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-rw-r--r--src/device/pci_ops.c41
1 files changed, 31 insertions, 10 deletions
diff --git a/src/device/pci_ops.c b/src/device/pci_ops.c
index b0281f4943..5b633c8667 100644
--- a/src/device/pci_ops.c
+++ b/src/device/pci_ops.c
@@ -25,9 +25,30 @@
#include <device/pci_ids.h>
#include <device/pci_ops.h>
+const struct pci_bus_operations *pci_bus_default_ops(device_t dev)
+{
+#if CONFIG_MMCONF_SUPPORT_DEFAULT
+ return &pci_ops_mmconf;
+#else
+ return &pci_cf8_conf1;
+#endif
+}
+
+static const struct pci_bus_operations *pci_bus_ops(struct bus *bus, device_t dev)
+{
+ const struct pci_bus_operations *bops;
+ bops = NULL;
+ if (bus && bus->dev && bus->dev->ops && bus->dev->ops->ops_pci_bus) {
+ bops = bus->dev->ops->ops_pci_bus(dev);
+ }
+ if (!bops)
+ bops = pci_bus_default_ops(dev);
+ return bops;
+}
+
/*
- * The only consumer of the return value of get_pbus() is ops_pci_bus().
- * ops_pci_bus() can handle being passed NULL and auto-picks working ops.
+ * The only consumer of the return value of get_pbus() is pci_bus_ops().
+ * pci_bus_ops() can handle being passed NULL and auto-picks working ops.
*/
static struct bus *get_pbus(device_t dev)
{
@@ -38,10 +59,10 @@ static struct bus *get_pbus(device_t dev)
else
pbus = dev->bus;
- while (pbus && pbus->dev && !ops_pci_bus(pbus)) {
+ while (pbus && pbus->dev && !pci_bus_ops(pbus, dev)) {
if (pbus == pbus->dev->bus) {
printk(BIOS_ALERT, "%s in endless loop looking for a "
- "parent bus with ops_pci_bus for %s, breaking "
+ "parent bus with pci_bus_ops for %s, breaking "
"out.\n", __func__, dev_path(dev));
break;
}
@@ -64,42 +85,42 @@ static struct bus *get_pbus(device_t dev)
u8 pci_read_config8(device_t dev, unsigned int where)
{
struct bus *pbus = get_pbus(dev);
- return ops_pci_bus(pbus)->read8(pbus, dev->bus->secondary,
+ return pci_bus_ops(pbus, dev)->read8(pbus, dev->bus->secondary,
dev->path.pci.devfn, where);
}
u16 pci_read_config16(device_t dev, unsigned int where)
{
struct bus *pbus = get_pbus(dev);
- return ops_pci_bus(pbus)->read16(pbus, dev->bus->secondary,
+ return pci_bus_ops(pbus, dev)->read16(pbus, dev->bus->secondary,
dev->path.pci.devfn, where);
}
u32 pci_read_config32(device_t dev, unsigned int where)
{
struct bus *pbus = get_pbus(dev);
- return ops_pci_bus(pbus)->read32(pbus, dev->bus->secondary,
+ return pci_bus_ops(pbus, dev)->read32(pbus, dev->bus->secondary,
dev->path.pci.devfn, where);
}
void pci_write_config8(device_t dev, unsigned int where, u8 val)
{
struct bus *pbus = get_pbus(dev);
- ops_pci_bus(pbus)->write8(pbus, dev->bus->secondary,
+ pci_bus_ops(pbus, dev)->write8(pbus, dev->bus->secondary,
dev->path.pci.devfn, where, val);
}
void pci_write_config16(device_t dev, unsigned int where, u16 val)
{
struct bus *pbus = get_pbus(dev);
- ops_pci_bus(pbus)->write16(pbus, dev->bus->secondary,
+ pci_bus_ops(pbus, dev)->write16(pbus, dev->bus->secondary,
dev->path.pci.devfn, where, val);
}
void pci_write_config32(device_t dev, unsigned int where, u32 val)
{
struct bus *pbus = get_pbus(dev);
- ops_pci_bus(pbus)->write32(pbus, dev->bus->secondary,
+ pci_bus_ops(pbus, dev)->write32(pbus, dev->bus->secondary,
dev->path.pci.devfn, where, val);
}