[SPARC64]: Send all device interrupts via one PIL.
This is the first in a series of cleanups that will hopefully
allow a seamless attempt at using the generic IRQ handling
infrastructure in the Linux kernel.
Define PIL_DEVICE_IRQ and vector all device interrupts through
there.
Get rid of the ugly pil0_dummy_{bucket,desc}, instead vector
the timer interrupt directly to a specific handler since the
timer interrupt is the only event that will be signaled on
PIL 14.
The irq_worklist is now in the per-cpu trap_block[].
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index e55b5c6..0f00a99 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -457,7 +457,7 @@
}
}
-static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
unsigned long ticks, compare, pstate;
@@ -1020,19 +1020,9 @@
return clock;
}
-static void sparc64_start_timers(irqreturn_t (*cfunc)(int, void *, struct pt_regs *))
+static void sparc64_start_timers(void)
{
unsigned long pstate;
- int err;
-
- /* Register IRQ handler. */
- err = request_irq(build_irq(0, 0, 0UL, 0UL), cfunc, 0,
- "timer", NULL);
-
- if (err) {
- prom_printf("Serious problem, cannot register TICK_INT\n");
- prom_halt();
- }
/* Guarantee that the following sequences execute
* uninterrupted.
@@ -1116,7 +1106,7 @@
/* Now that the interpolator is registered, it is
* safe to start the timer ticking.
*/
- sparc64_start_timers(timer_interrupt);
+ sparc64_start_timers();
timer_ticks_per_nsec_quotient =
(((NSEC_PER_SEC << SPARC64_NSEC_PER_CYC_SHIFT) +