Re: [PATCH 3/4] riscv: Remove MMU dependency from Zbb and Zicboz

From: Conor Dooley <conor.dooley@microchip.com>
To: Samuel Holland <samuel.holland@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
	<linux-riscv@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/4] riscv: Remove MMU dependency from Zbb and Zicboz
Date: Tue, 27 Feb 2024 11:51:58 +0000	[thread overview]
Message-ID: <20240227-bonehead-stonework-d56052265b35@wendy> (raw)
In-Reply-To: <20240227003630.3634533-4-samuel.holland@sifive.com>

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On Mon, Feb 26, 2024 at 04:34:48PM -0800, Samuel Holland wrote:
> The Zbb and Zicboz ISA extensions have no dependency on an MMU and are
> equally useful on NOMMU kernels.
> 
> Signed-off-by: Samuel Holland <samuel.holland@sifive.com>

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

Cheers,
Conor.

> ---
> 
>  arch/riscv/Kconfig | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index bffbd869a068..ef53c00470d6 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -581,7 +581,6 @@ config TOOLCHAIN_HAS_ZBB
>  config RISCV_ISA_ZBB
>  	bool "Zbb extension support for bit manipulation instructions"
>  	depends on TOOLCHAIN_HAS_ZBB
> -	depends on MMU
>  	depends on RISCV_ALTERNATIVE
>  	default y
>  	help
> @@ -613,7 +612,6 @@ config RISCV_ISA_ZICBOM
>  
>  config RISCV_ISA_ZICBOZ
>  	bool "Zicboz extension support for faster zeroing of memory"
> -	depends on MMU
>  	depends on RISCV_ALTERNATIVE
>  	default y
>  	help
> -- 
> 2.43.0
> 

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