Changeset 0fa6044 in mainline for kernel/arch/sparc64/include/asm.h

Timestamp:

2006-08-29T15:35:44Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

e11ae91

Parents:

32fffef0

Message:

sparc64 work.

Fix bug introduced in revision 1852. When fixing CWP,
the input registers of the current window (i.e. output
registers of the window belonging to the interrupted
context) must be preserved. Preserve those registers
in memory. Sure there exist more efficient ways how to
copy the inputs.

Simplify before_thread_runs_arch(), resp. after_thread_ran_arch(),
and make them install, resp. uninstall, DTLB locked mapping for
eventual userspace window buffer.

File:

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

kernel/arch/sparc64/include/asm.h

@@ -316 +316 @@
 }
 
+/** Flush all valid register windows to memory. */
+static inline void flushw(void)
+{
+        __asm__ volatile ("flushw\n");
+}
+
 void cpu_halt(void);
 void cpu_sleep(void);