Changeset 32fffef0 in mainline for kernel/arch/sparc64/include/barrier.h

Timestamp:

2006-08-29T11:06:57Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

0fa6044

Parents:

c8ea4a8b

Message:

Define architecture-specific thread sub-constructors and sub-destructors on all architectures.
Define the THREAD_FLAG_USPACE which means that the thread runs in user space.
The forementioned changes allow for allocating of user window buffer on sparc64
threads that execute in userspace.

A lot of formatting and indentation fixes.

File:

• kernel/arch/sparc64/include/barrier.h (modified) (1 diff)

kernel/arch/sparc64/include/barrier.h

@@ -52 +52 @@
          * The FLUSH instruction takes address parameter.
          * As such, it may trap if the address is not found in DTLB.
-         * However, JPS1 implementations are free to ignore the trap.
+         *
+         * The entire kernel text is mapped by a locked ITLB and
+         * DTLB entries. Therefore, when this function is called,
+         * the %o7 register will always be in the range mapped by
+         * DTLB.
          */
          
-        __asm__ volatile ("flush %0\n" :: "r" (0x400000));
+        __asm__ volatile ("flush %o7\n");
 }