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spapr_pci: factorize the use of SPAPR_MACHINE_GET_CLASS() 

It should save us some CPU cycles as these routines perform a lot of
checks.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2018-08-10 10:00:26 +02:00 committed by David Gibson
parent 74887ed918
commit 2c88b098e7
1 changed files with 6 additions and 5 deletions
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11
hw/ppc/spapr_pci.c
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@ -267,6 +267,7 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, sPAPRMachineState *spapr,
target_ulong args, uint32_t nret,
target_ulong rets)
{
sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
uint32_t config_addr = rtas_ld(args, 0);
uint64_t buid = rtas_ldq(args, 1);
unsigned int func = rtas_ld(args, 3);
@ -334,7 +335,7 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, sPAPRMachineState *spapr,
return;
}
if (!SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
if (!smc->legacy_irq_allocation) {
spapr_irq_msi_free(spapr, msi->first_irq, msi->num);
}
spapr_irq_free(spapr, msi->first_irq, msi->num);
@ -375,7 +376,7 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, sPAPRMachineState *spapr,
}
/* Allocate MSIs */
if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
if (smc->legacy_irq_allocation) {
irq = spapr_irq_find(spapr, req_num, ret_intr_type == RTAS_TYPE_MSI,
&err);
} else {
@ -401,7 +402,7 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, sPAPRMachineState *spapr,
/* Release previous MSIs */
if (msi) {
if (!SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
if (!smc->legacy_irq_allocation) {
spapr_irq_msi_free(spapr, msi->first_irq, msi->num);
}
spapr_irq_free(spapr, msi->first_irq, msi->num);
@ -1558,6 +1559,7 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
sPAPRMachineState *spapr =
(sPAPRMachineState *) object_dynamic_cast(qdev_get_machine(),
TYPE_SPAPR_MACHINE);
sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
SysBusDevice *s = SYS_BUS_DEVICE(dev);
sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(s);
PCIHostState *phb = PCI_HOST_BRIDGE(s);
@ -1575,7 +1577,6 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
}
if (sphb->index != (uint32_t)-1) {
sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
Error *local_err = NULL;
smc->phb_placement(spapr, sphb->index,
@ -1720,7 +1721,7 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
uint32_t irq = SPAPR_IRQ_PCI_LSI + sphb->index * PCI_NUM_PINS + i;
Error *local_err = NULL;
if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
if (smc->legacy_irq_allocation) {
irq = spapr_irq_findone(spapr, &local_err);
if (local_err) {
error_propagate(errp, local_err);