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-rw-r--r--arch/mips/sibyte/bcm1480/irq.c19
-rw-r--r--arch/mips/sibyte/sb1250/irq.c17
2 files changed, 3 insertions, 33 deletions
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index ed325f0ab28..a0222fa4416 100644
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -469,21 +469,6 @@ void bcm1480_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 bcm1480_timer_interrupt(struct pt_regs *regs);
extern void bcm1480_mailbox_interrupt(struct pt_regs *regs);
extern void bcm1480_kgdb_interrupt(struct pt_regs *regs);
@@ -536,9 +521,9 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
if (mask_h) {
if (mask_h ^ 1)
- do_IRQ(63 - dclz(mask_h), regs);
+ do_IRQ(fls64(mask_h) - 1, regs);
else
- do_IRQ(127 - dclz(mask_l), regs);
+ do_IRQ(63 + fls64(mask_l), regs);
}
}
}
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index 1de71adec6c..a451b4c7732 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -419,21 +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);
@@ -490,6 +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);
}
}