From: Thierry Reding <thierry.reding@gmail.com>
To: Jon Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Subject: Re: [PATCH] arm64: tegra: Disable ISO SMMU for Tegra194
Date: Thu, 27 Jan 2022 18:38:38 +0100 [thread overview]
Message-ID: <YfLYnujnXl3PW+MM@orome> (raw)
In-Reply-To: <20220113143152.167583-1-jonathanh@nvidia.com>
[-- Attachment #1: Type: text/plain, Size: 838 bytes --]
On Thu, Jan 13, 2022 at 02:31:52PM +0000, Jon Hunter wrote:
> Commit e762232f9466 ("arm64: tegra: Add ISO SMMU controller for Tegra194")
> add the ISO SMMU for display devices on Tegra194. The SMMU is enabled by
> default but no hooked up to the display controllers yet because we do not
> have a way to pass frame-buffer memory from the bootloader to the kernel.
> However, even though the SMMU is not hooked up to the display controllers
> SMMU faults are being seen if a display is connected. Therefore, keep the
> ISO SMMU disabled by default for now.
>
> Fixes: e762232f9466 ("arm64: tegra: Add ISO SMMU controller for Tegra194")
> Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
> ---
> arch/arm64/boot/dts/nvidia/tegra194.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks.
Thierry
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
prev parent reply other threads:[~2022-01-27 17:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-13 14:31 [PATCH] arm64: tegra: Disable ISO SMMU for Tegra194 Jon Hunter
2022-01-27 17:38 ` Thierry Reding [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YfLYnujnXl3PW+MM@orome \
--to=thierry.reding@gmail.com \
--cc=jonathanh@nvidia.com \
--cc=linux-tegra@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).