From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELscresoiO1pNVccCxPootWFVSCmXupaESTdx56DBeBxhN5yFxl1US9lMPxEJctCiuAHchvG ARC-Seal: i=1; a=rsa-sha256; t=1521650277; cv=none; d=google.com; s=arc-20160816; b=KoNc5j2FWiEGd/yEncASf5wJe7DTPJjLAT4DOByiBGT4moBQ3GWwWo4YJXCRFC4NES p4udsknCwRPvJHKBneK5eFgpg4VKhJUKNeM6AKf4I0XEqT0J7cRGZP6D25BdAF8SBc0q IyhNoetMx3Bduszz9KX74OXFowpzecXbEpT19iz5+A+EIOCuEMasW2pNty7H6ZcQ+rm3 tB5XKwtX1yAPVZLe3xkwvIjMihTwdljIYsrtXhydvs4HGNiR3wxXCDmR7jpAwK7v/3VU hyNSpabYAB/2u3cEubuS/d0BQLWq9FgMYdqucoVlGmbnG8h4/H7ottKfX3YiTmIrdH43 DrAA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=subject:references:in-reply-to:message-id:date:cc:to:from :arc-authentication-results; bh=RLdGUMLKpu6r8zQJf0H5Dr0BYHcxSWwJxV8ioOO48Wc=; b=Xu/xeDPl/SPE/fxct/UKZ7ghPQhcmcY/19waAbA9Qzrnp6UGP0jqS1+5fd4jWh2Mrx OdUw7XPzJotg0RvsbHFWqxS2JoJCdqHxoy8LNF9/i4RX0LKCW1W+ZJrmbLGEMjtiGvGl qpyPlT8FYQiRZ0VC1pstqd1RXjqISOuansvS9Fs2tgBHYSBXvJt2oM+zHayTAEva7iru ijYSmk9F0wd5Zl8Lr1lgun7DvBL45ZnSQol9WydoLpQnnLqfeStRhBE5byQJWDyXImdI scJ8hZ31fe3eXSsKttj/x4215wa2FLpvDUiXGY+38ucrHI56zDCHYnfm48nEYPYDc34d inCw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of gunthorp@deltatee.com designates 207.54.116.67 as permitted sender) smtp.mailfrom=gunthorp@deltatee.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of gunthorp@deltatee.com designates 207.54.116.67 as permitted sender) smtp.mailfrom=gunthorp@deltatee.com From: Logan Gunthorpe To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-ntb@googlegroups.com, linux-crypto@vger.kernel.org, Greg Kroah-Hartman Cc: Arnd Bergmann , Andy Shevchenko , =?UTF-8?q?Horia=20Geant=C4=83?= , Logan Gunthorpe , Christoph Hellwig , Alan Cox Date: Wed, 21 Mar 2018 10:37:42 -0600 Message-Id: <20180321163745.12286-8-logang@deltatee.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180321163745.12286-1-logang@deltatee.com> References: <20180321163745.12286-1-logang@deltatee.com> X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: linux-ntb@googlegroups.com, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-crypto@vger.kernel.org, gregkh@linuxfoundation.org, arnd@arndb.de, andy.shevchenko@gmail.com, horia.geanta@nxp.com, logang@deltatee.com, hch@lst.de, gnomes@lxorguk.ukuu.org.uk X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH v13 07/10] io-64-nonatomic: add io{read|write}64[be]{_lo_hi|_hi_lo} macros X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1595565961518870565?= X-GMAIL-MSGID: =?utf-8?q?1595565961518870565?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: This patch adds generic io{read|write}64[be]{_lo_hi|_hi_lo} macros if they are not already defined by the architecture. (As they are provided by the generic iomap library). The patch also points io{read|write}64[be] to the variant specified by the header name. 