From patchwork Tue May 3 23:57:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Srivatsa, Anusha" X-Patchwork-Id: 12836564 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 63870C433F5 for ; Wed, 4 May 2022 00:01:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C06D6112008; Wed, 4 May 2022 00:01:15 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 14699112008 for ; Wed, 4 May 2022 00:01:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651622474; x=1683158474; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=s3bvzzVbF776Ek4PEcH3UBqBvtXDBpQpiNpyaXDZp3o=; b=WUyc422s/+n4dIh7MgQ1/etPmvBzj+kfI72nYMuuNVGsRHcxPoiQDkyc M7lf+EqH1Vs149IPirXbrT2oKgvR7o2NaVmCV465TlNzTQQFImKgdwUQA N6RLzszP7E9d6q7t9qKoyfeOR+JplZ5HVVOnsmCiK4eGrru3EGSG/CHqv Y7anwz4eERsbCWVQPlmd3kaTEhshIEg97GQXiL8Qk0BDrVNI4JNXb/Zpl p30dREiyFP6XI+cX5tR2AZmBFenu2w9bZHnm7uyrAW7cP0ZDx0GRV1lyd cop/+0F25oMQef7wkcqRpNdFHh9OlyOZ7hBd9/GDcacfs21uAuF8gHRxd A==; X-IronPort-AV: E=McAfee;i="6400,9594,10336"; a="292812363" X-IronPort-AV: E=Sophos;i="5.91,196,1647327600"; d="scan'208";a="292812363" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2022 17:01:13 -0700 X-IronPort-AV: E=Sophos;i="5.91,196,1647327600"; d="scan'208";a="599292143" Received: from anushasr-mobl6.jf.intel.com ([10.165.21.155]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2022 17:01:13 -0700 From: Anusha Srivatsa To: intel-gfx@lists.freedesktop.org Date: Tue, 3 May 2022 16:57:28 -0700 Message-Id: <20220503235729.617954-1-anusha.srivatsa@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/1] DG2 DMC Support X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" While DG2 supports DC5 and DC9, some of the tests in fast-feedback blew up DG2 when the tests forced transition from dc5->dc9 on suspend and dc9->dc5 on resume. Some local experiments performed with Rodrigo on a RIL system showed promising results when dc5 was completely diabled and i915 took only dc9 paths. Sending this so we can check the CI results to confirm the findings from local testing which will hopefully help narrow down the root cause of MMIO BAR lost issue Cc: Rodrigo Vivi Cc: Imre Deak Anusha Srivatsa (1): drm/i915/dmc: Load DMC on DG2 drivers/gpu/drm/i915/display/intel_display_power.c | 4 +++- drivers/gpu/drm/i915/display/intel_dmc.c | 10 +++++++++- 2 files changed, 12 insertions(+), 2 deletions(-) Acked-by: Rodrigo Vivi