From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksandr Andrushchenko Subject: Re: [Xen-devel] [PATCH hmm 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER Date: Mon, 28 Oct 2019 08:25:19 +0200 Message-ID: <3a53baa5-bc1d-e901-2792-8d51753391ff@gmail.com> References: <20191015181242.8343-1-jgg@ziepe.ca> <20191015181242.8343-9-jgg@ziepe.ca> <6f60f558-20db-1749-044d-a46697258c39@suse.com> <91329d7d-9db5-057e-59d2-887254083da0@epam.com> <20191021191219.GJ6285@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20191021191219.GJ6285-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: Jason Gunthorpe , Oleksandr Andrushchenko , =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= , Boris Ostrovsky Cc: Andrea Arcangeli , Ralph Campbell , Stefano Stabellini , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , John Hubbard , "Felix.Kuehling-5C7GfCeVMHo@public.gmane.org" , "amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org" , Jerome Glisse , "dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "xen-devel-GuqFBffKawtpuQazS67q72D2FQJk+8+b@public.gmane.org" , Ben Skeggs List-Id: dri-devel@lists.freedesktop.org T24gMTAvMjEvMTkgMTA6MTIgUE0sIEphc29uIEd1bnRob3JwZSB3cm90ZToKPiBPbiBXZWQsIE9j dCAxNiwgMjAxOSBhdCAwNjozNToxNUFNICswMDAwLCBPbGVrc2FuZHIgQW5kcnVzaGNoZW5rbyB3 cm90ZToKPj4gT24gMTAvMTYvMTkgODoxMSBBTSwgSsO8cmdlbiBHcm/DnyB3cm90ZToKPj4+IE9u IDE1LjEwLjE5IDIwOjEyLCBKYXNvbiBHdW50aG9ycGUgd3JvdGU6Cj4+Pj4gRnJvbTogSmFzb24g R3VudGhvcnBlIDxqZ2dAbWVsbGFub3guY29tPgo+Pj4+Cj4+Pj4gRE1BX1NIQVJFRF9CVUZGRVIg Y2FuIG5vdCBiZSBlbmFibGVkIGJ5IHRoZSB1c2VyIChpdCByZXByZXNlbnRzIGEKPj4+PiBsaWJy YXJ5Cj4+Pj4gc2V0IGluIHRoZSBrZXJuZWwpLiBUaGUga2NvbmZpZyBjb252ZW50aW9uIGlzIHRv IHVzZSBzZWxlY3QgZm9yIHN1Y2gKPj4+PiBzeW1ib2xzIHNvIHRoZXkgYXJlIHR1cm5lZCBvbiBp bXBsaWNpdGx5IHdoZW4gdGhlIHVzZXIgZW5hYmxlcyBhIGtjb25maWcKPj4+PiB0aGF0IG5lZWRz IHRoZW0uCj4+Pj4KPj4+PiBPdGhlcndpc2UgdGhlIFhFTl9HTlRERVZfRE1BQlVGIGtjb25maWcg aXMgb3Zlcmx5IGRpZmZpY3VsdCB0byBlbmFibGUuCj4+Pj4KPj4+PiBGaXhlczogOTMyZDY1NjIx NzllICgieGVuL2dudGRldjogQWRkIGluaXRpYWwgc3VwcG9ydCBmb3IgZG1hLWJ1ZiBVQVBJIikK Pj4+PiBDYzogT2xla3NhbmRyIEFuZHJ1c2hjaGVua28gPG9sZWtzYW5kcl9hbmRydXNoY2hlbmtv QGVwYW0uY29tPgo+Pj4+IENjOiBCb3JpcyBPc3Ryb3Zza3kgPGJvcmlzLm9zdHJvdnNreUBvcmFj bGUuY29tPgo+Pj4+IENjOiB4ZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKPj4+PiBDYzog SnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1c2UuY29tPgo+Pj4+IENjOiBTdGVmYW5vIFN0YWJlbGxp bmkgPHNzdGFiZWxsaW5pQGtlcm5lbC5vcmc+Cj4+Pj4gU2lnbmVkLW9mZi1ieTogSmFzb24gR3Vu dGhvcnBlIDxqZ2dAbWVsbGFub3guY29tPgo+Pj4gUmV2aWV3ZWQtYnk6IEp1ZXJnZW4gR3Jvc3Mg PGpncm9zc0BzdXNlLmNvbT4KPj4+Cj4+IFJldmlld2VkLWJ5OiBPbGVrc2FuZHIgQW5kcnVzaGNo