gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

shmobj: Support large page

Browse Source 
Mixing page sizes is allowed by shmobj.

Change-Id: Ic48b71da2db6ce3f68fa3dbc8ad5ae96347d6018
Refs: #1381
Refs: #1458
This commit is contained in:
Ken Sato
2020-01-15 15:45:17 +09:00
committed by Masamichi Takagi
parent 4b66373813
commit 9a60997ea0
32 changed files with 2212 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
kernel/include/memobj.h
View File

@@ -17,6 +17,7 @@
#include <ihk/types.h>
#include <ihk/atomic.h>
#include <ihk/lock.h>
#include <ihk/mm.h>
#include <errno.h>
#include <list.h>
#include <pager.h>
@@ -61,6 +62,8 @@ typedef uintptr_t memobj_copy_page_func_t(struct memobj *obj, uintptr_t orgphys,
typedef int memobj_flush_page_func_t(struct memobj *obj, uintptr_t phys, size_t pgsize);
typedef int memobj_invalidate_page_func_t(struct memobj *obj, uintptr_t phys, size_t pgsize);
typedef int memobj_lookup_page_func_t(struct memobj *obj, off_t off, int p2align, uintptr_t *physp, unsigned long *flag);
typedef int memobj_update_page_func_t(struct memobj *obj, page_table_t pt,
struct page *orig_page, void *vaddr);
struct memobj_ops {
memobj_free_func_t *free;
@@ -69,6 +72,7 @@ struct memobj_ops {
memobj_flush_page_func_t *flush_page;
memobj_invalidate_page_func_t *invalidate_page;
memobj_lookup_page_func_t *lookup_page;
memobj_update_page_func_t *update_page;
};
static inline int memobj_ref(struct memobj *obj)
@@ -131,6 +135,15 @@ static inline int memobj_lookup_page(struct memobj *obj, off_t off,
return -ENXIO;
}
static inline int memobj_update_page(struct memobj *obj, page_table_t pt,
struct page *orig_page, void *vaddr)
{
if (obj->ops->update_page) {
return (*obj->ops->update_page)(obj, pt, orig_page, vaddr);
}
return -ENXIO;
}
static inline int memobj_has_pager(struct memobj *obj)
{
return !!(obj->flags & MF_HAS_PAGER);