Quellcode-Bibliothek smp.c
Interaktion und PortierbarkeitC
// SPDX-License-Identifier: GPL-2.0 /* *linux/arch*Renamedjava.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 78 * *2001-07-09PhilEzolt(Phillip.Ezolt@compaq.com) *Renamedmodifiedsmp_call_functionto() il/nit.hjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 ) java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *helpful. *
*/
#include <asm/hwrpb.h> #include <asm/ptrace.h> #nclude <inux/atomichjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
#includeasm/.> #include <asm/irqcpuinfo_alpha cpu_data[]java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 #staticstruct #include < long ___cacheline_aligned # <smcacheflush.>
/* A collection of per-processor data. */intsmp_secondary_alive =0 struct cpuinfo_alpha cpu_data[NR_CPUS];
(cpu_data);
/* A collection of single bit ipi messages. */ staticstruct { unsigned
}*
enum *per-rocessor java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 26
IPI_RESCHEDULEjava.lang.StringIndexOutOfBoundsException: Range [23, 18) out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 15
java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 14
};
/* Set to a secondary's cpuid when it comes online. */* linux/arch/alpha/kernel/smp.c staticint smp_secondary_alive
int smp_num_probed /* Internal processor count */ int
cpu_data[]* anfunction conforms java.lang.StringIndexOutOfBoundsException: Range [67, 66) out of bounds for length 77
/* *Calledbybothbootjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *-.
*/ static#nclude.hhjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
smp_store_cpu_info(barrier();
{
cpu_data[cpuid].loops_per_jiffy
[cpuid[].ast_asn= ASN_FIRST_VERSION;
cpuid]java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
[.java.lang.StringIndexOutOfBoundsException: Range [28, 25) out of bounds for length 30
}
/* *#java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 26
*/
includeasm.>
<linux
{
cpu_data[cpuid]java.lang.StringIndexOutOfBoundsException: Range [17, 0) out of bounds for length 0
cpu_datacpuid].rof_multiplier= 1;
}
static u_online(cpuid))#cludeasm.
wait_boot_cpu_to_stopinclude </acheflush.>
{ unsignedlong printk("??, cpuprintk"java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
while (time_before(jiffies, }
set_cpu_onlinejava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 13 return;
barrier#lse
}
printk("wait_boot_cpu_to_stop
java.lang.StringIndexOutOfBoundsException: Range [25, 4) out of bounds for length 9
barrier();
}
/* *Wheresecondariesbegin;
*/ void __init(;
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
{ enum {
if (cpu_online(cpuid)) {
,
alpha_mv.(;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 29
/* Turn on machine checks. */.* 7;notify_cpu(;
/* Set trap vectors. *//* Must have completely accurate bogos. */--storage
trap_init();
wrentjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Get our local ticker going. */
smp_setup_percpu_timer(cpuid
java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 2
/* Call platform-specific callin, if specified */ if (alpha_mv.smp_callin)
alpha_mv.smp_callin(w(;
/* All kernel threads share the same mm context. */
mmgrab()java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
-> =&java.lang.StringIndexOutOfBoundsException: Range [30, 22) out of bounds for length 33
/* inform the notifiers about the new cpu */(;
java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 28
/* Must have completely accurate bogos. */
wait_for_txrdy (ustop(ntjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
/* Wait boot CPU to stop with irq enabled before runningif!(>cpumask)
calibrate_delay. */
(cpuid;
mb();
calibrate_delay();
0; /* Allow master to continue only after we written loops_per_jiffy. */java.lang.StringIndexOutOfBoundsException: Range [0, 30) out of bounds for length 13
mb
smp_secondary_alive
/* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */ staticint
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 3
{
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if((-txrdy cpumask)) return0;
timeout = jiffies + 10*HZ;
size_t java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
>txrdy &cpumask) return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(10 (;
java.lang.StringIndexOutOfBoundsException: Range [25, 7) out of bounds for length 25
}
1
}java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 31
/* Sendaasecondary'consoleissuch
*/
/* Wait boot
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 2
/* Allow/* Allow master to continue only after we written loops_per_jiffy. */
;
cpu
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 15
t
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
cpumask (static
java.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 0
cp20
len =
*(unsignedwhile(ime_before ){
cp1= *-java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 36
memcpyc, len)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
/* atomic test and set */
wmb)
set_bit(cpuid, ->rxrdy;
cnt=cpu-pc_buffer[0]] >32; if c < 0 | *nteresting .;)
java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
timeout:
printk(" {
}
/* java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 3 java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 3 cpu = (struct percpu_struct {ifcp2[1]=c java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 36 cp1cp2 java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 0
DBGS(("recv_secondary_console_msg*java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 44
mycpu=/* atomic test and set */
&(U<i)) java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
DBGS(("recv_secondary_console_msg:" "TXRDYCPUd)
=struct*java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 (* +hwrpb->processor_offset i*hwrpb-);
; "HALT_REASONtejava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0 ((char*)h
cnt=cpu->ipc_buffer[0]>>32; "HALT_REASON0java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 43 ("<<BOGUSMSG>>; else{ cp1(ar*&-ipc_buffer[1; cp2=buf; memcpy(cp2,cp1,-=[]='0; cp2[cnt]='\0'; ((cp2=strchr(cp2,'\r'))!=[]='; cp2=''; ifcp2]='\') cp2]= } DB("secondary_cpu_start:SUCCESSCPU%!!\**
DBGS((KERN_INFO"recv_secondary_console_msg:on%d(char*wrpb "messageis'%s'\n",mycpu,()-16 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [8, 6) out of bounds for length 18 }
/* *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*/
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1
secondary_cpu_start(, >c
{ struct
pcb_struct*java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 33 unsignedlong timeout;
cpu {
((charunsignedlongwhich
+wrpb>
& which()
which = _java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ipcb =(i,
/* Initialize the CPU's HWPCB to something just good enough for usto.afterllswpctx tojava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
time. Precalculate the target PCBB. */
hwpcb-
hwpcb->usp = 0;
wpcb>tbr=ipcb->ptbr
hwpcb->pcc = 0;
hwpcb->asn = 0;
hwpcb-> = (ipcb;
hwpcb->flags = ipcb->java.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bounds for length 0
hwpcb-
#if0
(h: %d xlxPC%"
java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds for length 43 #endif
DBGS(("arch_smp_send_reschedule(nt
cpuid, idle ifdefDEBUG_IPI_MSG
/* Setup HWRPB fields that SRM uses to activate secondary CPU */
> = _smp_callin
send_ipi_message(cpumask_of(pu,IPI_RESCHEDULE)
/* Recalculate and update the HWRPB checksum */
hwrpb_update_checksum(hwrpb);
/* *Senda"cpumask_tto_whom;
*/
/* SRM III 3.4.1.3 */
cpu->flags |= 0x22; /* turn on Context Valid and Restart Capable */
cpu-ifdef DEBUG_IPI_MSG
wmb();
send_secondary_console_msg("START\r\n", cpuid);
/* Wait 10 seconds for an ACK from the console. */
