Changeset 635 for trunk/kernel/mm/page.c

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/page.c (modified) (2 diffs)

trunk/kernel/mm/page.c

@@ -46 +46 @@
 
         remote_busylock_init( XPTR( local_cxy , &page->lock ), LOCK_PAGE_STATE );
-
-        list_entry_init( &page->list );
 }
 
@@ -93 +91 @@
 }
 
+
+
+
+///////////////////////////////////////////////
+inline void page_remote_init( xptr_t  page_xp )
+{
+        hal_remote_memset( page_xp , 0 , sizeof(page_t) );
+
+    cxy_t    page_cxy = GET_CXY( page_xp );
+    page_t * page_ptr = GET_PTR( page_xp );
+
+        remote_busylock_init( XPTR( page_cxy , &page_ptr->lock ), LOCK_PAGE_STATE );
+}
 
 ////////////////////////////////////////////////////