | void titan_mailbox_irq(void) | 45 | void titan_mailbox_irq(void) |
110 | { | 46 | { |
111 | int cpu = smp_processor_id(); | 47 | int cpu = smp_processor_id(); |
@@ -133,7 +69,7 @@ void titan_mailbox_irq(void) | |||
133 | /* | 69 | /* |
134 | * Send inter-processor interrupt | 70 | * Send inter-processor interrupt |
135 | */ | 71 | */ |
136 | void core_send_ipi(int cpu, unsigned int action) | 72 | static void yos_send_ipi_single(int cpu, unsigned int action) |
137 | { | 73 | { |
138 | /* | 74 | /* |
139 | * Generate an INTMSG so that it can be sent over to the | 75 | * Generate an INTMSG so that it can be sent over to the |
@@ -159,3 +95,86 @@ void core_send_ipi(int cpu, unsigned int action) | |||
159 | break; | 95 | break; |
160 | } | 96 | } |
161 | } | 97 | } |
98 | |||
99 | static void yos_send_ipi_mask(cpumask_t mask, unsigned int action) | ||
100 | { | ||
101 | unsigned int i; | ||
102 | |||
103 | for_each_cpu_mask(i, mask) | ||
104 | yos_send_ipi_single(i, action); | ||
105 | } | ||
106 | |||
107 | /* | ||
108 | * After we've done initial boot, this function is called to allow the | ||
109 | * board code to clean up state, if needed | ||
110 | */ | ||
111 | static void __cpuinit yos_init_secondary(void) | ||
112 | { | ||
113 | set_c0_status(ST0_CO | ST0_IE | ST0_IM); | ||
114 | } | ||
115 | |||
116 | static void __cpuinit yos_smp_finish(void) | ||
117 | { | ||
118 | } | ||
119 | |||
120 | /* Hook for after all CPUs are online */ | ||
121 | static void yos_cpus_done(void) | ||
122 | { | ||
123 | } | ||
124 | |||
125 | /* | ||
126 | * Firmware CPU startup hook | ||
127 | * Complicated by PMON's weird interface which tries to minimic the UNIX fork. | ||
128 | * It launches the next * available CPU and copies some information on the | ||
129 | * stack so the first thing we do is throw away that stuff and load useful | ||
130 | * values into the registers ... | ||
131 | */ | ||
132 | static void __cpuinit yos_boot_secondary(int cpu, struct task_struct *idle) | ||
133 | { | ||
134 | unsigned long gp = (unsigned long) task_thread_info(idle); | ||
135 | unsigned long sp = __KSTK_TOS(idle); | ||
136 | |||
137 | secondary_sp = sp; | ||
138 | secondary_gp = gp; | ||
139 | |||
140 | spin_unlock(&launch_lock); | ||
141 | } | ||
142 | |||
143 | /* | ||
144 | * Detect available CPUs, populate phys_cpu_present_map before smp_init | ||
145 | * | ||
146 | * We don't want to start the secondary CPU yet nor do we have a nice probing | ||
147 | * feature in PMON so we just assume presence of the secondary core. | ||
148 | */ | ||
149 | static void __init yos_smp_setup(void) | ||
150 | { | ||
151 | int i; | ||
152 | |||
153 | cpus_clear(phys_cpu_present_map); | ||
154 | |||
155 | for (i = 0; i < 2; i++) { | ||
156 | cpu_set(i, phys_cpu_present_map); | ||
157 | __cpu_number_map[i] = i; | ||
158 | __cpu_logical_map[i] = i; | ||
159 | } | ||
160 | } | ||
161 | |||
162 | static void __init yos_prepare_cpus(unsigned int max_cpus) | ||
163 | { | ||
164 | /* | ||
165 | * Be paranoid. Enable the IPI only if we're really about to go SMP. | ||
166 | */ | ||
167 | if (cpus_weight(cpu_possible_map)) | ||
168 | set_c0_status(STATUSF_IP5); | ||
169 | } | ||
170 | |||
171 | struct plat_smp_ops yos_smp_ops = { | ||
172 | .send_ipi_single = yos_send_ipi_single, | ||
173 | .send_ipi_mask = yos_send_ipi_mask, | ||
174 | .init_secondary = yos_init_secondary, | ||
175 | .smp_finish = yos_smp_finish, | ||
176 | .cpus_done = yos_cpus_done, | ||
177 | .boot_secondary = yos_boot_secondary, | ||
178 | .smp_setup = yos_smp_setup, | ||
179 | .prepare_cpus = yos_prepare_cpus, | ||
180 | }; | ||
