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-rw-r--r--arch/ppc/platforms/pmac_smp.c692
1 files changed, 0 insertions, 692 deletions
diff --git a/arch/ppc/platforms/pmac_smp.c b/arch/ppc/platforms/pmac_smp.c
deleted file mode 100644
index 26ff26238f0..00000000000
--- a/arch/ppc/platforms/pmac_smp.c
+++ /dev/null
@@ -1,692 +0,0 @@
-/*
- * SMP support for power macintosh.
- *
- * We support both the old "powersurge" SMP architecture
- * and the current Core99 (G4 PowerMac) machines.
- *
- * Note that we don't support the very first rev. of
- * Apple/DayStar 2 CPUs board, the one with the funky
- * watchdog. Hopefully, none of these should be there except
- * maybe internally to Apple. I should probably still add some
- * code to detect this card though and disable SMP. --BenH.
- *
- * Support Macintosh G4 SMP by Troy Benjegerdes (hozer@drgw.net)
- * and Ben Herrenschmidt <benh@kernel.crashing.org>.
- *
- * Support for DayStar quad CPU cards
- * Copyright (C) XLR8, Inc. 1994-2000
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/hardirq.h>
-#include <linux/cpu.h>
-
-#include <asm/ptrace.h>
-#include <asm/atomic.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/sections.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/smp.h>
-#include <asm/residual.h>
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/time.h>
-#include <asm/open_pic.h>
-#include <asm/cacheflush.h>
-#include <asm/keylargo.h>
-
-/*
- * Powersurge (old powermac SMP) support.
- */
-
-extern void __secondary_start_pmac_0(void);
-
-/* Addresses for powersurge registers */
-#define HAMMERHEAD_BASE 0xf8000000
-#define HHEAD_CONFIG 0x90
-#define HHEAD_SEC_INTR 0xc0
-
-/* register for interrupting the primary processor on the powersurge */
-/* N.B. this is actually the ethernet ROM! */
-#define PSURGE_PRI_INTR 0xf3019000
-
-/* register for storing the start address for the secondary processor */
-/* N.B. this is the PCI config space address register for the 1st bridge */
-#define PSURGE_START 0xf2800000
-
-/* Daystar/XLR8 4-CPU card */
-#define PSURGE_QUAD_REG_ADDR 0xf8800000
-
-#define PSURGE_QUAD_IRQ_SET 0
-#define PSURGE_QUAD_IRQ_CLR 1
-#define PSURGE_QUAD_IRQ_PRIMARY 2
-#define PSURGE_QUAD_CKSTOP_CTL 3
-#define PSURGE_QUAD_PRIMARY_ARB 4
-#define PSURGE_QUAD_BOARD_ID 6
-#define PSURGE_QUAD_WHICH_CPU 7
-#define PSURGE_QUAD_CKSTOP_RDBK 8
-#define PSURGE_QUAD_RESET_CTL 11
-
-#define PSURGE_QUAD_OUT(r, v) (out_8(quad_base + ((r) << 4) + 4, (v)))
-#define PSURGE_QUAD_IN(r) (in_8(quad_base + ((r) << 4) + 4) & 0x0f)
-#define PSURGE_QUAD_BIS(r, v) (PSURGE_QUAD_OUT((r), PSURGE_QUAD_IN(r) | (v)))
-#define PSURGE_QUAD_BIC(r, v) (PSURGE_QUAD_OUT((r), PSURGE_QUAD_IN(r) & ~(v)))
-
-/* virtual addresses for the above */
-static volatile u8 __iomem *hhead_base;
-static volatile u8 __iomem *quad_base;
-static volatile u32 __iomem *psurge_pri_intr;
-static volatile u8 __iomem *psurge_sec_intr;
-static volatile u32 __iomem *psurge_start;
-
-/* values for psurge_type */
-#define PSURGE_NONE -1
-#define PSURGE_DUAL 0
-#define PSURGE_QUAD_OKEE 1
-#define PSURGE_QUAD_COTTON 2
-#define PSURGE_QUAD_ICEGRASS 3
-
