mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-20 11:11:24 +00:00
Code Issues Releases Activity

We need to handle 64-bit BARs ourselves to avoid that the

Browse Source 
PCI infrastructure instantiates a non-existent resource.
This has BARs suddenly show up with pciconf(8) under
VMware as well.  Now that we read the BAR ourselves, ask
for the correct resource type.
This commit is contained in:
Marcel Moolenaar 2015-06-12 12:27:10 +00:00
parent 093c7f396d
commit 00f73819c2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=284315
1 changed files with 11 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
sys/dev/proto/proto_bus_pci.c
View File

@ -82,6 +82,7 @@ proto_pci_attach(device_t dev)
{
struct proto_softc *sc;
struct resource *res;
uint32_t val;
int bar, rid, type;
sc = device_get_softc(dev);
@ -91,15 +92,17 @@ proto_pci_attach(device_t dev)
for (bar = 0; bar < PCIR_MAX_BAR_0; bar++) {
rid = PCIR_BAR(bar);
type = SYS_RES_MEMORY;
val = pci_read_config(dev, rid, 4);
type = (PCI_BAR_IO(val)) ? SYS_RES_IOPORT : SYS_RES_MEMORY;
res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE);
if (res == NULL) {
type = SYS_RES_IOPORT;
res = bus_alloc_resource_any(dev, type, &rid,
RF_ACTIVE);
}
if (res != NULL)
proto_add_resource(sc, type, rid, res);
if (res == NULL)
continue;
proto_add_resource(sc, type, rid, res);
if (type == SYS_RES_IOPORT)
continue;
/* Skip over adjacent BAR for 64-bit memory BARs. */
if ((val & PCIM_BAR_MEM_TYPE) == PCIM_BAR_MEM_64)
bar++;
}
rid = 0;