From d550bbd40c0e10aefa05103dadbe0ae42e683707 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 28 Mar 2012 18:30:03 +0100 Subject: Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for Sparc. Signed-off-by: David Howells cc: sparclinux@vger.kernel.org --- arch/sparc/include/asm/cacheflush_32.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/sparc/include/asm/cacheflush_32.h') diff --git a/arch/sparc/include/asm/cacheflush_32.h b/arch/sparc/include/asm/cacheflush_32.h index 2e468773f250..68431b47a22a 100644 --- a/arch/sparc/include/asm/cacheflush_32.h +++ b/arch/sparc/include/asm/cacheflush_32.h @@ -83,4 +83,13 @@ extern void sparc_flush_page_to_ram(struct page *page); #define flush_cache_vmap(start, end) flush_cache_all() #define flush_cache_vunmap(start, end) flush_cache_all() +/* When a context switch happens we must flush all user windows so that + * the windows of the current process are flushed onto its stack. This + * way the windows are all clean for the next process and the stack + * frames are up to date. + */ +extern void flush_user_windows(void); +extern void kill_user_windows(void); +extern void flushw_all(void); + #endif /* _SPARC_CACHEFLUSH_H */ -- cgit v1.2.3