X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Falpha%2Fkernel%2Fsys_titan.c;h=52c91ccc164866d3c08ed24ed6984d7b53e35c65;hb=52833e897fd8c6f62b3e5e27291fa9bc803f7460;hp=e8e8ec9c0f4e2cff6f1690335c2ab9c3794a20ac;hpb=3dbb8c62897f96bbf5d4e4fe649e5d3791fc33c5;p=linux-2.6

diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index e8e8ec9c0f..52c91ccc16 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -204,7 +204,7 @@ static struct hw_interrupt_type titan_irq_type = {
 };
 
 static irqreturn_t
-titan_intr_nop(int irq, void *dev_id, struct pt_regs *regs)                    
+titan_intr_nop(int irq, void *dev_id)
 {
       /*
        * This is a NOP interrupt handler for the purposes of
@@ -243,9 +243,8 @@ titan_legacy_init_irq(void)
 }
 
 void
-titan_dispatch_irqs(u64 mask, struct pt_regs *regs)
+titan_dispatch_irqs(u64 mask)
 {
-	struct pt_regs *old_regs;
 	unsigned long vector;
 
 	/*
@@ -253,27 +252,37 @@ titan_dispatch_irqs(u64 mask, struct pt_regs *regs)
 	 */
 	mask &= titan_cpu_irq_affinity[smp_processor_id()];
 
-	old_regs = set_irq_regs(regs);
 	/*
 	 * Dispatch all requested interrupts 
 	 */
 	while (mask) {
 		/* convert to SRM vector... priority is <63> -> <0> */
-		__asm__("ctlz %1, %0" : "=r"(vector) : "r"(mask));
-		vector = 63 - vector;
+		vector = 63 - __kernel_ctlz(mask);
 		mask &= ~(1UL << vector);	/* clear it out 	 */
 		vector = 0x900 + (vector << 4);	/* convert to SRM vector */
 		
 		/* dispatch it */
 		alpha_mv.device_interrupt(vector);
 	}
-	set_irq_regs(old_regs);
 }
   
 
 /*
  * Titan Family
  */
+static void __init
+titan_request_irq(unsigned int irq, irq_handler_t handler,
+		  unsigned long irqflags, const char *devname,
+		  void *dev_id)
+{
+	int err;
+	err = request_irq(irq, handler, irqflags, devname, dev_id);
+	if (err) {
+		printk("titan_request_irq for IRQ %d returned %d; ignoring\n",
+		       irq, err);
+	}
+}
+
 static void __init
 titan_late_init(void)
 {
@@ -282,15 +291,15 @@ titan_late_init(void)
 	 * all reported to the kernel as machine checks, so the handler
 	 * is a nop so it can be called to count the individual events.
 	 */
-	request_irq(63+16, titan_intr_nop, IRQF_DISABLED,
+	titan_request_irq(63+16, titan_intr_nop, IRQF_DISABLED,
 		    "CChip Error", NULL);
-	request_irq(62+16, titan_intr_nop, IRQF_DISABLED,
+	titan_request_irq(62+16, titan_intr_nop, IRQF_DISABLED,
 		    "PChip 0 H_Error", NULL);
-	request_irq(61+16, titan_intr_nop, IRQF_DISABLED,
+	titan_request_irq(61+16, titan_intr_nop, IRQF_DISABLED,
 		    "PChip 1 H_Error", NULL);
-	request_irq(60+16, titan_intr_nop, IRQF_DISABLED,
+	titan_request_irq(60+16, titan_intr_nop, IRQF_DISABLED,
 		    "PChip 0 C_Error", NULL);
-	request_irq(59+16, titan_intr_nop, IRQF_DISABLED,
+	titan_request_irq(59+16, titan_intr_nop, IRQF_DISABLED,
 		    "PChip 1 C_Error", NULL);
 
 	/* 
@@ -335,9 +344,7 @@ titan_init_pci(void)
 	pci_probe_only = 1;
 	common_init_pci();
 	SMC669_Init(0);
-#ifdef CONFIG_VGA_HOSE
 	locate_and_init_vga(NULL);
-#endif
 }
 
 
@@ -351,9 +358,9 @@ privateer_init_pci(void)
 	 * Hook a couple of extra err interrupts that the
 	 * common titan code won't.
 	 */
-	request_irq(53+16, titan_intr_nop, IRQF_DISABLED,
+	titan_request_irq(53+16, titan_intr_nop, IRQF_DISABLED,
 		    "NMI", NULL);
-	request_irq(50+16, titan_intr_nop, IRQF_DISABLED,
+	titan_request_irq(50+16, titan_intr_nop, IRQF_DISABLED,
 		    "Temperature Warning", NULL);
 
 	/*