X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fsparc64%2Fkernel%2Firq.c;h=c3d068c7a4128c5ad7a94a8ad62936f425fe2569;hb=d39c9400ae0d60aaaf534b1ad860a9bc1413d8af;hp=ab9e640df22820a5ffd9084b73258ea09042c41e;hpb=a53da52fd743fd637637572838c0a7af23a2d038;p=linux-2.6-omap-h63xx.git

diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index ab9e640df22..c3d068c7a41 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -6,7 +6,6 @@
  * Copyright (C) 1998  Jakub Jelinek    (jj@ultra.linux.cz)
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/ptrace.h>
@@ -373,14 +372,14 @@ static void run_pre_handler(unsigned int virt_irq)
 	}
 }
 
-static struct hw_interrupt_type sun4u_irq = {
+static struct irq_chip sun4u_irq = {
 	.typename	= "sun4u",
 	.enable		= sun4u_irq_enable,
 	.disable	= sun4u_irq_disable,
 	.end		= sun4u_irq_end,
 };
 
-static struct hw_interrupt_type sun4u_irq_ack = {
+static struct irq_chip sun4u_irq_ack = {
 	.typename	= "sun4u+ack",
 	.enable		= sun4u_irq_enable,
 	.disable	= sun4u_irq_disable,
@@ -388,14 +387,14 @@ static struct hw_interrupt_type sun4u_irq_ack = {
 	.end		= sun4u_irq_end,
 };
 
-static struct hw_interrupt_type sun4v_irq = {
+static struct irq_chip sun4v_irq = {
 	.typename	= "sun4v",
 	.enable		= sun4v_irq_enable,
 	.disable	= sun4v_irq_disable,
 	.end		= sun4v_irq_end,
 };
 
-static struct hw_interrupt_type sun4v_irq_ack = {
+static struct irq_chip sun4v_irq_ack = {
 	.typename	= "sun4v+ack",
 	.enable		= sun4v_irq_enable,
 	.disable	= sun4v_irq_disable,
@@ -414,6 +413,10 @@ void irq_install_pre_handler(int virt_irq,
 	data->pre_handler_arg1 = arg1;
 	data->pre_handler_arg2 = arg2;
 
+	if (desc->chip == &sun4u_irq_ack ||
+	    desc->chip == &sun4v_irq_ack)
+		return;
+
 	desc->chip = (desc->chip == &sun4u_irq ?
 		      &sun4u_irq_ack : &sun4v_irq_ack);
 }
@@ -490,22 +493,6 @@ out:
 	return bucket->virt_irq;
 }
 
-void hw_resend_irq(struct hw_interrupt_type *handler, unsigned int virt_irq)
-{
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-	unsigned long pstate;
-	unsigned int *ent;
-
-	__asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
-	__asm__ __volatile__("wrpr %0, %1, %%pstate"
-			     : : "r" (pstate), "i" (PSTATE_IE));
-	ent = irq_work(smp_processor_id());
-	bucket->irq_chain = *ent;
-	*ent = __irq(bucket);
-	set_softint(1 << PIL_DEVICE_IRQ);
-	__asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
-}
-
 void ack_bad_irq(unsigned int virt_irq)
 {
 	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
@@ -519,12 +506,13 @@ void ack_bad_irq(unsigned int virt_irq)
 }
 
 #ifndef CONFIG_SMP
-extern irqreturn_t timer_interrupt(int, void *, struct pt_regs *);
+extern irqreturn_t timer_interrupt(int, void *);
 
 void timer_irq(int irq, struct pt_regs *regs)
 {
 	unsigned long clr_mask = 1 << irq;
 	unsigned long tick_mask = tick_ops->softint_mask;
+	struct pt_regs *old_regs;
 
 	if (get_softint() & tick_mask) {
 		irq = 0;
@@ -532,21 +520,25 @@ void timer_irq(int irq, struct pt_regs *regs)
 	}
 	clear_softint(clr_mask);
 
+	old_regs = set_irq_regs(regs);
 	irq_enter();
 
 	kstat_this_cpu.irqs[0]++;
-	timer_interrupt(irq, NULL, regs);
+	timer_interrupt(irq, NULL);
 
 	irq_exit();
+	set_irq_regs(old_regs);
 }
 #endif
 
 void handler_irq(int irq, struct pt_regs *regs)
 {
 	struct ino_bucket *bucket;
+	struct pt_regs *old_regs;
 
 	clear_softint(1 << irq);
 
+	old_regs = set_irq_regs(regs);
 	irq_enter();
 
 	/* Sliiiick... */
@@ -555,12 +547,13 @@ void handler_irq(int irq, struct pt_regs *regs)
 		struct ino_bucket *next = __bucket(bucket->irq_chain);
 
 		bucket->irq_chain = 0;
-		__do_IRQ(bucket->virt_irq, regs);
+		__do_IRQ(bucket->virt_irq);
 
 		bucket = next;
 	}
 
 	irq_exit();
+	set_irq_regs(old_regs);
 }
 
 struct sun5_timer {