Changeset 635 for trunk/kernel/mm/ppm.h

Timestamp:

Jun 26, 2019, 11:42:37 AM (5 years ago)

Author:

alain

Message:

This version is a major evolution: The physical memory allocators,
defined in the kmem.c, ppm.c, and kcm.c files have been modified
to support remote accesses. The RPCs that were previously user
to allocate physical memory in a remote cluster have been removed.
This has been done to cure a dead-lock in case of concurrent page-faults.

This version 2.2 has been tested on a (4 clusters / 2 cores per cluster)
TSAR architecture, for both the "sort" and the "fft" applications.

File:

• trunk/kernel/mm/ppm.h (modified) (1 diff)

trunk/kernel/mm/ppm.h

@@ -123 +123 @@
  * @ cxy       : remote cluster identifier.
  * @ order     : ln2( number of 4 Kbytes pages)
- * @ returns an extended pointer on the page descriptor if success / XPTR_NULL if error.
- ****************************************************************************************/
-xptr_t  ppm_remote_alloc_pages( cxy_t    cxy,
+ * @ returns a local pointer on remote page descriptor if success / XPTR_NULL if error.
+ ****************************************************************************************/
+void *  ppm_remote_alloc_pages( cxy_t    cxy,
                                 uint32_t order );