Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/kernel/arch/sparc/include/asm/cacheflush_32.h b/kernel/arch/sparc/include/asm/cacheflush_32.h
new file mode 100644
index 000000000..121640061
--- /dev/null
+++ b/kernel/arch/sparc/include/asm/cacheflush_32.h
@@ -0,0 +1,58 @@
+#ifndef _SPARC_CACHEFLUSH_H
+#define _SPARC_CACHEFLUSH_H
+
+#include <asm/cachetlb_32.h>
+
+#define flush_cache_all() \
+	sparc32_cachetlb_ops->cache_all()
+#define flush_cache_mm(mm) \
+	sparc32_cachetlb_ops->cache_mm(mm)
+#define flush_cache_dup_mm(mm) \
+	sparc32_cachetlb_ops->cache_mm(mm)
+#define flush_cache_range(vma,start,end) \
+	sparc32_cachetlb_ops->cache_range(vma, start, end)
+#define flush_cache_page(vma,addr,pfn) \
+	sparc32_cachetlb_ops->cache_page(vma, addr)
+#define flush_icache_range(start, end)		do { } while (0)
+#define flush_icache_page(vma, pg)		do { } while (0)
+
+#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+	do {							\
+		flush_cache_page(vma, vaddr, page_to_pfn(page));\
+		memcpy(dst, src, len);				\
+	} while (0)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+	do {							\
+		flush_cache_page(vma, vaddr, page_to_pfn(page));\
+		memcpy(dst, src, len);				\
+	} while (0)
+
+#define __flush_page_to_ram(addr) \
+	sparc32_cachetlb_ops->page_to_ram(addr)
+#define flush_sig_insns(mm,insn_addr) \
+	sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
+#define flush_page_for_dma(addr) \
+	sparc32_cachetlb_ops->page_for_dma(addr)
+
+void sparc_flush_page_to_ram(struct page *page);
+
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
+#define flush_dcache_page(page)			sparc_flush_page_to_ram(page)
+#define flush_dcache_mmap_lock(mapping)		do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
+
+#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.
+ */
+void flush_user_windows(void);
+void kill_user_windows(void);
+void flushw_all(void);
+
+#endif /* _SPARC_CACHEFLUSH_H */