diff options
author | Kyle McMartin <kyle@parisc-linux.org> | 2007-01-15 12:29:25 -0500 |
---|---|---|
committer | Kyle McMartin <kyle@athena.road.mcmartin.ca> | 2007-02-17 01:11:41 -0500 |
commit | 430a502abec76fd2fd9fd1df7506ccf911a6d6d2 (patch) | |
tree | f7ef175858a97587e22c5e9c6461e18d1253a166 /arch/parisc/kernel/smp.c | |
parent | 5492a0f001bdf5435318edb0a68eab5f16995bff (diff) |
[PARISC] kill ENTRY_SYS_CPUS
it's unlikely iCOD will ever happen on parisc-linux now... ;-)
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch/parisc/kernel/smp.c')
-rw-r--r-- | arch/parisc/kernel/smp.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index a5a730cea0f5..6ba9257fdb7f 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c | |||
@@ -16,9 +16,6 @@ | |||
16 | ** the Free Software Foundation; either version 2 of the License, or | 16 | ** the Free Software Foundation; either version 2 of the License, or |
17 | ** (at your option) any later version. | 17 | ** (at your option) any later version. |
18 | */ | 18 | */ |
19 | #undef ENTRY_SYS_CPUS /* syscall support for iCOD-like functionality */ | ||
20 | |||
21 | |||
22 | #include <linux/types.h> | 19 | #include <linux/types.h> |
23 | #include <linux/spinlock.h> | 20 | #include <linux/spinlock.h> |
24 | #include <linux/slab.h> | 21 | #include <linux/slab.h> |
@@ -116,13 +113,6 @@ enum ipi_message_type { | |||
116 | static void | 113 | static void |
117 | ipi_init(int cpuid) | 114 | ipi_init(int cpuid) |
118 | { | 115 | { |
119 | |||
120 | /* If CPU is present ... */ | ||
121 | #ifdef ENTRY_SYS_CPUS | ||
122 | /* *and* running (not stopped) ... */ | ||
123 | #error iCOD support wants state checked here. | ||
124 | #endif | ||
125 | |||
126 | #error verify IRQ_OFFSET(IPI_IRQ) is ipi_interrupt() in new IRQ region | 116 | #error verify IRQ_OFFSET(IPI_IRQ) is ipi_interrupt() in new IRQ region |
127 | 117 | ||
128 | if(cpu_online(cpuid) ) | 118 | if(cpu_online(cpuid) ) |
@@ -142,23 +132,12 @@ ipi_init(int cpuid) | |||
142 | static void | 132 | static void |
143 | halt_processor(void) | 133 | halt_processor(void) |
144 | { | 134 | { |
145 | #ifdef ENTRY_SYS_CPUS | ||
146 | #error halt_processor() needs rework | ||
147 | /* | ||
148 | ** o migrate I/O interrupts off this CPU. | ||
149 | ** o leave IPI enabled - __cli() will disable IPI. | ||
150 | ** o leave CPU in online map - just change the state | ||
151 | */ | ||
152 | cpu_data[this_cpu].state = STATE_STOPPED; | ||
153 | mark_bh(IPI_BH); | ||
154 | #else | ||
155 | /* REVISIT : redirect I/O Interrupts to another CPU? */ | 135 | /* REVISIT : redirect I/O Interrupts to another CPU? */ |
156 | /* REVISIT : does PM *know* this CPU isn't available? */ | 136 | /* REVISIT : does PM *know* this CPU isn't available? */ |
157 | cpu_clear(smp_processor_id(), cpu_online_map); | 137 | cpu_clear(smp_processor_id(), cpu_online_map); |
158 | local_irq_disable(); | 138 | local_irq_disable(); |
159 | for (;;) | 139 | for (;;) |
160 | ; | 140 | ; |
161 | #endif | ||
162 | } | 141 | } |
163 | 142 | ||
164 | 143 | ||
@@ -238,17 +217,11 @@ ipi_interrupt(int irq, void *dev_id) | |||
238 | 217 | ||
239 | case IPI_CPU_START: | 218 | case IPI_CPU_START: |
240 | smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_START\n", this_cpu); | 219 | smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_START\n", this_cpu); |
241 | #ifdef ENTRY_SYS_CPUS | ||
242 | p->state = STATE_RUNNING; | ||
243 | #endif | ||
244 | break; | 220 | break; |
245 | 221 | ||
246 | case IPI_CPU_STOP: | 222 | case IPI_CPU_STOP: |
247 | smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_STOP\n", this_cpu); | 223 | smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_STOP\n", this_cpu); |
248 | #ifdef ENTRY_SYS_CPUS | ||
249 | #else | ||
250 | halt_processor(); | 224 | halt_processor(); |
251 | #endif | ||
252 | break; | 225 | break; |
253 | 226 | ||
254 | case IPI_CPU_TEST: | 227 | case IPI_CPU_TEST: |
@@ -561,9 +534,6 @@ alive: | |||
561 | /* Remember the Slave data */ | 534 | /* Remember the Slave data */ |
562 | smp_debug(100, KERN_DEBUG "SMP: CPU:%d came alive after %ld _us\n", | 535 | smp_debug(100, KERN_DEBUG "SMP: CPU:%d came alive after %ld _us\n", |
