1 files changed, 44 insertions, 80 deletions

diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 02db9a0412ce..128af7304288 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -4,14 +4,18 @@
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
  */
 
+#include <linux/clockchips.h>
 #include <linux/interrupt.h>
 #include <linux/profile.h>
 #include <linux/delay.h>
+#include <linux/sched.h>
 #include <linux/cpu.h>
 
 #include <asm/cacheflush.h>
 #include <asm/switch_to.h>
 #include <asm/tlbflush.h>
+#include <asm/timer.h>
+#include <asm/oplib.h>
 
 #include "irq.h"
 #include "kernel.h"
@@ -30,26 +34,22 @@ swap_ulong(volatile unsigned long *ptr, unsigned long val)
 	return val;
 }
 
-static void smp4m_ipi_init(void);
-static void smp_setup_percpu_timer(void);
-
 void __cpuinit smp4m_callin(void)
 {
 	int cpuid = hard_smp_processor_id();
 
-	local_flush_cache_all();
-	local_flush_tlb_all();
+	local_ops->cache_all();
+	local_ops->tlb_all();
 
 	notify_cpu_starting(cpuid);
 
-	/* Get our local ticker going. */
-	smp_setup_percpu_timer();
+	register_percpu_ce(cpuid);
 
 	calibrate_delay();
 	smp_store_cpu_info(cpuid);
 
-	local_flush_cache_all();
-	local_flush_tlb_all();
+	local_ops->cache_all();
+	local_ops->tlb_all();
 
 	/*
 	 * Unblock the master CPU _only_ when the scheduler state
@@ -61,8 +61,8 @@ void __cpuinit smp4m_callin(void)
 	swap_ulong(&cpu_callin_map[cpuid], 1);
 
 	/* XXX: What's up with all the flushes? */
-	local_flush_cache_all();
-	local_flush_tlb_all();
+	local_ops->cache_all();
+	local_ops->tlb_all();
 
 	/* Fix idle thread fields. */
 	__asm__ __volatile__("ld [%0], %%g6\n\t"
@@ -86,23 +86,19 @@ void __cpuinit smp4m_callin(void)
  */
 void __init smp4m_boot_cpus(void)
 {
-	smp4m_ipi_init();
-	smp_setup_percpu_timer();
-	local_flush_cache_all();
+	sun4m_unmask_profile_irq();
+	local_ops->cache_all();
 }
 
-int __cpuinit smp4m_boot_one_cpu(int i)
+int __cpuinit smp4m_boot_one_cpu(int i, struct task_struct *idle)
 {
 	unsigned long *entry = &sun4m_cpu_startup;
-	struct task_struct *p;
 	int timeout;
 	int cpu_node;
 
 	cpu_find_by_mid(i, &cpu_node);
+	current_set[i] = task_thread_info(idle);
 
-	/* Cook up an idler for this guy. */
-	p = fork_idle(i);
-	current_set[i] = task_thread_info(p);
 	/* See trampoline.S for details... */
 	entry += ((i - 1) * 3);
 
@@ -117,7 +113,7 @@ int __cpuinit smp4m_boot_one_cpu(int i)
 
 	/* whirrr, whirrr, whirrrrrrrrr... */
 	printk(KERN_INFO "Starting CPU %d at %p\n", i, entry);
-	local_flush_cache_all();
+	local_ops->cache_all();
 	prom_startcpu(cpu_node, &smp_penguin_ctable, 0, (char *)entry);
 
 	/* wheee... it's going... */
@@ -132,7 +128,7 @@ int __cpuinit smp4m_boot_one_cpu(int i)
 		return -ENODEV;
 	}
 
-	local_flush_cache_all();
+	local_ops->cache_all();
 	return 0;
 }
 
@@ -149,30 +145,29 @@ void __init smp4m_smp_done(void)
 		prev = &cpu_data(i).next;
 	}
 	*prev = first;
-	local_flush_cache_all();
+	local_ops->cache_all();
 
 	/* Ok, they are spinning and ready to go. */
 }
 
-
-/* Initialize IPIs on the SUN4M SMP machine */
-static void __init smp4m_ipi_init(void)
+static void sun4m_send_ipi(int cpu, int level)
 {
+	sbus_writel(SUN4M_SOFT_INT(level), &sun4m_irq_percpu[cpu]->set);
 }
 
-static void smp4m_ipi_resched(int cpu)
+static void sun4m_ipi_resched(int cpu)
 {
-	set_cpu_int(cpu, IRQ_IPI_RESCHED);
+	sun4m_send_ipi(cpu, IRQ_IPI_RESCHED);
 }
 
