Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-omap-h63xx.git] / arch / ia64 / pci / pci.c

diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 7545037a86254f1f5da925f9b96f80fafcfc1a33..61f1af5c23c187ec8f1a8c36e2a3f28b5c467078 100644 (file)
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -19,6 +19,7 @@
 #include <linux/ioport.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/bootmem.h>
 
 #include <asm/machvec.h>
 #include <asm/page.h>
@@ -614,12 +615,17 @@ char *ia64_pci_get_legacy_mem(struct pci_bus *bus)
  * vector to get the base address.
  */
 int
-pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma)
+pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma,
+                          enum pci_mmap_state mmap_state)
 {
        unsigned long size = vma->vm_end - vma->vm_start;
        pgprot_t prot;
        char *addr;
 
+       /* We only support mmap'ing of legacy memory space */
+       if (mmap_state != pci_mmap_mem)
+               return -ENOSYS;
+
        /*
         * Avoid attribute aliasing.  See Documentation/ia64/aliasing.txt
         * for more details.
@@ -743,6 +749,32 @@ static void __init set_pci_cacheline_size(void)
        pci_cache_line_size = (1 << cci.pcci_line_size) / 4;
 }
 
+u64 ia64_dma_get_required_mask(struct device *dev)
+{
+       u32 low_totalram = ((max_pfn - 1) << PAGE_SHIFT);
+       u32 high_totalram = ((max_pfn - 1) >> (32 - PAGE_SHIFT));
+       u64 mask;
+
+       if (!high_totalram) {
+               /* convert to mask just covering totalram */
+               low_totalram = (1 << (fls(low_totalram) - 1));
+               low_totalram += low_totalram - 1;
+               mask = low_totalram;
+       } else {
+               high_totalram = (1 << (fls(high_totalram) - 1));
+               high_totalram += high_totalram - 1;
+               mask = (((u64)high_totalram) << 32) + 0xffffffff;
+       }
+       return mask;
+}
+EXPORT_SYMBOL_GPL(ia64_dma_get_required_mask);
+
+u64 dma_get_required_mask(struct device *dev)
+{
+       return platform_dma_get_required_mask(dev);
+}
+EXPORT_SYMBOL_GPL(dma_get_required_mask);
+
 static int __init pcibios_init(void)
 {
        set_pci_cacheline_size();