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From: Jeff Roberson <jeff@FreeBSD.org>
Date: Sat, 7 Aug 2010 02:08:33 +0000 (UTC)
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Subject: svn commit: r210988 - projects/ofed/head/sys/ofed/include/linux
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Author: jeff
Date: Sat Aug 7 02:08:33 2010
New Revision: 210988
URL: http://svn.freebsd.org/changeset/base/210988
Log:
- Implement enough of vm_area_struct to support mmap.
- Define a few page protection types.
Sponsored by: Isilon Systems, iX Systems, and Panasas.
Modified:
projects/ofed/head/sys/ofed/include/linux/mm.h
projects/ofed/head/sys/ofed/include/linux/page.h
Modified: projects/ofed/head/sys/ofed/include/linux/mm.h
==============================================================================
--- projects/ofed/head/sys/ofed/include/linux/mm.h Sat Aug 7 02:07:40 2010 (r210987)
+++ projects/ofed/head/sys/ofed/include/linux/mm.h Sat Aug 7 02:08:33 2010 (r210988)
@@ -35,6 +35,11 @@
#define PAGE_ALIGN(x) ALIGN(x, PAGE_SIZE)
struct vm_area_struct {
+ vm_offset_t vm_start;
+ vm_offset_t vm_end;
+ vm_offset_t vm_pgoff;
+ vm_paddr_t vm_pfn; /* PFN For mmap. */
+ vm_memattr_t vm_page_prot;
};
/*
@@ -62,4 +67,18 @@ lowmem_page_address(struct page *page)
return page_address(page);
}
+/*
+ * This only works via mmap ops.
+ */
+static inline int
+io_remap_pfn_range(struct vm_area_struct *vma,
+ unsigned long addr, unsigned long pfn, unsigned long size,
+ vm_memattr_t prot)
+{
+ vma->vm_page_prot = prot;
+ vma->vm_pfn = pfn;
+
+ return (0);
+}
+
#endif /* _LINUX_MM_H_ */
Modified: projects/ofed/head/sys/ofed/include/linux/page.h
==============================================================================
--- projects/ofed/head/sys/ofed/include/linux/page.h Sat Aug 7 02:07:40 2010 (r210987)
+++ projects/ofed/head/sys/ofed/include/linux/page.h Sat Aug 7 02:08:33 2010 (r210988)
@@ -40,6 +40,8 @@
#define virt_to_page(x) PHYS_TO_VM_PAGE(vtophys((x)))
#define clear_page(page) memset((page), 0, PAGE_SIZE)
+#define pgprot_noncached(prot) VM_MEMATTR_UNCACHED
+#define pgprot_wc(prot) VM_MEMATTR_WRITE_COMBINING
#undef PAGE_MASK
#define PAGE_MASK (~(PAGE_SIZE-1))