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-rw-r--r--sys/compat/linuxkpi/common/include/linux/mm.h111
1 files changed, 111 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/mm.h b/sys/compat/linuxkpi/common/include/linux/mm.h
new file mode 100644
index 000000000000..3835e34153d0
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/linux/mm.h
@@ -0,0 +1,111 @@
+/*-
+ * Copyright (c) 2010 Isilon Systems, Inc.
+ * Copyright (c) 2010 iX Systems, Inc.
+ * Copyright (c) 2010 Panasas, Inc.
+ * Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
+ * Copyright (c) 2015 Fran├žois Tigeot
+ * Copyright (c) 2015 Matthew Dillon <dillon@backplane.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice unmodified, this list of conditions, and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef _LINUX_MM_H_
+#define _LINUX_MM_H_
+
+#include <linux/spinlock.h>
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+
+#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_size_t vm_len; /* length for mmap. */
+ vm_memattr_t vm_page_prot;
+};
+
+/*
+ * Compute log2 of the power of two rounded up count of pages
+ * needed for size bytes.
+ */
+static inline int
+get_order(unsigned long size)
+{
+ int order;
+
+ size = (size - 1) >> PAGE_SHIFT;
+ order = 0;
+ while (size) {
+ order++;
+ size >>= 1;
+ }
+ return (order);
+}
+
+static inline void *
+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;
+ vma->vm_len = size;
+
+ return (0);
+}
+
+static inline unsigned long
+vma_pages(struct vm_area_struct *vma)
+{
+ return ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT);
+}
+
+#define offset_in_page(off) ((off) & (PAGE_SIZE - 1))
+
+static inline void
+set_page_dirty(struct vm_page *page)
+{
+ vm_page_dirty(page);
+}
+
+static inline void
+get_page(struct vm_page *page)
+{
+ vm_page_hold(page);
+}
+
+#endif /* _LINUX_MM_H_ */