diff --git a/arch/mips/qemu/q-smp.c b/arch/mips/qemu/q-smp.c index 4b0178d0df0b..ead6c30eeb14 100644 --- a/arch/mips/qemu/q-smp.c +++ b/arch/mips/qemu/q-smp.c | |||
@@ -3,7 +3,7 @@ | |||
3 | * License. See the file "COPYING" in the main directory of this archive | 3 | * License. See the file "COPYING" in the main directory of this archive |
4 | * for more details. | 4 | * for more details. |
5 | * | 5 | * |
6 | * Copyright (C) 2006 by Ralf Baechle (ralf@linux-mips.org) | 6 | * Copyright (C) 2006, 07 by Ralf Baechle (ralf@linux-mips.org) |
7 | * | 7 | * |
8 | * Symmetric Uniprocessor (TM) Support | 8 | * Symmetric Uniprocessor (TM) Support |
9 | */ | 9 | */ |
@@ -13,43 +13,55 @@ | |||
13 | /* | 13 | /* |
14 | * Send inter-processor interrupt | 14 | * Send inter-processor interrupt |
15 | */ | 15 | */ |
16 | void core_send_ipi(int cpu, unsigned int action) | 16 | void up_send_ipi_single(int cpu, unsigned int action) |
17 | { | 17 | { |
18 | panic(KERN_ERR "%s called", __FUNCTION__); | 18 | panic(KERN_ERR "%s called", __func__); |
19 | } | ||
20 | |||
21 | static inline void up_send_ipi_mask(cpumask_t mask, unsigned int action) | ||
22 | { | ||
23 | panic(KERN_ERR "%s called", __func__); | ||
19 | } | 24 | } |
20 | 25 | ||
21 | /* | 26 | /* |
22 | * After we've done initial boot, this function is called to allow the | 27 | * After we've done initial boot, this function is called to allow the |
23 | * board code to clean up state, if needed | 28 | * board code to clean up state, if needed |
24 | */ | 29 | */ |
25 | void __cpuinit prom_init_secondary(void) | 30 | void __cpuinit up_init_secondary(void) |
26 | { | 31 | { |
27 | } | 32 | } |
28 | 33 | ||
29 | void __cpuinit prom_smp_finish(void) | 34 | void __cpuinit up_smp_finish(void) |
30 | { | 35 | { |
31 | } | 36 | } |
32 | 37 | ||
33 | /* Hook for after all CPUs are online */ | 38 | /* Hook for after all CPUs are online */ |
34 | void prom_cpus_done(void) | 39 | void up_cpus_done(void) |
35 | { | ||
36 | } | ||
37 | |||
38 | void __init prom_prepare_cpus(unsigned int max_cpus) | ||
39 | { | 40 | { |
40 | cpus_clear(phys_cpu_present_map); | ||
41 | } | 41 | } |
42 | 42 | ||
43 | /* | 43 | /* |
44 | * Firmware CPU startup hook | 44 | * Firmware CPU startup hook |
45 | */ | 45 | */ |
46 | void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | 46 | void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle) |
47 | { | 47 | { |
48 | } | 48 | } |
49 | 49 | ||
50 | void __init plat_smp_setup(void) | 50 | void __init up_smp_setup(void) |
51 | { | 51 | { |
52 | } | 52 | } |
53 | void __init plat_prepare_cpus(unsigned int max_cpus) | 53 | |
54 | void __init up_prepare_cpus(unsigned int max_cpus) | ||
54 | { | 55 | { |
55 | } | 56 | } |
57 | |||
58 | struct plat_smp_ops up_smp_ops = { | ||
59 | .send_ipi_single = up_send_ipi_single, | ||
60 | .send_ipi_mask = up_send_ipi_mask, | ||
61 | .init_secondary = up_init_secondary, | ||
62 | .smp_finish = up_smp_finish, | ||
63 | .cpus_done = up_cpus_done, | ||
64 | .boot_secondary = up_boot_secondary, | ||
65 | .smp_setup = up_smp_setup, | ||
66 | .prepare_cpus = up_prepare_cpus, | ||
67 | }; | ||
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c index 3305fa9ae66d..a49e7c85f724 100644 --- a/arch/mips/sgi-ip27/ip27-init.c +++ b/arch/mips/sgi-ip27/ip27-init.c | |||
@@ -27,7 +27,6 @@ | |||
27 | #include <asm/sn/hub.h> | 27 | #include <asm/sn/hub.h> |
28 | #include <asm/sn/intr.h> | 28 | #include <asm/sn/intr.h> |
29 | #include <asm/current.h> | 29 | #include <asm/current.h> |
30 | #include <asm/smp.h> | ||
31 | #include <asm/processor.h> | 30 | #include <asm/processor.h> |
32 | #include <asm/mmu_context.h> | 31 | #include <asm/mmu_context.h> |
