Changeset ed166f7 in mainline for kernel/arch/sparc64/src/sparc64.c

Timestamp:

2006-08-31T18:53:14Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

6767c1d

Parents:

e0b241f

Message:

A lot of untested sparc64 stuff:

• Write ASID to hardware when a thread is about to run in userspace.
• Add userspace() and switch_to_userspace() functions.
• Handle special cases when the userspace spill/fill handler causes MMU trap.
• Resolve some TODOs in the existing sparc64 code.
• sparc64 has now C99 compliant header guards.
• Formatting and indentation fixes.

File:

• kernel/arch/sparc64/src/sparc64.c (modified) (3 diffs)

kernel/arch/sparc64/src/sparc64.c

@@ -35 +35 @@
 #include <arch.h>
 #include <debug.h>
+#include <config.h>
 #include <arch/trap/trap.h>
 #include <arch/console.h>
@@ -42 +43 @@
 #include <arch/boot/boot.h>
 #include <arch/arch.h>
-#include <arch/mm/tlb.h>
-#include <mm/asid.h>
+#include <arch/mm/page.h>
+#include <arch/stack.h>
+#include <userspace.h>
 
 bootinfo_t bootinfo;
@@ -92 +94 @@
 }
 
+/** Switch to userspace. */
+void userspace(uspace_arg_t *kernel_uarg)
+{
+        switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
+                ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
+                - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS));
+
+        for (;;)
+                ;
+        /* not reached */
+}
+
 /** @}
  */