Changeset 6b781c0 in mainline for kernel/arch/arm32/include/asm.h

Timestamp:

2007-06-08T15:02:49Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

c03ee1c

Parents:

3ee8a075

Message:

Merge arm32 into trunk.

File:

• kernel/arch/arm32/include/asm.h (modified) (5 diffs)

kernel/arch/arm32/include/asm.h

@@ -1 +1 @@
 /*
- * Copyright (c) 2003-2004 Jakub Jermar
+ * Copyright (c) 2007 Michal Kebrt
  * All rights reserved.
  *
@@ -30 +30 @@
  * @{
  */
-/** @file
+/** @file 
+ *  @brief Declarations of functions implemented in assembly.
  */
 
@@ -37 +38 @@
 
 #include <arch/types.h>
+#include <arch/stack.h>
+#include <config.h>
+#include <arch/interrupt.h>
 
+/** No such instruction on ARM to sleep CPU. */
 static inline void cpu_sleep(void)
 {
-        /* TODO */
 }
 
-/** Return base address of current stack
+/** Return base address of current stack.
  * 
  * Return the base address of the current stack.
@@ -51 +55 @@
 static inline uintptr_t get_stack_base(void)
 {
-        /* TODO */      
-        return NULL;
+        uintptr_t v;
+        asm volatile (
+                "and %0, sp, %1\n" 
+                : "=r" (v) 
+                : "r" (~(STACK_SIZE - 1))
+        );
+        return v;
 }
 
@@ -60 +69 @@
     uintptr_t entry);
 
-extern ipl_t interrupts_disable(void);
-extern ipl_t interrupts_enable(void);
-extern void interrupts_restore(ipl_t ipl);
-extern ipl_t interrupts_read(void);
-
 #endif