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[MIPS] Rewrite all the assembler interrupt handlers to C.

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Saves like 1,600 lines of code, is way easier to debug, compilers
frequently do a better job than the cut and paste type of handlers many
boards had.  And finally having all the stuff done in a single place
also means alot of bug potencial for the MT ASE is gone.

The only surviving handler in assembler is the DECstation one; I hope
Maciej will rewrite it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2006-04-03 17:56:36 +01:00
parent d35d473c25
commit e4ac58afdf
100 changed files with 1113 additions and 3387 deletions
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27
arch/mips/sgi-ip27/ip27-irq.c
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@@ -130,7 +130,7 @@ static int ms1bit(unsigned long x)
* Kanoj 05.13.00
*/
void ip27_do_irq_mask0(struct pt_regs *regs)
static void ip27_do_irq_mask0(struct pt_regs *regs)
{
int irq, swlevel;
hubreg_t pend0, mask0;
@@ -171,7 +171,7 @@ void ip27_do_irq_mask0(struct pt_regs *regs)
LOCAL_HUB_L(PI_INT_PEND0);
}
void ip27_do_irq_mask1(struct pt_regs *regs)
static void ip27_do_irq_mask1(struct pt_regs *regs)
{
int irq, swlevel;
hubreg_t pend1, mask1;
@@ -196,12 +196,12 @@ void ip27_do_irq_mask1(struct pt_regs *regs)
LOCAL_HUB_L(PI_INT_PEND1);
}
void ip27_prof_timer(struct pt_regs *regs)
static void ip27_prof_timer(struct pt_regs *regs)
{
panic("CPU %d got a profiling interrupt", smp_processor_id());
}
void ip27_hub_error(struct pt_regs *regs)
static void ip27_hub_error(struct pt_regs *regs)
{
panic("CPU %d got a hub error interrupt", smp_processor_id());
}
@@ -421,9 +421,26 @@ int __devinit request_bridge_irq(struct bridge_controller *bc)
return irq;
}
extern void ip27_rt_timer_interrupt(struct pt_regs *regs);
asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
{
unsigned long pending = read_c0_cause() & read_c0_status();
if (pending & CAUSEF_IP4)
ip27_rt_timer_interrupt(regs);
else if (pending & CAUSEF_IP2) /* PI_INT_PEND_0 or CC_PEND_{A|B} */
ip27_do_irq_mask0(regs);
else if (pending & CAUSEF_IP3) /* PI_INT_PEND_1 */
ip27_do_irq_mask1(regs);
else if (pending & CAUSEF_IP5)
ip27_prof_timer(regs);
else if (pending & CAUSEF_IP6)
ip27_hub_error(regs);
}
void __init arch_init_irq(void)
{
set_except_vector(0, ip27_irq);
}
void install_ipi(void)