From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jordan Crouse Subject: [PATCH 01/14] iommu: Add DOMAIN_ATTR_ENABLE_TTBR1 Date: Wed, 21 Feb 2018 15:59:11 -0700 Message-ID: <20180221225924.30737-2-jcrouse@codeaurora.org> References: <20180221225924.30737-1-jcrouse@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180221225924.30737-1-jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-arm-msm@vger.kernel.org Add a new domain attribute to enable the TTBR1 pagetable for drivers and devices that support it. This will enabled using a TTBR1 (otherwise known as a "global" or "system" pagetable for devices that support a split pagetable scheme for switching pagetables quickly and safely. Signed-off-by: Jordan Crouse --- include/linux/iommu.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 641aaf0f1b81..e2c49e583d8d 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -153,6 +153,7 @@ enum iommu_attr { DOMAIN_ATTR_FSL_PAMU_ENABLE, DOMAIN_ATTR_FSL_PAMUV1, DOMAIN_ATTR_NESTING, /* two stages of translation */ + DOMAIN_ATTR_ENABLE_TTBR1, DOMAIN_ATTR_MAX, }; -- 2.16.1