Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

[pandora-kernel.git] / include / linux / genalloc.h

diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
index 690c428..5bbebda 100644 (file)
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@ -9,6 +9,8 @@
  */
 
 
+#ifndef __GENALLOC_H__
+#define __GENALLOC_H__
 /*
  *  General purpose special memory pool descriptor.
  */
@@ -24,12 +26,34 @@ struct gen_pool {
 struct gen_pool_chunk {
        spinlock_t lock;
        struct list_head next_chunk;    /* next chunk in pool */
+       phys_addr_t phys_addr;          /* physical starting address of memory chunk */
        unsigned long start_addr;       /* starting address of memory chunk */
        unsigned long end_addr;         /* ending address of memory chunk */
        unsigned long bits[0];          /* bitmap for allocating memory chunk */
 };
 
 extern struct gen_pool *gen_pool_create(int, int);
-extern int gen_pool_add(struct gen_pool *, unsigned long, size_t, int);
+extern phys_addr_t gen_pool_virt_to_phys(struct gen_pool *pool, unsigned long);
+extern int gen_pool_add_virt(struct gen_pool *, unsigned long, phys_addr_t,
+                            size_t, int);
+/**
+ * gen_pool_add - add a new chunk of special memory to the pool
+ * @pool: pool to add new memory chunk to
+ * @addr: starting address of memory chunk to add to pool
+ * @size: size in bytes of the memory chunk to add to pool
+ * @nid: node id of the node the chunk structure and bitmap should be
+ *       allocated on, or -1
+ *
+ * Add a new chunk of special memory to the specified pool.
+ *
+ * Returns 0 on success or a -ve errno on failure.
+ */
+static inline int gen_pool_add(struct gen_pool *pool, unsigned long addr,
+                              size_t size, int nid)
+{
+       return gen_pool_add_virt(pool, addr, -1, size, nid);
+}
+extern void gen_pool_destroy(struct gen_pool *);
 extern unsigned long gen_pool_alloc(struct gen_pool *, size_t);
 extern void gen_pool_free(struct gen_pool *, unsigned long, size_t);
+#endif /* __GENALLOC_H__ */