diff options
Diffstat (limited to 'arch/ppc')
| -rw-r--r-- | arch/ppc/kernel/pci.c | 5 | ||||
| -rw-r--r-- | arch/ppc/mm/init.c | 10 |
2 files changed, 7 insertions, 8 deletions
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index ad4ef2a..e8f4e57 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -1594,16 +1594,17 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp, * above routine */ pgprot_t pci_phys_mem_access_prot(struct file *file, - unsigned long offset, + unsigned long pfn, unsigned long size, pgprot_t protection) { struct pci_dev *pdev = NULL; struct resource *found = NULL; unsigned long prot = pgprot_val(protection); + unsigned long offset = pfn << PAGE_SHIFT; int i; - if (page_is_ram(offset >> PAGE_SHIFT)) + if (page_is_ram(pfn)) return prot; prot |= _PAGE_NO_CACHE | _PAGE_GUARDED; diff --git a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c index db94efd..99b48ab 100644 --- a/arch/ppc/mm/init.c +++ b/arch/ppc/mm/init.c @@ -637,18 +637,16 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, */ int page_is_ram(unsigned long pfn) { - unsigned long paddr = (pfn << PAGE_SHIFT); - - return paddr < __pa(high_memory); + return pfn < max_pfn; } -pgprot_t phys_mem_access_prot(struct file *file, unsigned long addr, +pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot) { if (ppc_md.phys_mem_access_prot) - return ppc_md.phys_mem_access_prot(file, addr, size, vma_prot); + return ppc_md.phys_mem_access_prot(file, pfn, size, vma_prot); - if (!page_is_ram(addr >> PAGE_SHIFT)) + if (!page_is_ram(pfn)) vma_prot = __pgprot(pgprot_val(vma_prot) | _PAGE_GUARDED | _PAGE_NO_CACHE); return vma_prot; |