-/* what sort of powersurge board we have */
-static int psurge_type = PSURGE_NONE;
-
-/* L2 and L3 cache settings to pass from CPU0 to CPU1 */
-volatile static long int core99_l2_cache;
-volatile static long int core99_l3_cache;
-
-/* Timebase freeze GPIO */
-static unsigned int core99_tb_gpio;
-
-/* Sync flag for HW tb sync */
-static volatile int sec_tb_reset = 0;
-static unsigned int pri_tb_hi, pri_tb_lo;
-static unsigned int pri_tb_stamp;
-
-static void __devinit core99_init_caches(int cpu)
-{
- if (!cpu_has_feature(CPU_FTR_L2CR))
- return;
-
- if (cpu == 0) {
- core99_l2_cache = _get_L2CR();
- printk("CPU0: L2CR is %lx\n", core99_l2_cache);
- } else {
- printk("CPU%d: L2CR was %lx\n", cpu, _get_L2CR());
- _set_L2CR(0);
- _set_L2CR(core99_l2_cache);
- printk("CPU%d: L2CR set to %lx\n", cpu, core99_l2_cache);
- }
-
- if (!cpu_has_feature(CPU_FTR_L3CR))
- return;
-
- if (cpu == 0){
- core99_l3_cache = _get_L3CR();
- printk("CPU0: L3CR is %lx\n", core99_l3_cache);
- } else {
- printk("CPU%d: L3CR was %lx\n", cpu, _get_L3CR());
- _set_L3CR(0);
- _set_L3CR(core99_l3_cache);
- printk("CPU%d: L3CR set to %lx\n", cpu, core99_l3_cache);
- }
-}
-
-/*
- * Set and clear IPIs for powersurge.
- */
-static inline void psurge_set_ipi(int cpu)
-{
- if (psurge_type == PSURGE_NONE)
- return;
- if (cpu == 0)
- in_be32(psurge_pri_intr);
- else if (psurge_type == PSURGE_DUAL)
- out_8(psurge_sec_intr, 0);
- else
- PSURGE_QUAD_OUT(PSURGE_QUAD_IRQ_SET, 1 << cpu);
-}
-
-static inline void psurge_clr_ipi(int cpu)
-{
- if (cpu > 0) {
- switch(psurge_type) {
- case PSURGE_DUAL:
- out_8(psurge_sec_intr, ~0);
- case PSURGE_NONE:
- break;
- default:
- PSURGE_QUAD_OUT(PSURGE_QUAD_IRQ_CLR, 1 << cpu);
- }
- }
-}
-
-/*
- * On powersurge (old SMP powermac architecture) we don't have
- * separate IPIs for separate messages like openpic does. Instead
- * we have a bitmap for each processor, where a 1 bit means that
- * the corresponding message is pending for that processor.
- * Ideally each cpu's entry would be in a different cache line.
- * -- paulus.
- */
-static unsigned long psurge_smp_message[NR_CPUS];
-
-void psurge_smp_message_recv(struct pt_regs *regs)
-{
- int cpu = smp_processor_id();
- int msg;
-
- /* clear interrupt */
- psurge_clr_ipi(cpu);
-
- if (num_online_cpus() < 2)
- return;
-
- /* make sure there is a message there */
- for (msg = 0; msg < 4; msg++)
- if (test_and_clear_bit(msg, &psurge_smp_message[cpu]))
- smp_message_recv(msg, regs);
-}
-
-irqreturn_t psurge_primary_intr(int irq, void *d, struct pt_regs *regs)
-{
- psurge_smp_message_recv(regs);
- return IRQ_HANDLED;
-}
-
-static void smp_psurge_message_pass(int target, int msg)
-{
- int i;
-
- if (num_online_cpus() < 2)
- return;
-
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_online(i))
- continue;
- if (target == MSG_ALL
- || (target == MSG_ALL_BUT_SELF && i != smp_processor_id())
- || target == i) {
- set_bit(msg, &psurge_smp_message[i]);
- psurge_set_ipi(i);
- }
- }
-}
-
-/*
- * Determine a quad card presence. We read the board ID register, we
- * force the data bus to change to something else, and we read it again.