33 | #include <asm/thread_info.h> | 32 | #include <asm/thread_info.h> |
diff --git a/arch/mips/sgi-ip27/ip27-klnuma.c b/arch/mips/sgi-ip27/ip27-klnuma.c index f10d9839006d..48932ce1d730 100644 --- a/arch/mips/sgi-ip27/ip27-klnuma.c +++ b/arch/mips/sgi-ip27/ip27-klnuma.c | |||
@@ -11,7 +11,6 @@ | |||
11 | 11 | ||
12 | #include <asm/page.h> | 12 | #include <asm/page.h> |
13 | #include <asm/sections.h> | 13 | #include <asm/sections.h> |
14 | #include <asm/smp.h> | ||
15 | #include <asm/sn/types.h> | 14 | #include <asm/sn/types.h> |
16 | #include <asm/sn/arch.h> | 15 | #include <asm/sn/arch.h> |
17 | #include <asm/sn/gda.h> | 16 | #include <asm/sn/gda.h> |
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c index a70656d42191..f15fc93d6b35 100644 --- a/arch/mips/sgi-ip27/ip27-smp.c +++ b/arch/mips/sgi-ip27/ip27-smp.c | |||
@@ -140,30 +140,51 @@ static __init void intr_clear_all(nasid_t nasid) | |||
140 | REMOTE_HUB_CLR_INTR(nasid, i); | 140 | REMOTE_HUB_CLR_INTR(nasid, i); |
141 | } | 141 | } |
142 | 142 | ||
143 | void __init plat_smp_setup(void) | 143 | static void ip27_send_ipi_single(int destid, unsigned int action) |
144 | { | 144 | { |
145 | cnodeid_t cnode; | 145 | int irq; |
146 | 146 | ||
147 | for_each_online_node(cnode) { | 147 | switch (action) { |
148 | if (cnode == 0) | 148 | case SMP_RESCHEDULE_YOURSELF: |
149 | continue; | 149 | irq = CPU_RESCHED_A_IRQ; |
150 | intr_clear_all(COMPACT_TO_NASID_NODEID(cnode)); | 150 | break; |
151 | case SMP_CALL_FUNCTION: | ||
152 | irq = CPU_CALL_A_IRQ; | ||
153 | break; | ||
154 | default: | ||
155 | panic("sendintr"); | ||
151 | } | 156 | } |
152 | 157 | ||
153 | replicate_kernel_text(); | 158 | irq += cputoslice(destid); |
154 | 159 | ||
155 | /* | 160 | /* |
156 | * Assumption to be fixed: we're always booted on logical / physical | 161 | * Convert the compact hub number to the NASID to get the correct |
157 | * processor 0. While we're always running on logical processor 0 | 162 | * part of the address space. Then set the interrupt bit associated |
158 | * this still means this is physical processor zero; it might for | 163 | * with the CPU we want to send the interrupt to. |
159 | * example be disabled in the firwware. | ||
160 | */ | 164 | */ |
161 | alloc_cpupda(0, 0); | 165 | REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq); |
162 | } | 166 | } |
163 | 167 | ||
164 | void __init plat_prepare_cpus(unsigned int max_cpus) | 168 | static void ip27_send_ipi_mask(cpumask_t mask, unsigned int action) |
169 | { | ||
170 | unsigned int i; | ||
171 | |||
172 | for_each_cpu_mask(i, mask) | ||
173 | ip27_send_ipi_single(i, action); | ||
174 | } | ||
175 | |||
176 | static void __cpuinit ip27_init_secondary(void) | ||
177 | { | ||
178 | per_cpu_init(); | ||
179 | local_irq_enable(); | ||
180 | } | ||
181 | |||
182 | static void __cpuinit ip27_smp_finish(void) | ||
183 | { | ||
184 | } | ||
185 | |||
186 | static void __init ip27_cpus_done(void) | ||
165 | { | 187 | { |
166 | /* We already did everything necessary earlier */ | ||
167 | } | 188 | } |
168 | 189 | ||
169 | /* | 190 | /* |
@@ -171,7 +192,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus) | |||
171 | * set sp to the kernel stack of the newly created idle process, gp to the proc | 192 | * set sp to the kernel stack of the newly created idle process, gp to the proc |
172 | * struct so that current_thread_info() will work. | 193 | * struct so that current_thread_info() will work. |
173 | */ | 194 | */ |
174 | void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | 195 | static void __cpuinit ip27_boot_secondary(int cpu, struct task_struct *idle) |
175 | { | 196 | { |
