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hw/intc/aspeed: Introduce IRQ handler function to reduce code duplication

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The behavior of the INTC set IRQ is almost identical between INTC and INTCIO.
To reduce duplicated code, introduce the "aspeed_intc_set_irq_handler" function
to handle both INTC and INTCIO IRQ behavior. No functional change.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250307035945.3698802-16-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Jamin Lin 2025-03-07 11:59:24 +08:00 • committed by Cédric Le Goater
parent ab24c6a2df
commit 5824e8bf6b
1 changed files with 45 additions and 37 deletions
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82
hw/intc/aspeed_intc.c
View file

@ -76,53 +76,19 @@ static void aspeed_intc_update(AspeedINTCState *s, int inpin_idx,
qemu_set_irq(s->output_pins[outpin_idx], level);
}
/*
* The address of GICINT128 to GICINT136 are from 0x1000 to 0x1804.
* Utilize "address & 0x0f00" to get the irq and irq output pin index
* The value of irq should be 0 to num_inpins.
* The irq 0 indicates GICINT128, irq 1 indicates GICINT129 and so on.
*/
static void aspeed_intc_set_irq(void *opaque, int irq, int level)
static void aspeed_intc_set_irq_handler(AspeedINTCState *s,
const AspeedINTCIRQ *intc_irq,
uint32_t select)
{
AspeedINTCState *s = (AspeedINTCState *)opaque;
AspeedINTCClass *aic = ASPEED_INTC_GET_CLASS(s);
const char *name = object_get_typename(OBJECT(s));
const AspeedINTCIRQ *intc_irq;
uint32_t status_reg;
uint32_t select = 0;
uint32_t enable;
int outpin_idx;
int inpin_idx;
int i;
assert(irq < aic->num_inpins);
intc_irq = &aic->irq_table[irq];
status_reg = intc_irq->status_reg;
outpin_idx = intc_irq->outpin_idx;
inpin_idx = intc_irq->inpin_idx;
trace_aspeed_intc_set_irq(name, inpin_idx, level);
enable = s->enable[inpin_idx];
if (!level) {
return;
}
for (i = 0; i < aic->num_lines; i++) {
if (s->orgates[inpin_idx].levels[i]) {
if (enable & BIT(i)) {
select |= BIT(i);
}
}
}
if (!select) {
return;
}
trace_aspeed_intc_select(name, select);
if (s->mask[inpin_idx] || s->regs[status_reg]) {
/*
* a. mask is not 0 means in ISR mode
@ -146,6 +112,48 @@ static void aspeed_intc_set_irq(void *opaque, int irq, int level)
}
}
/*
* GICINT128 to GICINT136 map 1:1 to input and output IRQs 0 to 8.
* The value of input IRQ should be between 0 and the number of inputs.
*/
static void aspeed_intc_set_irq(void *opaque, int irq, int level)
{
AspeedINTCState *s = (AspeedINTCState *)opaque;
AspeedINTCClass *aic = ASPEED_INTC_GET_CLASS(s);
const char *name = object_get_typename(OBJECT(s));
const AspeedINTCIRQ *intc_irq;
uint32_t select = 0;
uint32_t enable;
int inpin_idx;
int i;
assert(irq < aic->num_inpins);
intc_irq = &aic->irq_table[irq];
inpin_idx = intc_irq->inpin_idx;
trace_aspeed_intc_set_irq(name, inpin_idx, level);
enable = s->enable[inpin_idx];
if (!level) {
return;
}
for (i = 0; i < aic->num_lines; i++) {
if (s->orgates[inpin_idx].levels[i]) {
if (enable & BIT(i)) {
select |= BIT(i);
}
}
}
if (!select) {
return;
}
trace_aspeed_intc_select(name, select);
aspeed_intc_set_irq_handler(s, intc_irq, select);
}
static void aspeed_intc_enable_handler(AspeedINTCState *s, hwaddr offset,
uint64_t data)
{