Lock;
short machs;
short exiting;
- short ispanic;
}active;
/*
cpu->state |= (halt? Cpuhaltstayhalted: Cpuhaltwarmboot);
}
-/* from ../pc */
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- print("cpu%d: exiting\n", m->machno);
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
-
- if(active.ispanic && m->machno == 0) {
- if(cpuserver)
- delay(10000);
- else
- for (;;)
- continue;
- } else
- delay(1000);
-}
-
-/* from ../pc: */
void
-reboot(void *entry, void *code, ulong size)
+reboot(void *, void *, ulong)
{
- // writeconf(); // pass kernel environment to next kernel
- shutdown(0);
-
- /*
- * should be the only processor running now
- */
- print("shutting down...\n");
- delay(200);
-
- splhi();
-
- /* turn off buffered serial console */
- serialoq = nil;
-
- /* shutdown devices */
- chandevshutdown();
-
-#ifdef FUTURE
-{
- ulong *pdb;
- /*
- * Modify the machine page table to directly map the low 4MB of memory
- * This allows the reboot code to turn off the page mapping
- */
- pdb = m->pdb;
- pdb[PDX(0)] = pdb[PDX(KZERO)];
- mmuflushtlb(PADDR(pdb));
-}
- /* setup reboot trampoline function */
-{
- void (*f)(ulong, ulong, ulong) = (void*)REBOOTADDR;
-
- memmove(f, rebootcode, sizeof(rebootcode));
-#else
- USED(entry, code, size);
-#endif
-
- print("rebooting...\n");
-#ifdef FUTURE
- /* off we go - never to return */
- (*f)(PADDR(entry), PADDR(code), size);
-}
-#endif
- setupboot(0); // reboot, don't halt
- exit(0);
}
void
-exit(int ispanic)
+exit(int)
{
- canlock(&active);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- spllo();
- print("cpu %d exiting\n", m->machno);
- do
- delay(100);
- while(consactive());
-
+ cpushutdown();
splhi();
- delay(1000); /* give serial fifo time to finish flushing */
- if (getconf("*debug") != nil) {
- USED(ispanic);
- delay(60*1000); /* give us time to read the screen */
- }
if(arch->coredetach)
arch->coredetach();
setupboot(1); // set up to halt
- for (; ; )
+ for (;;)
firmware();
-
- // on PC is just:
- //if (0) {
- // shutdown(ispanic);
- // arch->reset();
- //}
}
void
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
}active;
extern register Mach* m; /* R10 */
}
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- iprint("cpu%d: exiting\n", m->machno);
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
- delay(1000);
-}
-
/*
* exit kernel either on a panic or user request
*/
void
-exit(int code)
+exit(int)
{
- shutdown(code);
+ cpushutdown();
splfhi();
archreboot();
}
{
void (*f)(ulong, ulong, ulong);
- print("starting reboot...");
writeconf();
- shutdown(0);
-
- /*
- * should be the only processor running now
- */
-
- print("reboot entry %#lux code %#lux size %ld\n",
- PADDR(entry), PADDR(code), size);
- delay(100);
+ cpushutdown();
/* turn off buffered serial console */
serialoq = nil;
/* off we go - never to return */
(*f)(PADDR(entry), PADDR(code), size);
-
- iprint("loaded kernel returned!\n");
- delay(1000);
- archreboot();
}
int
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
}active;
#define MACHP(n) ((Mach *)(MACHADDR+(n)*BY2PG))
void
reboot(void*, void*, ulong)
{
- exit(0);
}
* exit kernel either on a panic or user request
*/
void
-exit(int ispanic)
+exit(int)
{
void (*f)(void);
- USED(ispanic);
- delay(1000);
-
+ cpushutdown();
+ splhi();
iprint("it's a wonderful day to die\n");
cacheflush();
mmuinvalidate();
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
}active;
enum {
up = nil;
}
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- iprint("cpu%d: exiting\n", m->machno);
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
- delay(1000);
-}
-
/*
* exit kernel either on a panic or user request
*/
void
-exit(int code)
+exit(int)
{
- shutdown(code);
+ cpushutdown();
splhi();
archreboot();
}
{
void (*f)(ulong, ulong, ulong);
- iprint("starting reboot...");
writeconf();
-
- shutdown(0);
-
- /*
- * should be the only processor running now
- */
-