176 | unsigned long gp = (unsigned long)task_thread_info(idle); | 197 | unsigned long gp = (unsigned long)task_thread_info(idle); |
177 | unsigned long sp = __KSTK_TOS(idle); | 198 | unsigned long sp = __KSTK_TOS(idle); |
@@ -181,41 +202,39 @@ void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | |||
181 | 0, (void *) sp, (void *) gp); | 202 | 0, (void *) sp, (void *) gp); |
182 | } | 203 | } |
183 | 204 | ||
184 | void __cpuinit prom_init_secondary(void) | 205 | static void __init ip27_smp_setup(void) |
185 | { | 206 | { |
186 | per_cpu_init(); | 207 | cnodeid_t cnode; |
187 | local_irq_enable(); | ||
188 | } | ||
189 | |||
190 | void __init prom_cpus_done(void) | ||
191 | { | ||
192 | } | ||
193 | |||
194 | void __cpuinit prom_smp_finish(void) | ||
195 | { | ||
196 | } | ||
197 | |||
198 | void core_send_ipi(int destid, unsigned int action) | ||
199 | { | ||
200 | int irq; | ||
201 | 208 | ||
202 | switch (action) { | 209 | for_each_online_node(cnode) { |
203 | case SMP_RESCHEDULE_YOURSELF: | 210 | if (cnode == 0) |
204 | irq = CPU_RESCHED_A_IRQ; | 211 | continue; |
205 | break; | 212 | intr_clear_all(COMPACT_TO_NASID_NODEID(cnode)); |
206 | case SMP_CALL_FUNCTION: | ||
207 | irq = CPU_CALL_A_IRQ; | ||
208 | break; | ||
209 | default: | ||
210 | panic("sendintr"); | ||
211 | } | 213 | } |
212 | 214 | ||
213 | irq += cputoslice(destid); | 215 | replicate_kernel_text(); |
214 | 216 | ||
215 | /* | 217 | /* |
216 | * Convert the compact hub number to the NASID to get the correct | 218 | * Assumption to be fixed: we're always booted on logical / physical |
217 | * part of the address space. Then set the interrupt bit associated | 219 | * processor 0. While we're always running on logical processor 0 |
218 | * with the CPU we want to send the interrupt to. | 220 | * this still means this is physical processor zero; it might for |
221 | * example be disabled in the firwware. | ||
219 | */ | 222 | */ |
220 | REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq); | 223 | alloc_cpupda(0, 0); |
221 | } | 224 | } |
225 | |||
226 | static void __init ip27_prepare_cpus(unsigned int max_cpus) | ||
227 | { | ||
228 | /* We already did everything necessary earlier */ | ||
229 | } | ||
230 | |||
231 | struct plat_smp_ops ip27_smp_ops = { | ||
232 | .send_ipi_single = ip27_send_ipi_single, | ||
233 | .send_ipi_mask = ip27_send_ipi_mask, | ||
234 | .init_secondary = ip27_init_secondary, | ||
235 | .smp_finish = ip27_smp_finish, | ||
236 | .cpus_done = ip27_cpus_done, | ||
237 | .boot_secondary = ip27_boot_secondary, | ||
238 | .smp_setup = ip27_smp_setup, | ||
239 | .prepare_cpus = ip27_prepare_cpus, | ||
240 | }; | ||
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c index 436ba78359ab..183c460b9ca1 100644 --- a/arch/mips/sibyte/bcm1480/smp.c +++ b/arch/mips/sibyte/bcm1480/smp.c | |||
@@ -23,6 +23,7 @@ | |||
23 | 23 | ||
24 | #include <asm/mmu_context.h> | 24 | #include <asm/mmu_context.h> |
25 | #include <asm/io.h> | 25 | #include <asm/io.h> |
26 | #include <asm/fw/cfe/cfe_api.h> | ||
26 | #include <asm/sibyte/sb1250.h> | 27 | #include <asm/sibyte/sb1250.h> |
27 | #include <asm/sibyte/bcm1480_regs.h> | 28 | #include <asm/sibyte/bcm1480_regs.h> |
28 | #include <asm/sibyte/bcm1480_int.h> | 29 | #include <asm/sibyte/bcm1480_int.h> |
@@ -67,28 +68,114 @@ void __cpuinit bcm1480_smp_init(void) | |||
67 | change_c0_status(ST0_IM, imask); | 68 | change_c0_status(ST0_IM, imask); |
68 | } | 69 | } |
69 | 70 | ||
70 | void __cpuinit bcm1480_smp_finish(void) | 71 | /* |
72 | * These are routines for dealing with the sb1250 smp capabilities | ||
73 | * independent of board/firmware | ||