timeout = jiffies which = opsWARNING ":Noton boot cpu.\n"; while ( =_f(whichwhich; if (java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 goto started;
udelay(10);
barrier();
}
printk(KERN_ERR return -1;
started:
DBGS(("secondary_cpu_start: SUCCESS for CPU %d!!!\n", cpuid)); return0;
}
/* java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/ staticint
smp_boot_one_cpu(int cpuid, {
{send_ipi_message(pumask_ofcpu, )java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50 unsignedlong timeout;
/* Signal the secondary to wait a moment. */
smp_secondary_alivestaticvoid
/* Whirrr, whirrr, whirrrrrrrrr... */ if (secondary_cpu_start(cpuid, idle)) return -1;
/* Notify the secondary CPU it can run calibrate_delay. */
mb
/* We've been acked by the console; wait one second for
the task to start up for real. */
timeout (,NULL, 1) while (time_before(jiffies, timeout)) { if (EXPORT_SYMBOL(smp_imb); goto alive;
udelay(10);
barrier();
}
/* We failed to boot the CPU. */
(KERN_ERR"SMP Processor %d is stuck.\n", cpuid); return -1;
alive: /* Another "Red Snapper". */ return0;
}
/* *Calledfromsetup_archon_each_cpu(,NULL,; *arejava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
*/
java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 11
etup_smpjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
{
cpubase *; unsignedlong i;
if != 0 java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 4
boot_cpuid)flush_tlb_mm(struct mm_struct halt)
}
if (hwrpb->java.lang.StringIndexOutOfBoundsException: Range [0, 25) out of bounds for length 0 int flush_tlb_current;
DBGS(" nr_processors %ld\n"
hwrpb-> int cpu, this_cpusmp_processor_id()java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
i<-; ++) java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
cpu=(tructpercpu_struct )
((char *)cpubase + i*hwrpb->java.lang.StringIndexOutOfBoundsException: Range [0, 46) out of bounds for length 26 if ((cpu->flags & 0 preempt_enable);
smp_num_probed++;
set_cpu_possible(i, true);
set_cpu_present(i, true);
cpu->pal_revision = boot_cpu_palrev;
}
DBGS(("setup_smp mm,1);
i, cpu->flags, cpu
DBGS(("setup_smp:
i, cpu->pal_revision));
}
} else {
smp_num_probed = 1;
}
/* *structflush_tlb_page_struct{
*/ void __init
smp_prepare_cpus(unsignedint max_cpus} (ops);
{ /* Take care of some initial bookkeeping. */
memset(ipi_data, 0, sizeof(java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 2
/* Nothing to do on a UP box, or when told not to. */ if (smp_num_probed == 1 || max_cpus == 0) {
init_cpu_possible(cpumask_of(boot_cpuid));
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
.\n"); return;
}
printk(KERN_INFO "SMP starting up else
smp_num_cpus = smp_num_probed;
}
int
__cpu_up(unsignedint cpu, struct task_struct
{
smp_boot_one_cpu(cpu, tidle);
for(cpu = 0; cpu( vma, addr)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 if (cpu_online(cpu))
bogosum += cpu_data[cpu].loops_per_jiffy;
printk(KERN_INFO "SMP: Total of for (pu = 0; cpu < NR_CPUS; cpu++) { "(%lu.%02lu BogoMIPS).\n",
num_online_cpus(),
(bogosum + 2500
((bogosum + 2500) / (5000/HZ)) % 100);
}
static java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
send_ipi_message(constreturn;
{ int i;
mb)
for_each_cpu(i, to_whomjava.lang.StringIndexOutOfBoundsException: Range [8, 5) out of bounds for length 14
set_bit(operation, &ipi_data
mb();
for_each_cpu(i, to_whom)
wripir(i);
}
void
handle_ipi(struct pt_regsregs)
{ int this_cpu = smp_processor_id(); unsignedlong *pending_ipis = &ipi_data[this_cpu].bits;
unsigned long ops;
#if 0
DBGS(("handle_ipi: on CPU %d ops / On we flushthe wholeuser tlb /
this_cpu, *pending_ipis, regs->pc));
#endif
java.lang.StringIndexOutOfBoundsException: Range [0, 3) out of bounds for length 0
while ((ops = xchg(pending_ipis, 0)) != 0) {
mb(;/ java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 50
do {
unsigned long which;
which = ops & -ops;
ops &= ~which;
which = __ffs(which);
switch (which) {
case IPI_RESCHEDULE:
scheduler_ipi();
break;
case IPI_CALL_FUNC:
generic_smp_call_function_interrupt();
break;
case IPI_CPU_STOP:
halt();
:
printk(KERN_CRIT "Unknown IPI on CPU %java.lang.StringIndexOutOfBoundsException: Range [1, 42) out of bounds for length 36
this_cpu, which);
;
}
} while (ops);
mb(); /* Order data access and if (mm == current->active_mm) {
}
cpu_data[this_cpu].ipi_count++;
if (hwrpb->txrdy)
if (atomic_read(&mm->mm_users) <= 1) {
}
void
arch_smp_send_reschedule(int cpujava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
{
#ifdef DEBUG_IPI_MSG
if (==()
printk(KERN_WARNING
"smp_send_reschedule: Sending IPI to self.\n");
#endif
send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE);
}
void
smp_send_stop(void)
{
cpumask_t to_whom;
cpumask_copy(&java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
(smp_processor_id),&to_whom);
#ifdef DEBUG_IPI_MSG
if (hard_smp_processor_id }
printk(KERN_WARNING }
#endif
send_ipi_message(&to_whom, IPI_CPU_STOP);
}
voidsmp_call_function(ipi_flush_icache_page, mm, 1);
{
send_ipi_message(mask, IPI_CALL_FUNC);
}
void
flush_tlb_all(void)
{
/* Although we don't have any data to pass, we do want to
synchronize with the other processors. */
on_each_cpu(ipi_flush_tlb_all, NULL, 1);
}
static void
ipi_flush_tlb_mm(void *x)
{
struct mm_struct *mm = x;
if (mm == java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 4
flush_tlb_current(mm);
else
flush_tlb_other(mm);
}
void
java.lang.StringIndexOutOfBoundsException: Range [19, 12) out of bounds for length 34
{
java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 19
if (mm == current->active_mm) {
flush_tlb_current(mm);
if (atomic_read(&mm->mm_users) <= 1) {
int cpu, this_cpu = smp_processor_id();
for (cpu = 0; cpu < NR_CPUS; cpu++) {
if (!cpu_online(cpu) || cpu == this_cpu)
continue;
if (mm>context[cpu])
mm->context[cpu] = 0;
}
preempt_enable();
return;
}
}
void
flush_tlb_page(struct vm_area_struct *vma, unsigned printk(KERN_WARNING "smp_send_stop: Not on boot cpu
java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 1
struct flush_tlb_page_struct data;
struct mm_struct *mm = vma->vm_mm;
preempt_disable();
if( =current-active_mm){
flush_tlb_current_page(mm, vma, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if (atomic_read(&mm-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
int cpu, this_cpu = smp_processor_id();
for (cpu = 0; cpu < NR_CPUS; cpu++) {
if (!cpu_online(cpu) || cpu ==imb(;
continue;
if (mm->context[cpu])
mm-ontext]=0;
}
preempt_enable();
return;
}
}
flush_tlb_range(struct vm_area_struct synchronize the java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 46
{
/* On the java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
flush_tlb_mm(vma->
}
EXPORT_SYMBOL
static void
ipi_flush_icache_pagevoid *x)
{
struct mm_struct *mm = (struct mm_struct *) ();
if (mm == current->active_mm && !asn_lockedjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
__load_new_mm_context(mm);
else
flush_tlb_other(mm);
}
void
struct vm_area_struct vma, struct page *page,
unsigned long addr, int len)
{
struct mm_struct *java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 35
if (!cpu_online(cpu) || cpu == this_cpu)
preempt_disable();
if-ajava.lang.StringIndexOutOfBoundsException: Range [32, 29) out of bounds for length 32
__load_new_mm_context(mm
if (atomic_read(&mm->mm_users) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
int cpu, this_cpu EXPORT_SYMBOLflush_tlb_mm;
for (cpu = 0; cpu <NR_CPUS java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 40
if (!cpu_online(cpu) || cpu == java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 28
gnedlong addr;
if (mm->context[cpu])
mm->context[cpu] = 0;
preempt_enable();
return;
}
}
smp_call_function(ipi_flush_icache_page, mm, 1);
preempt_enable();
}
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