From patchwork Sat Jul 9 05:59:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akhil P Oommen X-Patchwork-Id: 589223 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 10586C433EF for ; Sat, 9 Jul 2022 06:01:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229685AbiGIGBA (ORCPT ); Sat, 9 Jul 2022 02:01:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229656AbiGIGAw (ORCPT ); Sat, 9 Jul 2022 02:00:52 -0400 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 701295B057; Fri, 8 Jul 2022 23:00:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1657346442; x=1688882442; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=NR9iNRPQAa66fCPpIPSZS3+ID1qCvirnJLJqeYPK8yo=; b=HGOXaK6yQ8qGrhGoOv4aTa7SzBxWSVwKqvqbt9i2B/TbpfBe8nJArNc1 Au52gur83BeHpo3IjDMk9p/dTbhgt9CoXJz2uGKz+sbhYO7vSx8dTHb/U FnuOjfb4iTjKooXMG8eBXU4lo0cGY4LNGdcVC9v6RAa7Iwug6TnvbWKdt 8=; Received: from unknown (HELO ironmsg01-sd.qualcomm.com) ([10.53.140.141]) by alexa-out-sd-01.qualcomm.com with ESMTP; 08 Jul 2022 23:00:42 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg01-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jul 2022 23:00:41 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Fri, 8 Jul 2022 23:00:41 -0700 Received: from hyd-lnxbld559.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Fri, 8 Jul 2022 23:00:36 -0700 From: Akhil P Oommen To: freedreno , , , Rob Clark , Bjorn Andersson CC: Jonathan Marek , Jordan Crouse , Matthias Kaehlcke , "Douglas Anderson" , Akhil P Oommen , Abhinav Kumar , Daniel Vetter , David Airlie , Dmitry Baryshkov , Geert Uytterhoeven , Konrad Dybcio , Sean Paul , Subject: [PATCH v2 7/7] drm/msm/a6xx: Handle GMU prepare-slumber hfi failure Date: Sat, 9 Jul 2022 11:29:35 +0530 Message-ID: <20220709112837.v2.7.I54815c7c36b80d4725cd054e536365250454452f@changeid> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1657346375-1461-1-git-send-email-quic_akhilpo@quicinc.com> References: <1657346375-1461-1-git-send-email-quic_akhilpo@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org When prepare-slumber hfi fails, we should follow a6xx_gmu_force_off() sequence. Signed-off-by: Akhil P Oommen --- (no changes since v1) drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index ec25f19..e033d6a 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -1086,7 +1086,11 @@ static void a6xx_gmu_shutdown(struct a6xx_gmu *gmu) a6xx_bus_clear_pending_transactions(adreno_gpu); /* tell the GMU we want to slumber */ - a6xx_gmu_notify_slumber(gmu); + ret = a6xx_gmu_notify_slumber(gmu); + if (ret) { + a6xx_gmu_force_off(gmu); + return; + } ret = gmu_poll_timeout(gmu, REG_A6XX_GPU_GMU_AO_GPU_CX_BUSY_STATUS, val,