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From: "Maciej W. Rozycki" <macro@orcam.me.uk>
To: Christoph Hellwig <hch@lst.de>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
	iommu@lists.linux-foundation.org
Subject: Re: [PATCH 5/6] driver core: lift dma_default_coherent into common code
Date: Mon, 8 Feb 2021 16:57:33 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.21.2102081654060.35623@angie.orcam.me.uk> (raw)
In-Reply-To: <20210208145024.3320420-6-hch@lst.de>

On Mon, 8 Feb 2021, Christoph Hellwig wrote:

> diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
> index e98cc977a735b2..f8c9663e7faa10 100644
> --- a/arch/mips/mti-malta/malta-setup.c
> +++ b/arch/mips/mti-malta/malta-setup.c
> @@ -143,7 +143,7 @@ static void __init plat_setup_iocoherency(void)
>  			pr_crit("IOCU OPERATION DISABLED BY SWITCH - DEFAULTING TO SW IO COHERENCY\n");
>  	}
>  
> -	if (supported)
> +	if (supported) {
>  		if (dma_force_noncoherent) {
>  			pr_info("Hardware DMA cache coherency disabled\n");
>  			return;

 I think this has to go with 1/6; otherwise compilation breaks between 
then and now AFAICT.

 Do you need to have this verified anyhow?  I only have a non-coherent 5Kc 
Malta though.

  Maciej

  parent reply	other threads:[~2021-02-08 18:28 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-08 14:50 MIPS noncoherent DMA cleanups Christoph Hellwig
2021-02-08 14:50 ` [PATCH 1/6] MIPS/malta: simplify plat_setup_iocoherency Christoph Hellwig
2021-02-08 14:50 ` [PATCH 2/6] MIPS/alchemy: factor out the DMA coherent setup Christoph Hellwig
2021-02-08 14:50 ` [PATCH 3/6] MIPS: move the {no,}nocoherentio options to the malta setup code Christoph Hellwig
2021-02-08 14:50 ` [PATCH 4/6] MIPS: refactor the maybe coherent DMA indicators Christoph Hellwig
2021-02-09 13:12   ` Thomas Bogendoerfer
2021-02-10  8:57     ` Christoph Hellwig
2021-02-08 14:50 ` [PATCH 5/6] driver core: lift dma_default_coherent into common code Christoph Hellwig
2021-02-08 15:00   ` Greg Kroah-Hartman
2021-02-08 15:57   ` Maciej W. Rozycki [this message]
2021-02-08 16:10     ` Christoph Hellwig
2021-02-09 11:23       ` Maciej W. Rozycki
2021-02-15 13:13         ` Maciej W. Rozycki
2021-02-21  3:32           ` Maciej W. Rozycki
2021-02-22  7:59             ` Christoph Hellwig
2021-02-22 10:42               ` Maciej W. Rozycki
2021-02-27 18:33                 ` Maciej W. Rozycki
2021-02-09 13:06   ` Thomas Bogendoerfer
2021-02-08 14:50 ` [PATCH 6/6] MIPS: remove CONFIG_DMA_PERDEV_COHERENT Christoph Hellwig
2021-02-09  1:36   ` Huacai Chen

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