- print("shutting down...\n");
- delay(200);
+ cpushutdown();
/* turn off buffered serial console */
serialoq = nil;
cacheuwbinv();
l2cacheuwb();
- print("rebooting...");
- iprint("entry %#lux code %#lux size %ld\n",
- PADDR(entry), PADDR(code), size);
- delay(100); /* wait for uart to quiesce */
-
/* off we go - never to return */
cacheuwbinv();
l2cacheuwb();
(*f)(PADDR(entry), PADDR(code), size);
-
- iprint("loaded kernel returned!\n");
- delay(1000);
- archreboot();
}
/*
Lock;
short machs;
short exiting;
- short ispanic;
}active;
/*
void
reboot(void*, void*, ulong)
{
- exit(0);
}
void
-exit(int ispanic)
+exit(int)
{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- print("cpu%d: exiting\n", m->machno);
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
-
- if(active.ispanic && m->machno == 0){
- if(cpuserver)
- delay(10000);
- else if(conf.monitor)
- for(;;);
- }
- else
- delay(1000);
-
+ cpushutdown();
watchreset();
}
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
}active;
extern register Mach* m; /* R10 */
up = nil;
}
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- iprint("cpu%d: exiting\n", m->machno);
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
- delay(1000);
-}
-
/*
* exit kernel either on a panic or user request
*/
void
-exit(int code)
+exit(int)
{
- shutdown(code);
+ cpushutdown();
splhi();
archreboot();
}
{
void (*f)(ulong, ulong, ulong);
- print("starting reboot...");
writeconf();
- shutdown(0);
-
- /*
- * should be the only processor running now
- */
-
- print("reboot entry %#lux code %#lux size %ld\n",
- PADDR(entry), PADDR(code), size);
- delay(100);
+ cpushutdown();
/* turn off buffered serial console */
serialoq = nil;
/* off we go - never to return */
(*f)(PADDR(entry), PADDR(code), size);
-
- iprint("loaded kernel returned!\n");
- delay(1000);
- archreboot();
}
/*
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
}active;
extern Mach *m;
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
int thunderbirdsarego; /* lets the added processors continue to schedinit */
}active;
pcimatch(0, 0, 0);
}else
links();
- conf.monitor = 1;
chandevreset();
pageinit();
swapinit();
mmuflushtlb(PADDR(m->pdb));
}
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- /*
- * setting exiting will make hzclock() on each processor call exit(0),
- * which calls shutdown(0) and arch->reset(), which on mp systems calls
- * mpshutdown(), from which there is no return: the processor is idled
- * or initiates a reboot. clearing our bit in machs avoids calling
- * exit(0) from hzclock() on this processor.
- */
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- iprint("cpu%d: exiting\n", m->machno);
-
- /* wait for any other processors to shutdown */
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
-
- if(active.ispanic){
- if(!cpuserver)
- for(;;)
- halt();
- if(getconf("*debug"))
- delay(5*60*1000);
- else
- delay(10000);
- }
-}
-
void
reboot(void *entry, void *code, ulong size)
{
procwired(up, 0);
sched();
}
- shutdown(0);
-
- iprint("shutting down...\n");
- delay(200);
+ cpushutdown();
splhi();
void
-exit(int ispanic)
+exit(int)
{
- shutdown(ispanic);
+ cpushutdown();
arch->reset();
}
scr->cur = &swcursor;
scr->cur->enable(scr);
cursoron();
+
+ conf.monitor = 1;
}
/*
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
int thunderbirdsarego; /* lets the added processors continue to schedinit */
}active;
pcimatch(0, 0, 0);
}else
links();
- conf.monitor = 1;
chandevreset();
preallocpages();
pageinit();
schedinit();
}
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- /*
- * setting exiting will make hzclock() on each processor call exit(0),
- * which calls shutdown(0) and arch->reset(), which on mp systems calls
- * mpshutdown(), from which there is no return: the processor is idled
- * or initiates a reboot. clearing our bit in machs avoids calling
- * exit(0) from hzclock() on this processor.
