Changeset ed166f7 in mainline for kernel/arch/sparc64/include/interrupt.h

Timestamp:

2006-08-31T18:53:14Z (19 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/include/interrupt.h (modified) (2 diffs)

kernel/arch/sparc64/include/interrupt.h

@@ -34 +34 @@
  */
 
-#ifndef __sparc64_INTERRUPT_H__
-#define __sparc64_INTERRUPT_H__
+#ifndef KERN_sparc64_INTERRUPT_H_
+#define KERN_sparc64_INTERRUPT_H_
 
 #include <typedefs.h>
 #include <arch/types.h>
+#include <arch/regdef.h>
 
 #define IRQ_COUNT       1       /* TODO */
@@ -53 +54 @@
 static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
 {
-        /* TODO */
+        istate->tpc = retaddr;
 }
+
 static inline int istate_from_uspace(istate_t *istate)
 {
-        /* TODO */
-        return 0;
+        return !(istate->tstate & TSTATE_PRIV_BIT);
 }
+
 static inline unative_t istate_get_pc(istate_t *istate)
 {
-        /* TODO */
-        return 0;
+        return istate->tpc;
 }