diff options
Diffstat (limited to 'drivers/staging/ramster/xvmalloc_int.h')
-rw-r--r-- | drivers/staging/ramster/xvmalloc_int.h | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/drivers/staging/ramster/xvmalloc_int.h b/drivers/staging/ramster/xvmalloc_int.h deleted file mode 100644 index b5f1f7febcf6..000000000000 --- a/drivers/staging/ramster/xvmalloc_int.h +++ /dev/null @@ -1,95 +0,0 @@ -/* - * xvmalloc memory allocator - * - * Copyright (C) 2008, 2009, 2010 Nitin Gupta - * - * This code is released using a dual license strategy: BSD/GPL - * You can choose the licence that better fits your requirements. - * - * Released under the terms of 3-clause BSD License - * Released under the terms of GNU General Public License Version 2.0 - */ - -#ifndef _XV_MALLOC_INT_H_ -#define _XV_MALLOC_INT_H_ - -#include <linux/kernel.h> -#include <linux/types.h> - -/* User configurable params */ - -/* Must be power of two */ -#ifdef CONFIG_64BIT -#define XV_ALIGN_SHIFT 3 -#else -#define XV_ALIGN_SHIFT 2 -#endif -#define XV_ALIGN (1 << XV_ALIGN_SHIFT) -#define XV_ALIGN_MASK (XV_ALIGN - 1) - -/* This must be greater than sizeof(link_free) */ -#define XV_MIN_ALLOC_SIZE 32 -#define XV_MAX_ALLOC_SIZE (PAGE_SIZE - XV_ALIGN) - -/* - * Free lists are separated by FL_DELTA bytes - * This value is 3 for 4k pages and 4 for 64k pages, for any - * other page size, a conservative (PAGE_SHIFT - 9) is used. - */ -#if PAGE_SHIFT == 16 -#define FL_DELTA_SHIFT 4 -#else -#define FL_DELTA_SHIFT (PAGE_SHIFT - 9) -#endif -#define FL_DELTA (1 << FL_DELTA_SHIFT) -#define FL_DELTA_MASK (FL_DELTA - 1) -#define NUM_FREE_LISTS ((XV_MAX_ALLOC_SIZE - XV_MIN_ALLOC_SIZE) \ - / FL_DELTA + 1) - -#define MAX_FLI DIV_ROUND_UP(NUM_FREE_LISTS, BITS_PER_LONG) - -/* End of user params */ - -enum blockflags { - BLOCK_FREE, - PREV_FREE, - __NR_BLOCKFLAGS, -}; - -#define FLAGS_MASK XV_ALIGN_MASK -#define PREV_MASK (~FLAGS_MASK) - -struct freelist_entry { - struct page *page; - u16 offset; - u16 pad; -}; - -struct link_free { - struct page *prev_page; - struct page *next_page; - u16 prev_offset; - u16 next_offset; -}; - -struct block_header { - union { - /* This common header must be XV_ALIGN bytes */ - u8 common[XV_ALIGN]; - struct { - u16 size; - u16 prev; - }; - }; - struct link_free link; -}; - -struct xv_pool { - ulong flbitmap; - ulong slbitmap[MAX_FLI]; - u64 total_pages; /* stats */ - struct freelist_entry freelist[NUM_FREE_LISTS]; - spinlock_t lock; -}; - -#endif |