Author: jhb
Date: Thu Mar 19 19:22:11 2009
New Revision: 190095
URL: http://svn.freebsd.org/changeset/base/190095
Log:
MFC: Honor the prefetchable flag in memory BARs.
Modified:
stable/6/sys/ (props changed)
stable/6/sys/contrib/pf/ (props changed)
stable/6/sys/dev/cxgb/ (props changed)
stable/6/sys/dev/pci/pci.c
Modified: stable/6/sys/dev/pci/pci.c
==============================================================================
--- stable/6/sys/dev/pci/pci.c Thu Mar 19 18:45:37 2009 (r190094)
+++ stable/6/sys/dev/pci/pci.c Thu Mar 19 19:22:11 2009 (r190095)
@@ -1706,9 +1706,11 @@ pci_add_map(device_t pcib, device_t bus,
testval = PCIB_READ_CONFIG(pcib, b, s, f, reg, 4);
PCIB_WRITE_CONFIG(pcib, b, s, f, reg, map, 4);
- if (pci_maptype(map) & PCI_MAPMEM)
+ if (pci_maptype(map) & PCI_MAPMEM) {
type = SYS_RES_MEMORY;
- else
+ if (pci_maptype(map) & PCI_MAPMEMP)
+ prefetch = 1;
+ } else
type = SYS_RES_IOPORT;
ln2size = pci_mapsize(testval);
ln2range = pci_maprange(testval);
@@ -2811,7 +2813,9 @@ pci_alloc_map(device_t dev, device_t chi
count = 1 << mapsize;
if (RF_ALIGNMENT(flags) < mapsize)
flags = (flags & ~RF_ALIGNMENT_MASK) |
RF_ALIGNMENT_LOG2(mapsize);
-
+ if (pci_maptype(testval) & PCI_MAPMEMP)
+ flags |= RF_PREFETCHABLE;
+
/*
* Allocate enough resource, and then write back the
* appropriate bar for that resource.
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