Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1714026

Re: [PATCH 11/13] gpu: host1x: Use sychronized interface of the IOMMU-API

From Thierry Reding <thierry.reding@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH 11/13] gpu: host1x: Use sychronized interface of the IOMMU-API
Date 2017-08-17 15:30 +0200
Message-ID <uft22-5re-3@gated-at.bofh.it> (permalink)
References <ufsyZ-4YZ-7@gated-at.bofh.it> <ufsz0-4YZ-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


[Multipart message — attachments visible in raw view] - view raw

On Thu, Aug 17, 2017 at 02:56:34PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@suse.de>
> 
> The map and unmap functions of the IOMMU-API changed their
> semantics: They do no longer guarantee that the hardware
> TLBs are synchronized with the page-table updates they made.
> 
> To make conversion easier, new synchronized functions have
> been introduced which give these guarantees again until the
> code is converted to use the new TLB-flush interface of the
> IOMMU-API, which allows certain optimizations.
> 
> But for now, just convert this code to use the synchronized
> functions so that it will behave as before.
> 
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-tegra@vger.kernel.org
> Signed-off-by: Joerg Roedel <jroedel@suse.de>
> ---
>  drivers/gpu/host1x/cdma.c | 6 +++---
>  drivers/gpu/host1x/job.c  | 6 +++---
>  2 files changed, 6 insertions(+), 6 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

[PATCH 11/13] gpu: host1x: Use sychronized interface of the IOMMU-API Joerg Roedel <joro@8bytes.org> - 2017-08-17 15:00 +0200
  Re: [PATCH 11/13] gpu: host1x: Use sychronized interface of the  IOMMU-API Thierry Reding <thierry.reding@gmail.com> - 2017-08-17 15:30 +0200

csiph-web