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Thu, 23 Jun 2022 08:42:49 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id gIYAKokntGLuDQAAMHmgww (envelope-from ); Thu, 23 Jun 2022 08:42:49 +0000 Message-ID: <4988ab02-dbdb-e452-7106-771c2a1ebbca@suse.de> Date: Thu, 23 Jun 2022 10:42:49 +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> <58e11013-01ab-8a2c-732e-860ae83a3df6@suse.de> From: Thomas Zimmermann In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------OFTYXzYkyT04oFpF7yLvli0j" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------OFTYXzYkyT04oFpF7yLvli0j Content-Type: multipart/mixed; boundary="------------myyGSpB720BVRwpnx5jni6sb"; 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: <4988ab02-dbdb-e452-7106-771c2a1ebbca@suse.de> Subject: Re: DMA-buf and uncached system memory References: <91ff0bbb-ea3a-2663-3453-dea96ccd6dd8@amd.com> <58e11013-01ab-8a2c-732e-860ae83a3df6@suse.de> In-Reply-To: --------------myyGSpB720BVRwpnx5jni6sb Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 SGkNCg0KQW0gMjMuMDYuMjIgdW0gMTA6MjYgc2NocmllYiBDaHJpc3RpYW4gS8O2bmlnOg0K PiBBbSAyMy4wNi4yMiB1bSAxMDoxMyBzY2hyaWViIFRob21hcyBaaW1tZXJtYW5uOg0KPj4g SGkgQ2hyaXN0aWFuDQo+Pg0KPj4gQW0gMTUuMDIuMjEgdW0gMDk6NTggc2NocmllYiBDaHJp c3RpYW4gS8O2bmlnOg0KPj4+IEhpIGd1eXMsDQo+Pj4NCj4+PiB3ZSBhcmUgY3VycmVudGx5 IHdvcmtpbmcgYW4gRnJlZXN5bmMgYW5kIGRpcmVjdCBzY2FuIG91dCBmcm9tIHN5c3RlbSAN Cj4+PiBtZW1vcnkgb24gQU1EIEFQVXMgaW4gQStBIGxhcHRvcHMuDQo+Pj4NCj4+PiBPbiBw cm9ibGVtIHdlIHN0dW1ibGVkIG92ZXIgaXMgdGhhdCBvdXIgZGlzcGxheSBoYXJkd2FyZSBu ZWVkcyB0byANCj4+PiBzY2FuIG91dCBmcm9tIHVuY2FjaGVkIHN5c3RlbSBtZW1vcnkgYW5k IHdlIGN1cnJlbnRseSBkb24ndCBoYXZlIGEgDQo+Pj4gd2F5IHRvIGNvbW11bmljYXRlIHRo YXQgdGhyb3VnaCBETUEtYnVmLg0KPj4+DQo+Pj4gRm9yIG91ciBzcGVjaWZpYyB1c2UgY2Fz ZSBhdCBoYW5kIHdlIGFyZSBnb2luZyB0byBpbXBsZW1lbnQgc29tZXRoaW5nIA0KPj4+IGRy aXZlciBzcGVjaWZpYywgYnV0IHRoZSBxdWVzdGlvbiBpcyBzaG91bGQgd2UgaGF2ZSBzb21l dGhpbmcgbW9yZSANCj4+PiBnZW5lcmljIGZvciB0aGlzPw0KPj4NCj4+IEkgaGFkIGEgcGF0 Y2hzZXQgaGVyZSB0aGF0IGV4dGVuZHMgaW9zeXMtbWFwIChmb3JtZXIgZG1hLWJ1Zi1tYXAp IHdpdGggDQo+PiBjYWNoaW5nIGluZm9ybWF0aW9uLiBJJ2xsIHBvc3QgYSBjb3B5Lg0KPiAN Cj4gT2gsIG5pY2UuIEJ1dCB3aHkgb24gaW9zeXMtbWFwPyBXZSBuZWVkIHRoYXQgcGVyIERN QS1idWYuDQoNCkl0J3MgcmV0dXJuZWQgdmlhIHRoZSBkbWEtYnVmJ3Mgdm1hcCBjYWxsIHdp dGhpbiB0aGUgaW9zeXMtbWFwIA0Kc3RydWN0dXJlLiBJZiB0aGUgZG1hLWJ1ZiBtb3Zlcywg dGhlIGZvbGxvd2luZyB2bWFwIGNhbGxzIGFsd2F5cyByZXR1cm4gDQp1cGRhdGVkIGNhY2hp bmcgaW5mb3JtYXRpb24uIE1heWJlIGl0J3Mgbm90IHF1aXRlIHdoYXQgeW91IG5lZWQgZm9y IA0KRnJlZXN5bmM/DQoNCkknbGwgdXNlIHRoaXMgZm9yIGZvcm1hdC1jb252ZXJzaW9uIGhl bHBlcnMsIHdoaWNoIGRvIHNvbWUgb3B0aW1pemF0aW9ucyANCmZvciB1bmNhY2hlZCBtZW1v cnkuDQoNCkFueXdheSwgSSBoYXZlIHRvIGxvb2sgZm9yIHRoYXQgcGF0Y2guLi4NCg0KQmVz dCByZWdhcmRzDQpUaG9tYXMNCg0KPiANCj4gVGhhbmtzLA0KPiBDaHJpc3RpYW4uDQo+IA0K Pj4NCj4+IFNvcnJ5IGZvciBiZWluZyBsYXRlIHRvIHJlcGx5Lg0KPj4NCj4+IEJlc3QgcmVn YXJkcw0KPj4gVGhvbWFzDQo+Pg0KPj4+DQo+Pj4gQWZ0ZXIgYWxsIHRoZSBzeXN0ZW0gbWVt b3J5IGFjY2VzcyBwYXR0ZXJuIGlzIGEgUENJZSBleHRlbnNpb24gYW5kIGFzIA0KPj4+IHN1 Y2ggc29tZXRoaW5nIGdlbmVyaWMuDQo+Pj4NCj4+PiBSZWdhcmRzLA0KPj4+IENocmlzdGlh bi4NCj4+PiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f Xw0KPj4+IGRyaS1kZXZlbCBtYWlsaW5nIGxpc3QNCj4+PiBkcmktZGV2ZWxAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnDQo+Pj4gaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1h bi9saXN0aW5mby9kcmktZGV2ZWwNCj4+DQo+IA0KDQotLSANClRob21hcyBaaW1tZXJtYW5u DQpHcmFwaGljcyBEcml2ZXIgRGV2ZWxvcGVyDQpTVVNFIFNvZnR3YXJlIFNvbHV0aW9ucyBH ZXJtYW55IEdtYkgNCk1heGZlbGRzdHIuIDUsIDkwNDA5IE7DvHJuYmVyZywgR2VybWFueQ0K KEhSQiAzNjgwOSwgQUcgTsO8cm5iZXJnKQ0KR2VzY2jDpGZ0c2bDvGhyZXI6IEl2byBUb3Rl dg0K --------------myyGSpB720BVRwpnx5jni6sb-- --------------OFTYXzYkyT04oFpF7yLvli0j Content-Type: application/pgp-signature; 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