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From: Sascha Hauer <sha@pengutronix.de>
To: Ahmad Fatoum <ahmad@a3f.at>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] include: <io.h>: define (read|write)[bwlq]_relaxed
Date: Fri, 11 Jun 2021 13:30:28 +0200	[thread overview]
Message-ID: <20210611113028.GC20470@pengutronix.de> (raw)
In-Reply-To: <20210611080155.3555976-1-ahmad@a3f.at>

On Fri, Jun 11, 2021 at 10:01:55AM +0200, Ahmad Fatoum wrote:
> For Linux, It's always correct to substitute any of the read or
> write _relaxed functions with their non relaxed counterpart.
> Define functions that do this.
> 
> Unlike with Linux, they doesn't per se affect performance: barebox
> writel doesn't imply memory barriers, instead it depends on
> the architecture support to map IO memory regions as non-bufferable.
> 
> Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
> ---
>  drivers/clk/rockchip/clk.h        |  3 ---
>  drivers/gpio/gpio-davinci.c       |  3 ---
>  drivers/regulator/stm32-vrefbuf.c |  4 +---
>  drivers/spi/atmel-quadspi.c       |  3 ---
>  include/io.h                      | 32 +++++++++++++++++++++++++++++++
>  5 files changed, 33 insertions(+), 12 deletions(-)

Applied, thanks

Sascha

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      reply	other threads:[~2021-06-11 11:31 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-11  8:01 Ahmad Fatoum
2021-06-11 11:30 ` Sascha Hauer [this message]

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