-static void smp4m_ipi_single(int cpu)
+static void sun4m_ipi_single(int cpu)
 {
-	set_cpu_int(cpu, IRQ_IPI_SINGLE);
+	sun4m_send_ipi(cpu, IRQ_IPI_SINGLE);
 }
 
-static void smp4m_ipi_mask_one(int cpu)
+static void sun4m_ipi_mask_one(int cpu)
 {
-	set_cpu_int(cpu, IRQ_IPI_MASK);
+	sun4m_send_ipi(cpu, IRQ_IPI_MASK);
 }
 
 static struct smp_funcall {
@@ -189,7 +184,7 @@ static struct smp_funcall {
 static DEFINE_SPINLOCK(cross_call_lock);
 
 /* Cross calls must be serialized, at least currently. */
-static void smp4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1,
+static void sun4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1,
 			     unsigned long arg2, unsigned long arg3,
 			     unsigned long arg4)
 {
@@ -216,7 +211,7 @@ static void smp4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1,
 				if (cpumask_test_cpu(i, &mask)) {
 					ccall_info.processors_in[i] = 0;
 					ccall_info.processors_out[i] = 0;
-					set_cpu_int(i, IRQ_CROSS_CALL);
+					sun4m_send_ipi(i, IRQ_CROSS_CALL);
 				} else {
 					ccall_info.processors_in[i] = 1;
 					ccall_info.processors_out[i] = 1;
@@ -260,64 +255,33 @@ void smp4m_cross_call_irq(void)
 void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs;
+	struct clock_event_device *ce;
 	int cpu = smp_processor_id();
 
 	old_regs = set_irq_regs(regs);
 
-	sun4m_clear_profile_irq(cpu);
-
-	profile_tick(CPU_PROFILING);
+	ce = &per_cpu(sparc32_clockevent, cpu);
 
-	if (!--prof_counter(cpu)) {
-		int user = user_mode(regs);
+	if (ce->mode & CLOCK_EVT_MODE_PERIODIC)
+		sun4m_clear_profile_irq(cpu);
+	else
+		sparc_config.load_profile_irq(cpu, 0); /* Is this needless? */
 
-		irq_enter();
-		update_process_times(user);
-		irq_exit();
+	irq_enter();
+	ce->event_handler(ce);
+	irq_exit();
 
-		prof_counter(cpu) = prof_multiplier(cpu);
-	}
 	set_irq_regs(old_regs);
 }
 
-static void __cpuinit smp_setup_percpu_timer(void)
-{
-	int cpu = smp_processor_id();
-
-	prof_counter(cpu) = prof_multiplier(cpu) = 1;
-	load_profile_irq(cpu, lvl14_resolution);
-
-	if (cpu == boot_cpu_id)
-		sun4m_unmask_profile_irq();
-}
-
-static void __init smp4m_blackbox_id(unsigned *addr)
-{
-	int rd = *addr & 0x3e000000;
-	int rs1 = rd >> 11;
-
-	addr[0] = 0x81580000 | rd;		/* rd %tbr, reg */
-	addr[1] = 0x8130200c | rd | rs1;	/* srl reg, 0xc, reg */
-	addr[2] = 0x80082003 | rd | rs1;	/* and reg, 3, reg */
-}
-
-static void __init smp4m_blackbox_current(unsigned *addr)
-{
-	int rd = *addr & 0x3e000000;
-	int rs1 = rd >> 11;
-
-	addr[0] = 0x81580000 | rd;		/* rd %tbr, reg */
-	addr[2] = 0x8130200a | rd | rs1;	/* srl reg, 0xa, reg */
-	addr[4] = 0x8008200c | rd | rs1;	/* and reg, 0xc, reg */
-}
+static const struct sparc32_ipi_ops sun4m_ipi_ops = {
+	.cross_call = sun4m_cross_call,
+	.resched    = sun4m_ipi_resched,
+	.single     = sun4m_ipi_single,
+	.mask_one   = sun4m_ipi_mask_one,
+};
 
 void __init sun4m_init_smp(void)
 {
-	BTFIXUPSET_BLACKBOX(hard_smp_processor_id, smp4m_blackbox_id);
-	BTFIXUPSET_BLACKBOX(load_current, smp4m_blackbox_current);
-	BTFIXUPSET_CALL(smp_cross_call, smp4m_cross_call, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(__hard_smp_processor_id, __smp4m_processor_id, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(smp_ipi_resched, smp4m_ipi_resched, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(smp_ipi_single, smp4m_ipi_single, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(smp_ipi_mask_one, smp4m_ipi_mask_one, BTFIXUPCALL_NORM);
+	sparc32_ipi_ops = &sun4m_ipi_ops;
 }