From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933320AbaHEK4m (ORCPT ); Tue, 5 Aug 2014 06:56:42 -0400 Received: from mailout3.w1.samsung.com ([210.118.77.13]:18304 "EHLO mailout3.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754727AbaHEKs7 (ORCPT ); Tue, 5 Aug 2014 06:48:59 -0400 X-AuditID: cbfec7f5-b7f776d000003e54-90-53e0b699a8da From: Marek Szyprowski To: iommu@lists.linux-foundation.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Marek Szyprowski , linaro-mm-sig@lists.linaro.org, Arnd Bergmann , Shaik Ameer Basha , Cho KyongHo , Joerg Roedel , Thierry Reding , Olof Johansson , Laurent Pinchart , Rob Herring , Greg Kroah-Hartman , "Rafael J. Wysocki" , Inki Dae , Kukjin Kim , Sylwester Nawrocki , Tomasz Figa , Kyungmin Park Subject: [PATCH 10/29] drivers: add DRIVER_HAS_OWN_IOMMU_MANAGER flag Date: Tue, 05 Aug 2014 12:47:38 +0200 Message-id: <1407235677-26324-11-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.9.2 In-reply-to: <1407235677-26324-1-git-send-email-m.szyprowski@samsung.com> References: <1407235677-26324-1-git-send-email-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrBLMWRmVeSWpSXmKPExsVy+t/xq7oztz0INliyTM3i76Rj7BbNi9ez WUy6P4HFYsF+a4vO2RvYLXoXXGWzONv0ht2ic+ISdosvVx4yWWx6fI3V4vKuOWwWM87vY7JY e+Quu8Wp65/ZLP71HmS0OHP6EqvF/z072C0Ov2lntTjycDe7xapdfxgtbv/mcxD1eHJwHpPH 71+TGD12zrrL7jG7Yyarx6ZVnWwe++euYffYvKTe4/a/x8wek28sZ/S4cqKJ1aO3+R2bx5ar 7SwefVtWMXp83iQXwBfFZZOSmpNZllqkb5fAlXH4VxtrQQ97xapVt1kaGH+wdjFyckgImEg8 ePaLDcIWk7hwbz2QzcUhJLCUUeLL815mCKePSWLvlN9MIFVsAoYSXW+7wKpEBHoZJfqbfjCB OMwC61gl9vdeZwGpEhZwldh3bQfYDhYBVYmZn3+CxXkFPCVW/5kJtVtO4v/LFWBTOYHih28e AIsLCXhI/Nywhn0CI+8CRoZVjKKppckFxUnpuUZ6xYm5xaV56XrJ+bmbGCGx83UH49JjVocY BTgYlXh4FfbeDRZiTSwrrsw9xCjBwawkwiux5kGwEG9KYmVValF+fFFpTmrxIUYmDk6pBkar +QKzmXvf2Syd5VK0zbBDaJFApsTrF5vWi0v1N3FVNBfolWtPY2J8ffNxH5voyatb922SniC2 8lzFm79ZwjWcP3z+arOlfhTmYeA8w7rHVejr7eRVE2pZM1dFdkXnFfx/8WjK1Zowm4nRz+rV rq84ZCydJfhh8Y5jbKG3uEL3ecw0vswv567EUpyRaKjFXFScCABCxS9NewIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds a new flags for device drivers. This flag instructs kernel that the device driver does it own management of IOMMU assisted IO address space translations, so no default dma-mapping structures should be initialized. Signed-off-by: Marek Szyprowski --- include/linux/device.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/device.h b/include/linux/device.h index 5f4ff02..2e62371 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -253,6 +253,8 @@ struct device_driver { /* disables bind/unbind via sysfs */ #define DRIVER_SUPPRESS_BIND_ATTRS (1 << 0) +/* driver uses own methods to manage IO address space */ +#define DRIVER_HAS_OWN_IOMMU_MANAGER (1 << 1) extern int __must_check driver_register(struct device_driver *drv); extern void driver_unregister(struct device_driver *drv); -- 1.9.2