- * It it's stable, then the register probably exist (ugh !)
- */
-static int __init psurge_quad_probe(void)
-{
- int type;
- unsigned int i;
-
- type = PSURGE_QUAD_IN(PSURGE_QUAD_BOARD_ID);
- if (type < PSURGE_QUAD_OKEE || type > PSURGE_QUAD_ICEGRASS
- || type != PSURGE_QUAD_IN(PSURGE_QUAD_BOARD_ID))
- return PSURGE_DUAL;
-
- /* looks OK, try a slightly more rigorous test */
- /* bogus is not necessarily cacheline-aligned,
- though I don't suppose that really matters. -- paulus */
- for (i = 0; i < 100; i++) {
- volatile u32 bogus[8];
- bogus[(0+i)%8] = 0x00000000;
- bogus[(1+i)%8] = 0x55555555;
- bogus[(2+i)%8] = 0xFFFFFFFF;
- bogus[(3+i)%8] = 0xAAAAAAAA;
- bogus[(4+i)%8] = 0x33333333;
- bogus[(5+i)%8] = 0xCCCCCCCC;
- bogus[(6+i)%8] = 0xCCCCCCCC;
- bogus[(7+i)%8] = 0x33333333;
- wmb();
- asm volatile("dcbf 0,%0" : : "r" (bogus) : "memory");
- mb();
- if (type != PSURGE_QUAD_IN(PSURGE_QUAD_BOARD_ID))
- return PSURGE_DUAL;
- }
- return type;
-}
-
-static void __init psurge_quad_init(void)
-{
- int procbits;
-
- if (ppc_md.progress) ppc_md.progress("psurge_quad_init", 0x351);
- procbits = ~PSURGE_QUAD_IN(PSURGE_QUAD_WHICH_CPU);
- if (psurge_type == PSURGE_QUAD_ICEGRASS)
- PSURGE_QUAD_BIS(PSURGE_QUAD_RESET_CTL, procbits);
- else
- PSURGE_QUAD_BIC(PSURGE_QUAD_CKSTOP_CTL, procbits);
- mdelay(33);
- out_8(psurge_sec_intr, ~0);
- PSURGE_QUAD_OUT(PSURGE_QUAD_IRQ_CLR, procbits);
- PSURGE_QUAD_BIS(PSURGE_QUAD_RESET_CTL, procbits);
- if (psurge_type != PSURGE_QUAD_ICEGRASS)
- PSURGE_QUAD_BIS(PSURGE_QUAD_CKSTOP_CTL, procbits);
- PSURGE_QUAD_BIC(PSURGE_QUAD_PRIMARY_ARB, procbits);
- mdelay(33);
- PSURGE_QUAD_BIC(PSURGE_QUAD_RESET_CTL, procbits);
- mdelay(33);
- PSURGE_QUAD_BIS(PSURGE_QUAD_PRIMARY_ARB, procbits);
- mdelay(33);
-}
-
-static int __init smp_psurge_probe(void)
-{
- int i, ncpus;
-
- /* We don't do SMP on the PPC601 -- paulus */
- if (PVR_VER(mfspr(SPRN_PVR)) == 1)
- return 1;
-
- /*
- * The powersurge cpu board can be used in the generation
- * of powermacs that have a socket for an upgradeable cpu card,
- * including the 7500, 8500, 9500, 9600.
- * The device tree doesn't tell you if you have 2 cpus because
- * OF doesn't know anything about the 2nd processor.
- * Instead we look for magic bits in magic registers,
- * in the hammerhead memory controller in the case of the
- * dual-cpu powersurge board. -- paulus.
