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| author | Alexander Graf <agraf@suse.de> | 2013-08-28 22:41:59 (GMT) |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-08-28 22:41:59 (GMT) |
| commit | bf550fc93d9855872a95e69e4002256110d89858 (patch) | |
| tree | 10876bb4304bffe54c4160a132e7b8de6577ac4e /arch/powerpc/kernel/io-workarounds.c | |
| parent | 7e48c101e0c53e6095c5f4f5e63d14df50aae8fc (diff) | |
| parent | cc2df20c7c4ce594c3e17e9cc260c330646012c8 (diff) | |
| download | linux-fsl-qoriq-bf550fc93d9855872a95e69e4002256110d89858.tar.xz | |
Merge remote-tracking branch 'origin/next' into kvm-ppc-next
Conflicts:
mm/Kconfig
CMA DMA split and ZSWAP introduction were conflicting, fix up manually.
Diffstat (limited to 'arch/powerpc/kernel/io-workarounds.c')
| -rw-r--r-- | arch/powerpc/kernel/io-workarounds.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/io-workarounds.c b/arch/powerpc/kernel/io-workarounds.c index 50e90b7..fa0b54b 100644 --- a/arch/powerpc/kernel/io-workarounds.c +++ b/arch/powerpc/kernel/io-workarounds.c @@ -55,6 +55,7 @@ static struct iowa_bus *iowa_pci_find(unsigned long vaddr, unsigned long paddr) struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR addr) { + unsigned hugepage_shift; struct iowa_bus *bus; int token; @@ -70,11 +71,17 @@ struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR addr) if (vaddr < PHB_IO_BASE || vaddr >= PHB_IO_END) return NULL; - ptep = find_linux_pte(init_mm.pgd, vaddr); + ptep = find_linux_pte_or_hugepte(init_mm.pgd, vaddr, + &hugepage_shift); if (ptep == NULL) paddr = 0; - else + else { + /* + * we don't have hugepages backing iomem + */ + WARN_ON(hugepage_shift); paddr = pte_pfn(*ptep) << PAGE_SHIFT; + } bus = iowa_pci_find(vaddr, paddr); if (bus == NULL) |