ZW5rbyA8b2xla3NhbmRyX2FuZHJ1c2hjaGVua29AZXBhbS5jb20+Cj4gVGhhbmtzIE9sZWtzYW5k ciBhbmQgSnVlcmdlbiwgY2FuIHlvdSBhbHNvIGdpdmUgbWUgc29tZSBhZHZpY2Ugb24gaG93Cj4g dG8gcHJvZ3Jlc3MgdGhlIG1vcmUgY29tcGxleCBwYXRjaDoKPgo+IGh0dHBzOi8vcGF0Y2h3b3Jr Lmtlcm5lbC5vcmcvcGF0Y2gvMTExOTEzNjkvCj4KPiBJcyB0aGlzIGdudGRldiBzdHVmZiBzdGls bCBpbi11c2U/IEkgc3RydWdnbGVkIGEgYml0IHRvIHVuZGVyc3RhbmQKPiB3aGF0IGl0IGlzIGRv aW5nLCBidXQgSSB0aGluayBJIG1hZGUgYSByZWFzb25hYmxlIGd1ZXNzPwpJIHRoaW5rIEp1cmdl biBhbmQgQm9yaXMgY291bGQgaGVscCBoZXJlCj4gSmFzb24KPiBfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IFhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKPiBY ZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKPiBodHRwczovL2xpc3RzLnhlbnByb2plY3Qu b3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVsCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwphbWQtZ2Z4IG1haWxpbmcgbGlzdAphbWQtZ2Z4QGxpc3Rz LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2FtZC1nZng= 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=-5.0 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 1530ECA9EA0 for ; 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[85.223.141.74]) by smtp.gmail.com with ESMTPSA id u11sm1583705ljo.17.2019.10.27.23.25.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 27 Oct 2019 23:25:20 -0700 (PDT) Subject: Re: [Xen-devel] [PATCH hmm 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER To: Jason Gunthorpe , Oleksandr Andrushchenko , =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= , Boris Ostrovsky References: <20191015181242.8343-1-jgg@ziepe.ca> <20191015181242.8343-9-jgg@ziepe.ca> <6f60f558-20db-1749-044d-a46697258c39@suse.com> <91329d7d-9db5-057e-59d2-887254083da0@epam.com> <20191021191219.GJ6285@mellanox.com> From: Oleksandr Andrushchenko Message-ID: <3a53baa5-bc1d-e901-2792-8d51753391ff@gmail.com> Date: Mon, 28 Oct 2019 08:25:19 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191021191219.GJ6285@mellanox.com> Content-Language: en-US X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=U5RAXoFel6JiFEul8P59gVQ3AePT+MtgQnCRwa3TQX4=; b=Z1HmAxnfzdn9FoQZf+DyMDvMHJwLLsWJJUbPsWqENApbZymOmVxPjl1lOC4ePEDbeB U/S7eBT811AEPMeNkzgnKZ7Nlyr9+Thkld05BkFnmTBLG5VMJ+lMdrPfv96tMSDun4zD gduvO7L+Cozwk5XGL69xPZUzEZrkTh22aOqqX7gweGuFhisM9k/4NDzSIQf0Qxhj1QBz ibZfwCVSnyC5pAf/VxQ19qnGlIkLcjiBWCpW/usyvrtjaUFK2qCWpM2u3B76N8ABYRDC kiBhgF+AeBONyDxDgTxRYZfIUiHOEvvl0mq4LArLAT23Vp2jDCzAD49x09Z9fGC3pCkc J2VQ== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrea Arcangeli , Ralph Campbell , Stefano Stabellini , "linux-rdma@vger.kernel.org" , John Hubbard , "Felix.Kuehling@amd.com" , "amd-gfx@lists.freedesktop.org" , "linux-mm@kvack.org" , Jerome Glisse , "dri-devel@lists.freedesktop.org" , "xen-devel@lists.xenproject.org" , Ben Skeggs Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Message-ID: <20191028062519.Rlfd9HcqhIMPyikOyt0J4hhu0bxkV3loJA7HYQ-oFBE@z> T24gMTAvMjEvMTkgMTA6MTIgUE0sIEphc29uIEd1bnRob3JwZSB3cm90ZToKPiBPbiBXZWQsIE9j dCAxNiwgMjAxOSBhdCAwNjozNToxNUFNICswMDAwLCBPbGVrc2FuZHIgQW5kcnVzaGNoZW5rbyB3 cm90ZToKPj4gT24gMTAvMTYvMTkgODoxMSBBTSwgSsO8cmdlbiBHcm/DnyB3cm90ZToKPj4+IE9u IDE1LjEwLjE5IDIwOjEyLCBKYXNvbiBHdW50aG9ycGUgd3JvdGU6Cj4+Pj4gRnJvbTogSmFzb24g R3VudGhvcnBlIDxqZ2dAbWVsbGFub3guY29tPgo+Pj4+Cj4+Pj4gRE1BX1NIQVJFRF9CVUZGRVIg Y2FuIG5vdCBiZSBlbmFibGVkIGJ5IHRoZSB1c2VyIChpdCByZXByZXNlbnRzIGEKPj4+PiBsaWJy YXJ5Cj4+Pj4gc2V0IGluIHRoZSBrZXJuZWwpLiBUaGUga2NvbmZpZyBjb252ZW50aW9uIGlzIHRv IHVzZSBzZWxlY3QgZm9yIHN1Y2gKPj4+PiBzeW1ib2xzIHNvIHRoZXkgYXJlIHR1cm5lZCBvbiBp bXBsaWNpdGx5IHdoZW4gdGhlIHVzZXIgZW5hYmxlcyBhIGtjb25maWcKPj4+PiB0aGF0IG5lZWRz IHRoZW0uCj4+Pj4KPj4+PiBPdGhlcndpc2UgdGhlIFhFTl9HTlRERVZfRE1BQlVGIGtjb25maWcg aXMgb3Zlcmx5IGRpZmZpY3VsdCB0byBlbmFibGUuCj4+Pj4KPj4+PiBGaXhlczogOTMyZDY1NjIx NzllICgieGVuL2dudGRldjogQWRkIGluaXRpYWwgc3VwcG9ydCBmb3IgZG1hLWJ1ZiBVQVBJIikK Pj4+PiBDYzogT2xla3NhbmRyIEFuZHJ1c2hjaGVua28gPG9sZWtzYW5kcl9hbmRydXNoY2hlbmtv QGVwYW0uY29tPgo+Pj4+IENjOiBCb3JpcyBPc3Ryb3Zza3kgPGJvcmlzLm9zdHJvdnNreUBvcmFj bGUuY29tPgo+Pj4+IENjOiB4ZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKPj4+PiBDYzog SnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1c2UuY29tPgo+Pj4+IENjOiBTdGVmYW5vIFN0YWJlbGxp bmkgPHNzdGFiZWxsaW5pQGtlcm5lbC5vcmc+Cj4+Pj4gU2lnbmVkLW9mZi1ieTogSmFzb24gR3Vu dGhvcnBlIDxqZ2dAbWVsbGFub3guY29tPgo+Pj4gUmV2aWV3ZWQtYnk6IEp1ZXJnZW4gR3Jvc3Mg PGpncm9zc0BzdXNlLmNvbT4KPj4+Cj4+IFJldmlld2VkLWJ5OiBPbGVrc2FuZHIgQW5kcnVzaGNo ZW5rbyA8b2xla3NhbmRyX2FuZHJ1c2hjaGVua29AZXBhbS5jb20+Cj4gVGhhbmtzIE9sZWtzYW5k ciBhbmQgSnVlcmdlbiwgY2FuIHlvdSBhbHNvIGdpdmUgbWUgc29tZSBhZHZpY2Ugb24gaG93Cj4g dG8gcHJvZ3Jlc3MgdGhlIG1vcmUgY29tcGxleCBwYXRjaDoKPgo+IGh0dHBzOi8vcGF0Y2h3b3Jr Lmtlcm5lbC5vcmcvcGF0Y2gvMTExOTEzNjkvCj4KPiBJcyB0aGlzIGdudGRldiBzdHVmZiBzdGls bCBpbi11c2U/IEkgc3RydWdnbGVkIGEgYml0IHRvIHVuZGVyc3RhbmQKPiB3aGF0IGl0IGlzIGRv aW5nLCBidXQgSSB0aGluayBJIG1hZGUgYSByZWFzb25hYmxlIGd1ZXNzPwpJIHRoaW5rIEp1cmdl biBhbmQgQm9yaXMgY291bGQgaGVscCBoZXJlCj4gSmFzb24KPiBfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IFhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKPiBY ZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKPiBodHRwczovL2xpc3RzLnhlbnByb2plY3Qu b3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVsCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1h bi9saXN0aW5mby9kcmktZGV2ZWw=