- */
- if (find_devices("hammerhead") == NULL)
- return 1;
-
- hhead_base = ioremap(HAMMERHEAD_BASE, 0x800);
- quad_base = ioremap(PSURGE_QUAD_REG_ADDR, 1024);
- psurge_sec_intr = hhead_base + HHEAD_SEC_INTR;
-
- psurge_type = psurge_quad_probe();
- if (psurge_type != PSURGE_DUAL) {
- psurge_quad_init();
- /* All released cards using this HW design have 4 CPUs */
- ncpus = 4;
- } else {
- iounmap(quad_base);
- if ((in_8(hhead_base + HHEAD_CONFIG) & 0x02) == 0) {
- /* not a dual-cpu card */
- iounmap(hhead_base);
- psurge_type = PSURGE_NONE;
- return 1;
- }
- ncpus = 2;
- }
-
- psurge_start = ioremap(PSURGE_START, 4);
- psurge_pri_intr = ioremap(PSURGE_PRI_INTR, 4);
-
- /* this is not actually strictly necessary -- paulus. */
- for (i = 1; i < ncpus; ++i)
- smp_hw_index[i] = i;
-
- if (ppc_md.progress) ppc_md.progress("smp_psurge_probe - done", 0x352);
-
- return ncpus;
-}
-
-static void __init smp_psurge_kick_cpu(int nr)
-{
- unsigned long start = __pa(__secondary_start_pmac_0) + nr * 8;
- unsigned long a;
-
- /* may need to flush here if secondary bats aren't setup */
- for (a = KERNELBASE; a < KERNELBASE + 0x800000; a += 32)
- asm volatile("dcbf 0,%0" : : "r" (a) : "memory");
- asm volatile("sync");
-
- if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu", 0x353);
-
- out_be32(psurge_start, start);
- mb();
-
- psurge_set_ipi(nr);
- udelay(10);
- psurge_clr_ipi(nr);
-
- if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu - done", 0x354);
-}
-
-/*
- * With the dual-cpu powersurge board, the decrementers and timebases
- * of both cpus are frozen after the secondary cpu is started up,
- * until we give the secondary cpu another interrupt. This routine
- * uses this to get the timebases synchronized.
- * -- paulus.
- */
-static void __init psurge_dual_sync_tb(int cpu_nr)
-{
- int t;
-
- set_dec(tb_ticks_per_jiffy);
- set_tb(0, 0);
- last_jiffy_stamp(cpu_nr) = 0;
-
- if (cpu_nr > 0) {
- mb();
- sec_tb_reset = 1;
- return;
- }
-
- /* wait for the secondary to have reset its TB before proceeding */
- for (t = 10000000; t > 0 && !sec_tb_reset; --t)
- ;
-
- /* now interrupt the secondary, starting both TBs */
- psurge_set_ipi(1);
-
- smp_tb_synchronized = 1;
-}
-
-static struct irqaction psurge_irqaction = {
- .handler = psurge_primary_intr,
- .flags = SA_INTERRUPT,
- .mask = CPU_MASK_NONE,
- .name = "primary IPI",
-};
-
-static void __init smp_psurge_setup_cpu(int cpu_nr)
-{
-
- if (cpu_nr == 0) {
- /* If we failed to start the second CPU, we should still
- * send it an IPI to start the timebase & DEC or we might
- * have them stuck.
