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 <gws...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/pci-ioda.c | 1 + 1 file changed, 1 insertion(+) 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); -- 2.1.0 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev