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ppc/pnv: turn PnvPHB4 into a PnvPHB backend

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Change the parent type of the PnvPHB4 device to TYPE_PARENT since the
PCI bus is going to be initialized by the PnvPHB parent. Functions that
needs to access the bus via a PnvPHB4 object can do so via the
phb4->phb_base pointer.

pnv_phb4_pec now creates a PnvPHB object.

The powernv9 machine class will create PnvPHB devices with version '4'.
powernv10 will create using version '5'. Both are using global machine
properties in their class_init() to do that.

These changes will benefit us when adding PnvPHB user creatable devices
for powernv9 and powernv10.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Message-Id: <20220624084921.399219-6-danielhb413@gmail.com>
This commit is contained in:
Daniel Henrique Barboza 2022-06-24 05:49:14 -03:00
parent fe5bfd4bb8
commit 210aacb3b9
4 changed files with 27 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

30
hw/pci-host/pnv_phb4.c
View file

@ -33,7 +33,7 @@
static PCIDevice *pnv_phb4_find_cfg_dev(PnvPHB4 *phb)
{
PCIHostState *pci = PCI_HOST_BRIDGE(phb);
PCIHostState *pci = PCI_HOST_BRIDGE(phb->phb_base);
uint64_t addr = phb->regs[PHB_CONFIG_ADDRESS >> 3];
uint8_t bus, devfn;
@ -129,7 +129,7 @@ static uint64_t pnv_phb4_config_read(PnvPHB4 *phb, unsigned off,
static void pnv_phb4_rc_config_write(PnvPHB4 *phb, unsigned off,
unsigned size, uint64_t val)
{
PCIHostState *pci = PCI_HOST_BRIDGE(phb);
PCIHostState *pci = PCI_HOST_BRIDGE(phb->phb_base);
PCIDevice *pdev;
if (size != 4) {
@ -150,7 +150,7 @@ static void pnv_phb4_rc_config_write(PnvPHB4 *phb, unsigned off,
static uint64_t pnv_phb4_rc_config_read(PnvPHB4 *phb, unsigned off,
unsigned size)
{
PCIHostState *pci = PCI_HOST_BRIDGE(phb);
PCIHostState *pci = PCI_HOST_BRIDGE(phb->phb_base);
PCIDevice *pdev;
uint64_t val;
@ -1558,8 +1558,6 @@ void pnv_phb4_bus_init(DeviceState *dev, PnvPHB4 *phb)
static void pnv_phb4_realize(DeviceState *dev, Error **errp)
{
PnvPHB4 *phb = PNV_PHB4(dev);
PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(phb->pec);
PCIHostState *pci = PCI_HOST_BRIDGE(dev);
XiveSource *xsrc = &phb->xsrc;
int nr_irqs;
char name[32];
@ -1573,12 +1571,6 @@ static void pnv_phb4_realize(DeviceState *dev, Error **errp)
memory_region_init_io(&phb->mr_regs, OBJECT(phb), &pnv_phb4_reg_ops, phb,
name, 0x2000);
pnv_phb4_bus_init(dev, phb);
/* Add a single Root port if running with defaults */
pnv_phb_attach_root_port(pci, pecc->rp_model,
phb->phb_id, phb->chip_id);
/* Setup XIVE Source */
if (phb->big_phb) {
nr_irqs = PNV_PHB4_MAX_INTs;
@ -1598,16 +1590,6 @@ static void pnv_phb4_realize(DeviceState *dev, Error **errp)
pnv_phb4_xscom_realize(phb);
}
static const char *pnv_phb4_root_bus_path(PCIHostState *host_bridge,
PCIBus *rootbus)
{
PnvPHB4 *phb = PNV_PHB4(host_bridge);
snprintf(phb->bus_path, sizeof(phb->bus_path), "00%02x:%02x",
phb->chip_id, phb->phb_id);
return phb->bus_path;
}
/*
* Address base trigger mode (POWER10)
*
@ -1692,19 +1674,17 @@ static Property pnv_phb4_properties[] = {
DEFINE_PROP_UINT32("chip-id", PnvPHB4, chip_id, 0),
DEFINE_PROP_LINK("pec", PnvPHB4, pec, TYPE_PNV_PHB4_PEC,
PnvPhb4PecState *),
DEFINE_PROP_LINK("phb-base", PnvPHB4, phb_base, TYPE_PNV_PHB, PnvPHB *),
DEFINE_PROP_END_OF_LIST(),
};
static void pnv_phb4_class_init(ObjectClass *klass, void *data)
{
PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
XiveNotifierClass *xfc = XIVE_NOTIFIER_CLASS(klass);
hc->root_bus_path = pnv_phb4_root_bus_path;
dc->realize = pnv_phb4_realize;
device_class_set_props(dc, pnv_phb4_properties);
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->user_creatable = false;
xfc->notify = pnv_phb4_xive_notify;
@ -1712,7 +1692,7 @@ static void pnv_phb4_class_init(ObjectClass *klass, void *data)
static const TypeInfo pnv_phb4_type_info = {
.name = TYPE_PNV_PHB4,
.parent = TYPE_PCIE_HOST_BRIDGE,
.parent = TYPE_DEVICE,
.instance_init = pnv_phb4_instance_init,
.instance_size = sizeof(PnvPHB4),
.class_init = pnv_phb4_class_init,

3
hw/pci-host/pnv_phb4_pec.c
View file

@ -115,8 +115,7 @@ static void pnv_pec_default_phb_realize(PnvPhb4PecState *pec,
int stack_no,
Error **errp)
{
PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec);
PnvPHB4 *phb = PNV_PHB4(qdev_new(pecc->phb_type));
PnvPHB *phb = PNV_PHB(qdev_new(TYPE_PNV_PHB));
int phb_id = pnv_phb4_pec_get_phb_id(pec, stack_no);
object_property_add_child(OBJECT(pec), "phb[*]", OBJECT(phb));