Changeset 632 for trunk/kernel/mm/page.c

Timestamp:

May 28, 2019, 2:56:04 PM (5 years ago)

Author:

alain

Message:

This version replace the RPC by direct remote memory access
for physical pages allacation/release.
It is commited before being tested.

File:

• trunk/kernel/mm/page.c (modified) (1 diff)

trunk/kernel/mm/page.c

@@ -93 +93 @@
 }
 
-////////////////////////////////
-void page_print( page_t * page )
+
+////////////////////////////////////////////////////
+inline void page_remote_set_flag( xptr_t    page_xp,
+                                  uint32_t  value )
 {
-        printk("*** Page %d : base = %x / flags = %x / order = %d / count = %d\n",
-                page->index,
-                GET_PTR( ppm_page2base( XPTR( local_cxy , page ) ) ),
-                page->flags,
-                page->order,
-                page->refcount );
+    cxy_t    page_cxy = GET_CXY( page_xp );
+    page_t * page_ptr = GET_PTR( page_xp );
+
+        hal_remote_atomic_or( XPTR( page_cxy , &page_ptr->flags ) , value );
 }
 
+//////////////////////////////////////////////////////
+inline void page_remote_clear_flag( xptr_t    page_xp,
+                                    uint32_t  value )
+{
+    cxy_t    page_cxy = GET_CXY( page_xp );
+    page_t * page_ptr = GET_PTR( page_xp );
+
+        hal_remote_atomic_and( XPTR( page_cxy , &page_ptr->flags ) , value );
+}
+
+/////////////////////////////////////////////////////
+inline bool_t page_remote_is_flag( xptr_t    page_xp,
+                                   uint32_t  value )
+{
+    cxy_t    page_cxy = GET_CXY( page_xp );
+    page_t * page_ptr = GET_PTR( page_xp );
+
+    uint32_t flags = hal_remote_l32( XPTR( page_cxy , &page_ptr->flags ) );
+    
+    return (flags & value) ? 1 : 0;
+}
+
+/////////////////////////////////////////////////////
+inline void page_remote_refcount_up( xptr_t page_xp )
+{
+    cxy_t    page_cxy = GET_CXY( page_xp );
+    page_t * page_ptr = GET_PTR( page_xp );
+
+    hal_remote_atomic_add( XPTR( page_cxy , &page_ptr->refcount ) , 1 );
+}
+
+///////////////////////////////////////////////////////
+inline void page_remote_refcount_down( xptr_t page_xp )
+{
+    cxy_t    page_cxy = GET_CXY( page_xp );
+    page_t * page_ptr = GET_PTR( page_xp );
+
+    hal_remote_atomic_add( XPTR( page_cxy , &page_ptr->refcount ) , -1 );
+}
+
+///////////////////////////////////////////
+void page_remote_display( xptr_t  page_xp )
+{
+    page_t  page;   // local copy of page decriptor
+
+    hal_remote_memcpy( XPTR( local_cxy , &page ) , page_xp , sizeof( page_t ) );
+                      
+        printk("*** Page %d in cluster %x : ppn %x / flags %x / order %d / refcount %d\n",
+                page.index,
+            GET_CXY( page_xp ),
+                ppm_page2ppn( page_xp ),
+                page.flags,
+                page.order,
+                page.refcount );
+}
+
+
+