74 | */ | ||
75 | |||
76 | /* | ||
77 | * Simple enough; everything is set up, so just poke the appropriate mailbox | ||
78 | * register, and we should be set | ||
79 | */ | ||
80 | static void bcm1480_send_ipi_single(int cpu, unsigned int action) | ||
81 | { | ||
82 | __raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]); | ||
83 | } | ||
84 | |||
85 | static void bcm1480_send_ipi_mask(cpumask_t mask, unsigned int action) | ||
86 | { | ||
87 | unsigned int i; | ||
88 | |||
89 | for_each_cpu_mask(i, mask) | ||
90 | bcm1480_send_ipi_single(i, action); | ||
91 | } | ||
92 | |||
93 | /* | ||
94 | * Code to run on secondary just after probing the CPU | ||
95 | */ | ||
96 | static void __cpuinit bcm1480_init_secondary(void) | ||
97 | { | ||
98 | extern void bcm1480_smp_init(void); | ||
99 | |||
100 | bcm1480_smp_init(); | ||
101 | } | ||
102 | |||
103 | /* | ||
104 | * Do any tidying up before marking online and running the idle | ||
105 | * loop | ||
106 | */ | ||
107 | static void __cpuinit bcm1480_smp_finish(void) | ||
71 | { | 108 | { |
72 | extern void sb1480_clockevent_init(void); | 109 | extern void sb1480_clockevent_init(void); |
73 | 110 | ||
74 | sb1480_clockevent_init(); | 111 | sb1480_clockevent_init(); |
75 | local_irq_enable(); | 112 | local_irq_enable(); |
113 | bcm1480_smp_finish(); | ||
76 | } | 114 | } |
77 | 115 | ||
78 | /* | 116 | /* |
79 | * These are routines for dealing with the sb1250 smp capabilities | 117 | * Final cleanup after all secondaries booted |
80 | * independent of board/firmware | ||
81 | */ | 118 | */ |
119 | static void bcm1480_cpus_done(void) | ||
120 | { | ||
121 | } | ||
82 | 122 | ||
83 | /* | 123 | /* |
84 | * Simple enough; everything is set up, so just poke the appropriate mailbox | 124 | * Setup the PC, SP, and GP of a secondary processor and start it |
85 | * register, and we should be set | 125 | * running! |
86 | */ | 126 | */ |
87 | void core_send_ipi(int cpu, unsigned int action) | 127 | static void __cpuinit bcm1480_boot_secondary(int cpu, struct task_struct *idle) |
88 | { | 128 | { |
89 | __raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]); | 129 | int retval; |
130 | |||
131 | retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap, | ||
132 | __KSTK_TOS(idle), | ||
133 | (unsigned long)task_thread_info(idle), 0); | ||
134 | if (retval != 0) | ||
135 | printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); | ||
90 | } | 136 | } |
91 | 137 | ||
138 | /* | ||
139 | * Use CFE to find out how many CPUs are available, setting up | ||
140 | * phys_cpu_present_map and the logical/physical mappings. | ||
141 | * XXXKW will the boot CPU ever not be physical 0? | ||
142 | * | ||
143 | * Common setup before any secondaries are started | ||
144 | */ | ||
145 | static void __init bcm1480_smp_setup(void) | ||
146 | { | ||
147 | int i, num; | ||
148 | |||
149 | cpus_clear(phys_cpu_present_map); | ||
150 | cpu_set(0, phys_cpu_present_map); | ||
151 | __cpu_number_map[0] = 0; | ||
152 | __cpu_logical_map[0] = 0; | ||
153 | |||
154 | for (i = 1, num = 0; i < NR_CPUS; i++) { | ||
155 | if (cfe_cpu_stop(i) == 0) { | ||
156 | cpu_set(i, phys_cpu_present_map); | ||
157 | __cpu_number_map[i] = ++num; | ||
158 | __cpu_logical_map[num] = i; | ||
159 | } | ||
160 | } | ||
161 | printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num); | ||
162 | } | ||
163 | |||
164 | static void __init bcm1480_prepare_cpus(unsigned int max_cpus) | ||
165 | { | ||
166 | } | ||
167 | |||
168 | struct plat_smp_ops bcm1480_smp_ops = { | ||
169 | .send_ipi_single = bcm1480_send_ipi_single, | ||
170 | .send_ipi_mask = bcm1480_send_ipi_mask, | ||
