Author: kib
Date: Sun Mar 1 10:29:48 2015
New Revision: 279484
URL: https://svnweb.freebsd.org/changeset/base/279484
Log:
MFC r276867:
Fix DMAR context allocations for the devices behind PCIe->PCI bridges
after dmar driver was converted to use rids. The bus component to
calculate context page must be taken from the requestor rid, which is
a bridge, and not from the device bus number.
Modified:
stable/10/sys/x86/iommu/intel_ctx.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/x86/iommu/intel_ctx.c
==============================================================================
--- stable/10/sys/x86/iommu/intel_ctx.c Sun Mar 1 10:04:14 2015
(r279483)
+++ stable/10/sys/x86/iommu/intel_ctx.c Sun Mar 1 10:29:48 2015
(r279484)
@@ -290,7 +290,7 @@ dmar_get_ctx(struct dmar_unit *dmar, dev
* higher chance to succeed if the sleep is allowed.
*/
DMAR_UNLOCK(dmar);
- dmar_ensure_ctx_page(dmar, bus);
+ dmar_ensure_ctx_page(dmar, PCI_RID2BUS(rid));
ctx1 = dmar_get_ctx_alloc(dmar, rid);
if (id_mapped) {
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