Cc: Andrew Jones <[email protected]>
Signed-off-by: Alexander Gordeev <[email protected]>
---
lib/pci-host-generic.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/lib/pci-host-generic.c b/lib/pci-host-generic.c
index 3d9c271..2d218a4 100644
--- a/lib/pci-host-generic.c
+++ b/lib/pci-host-generic.c
@@ -19,6 +19,15 @@
dev >= 0; \
dev = find_next_dev(pci, dev, &conf))
+static char *addr_space_desc[] = {
+ [PCI_RES_TYPE_CONF] = "CONF",
+ [PCI_RES_TYPE_IO] = "IO",
+ [PCI_RES_TYPE_MEM32] = "MEM32",
+ [PCI_RES_TYPE_MEM64] = "MEM64",
+ [PCI_RES_TYPE_PREFMEM32] = "MEM32/p",
+ [PCI_RES_TYPE_PREFMEM64] = "MEM64/p"
+};
+
static pci_res_type_t flags_to_type(u32 of_flags)
{
return ((of_flags & 0x40000000) >> 28) | ((of_flags >> 24) & 0x03);
@@ -105,6 +114,28 @@ static void pci_host_addr_space_init(struct pci_addr_space
as[], int nr_as,
}
}
+static void pci_host_bridge_print(struct pci_host_bridge *host)
+{
+ printf("PCIe start %016llx size %016llx "
+ "bus %02x bus_max %02x #spaces %d\n\n",
+ host->cpu_range.start, host->cpu_range.size,
+ host->bus, host->bus_max, host->nr_addr_spaces);
+}
+
+static void pci_address_spaces_print(struct pci_addr_space as[], int nr_as)
+{
+ int i;
+
+ for (i = 0; i < nr_as; i++, as++) {
+ printf("%s address space:\n"
+ "CPU: start %016llx size %016llx\n"
+ "PCI: start %016llx size %016llx\n\n",
+ addr_space_desc[flags_to_type(as->of_flags)],
+ as->cpu_range.start, as->cpu_range.size,
+ as->pci_range.start, as->pci_range.size);
+ }
+}
+
/*
* Probe DT for a generic PCI host controller
* See kernel Documentation/devicetree/bindings/pci/host-generic-pci.txt
@@ -180,9 +211,13 @@ static struct pci_host_bridge *pci_host_bridge_probe(void)
host->bus_max = bus_max;
host->nr_addr_spaces = nr_addr_spaces;
+ pci_host_bridge_print(host);
+
pci_host_addr_space_init(&host->addr_space[0], nr_addr_spaces,
(u32*)prop->data, nr_range_cells);
+ pci_address_spaces_print(&host->addr_space[0], host->nr_addr_spaces);
+
return host;
}
--
1.8.3.1
_______________________________________________
kvmarm mailing list
[email protected]
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
