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00036 #ifndef __FRAME_H__
00037 #define __FRAME_H__
00038
00039 #include <arch/types.h>
00040 #include <typedefs.h>
00041 #include <adt/list.h>
00042 #include <synch/spinlock.h>
00043 #include <mm/buddy.h>
00044 #include <arch/mm/page.h>
00045 #include <arch/mm/frame.h>
00046
00047 #define ONE_FRAME 0
00048 #define TWO_FRAMES 1
00049
00050 #ifdef ARCH_STACK_FRAMES
00051 #define STACK_FRAMES ARCH_STACK_FRAMES
00052 #else
00053 #define STACK_FRAMES ONE_FRAME
00054 #endif
00055
00056 #define ZONES_MAX 16
00058 #define ZONE_JOIN 0x1
00060 #define FRAME_KA 0x1
00061 #define FRAME_PANIC 0x2
00062 #define FRAME_ATOMIC 0x4
00063 #define FRAME_NO_RECLAIM 0x8
00064
00065 #define FRAME_OK 0
00066 #define FRAME_NO_MEMORY 1
00067 #define FRAME_ERROR 2
00068
00069 static inline __address PFN2ADDR(pfn_t frame)
00070 {
00071 return (__address)(frame << FRAME_WIDTH);
00072 }
00073
00074 static inline pfn_t ADDR2PFN(__address addr)
00075 {
00076 return (pfn_t)(addr >> FRAME_WIDTH);
00077 }
00078
00079 static inline count_t SIZE2FRAMES(size_t size)
00080 {
00081 if (!size)
00082 return 0;
00083 return (count_t)((size-1) >> FRAME_WIDTH)+1;
00084 }
00085
00086 #define IS_BUDDY_ORDER_OK(index, order) ((~(((__native) -1) << (order)) & (index)) == 0)
00087 #define IS_BUDDY_LEFT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
00088 #define IS_BUDDY_RIGHT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
00089 #define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
00090 #define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
00091
00092 #define frame_alloc(order, flags) frame_alloc_generic(order, flags, NULL, NULL)
00093 #define frame_alloc_rc(order, flags, status) frame_alloc_generic(order, flags, status, NULL)
00094 #define frame_alloc_rc_zone(order, flags, status, zone) frame_alloc_generic(order, flags, status, zone)
00095
00096 extern void frame_init(void);
00097 extern pfn_t frame_alloc_generic(__u8 order, int flags, int * status, int *pzone);
00098 extern void frame_free(pfn_t pfn);
00099 extern void frame_reference_add(pfn_t pfn);
00100
00101 extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
00102 void * frame_get_parent(pfn_t frame, int hint);
00103 void frame_set_parent(pfn_t frame, void *data, int hint);
00104 void frame_mark_unavailable(pfn_t start, count_t count);
00105 __address zone_conf_size(count_t count);
00106 void zone_merge(int z1, int z2);
00107 void zone_merge_all(void);
00108
00109
00110
00111
00112 extern void zone_print_list(void);
00113 void zone_print_one(int znum);
00114
00115 #endif
00116