From patchwork Wed Jan 13 18:33:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 362231 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 328FEC4332E for ; Wed, 13 Jan 2021 18:34:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E438F205CA for ; Wed, 13 Jan 2021 18:34:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728479AbhAMSe0 (ORCPT ); Wed, 13 Jan 2021 13:34:26 -0500 Received: from relay05.th.seeweb.it ([5.144.164.166]:38807 "EHLO relay05.th.seeweb.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728441AbhAMSeZ (ORCPT ); Wed, 13 Jan 2021 13:34:25 -0500 Received: from IcarusMOD.eternityproject.eu (unknown [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r2.th.seeweb.it (Postfix) with ESMTPSA id 18CA83F1D8; Wed, 13 Jan 2021 19:33:43 +0100 (CET) From: AngeloGioacchino Del Regno To: robdclark@gmail.com Cc: sean@poorly.run, airlied@linux.ie, daniel@ffwll.ch, jcrouse@codeaurora.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, konrad.dybcio@somainline.org, marijn.suijten@somainline.org, martin.botka@somainline.org, AngeloGioacchino Del Regno Subject: [PATCH v3 5/7] drm/msm/a5xx: Fix VPC protect value in gpu_write() Date: Wed, 13 Jan 2021 19:33:37 +0100 Message-Id: <20210113183339.446239-6-angelogioacchino.delregno@somainline.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210113183339.446239-1-angelogioacchino.delregno@somainline.org> References: <20210113183339.446239-1-angelogioacchino.delregno@somainline.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Konrad Dybcio The upstream API for some reason uses logbase2 instead of just passing the argument as-is, whereas downstream CAF kernel does the latter. Hence, a mistake has been made when porting: 4 is the value that's supposed to be passed, but log2(4) = 2. Changing the value to 16 (= 2^4) fixes the issue. Signed-off-by: Konrad Dybcio Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Jordan Crouse --- drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 66980f4cd93e..24ab51bb5a01 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -821,7 +821,7 @@ static int a5xx_hw_init(struct msm_gpu *gpu) /* VPC */ gpu_write(gpu, REG_A5XX_CP_PROTECT(14), ADRENO_PROTECT_RW(0xE68, 8)); - gpu_write(gpu, REG_A5XX_CP_PROTECT(15), ADRENO_PROTECT_RW(0xE70, 4)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(15), ADRENO_PROTECT_RW(0xE70, 16)); /* UCHE */ gpu_write(gpu, REG_A5XX_CP_PROTECT(16), ADRENO_PROTECT_RW(0xE80, 16));