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From: Fabio Estevam <festevam@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 04/13] include: Add ffs64 header file
Date: Sat, 24 Oct 2015 10:28:04 -0200	[thread overview]
Message-ID: <1445689693-21436-4-git-send-email-festevam@gmail.com> (raw)
In-Reply-To: <1445689693-21436-1-git-send-email-festevam@gmail.com>

From: Fabio Estevam <fabio.estevam@freescale.com>

The ffs64() implementation for powerpc is not found in the Linux kernel,
so use the ffs64 header file from barebox.

Imported from barebox v2015.10.0.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
 arch/powerpc/include/asm/ffs64.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 arch/powerpc/include/asm/ffs64.h

diff --git a/arch/powerpc/include/asm/ffs64.h b/arch/powerpc/include/asm/ffs64.h
new file mode 100644
index 0000000..620874c
--- /dev/null
+++ b/arch/powerpc/include/asm/ffs64.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright 2013 GE Intelligent Platforms, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+#include <linux/log2.h>
+
+static inline int ffs64(u64 x)
+{
+	return __ilog2_u64(x & -x) + 1ull;
+}
-- 
1.9.1

  parent reply	other threads:[~2015-10-24 12:28 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-24 12:28 [U-Boot] [PATCH 01/13] include: Add log2 header from the kernel Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 02/13] include: Add generic bitops headers Fabio Estevam
2015-10-24 13:32   ` Tom Rini
2015-10-24 12:28 ` [U-Boot] [PATCH 03/13] compat: Remove is_power_of_2() definition Fabio Estevam
2015-10-24 13:32   ` Tom Rini
2015-10-26  5:11   ` Heiko Schocher
2015-10-26 10:22     ` Fabio Estevam
2015-10-26 10:39       ` Heiko Schocher
2015-10-26 14:29         ` Fabio Estevam
2015-10-26 15:18           ` Fabio Estevam
2015-10-26 15:30           ` Heiko Schocher
2015-10-24 12:28 ` Fabio Estevam [this message]
2015-10-24 13:32   ` [U-Boot] [PATCH 04/13] include: Add ffs64 header file Tom Rini
2015-10-24 13:37     ` Fabio Estevam
2015-10-24 14:54       ` Fabio Estevam
2015-10-24 17:51         ` Tom Rini
2015-10-24 12:28 ` [U-Boot] [PATCH 05/13] powerpc: Remove __ilog2_u64 and ffs4 from bitops Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 06/13] ARM: bitops: Use the generic bitops headers Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 07/13] x86: " Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 08/13] m68k: " Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 09/13] blackfin: " Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 10/13] sh: " Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 11/13] sandbox: " Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 12/13] spi: sf_ops: Add SPI protection mechanism from the kernel Fabio Estevam
2015-10-24 12:28 ` [U-Boot] [PATCH 13/13] spi: Add SPI NOR protection mechanism Fabio Estevam
2015-10-24 13:32 ` [U-Boot] [PATCH 01/13] include: Add log2 header from the kernel Tom Rini

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