| Message ID | 1445475788-30348-1-git-send-email-gwshan@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
On Thu, 2015-22-10 at 01:03:08 UTC, Gavin Shan wrote: > The name of PCI root bus's M64 resource isn't initialized properly. > When dumping "/proc/iomem", "<BAD>" is seen for those M64 resources > on PCI root buses. > > ~# cat /proc/iomem | grep -e "BAD" > 3b0000000000-3b0fefffffff : <BAD> > 3b1000000000-3b1fefffffff : <BAD> > 3c0000000000-3c0fefffffff : <BAD> > 3c1000000000-3c1fefffffff : <BAD> > 3c2000000000-3c2fefffffff : <BAD> > > This fixes the issue by setting the name of PCI root bus's M64 > resource to that of PHB's device node full name. With the patch, > no "<BAD>" is seen from "/proc/iomem". > > Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/e80c4e7ca5aed7d2fa766191bc cheers
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 414fd1a..3b726aa 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -357,6 +357,7 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb) } res = &hose->mem_resources[1]; + res->name = dn->full_name; res->start = of_translate_address(dn, r + 2); res->end = res->start + of_read_number(r + 4, 2) - 1; res->flags = (IORESOURCE_MEM | IORESOURCE_MEM_64 | IORESOURCE_PREFETCH);
The name of PCI root bus's M64 resource isn't initialized properly. When dumping "/proc/iomem", "<BAD>" is seen for those M64 resources on PCI root buses. ~# cat /proc/iomem | grep -e "BAD" 3b0000000000-3b0fefffffff : <BAD> 3b1000000000-3b1fefffffff : <BAD> 3c0000000000-3c0fefffffff : <BAD> 3c1000000000-3c1fefffffff : <BAD> 3c2000000000-3c2fefffffff : <BAD> This fixes the issue by setting the name of PCI root bus's M64 resource to that of PHB's device node full name. With the patch, no "<BAD>" is seen from "/proc/iomem". Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/pci-ioda.c | 1 + 1 file changed, 1 insertion(+)