Merge branch 'upstream-merged'

1 files changed, 114 insertions, 0 deletions

diff --git a/libdde_linux26/contrib/include/linux/vmalloc.h b/libdde_linux26/contrib/include/linux/vmalloc.h
new file mode 100644
index 00000000..9c0890c7
--- /dev/null
+++ b/libdde_linux26/contrib/include/linux/vmalloc.h
@@ -0,0 +1,114 @@
+#ifndef _LINUX_VMALLOC_H
+#define _LINUX_VMALLOC_H
+
+#include <linux/spinlock.h>
+#include <linux/init.h>
+#include <asm/page.h>		/* pgprot_t */
+
+struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
+
+/* bits in flags of vmalloc's vm_struct below */
+#define VM_IOREMAP	0x00000001	/* ioremap() and friends */
+#define VM_ALLOC	0x00000002	/* vmalloc() */
+#define VM_MAP		0x00000004	/* vmap()ed pages */
+#define VM_USERMAP	0x00000008	/* suitable for remap_vmalloc_range */
+#define VM_VPAGES	0x00000010	/* buffer for pages was vmalloc'ed */
+/* bits [20..32] reserved for arch specific ioremap internals */
+
+/*
+ * Maximum alignment for ioremap() regions.
+ * Can be overriden by arch-specific value.
+ */
+#ifndef IOREMAP_MAX_ORDER
+#define IOREMAP_MAX_ORDER	(7 + PAGE_SHIFT)	/* 128 pages */
+#endif
+
+struct vm_struct {
+	struct vm_struct	*next;
+	void			*addr;
+	unsigned long		size;
+	unsigned long		flags;
+	struct page		**pages;
+	unsigned int		nr_pages;
+	unsigned long		phys_addr;
+	void			*caller;
+};
+
+/*
+ *	Highlevel APIs for driver use
+ */
+extern void vm_unmap_ram(const void *mem, unsigned int count);
+extern void *vm_map_ram(struct page **pages, unsigned int count,
+				int node, pgprot_t prot);
+extern void vm_unmap_aliases(void);
+
+#ifdef CONFIG_MMU
+extern void __init vmalloc_init(void);
+#else
+static inline void vmalloc_init(void)
+{
+}
+#endif
+
+extern void *vmalloc(unsigned long size);
+extern void *vmalloc_user(unsigned long size);
+extern void *vmalloc_node(unsigned long size, int node);
+extern void *vmalloc_exec(unsigned long size);
+extern void *vmalloc_32(unsigned long size);
+extern void *vmalloc_32_user(unsigned long size);
+extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
+extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask,
+				pgprot_t prot);
+extern void vfree(const void *addr);
+
+extern void *vmap(struct page **pages, unsigned int count,
+			unsigned long flags, pgprot_t prot);
+extern void vunmap(const void *addr);
+
+extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
+							unsigned long pgoff);
+void vmalloc_sync_all(void);
+ 
+/*
+ *	Lowlevel-APIs (not for driver use!)
+ */
+
+static inline size_t get_vm_area_size(const struct vm_struct *area)
+{
+	/* return actual size without guard page */
+	return area->size - PAGE_SIZE;
+}
+
+extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags);
+extern struct vm_struct *get_vm_area_caller(unsigned long size,
+					unsigned long flags, void *caller);
+extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
+					unsigned long start, unsigned long end);
+extern struct vm_struct *__get_vm_area_caller(unsigned long size,
+					unsigned long flags,
+					unsigned long start, unsigned long end,
+					void *caller);
+extern struct vm_struct *get_vm_area_node(unsigned long size,
+					  unsigned long flags, int node,
+					  gfp_t gfp_mask);
+extern struct vm_struct *remove_vm_area(const void *addr);
+
+extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
+			struct page ***pages);
+extern void unmap_kernel_range(unsigned long addr, unsigned long size);
+
+/* Allocate/destroy a 'vmalloc' VM area. */
+extern struct vm_struct *alloc_vm_area(size_t size);
+extern void free_vm_area(struct vm_struct *area);
+
+/* for /dev/kmem */
+extern long vread(char *buf, char *addr, unsigned long count);
+extern long vwrite(char *buf, char *addr, unsigned long count);
+
+/*
+ *	Internals.  Dont't use..
+ */
+extern rwlock_t vmlist_lock;
+extern struct vm_struct *vmlist;
+
+#endif /* _LINUX_VMALLOC_H */