171 | .init_secondary = bcm1480_init_secondary, | ||
172 | .smp_finish = bcm1480_smp_finish, | ||
173 | .cpus_done = bcm1480_cpus_done, | ||
174 | .boot_secondary = bcm1480_boot_secondary, | ||
175 | .smp_setup = bcm1480_smp_setup, | ||
176 | .prepare_cpus = bcm1480_prepare_cpus, | ||
177 | }; | ||
178 | |||
92 | void bcm1480_mailbox_interrupt(void) | 179 | void bcm1480_mailbox_interrupt(void) |
93 | { | 180 | { |
94 | int cpu = smp_processor_id(); | 181 | int cpu = smp_processor_id(); |
diff --git a/arch/mips/sibyte/cfe/Makefile b/arch/mips/sibyte/cfe/Makefile index a1214937b705..02b32e142adf 100644 --- a/arch/mips/sibyte/cfe/Makefile +++ b/arch/mips/sibyte/cfe/Makefile | |||
@@ -1,3 +1,2 @@ | |||
1 | lib-y = setup.o | 1 | lib-y = setup.o |
2 | lib-$(CONFIG_SMP) += smp.o | ||
3 | lib-$(CONFIG_SIBYTE_CFE_CONSOLE) += console.o | 2 | lib-$(CONFIG_SIBYTE_CFE_CONSOLE) += console.o |
diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c index dbd6e6fdd3f9..50d7c05e15b8 100644 --- a/arch/mips/sibyte/cfe/setup.c +++ b/arch/mips/sibyte/cfe/setup.c | |||
@@ -28,6 +28,7 @@ | |||
28 | #include <asm/bootinfo.h> | 28 | #include <asm/bootinfo.h> |
29 | #include <asm/reboot.h> | 29 | #include <asm/reboot.h> |
30 | #include <asm/sibyte/board.h> | 30 | #include <asm/sibyte/board.h> |
31 | #include <asm/smp-ops.h> | ||
31 | 32 | ||
32 | #include <asm/fw/cfe/cfe_api.h> | 33 | #include <asm/fw/cfe/cfe_api.h> |
33 | #include <asm/fw/cfe/cfe_error.h> | 34 | #include <asm/fw/cfe/cfe_error.h> |
@@ -232,6 +233,9 @@ static int __init initrd_setup(char *str) | |||
232 | 233 | ||
233 | #endif | 234 | #endif |
234 | 235 | ||
236 | extern struct plat_smp_ops sb_smp_ops; | ||
237 | extern struct plat_smp_ops bcm1480_smp_ops; | ||
238 | |||
235 | /* | 239 | /* |
236 | * prom_init is called just after the cpu type is determined, from setup_arch() | 240 | * prom_init is called just after the cpu type is determined, from setup_arch() |
237 | */ | 241 | */ |
@@ -340,6 +344,13 @@ void __init prom_init(void) | |||
340 | arcs_cmdline[CL_SIZE-1] = 0; | 344 | arcs_cmdline[CL_SIZE-1] = 0; |
341 | 345 | ||
342 | prom_meminit(); | 346 | prom_meminit(); |
347 | |||
348 | #if defined(CONFIG_SIBYTE_BCM112X) || defined(CONFIG_SIBYTE_SB1250) | ||
349 | register_smp_ops(&sb_smp_ops); | ||
350 | #endif | ||
351 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) | ||
352 | register_smp_ops(&bcm1480_smp_ops); | ||
353 | #endif | ||
343 | } | 354 | } |
344 | 355 | ||
345 | void __init prom_free_prom_memory(void) | 356 | void __init prom_free_prom_memory(void) |
diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c deleted file mode 100644 index 534a62912f21..000000000000 --- a/arch/mips/sibyte/cfe/smp.c +++ /dev/null | |||
@@ -1,110 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU General Public License | ||
6 | * as published by the Free Software Foundation; either version 2 | ||
7 | * of the License, or (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write to the Free Software | ||
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
17 | */ | ||
18 | |||
19 | #include <linux/init.h> | ||
20 | #include <linux/sched.h> | ||
21 | #include <linux/smp.h> | ||
22 | #include <asm/processor.h> | ||
23 | |||
24 | #include <asm/fw/cfe/cfe_api.h> | ||
25 | #include <asm/fw/cfe/cfe_error.h> | ||
26 | |||
27 | /* | ||
28 | * Use CFE to find out how many CPUs are available, setting up | ||
29 | * phys_cpu_present_map and the logical/physical mappings. | ||
30 | * XXXKW will the boot CPU ever not be physical 0? | ||
31 | * | ||
32 | * Common setup before any secondaries are started | ||
33 | */ | ||
34 | void __init plat_smp_setup(void) | ||
