From nobody Fri Dec 19 19:17:27 2025 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 369842C68F for ; Thu, 25 Jan 2024 11:07:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706180835; cv=none; b=ixg1CdcZcvGe7oJKBHlPLdxSO0ECR6xAJqQkQhP8EyZWcCr3PfxNpmMOjOKRY9dGqjqRDWR6vU9C7/sb9tBYE20BIpLSv/yF8GcRC7VMufFjd7yLzrMQSDJGxQmEeKm/dhsDg193P1qVi0gtvOYO+jMFB2JIbpWIHUAXgvtX9Ho= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706180835; c=relaxed/simple; bh=McGD4pKX+lTikkvY4uotVs8sgYfxPl8+m5FM/i91t2I=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=so+OoCMEXkKL296L0rDbxjcoG1xdbL621fxV1+sX/m9KHFzQR4A9UhaQwU0JlhRrhF+JSVpvjcDqyWSD99qdHo4XgfoRe8ocOeIBUrL/5HO7eI+2zkopJsVnyZ+7E5icJ8n7MDGzGgjpKcKcEhrn1QQzLnH0Y1L5apgyPg5MVT8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1rSxZg-0000EJ-EG; Thu, 25 Jan 2024 12:07:12 +0100 From: Philipp Zabel Date: Thu, 25 Jan 2024 12:07:08 +0100 Subject: [PATCH v2 3/3] drm/etnaviv: Disable SH_EU clock gating on VIPNano-Si+ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240125-etnaviv-npu-v2-3-ba23c9a32be1@pengutronix.de> References: <20240125-etnaviv-npu-v2-0-ba23c9a32be1@pengutronix.de> In-Reply-To: <20240125-etnaviv-npu-v2-0-ba23c9a32be1@pengutronix.de> To: Lucas Stach , Russell King , Christian Gmeiner , David Airlie , Daniel Vetter Cc: etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Philipp Zabel X-Mailer: b4 0.13-dev-f0463 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::54 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Disable SH_EU clock gating for the VIPNano-Si+ NPU on i.MX8MP and for other affected core revisions. Taken from linux-imx lf-6.1.36-2.1.0, specifically [1]. [1] https://github.com/nxp-imx/linux-imx/blob/lf-6.1.36-2.1.0/drivers/mxc/g= pu-viv/hal/kernel/arch/gc_hal_kernel_hardware.c#L2747-L2761 Signed-off-by: Philipp Zabel --- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnavi= v/etnaviv_gpu.c index c61d50dd3829..c669419b3ae3 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -643,6 +643,12 @@ static void etnaviv_gpu_enable_mlcg(struct etnaviv_gpu= *gpu) pmc |=3D VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SE | VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA; =20 + /* Disable SH_EU clock gating on affected core revisions. */ + if (etnaviv_is_model_rev(gpu, 0x8000, 0x7200) || + etnaviv_is_model_rev(gpu, 0x8000, 0x8002) || + etnaviv_is_model_rev(gpu, 0x9200, 0x6304)) + pmc |=3D VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SH_EU; + pmc |=3D VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_HZ; pmc |=3D VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_EZ; =20 --=20 2.39.2