Changeset 626 for trunk/kernel/kern

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.

Location:

trunk/kernel/kern

Files:

• do_syscall.c (modified) (3 diffs)
• kernel_init.c (modified) (3 diffs)
• process.c (modified) (7 diffs)

trunk/kernel/kern/do_syscall.c

@@ -2 +2 @@
  * do_syscall.c - architecture independant entry-point for system calls.
  * 
- * Author    Alain Greiner (2016,2017,2018)
+ * Author    Alain Greiner (2016,2017,2018, 2019)
  *
  * Copyright (c) UPMC Sorbonne Universites
@@ -106 +106 @@
 
     sys_exit,               // 50
+    sys_sync,               // 51
+    sys_fsync,              // 52
 };
 
@@ -169 +171 @@
 
     case SYS_EXIT:                         return "EXIT";             // 50
+    case SYS_SYNC:                         return "SYNC";             // 51
+    case SYS_FSYNC:                        return "FSYNc";            // 52
 
     default:                               return "undefined";

trunk/kernel/kern/kernel_init.c

@@ -898 +898 @@
 }
 
+
+
+
+
+/////////////////////////////////
+// kleenex debug function
+/////////////////////////////////
+void display_fat( uint32_t step )
+{
+    fatfs_ctx_t * fatfs_ctx = fs_context[FS_TYPE_FATFS].extend;
+    if( fatfs_ctx != NULL ) 
+    {
+        printk("\n[%s] step %d at cycle %d\n", __FUNCTION__, step, (uint32_t)hal_get_cycles() );
+        xptr_t     mapper_xp = fatfs_ctx->fat_mapper_xp;
+        mapper_display_page( mapper_xp , 0 , 128 );
+    }
+    else
+    {
+        printk("\n[%s] step %d : fatfs context not initialized\n", __FUNCTION__, step );
+    }
+}
+
+
+
+
+
 ///////////////////////////////////////////////////////////////////////////////////////////
 // This function is the entry point for the kernel initialisation.
@@ -1143 +1169 @@
         if( CONFIG_VFS_ROOT_IS_FATFS )
         {
-            // 1. allocate memory for FATFS context extension in cluster 0
+            // 1. allocate memory for FATFS context in cluster 0
             fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
 
@@ -1155 +1181 @@
             // 2. access boot device to initialize FATFS context
             fatfs_ctx_init( fatfs_ctx );
- 
+
             // 3. get various informations from FATFS context
             uint32_t root_dir_cluster = fatfs_ctx->root_dir_cluster;

trunk/kernel/kern/process.c

@@ -1447 +1447 @@
 #if( DEBUG_PROCESS_MAKE_FORK & 1 )
 cycle = (uint32_t)hal_get_cycles();
-if( DEBUG_PROCESS_MAKE_EXEC < cycle )
+if( DEBUG_PROCESS_MAKE_FORK < cycle )
 printk("\n[%s] thread[%x,%x] / child takes TXT ownership / cycle %d\n",
 __FUNCTION__ , pid, trdid, cycle );
@@ -1556 +1556 @@
 #if DEBUG_PROCESS_MAKE_EXEC
 uint32_t cycle = (uint32_t)hal_get_cycles();
-if( DEBUG_PROCESS_MAKE_EXEC < cycle )
+if( local_cxy == 0x11 )
 printk("\n[%s] thread[%x,%x] enters for %s / cycle %d\n",
 __FUNCTION__, pid, thread->trdid, path, cycle );
@@ -1579 +1579 @@
 #if (DEBUG_PROCESS_MAKE_EXEC & 1)
 cycle = (uint32_t)hal_get_cycles();
-if( DEBUG_PROCESS_MAKE_EXEC < cycle )
+if( local_cxy == 0x11 )
 printk("\n[%s] thread[%x,%x] opened file <%s> / cycle %d\n",
 __FUNCTION__, pid, thread->trdid, path, cycle );
@@ -1589 +1589 @@
 #if (DEBUG_PROCESS_MAKE_EXEC & 1)
 cycle = (uint32_t)hal_get_cycles();
-if( DEBUG_PROCESS_MAKE_EXEC < cycle )
+if( local_cxy == 0x11 )
 printk("\n[%s] thread[%x,%x] deleted existing threads / cycle %d\n",
 __FUNCTION__, pid, thread->trdid, cycle );
@@ -1599 +1599 @@
 #if( DEBUG_PROCESS_MAKE_EXEC & 1 )
 cycle = (uint32_t)hal_get_cycles();
-if( DEBUG_PROCESS_MAKE_EXEC < cycle )
+if( local_cxy == 0x11 )
 printk("\n[%s] thread[%x,%x] completed VMM reset / cycle %d\n",
 __FUNCTION__, pid, thread->trdid, cycle );
@@ -1616 +1616 @@
 #if( DEBUG_PROCESS_MAKE_EXEC & 1 )
 cycle = (uint32_t)hal_get_cycles();
-if( DEBUG_PROCESS_MAKE_EXEC < cycle )
+if( local_cxy == 0x11 )
 printk("\n[%s] thread[%x,%x] registered args/envs vsegs / cycle %d\n",
 __FUNCTION__, pid, thread->trdid, cycle );
@@ -1634 +1634 @@
 #if( DEBUG_PROCESS_MAKE_EXEC & 1 )
 cycle = (uint32_t)hal_get_cycles();
-if( DEBUG_PROCESS_MAKE_EXEC < cycle )
+if( local_cxy == 0x11 )
 printk("\n[%s] thread[%x,%x] registered code/data vsegs / cycle %d\n",
 __FUNCTION__, pid, thread->trdid, cycle );