From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [GIT PULL 5/5] arm64: tegra: Device tree changes for v4.19-rc1 Date: Thu, 9 Aug 2018 12:21:04 +0200 Message-ID: <20180809102104.GB21639@ulmo> References: <20180712154128.22705-1-thierry.reding@gmail.com> <20180712154128.22705-6-thierry.reding@gmail.com> <20180714212210.at4b2gcpopsznyxx@localhost> <20180803104318.GA28546@ulmo> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1208241788314556288==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Anthony Eden Cc: Jon Hunter , linux-tegra@vger.kernel.org, arm@kernel.org, Olof Johansson , Mikko Perttunen , linux-arm-kernel@lists.infradead.org List-Id: linux-tegra@vger.kernel.org --===============1208241788314556288== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="6sX45UoQRIJXqkqR" Content-Disposition: inline --6sX45UoQRIJXqkqR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Aug 03, 2018 at 07:26:04AM -0400, Anthony Eden wrote: > Mesa support aside- if I start a computationally intensive job on the > Jetson TX2 like building the Linux kernel on all cores, it will lock > up. My only work around has been to disable the Denver CPU's. I don't > think the tegra186 has upstream support to control the fan on the > Jetson TX2, could this be a thermal problem? Yes, I suppose this could be a thermal problem. Or it could be something else entirely. We do support CPU frequency scaling on Tegra X2, so what you could do is keep the Denver CPUs enabled, but set the powersave CPU frequency governor. That way it should use all the CPUs but at a lower clock rate, which should also be able to avoid any thermal issues. This could help determine whether or not the problem is thermal or something else. Also adding Mikko on Cc who wrote the Tegra186 driver, maybe he's aware of any issues. Thierry --6sX45UoQRIJXqkqR Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAltsFY0ACgkQ3SOs138+ s6Hu+w/+LIjDv7ziEb6UqYVi2TTMn/x+yFp1UcIrWa2XOz+nmRZ8oXUL6zrqVSEN Q1PsQCwHPBDDGWghus+XMWDf60f2Ew4qY6vMEtdfIW8yH/xFChzAaxWE3c5iAGBp q2bitc1qIhjUMmXx+3I5e6bYaRmnZTNej2VPeRJunGfOaiXwFzyW9JFDBWy05tcc q9Ul6GIzDJvx3Nj9V2IJFxHX2O6Z7183ls05DJFkXdtWatjhqASi8f6VnLELZ3Si psytrWEfifBFosQm0whKQd0lxAclgGlV3bU3A9YUhsdbS60U32HsgZKTdex7QDvM WXjspS8lkVQ0TsJIMTLabEgfaVm6EZM09Gdp7IYHt30ZpGvDI/HT7GZTLzEIP7TC AfaCNQ5r4u6DPZKn85ljLzi7NVU92CJ25teXmoFOfYHclbLn99njimkA/6OACn8H NlwvGVOAW1ENrty0QLyrfP3nzSTNH6tTs+nb9/PKC14eT0KGEee6BBE50skMTCao Md0SNyEkGjGM/ogJO3CxdQkGet23Wb88g2JDYX0wb1+y1y7xNw7kQZsegDt6YRLh Rt/2u2B4U27v0uTiVxq2FXhrqZGKIcxZRV3ZIKfcsrHqTYBePspM10byhd8VMoum XSuBwny0/eWLYgIEUQeQZI1NCdEVYyFcs5S1ggGeAjfM2JEq5aM= =VT9r -----END PGP SIGNATURE----- --6sX45UoQRIJXqkqR-- --===============1208241788314556288== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============1208241788314556288==--