* [PATCH 03/31] Add alpha-specific parity functions
[not found] <1458788612-4367-1-git-send-email-zhaoxiu.zeng@gmail.com>
@ 2016-03-27 5:43 ` zhaoxiu.zeng
2016-03-28 18:33 ` Richard Henderson
0 siblings, 1 reply; 2+ messages in thread
From: zhaoxiu.zeng @ 2016-03-27 5:43 UTC (permalink / raw)
To: Richard Henderson, Ivan Kokshaysky, Matt Turner, Zeng Zhaoxiu,
linux-alpha
Cc: linux-kernel@vger.kernel.org
From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
---
arch/alpha/include/asm/bitops.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
index 4bdfbd4..95a43fa 100644
--- a/arch/alpha/include/asm/bitops.h
+++ b/arch/alpha/include/asm/bitops.h
@@ -421,11 +421,38 @@ static inline unsigned int __arch_hweight8(unsigned int w)
{
return __arch_hweight64(w & 0xff);
}
+
+static inline unsigned int __arch_parity64(unsigned long w)
+{
+ return (unsigned int)__kernel_ctpop(w) & 1;
+}
+
+static inline unsigned int __arch_parity32(unsigned int w)
+{
+ return __arch_parity64(w);
+}
+
+static inline unsigned int __arch_parity16(unsigned int w)
+{
+ return __arch_parity64(w & 0xffff);
+}
+
+static inline unsigned int __arch_parity8(unsigned int w)
+{
+ return __arch_parity64(w & 0xff);
+}
+
+static inline unsigned int __arch_parity4(unsigned int w)
+{
+ return __arch_parity64(w & 0xf);
+}
#else
#include <asm-generic/bitops/arch_hweight.h>
+#include <asm-generic/bitops/arch_parity.h>
#endif
#include <asm-generic/bitops/const_hweight.h>
+#include <asm-generic/bitops/const_parity.h>
#endif /* __KERNEL__ */
--
2.5.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 03/31] Add alpha-specific parity functions
2016-03-27 5:43 ` [PATCH 03/31] Add alpha-specific parity functions zhaoxiu.zeng
@ 2016-03-28 18:33 ` Richard Henderson
0 siblings, 0 replies; 2+ messages in thread
From: Richard Henderson @ 2016-03-28 18:33 UTC (permalink / raw)
To: zhaoxiu.zeng, Ivan Kokshaysky, Matt Turner, linux-alpha
Cc: linux-kernel@vger.kernel.org
On 03/26/2016 10:43 PM, zhaoxiu.zeng wrote:
> From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
>
> Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
> ---
> arch/alpha/include/asm/bitops.h | 27 +++++++++++++++++++++++++++
> 1 file changed, 27 insertions(+)
Acked-by: Richard Henderson <rth@twiddle.net>
r~
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2016-03-28 18:33 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <1458788612-4367-1-git-send-email-zhaoxiu.zeng@gmail.com>
2016-03-27 5:43 ` [PATCH 03/31] Add alpha-specific parity functions zhaoxiu.zeng
2016-03-28 18:33 ` Richard Henderson
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox