Changeset 1f12fab in mainline for kernel/arch/sparc32/include/arch/mm/tlb.h

Timestamp:

2013-10-07T20:00:34Z (11 years ago)

Author:

Jakub Klama <jakub.klama@…>

Branches:

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

Children:

a73ebf0

Parents:

80d9d83

Message:

First attempt to implement preemptive trap handlers
and switch to userspace. Preemptive traps are needed
for at least page faults, as page fault handling code
can trigger window underflow/overflow exceptions.

This commit also introduces userspace window buffer
for saving userspace register windows (just as in
sparc64).

These changes are unfinished and far from working
correctly.

File:

• kernel/arch/sparc32/include/arch/mm/tlb.h (modified) (3 diffs)

kernel/arch/sparc32/include/arch/mm/tlb.h

@@ -1 +1 @@
 /*
- * Copyright (c) 2010 Martin Decky
+ * Copyright (c) 2013 Jakub Klama
  * All rights reserved.
  *
@@ -27 +27 @@
  */
 
-/** @addtogroup abs32lemm
+/** @addtogroup sparc32mm
  * @{
  */
@@ -33 +33 @@
  */
 
-#ifndef KERN_abs32le_TLB_H_
-#define KERN_abs32le_TLB_H_
+#ifndef KERN_sparc32_TLB_H_
+#define KERN_sparc32_TLB_H_
+
+#define MMU_CONTROL             0x000
+#define MMU_CONTEXT_TABLE       0x100
+#define MMU_CONTEXT             0x200
+#define MMU_FAULT_STATUS        0x300
+#define MMU_FAULT_ADDRESS       0x400
 
 #endif