Changeset 637 for trunk/kernel/mm

Timestamp:

Jul 18, 2019, 2:06:55 PM (5 years ago)

Author:

alain

Message:

Introduce the non-standard pthread_parallel_create() system call
and re-write the <fft> and <sort> applications to improve the
intrinsic paralelism in applications.

Location:

trunk/kernel/mm

Files:

• mapper.c (modified) (5 diffs)
• ppm.c (modified) (2 diffs)

trunk/kernel/mm/mapper.c

@@ -442 +442 @@
         if ( page_xp == XPTR_NULL ) return -1;
 
-        // compute cluster and pointers on page in mapper
-        xptr_t     map_xp  = ppm_page2base( page_xp );
-        uint8_t  * map_ptr = GET_PTR( map_xp );
-        cxy_t      map_cxy = GET_CXY( map_xp );
+        // compute extended pointer in kernel mapper
+        xptr_t     map_xp  = ppm_page2base( page_xp ) + page_offset;
 
 #if (DEBUG_MAPPER_MOVE_USER & 1)
@@ -458 +456 @@
         if( to_buffer )
         {
-            hal_copy_to_uspace( map_cxy , map_ptr + page_offset , buf_ptr , page_bytes ); 
+            hal_copy_to_uspace( buf_ptr , map_xp , page_bytes ); 
 
 #if DEBUG_MAPPER_MOVE_USER & 1
@@ -464 +462 @@
 printk("\n[%s] thread[%x,%x] moved %d bytes / mapper %s (%x,%x) -> user buffer(%x,%x)\n",
 __FUNCTION__, this->process->pid, this->trdid, page_bytes,
-name, map_cxy, map_ptr + page_offset, local_cxy, buf_ptr );
+name, GET_CXY(map_xp), GET_PTR(map_xp), local_cxy, buf_ptr );
 #endif
 
@@ -471 +469 @@
         {
             ppm_page_do_dirty( page_xp ); 
-            hal_copy_from_uspace( map_cxy , map_ptr + page_offset , buf_ptr , page_bytes ); 
+            hal_copy_from_uspace( map_xp , buf_ptr , page_bytes ); 
 
 #if DEBUG_MAPPER_MOVE_USER & 1
@@ -477 +475 @@
 printk("\n[%s] thread[%x,%x] moved %d bytes / user buffer(%x,%x) -> mapper %s (%x,%x)\n",
 __FUNCTION__, this->process->pid, this->trdid, page_bytes,
-local_cxy, buf_ptr, name, map_cxy, map_ptr + page_offset );
+local_cxy, buf_ptr, name, GET_CXY(map_xp), GET_PTR(map_xp) );
 mapper_display_page(  mapper_xp , page_id, 128 );
 #endif

trunk/kernel/mm/ppm.c

@@ -533 +533 @@
     page_xp = XPTR( page_cxy , page_ptr );
     
-
     // get local pointer on PPM (same in all clusters)
         ppm_t * ppm = &LOCAL_CLUSTER->ppm;
@@ -568 +567 @@
                 buddy_index = current_index ^ (1 << current_order);
                 buddy_ptr   = pages_tbl + buddy_index;
+
+        // get buddy order
+        buddy_order = hal_remote_l32( XPTR( page_cxy , &buddy_ptr->order ) );
         
         // exit loop if buddy not found