From: Logan Gunthorpe <logang@deltatee.com>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-ntb@googlegroups.com, linux-crypto@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jyri Sarha <jsarha@ti.com>, Stephen Bates <sbates@raithlin.com>,
Logan Gunthorpe <logang@deltatee.com>,
Christoph Hellwig <hch@lst.de>,
Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Subject: [PATCH v2 1/3] io-64-nonatomic: add io{read|write}64[be] macros
Date: Tue, 27 Jun 2017 17:02:02 -0600 [thread overview]
Message-ID: <20170627230204.16410-2-logang@deltatee.com> (raw)
In-Reply-To: <20170627230204.16410-1-logang@deltatee.com>
This patch adds io{read|write}64[be] macros to point to the readq/writeq
in use.
This is because new drivers are encouraged to use ioreadXX, et al instead
of readX[1], et al -- and mixing ioreadXX with readq is pretty ugly.
[1] ldd3: section 9.4.2
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
cc: Christoph Hellwig <hch@lst.de>
cc: Arnd Bergmann <arnd@arndb.de>
cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/io-64-nonatomic-hi-lo.h | 16 ++++++++++++++++
include/linux/io-64-nonatomic-lo-hi.h | 16 ++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/include/linux/io-64-nonatomic-hi-lo.h b/include/linux/io-64-nonatomic-hi-lo.h
index defcc4644ce3..07a75831244f 100644
--- a/include/linux/io-64-nonatomic-hi-lo.h
+++ b/include/linux/io-64-nonatomic-hi-lo.h
@@ -54,4 +54,20 @@ static inline void hi_lo_writeq_relaxed(__u64 val, volatile void __iomem *addr)
#define writeq_relaxed hi_lo_writeq_relaxed
#endif
+#ifndef ioread64
+#define ioread64 readq
+#endif
+
+#ifndef iowrite64
+#define iowrite64 writeq
+#endif
+
+#ifndef ioread64be
+#define ioread64be(p) be64_to_cpu(ioread64(p))
+#endif
+
+#ifndef iowrite64be
+#define iowrite64be(v, p) iowrite64(cpu_to_be64(v), (p))
+#endif
+
#endif /* _LINUX_IO_64_NONATOMIC_HI_LO_H_ */
diff --git a/include/linux/io-64-nonatomic-lo-hi.h b/include/linux/io-64-nonatomic-lo-hi.h
index 084461a4e5ab..3d0565e67175 100644
--- a/include/linux/io-64-nonatomic-lo-hi.h
+++ b/include/linux/io-64-nonatomic-lo-hi.h
@@ -54,4 +54,20 @@ static inline void lo_hi_writeq_relaxed(__u64 val, volatile void __iomem *addr)
#define writeq_relaxed lo_hi_writeq_relaxed
#endif
+#ifndef ioread64
+#define ioread64 readq
+#endif
+
+#ifndef iowrite64
+#define iowrite64 writeq
+#endif
+
+#ifndef ioread64be
+#define ioread64be(p) be64_to_cpu(ioread64(p))
+#endif
+
+#ifndef iowrite64be
+#define iowrite64be(v, p) iowrite64(cpu_to_be64(v), (p))
+#endif
+
#endif /* _LINUX_IO_64_NONATOMIC_LO_HI_H_ */
--
2.11.0
next prev parent reply other threads:[~2017-06-27 23:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 23:02 [PATCH v2 0/3] make io{read|write}64 more globally usable Logan Gunthorpe
2017-06-27 23:02 ` Logan Gunthorpe [this message]
2017-06-28 10:11 ` [PATCH v2 1/3] io-64-nonatomic: add io{read|write}64[be] macros Arnd Bergmann
2017-06-28 16:02 ` Logan Gunthorpe
2017-06-27 23:02 ` [PATCH v2 2/3] ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks Logan Gunthorpe
2017-06-27 23:02 ` [PATCH v2 3/3] crypto: caam: cleanup CONFIG_64BIT ifdefs when using io{read|write}64 Logan Gunthorpe
2017-06-28 10:20 ` Arnd Bergmann
2017-06-28 16:51 ` Logan Gunthorpe
2017-06-29 7:52 ` Horia Geantă
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