From mboxrd@z Thu Jan 1 00:00:00 1970 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 A552EECAAA1 for ; Mon, 24 Oct 2022 12:50:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234308AbiJXMuZ (ORCPT ); Mon, 24 Oct 2022 08:50:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234612AbiJXMpU (ORCPT ); Mon, 24 Oct 2022 08:45:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 455D02E691; Mon, 24 Oct 2022 05:09:52 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5AF6961281; Mon, 24 Oct 2022 12:09:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70E89C433C1; Mon, 24 Oct 2022 12:09:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666613342; bh=/DnBlGEHmDsKGRdYo7vtlx+6+pve0D4reGzgxgMkpRs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kkmgqS6vrXuNc4EyLhVgDcj9NN5/KwxnvnNRVXUuvD+lcPPzeIy3YdSuYhhdWle67 KblEpOCNJz1jYGcbaNfaiEVhFNyVWWcyPqSEQeVmwe3Qv5T/DQWvUni6YKu6nMwPwE iW9Mqr1V+w+TY7tYd6SStVxt57C1WVXZSIzZzyA0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dmitry Baryshkov , Abhinav Kumar , Rob Clark , Sasha Levin Subject: [PATCH 5.4 101/255] drm/msm/dpu: index dpu_kms->hw_vbif using vbif_idx Date: Mon, 24 Oct 2022 13:30:11 +0200 Message-Id: <20221024113005.834791195@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113002.471093005@linuxfoundation.org> References: <20221024113002.471093005@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dmitry Baryshkov [ Upstream commit 7538f80ae0d98bf51eb89eee5344aec219902d42 ] Remove loops over hw_vbif. Instead always VBIF's idx as an index in the array. This fixes an error in dpu_kms_hw_init(), where we fill dpu_kms->hw_vbif[i], but check for an error pointer at dpu_kms->hw_vbif[vbif_idx]. Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support") Signed-off-by: Dmitry Baryshkov Reviewed-by: Abhinav Kumar Patchwork: https://patchwork.freedesktop.org/patch/489569/ Link: https://lore.kernel.org/r/20220615125703.24647-1-dmitry.baryshkov@linaro.org Signed-off-by: Dmitry Baryshkov Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 12 ++++------ drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c | 29 +++++++++++------------- 2 files changed, 18 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index c08c67338d73..a74f8ae1a894 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -596,12 +596,10 @@ static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms) _dpu_kms_mmu_destroy(dpu_kms); if (dpu_kms->catalog) { - for (i = 0; i < dpu_kms->catalog->vbif_count; i++) { - u32 vbif_idx = dpu_kms->catalog->vbif[i].id; - - if ((vbif_idx < VBIF_MAX) && dpu_kms->hw_vbif[vbif_idx]) { - dpu_hw_vbif_destroy(dpu_kms->hw_vbif[vbif_idx]); - dpu_kms->hw_vbif[vbif_idx] = NULL; + for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) { + if (dpu_kms->hw_vbif[i]) { + dpu_hw_vbif_destroy(dpu_kms->hw_vbif[i]); + dpu_kms->hw_vbif[i] = NULL; } } } @@ -899,7 +897,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms) for (i = 0; i < dpu_kms->catalog->vbif_count; i++) { u32 vbif_idx = dpu_kms->catalog->vbif[i].id; - dpu_kms->hw_vbif[i] = dpu_hw_vbif_init(vbif_idx, + dpu_kms->hw_vbif[vbif_idx] = dpu_hw_vbif_init(vbif_idx, dpu_kms->vbif[vbif_idx], dpu_kms->catalog); if (IS_ERR_OR_NULL(dpu_kms->hw_vbif[vbif_idx])) { rc = PTR_ERR(dpu_kms->hw_vbif[vbif_idx]); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c index 8d24b79fd400..5e6bb2f306be 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c @@ -11,6 +11,14 @@ #include "dpu_hw_vbif.h" #include "dpu_trace.h" +static struct dpu_hw_vbif *dpu_get_vbif(struct dpu_kms *dpu_kms, enum dpu_vbif vbif_idx) +{ + if (vbif_idx < ARRAY_SIZE(dpu_kms->hw_vbif)) + return dpu_kms->hw_vbif[vbif_idx]; + + return NULL; +} + /** * _dpu_vbif_wait_for_xin_halt - wait for the xin to halt * @vbif: Pointer to hardware vbif driver @@ -148,11 +156,11 @@ static u32 _dpu_vbif_get_ot_limit(struct dpu_hw_vbif *vbif, void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms, struct dpu_vbif_set_ot_params *params) { - struct dpu_hw_vbif *vbif = NULL; + struct dpu_hw_vbif *vbif; struct dpu_hw_mdp *mdp; bool forced_on = false; u32 ot_lim; - int ret, i; + int ret; if (!dpu_kms) { DPU_ERROR("invalid arguments\n"); @@ -160,12 +168,7 @@ void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms, } mdp = dpu_kms->hw_mdp; - for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) { - if (dpu_kms->hw_vbif[i] && - dpu_kms->hw_vbif[i]->idx == params->vbif_idx) - vbif = dpu_kms->hw_vbif[i]; - } - + vbif = dpu_get_vbif(dpu_kms, params->vbif_idx); if (!vbif || !mdp) { DPU_DEBUG("invalid arguments vbif %d mdp %d\n", vbif != 0, mdp != 0); @@ -208,7 +211,7 @@ void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms, void dpu_vbif_set_qos_remap(struct dpu_kms *dpu_kms, struct dpu_vbif_set_qos_params *params) { - struct dpu_hw_vbif *vbif = NULL; + struct dpu_hw_vbif *vbif; struct dpu_hw_mdp *mdp; bool forced_on = false; const struct dpu_vbif_qos_tbl *qos_tbl; @@ -220,13 +223,7 @@ void dpu_vbif_set_qos_remap(struct dpu_kms *dpu_kms, } mdp = dpu_kms->hw_mdp; - for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) { - if (dpu_kms->hw_vbif[i] && - dpu_kms->hw_vbif[i]->idx == params->vbif_idx) { - vbif = dpu_kms->hw_vbif[i]; - break; - } - } + vbif = dpu_get_vbif(dpu_kms, params->vbif_idx); if (!vbif || !vbif->cap) { DPU_ERROR("invalid vbif %d\n", params->vbif_idx); -- 2.35.1