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shmat/shmget for utcbs are working for now.

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faults on shared memory needs to be implemented.
This commit is contained in:
Bahadir Balban
2008-03-19 22:26:38 +00:00
parent 55d24dbbdf
commit 466138f125
10 changed files with 130 additions and 84 deletions
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2
tasks/mm0/include/mmap.h
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@@ -25,4 +25,6 @@ int do_munmap(void *vaddr, unsigned long size, struct tcb *task);
int do_mmap(struct vm_file *mapfile, unsigned long f_offset, struct tcb *t,
unsigned long map_address, unsigned int flags, unsigned int pages);
int mmap_address_validate(unsigned long map_address, unsigned int vm_flags);
#endif /* __MM0_MMAP_H__ */

8
tasks/mm0/include/shm.h
View File

@@ -12,7 +12,7 @@ struct shm_descriptor {
struct list_head list; /* SHM list, used by mm0 */
struct vm_file *owner;
void *shm_addr; /* The virtual address for segment. */
unsigned long size; /* Size of the area */
unsigned long size; /* Size of the area in pages */
unsigned int flags;
int refcnt;
};
@@ -23,12 +23,6 @@ struct shm_descriptor {
#define SHM_SHMMIN 1
#define SHM_SHMMAX (PAGE_SIZE * 10)
/*
* NOTE: This flags the unique shm vaddr pool. If its not globally unique
* and shm areas are cached, on ARMv5 cache aliasing occurs.
*/
#define SHM_DISJOINT_VADDR_POOL
/* Initialises shared memory bookkeeping structures */
void shm_init();