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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0D70C43334 for ; Thu, 23 Jun 2022 08:14:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230001AbiFWIOC (ORCPT ); Thu, 23 Jun 2022 04:14:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229659AbiFWIN6 (ORCPT ); Thu, 23 Jun 2022 04:13:58 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CEC4B46CBB; Thu, 23 Jun 2022 01:13:57 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 8E3F31FB42; Thu, 23 Jun 2022 08:13:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1655972036; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=aVJweXdz9Jf/NVEgCyaFEqirlfoYOjh6Fl7CRM17eqg=; b=z/2fHE9Vhjo5lsBQhdQxp70kwGuZMxrAx7ktHeJzRtsjQo5A4AT8s4DuIcHqV18TGNjvz0 hjQziUU4dDLTSNjBW5fOjC4ccC9yH85cQPwouSx9D1N3nyBMTRg23sDZmvB9GpWZHrD+oW S/OxO1vj1ZMAdiyBLHkrvdqf1s4NoEI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1655972036; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=aVJweXdz9Jf/NVEgCyaFEqirlfoYOjh6Fl7CRM17eqg=; b=7bTonw3Op5mC3r47udV9QcuK6VoYhDhv5oOs19KKiY4dgdRxg8Q/P99SdPAZ/9d0zdxQFe gVGP+aDkG+o4H5Bw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 6C1DE133A6; Thu, 23 Jun 2022 08:13:56 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 08lzGcQgtGLCfAAAMHmgww (envelope-from ); Thu, 23 Jun 2022 08:13:56 +0000 Message-ID: <58e11013-01ab-8a2c-732e-860ae83a3df6@suse.de> Date: Thu, 23 Jun 2022 10:13:56 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: DMA-buf and uncached system memory Content-Language: en-US To: =?UTF-8?Q?Christian_K=c3=b6nig?= , linux-media , dri-devel , linaro-mm-sig@lists.linaro.org, lkml Cc: "Sharma, Shashank" References: <91ff0bbb-ea3a-2663-3453-dea96ccd6dd8@amd.com> From: Thomas Zimmermann In-Reply-To: <91ff0bbb-ea3a-2663-3453-dea96ccd6dd8@amd.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------ferUzV1300awBJHgsRuRCOIj" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------ferUzV1300awBJHgsRuRCOIj Content-Type: multipart/mixed; boundary="------------O8pK0OQ9gFlyUhIn2IOyy4Z1"; protected-headers="v1" From: Thomas Zimmermann To: =?UTF-8?Q?Christian_K=c3=b6nig?= , linux-media , dri-devel , linaro-mm-sig@lists.linaro.org, lkml Cc: "Sharma, Shashank" Message-ID: <58e11013-01ab-8a2c-732e-860ae83a3df6@suse.de> Subject: Re: DMA-buf and uncached system memory References: <91ff0bbb-ea3a-2663-3453-dea96ccd6dd8@amd.com> In-Reply-To: <91ff0bbb-ea3a-2663-3453-dea96ccd6dd8@amd.com> --------------O8pK0OQ9gFlyUhIn2IOyy4Z1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 