- */
- if (num_online_cpus() < 2) {
- if (psurge_type == PSURGE_DUAL)
- psurge_set_ipi(1);
- return;
- }
- /* reset the entry point so if we get another intr we won't
- * try to startup again */
- out_be32(psurge_start, 0x100);
- if (setup_irq(30, &psurge_irqaction))
- printk(KERN_ERR "Couldn't get primary IPI interrupt");
- }
-
- if (psurge_type == PSURGE_DUAL)
- psurge_dual_sync_tb(cpu_nr);
-}
-
-void __init smp_psurge_take_timebase(void)
-{
- /* Dummy implementation */
-}
-
-void __init smp_psurge_give_timebase(void)
-{
- /* Dummy implementation */
-}
-
-static int __init smp_core99_probe(void)
-{
-#ifdef CONFIG_6xx
- extern int powersave_nap;
-#endif
- struct device_node *cpus, *firstcpu;
- int i, ncpus = 0, boot_cpu = -1;
- u32 *tbprop = NULL;
-
- if (ppc_md.progress) ppc_md.progress("smp_core99_probe", 0x345);
- cpus = firstcpu = find_type_devices("cpu");
- while(cpus != NULL) {
- u32 *regprop = (u32 *)get_property(cpus, "reg", NULL);
- char *stateprop = (char *)get_property(cpus, "state", NULL);
- if (regprop != NULL && stateprop != NULL &&
- !strncmp(stateprop, "running", 7))
- boot_cpu = *regprop;
- ++ncpus;
- cpus = cpus->next;
- }
- if (boot_cpu == -1)
- printk(KERN_WARNING "Couldn't detect boot CPU !\n");
- if (boot_cpu != 0)
- printk(KERN_WARNING "Boot CPU is %d, unsupported setup !\n", boot_cpu);
-
- if (machine_is_compatible("MacRISC4")) {
- extern struct smp_ops_t core99_smp_ops;
-
- core99_smp_ops.take_timebase = smp_generic_take_timebase;
- core99_smp_ops.give_timebase = smp_generic_give_timebase;
- } else {
- if (firstcpu != NULL)
- tbprop = (u32 *)get_property(firstcpu, "timebase-enable", NULL);
- if (tbprop)
- core99_tb_gpio = *tbprop;
- else
- core99_tb_gpio = KL_GPIO_TB_ENABLE;
- }
-
- if (ncpus > 1) {
- openpic_request_IPIs();
- for (i = 1; i < ncpus; ++i)
- smp_hw_index[i] = i;
-#ifdef CONFIG_6xx
- powersave_nap = 0;
-#endif
- core99_init_caches(0);
- }
-
- return ncpus;
-}
-
-static void __devinit smp_core99_kick_cpu(int nr)
-{
- unsigned long save_vector, new_vector;
- unsigned long flags;
-
- volatile unsigned long *vector
- = ((volatile unsigned long *)(KERNELBASE+0x100));
- if (nr < 0 || nr > 3)
- return;
- if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu", 0x346);
-
- local_irq_save(flags);
- local_irq_disable();
-
- /* Save reset vector */
- save_vector = *vector;
-
- /* Setup fake reset vector that does
- * b __secondary_start_pmac_0 + nr*8 - KERNELBASE
- */
- new_vector = (unsigned long) __secondary_start_pmac_0 + nr * 8;
- *vector = 0x48000002 + new_vector - KERNELBASE;
-
- /* flush data cache and inval instruction cache */
- flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
-
- /* Put some life in our friend */
- pmac_call_feature(PMAC_FTR_RESET_CPU, NULL, nr, 0);
-
- /* FIXME: We wait a bit for the CPU to take the exception, I should
- * instead wait for the entry code to set something for me. Well,
- * ideally, all that crap will be done in prom.c and the CPU left
- * in a RAM-based wait loop like CHRP.
