linux-kernel - Re: [PATCH] ARM: tegra: Select appropriate DMA options for LPAE

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Date:   Tue, 04 Jul 2017 17:29:05 +0300
From:   Paul Kocialkowski <contact@...lk.fr>
To:     linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Russell King <linux@...linux.org.uk>,
        Stephen Warren <swarren@...dotorg.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Alexandre Courbot <gnurou@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Olof Johansson <olof@...om.net>
Subject: Re: [PATCH] ARM: tegra: Select appropriate DMA options for LPAE

On Tue, 2017-04-25 at 00:59 +0200, Paul Kocialkowski wrote:
> This automatically selects options for zone DMA and 64 bit DMA addresses
> when LPAE is enabled on ARM Tegra platforms. These options are required
> for proper operation with LPAE enabled.

Bumping this one since it did not get any review yet.

It should be a good candidate for inclusion now that the merge window is open.

> Signed-off-by: Paul Kocialkowski <contact@...lk.fr>
> ---
>  arch/arm/mach-tegra/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
> index 329f01c5b6f8..c8368d647741 100644
> --- a/arch/arm/mach-tegra/Kconfig
> +++ b/arch/arm/mach-tegra/Kconfig
> @@ -13,5 +13,7 @@ menuconfig ARCH_TEGRA
>  	select ARCH_HAS_RESET_CONTROLLER
>  	select RESET_CONTROLLER
>  	select SOC_BUS
> +	select ZONE_DMA if ARM_LPAE
> +	select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
>  	help
>  	  This enables support for NVIDIA Tegra based systems.
-- 
Paul Kocialkowski, developer of free digital technology and hardware support

Website: https://www.paulk.fr/
Coding blog: https://code.paulk.fr/
Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/