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Wed, 6 Jan 2021 07:50:10 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sDHdBp+jG8PN for ; Wed, 6 Jan 2021 07:50:08 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by silver.osuosl.org (Postfix) with ESMTPS id 343CA20370 for ; Wed, 6 Jan 2021 07:50:08 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 7129D2070C; Wed, 6 Jan 2021 07:50:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609919407; bh=Piu5gusr/UGLicaCqANy6GNdwM1M9LXLgq30KLvh2D4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=STtQBirTvMJHJfy3BDpBJr1nF4y3j9P09tA52QukFa2+zVDJOvZxlpH0YuQb1dKaI tkZ/1YHajtxpOZBb2tYYK9x5sW39V1FMN5v9MY2fd4frFWPosjKHysaj5P3pqOj5H4 cLt1ndn2T4gOT+l7NViKlEBYi94u2sh/OTHke2vk= Date: Wed, 6 Jan 2021 08:50:03 +0100 From: Greg KH To: Claire Chang Subject: Re: [RFC PATCH v3 2/6] swiotlb: Add restricted DMA pool Message-ID: References: <20210106034124.30560-1-tientzu@chromium.org> <20210106034124.30560-3-tientzu@chromium.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210106034124.30560-3-tientzu@chromium.org> Cc: heikki.krogerus@linux.intel.com, peterz@infradead.org, benh@kernel.crashing.org, grant.likely@arm.com, paulus@samba.org, frowand.list@gmail.com, mingo@kernel.org, sstabellini@kernel.org, saravanak@google.com, mpe@ellerman.id.au, rafael.j.wysocki@intel.com, hch@lst.de, bgolaszewski@baylibre.com, xen-devel@lists.xenproject.org, treding@nvidia.com, devicetree@vger.kernel.org, will@kernel.org, konrad.wilk@oracle.com, dan.j.williams@intel.com, robh+dt@kernel.org, boris.ostrovsky@oracle.com, andriy.shevchenko@linux.intel.com, jgross@suse.com, drinkcat@chromium.org, linuxppc-dev@lists.ozlabs.org, rdunlap@infradead.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, xypron.glpk@gmx.de, robin.murphy@arm.com X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Wed, Jan 06, 2021 at 11:41:20AM +0800, Claire Chang wrote: > Add the initialization function to create restricted DMA pools from > matching reserved-memory nodes in the device tree. > > Signed-off-by: Claire Chang > --- > include/linux/device.h | 4 ++ > include/linux/swiotlb.h | 7 +- > kernel/dma/Kconfig | 1 + > kernel/dma/swiotlb.c | 144 ++++++++++++++++++++++++++++++++++------ > 4 files changed, 131 insertions(+), 25 deletions(-) > > diff --git a/include/linux/device.h b/include/linux/device.h > index 89bb8b84173e..ca6f71ec8871 100644 > --- a/include/linux/device.h > +++ b/include/linux/device.h > @@ -413,6 +413,7 @@ struct dev_links_info { > * @dma_pools: Dma pools (if dma'ble device). > * @dma_mem: Internal for coherent mem override. > * @cma_area: Contiguous memory area for dma allocations > + * @dma_io_tlb_mem: Internal for swiotlb io_tlb_mem override. Why does this have to be added here? Shouldn't the platform-specific code handle it instead? thanks, greg k-h _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu