From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx48e/QJGe0/K1ovpQSSLK/ziXxLh/cZzjlscoV68ov1q8TUZ9sJUsEgMc79LNF/pWHuWAryN ARC-Seal: i=1; a=rsa-sha256; t=1524248659; cv=none; d=google.com; s=arc-20160816; b=PW7beLbZmizYBz8af6jwpRMg4jlTV7QyqjhyXFmJZ3LFznTFZlyBSBzYxoeE9wFGu5 dyBc0LLhwVP7jpieUHbEtj7fa9geNPCxpzXtLC3BJ8yS7zcdlCHvMybXXUDPdSKhvxNS vddVz5X2RInltmu7jCgKFtKbxHpUM9V9PhC0gAZNPFXUx9MyzT9uaGS8TYzrTRqK9fSU KCaPi8wd17fwRPXV18RDXbtE77nPb5FbsXpL1vql2ypUAS2vksBLPbuQ0nbmo1YSf2yb F894HlXdhVgdwDhKgV04miH7zpDjFZ3/DF9Odxjsi18Cn1hmn6QmonoQqwV9Ds433AqM L/XA== 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=ClEaH8XRiPa4FFCEIot10Vx3pYVTQlbjDr5HXZTAbQAiu4a+XIoys0kiW2kHln1zrs pCiVZ8D+X4kvDm0AF3DdApiWbppfrMcma7D1wx/P9jRNb30BBKAaFXb5FmGlqA44ko2L gSiTBf5pmddKw22A0188Zbf11UkOkxGRO3vcQlNHJV5lPZh2JthK0Xt/7E0jJqG2jcTP 5log+Ifwfk3cCd8vbCnsd1eU85kJSDUHUAq3h08IcoyMKB/vHhWnAp8mEe1NKyVbRFIz Y+1zimDN40Lz5dBRx/xLiH21mWZv3a/I9TR9EM87UAQ2MUe935KLmcOKZe2Lio7jkBcK NIbA== 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, Andrew Morton Cc: Arnd Bergmann , Greg Kroah-Hartman , Andy Shevchenko , =?UTF-8?q?Horia=20Geant=C4=83?= , Logan Gunthorpe , Christoph Hellwig , Alan Cox Date: Fri, 20 Apr 2018 12:24:00 -0600 Message-Id: <20180420182403.9691-5-logang@deltatee.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180420182403.9691-1-logang@deltatee.com> References: <20180420182403.9691-1-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, akpm@linux-foundation.org, arnd@arndb.de, gregkh@linuxfoundation.org, 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 v16 4/7] 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?1598290562746125581?= X-GMAIL-MSGID: =?utf-8?q?1598290562746125581?= 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