SGkgQ2hyaXN0aWFuDQoNCkFtIDE1LjAyLjIxIHVtIDA5OjU4IHNjaHJpZWIgQ2hyaXN0aWFu IEvDtm5pZzoNCj4gSGkgZ3V5cywNCj4gDQo+IHdlIGFyZSBjdXJyZW50bHkgd29ya2luZyBh biBGcmVlc3luYyBhbmQgZGlyZWN0IHNjYW4gb3V0IGZyb20gc3lzdGVtIA0KPiBtZW1vcnkg b24gQU1EIEFQVXMgaW4gQStBIGxhcHRvcHMuDQo+IA0KPiBPbiBwcm9ibGVtIHdlIHN0dW1i bGVkIG92ZXIgaXMgdGhhdCBvdXIgZGlzcGxheSBoYXJkd2FyZSBuZWVkcyB0byBzY2FuIA0K PiBvdXQgZnJvbSB1bmNhY2hlZCBzeXN0ZW0gbWVtb3J5IGFuZCB3ZSBjdXJyZW50bHkgZG9u J3QgaGF2ZSBhIHdheSB0byANCj4gY29tbXVuaWNhdGUgdGhhdCB0aHJvdWdoIERNQS1idWYu DQo+IA0KPiBGb3Igb3VyIHNwZWNpZmljIHVzZSBjYXNlIGF0IGhhbmQgd2UgYXJlIGdvaW5n IHRvIGltcGxlbWVudCBzb21ldGhpbmcgDQo+IGRyaXZlciBzcGVjaWZpYywgYnV0IHRoZSBx dWVzdGlvbiBpcyBzaG91bGQgd2UgaGF2ZSBzb21ldGhpbmcgbW9yZSANCj4gZ2VuZXJpYyBm b3IgdGhpcz8NCg0KSSBoYWQgYSBwYXRjaHNldCBoZXJlIHRoYXQgZXh0ZW5kcyBpb3N5cy1t YXAgKGZvcm1lciBkbWEtYnVmLW1hcCkgd2l0aCANCmNhY2hpbmcgaW5mb3JtYXRpb24uIEkn bGwgcG9zdCBhIGNvcHkuDQoNClNvcnJ5IGZvciBiZWluZyBsYXRlIHRvIHJlcGx5Lg0KDQpC ZXN0IHJlZ2FyZHMNClRob21hcw0KDQo+IA0KPiBBZnRlciBhbGwgdGhlIHN5c3RlbSBtZW1v cnkgYWNjZXNzIHBhdHRlcm4gaXMgYSBQQ0llIGV4dGVuc2lvbiBhbmQgYXMgDQo+IHN1Y2gg c29tZXRoaW5nIGdlbmVyaWMuDQo+IA0KPiBSZWdhcmRzLA0KPiBDaHJpc3RpYW4uDQo+IF9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+IGRyaS1k ZXZlbCBtYWlsaW5nIGxpc3QNCj4gZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZw0K PiBodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1k ZXZlbA0KDQotLSANClRob21hcyBaaW1tZXJtYW5uDQpHcmFwaGljcyBEcml2ZXIgRGV2ZWxv cGVyDQpTVVNFIFNvZnR3YXJlIFNvbHV0aW9ucyBHZXJtYW55IEdtYkgNCk1heGZlbGRzdHIu IDUsIDkwNDA5IE7DvHJuYmVyZywgR2VybWFueQ0KKEhSQiAzNjgwOSwgQUcgTsO8cm5iZXJn KQ0KR2VzY2jDpGZ0c2bDvGhyZXI6IEl2byBUb3Rldg0K --------------O8pK0OQ9gFlyUhIn2IOyy4Z1-- --------------ferUzV1300awBJHgsRuRCOIj Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsF5BAABCAAjFiEExndm/fpuMUdwYFFolh/E3EQov+AFAmK0IMQFAwAAAAAACgkQlh/E3EQov+Bc fw//WLTSrJpOVDrFBR41LD8rDtxfVvpqOjzLHsqJW7bfTLi4cu/fyp82KRogBgbw7DQ09R0IL7jo gx6cYGc7sAxD69K+AJg6XdorFlkbfGAU5yS5pc3LqcuFlMKWti+LRuPaR7j0H+vKNkWYWRn9xBTJ UBXiIfCFTRvnUZUJskn1ZhTt7gMf0ef9YQK+uG17qsMn7l50HI7HYc5tqOfzShFx1/daDfhtPfp/ zJt0adybMIeyzMGqUMFCxkVvsfB7Hr3Lt8wf9jwqeI1snM7RIXY7YBhObys4yieFhQY7ABTb34Iz r8L6Sz4I/idplvoORvDlA3749ljNxwITnc1tVes1CDyAIQ5MMzE4qt3iryhbQAyHm25yqTvcDqCX 4eR8ozx0h39b+6j6RL8xJtPrhQc5IiU+HeuJooU6AVbZAuYIznWRpSp+t0/9yLgB7pNHMDfLAhZZ +e1Fs4yUlgz6aQaw3d9edwIZLi/aRtXxejOrhULAbJyJLnQjhrx/Nvh6UYlgkHuHh5YtAGcAjZ8S GIXVa3z5bTZkA/AWhseL+hMyXs9wNA4ut9bVfwWYCDpwGkVUQM+C/fUEsoVcBqguSKKAj3Gad+6m dwuydLfeqCp5S6980FXloN+69T+tc2Gl+vT3KiICWfcox+B8efv3wZI9VPDELoDBc6p1IR3atvaW 7Js= =fkQx -----END PGP SIGNATURE----- --------------ferUzV1300awBJHgsRuRCOIj--