* [PATCH 09/31] Add powerpc-specific parity functions
[not found] <1458788612-4367-1-git-send-email-zhaoxiu.zeng@gmail.com>
@ 2016-03-27 6:37 ` zhaoxiu.zeng
0 siblings, 0 replies; only message in thread
From: zhaoxiu.zeng @ 2016-03-27 6:37 UTC (permalink / raw)
To: Benjamin Herrenschmidt, Paul Mackerras, Michael Ellerman,
Torsten Duwe, Scott Wood, Anton Blanchard, Christophe Leroy
Cc: linux-kernel, linuxppc-dev
From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
---
arch/powerpc/include/asm/bitops.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 59abc62..90ee0f2 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -269,8 +269,15 @@ unsigned int __arch_hweight16(unsigned int w);
unsigned int __arch_hweight32(unsigned int w);
unsigned long __arch_hweight64(__u64 w);
#include <asm-generic/bitops/const_hweight.h>
+#define __arch_parity4(w) (__arch_hweight8((w) & 0xf) & 1)
+#define __arch_parity8(w) (__arch_hweight8(w) & 1)
+#define __arch_parity16(w) (__arch_hweight16(w) & 1)
+#define __arch_parity32(w) (__arch_hweight32(w) & 1)
+#define __arch_parity64(w) ((unsigned int)__arch_hweight64(w) & 1)
+#include <asm-generic/bitops/const_parity.h>
#else
#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
#endif
#include <asm-generic/bitops/find.h>
--
2.5.5
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