From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH] mmc: tegra: Mark 64 bit dma broken on Tegra186 Date: Fri, 8 Sep 2017 23:59:22 +0200 Message-ID: <20170908215636.GA4996@aiwendil> References: <1504900113-8983-1-git-send-email-vdumpa@nvidia.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="MGYHOYXEY6WxJCY8" Return-path: Content-Disposition: inline In-Reply-To: <1504900113-8983-1-git-send-email-vdumpa-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Krishna Reddy Cc: adrian.hunter-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-mmc@vger.kernel.org --MGYHOYXEY6WxJCY8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 08, 2017 at 12:48:33PM -0700, Krishna Reddy wrote: > SDHCI controllers on Tegra186 support 40 bit addressing. > IOVA addresses are 48-bit wide on Tegra186. > SDHCI host common code sets dma mask as either 32-bit or 64-bit. > To avoid access issues when SMMU is enabled, disable 64-bit dma. >=20 > Signed-off-by: Krishna Reddy > --- > drivers/mmc/host/sdhci-tegra.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) This matches a local commit: Tested-by: Thierry Reding Acked-by: Thierry Reding --MGYHOYXEY6WxJCY8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAlmzEroACgkQ3SOs138+ s6Fq6BAAnz1Z8lTAr5WO186Zc67R4hxduaU+5twItLGrzfUg9EXqE0uC8Zqg6fLn BRRKPZ4kl0HqXRn0cOz7XB5bioSO4L4WbUB7so+JrcEMw+FKsGsjiDQ8MaP4N6L1 Uub54jcqeHAcKpTJnW9k4AzdMrOInvDR5dTeGRop2rgA1jTvcrxZ78H8WnNJQPmB NVvah1pS0OgkIAz9582+rW7LVa7B62QgEZvjJ26DXji1I2lSTwUe7mlB+H1dn/FF +cwCXDV38OR7qMk3tMMuBclebyHl4iQHbmeFvD6iglXu0WmjMXzoKEjLa1RF+Y75 j2AnHOn7lZrBL0SDiod6wmKaZq5fL4P284OZYHc0rf+UWnqtyXiP9SRR6Lc9z5o6 Vz8aMyLfZCq43TsnXtOvYs6J7PGXLaIPuXF+0jBoevv8nZ74MLQ25P9o5TsHwCYJ 8WfWDfO+mXanLZv3AEOjlNSc4cikqEXaZQHM3Hp2XJA3k358i5hzV8iEmZwd4bWt e9G554l+zwE1lleyEHafV4b/dxhAVpxuGUWIANkpwlvsSaHwZLfvilJBLhz/WViL jxDpFhK+qYsBpCrGPaKjpdce3l7Yrye80LBdsM5jO+UQOOwWolQFU6v3B7wN3DsR RrspNVdh7pinD3tav7a3noTUtBbMbvn9vwb9yFfsowSUGkLIlz0= =vZnT -----END PGP SIGNATURE----- --MGYHOYXEY6WxJCY8--