mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

[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>
This commit is contained in:
Kyle McMartin 2007-01-15 12:29:25 -05:00 committed by Kyle McMartin
parent 5492a0f001
commit 430a502abe
3 changed files with 0 additions and 140 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/parisc/kernel/processor.c
View File

@ -337,9 +337,6 @@ show_cpuinfo (struct seq_file *m, void *v)
#ifdef CONFIG_SMP
if (0 == cpu_data[n].hpa)
continue;
#ifdef ENTRY_SYS_CPUS
#error iCOD support wants to show CPU state here
#endif
#endif
seq_printf(m, "processor\t: %d\n"
"cpu family\t: PA-RISC %s\n",

129
arch/parisc/kernel/smp.c
View File

@ -16,9 +16,6 @@
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
*/
#undef ENTRY_SYS_CPUS /* syscall support for iCOD-like functionality */
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
@ -116,13 +113,6 @@ enum ipi_message_type {
static void
ipi_init(int cpuid)
{
/* If CPU is present ... */
#ifdef ENTRY_SYS_CPUS
/* *and* running (not stopped) ... */
#error iCOD support wants state checked here.
#endif
#error verify IRQ_OFFSET(IPI_IRQ) is ipi_interrupt() in new IRQ region
if(cpu_online(cpuid) )
@ -142,23 +132,12 @@ ipi_init(int cpuid)
static void
halt_processor(void)
{
#ifdef ENTRY_SYS_CPUS
#error halt_processor() needs rework
/*
** o migrate I/O interrupts off this CPU.
** o leave IPI enabled - __cli() will disable IPI.
** o leave CPU in online map - just change the state
*/
cpu_data[this_cpu].state = STATE_STOPPED;
mark_bh(IPI_BH);
#else
/* REVISIT : redirect I/O Interrupts to another CPU? */
/* REVISIT : does PM *know* this CPU isn't available? */
cpu_clear(smp_processor_id(), cpu_online_map);
local_irq_disable();
for (;;)
;
#endif
}
@ -238,17 +217,11 @@ ipi_interrupt(int irq, void *dev_id)
case IPI_CPU_START:
smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_START\n", this_cpu);
#ifdef ENTRY_SYS_CPUS
p->state = STATE_RUNNING;
#endif
break;
case IPI_CPU_STOP:
smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_STOP\n", this_cpu);
#ifdef ENTRY_SYS_CPUS
#else
halt_processor();
#endif
break;
case IPI_CPU_TEST:
@ -561,9 +534,6 @@ alive:
/* Remember the Slave data */
smp_debug(100, KERN_DEBUG "SMP: CPU:%d came alive after %ld _us\n",
cpuid, timeout * 100);
#ifdef ENTRY_SYS_CPUS
cpu_data[cpuid].state = STATE_RUNNING;
#endif
return 0;
}
@ -571,10 +541,6 @@ void __devinit smp_prepare_boot_cpu(void)
{
int bootstrap_processor=cpu_data[0].cpuid; /* CPU ID of BSP */
#ifdef ENTRY_SYS_CPUS
cpu_data[0].state = STATE_RUNNING;
#endif
/* Setup BSP mappings */
printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor);
@ -613,101 +579,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
return cpu_online(cpu) ? 0 : -ENOSYS;
}
#ifdef ENTRY_SYS_CPUS
/* Code goes along with:
** entry.s: ENTRY_NAME(sys_cpus) / * 215, for cpu stat * /
*/
int sys_cpus(int argc, char **argv)
{
int i,j=0;
extern int current_pid(int cpu);
if( argc > 2 ) {
printk("sys_cpus:Only one argument supported\n");
return (-1);
}
if ( argc == 1 ){
#ifdef DUMP_MORE_STATE
for_each_online_cpu(i) {
int cpus_per_line = 4;
if (j++ % cpus_per_line)
printk(" %3d",i);
else
printk("\n %3d",i);
}
printk("\n");
#else
printk("\n 0\n");
#endif
} else if((argc==2) && !(strcmp(argv[1],"-l"))) {
printk("\nCPUSTATE TASK CPUNUM CPUID HARDCPU(HPA)\n");
#ifdef DUMP_MORE_STATE
for_each_online_cpu(i) {
if (cpu_data[i].cpuid != NO_PROC_ID) {
switch(cpu_data[i].state) {
case STATE_RENDEZVOUS:
printk("RENDEZVS ");
break;
case STATE_RUNNING:
printk((current_pid(i)!=0) ? "RUNNING " : "IDLING ");
break;
case STATE_STOPPED:
printk("STOPPED ");
break;
case STATE_HALTED:
printk("HALTED ");
break;
default:
printk("%08x?", cpu_data[i].state);
break;
}
if(cpu_online(i)) {
printk(" %4d",current_pid(i));
}
printk(" %6d",cpu_number_map(i));
printk(" %5d",i);
printk(" 0x%lx\n",cpu_data[i].hpa);
}
}
#else
printk("\n%s %4d 0 0 --------",
(current->pid)?"RUNNING ": "IDLING ",current->pid);
#endif
} else if ((argc==2) && !(strcmp(argv[1],"-s"))) {
#ifdef DUMP_MORE_STATE
printk("\nCPUSTATE CPUID\n");
for_each_online_cpu(i) {
if (cpu_data[i].cpuid != NO_PROC_ID) {
switch(cpu_data[i].state) {
case STATE_RENDEZVOUS:
printk("RENDEZVS");break;
case STATE_RUNNING:
printk((current_pid(i)!=0) ? "RUNNING " : "IDLING");
break;
case STATE_STOPPED:
printk("STOPPED ");break;
case STATE_HALTED:
printk("HALTED ");break;
default:
}
printk(" %5d\n",i);
}
}
#else
printk("\n%s CPU0",(current->pid==0)?"RUNNING ":"IDLING ");
#endif
} else {
printk("sys_cpus:Unknown request\n");
return (-1);
}
return 0;
}
#endif /* ENTRY_SYS_CPUS */
#ifdef CONFIG_PROC_FS
int __init
setup_profiling_timer(unsigned int multiplier)

8
include/asm-parisc/smp.h
View File

@ -41,14 +41,6 @@ extern void smp_send_all_nop(void);
#define PROC_CHANGE_PENALTY 15 /* Schedule penalty */
#undef ENTRY_SYS_CPUS
#ifdef ENTRY_SYS_CPUS
#define STATE_RENDEZVOUS 0
#define STATE_STOPPED 1
#define STATE_RUNNING 2
#define STATE_HALTED 3
#endif
extern unsigned long cpu_present_mask;
#define raw_smp_processor_id() (current_thread_info()->cpu)