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Wed, 16 Oct 2019 08:21:24 +0000 From: "james qian wang (Arm Technology China)" To: Mihail Atanassov CC: "dri-devel@lists.freedesktop.org" , David Airlie , Liviu Dudau , "linux-kernel@vger.kernel.org" , nd Subject: Re: drm/komeda: Don't flush inactive pipes Thread-Topic: drm/komeda: Don't flush inactive pipes Thread-Index: AQHVg/qy9vCXt00JukKh3lKp5LBlUg== Date: Wed, 16 Oct 2019 08:21:24 +0000 Message-ID: <20191016082117.GA18601@jamwan02-TSP300> References: <20191010102950.56253-1-mihail.atanassov@arm.com> In-Reply-To: <20191010102950.56253-1-mihail.atanassov@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mutt/1.10.1 (2018-07-13) x-originating-ip: [113.29.88.7] x-clientproxiedby: HK2PR0302CA0005.apcprd03.prod.outlook.com (2603:1096:202::15) To VE1PR08MB5006.eurprd08.prod.outlook.com (2603:10a6:803:113::31) Authentication-Results-Original: spf=none (sender IP is ) smtp.mailfrom=james.qian.wang@arm.com; x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email X-MS-Office365-Filtering-Correlation-Id: 57a6e671-78f4-4101-aa6c-08d75211dccf X-MS-Office365-Filtering-HT: Tenant X-MS-TrafficTypeDiagnostic: VE1PR08MB5088:|VE1PR08MB5088:|AM4PR08MB2675: x-ms-exchange-transport-forked: True X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true x-ms-oob-tlc-oobclassifiers: OLM:147;OLM:147; 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X-MS-Office365-Filtering-Correlation-Id-Prvs: 652180b1-cfef-4c71-b29b-08d75211d554 NoDisclaimer: True X-Forefront-PRVS: 0192E812EC X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: +wyBcC8OsPSHLvzt/L1cIB+7hqJBeANCzenOewIrymNTMQq3bzHky/QNKyIhGSNHV1TCl2Hfez6doRKEfZoTWdz0kK3tWkaA4KSf6E/qfF0YMyKz4LOKe+8U5641nLxjBZjX/U413cwbDFU2VhMOi0dNceHpc/si1TJPp5E1BpolPriOxH3RWfTi+NVULrQa+rj9+sbfh66j/Q8dOBj92RsFzElA4X2G0NHU7pS3x7GnPJ24smsOzu+T2bIh2BRreySc9ZHE2SfJ3Qf7uOoRLr/uRn9cglYs6sYhvdyVucfID+DU4VF46IOyT0MH9aq17cfvJvckmWeYnJX+vlv4qYB88g987OlB0iTr/9SOCESYbiqoq2c2Zf6BqIsyrf9bqEmYwLamSYww/TXeyJ7cr8ocB4/I6garl+hpVnUiSSU= X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Oct 2019 08:21:36.8172 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 57a6e671-78f4-4101-aa6c-08d75211dccf X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM4PR08MB2675 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 10, 2019 at 10:30:07AM +0000, Mihail Atanassov wrote: > HW doesn't allow flushing inactive pipes and raises an MERR interrupt > if you try to do so. Stop triggering the MERR interrupt in the > middle of a commit by calling drm_atomic_helper_commit_planes > with the ACTIVE_ONLY flag. >=20 > Signed-off-by: Mihail Atanassov > --- > drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) >=20 > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gp= u/drm/arm/display/komeda/komeda_kms.c > index 8820ce15ce37..ae274902ff92 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c > @@ -82,7 +82,8 @@ static void komeda_kms_commit_tail(struct drm_atomic_st= ate *old_state) > =20 > drm_atomic_helper_commit_modeset_disables(dev, old_state); > =20 > - drm_atomic_helper_commit_planes(dev, old_state, 0); > + drm_atomic_helper_commit_planes(dev, old_state, > + DRM_PLANE_COMMIT_ACTIVE_ONLY); > Looks good to me. Reviewed-by: James Qian Wang (Arm Technology China) > drm_atomic_helper_commit_modeset_enables(dev, old_state); > =20 From mboxrd@z Thu Jan 1 00:00:00 1970 From: "james qian wang (Arm Technology China)" Subject: Re: drm/komeda: Don't flush inactive pipes Date: Wed, 16 Oct 2019 08:21:24 +0000 Message-ID: <20191016082117.GA18601@jamwan02-TSP300> References: <20191010102950.56253-1-mihail.atanassov@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from EUR03-DB5-obe.outbound.protection.outlook.com (mail-eopbgr40062.outbound.protection.outlook.com [40.107.4.62]) by gabe.freedesktop.org (Postfix) with ESMTPS id 501B5894E3 for ; Wed, 16 Oct 2019 08:21:41 +0000 (UTC) In-Reply-To: <20191010102950.56253-1-mihail.atanassov@arm.com> Content-Language: en-US Content-ID: <7A1DD0FEC62ADD4882EA118DD1D6989E@eurprd08.prod.outlook.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Mihail Atanassov Cc: David Airlie , nd , Liviu Dudau , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" List-Id: dri-devel@lists.freedesktop.org T24gVGh1LCBPY3QgMTAsIDIwMTkgYXQgMTA6MzA6MDdBTSArMDAwMCwgTWloYWlsIEF0YW5hc3Nv diB3cm90ZToKPiBIVyBkb2Vzbid0IGFsbG93IGZsdXNoaW5nIGluYWN0aXZlIHBpcGVzIGFuZCBy YWlzZXMgYW4gTUVSUiBpbnRlcnJ1cHQKPiBpZiB5b3UgdHJ5IHRvIGRvIHNvLiBTdG9wIHRyaWdn ZXJpbmcgdGhlIE1FUlIgaW50ZXJydXB0IGluIHRoZQo+IG1pZGRsZSBvZiBhIGNvbW1pdCBieSBj YWxsaW5nIGRybV9hdG9taWNfaGVscGVyX2NvbW1pdF9wbGFuZXMKPiB3aXRoIHRoZSBBQ1RJVkVf T05MWSBmbGFnLgo+IAo+IFNpZ25lZC1vZmYtYnk6IE1paGFpbCBBdGFuYXNzb3YgPG1paGFpbC5h dGFuYXNzb3ZAYXJtLmNvbT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2FybS9kaXNwbGF5L2tv bWVkYS9rb21lZGFfa21zLmMgfCAzICsrLQo+ICAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25z KCspLCAxIGRlbGV0aW9uKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9hcm0v ZGlzcGxheS9rb21lZGEva29tZWRhX2ttcy5jIGIvZHJpdmVycy9ncHUvZHJtL2FybS9kaXNwbGF5 L2tvbWVkYS9rb21lZGFfa21zLmMKPiBpbmRleCA4ODIwY2UxNWNlMzcuLmFlMjc0OTAyZmY5MiAx MDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vYXJtL2Rpc3BsYXkva29tZWRhL2tvbWVkYV9r bXMuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9hcm0vZGlzcGxheS9rb21lZGEva29tZWRhX2tt cy5jCj4gQEAgLTgyLDcgKzgyLDggQEAgc3RhdGljIHZvaWQga29tZWRhX2ttc19jb21taXRfdGFp bChzdHJ1Y3QgZHJtX2F0b21pY19zdGF0ZSAqb2xkX3N0YXRlKQo+ICAKPiAgCWRybV9hdG9taWNf aGVscGVyX2NvbW1pdF9tb2Rlc2V0X2Rpc2FibGVzKGRldiwgb2xkX3N0YXRlKTsKPiAgCj4gLQlk cm1fYXRvbWljX2hlbHBlcl9jb21taXRfcGxhbmVzKGRldiwgb2xkX3N0YXRlLCAwKTsKPiArCWRy bV9hdG9taWNfaGVscGVyX2NvbW1pdF9wbGFuZXMoZGV2LCBvbGRfc3RhdGUsCj4gKwkJCQkJRFJN X1BMQU5FX0NPTU1JVF9BQ1RJVkVfT05MWSk7Cj4KCkxvb2tzIGdvb2QgdG8gbWUuClJldmlld2Vk LWJ5OiBKYW1lcyBRaWFuIFdhbmcgKEFybSBUZWNobm9sb2d5IENoaW5hKSA8amFtZXMucWlhbi53 YW5nQGFybS5jb20+Cgo+ICAJZHJtX2F0b21pY19oZWxwZXJfY29tbWl0X21vZGVzZXRfZW5hYmxl cyhkZXYsIG9sZF9zdGF0ZSk7Cj4gIApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9kcmktZGV2ZWw=