From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14B50ECE58E for ; Wed, 16 Oct 2019 05:11:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DE4812054F for ; Wed, 16 Oct 2019 05:11:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730411AbfJPFLJ (ORCPT ); Wed, 16 Oct 2019 01:11:09 -0400 Received: from mx2.suse.de ([195.135.220.15]:50402 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1732659AbfJPFLI (ORCPT ); Wed, 16 Oct 2019 01:11:08 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C1428B38A; Wed, 16 Oct 2019 05:11:06 +0000 (UTC) Subject: Re: [PATCH hmm 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER To: Jason Gunthorpe , Felix.Kuehling@amd.com, John Hubbard , Ralph Campbell , Jerome Glisse Cc: Oleksandr Andrushchenko , Stefano Stabellini , linux-mm@kvack.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, xen-devel@lists.xenproject.org, Jason Gunthorpe , Boris Ostrovsky , Andrea Arcangeli , Ben Skeggs , linux-rdma@vger.kernel.org References: <20191015181242.8343-1-jgg@ziepe.ca> <20191015181242.8343-9-jgg@ziepe.ca> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <6f60f558-20db-1749-044d-a46697258c39@suse.com> Date: Wed, 16 Oct 2019 07:11:03 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191015181242.8343-9-jgg@ziepe.ca> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On 15.10.19 20:12, Jason Gunthorpe wrote: > From: Jason Gunthorpe > > DMA_SHARED_BUFFER can not be enabled by the user (it represents a library > set in the kernel). The kconfig convention is to use select for such > symbols so they are turned on implicitly when the user enables a kconfig > that needs them. > > Otherwise the XEN_GNTDEV_DMABUF kconfig is overly difficult to enable. > > Fixes: 932d6562179e ("xen/gntdev: Add initial support for dma-buf UAPI") > Cc: Oleksandr Andrushchenko > Cc: Boris Ostrovsky > Cc: xen-devel@lists.xenproject.org > Cc: Juergen Gross > Cc: Stefano Stabellini > Signed-off-by: Jason Gunthorpe Reviewed-by: Juergen Gross Juergen From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Subject: Re: [PATCH hmm 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER Date: Wed, 16 Oct 2019 07:11:03 +0200 Message-ID: <6f60f558-20db-1749-044d-a46697258c39@suse.com> References: <20191015181242.8343-1-jgg@ziepe.ca> <20191015181242.8343-9-jgg@ziepe.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20191015181242.8343-9-jgg@ziepe.ca> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jason Gunthorpe , Felix.Kuehling@amd.com, John Hubbard , Ralph Campbell , Jerome Glisse Cc: Andrea Arcangeli , Stefano Stabellini , Oleksandr Andrushchenko , linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, Jason Gunthorpe , amd-gfx@lists.freedesktop.org, xen-devel@lists.xenproject.org, Boris Ostrovsky , Ben Skeggs List-Id: dri-devel@lists.freedesktop.org T24gMTUuMTAuMTkgMjA6MTIsIEphc29uIEd1bnRob3JwZSB3cm90ZToKPiBGcm9tOiBKYXNvbiBH dW50aG9ycGUgPGpnZ0BtZWxsYW5veC5jb20+Cj4gCj4gRE1BX1NIQVJFRF9CVUZGRVIgY2FuIG5v dCBiZSBlbmFibGVkIGJ5IHRoZSB1c2VyIChpdCByZXByZXNlbnRzIGEgbGlicmFyeQo+IHNldCBp biB0aGUga2VybmVsKS4gVGhlIGtjb25maWcgY29udmVudGlvbiBpcyB0byB1c2Ugc2VsZWN0IGZv ciBzdWNoCj4gc3ltYm9scyBzbyB0aGV5IGFyZSB0dXJuZWQgb24gaW1wbGljaXRseSB3aGVuIHRo ZSB1c2VyIGVuYWJsZXMgYSBrY29uZmlnCj4gdGhhdCBuZWVkcyB0aGVtLgo+IAo+IE90aGVyd2lz