/* issue a PIO read to make sure no PIO writes are pending */
static void inline flush_crime_bus(void)
{
- volatile unsigned long junk = crime->control;
+ crime->control;
}
static void inline flush_mace_bus(void)
{
- volatile unsigned long junk = mace->perif.ctrl.misc;
+ mace->perif.ctrl.misc;
}
#undef DEBUG_IRQ
struct irqaction cpuerr_irq = { crime_cpuerr_intr, SA_INTERRUPT,
CPU_MASK_NONE, "CRIME CPU error", NULL, NULL };
-extern void ip32_handle_int(void);
-
/*
* For interrupts wired from a single device to the CPU. Only the clock
* uses this it seems, which is IRQ 0 and IP7.
#define mask_and_ack_cpu_irq disable_cpu_irq
static struct hw_interrupt_type ip32_cpu_interrupt = {
- "IP32 CPU",
- startup_cpu_irq,
- shutdown_cpu_irq,
- enable_cpu_irq,
- disable_cpu_irq,
- mask_and_ack_cpu_irq,
- end_cpu_irq,
- NULL
+ .typename = "IP32 CPU",
+ .startup = startup_cpu_irq,
+ .shutdown = shutdown_cpu_irq,
+ .enable = enable_cpu_irq,
+ .disable = disable_cpu_irq,
+ .ack = mask_and_ack_cpu_irq,
+ .end = end_cpu_irq,
};
/*
#define shutdown_crime_irq disable_crime_irq
static struct hw_interrupt_type ip32_crime_interrupt = {
- "IP32 CRIME",
- startup_crime_irq,
- shutdown_crime_irq,
- enable_crime_irq,
- disable_crime_irq,
- mask_and_ack_crime_irq,
- end_crime_irq,
- NULL
+ .typename = "IP32 CRIME",
+ .startup = startup_crime_irq,
+ .shutdown = shutdown_crime_irq,
+ .enable = enable_crime_irq,
+ .disable = disable_crime_irq,
+ .ack = mask_and_ack_crime_irq,
+ .end = end_crime_irq,
};
/*
#define mask_and_ack_macepci_irq disable_macepci_irq
static struct hw_interrupt_type ip32_macepci_interrupt = {
- "IP32 MACE PCI",
- startup_macepci_irq,
- shutdown_macepci_irq,
- enable_macepci_irq,
- disable_macepci_irq,
- mask_and_ack_macepci_irq,
- end_macepci_irq,
- NULL
+ .typename = "IP32 MACE PCI",
+ .startup = startup_macepci_irq,
+ .shutdown = shutdown_macepci_irq,
+ .enable = enable_macepci_irq,
+ .disable = disable_macepci_irq,
+ .ack = mask_and_ack_macepci_irq,
+ .end = end_macepci_irq,
};
/* This is used for MACE ISA interrupts. That means bits 4-6 in the
#define shutdown_maceisa_irq disable_maceisa_irq
static struct hw_interrupt_type ip32_maceisa_interrupt = {
- "IP32 MACE ISA",
- startup_maceisa_irq,
- shutdown_maceisa_irq,
- enable_maceisa_irq,
- disable_maceisa_irq,
- mask_and_ack_maceisa_irq,
- end_maceisa_irq,
- NULL
+ .typename = "IP32 MACE ISA",
+ .startup = startup_maceisa_irq,
+ .shutdown = shutdown_maceisa_irq,
+ .enable = enable_maceisa_irq,
+ .disable = disable_maceisa_irq,
+ .ack = mask_and_ack_maceisa_irq,
+ .end = end_maceisa_irq,
};
/* This is used for regular non-ISA, non-PCI MACE interrupts. That means
#define mask_and_ack_mace_irq disable_mace_irq
static struct hw_interrupt_type ip32_mace_interrupt = {
- "IP32 MACE",
- startup_mace_irq,
- shutdown_mace_irq,
- enable_mace_irq,
- disable_mace_irq,
- mask_and_ack_mace_irq,
- end_mace_irq,
- NULL
+ .typename = "IP32 MACE",
+ .startup = startup_mace_irq,
+ .shutdown = shutdown_mace_irq,
+ .enable = enable_mace_irq,
+ .disable = disable_mace_irq,
+ .ack = mask_and_ack_mace_irq,
+ .end = end_mace_irq,
};
static void ip32_unknown_interrupt(struct pt_regs *regs)
/* CRIME 1.1 appears to deliver all interrupts to this one pin. */
/* change this to loop over all edge-triggered irqs, exception masked out ones */
-void ip32_irq0(struct pt_regs *regs)
+static void ip32_irq0(struct pt_regs *regs)
{
uint64_t crime_int;
int irq = 0;
crime_int = crime->istat & crime_mask;
- irq = ffs(crime_int);
- crime_int = 1 << (irq - 1);
+ irq = __ffs(crime_int);
+ crime_int = 1 << irq;
if (crime_int & CRIME_MACEISA_INT_MASK) {
unsigned long mace_int = mace->perif.ctrl.istat;
- irq = ffs(mace_int & maceisa_mask) + 32;
+ irq = __ffs(mace_int & maceisa_mask) + 32;
}
+ irq++;
DBG("*irq %u*\n", irq);
do_IRQ(irq, regs);
}
-void ip32_irq1(struct pt_regs *regs)
+static void ip32_irq1(struct pt_regs *regs)
{
ip32_unknown_interrupt(regs);
}
-void ip32_irq2(struct pt_regs *regs)
+static void ip32_irq2(struct pt_regs *regs)
{
ip32_unknown_interrupt(regs);
}
-void ip32_irq3(struct pt_regs *regs)
+static void ip32_irq3(struct pt_regs *regs)
{
ip32_unknown_interrupt(regs);
}
-void ip32_irq4(struct pt_regs *regs)
+static void ip32_irq4(struct pt_regs *regs)
{
ip32_unknown_interrupt(regs);
}
-void ip32_irq5(struct pt_regs *regs)
+static void ip32_irq5(struct pt_regs *regs)
{
ll_timer_interrupt(IP32_R4K_TIMER_IRQ, regs);
}
+asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+{
+ unsigned int pending = read_c0_cause();
+
+ if (likely(pending & IE_IRQ0))
+ ip32_irq0(regs);
+ else if (unlikely(pending & IE_IRQ1))
+ ip32_irq1(regs);
+ else if (unlikely(pending & IE_IRQ2))
+ ip32_irq2(regs);
+ else if (unlikely(pending & IE_IRQ3))
+ ip32_irq3(regs);
+ else if (unlikely(pending & IE_IRQ4))
+ ip32_irq4(regs);
+ else if (likely(pending & IE_IRQ5))
+ ip32_irq5(regs);
+}
+
void __init arch_init_irq(void)
{
unsigned int irq;
crime->soft_int = 0;
mace->perif.ctrl.istat = 0;
mace->perif.ctrl.imask = 0;
- set_except_vector(0, ip32_handle_int);
for (irq = 0; irq <= IP32_IRQ_MAX; irq++) {
hw_irq_controller *controller;
git://git.onelab.eu / linux-2.6.git / blobdiff