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Tue, 12 Mar 2019 18:16:16 +0000 From: Ayan Halder To: Ayan Halder , Liviu Dudau , Brian Starkey , "malidp@foss.arm.com" , "maarten.lankhorst@linux.intel.com" , "maxime.ripard@bootlin.com" , "sean@poorly.run" , "airlied@linux.ie" , "daniel@ffwll.ch" , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "alyssa@rosenzweig.io" CC: nd Subject: [PATCH v4 07/10] drm/arm/malidp:- Writeback framebuffer does not support any modifiers Thread-Topic: [PATCH v4 07/10] drm/arm/malidp:- Writeback framebuffer does not support any modifiers Thread-Index: AQHU2P+u+q3aNL5u6kCjW9T3xbK3zg== Date: Tue, 12 Mar 2019 18:16:16 +0000 Message-ID: <1552414556-5756-7-git-send-email-ayan.halder@arm.com> References: <1552414556-5756-1-git-send-email-ayan.halder@arm.com> In-Reply-To: <1552414556-5756-1-git-send-email-ayan.halder@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: LO2P265CA0188.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:a::32) To AM0PR08MB3891.eurprd08.prod.outlook.com (2603:10a6:208:109::19) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Ayan.Halder@arm.com; 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received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 6MrcEls4rL8xqywusQeKoP5B4KoduF7509v2Y4M0fN5NyC1xMZw38kkDbGRdU2y5AG7ho6FqU2Ta48tUe/NBVl0+4QueHXNASfQVncREVIxzSDEgfVjROifXDC/x6N6m90TCfFiKhSqpKAIzg2FQ2ljI0QJb03FScxuGiTrY1wOGiCo0Omz9b7Odo2AgclbmqSBjz0fl1GqKvzoj4aUmUyNC3yEdxrvXo4NukcN9UobAD9+gRIbkdZSBvKGTRYp9JR7vaAwWAj6lvaOiF/LHyJtddkZnvPFMqiXo8UPPgl8lsprFgaIXtO83zhdofc7XRAG0q6kkmKB7COoQv2JTJ39NpbK7+2h2A4i1Ahk0a3E8nCzDnrWc3rXFnE7S1VztyxOcL/NDyasZZIeFr2jOBtHM1Og//BJ+SlYoeQX4u4Q= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: e1804616-1b81-4245-214f-08d6a716d11f X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Mar 2019 18:16:16.2043 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR08MB5138 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ayan Kumar Halder In malidp, the writeback pipeline does not support writing crtc output to a framebuffer with modifiers ie the memory writeback content is devoid of any compression or tiling, etc. So we have added a commit check in memory writeback encoder helper function to validate if the framebuffer has any modifier and if so, return EINVAL. Changes since v3 (series): - Added the ack - Rebased on the latest drm-misc-next Signed-off-by: Ayan Kumar halder Acked-by: Liviu Dudau Acked-by: Alyssa Rosenzweig --- drivers/gpu/drm/arm/malidp_mw.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/arm/malidp_mw.c b/drivers/gpu/drm/arm/malidp_m= w.c index 28cd351..2865f7a 100644 --- a/drivers/gpu/drm/arm/malidp_mw.c +++ b/drivers/gpu/drm/arm/malidp_mw.c @@ -141,6 +141,11 @@ malidp_mw_encoder_atomic_check(struct drm_encoder *enc= oder, return -EINVAL; } =20 + if (fb->modifier) { + DRM_DEBUG_KMS("Writeback framebuffer does not support modifiers\n"); + return -EINVAL; + } + mw_state->format =3D malidp_hw_get_format_id(&malidp->dev->hw->map, SE_MEMWRITE, fb->format->format, !!fb->modifier); --=20 2.7.4