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 Reviewed-by: Andy Shevchenko Cc: Christoph Hellwig Cc: Arnd Bergmann Cc: Alan Cox Cc: Greg Kroah-Hartman --- include/linux/io-64-nonatomic-hi-lo.h | 64 +++++++++++++++++++++++++++++++++++ include/linux/io-64-nonatomic-lo-hi.h | 64 +++++++++++++++++++++++++++++++++++ 2 files changed, 128 insertions(+) diff --git a/include/linux/io-64-nonatomic-hi-lo.h b/include/linux/io-64-nonatomic-hi-lo.h index 862d786a904f..ae21b72cce85 100644 --- a/include/linux/io-64-nonatomic-hi-lo.h +++ b/include/linux/io-64-nonatomic-hi-lo.h @@ -55,4 +55,68 @@ static inline void hi_lo_writeq_relaxed(__u64 val, volatile void __iomem *addr) #define writeq_relaxed hi_lo_writeq_relaxed #endif +#ifndef ioread64_hi_lo +#define ioread64_hi_lo ioread64_hi_lo +static inline u64 ioread64_hi_lo(void __iomem *addr) +{ + u32 low, high; + + high = ioread32(addr + sizeof(u32)); + low = ioread32(addr); + + return low + ((u64)high << 32); +} +#endif + +#ifndef iowrite64_hi_lo +#define iowrite64_hi_lo iowrite64_hi_lo +static inline void iowrite64_hi_lo(u64 val, void __iomem *addr) +{ + iowrite32(val >> 32, addr + sizeof(u32)); + iowrite32(val, addr); +} +#endif + +#ifndef ioread64be_hi_lo +#define ioread64be_hi_lo ioread64be_hi_lo +static inline u64 ioread64be_hi_lo(void __iomem *addr) +{ + u32 low, high; + + high = ioread32be(addr); + low = ioread32be(addr + sizeof(u32)); + + return low + ((u64)high << 32); +} +#endif + +#ifndef iowrite64be_hi_lo +#define iowrite64be_hi_lo iowrite64be_hi_lo +static inline void iowrite64be_hi_lo(u64 val, void __iomem *addr) +{ + iowrite32be(val >> 32, addr); + iowrite32be(val, addr + sizeof(u32)); +} +#endif + +#ifndef ioread64 +#define ioread64_is_nonatomic +#define ioread64 ioread64_hi_lo +#endif + +#ifndef iowrite64 +#define iowrite64_is_nonatomic +#define iowrite64 iowrite64_hi_lo +#endif + +#ifndef ioread64be +#define ioread64be_is_nonatomic +#define ioread64be ioread64be_hi_lo +#endif + +#ifndef iowrite64be +#define iowrite64be_is_nonatomic +#define iowrite64be iowrite64be_hi_lo +#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 d042e7bb5adb..faaa842dbdb9 100644 --- a/include/linux/io-64-nonatomic-lo-hi.h +++ b/include/linux/io-64-nonatomic-lo-hi.h @@ -55,4 +55,68 @@ static inline void lo_hi_writeq_relaxed(__u64 val, volatile void __iomem *addr) #define writeq_relaxed lo_hi_writeq_relaxed #endif +#ifndef ioread64_lo_hi +#define ioread64_lo_hi ioread64_lo_hi +static inline u64 ioread64_lo_hi(void __iomem *addr) +{ + u32 low, high; + + low = ioread32(addr); + high = ioread32(addr + sizeof(u32)); + + return low + ((u64)high << 32); +} +#endif + +#ifndef iowrite64_lo_hi +#define iowrite64_lo_hi iowrite64_lo_hi +static inline void iowrite64_lo_hi(u64 val, void __iomem *addr) +{ + iowrite32(val, addr); + iowrite32(val >> 32, addr + sizeof(u32)); +} +#endif + +#ifndef ioread64be_lo_hi +#define ioread64be_lo_hi ioread64be_lo_hi +static inline u64 ioread64be_lo_hi(void __iomem *addr) +{ + u32 low, high; + + low = ioread32be(addr + sizeof(u32)); + high = ioread32be(addr); + + return low + ((u64)high << 32); +} +#endif + +#ifndef iowrite64be_lo_hi +#define iowrite64be_lo_hi iowrite64be_lo_hi +static inline void iowrite64be_lo_hi(u64 val, void __iomem *addr) +{ + iowrite32be(val, addr + sizeof(u32)); + iowrite32be(val >> 32, addr); +} +#endif + +#ifndef ioread64 +#define ioread64_is_nonatomic +#define ioread64 ioread64_lo_hi +#endif + +#ifndef iowrite64 +#define iowrite64_is_nonatomic +#define iowrite64 iowrite64_lo_hi +#endif + +#ifndef ioread64be +#define ioread64be_is_nonatomic +#define ioread64be ioread64be_lo_hi +#endif + +#ifndef iowrite64be +#define iowrite64be_is_nonatomic +#define iowrite64be iowrite64be_lo_hi +#endif + #endif /* _LINUX_IO_64_NONATOMIC_LO_HI_H_ */ -- 2.11.0