35 | { | ||
36 | int i, num; | ||
37 | |||
38 | cpus_clear(phys_cpu_present_map); | ||
39 | cpu_set(0, phys_cpu_present_map); | ||
40 | __cpu_number_map[0] = 0; | ||
41 | __cpu_logical_map[0] = 0; | ||
42 | |||
43 | for (i = 1, num = 0; i < NR_CPUS; i++) { | ||
44 | if (cfe_cpu_stop(i) == 0) { | ||
45 | cpu_set(i, phys_cpu_present_map); | ||
46 | __cpu_number_map[i] = ++num; | ||
47 | __cpu_logical_map[num] = i; | ||
48 | } | ||
49 | } | ||
50 | printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num); | ||
51 | } | ||
52 | |||
53 | void __init plat_prepare_cpus(unsigned int max_cpus) | ||
54 | { | ||
55 | } | ||
56 | |||
57 | /* | ||
58 | * Setup the PC, SP, and GP of a secondary processor and start it | ||
59 | * running! | ||
60 | */ | ||
61 | void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) | ||
62 | { | ||
63 | int retval; | ||
64 | |||
65 | retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap, | ||
66 | __KSTK_TOS(idle), | ||
67 | (unsigned long)task_thread_info(idle), 0); | ||
68 | if (retval != 0) | ||
69 | printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); | ||
70 | } | ||
71 | |||
72 | /* | ||
73 | * Code to run on secondary just after probing the CPU | ||
74 | */ | ||
75 | void __cpuinit prom_init_secondary(void) | ||
76 | { | ||
77 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) | ||
78 | extern void bcm1480_smp_init(void); | ||
79 | bcm1480_smp_init(); | ||
80 | #elif defined(CONFIG_SIBYTE_SB1250) | ||
81 | extern void sb1250_smp_init(void); | ||
82 | sb1250_smp_init(); | ||
83 | #else | ||
84 | #error invalid SMP configuration | ||
85 | #endif | ||
86 | } | ||
87 | |||
88 | /* | ||
89 | * Do any tidying up before marking online and running the idle | ||
90 | * loop | ||
91 | */ | ||
92 | void __cpuinit prom_smp_finish(void) | ||
93 | { | ||
94 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) | ||
95 | extern void bcm1480_smp_finish(void); | ||
96 | bcm1480_smp_finish(); | ||
97 | #elif defined(CONFIG_SIBYTE_SB1250) | ||
98 | extern void sb1250_smp_finish(void); | ||
99 | sb1250_smp_finish(); | ||
100 | #else | ||
101 | #error invalid SMP configuration | ||
102 | #endif | ||
103 | } | ||
104 | |||
105 | /* | ||
106 | * Final cleanup after all secondaries booted | ||
107 | */ | ||
108 | void prom_cpus_done(void) | ||
109 | { | ||
110 | } | ||
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c index 3f52c95a4eb8..0734b933e969 100644 --- a/arch/mips/sibyte/sb1250/smp.c +++ b/arch/mips/sibyte/sb1250/smp.c | |||
@@ -24,6 +24,7 @@ | |||
24 | 24 | ||
25 | #include <asm/mmu_context.h> | 25 | #include <asm/mmu_context.h> |
26 | #include <asm/io.h> | 26 | #include <asm/io.h> |
27 | #include <asm/fw/cfe/cfe_api.h> | ||
27 | #include <asm/sibyte/sb1250.h> | 28 | #include <asm/sibyte/sb1250.h> |
28 | #include <asm/sibyte/sb1250_regs.h> | 29 | #include <asm/sibyte/sb1250_regs.h> |
29 | #include <asm/sibyte/sb1250_int.h> | 30 | #include <asm/sibyte/sb1250_int.h> |
@@ -55,7 +56,43 @@ void __cpuinit sb1250_smp_init(void) | |||
55 | change_c0_status(ST0_IM, imask); | 56 | change_c0_status(ST0_IM, imask); |
56 | } | 57 | } |
57 | 58 | ||
58 | void __cpuinit sb1250_smp_finish(void) | 59 | /* |
60 | * These are routines for dealing with the sb1250 smp capabilities | ||
61 | * independent of board/firmware | ||
62 | */ | ||
63 | |||
64 | /* | ||
65 | * Simple enough; everything is set up, so just poke the appropriate mailbox | ||
66 | * register, and we should be set | ||
67 | */ | ||
68 | static void sb1250_send_ipi_single(int cpu, unsigned int action) | ||
69 | { | ||
70 | __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]); | ||
71 | } | ||