- */
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- iprint("cpu%d: exiting\n", m->machno);
-
- /* wait for any other processors to shutdown */
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
-
- if(active.ispanic){
- if(!cpuserver)
- for(;;)
- halt();
- if(getconf("*debug"))
- delay(5*60*1000);
- else
- delay(10000);
- }
-}
-
void
-exit(int ispanic)
+exit(int)
{
- shutdown(ispanic);
+ cpushutdown();
arch->reset();
}
procwired(up, 0);
sched();
}
- shutdown(0);
-
- iprint("shutting down...\n");
- delay(200);
+ cpushutdown();
splhi();
if(ialloc.bytes > conf.ialloc){
if((m1++%10000)==0){
- if(mp++ > 1000){
- active.exiting = 1;
- exit(0);
- }
+ if(mp++ > 1000)
+ panic("iallocb: out of memory");
iprint("iallocb: limited %lud/%lud\n",
ialloc.bytes, conf.ialloc);
}
if((b = _allocb(size)) == nil){
if((m2++%10000)==0){
- if(mp++ > 1000){
- active.exiting = 1;
- exit(0);
- }
+ if(mp++ > 1000)
+ panic("iallocb: out of memory");
iprint("iallocb: no memory %lud/%lud\n",
ialloc.bytes, conf.ialloc);
}
splx(s);
prflush();
dumpstack();
- if(!cpuserver)
- for(;;);
- exit(1);
+
+ /* reboot cpu servers and headless machines when not debugging */
+ if(getconf("*debug") == nil)
+ if(cpuserver || !conf.monitor)
+ exit(1);
+
+ /* otherwise, just hang */
+ while(islo()) idlehands();
+ for(;;);
}
/* libmp at least contains a few calls to sysfatal; simulate with panic */
}
return n;
}
+
+void
+cpushutdown(void)
+{
+ int ms, once;
+
+ lock(&active);
+ once = active.machs & (1<<m->machno);
+ active.machs &= ~(1<<m->machno);
+ active.exiting = 1;
+ unlock(&active);
+
+ if(once)
+ iprint("cpu%d: exiting\n", m->machno);
+
+ /* wait for any other processors to shutdown */
+ spllo();
+ for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
+ delay(TK2MS(2));
+ if(active.machs == 0 && consactive() == 0)
+ break;
+ }
+}
void confinit(void);
int consactive(void);
void (*consdebug)(void);
+void cpushutdown(void);
void copen(Chan*);
void cclunk(Chan*);
Block* concatblock(Block*);
setbootcmd(argc-1, argv+1);
reboot((void*)entry, p, size);
-
- panic("return from reboot!");
+ error(Egreg);
}
Block *b;
static int m1, m2, mp;
- if(0 && ucialloc.bytes > conf.ialloc){
- if((m1++%10000)==0){
- if(mp++ > 1000){
- active.exiting = 1;
- exit(0);
- }
- iprint("uciallocb: limited %lud/%lud\n",
- ucialloc.bytes, conf.ialloc);
- }
- return nil;
- }
-
if((b = _ucallocb(size)) == nil){
if(0 && (m2++%10000)==0){
- if(mp++ > 1000){
- active.exiting = 1;
- exit(0);
- }
+ if(mp++ > 1000)
+ panic("uciallocb: out of memory");
iprint("uciallocb: no memory %lud/%lud\n",
ucialloc.bytes, conf.ialloc);
}
Lock;
short machs;
short exiting;
- short ispanic;
}active;
/*
}
void
-exit(int ispanic)
+exit(int)
{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- print("cpu%d: exiting\n", m->machno);
- spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
-
- if(active.ispanic && m->machno == 0){
- if(cpuserver)
- delay(10000);
- else if(conf.monitor)
- for(;;);
- }
- else
- delay(1000);
-
+ cpushutdown();
+ for(;;) idlehands();
}
/*
*/
imagmem->maxsize = kpages;
}
-
-// conf.monitor = 1; /* BUG */
}
static int
Lock;
long machs; /* bitmap of processors */
short exiting;
- int ispanic;
}active;
extern register Mach *m;
}
void
-exit(int ispanic)
+exit(int)
{
+ cpushutdown();
splhi();
- while(ispanic);
arcs(0x18); /* reboot */
}
int wfi; /* bitmap of CPUs in WFI state */
int stopped; /* bitmap of CPUs stopped */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
int thunderbirdsarego; /* lets the added processors continue to schedinit */
}active;
panic("cpu%d: schedinit returned", m->machno);
}
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- /*
- * setting exiting will make hzclock() on each processor call exit(0),
- * which calls shutdown(0) and idles non-bootstrap cpus and returns
- * on bootstrap processors (to permit a reboot). clearing our bit
- * in machs avoids calling exit(0) from hzclock() on this processor.
