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Red-black tree based physical memory management

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Balazs Gerofi
2017-06-30 22:02:37 +09:00
parent 5cdd194856
commit 201a7e2595
3 changed files with 462 additions and 8 deletions
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31
lib/include/ihk/page_alloc.h
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@ -5,16 +5,19 @@
* Declare functions acquire physical pages and assign virtual addresses
* to them.
* \author Taku Shimosawa <shimosawa@is.s.u-tokyo.ac.jp> \par
* Copyright (C) 2011 - 2012 Taku Shimosawa
* \author Balazs Gerofi <bgerofi@riken.jp> \par
*/
/*
* HISTORY
* 2016/12 - bgerofi - NUMA support
* 2017/06 - bgerofi - rewrite physical memory mngt for red-black trees
*/
#ifndef __HEADER_GENERIC_IHK_PAGE_ALLOC
#define __HEADER_GENERIC_IHK_PAGE_ALLOC
#include <list.h>
#include <rbtree.h>
/* XXX: Physical memory management shouldn't be part of IHK */
struct node_distance {
@ -22,14 +25,40 @@ struct node_distance {
int distance;
};
#define IHK_RBTREE_ALLOCATOR
#ifdef IHK_RBTREE_ALLOCATOR
struct free_chunk {
unsigned long addr, size;
struct rb_node node;
};
#endif
struct ihk_mc_numa_node {
int id;
int linux_numa_id;
int type;
struct list_head allocators;
struct node_distance *nodes_by_distance;
#ifdef IHK_RBTREE_ALLOCATOR
struct rb_root free_chunks;
mcs_lock_node_t lock;
unsigned long nr_free_pages;
unsigned long min_addr;
unsigned long max_addr;
#endif
};
#ifdef IHK_RBTREE_ALLOCATOR
unsigned long ihk_numa_alloc_pages(struct ihk_mc_numa_node *node,
int npages, int p2align);
void ihk_numa_free_pages(struct ihk_mc_numa_node *node,
unsigned long addr, int npages);
int ihk_numa_add_free_pages(struct ihk_mc_numa_node *node,
unsigned long addr, unsigned long size);
#endif
struct ihk_page_allocator_desc {
unsigned long start, end;
unsigned int last;