72 | |||
73 | static inline void sb1250_send_ipi_mask(cpumask_t mask, unsigned int action) | ||
74 | { | ||
75 | unsigned int i; | ||
76 | |||
77 | for_each_cpu_mask(i, mask) | ||
78 | sb1250_send_ipi_single(i, action); | ||
79 | } | ||
80 | |||
81 | /* | ||
82 | * Code to run on secondary just after probing the CPU | ||
83 | */ | ||
84 | static void __cpuinit sb1250_init_secondary(void) | ||
85 | { | ||
86 | extern void sb1250_smp_init(void); | ||
87 | |||
88 | sb1250_smp_init(); | ||
89 | } | ||
90 | |||
91 | /* | ||
92 | * Do any tidying up before marking online and running the idle | ||
93 | * loop | ||
94 | */ | ||
95 | static void __cpuinit sb1250_smp_finish(void) | ||
59 | { | 96 | { |
60 | extern void sb1250_clockevent_init(void); | 97 | extern void sb1250_clockevent_init(void); |
61 | 98 | ||
@@ -64,19 +101,68 @@ void __cpuinit sb1250_smp_finish(void) | |||
64 | } | 101 | } |
65 | 102 | ||
66 | /* | 103 | /* |
67 | * These are routines for dealing with the sb1250 smp capabilities | 104 | * Final cleanup after all secondaries booted |
68 | * independent of board/firmware | ||
69 | */ | 105 | */ |
106 | static void sb1250_cpus_done(void) | ||
107 | { | ||
108 | } | ||
70 | 109 | ||
71 | /* | 110 | /* |
72 | * Simple enough; everything is set up, so just poke the appropriate mailbox | 111 | * Setup the PC, SP, and GP of a secondary processor and start it |
73 | * register, and we should be set | 112 | * running! |
74 | */ | 113 | */ |
75 | void core_send_ipi(int cpu, unsigned int action) | 114 | static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle) |
76 | { | 115 | { |
77 | __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]); | 116 | int retval; |
117 | |||
118 | retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap, | ||
119 | __KSTK_TOS(idle), | ||
120 | (unsigned long)task_thread_info(idle), 0); | ||
121 | if (retval != 0) | ||
122 | printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); | ||
78 | } | 123 | } |
79 | 124 | ||
125 | /* | ||
126 | * Use CFE to find out how many CPUs are available, setting up | ||
127 | * phys_cpu_present_map and the logical/physical mappings. | ||
128 | * XXXKW will the boot CPU ever not be physical 0? | ||
129 | * | ||
130 | * Common setup before any secondaries are started | ||
131 | */ | ||
132 | static void __init sb1250_smp_setup(void) | ||
133 | { | ||
134 | int i, num; | ||
135 | |||
136 | cpus_clear(phys_cpu_present_map); | ||
137 | cpu_set(0, phys_cpu_present_map); | ||
138 | __cpu_number_map[0] = 0; | ||
139 | __cpu_logical_map[0] = 0; | ||
140 | |||
141 | for (i = 1, num = 0; i < NR_CPUS; i++) { | ||
142 | if (cfe_cpu_stop(i) == 0) { | ||
143 | cpu_set(i, phys_cpu_present_map); | ||
144 | __cpu_number_map[i] = ++num; | ||
145 | __cpu_logical_map[num] = i; | ||
146 | } | ||
147 | } | ||
148 | printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num); | ||
149 | } | ||
150 | |||
151 | static void __init sb1250_prepare_cpus(unsigned int max_cpus) | ||
152 | { | ||
153 | } | ||
154 | |||
155 | struct plat_smp_ops sb_smp_ops = { | ||
156 | .send_ipi_single = sb1250_send_ipi_single, | ||
157 | .send_ipi_mask = sb1250_send_ipi_mask, | ||
158 | .init_secondary = sb1250_init_secondary, | ||
159 | .smp_finish = sb1250_smp_finish, | ||
160 | .cpus_done = sb1250_cpus_done, | ||
161 | .boot_secondary = sb1250_boot_secondary, | ||
162 | .smp_setup = sb1250_smp_setup, | ||
163 | .prepare_cpus = sb1250_prepare_cpus, | ||
164 | }; | ||
165 | |||
80 | void sb1250_mailbox_interrupt(void) | 166 | void sb1250_mailbox_interrupt(void) |
81 | { | 167 | { |
82 | int cpu = smp_processor_id(); | 168 | int cpu = smp_processor_id(); |