- */
- mdelay(1);
-
- /* Restore our exception vector */
- *vector = save_vector;
- flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
-
- local_irq_restore(flags);
- if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347);
-}
-
-static void __devinit smp_core99_setup_cpu(int cpu_nr)
-{
- /* Setup L2/L3 */
- if (cpu_nr != 0)
- core99_init_caches(cpu_nr);
-
- /* Setup openpic */
- do_openpic_setup_cpu();
-
- if (cpu_nr == 0) {
-#ifdef CONFIG_POWER4
- extern void g5_phy_disable_cpu1(void);
-
- /* If we didn't start the second CPU, we must take
- * it off the bus
- */
- if (machine_is_compatible("MacRISC4") &&
- num_online_cpus() < 2)
- g5_phy_disable_cpu1();
-#endif /* CONFIG_POWER4 */
- if (ppc_md.progress) ppc_md.progress("core99_setup_cpu 0 done", 0x349);
- }
-}
-
-/* not __init, called in sleep/wakeup code */
-void smp_core99_take_timebase(void)
-{
- unsigned long flags;
-
- /* tell the primary we're here */
- sec_tb_reset = 1;
- mb();
-
- /* wait for the primary to set pri_tb_hi/lo */
- while (sec_tb_reset < 2)
- mb();
-
- /* set our stuff the same as the primary */
- local_irq_save(flags);
- set_dec(1);
- set_tb(pri_tb_hi, pri_tb_lo);
- last_jiffy_stamp(smp_processor_id()) = pri_tb_stamp;
- mb();
-
- /* tell the primary we're done */
- sec_tb_reset = 0;
- mb();
- local_irq_restore(flags);
-}
-
-/* not __init, called in sleep/wakeup code */
-void smp_core99_give_timebase(void)
-{
- unsigned long flags;
- unsigned int t;
-
- /* wait for the secondary to be in take_timebase */
- for (t = 100000; t > 0 && !sec_tb_reset; --t)
- udelay(10);
- if (!sec_tb_reset) {
- printk(KERN_WARNING "Timeout waiting sync on second CPU\n");
- return;
- }
-
- /* freeze the timebase and read it */
- /* disable interrupts so the timebase is disabled for the
- shortest possible time */
- local_irq_save(flags);
- pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, core99_tb_gpio, 4);
- pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, core99_tb_gpio, 0);
- mb();
- pri_tb_hi = get_tbu();
- pri_tb_lo = get_tbl();
- pri_tb_stamp = last_jiffy_stamp(smp_processor_id());
- mb();
-
- /* tell the secondary we're ready */
- sec_tb_reset = 2;
- mb();
-
- /* wait for the secondary to have taken it */
- for (t = 100000; t > 0 && sec_tb_reset; --t)
- udelay(10);
- if (sec_tb_reset)
- printk(KERN_WARNING "Timeout waiting sync(2) on second CPU\n");
- else
- smp_tb_synchronized = 1;
-
- /* Now, restart the timebase by leaving the GPIO to an open collector */
- pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, core99_tb_gpio, 0);
- pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, core99_tb_gpio, 0);
- local_irq_restore(flags);
-}
-
-
-/* PowerSurge-style Macs */
-struct smp_ops_t psurge_smp_ops = {
- .message_pass = smp_psurge_message_pass,
- .probe = smp_psurge_probe,
- .kick_cpu = smp_psurge_kick_cpu,
- .setup_cpu = smp_psurge_setup_cpu,
- .give_timebase = smp_psurge_give_timebase,
- .take_timebase = smp_psurge_take_timebase,
-};
-
-/* Core99 Macs (dual G4s) */
-struct smp_ops_t core99_smp_ops = {
- .message_pass = smp_openpic_message_pass,
- .probe = smp_core99_probe,
- .kick_cpu = smp_core99_kick_cpu,
- .setup_cpu = smp_core99_setup_cpu,
- .give_timebase = smp_core99_give_timebase,
- .take_timebase = smp_core99_take_timebase,
-};
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-int __cpu_disable(void)
-{
- cpu_clear(smp_processor_id(), cpu_online_map);
-
- /* XXX reset cpu affinity here */
- openpic_set_priority(0xf);
- asm volatile("mtdec %0" : : "r" (0x7fffffff));
- mb();
- udelay(20);
- asm volatile("mtdec %0" : : "r" (0x7fffffff));
- return 0;
-}
-
-extern void low_cpu_die(void) __attribute__((noreturn)); /* in pmac_sleep.S */
-static int cpu_dead[NR_CPUS];
-
-void cpu_die(void)
-{
- local_irq_disable();
- cpu_dead[smp_processor_id()] = 1;
- mb();
- low_cpu_die();
-}
-
-void __cpu_die(unsigned int cpu)
-{
- int timeout;
-
- timeout = 1000;
- while (!cpu_dead[cpu]) {
- if (--timeout == 0) {
- printk("CPU %u refused to die!\n", cpu);
- break;
- }
- msleep(1);
- }
- cpu_callin_map[cpu] = 0;
- cpu_dead[cpu] = 0;
-}
-
-#endif