linux-kernel - Re: [PATCH v5 0/6] make io{read|write}64 globally usable

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Message-ID: <VI1PR0401MB2591E913B99E7B24E8BF828298B20@VI1PR0401MB2591.eurprd04.prod.outlook.com>
Date:   Mon, 31 Jul 2017 10:29:28 +0000
From:   Horia Geantă <horia.geanta@....com>
To:     Logan Gunthorpe <logang@...tatee.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        "linux-ntb@...glegroups.com" <linux-ntb@...glegroups.com>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
CC:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Stephen Bates <sbates@...thlin.com>
Subject: Re: [PATCH v5 0/6] make io{read|write}64 globally usable

On 7/27/2017 2:19 AM, Logan Gunthorpe wrote:
> Changes since v4:
> - Add functions so the powerpc implementation of iomap.c compiles. (As
> noticed by Horia)

Tested-by: Horia Geantă <horia.geanta@....com>

more exactly: crypto self-tests pass on CAAM crypto engine
on NXP platforms LS1046A (ARMv8 A53), T1040 (PPC64 e5500), P4080 (PPC
e500mc).

> 
> Changes since v3:
> 
> - I noticed powerpc didn't use the appropriate functions seeing
> readq/writeq were not defined when iomap.h was included. Thus I've
> included a patch to adjust this
> - Fixed some mistakes with a couple of the defines in io-64-nonatomic*
> headers
> - Fixed a typo noticed by Horia.
> 
> (earlier versions were drastically different)
> 
> 
> Horia Geantă (1):
>   crypto: caam: cleanup CONFIG_64BIT ifdefs when using io{read|write}64
> 
> Logan Gunthorpe (5):
>   powerpc: io.h: move iomap.h include so that it can use readq/writeq
>     defs
>   powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo}
>   iomap: introduce io{read|write}64_{lo_hi|hi_lo}
>   io-64-nonatomic: add io{read|write}64[be]{_lo_hi|_hi_lo} macros
>   ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks
> 
>  arch/powerpc/include/asm/io.h         |   6 +-
>  arch/powerpc/kernel/iomap.c           |  40 +++++++++++
>  drivers/crypto/caam/regs.h            |  35 ++-------
>  drivers/ntb/hw/intel/ntb_hw_intel.c   |  30 +-------
>  include/asm-generic/iomap.h           |  26 +++++--
>  include/linux/io-64-nonatomic-hi-lo.h |  60 ++++++++++++++++
>  include/linux/io-64-nonatomic-lo-hi.h |  60 ++++++++++++++++
>  lib/iomap.c                           | 132 ++++++++++++++++++++++++++++++++++
>  8 files changed, 322 insertions(+), 67 deletions(-)
> 
> --
> 2.11.0
>