netdev - Re: [PATCH 02/12] riscv: only select DMA_DIRECT_REMAP from RISCV_ISA

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231016-chomp-vitally-b6c004be7809@wendy>
Date: Mon, 16 Oct 2023 13:55:40 +0100
From: Conor Dooley <conor.dooley@...rochip.com>
To: Christoph Hellwig <hch@....de>
CC: Greg Ungerer <gerg@...ux-m68k.org>, <iommu@...ts.linux.dev>, Paul Walmsley
	<paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Conor Dooley
	<conor@...nel.org>, Geert Uytterhoeven <geert+renesas@...der.be>, Magnus Damm
	<magnus.damm@...il.com>, Robin Murphy <robin.murphy@....com>, Marek
 Szyprowski <m.szyprowski@...sung.com>, Geert Uytterhoeven
	<geert@...ux-m68k.org>, Wei Fang <wei.fang@....com>, Shenwei Wang
	<shenwei.wang@....com>, Clark Wang <xiaoning.wang@....com>, NXP Linux Team
	<linux-imx@....com>, <linux-m68k@...ts.linux-m68k.org>,
	<netdev@...r.kernel.org>, <linux-riscv@...ts.infradead.org>,
	<linux-renesas-soc@...r.kernel.org>, Jim Quinlan <james.quinlan@...adcom.com>
Subject: Re: [PATCH 02/12] riscv: only select DMA_DIRECT_REMAP from
 RISCV_ISA_ZICBOM

On Mon, Oct 16, 2023 at 07:47:44AM +0200, Christoph Hellwig wrote:
> RISCV_DMA_NONCOHERENT is also used for whacky non-standard
> non-coherent ops that use different hooks in dma-direct.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks,
Conor.

> ---
>  arch/riscv/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 0ac0b538379718..9c48fecc671918 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -273,7 +273,6 @@ config RISCV_DMA_NONCOHERENT
>  	select ARCH_HAS_SYNC_DMA_FOR_CPU
>  	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>  	select DMA_BOUNCE_UNALIGNED_KMALLOC if SWIOTLB
> -	select DMA_DIRECT_REMAP if MMU
>  
>  config RISCV_NONSTANDARD_CACHE_OPS
>  	bool
> @@ -549,6 +548,7 @@ config RISCV_ISA_ZICBOM
>  	depends on RISCV_ALTERNATIVE
>  	default y
>  	select RISCV_DMA_NONCOHERENT
> +	select DMA_DIRECT_REMAP
>  	help
>  	   Adds support to dynamically detect the presence of the ZICBOM
>  	   extension (Cache Block Management Operations) and enable its
> -- 
> 2.39.2
> 

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)