563 | cpuid, timeout * 100); | 536 | cpuid, timeout * 100); |
564 | #ifdef ENTRY_SYS_CPUS | ||
565 | cpu_data[cpuid].state = STATE_RUNNING; | ||
566 | #endif | ||
567 | return 0; | 537 | return 0; |
568 | } | 538 | } |
569 | 539 | ||
@@ -571,10 +541,6 @@ void __devinit smp_prepare_boot_cpu(void) | |||
571 | { | 541 | { |
572 | int bootstrap_processor=cpu_data[0].cpuid; /* CPU ID of BSP */ | 542 | int bootstrap_processor=cpu_data[0].cpuid; /* CPU ID of BSP */ |
573 | 543 | ||
574 | #ifdef ENTRY_SYS_CPUS | ||
575 | cpu_data[0].state = STATE_RUNNING; | ||
576 | #endif | ||
577 | |||
578 | /* Setup BSP mappings */ | 544 | /* Setup BSP mappings */ |
579 | printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor); | 545 | printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor); |
580 | 546 | ||
@@ -613,101 +579,6 @@ int __cpuinit __cpu_up(unsigned int cpu) | |||
613 | return cpu_online(cpu) ? 0 : -ENOSYS; | 579 | return cpu_online(cpu) ? 0 : -ENOSYS; |
614 | } | 580 | } |
615 | 581 | ||
616 | |||
617 | |||
618 | #ifdef ENTRY_SYS_CPUS | ||
619 | /* Code goes along with: | ||
620 | ** entry.s: ENTRY_NAME(sys_cpus) / * 215, for cpu stat * / | ||
621 | */ | ||
622 | int sys_cpus(int argc, char **argv) | ||
623 | { | ||
624 | int i,j=0; | ||
625 | extern int current_pid(int cpu); | ||
626 | |||
627 | if( argc > 2 ) { | ||
628 | printk("sys_cpus:Only one argument supported\n"); | ||
629 | return (-1); | ||
630 | } | ||
631 | if ( argc == 1 ){ | ||
632 | |||
633 | #ifdef DUMP_MORE_STATE | ||
634 | for_each_online_cpu(i) { | ||
635 | int cpus_per_line = 4; | ||
636 | |||
637 | if (j++ % cpus_per_line) | ||
638 | printk(" %3d",i); | ||
639 | else | ||
640 | printk("\n %3d",i); | ||
641 | } | ||
642 | printk("\n"); | ||
643 | #else | ||
644 | printk("\n 0\n"); | ||
645 | #endif | ||
646 | } else if((argc==2) && !(strcmp(argv[1],"-l"))) { | ||
647 | printk("\nCPUSTATE TASK CPUNUM CPUID HARDCPU(HPA)\n"); | ||
648 | #ifdef DUMP_MORE_STATE | ||
649 | for_each_online_cpu(i) { | ||
650 | if (cpu_data[i].cpuid != NO_PROC_ID) { | ||
651 | switch(cpu_data[i].state) { | ||
652 | case STATE_RENDEZVOUS: | ||
653 | printk("RENDEZVS "); | ||
654 | break; | ||
655 | case STATE_RUNNING: | ||
656 | printk((current_pid(i)!=0) ? "RUNNING " : "IDLING "); | ||
657 | break; | ||
658 | case STATE_STOPPED: | ||
659 | printk("STOPPED "); | ||
660 | break; | ||
661 | case STATE_HALTED: | ||
662 | printk("HALTED "); | ||
663 | break; | ||
664 | default: | ||
665 | printk("%08x?", cpu_data[i].state); | ||
666 | break; | ||
667 | } | ||
668 | if(cpu_online(i)) { | ||
669 | printk(" %4d",current_pid(i)); | ||
670 | } | ||
671 | printk(" %6d",cpu_number_map(i)); | ||
672 | printk(" %5d",i); | ||
673 | printk(" 0x%lx\n",cpu_data[i].hpa); | ||
674 | } | ||
675 | } | ||
676 | #else | ||
677 | printk("\n%s %4d 0 0 --------", | ||
678 | (current->pid)?"RUNNING ": "IDLING ",current->pid); | ||
679 | #endif | ||
680 | } else if ((argc==2) && !(strcmp(argv[1],"-s"))) { | ||
681 | #ifdef DUMP_MORE_STATE | ||
682 | printk("\nCPUSTATE CPUID\n"); | ||
683 | for_each_online_cpu(i) { | ||
684 | if (cpu_data[i].cpuid != NO_PROC_ID) { | ||
685 | switch(cpu_data[i].state) { | ||
686 | case STATE_RENDEZVOUS: | ||
687 | printk("RENDEZVS");break; | ||
688 | case STATE_RUNNING: | ||
689 | printk((current_pid(i)!=0) ? "RUNNING " : "IDLING"); | ||
690 | break; | ||
691 | case STATE_STOPPED: | ||
692 | printk("STOPPED ");break; | ||
693 | case STATE_HALTED: | ||
694 | printk("HALTED ");break; | ||
695 | default: | ||
696 | } | ||
697 | printk(" %5d\n",i); | ||
698 | } | ||
699 | } | ||
700 | #else | ||
701 | printk("\n%s CPU0",(current->pid==0)?"RUNNING ":"IDLING "); | ||
702 | #endif | ||
703 | } else { | ||
704 | printk("sys_cpus:Unknown request\n"); | ||
705 | return (-1); | ||
706 | } | ||
707 | return 0; | ||
708 | } | ||
709 | #endif /* ENTRY_SYS_CPUS */ | ||
710 | |||
711 | #ifdef CONFIG_PROC_FS | 582 | #ifdef CONFIG_PROC_FS |
712 | int __init | 583 | int __init |
713 | setup_profiling_timer(unsigned int multiplier) | 584 | setup_profiling_timer(unsigned int multiplier) |