X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-ia64%2Fio.h;fp=include%2Fasm-ia64%2Fio.h;h=14ac58556febaf6c796da969889b320c71820605;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=c2e3742108bb827f5d0f5968b9760806f4dde223;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;p=linux-2.6.git

diff --git a/include/asm-ia64/io.h b/include/asm-ia64/io.h
index c2e374210..14ac58556 100644
--- a/include/asm-ia64/io.h
+++ b/include/asm-ia64/io.h
@@ -66,9 +66,11 @@ extern unsigned int num_io_spaces;
 #define PIO_RESERVED		__IA64_UNCACHED_OFFSET
 #define HAVE_ARCH_PIO_SIZE
 
+#include <asm/hypervisor.h>
 #include <asm/intrinsics.h>
 #include <asm/machvec.h>
 #include <asm/page.h>
+#include <asm/privop.h>
 #include <asm/system.h>
 #include <asm-generic/iomap.h>
 
@@ -88,16 +90,49 @@ phys_to_virt (unsigned long address)
 }
 
 #define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+extern u64 kern_mem_attribute (unsigned long phys_addr, unsigned long size);
 extern int valid_phys_addr_range (unsigned long addr, size_t count); /* efi.c */
-extern int valid_mmap_phys_addr_range (unsigned long addr, size_t count);
+extern int valid_mmap_phys_addr_range (unsigned long pfn, size_t count);
 
 /*
  * The following two macros are deprecated and scheduled for removal.
  * Please use the PCI-DMA interface defined in <asm/pci.h> instead.
  */
+#ifndef CONFIG_XEN
 #define bus_to_virt	phys_to_virt
 #define virt_to_bus	virt_to_phys
 #define page_to_bus	page_to_phys
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define page_to_pseudophys(page)	page_to_phys(page)
+#else /* CONFIG_XEN */
+#define bus_to_virt(bus)	\
+	phys_to_virt(machine_to_phys_for_dma(bus))
+#define virt_to_bus(virt)	\
+	phys_to_machine_for_dma(virt_to_phys(virt))
+#define page_to_bus(page)	\
+	phys_to_machine_for_dma(page_to_pseudophys(page))
+
+#define page_to_pseudophys(page) \
+	((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
+
+/*
+ * Drivers that use page_to_phys() for bus addresses are broken.
+ * This includes:
+ * drivers/ide/cris/ide-cris.c
+ * drivers/scsi/dec_esp.c
+ */
+#define page_to_phys(page)	(page_to_pseudophys(page))
+#define bvec_to_bus(bv)		(page_to_bus((bv)->bv_page) + \
+				(unsigned long) (bv)->bv_offset)
+#define bio_to_pseudophys(bio)	(page_to_pseudophys(bio_page((bio))) +	\
+				 (unsigned long) bio_offset((bio)))
+#define bvec_to_pseudophys(bv)  (page_to_pseudophys((bv)->bv_page) +	\
+				 (unsigned long) (bv)->bv_offset)
+#define BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\
+	(((bvec_to_bus((vec1)) + (vec1)->bv_len) == bvec_to_bus((vec2))) && \
+	 ((bvec_to_pseudophys((vec1)) + (vec1)->bv_len) ==		\
+	  bvec_to_pseudophys((vec2))))
+#endif /* CONFIG_XEN */
 
 # endif /* KERNEL */