[SeaBIOS] [PATCH v2 4/6] pci: bridges can have two regions too

[Gerd Hoffmann]

Signed-off-by: Gerd Hoffmann 
---
 src/pciinit.c |   20 ++++++++------------
 1 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/src/pciinit.c b/src/pciinit.c
index aa391a0..33b9bf7 100644
--- a/src/pciinit.c
+++ b/src/pciinit.c
@@ -402,7 +402,7 @@ static void pci_bios_check_devices(struct pci_bus *busses)

struct pci_device *pci;
     struct pci_bus *bus;
-    int i;
+    int i, num_regions;

// init pci bridges
     foreachpci(pci) {
@@ -414,12 +414,11 @@ static void pci_bios_check_devices(struct pci_bus *busses)

// discover pci bars
     foreachpci(pci) {
-        if (pci->class == PCI_CLASS_BRIDGE_PCI)
-            continue;
+        num_regions = (pci->class == PCI_CLASS_BRIDGE_PCI) ? 2 : PCI_NUM_REGIONS;
         dprintf(1, "PCI: check device bdf=%02x:%02x.%x\n",
                 pci_bdf_to_bus(pci->bdf), pci_bdf_to_dev(pci->bdf),
                 pci_bdf_to_fn(pci->bdf));
-        for (i = 0; i < PCI_NUM_REGIONS; i++) {
+        for (i = 0; i < num_regions; i++) {
             pci_bios_get_bar(pci, i, &pci->bars[i]);
             if (pci->bars[i].addr == 0)
                 continue;
@@ -431,10 +430,9 @@ static void pci_bios_check_devices(struct pci_bus *busses)

// alloc ressources for pci bars
     foreachpci(pci) {
-        if (pci->class == PCI_CLASS_BRIDGE_PCI)
-            continue;
+        num_regions = (pci->class == PCI_CLASS_BRIDGE_PCI) ? 2 : PCI_NUM_REGIONS;
         bus = &busses[pci_bdf_to_bus(pci->bdf)];
-        for (i = 0; i < PCI_NUM_REGIONS; i++) {
+        for (i = 0; i < num_regions; i++) {
             enum pci_region_type type;
             if (pci->bars[i].addr == 0)
                 continue;
@@ -545,7 +543,7 @@ static void pci_bios_map_devices(struct pci_bus *busses)
     pci_bios_init_bus_bases(&busses[0]);

// Map regions on each secondary bus.
-    int secondary_bus;
+    int secondary_bus, num_regions, i;
     for (secondary_bus=1; secondary_bus<=MaxPCIBus; secondary_bus++) {
         struct pci_bus *s = &busses[secondary_bus];
         if (!s->bus_dev)
@@ -583,14 +581,12 @@ static void pci_bios_map_devices(struct pci_bus *busses)
     // Map regions on each device.
     struct pci_device *pci;
     foreachpci(pci) {
-        if (pci->class == PCI_CLASS_BRIDGE_PCI)
-            continue;
+        num_regions = (pci->class == PCI_CLASS_BRIDGE_PCI) ? 2 : PCI_NUM_REGIONS;
         u16 bdf = pci->bdf;
         dprintf(1, "PCI: map device bdf=%02x:%02x.%x\n"
                 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
         struct pci_bus *bus = &busses[pci_bdf_to_bus(bdf)];
-        int i;
-        for (i = 0; i < PCI_NUM_REGIONS; i++) {
+        for (i = 0; i < num_regions; i++) {
             if (pci->bars[i].addr == 0)
                 continue;