- */
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once) {
- delay(m->machno*1000); /* stagger them */
- iprint("cpu%d: exiting\n", m->machno);
- }
- spllo();
- if (m->machno == 0)
- ms = 5*1000;
- else
- ms = 2*1000;
- for(; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
- delay(500);
-}
-
/*
* exit kernel either on a panic or user request
*/
void
-exit(int code)
+exit(int)
{
- shutdown(code);
+ cpushutdown();
splhi();
if (m->machno == 0)
archreboot();
void
reboot(void *entry, void *code, ulong size)
{
- int cpu, nmach, want, ms;
void (*f)(ulong, ulong, ulong);
- nmach = conf.nmach;
writeconf();
/*
procwired(up, 0);
sched();
}
- if (m->machno != 0)
- print("on cpu%d (not 0)!\n", m->machno);
-
- /*
- * the other cpus could be holding locks that will never get
- * released (e.g., in the print path) if we put them into
- * reset now, so force them to shutdown gracefully first.
- */
- for (want = 0, cpu = 1; cpu < navailcpus; cpu++)
- want |= 1 << cpu;
- active.stopped = 0;
- shutdown(0);
- for (ms = 15*1000; ms > 0 && active.stopped != want; ms -= 10)
- delay(10);
- delay(20);
- if (active.stopped != want) {
- for (cpu = 1; cpu < nmach; cpu++)
- stopcpu(cpu); /* make really sure */
- delay(20);
- }
+ cpushutdown();
/*
* should be the only processor running now
*/
pcireset();
-// print("reboot entry %#lux code %#lux size %ld\n",
-// PADDR(entry), PADDR(code), size);
/* turn off buffered serial console */
serialoq = nil;
/* off we go - never to return */
(*f)(PADDR(entry), PADDR(code), size);
-
- iprint("loaded kernel returned!\n");
- archreboot();
}
/*
mmuflushtlb(0);
}
-static void
-shutdown(int ispanic)
-{
- int ms, once;
-
- lock(&active);
- if(ispanic)
- active.ispanic = ispanic;
- else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
- active.ispanic = 0;
- once = active.machs & (1<<m->machno);
- active.machs &= ~(1<<m->machno);
- active.exiting = 1;
- unlock(&active);
-
- if(once)
- print("cpu%d: exiting\n", m->machno);
- //spllo();
- for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
- delay(TK2MS(2));
- if(active.machs == 0 && consactive() == 0)
- break;
- }
-
- if(getconf("*debug"))
- delay(5*60*1000);
-
- if(active.ispanic){
- if(!cpuserver)
- for(;;)
- halt();
- delay(10000);
- }else
- delay(1000);
-}
-
void
reboot(void *entry, void *code, ulong size)
{
void (*f)(ulong, ulong, ulong);
- //ulong *pdb;
writeconf();
-
- shutdown(0);
-
- /*
- * should be the only processor running now
- */
-
- print("shutting down...\n");
- delay(200);
+ cpushutdown();
splhi();
if(entry == 0)
HYPERVISOR_shutdown(0);
- /*
- * Modify the machine page table to directly map the low 4MB of memory
- * This allows the reboot code to turn off the page mapping
- */
- //pdb = m->pdb;
- //pdb[PDX(0)] = pdb[PDX(KZERO)];
mmuflushtlb(0);
/* setup reboot trampoline function */
f = (void*)REBOOTADDR;
memmove(f, rebootcode, sizeof(rebootcode));
- print("rebooting...\n");
-
/* off we go - never to return */
(*f)(PADDR(entry), PADDR(code), size);
}
-
void
-exit(int ispanic)
+exit(int)
{
- shutdown(ispanic);
+ cpushutdown();
arch->reset();
}
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
- int ispanic; /* shutdown in response to a panic */
}active;
extern register Mach* m; /* R10 */
void
exit(int)
{
- NOPE
+ cpushutdown();
+ for(;;) idlehands();
}
void
reboot(void *, void *, ulong)
{
- NOPE
}
void
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