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[09/31] Add powerpc-specific parity functions

Message ID 56F77FBA.1090304@gmail.com
State New
Headers show

Commit Message

Zeng Zhaoxiu March 27, 2016, 6:37 a.m. UTC
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(+)
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Patch

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>