svn commit: r261524 - head/sys/dev/pci
John Baldwin
jhb at FreeBSD.org
Wed Feb 5 19:24:17 UTC 2014
Author: jhb
Date: Wed Feb 5 19:24:16 2014
New Revision: 261524
URL: http://svnweb.freebsd.org/changeset/base/261524
Log:
Properly set the alignment flags when allocating the initial range for a
BAR. This only really matters when pci_do_realloc_bars is enabled and
the initial allocation of a specific range fails.
MFC after: 1 week
Modified:
head/sys/dev/pci/pci.c
Modified: head/sys/dev/pci/pci.c
==============================================================================
--- head/sys/dev/pci/pci.c Wed Feb 5 19:23:05 2014 (r261523)
+++ head/sys/dev/pci/pci.c Wed Feb 5 19:24:16 2014 (r261524)
@@ -2742,7 +2742,7 @@ pci_add_map(device_t bus, device_t dev,
struct pci_map *pm;
pci_addr_t base, map, testval;
pci_addr_t start, end, count;
- int barlen, basezero, maprange, mapsize, type;
+ int barlen, basezero, flags, maprange, mapsize, type;
uint16_t cmd;
struct resource *res;
@@ -2848,6 +2848,9 @@ pci_add_map(device_t bus, device_t dev,
}
count = (pci_addr_t)1 << mapsize;
+ flags = RF_ALIGNMENT_LOG2(mapsize);
+ if (prefetch)
+ flags |= RF_PREFETCHABLE;
if (basezero || base == pci_mapbase(testval)) {
start = 0; /* Let the parent decide. */
end = ~0ul;
@@ -2864,7 +2867,7 @@ pci_add_map(device_t bus, device_t dev,
* pci_alloc_resource().
*/
res = resource_list_reserve(rl, bus, dev, type, ®, start, end, count,
- prefetch ? RF_PREFETCHABLE : 0);
+ flags);
if (pci_do_realloc_bars && res == NULL && (start != 0 || end != ~0ul)) {
/*
* If the allocation fails, try to allocate a resource for
@@ -2875,7 +2878,7 @@ pci_add_map(device_t bus, device_t dev,
resource_list_delete(rl, type, reg);
resource_list_add(rl, type, reg, 0, ~0ul, count);
res = resource_list_reserve(rl, bus, dev, type, ®, 0, ~0ul,
- count, prefetch ? RF_PREFETCHABLE : 0);
+ count, flags);
}
if (res == NULL) {
/*
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