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authorDavid Gibson <david@gibson.dropbear.id.au>2005-11-09 13:04:06 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-10 11:23:53 +1100
commit584224e4095d8abcf2bef38efacc291be9a44c20 (patch)
tree4f4e37fe772880c85c03ea08fdd2c46aab92eb08 /include/asm-powerpc/current.h
parentc5ff700116a56a870ef40cc4ac6f19bf2530b466 (diff)
downloadop-kernel-dev-584224e4095d8abcf2bef38efacc291be9a44c20.zip
op-kernel-dev-584224e4095d8abcf2bef38efacc291be9a44c20.tar.gz
[PATCH] powerpc: Merge current.h
This patch merges current.h. This is a one-big-ifdef merge, but both versions are so tiny, I think we can live with it. While we're at it, we get rid of the fairly pointless redirection through get_current() in the ppc64 version. Built and booted on POWER5 LPAR (ARCH=powerpc & ARCH=ppc64). Built for 32-bit pmac (ARCH=powerpc & ARCH=ppc). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/current.h')
-rw-r--r--include/asm-powerpc/current.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/include/asm-powerpc/current.h b/include/asm-powerpc/current.h
new file mode 100644
index 0000000..82cd4a9
--- /dev/null
+++ b/include/asm-powerpc/current.h
@@ -0,0 +1,27 @@
+#ifndef _ASM_POWERPC_CURRENT_H
+#define _ASM_POWERPC_CURRENT_H
+
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+struct task_struct;
+
+#ifdef __powerpc64__
+#include <asm/paca.h>
+
+#define current (get_paca()->__current)
+
+#else
+
+/*
+ * We keep `current' in r2 for speed.
+ */
+register struct task_struct *current asm ("r2");
+
+#endif
+
+#endif /* _ASM_POWERPC_CURRENT_H */
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