Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

[pandora-kernel.git] / arch / mips / sibyte / sb1250 / irq.c

diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index f853c32..a451b4c 100644 (file)
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -15,7 +15,6 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/linkage.h>
@@ -70,7 +69,7 @@ extern char sb1250_duart_present[];
 #endif
 #endif
 
-static struct hw_interrupt_type sb1250_irq_type = {
+static struct irq_chip sb1250_irq_type = {
        .typename = "SB1250-IMR",
        .startup = startup_sb1250_irq,
        .shutdown = shutdown_sb1250_irq,
@@ -121,7 +120,7 @@ static void sb1250_set_affinity(unsigned int irq, cpumask_t mask)
 {
        int i = 0, old_cpu, cpu, int_on;
        u64 cur_ints;
-       irq_desc_t *desc = irq_desc + irq;
+       struct irq_desc *desc = irq_desc + irq;
        unsigned long flags;
 
        i = first_cpu(mask);
@@ -246,10 +245,10 @@ void __init init_sb1250_irqs(void)
                irq_desc[i].action = 0;
                irq_desc[i].depth = 1;
                if (i < SB1250_NR_IRQS) {
-                       irq_desc[i].handler = &sb1250_irq_type;
+                       irq_desc[i].chip = &sb1250_irq_type;
                        sb1250_irq_owner[i] = 0;
                } else {
-                       irq_desc[i].handler = &no_irq_type;
+                       irq_desc[i].chip = &no_irq_chip;
                }
        }
 }
@@ -272,7 +271,7 @@ static struct irqaction sb1250_dummy_action = {
 
 int sb1250_steal_irq(int irq)
 {
-       irq_desc_t *desc = irq_desc + irq;
+       struct irq_desc *desc = irq_desc + irq;
        unsigned long flags;
        int retval = 0;
 
@@ -420,21 +419,6 @@ static void sb1250_kgdb_interrupt(struct pt_regs *regs)
 
 #endif         /* CONFIG_KGDB */
 
-static inline int dclz(unsigned long long x)
-{
-       int lz;
-
-       __asm__ (
-       "       .set    push                                            \n"
-       "       .set    mips64                                          \n"
-       "       dclz    %0, %1                                          \n"
-       "       .set    pop                                             \n"
-       : "=r" (lz)
-       : "r" (x));
-
-       return lz;
-}
-
 extern void sb1250_timer_interrupt(struct pt_regs *regs);
 extern void sb1250_mailbox_interrupt(struct pt_regs *regs);
 extern void sb1250_kgdb_interrupt(struct pt_regs *regs);
@@ -461,25 +445,25 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
        pending = read_c0_cause();
 
 #ifdef CONFIG_SIBYTE_SB1250_PROF
-       if (pending & CAUSEF_IP7) { /* Cpu performance counter interrupt */
+       if (pending & CAUSEF_IP7) /* Cpu performance counter interrupt */
                sbprof_cpu_intr(exception_epc(regs));
-       }
+       else
 #endif
 
        if (pending & CAUSEF_IP4)
                sb1250_timer_interrupt(regs);
 
 #ifdef CONFIG_SMP
-       if (pending & CAUSEF_IP3)
+       else if (pending & CAUSEF_IP3)
                sb1250_mailbox_interrupt(regs);
 #endif
 
 #ifdef CONFIG_KGDB
-       if (pending & CAUSEF_IP6)                       /* KGDB (uart 1) */
+       else if (pending & CAUSEF_IP6)                  /* KGDB (uart 1) */
                sb1250_kgdb_interrupt(regs);
 #endif
 
-       if (pending & CAUSEF_IP2) {
+       else if (pending & CAUSEF_IP2) {
                unsigned long long mask;
 
                /*
@@ -491,6 +475,6 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
                mask = __raw_readq(IOADDR(A_IMR_REGISTER(smp_processor_id(),
                                              R_IMR_INTERRUPT_STATUS_BASE)));
                if (mask)
-                       do_IRQ(63 - dclz(mask), regs);
+                       do_IRQ(fls64(mask) - 1, regs);
        }
 }