static void intc_mask_ack(struct irq_data *data)
{
unsigned int irq = data->irq;
struct intc_desc_int *d = get_intc_desc(irq);
unsigned long handle = intc_get_ack_handle(irq);
unsigned long addr;
intc_disable(data);
/* read register and write zero only to the associated bit */
if (handle) {
unsigned int value;
addr = INTC_REG(d, _INTC_ADDR_D(handle), 0);
value = intc_set_field_from_handle(0, 1, handle);
switch (_INTC_FN(handle)) {
case REG_FN_MODIFY_BASE + 0: /* 8bit */
__raw_readb(addr);
__raw_writeb(0xff ^ value, addr);
break;
case REG_FN_MODIFY_BASE + 1: /* 16bit */
__raw_readw(addr);
__raw_writew(0xffff ^ value, addr);
break;
case REG_FN_MODIFY_BASE + 3: /* 32bit */
__raw_readl(addr);
__raw_writel(0xffffffff ^ value, addr);
break;
default:
BUG();
break;
}
}
}
static void intc_disable(struct irq_data *data)
{
unsigned int irq = data->irq;
struct intc_desc_int *d = get_intc_desc(irq);
unsigned long handle = (unsigned long)irq_data_get_irq_chip_data(data);
unsigned long addr;
unsigned int cpu;
intc_balancing_disable(irq);
for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
#ifdef CONFIG_SMP
if (!cpumask_test_cpu(cpu, data->affinity))
continue;
#endif
addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
intc_disable_fns[_INTC_MODE(handle)](addr, handle,intc_reg_fns\
[_INTC_FN(handle)], irq);
}
}
void intc_balancing_disable(unsigned int irq)
{
struct intc_desc_int *d = get_intc_desc(irq);
unsigned long handle = dist_handle[irq];
unsigned long addr;
if (irq_balancing_disabled(irq) || !handle)
return;
addr = INTC_REG(d, _INTC_ADDR_D(handle), 0);
intc_reg_fns[_INTC_FN(handle)](addr, handle, 0);
}
static void intc_enable_disable(struct intc_desc_int *d,
unsigned long handle, int do_enable)
{
unsigned long addr;
unsigned int cpu;
unsigned long (*fn)(unsigned long, unsigned long,
unsigned long (*)(unsigned long, unsigned long,
unsigned long),
unsigned int);
if (do_enable) {
for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) {
addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu);
fn = intc_enable_noprio_fns[_INTC_MODE(handle)];
fn(addr, handle, intc_reg_fns[_INTC_FN(handle)], 0);
}
} else {
for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
fn = intc_disable_fns[_INTC_MODE(handle)];
fn(addr, handle, intc_reg_fns[_INTC_FN(handle)], 0);
}
}
}
