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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF3BAC04A6B for ; Thu, 9 May 2019 02:04:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AF22721530 for ; Thu, 9 May 2019 02:04:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=onstation.org header.i=@onstation.org header.b="T4mZiU12" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726589AbfEICEK (ORCPT ); Wed, 8 May 2019 22:04:10 -0400 Received: from onstation.org ([52.200.56.107]:56756 "EHLO onstation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726109AbfEICEJ (ORCPT ); Wed, 8 May 2019 22:04:09 -0400 Received: from localhost.localdomain (c-98-239-145-235.hsd1.wv.comcast.net [98.239.145.235]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: masneyb) by onstation.org (Postfix) with ESMTPSA id 16C0E4501F; Thu, 9 May 2019 02:04:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=onstation.org; s=default; t=1557367448; bh=hLvKx3H0gKd8d48PrIs2ZUsM3jMYG5TE4uEae9BECco=; h=From:To:Subject:Date:In-Reply-To:References:From; b=T4mZiU12lOWGL9Nyg6XGDECt0GtyyfSg64JtwHj+MwJLDKZFnTeIFJOyvRHN8pxX+ /rAS+O5RoLCOCMlHGtX5k8f6Xv8J2fTNnWP/Mr/opK/PYYXxjsRntW6WUSmpbsFMFt Ua0xMjqjjdBq58ukL4pWvs1oxhH9jY31SAf8aUww= From: Brian Masney To: robdclark@gmail.com, sean@poorly.run, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, airlied@linux.ie, daniel@ffwll.ch, linux-kernel@vger.kernel.org, linus.walleij@linaro.org, jonathan@marek.ca, robh@kernel.org Subject: [PATCH v2 1/6] drm: msm: remove resv fields from msm_gem_object struct Date: Wed, 8 May 2019 22:03:47 -0400 Message-Id: <20190509020352.14282-2-masneyb@onstation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190509020352.14282-1-masneyb@onstation.org> References: <20190509020352.14282-1-masneyb@onstation.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The msm_gem_object structure contains resv and _resv fields that are no longer needed since the reservation object is now stored on drm_gem_object. msm_atomic_prepare_fb() and msm_atomic_prepare_fb() both referenced the wrong reservation object, and would lead to an attempt to dereference a NULL pointer. Correct those two cases to point to the correct reservation object. Signed-off-by: Brian Masney Fixes: dd55cf6929e6 ("drm: msm: Switch to use drm_gem_object reservation_object") --- Patch introduced in v2 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 4 +--- drivers/gpu/drm/msm/msm_atomic.c | 4 +--- drivers/gpu/drm/msm/msm_gem.c | 3 --- drivers/gpu/drm/msm/msm_gem.h | 4 ---- 4 files changed, 2 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c index da1f727d7495..ce1a555e1f31 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -780,7 +780,6 @@ static int dpu_plane_prepare_fb(struct drm_plane *plane, struct dpu_plane_state *pstate = to_dpu_plane_state(new_state); struct dpu_hw_fmt_layout layout; struct drm_gem_object *obj; - struct msm_gem_object *msm_obj; struct dma_fence *fence; struct dpu_kms *kms = _dpu_plane_get_kms(&pdpu->base); int ret; @@ -799,8 +798,7 @@ static int dpu_plane_prepare_fb(struct drm_plane *plane, * implicit fence and fb prepare by hand here. */ obj = msm_framebuffer_bo(new_state->fb, 0); - msm_obj = to_msm_bo(obj); - fence = reservation_object_get_excl_rcu(msm_obj->resv); + fence = reservation_object_get_excl_rcu(obj->resv); if (fence) drm_atomic_set_fence_for_plane(new_state, fence); diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c index f5b1256e32b6..131c23a267ee 100644 --- a/drivers/gpu/drm/msm/msm_atomic.c +++ b/drivers/gpu/drm/msm/msm_atomic.c @@ -49,15 +49,13 @@ int msm_atomic_prepare_fb(struct drm_plane *plane, struct msm_drm_private *priv = plane->dev->dev_private; struct msm_kms *kms = priv->kms; struct drm_gem_object *obj; - struct msm_gem_object *msm_obj; struct dma_fence *fence; if (!new_state->fb) return 0; obj = msm_framebuffer_bo(new_state->fb, 0); - msm_obj = to_msm_bo(obj); - fence = reservation_object_get_excl_rcu(msm_obj->resv); + fence = reservation_object_get_excl_rcu(obj->resv); drm_atomic_set_fence_for_plane(new_state, fence); diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 31d5a744d84f..947508e8269d 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -973,9 +973,6 @@ static int msm_gem_new_impl(struct drm_device *dev, msm_obj->flags = flags; msm_obj->madv = MSM_MADV_WILLNEED; - if (resv) - msm_obj->base.resv = resv; - INIT_LIST_HEAD(&msm_obj->submit_entry); INIT_LIST_HEAD(&msm_obj->vmas); diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index c5ac781dffee..812d1b1369a5 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -86,10 +86,6 @@ struct msm_gem_object { struct llist_node freed; - /* normally (resv == &_resv) except for imported bo's */ - struct reservation_object *resv; - struct reservation_object _resv; - /* For physically contiguous buffers. Used when we don't have * an IOMMU. Also used for stolen/splashscreen buffer. */ -- 2.20.1