Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Avoid trying to create a tag for locating AMD HyperTransport bridge that will

Browse Source 
panic a machine that uses Configuration Mechanism 2.
This commit is contained in:
jakllsch 2016-06-10 23:07:52 +00:00
parent 2bebf08d85
commit da2bfb7944
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sys/arch/x86/pci/pci_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pci_machdep.c,v 1.73 2015/11/26 16:27:05 jakllsch Exp $ */
/* $NetBSD: pci_machdep.c,v 1.74 2016/06/10 23:07:52 jakllsch Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@ -73,7 +73,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.73 2015/11/26 16:27:05 jakllsch Exp $");
__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.74 2016/06/10 23:07:52 jakllsch Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -512,10 +512,12 @@ pci_attach_hook(device_t parent, device_t self, struct pcibus_attach_args *pba)
* If that device has a HyperTransport capability, bus 0 must
* be a HyperTransport bus and we disable MSI.
*/
tag = pci_make_tag(pc, 0, 24, 0);
if (pci_get_capability(pc, tag, PCI_CAP_LDT, NULL, NULL)) {
pba->pba_flags &= ~PCI_FLAGS_MSI_OKAY;
pba->pba_flags &= ~PCI_FLAGS_MSIX_OKAY;
if (24 < pci_bus_maxdevs(pc, 0)) {
tag = pci_make_tag(pc, 0, 24, 0);
if (pci_get_capability(pc, tag, PCI_CAP_LDT, NULL, NULL)) {
pba->pba_flags &= ~PCI_FLAGS_MSI_OKAY;
pba->pba_flags &= ~PCI_FLAGS_MSIX_OKAY;
}
}
#endif /* __HAVE_PCI_MSI_MSIX */
}