Changeset 626 for trunk/kernel/kern/kernel_init.c

Timestamp:

Apr 29, 2019, 7:25:09 PM (5 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/kern/kernel_init.c (modified) (3 diffs)

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;