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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C90DBC4167B for ; Mon, 15 Nov 2021 23:36:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C1C5861A40 for ; Mon, 15 Nov 2021 23:36:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245330AbhKOXjS (ORCPT ); Mon, 15 Nov 2021 18:39:18 -0500 Received: from mail.kernel.org ([198.145.29.99]:44634 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343654AbhKOTVd (ORCPT ); Mon, 15 Nov 2021 14:21:33 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id DC456614C8; Mon, 15 Nov 2021 18:43:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637001834; bh=z9QwL5HwRKZ+/ViqNjUBwRoqcec4cU+9+jk6UoW8e88=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jt9AMf+5wJxiPKkXYB6nmb15kBLjOUBPSy7dnh6MfPP7j6vkkUSQNbpnftco34VpL NGfcI2A9ihrXa/1vc6mcNI4sRMmomPfyNzGXCCy5gRRn7da+ApCnCVU2/SbUPp7Op6 bt6FiyUtE2qfZt0HhROIoIutfCwGxCRtLR/IwaFQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Iago Toral Quiroga , Melissa Wen , Melissa Wen , Sasha Levin Subject: [PATCH 5.15 337/917] drm/v3d: fix wait for TMU write combiner flush Date: Mon, 15 Nov 2021 17:57:12 +0100 Message-Id: <20211115165440.180197487@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165428.722074685@linuxfoundation.org> References: <20211115165428.722074685@linuxfoundation.org> User-Agent: quilt/0.66 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: Iago Toral Quiroga [ Upstream commit e4f868191138975f2fdf2f37c11318b47db4acc9 ] The hardware sets the TMUWCF bit back to 0 when the TMU write combiner flush completes so we should be checking for that instead of the L2TFLS bit. v2 (Melissa Wen): - Add Signed-off-by and Fixes tags. - Change the error message for the timeout to be more clear. Fixes spurious Vulkan CTS failures in: dEQP-VK.binding_model.descriptorset_random.* Fixes: d223f98f02099 ("drm/v3d: Add support for compute shader dispatch.") Signed-off-by: Iago Toral Quiroga Reviewed-by: Melissa Wen Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210915100507.3945-1-itoral@igalia.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/v3d/v3d_gem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 5689da118197e..772b5831bcc6f 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -197,8 +197,8 @@ v3d_clean_caches(struct v3d_dev *v3d) V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL, V3D_L2TCACTL_TMUWCF); if (wait_for(!(V3D_CORE_READ(core, V3D_CTL_L2TCACTL) & - V3D_L2TCACTL_L2TFLS), 100)) { - DRM_ERROR("Timeout waiting for L1T write combiner flush\n"); + V3D_L2TCACTL_TMUWCF), 100)) { + DRM_ERROR("Timeout waiting for TMU write combiner flush\n"); } mutex_lock(&v3d->cache_clean_lock); -- 2.33.0