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authorChris Zankel <czankel@tensilica.com>2005-06-24 07:01:26 +0200
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 09:05:22 +0200
commit9a8fd5589902153a134111ed7a40f9cca1f83254 (patch)
tree6f7a06de25bdf0b2d94623794c2cbbc66b5a77f6 /include/asm-xtensa/current.h
parent[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 5 (diff)
downloadlinux-9a8fd5589902153a134111ed7a40f9cca1f83254.tar.xz
linux-9a8fd5589902153a134111ed7a40f9cca1f83254.zip
[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 6
The attached patches provides part 6 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-xtensa/current.h')
-rw-r--r--include/asm-xtensa/current.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-xtensa/current.h b/include/asm-xtensa/current.h
new file mode 100644
index 000000000000..8d1eb5d78649
--- /dev/null
+++ b/include/asm-xtensa/current.h
@@ -0,0 +1,38 @@
+/*
+ * include/asm-xtensa/current.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CURRENT_H
+#define _XTENSA_CURRENT_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/thread_info.h>
+
+struct task_struct;
+
+static inline struct task_struct *get_current(void)
+{
+ return current_thread_info()->task;
+}
+
+#define current get_current()
+
+#else
+
+#define CURRENT_SHIFT 13
+
+#define GET_CURRENT(reg,sp) \
+ GET_THREAD_INFO(reg,sp); \
+ l32i reg, reg, TI_TASK \
+
+#endif
+
+
+#endif /* XTENSA_CURRENT_H */