From patchwork Wed Nov 2 23:13:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 620868 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 3BEABC43219 for ; Wed, 2 Nov 2022 23:13:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230132AbiKBXNW (ORCPT ); Wed, 2 Nov 2022 19:13:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56670 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230159AbiKBXNS (ORCPT ); Wed, 2 Nov 2022 19:13:18 -0400 Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [IPv6:2a00:1450:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EC86DED9 for ; Wed, 2 Nov 2022 16:13:17 -0700 (PDT) Received: by mail-lf1-x133.google.com with SMTP id d25so170140lfb.7 for ; Wed, 02 Nov 2022 16:13:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=c55txKhE8RFQaKFPB1LANvhtQdHp4s4KlPHFEvihAOs=; b=JjgQyTbrvfrA0k4TOfGyJm2Bt9+7jLRS981xSiM0unzDPwxCu3uvZhVKwXJUdxuHW3 e4i9T6Ldpo5wCpNtLL3nXEPuw/u5BIidnhk5C8/cmAii4ZN0wKUoIMn4M/e/OI3BfhbJ Ce0IkxtGUUr0jpkea8vHFKKZwUQDJPM+oPnOupN6SmqjJASahUPBk4B0dgboK97TNKrZ liD82dmwCYksbpxVU0QUZOWrn3O21a4wiJFqNMt2APQBwgBdNmH7FGZ8f8OlKuSSR/O8 CcXvs5duxWXoPCrCB5n/FqZz7dqc09Tt/M0OhfgVJNEWuPWpzBjFrGsiqNpMBgnz08Ke g1hg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=c55txKhE8RFQaKFPB1LANvhtQdHp4s4KlPHFEvihAOs=; b=5OBjGpKVcEyy2dlUopHVKtSYfdm4lbFyEzaXkNCJ6/31qTmr5oKI44E2/Kj6/D1moS nfwdAR/uJF3DAV7NkW70+hxnvkv4rOmqgoJOeRcmoNHL/8dnmyu26/WJCB6/k3WFNH3T C9NAQkz8SrlVSzNr2axC+6IriDbadywwnnKPVLMF2iot/KzR1uDa8cgtS/sN+ivBFYFe dwJZdBwlAkThpqyoQwNhKYNoP+xR+dacCgdd4fEdnjBZmXY1Yc/i6QphrxVTEuyxpOfO 62yNYqb3dPVGnO5mbS7dwY4bzXAx8VgYA4OJYlm/7cVYl7UkmhbhN6cgosKETu0DRJD2 R5Cg== X-Gm-Message-State: ACrzQf1q1qwvhqsX6duEVn8+6ElN95fVT+kMg5MjVN0Yl/qezK5IlUVX VxOwqK7DIjWmLDt9xJkzg8t+3Q== X-Google-Smtp-Source: AMsMyM6i8kH2PIK7323eH+pwjjpyWcRfkIoG7iuiAv+Uzo4hkPXJC1+aqzmz2hx5BpFsqt/p7M1Ekg== X-Received: by 2002:a05:6512:3446:b0:4b0:69b0:ba15 with SMTP id j6-20020a056512344600b004b069b0ba15mr8900465lfr.184.1667430796785; Wed, 02 Nov 2022 16:13:16 -0700 (PDT) Received: from localhost.localdomain ([195.165.23.90]) by smtp.gmail.com with ESMTPSA id m6-20020a056512114600b004b0a1e77cb6sm1636134lfg.139.2022.11.02.16.13.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Nov 2022 16:13:16 -0700 (PDT) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Clark , Sean Paul , Abhinav Kumar , Rob Herring , Krzysztof Kozlowski Cc: Stephen Boyd , David Airlie , Daniel Vetter , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, Vinod Koul Subject: [PATCH v2 6/8] drm/msm/dpu: add support for MDP_TOP blackhole Date: Thu, 3 Nov 2022 02:13:07 +0300 Message-Id: <20221102231309.583587-7-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221102231309.583587-1-dmitry.baryshkov@linaro.org> References: <20221102231309.583587-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On sm8450 a register block was removed from MDP TOP. Accessing it during snapshotting results in NoC errors / immediate reboot. Skip accessing these registers during snapshot. Tested-by: Vinod Koul Reviewed-by: Vinod Koul Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 1 + drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 11 +++++++++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h index 38aa38ab1568..4730f8268f2a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h @@ -92,6 +92,7 @@ enum { DPU_MDP_UBWC_1_0, DPU_MDP_UBWC_1_5, DPU_MDP_AUDIO_SELECT, + DPU_MDP_PERIPH_0_REMOVED, DPU_MDP_MAX }; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index f3660cd14f4f..67f2e5288b3c 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -927,8 +927,15 @@ static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_k msm_disp_snapshot_add_block(disp_state, cat->wb[i].len, dpu_kms->mmio + cat->wb[i].base, "wb_%d", i); - msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len, - dpu_kms->mmio + cat->mdp[0].base, "top"); + if (top->caps->features & BIT(DPU_MDP_PERIPH_0_REMOVED)) { + msm_disp_snapshot_add_block(disp_state, 0x380, + dpu_kms->mmio + cat->mdp[0].base, "top"); + msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len - 0x3a8, + dpu_kms->mmio + cat->mdp[0].base + 0x3a8, "top_2"); + } else { + msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len, + dpu_kms->mmio + cat->mdp[0].base, "top"); + } pm_runtime_put_sync(&dpu_kms->pdev->dev); }