From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark yao Subject: Re: [RFC 3/3] iommu: dma-iommu: use common implementation also on ARM architecture Date: Mon, 18 Apr 2016 10:20:46 +0800 Message-ID: <5714447E.2030400@rock-chips.com> References: <1455870164-25337-1-git-send-email-m.szyprowski@samsung.com> <1455870164-25337-4-git-send-email-m.szyprowski@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1455870164-25337-4-git-send-email-m.szyprowski@samsung.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Marek Szyprowski , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski , Russell King - ARM Linux , Arnd Bergmann , Bartlomiej Zolnierkiewicz , Catalin Marinas , Will Deacon , dri-devel@lists.freedesktop.org, Tomasz Figa , linaro-mm-sig@lists.linaro.org, Sakari Ailus , Laurent Pinchart , Robin Murphy List-Id: iommu@lists.linux-foundation.org T24gMjAxNuW5tDAy5pyIMTnml6UgMTY6MjIsIE1hcmVrIFN6eXByb3dza2kgd3JvdGU6Cj4gVGhp cyBwYXRjaCByZXBsYWNlcyBBUk0tc3BlY2lmaWMgSU9NTVUtYmFzZWQgRE1BLW1hcHBpbmcgaW1w bGVtZW50YXRpb24KPiB3aXRoIGdlbmVyaWMgSU9NTVUgRE1BLW1hcHBpbmcgY29kZSBzaGFyZWQg d2l0aCBBUk02NCBhcmNoaXRlY3R1cmUuIFRoZQo+IHNpZGUtZWZmZWN0IG9mIHRoaXMgY2hhbmdl IGlzIGEgc3dpdGNoIGZyb20gYml0bWFwLWJhc2VkIElPIGFkZHJlc3Mgc3BhY2UKPiBtYW5hZ2Vt ZW50IHRvIHRyZWUtYmFzZWQgY29kZS4gVGhlcmUgc2hvdWxkIGJlIG5vIGZ1bmN0aW9uYWwgY2hh bmdlcwo+IGZvciBkcml2ZXJzLCB3aGljaCByZWx5IG9uIGluaXRpYWxpemF0aW9uIGZyb20gZ2Vu ZXJpYyBhcmNoX3NldHVwX2RuYV9vcHMoKQo+IGludGVyZmFjZS4gQ29kZSwgd2hpY2ggdXNlZCBv bGQgYXJtX2lvbW11XyogZnVuY3Rpb25zIG11c3QgYmUgdXBkYXRlZCB0bwo+IG5ldyBpbnRlcmZh Y2UuCj4KPiBTaWduZWQtb2ZmLWJ5OiBNYXJlayBTenlwcm93c2tpPG0uc3p5cHJvd3NraUBzYW1z dW5nLmNvbT4KSU9NTVUgd29ya3MgZ29vZCBvbiBkcm0vcm9ja2NoaXAgQVJNNjQgcGxhdGZvcm0g d2l0aCB0aGlzIHBhdGNoLiBTbwoKVGVzdGVkLWJ5OiBNYXJrIFlhbyA8bWFyay55YW9Acm9jay1j aGlwcy5jb20+CgpUaGFua3MuCgotLSAK77ytYXJrIFlhbwoKCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRl dmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9t YWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 From: mark.yao@rock-chips.com (Mark yao) Date: Mon, 18 Apr 2016 10:20:46 +0800 Subject: [RFC 3/3] iommu: dma-iommu: use common implementation also on ARM architecture In-Reply-To: <1455870164-25337-4-git-send-email-m.szyprowski@samsung.com> References: <1455870164-25337-1-git-send-email-m.szyprowski@samsung.com> <1455870164-25337-4-git-send-email-m.szyprowski@samsung.com> Message-ID: <5714447E.2030400@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 2016?02?19? 16:22, Marek Szyprowski wrote: > This patch replaces ARM-specific IOMMU-based DMA-mapping implementation > with generic IOMMU DMA-mapping code shared with ARM64 architecture. The > side-effect of this change is a switch from bitmap-based IO address space > management to tree-based code. There should be no functional changes > for drivers, which rely on initialization from generic arch_setup_dna_ops() > interface. Code, which used old arm_iommu_* functions must be updated to > new interface. > > Signed-off-by: Marek Szyprowski IOMMU works good on drm/rockchip ARM64 platform with this patch. So Tested-by: Mark Yao Thanks. -- ?ark Yao From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751644AbcDRCVL (ORCPT ); Sun, 17 Apr 2016 22:21:11 -0400 Received: from regular1.263xmail.com ([211.150.99.135]:39772 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751475AbcDRCVK (ORCPT ); Sun, 17 Apr 2016 22:21:10 -0400 X-263anti-spam: BIG:0;ABS:1;DNS:0;ATT:0;SPF:S;KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ABS-CHECKED: 1 X-SKE-CHECKED: 1 X-ADDR-CHECKED: 0 X-KSVirus-check: 0 X-RL-SENDER: mark.yao@rock-chips.com X-FST-TO: k.kozlowski@samsung.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: mark.yao@rock-chips.com X-UNIQUE-TAG: <0f3a9b8b6f265d5d40d29566b05b5808> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 Message-ID: <5714447E.2030400@rock-chips.com> Date: Mon, 18 Apr 2016 10:20:46 +0800 From: Mark yao User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: Marek Szyprowski , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org CC: linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, Arnd Bergmann , Will Deacon , Catalin Marinas , Robin Murphy , Russell King - ARM Linux , Joerg Roedel , Laurent Pinchart , Sakari Ailus , Heiko Stuebner , Tomasz Figa , Inki Dae , Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski Subject: Re: [RFC 3/3] iommu: dma-iommu: use common implementation also on ARM architecture References: <1455870164-25337-1-git-send-email-m.szyprowski@samsung.com> <1455870164-25337-4-git-send-email-m.szyprowski@samsung.com> In-Reply-To: <1455870164-25337-4-git-send-email-m.szyprowski@samsung.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2016年02月19日 16:22, Marek Szyprowski wrote: > This patch replaces ARM-specific IOMMU-based DMA-mapping implementation > with generic IOMMU DMA-mapping code shared with ARM64 architecture. The > side-effect of this change is a switch from bitmap-based IO address space > management to tree-based code. There should be no functional changes > for drivers, which rely on initialization from generic arch_setup_dna_ops() > interface. Code, which used old arm_iommu_* functions must be updated to > new interface. > > Signed-off-by: Marek Szyprowski IOMMU works good on drm/rockchip ARM64 platform with this patch. So Tested-by: Mark Yao Thanks. -- Ｍark Yao