0,0 → 1,129 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* Copyright (c) 2005 Sergey Bondari |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - 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. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* 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. |
*/ |
|
/** @addtogroup genericmm |
* @{ |
*/ |
/** @file |
*/ |
|
#ifndef KERN_FRAME_H_ |
#define KERN_FRAME_H_ |
|
#include <arch/types.h> |
#include <adt/list.h> |
#include <synch/spinlock.h> |
#include <mm/buddy.h> |
#include <arch/mm/page.h> |
#include <arch/mm/frame.h> |
|
#define ONE_FRAME 0 |
#define TWO_FRAMES 1 |
#define FOUR_FRAMES 2 |
|
|
#ifdef ARCH_STACK_FRAMES |
#define STACK_FRAMES ARCH_STACK_FRAMES |
#else |
#define STACK_FRAMES ONE_FRAME |
#endif |
|
/** Maximum number of zones in system. */ |
#define ZONES_MAX 16 |
|
/** If possible, merge with neighbouring zones. */ |
#define ZONE_JOIN 0x1 |
|
/** Convert the frame address to kernel va. */ |
#define FRAME_KA 0x1 |
/** Do not panic and do not sleep on failure. */ |
#define FRAME_ATOMIC 0x2 |
/** Do not start reclaiming when no free memory. */ |
#define FRAME_NO_RECLAIM 0x4 |
|
static inline uintptr_t PFN2ADDR(pfn_t frame) |
{ |
return (uintptr_t) (frame << FRAME_WIDTH); |
} |
|
static inline pfn_t ADDR2PFN(uintptr_t addr) |
{ |
return (pfn_t) (addr >> FRAME_WIDTH); |
} |
|
static inline count_t SIZE2FRAMES(size_t size) |
{ |
if (!size) |
return 0; |
return (count_t) ((size - 1) >> FRAME_WIDTH) + 1; |
} |
|
static inline size_t FRAMES2SIZE(count_t frames) |
{ |
return (size_t) (frames << FRAME_WIDTH); |
} |
|
#define IS_BUDDY_ORDER_OK(index, order) \ |
((~(((unative_t) -1) << (order)) & (index)) == 0) |
#define IS_BUDDY_LEFT_BLOCK(zone, frame) \ |
(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0) |
#define IS_BUDDY_RIGHT_BLOCK(zone, frame) \ |
(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1) |
#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) \ |
(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0) |
#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) \ |
(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1) |
|
#define frame_alloc(order, flags) \ |
frame_alloc_generic(order, flags, NULL) |
|
extern void frame_init(void); |
extern void *frame_alloc_generic(uint8_t order, int flags, unsigned int *pzone); |
extern void frame_free(uintptr_t frame); |
extern void frame_reference_add(pfn_t pfn); |
|
extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags); |
extern void *frame_get_parent(pfn_t frame, unsigned int hint); |
extern void frame_set_parent(pfn_t frame, void *data, unsigned int hint); |
extern void frame_mark_unavailable(pfn_t start, count_t count); |
extern uintptr_t zone_conf_size(count_t count); |
extern void zone_merge(unsigned int z1, unsigned int z2); |
extern void zone_merge_all(void); |
extern uint64_t zone_total_size(void); |
|
/* |
* Console functions |
*/ |
extern void zone_print_list(void); |
extern void zone_print_one(unsigned int znum); |
|
#endif |
|
/** @} |
*/ |