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spapr: Handle freeing of multiple irqs in frontend only 

spapr_irq_free() can be used to free multiple irqs at once. That's useful
for its callers, but there's no need to make the individual backend hooks
handle this.  We can loop across the irqs in spapr_irq_free() itself and
have the hooks just do one at time.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
master
David Gibson 2019-09-25 00:12:21 +10:00
parent 85d0425652
commit f233cee97b
2 changed files with 13 additions and 16 deletions
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27
hw/ppc/spapr_irq.c
View File

@ -133,16 +133,13 @@ static int spapr_irq_claim_xics(SpaprMachineState *spapr, int irq, bool lsi,
return 0;
}
static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq, int num)
static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq)
{
ICSState *ics = spapr->ics;
uint32_t srcno = irq - ics->offset;
int i;
if (ics_valid_irq(ics, irq)) {
for (i = srcno; i < srcno + num; ++i) {
memset(&ics->irqs[i], 0, sizeof(ICSIRQState));
}
memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
}
}
@ -269,13 +266,9 @@ static int spapr_irq_claim_xive(SpaprMachineState *spapr, int irq, bool lsi,
return 0;
}
static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq, int num)
static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq)
{
int i;
for (i = irq; i < irq + num; ++i) {
spapr_xive_irq_free(spapr->xive, i);
}
spapr_xive_irq_free(spapr->xive, irq);
}
static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
@ -433,10 +426,10 @@ static int spapr_irq_claim_dual(SpaprMachineState *spapr, int irq, bool lsi,
return ret;
}
static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq, int num)
static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq)
{
spapr_irq_xics.free(spapr, irq, num);
spapr_irq_xive.free(spapr, irq, num);
spapr_irq_xics.free(spapr, irq);
spapr_irq_xive.free(spapr, irq);
}
static void spapr_irq_print_info_dual(SpaprMachineState *spapr, Monitor *mon)
@ -635,7 +628,11 @@ int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp)
void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
{
spapr->irq->free(spapr, irq, num);
int i;
for (i = irq; i < (irq + num); i++) {
spapr->irq->free(spapr, i);
}
}
qemu_irq spapr_qirq(SpaprMachineState *spapr, int irq)

2
include/hw/ppc/spapr_irq.h
View File

@ -43,7 +43,7 @@ typedef struct SpaprIrq {
void (*init)(SpaprMachineState *spapr, Error **errp);
int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
void (*free)(SpaprMachineState *spapr, int irq, int num);
void (*free)(SpaprMachineState *spapr, int irq);
void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
void *fdt, uint32_t phandle);