FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2025-04-02 07:51:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

powerpc/pci: Check the bus address instead of resource address in pcibios_fixup_resources

Browse Source 
If a BAR has the value of 0, we would assume that it is unset yet and
then mark the resource as unset and would reassign it later. But after
commit 6c5705fe (powerpc/PCI: get rid of device resource fixups)
the pcibios_fixup_resources is invoked after the bus address was
translated to linux resource. So the value of res->start is resource
address. And since the resource and bus address may be different, we
should translate it to the bus address before doing the check.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Kevin Hao 2013-06-05 02:26:51 +00:00 committed by Benjamin Herrenschmidt
parent 1612e111e4
commit c5df457ffe
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/powerpc/kernel/pci-common.c
View File

@ -827,6 +827,7 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
}
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
struct resource *res = dev->resource + i;
struct pci_bus_region reg;
if (!res->flags)
continue;
@ -835,8 +836,9 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
* at 0 as unset as well, except if PCI_PROBE_ONLY is also set
* since in that case, we don't want to re-assign anything
*/
pcibios_resource_to_bus(dev, &reg, res);
if (pci_has_flag(PCI_REASSIGN_ALL_RSRC) ||
(res->start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
(reg.start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
/* Only print message if not re-assigning */
if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC))
pr_debug("PCI:%s Resource %d %016llx-%016llx [%x] "