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Date: Thu, 25 May 2023 15:59:31 +0200
From: Christoph Hellwig <hch@lst.de>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Christoph Hellwig <hch@lst.de>, Robin Murphy <robin.murphy@arm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Ard Biesheuvel <ardb@kernel.org>,
	Isaac Manjarres <isaacmanjarres@google.com>,
	Saravana Kannan <saravanak@google.com>,
	Alasdair Kergon <agk@redhat.com>, Daniel Vetter <daniel@ffwll.ch>,
	Joerg Roedel <joro@8bytes.org>, Mark Brown <broonie@kernel.org>,
	Mike Snitzer <snitzer@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>, linux-mm@kvack.org,
	iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 02/15] dma: Allow dma_get_cache_alignment() to be
 overridden by the arch code
Message-ID: <20230525135931.GA15012@lst.de>
References: <20230524171904.3967031-1-catalin.marinas@arm.com> <20230524171904.3967031-3-catalin.marinas@arm.com>
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In-Reply-To: <20230524171904.3967031-3-catalin.marinas@arm.com>
User-Agent: Mutt/1.5.17 (2007-11-01)

On Wed, May 24, 2023 at 06:18:51PM +0100, Catalin Marinas wrote:
> On arm64, ARCH_DMA_MINALIGN is larger than most cache line size
> configurations deployed. Allow an architecture to override
> dma_get_cache_alignment() in order to return a run-time probed value
> (e.g. cache_line_size()).
> 
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: Robin Murphy <robin.murphy@arm.com>
> Cc: Will Deacon <will@kernel.org>

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>