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Fri, 30 Jul 2021 06:09:29 +0000 Received: from mga03.intel.com ([134.134.136.65]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m9Li1-007NrD-Bc for linux-arm-kernel@lists.infradead.org; Fri, 30 Jul 2021 06:09:26 +0000 X-IronPort-AV: E=McAfee;i="6200,9189,10060"; a="213070027" X-IronPort-AV: E=Sophos;i="5.84,281,1620716400"; d="scan'208";a="213070027" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2021 23:09:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,281,1620716400"; d="scan'208";a="465344760" Received: from allen-box.sh.intel.com (HELO [10.239.159.118]) ([10.239.159.118]) by orsmga008.jf.intel.com with ESMTP; 29 Jul 2021 23:09:20 -0700 Cc: baolu.lu@linux.intel.com, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, suravee.suthikulpanit@amd.com, john.garry@huawei.com, dianders@chromium.org Subject: Re: [PATCH v2 04/24] iommu/vt-d: Drop IOVA cookie management To: Robin Murphy , joro@8bytes.org, will@kernel.org References: <6630ae3191be428135a7269c15b17d03c90573c1.1627468309.git.robin.murphy@arm.com> From: Lu Baolu Message-ID: <1cc3a65c-15b6-f971-3ea3-668ebb0b20f5@linux.intel.com> Date: Fri, 30 Jul 2021 14:07:02 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <6630ae3191be428135a7269c15b17d03c90573c1.1627468309.git.robin.murphy@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210729_230925_497767_77A3843A X-CRM114-Status: GOOD ( 17.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 7/28/21 11:58 PM, Robin Murphy wrote: > The core code bakes its own cookies now. > > Signed-off-by: Robin Murphy > --- > drivers/iommu/intel/iommu.c | 8 -------- > 1 file changed, 8 deletions(-) > > diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c > index c12cc955389a..7e168634c433 100644 > --- a/drivers/iommu/intel/iommu.c > +++ b/drivers/iommu/intel/iommu.c > @@ -1979,10 +1979,6 @@ static void domain_exit(struct dmar_domain *domain) > /* Remove associated devices and clear attached or cached domains */ > domain_remove_dev_info(domain); > > - /* destroy iovas */ > - if (domain->domain.type == IOMMU_DOMAIN_DMA) > - iommu_put_dma_cookie(&domain->domain); > - > if (domain->pgd) { > struct page *freelist; > > @@ -4544,10 +4540,6 @@ static struct iommu_domain *intel_iommu_domain_alloc(unsigned type) > return NULL; > } > > - if (type == IOMMU_DOMAIN_DMA && > - iommu_get_dma_cookie(&dmar_domain->domain)) > - return NULL; > - > domain = &dmar_domain->domain; > domain->geometry.aperture_start = 0; > domain->geometry.aperture_end = > Reviewed-by: Lu Baolu Best regards, baolu _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel