Changeset 626 for trunk/kernel/syscalls/sys_barrier.c

Timestamp:

Apr 29, 2019, 7:25:09 PM (6 years ago)

Author:

alain

Message:

This version has been tested on the sort multithreaded application
for TSAR_IOB architectures ranging from 1 to 8 clusters.
It fixes three bigs bugs:
1) the dev_ioc device API has been modified: the dev_ioc_sync_read()
and dev_ioc_sync_write() function use now extended pointers on the
kernel buffer to access a mapper stored in any cluster.
2) the hal_uspace API has been modified: the hal_copy_to_uspace()
and hal_copy_from_uspace() functions use now a (cxy,ptr) couple
to identify the target buffer (equivalent to an extended pointer.
3) an implementation bug has been fixed in the assembly code contained
in the hal_copy_to_uspace() and hal_copy_from_uspace() functions.

File:

• trunk/kernel/syscalls/sys_barrier.c (modified) (1 diff)

trunk/kernel/syscalls/sys_barrier.c

@@ -104 +104 @@
   
                 // copy barrier attributes into kernel space
-                hal_copy_from_uspace( &k_attr , (void*)attr , sizeof(pthread_barrierattr_t) );
+                hal_copy_from_uspace( local_cxy,
+                                      &k_attr,
+                                      (void*)attr,
+                                      sizeof(pthread_barrierattr_t) );
 
                 if ( count != k_attr.x_size * k_attr.y_size *k_attr.nthreads )