ZSB0aGUgWEVOX0dOVERFVl9ETUFCVUYga2NvbmZpZyBpcyBvdmVybHkgZGlmZmljdWx0IHRvIGVu YWJsZS4KPiAKPiBGaXhlczogOTMyZDY1NjIxNzllICgieGVuL2dudGRldjogQWRkIGluaXRpYWwg c3VwcG9ydCBmb3IgZG1hLWJ1ZiBVQVBJIikKPiBDYzogT2xla3NhbmRyIEFuZHJ1c2hjaGVua28g PG9sZWtzYW5kcl9hbmRydXNoY2hlbmtvQGVwYW0uY29tPgo+IENjOiBCb3JpcyBPc3Ryb3Zza3kg PGJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tPgo+IENjOiB4ZW4tZGV2ZWxAbGlzdHMueGVucHJv amVjdC5vcmcKPiBDYzogSnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1c2UuY29tPgo+IENjOiBTdGVm YW5vIFN0YWJlbGxpbmkgPHNzdGFiZWxsaW5pQGtlcm5lbC5vcmc+Cj4gU2lnbmVkLW9mZi1ieTog SmFzb24gR3VudGhvcnBlIDxqZ2dAbWVsbGFub3guY29tPgoKUmV2aWV3ZWQtYnk6IEp1ZXJnZW4g R3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4KCgpKdWVyZ2VuCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZl bEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxt YW4vbGlzdGluZm8veGVuLWRldmVs From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0817ECE58E for ; 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Wed, 16 Oct 2019 05:11:07 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C1428B38A; Wed, 16 Oct 2019 05:11:06 +0000 (UTC) To: Jason Gunthorpe , Felix.Kuehling@amd.com, John Hubbard , Ralph Campbell , Jerome Glisse References: <20191015181242.8343-1-jgg@ziepe.ca> <20191015181242.8343-9-jgg@ziepe.ca> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <6f60f558-20db-1749-044d-a46697258c39@suse.com> Date: Wed, 16 Oct 2019 07:11:03 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191015181242.8343-9-jgg@ziepe.ca> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH hmm 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrea Arcangeli , Stefano Stabellini , Oleksandr Andrushchenko , linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, Jason Gunthorpe , amd-gfx@lists.freedesktop.org, xen-devel@lists.xenproject.org, Boris Ostrovsky , Ben Skeggs Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMTUuMTAuMTkgMjA6MTIsIEphc29uIEd1bnRob3JwZSB3cm90ZToKPiBGcm9tOiBKYXNvbiBH dW50aG9ycGUgPGpnZ0BtZWxsYW5veC5jb20+Cj4gCj4gRE1BX1NIQVJFRF9CVUZGRVIgY2FuIG5v dCBiZSBlbmFibGVkIGJ5IHRoZSB1c2VyIChpdCByZXByZXNlbnRzIGEgbGlicmFyeQo+IHNldCBp biB0aGUga2VybmVsKS4gVGhlIGtjb25maWcgY29udmVudGlvbiBpcyB0byB1c2Ugc2VsZWN0IGZv ciBzdWNoCj4gc3ltYm9scyBzbyB0aGV5IGFyZSB0dXJuZWQgb24gaW1wbGljaXRseSB3aGVuIHRo ZSB1c2VyIGVuYWJsZXMgYSBrY29uZmlnCj4gdGhhdCBuZWVkcyB0aGVtLgo+IAo+IE90aGVyd2lz ZSB0aGUgWEVOX0dOVERFVl9ETUFCVUYga2NvbmZpZyBpcyBvdmVybHkgZGlmZmljdWx0IHRvIGVu YWJsZS4KPiAKPiBGaXhlczogOTMyZDY1NjIxNzllICgieGVuL2dudGRldjogQWRkIGluaXRpYWwg c3VwcG9ydCBmb3IgZG1hLWJ1ZiBVQVBJIikKPiBDYzogT2xla3NhbmRyIEFuZHJ1c2hjaGVua28g PG9sZWtzYW5kcl9hbmRydXNoY2hlbmtvQGVwYW0uY29tPgo+IENjOiBCb3JpcyBPc3Ryb3Zza3kg PGJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tPgo+IENjOiB4ZW4tZGV2ZWxAbGlzdHMueGVucHJv amVjdC5vcmcKPiBDYzogSnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1c2UuY29tPgo+IENjOiBTdGVm YW5vIFN0YWJlbGxpbmkgPHNzdGFiZWxsaW5pQGtlcm5lbC5vcmc+Cj4gU2lnbmVkLW9mZi1ieTog SmFzb24gR3VudGhvcnBlIDxqZ2dAbWVsbGFub3guY29tPgoKUmV2aWV3ZWQtYnk6IEp1ZXJnZW4g R3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4KCgpKdWVyZ2VuCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZl bEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxt YW4vbGlzdGluZm8veGVuLWRldmVs