From: Thierry Reding <thierry.reding@gmail.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>,
Joerg Roedel <jroedel@suse.de>, David Airlie <airlied@linux.ie>,
Jonathan Hunter <jonathanh@nvidia.com>,
dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org
Subject: Re: [PATCH 10/13] drm/tegra: Use sychronized interface of the IOMMU-API
Date: Thu, 17 Aug 2017 15:28:47 +0200 [thread overview]
Message-ID: <20170817132847.GA6854@ulmo> (raw)
In-Reply-To: <1502974596-23835-11-git-send-email-joro@8bytes.org>
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On Thu, Aug 17, 2017 at 02:56:33PM +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: David Airlie <airlied@linux.ie>
> Cc: Jonathan Hunter <jonathanh@nvidia.com>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-tegra@vger.kernel.org
> Signed-off-by: Joerg Roedel <jroedel@suse.de>
> ---
> drivers/gpu/drm/tegra/drm.c | 6 +++---
> drivers/gpu/drm/tegra/gem.c | 6 +++---
> 2 files changed, 6 insertions(+), 6 deletions(-)
Acked-by: Thierry Reding <treding@nvidia.com>
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next prev parent reply other threads:[~2017-08-17 13:28 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-17 12:56 [PATCH 00/13] Introduce IOMMU-API TLB Flushing Interface Joerg Roedel
[not found] ` <1502974596-23835-1-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 12:56 ` [PATCH 01/13] iommu/amd: Rename a few flush functions Joerg Roedel
2017-08-17 12:56 ` [PATCH 02/13] iommu: Introduce Interface for IOMMU TLB Flushing Joerg Roedel
[not found] ` <1502974596-23835-3-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 16:32 ` Will Deacon
[not found] ` <20170817163234.GB30719-5wv7dgnIgG8@public.gmane.org>
2017-08-17 16:50 ` Joerg Roedel
[not found] ` <20170817165040.GK2853-l3A5Bk7waGM@public.gmane.org>
2017-08-17 17:17 ` Will Deacon
2017-08-17 21:20 ` Joerg Roedel
[not found] ` <20170817212054.GL2853-l3A5Bk7waGM@public.gmane.org>
2017-08-18 15:16 ` Will Deacon
2017-08-17 12:56 ` [PATCH 03/13] vfio/type1: Use sychronized interface of the IOMMU-API Joerg Roedel
2017-08-17 12:56 ` [PATCH 04/13] iommu/dma: " Joerg Roedel
2017-08-17 12:56 ` [PATCH 05/13] arm: dma-mapping: " Joerg Roedel
2017-08-17 12:56 ` [PATCH 06/13] drm/etnaviv: " Joerg Roedel
[not found] ` <1502974596-23835-7-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 13:32 ` Lucas Stach
[not found] ` <1502976758.19806.25.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2017-08-17 13:45 ` Joerg Roedel
2017-08-17 14:03 ` Lucas Stach
[not found] ` <1502978634.19806.27.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2017-08-17 14:18 ` Joerg Roedel
[not found] ` <20170817141858.GG16908-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 14:30 ` Lucas Stach
2017-08-17 14:35 ` Joerg Roedel
2017-08-17 12:56 ` [PATCH 08/13] drm/nouveau/imem/gk20a: " Joerg Roedel
2017-08-17 12:56 ` [PATCH 10/13] drm/tegra: " Joerg Roedel
2017-08-17 13:28 ` Thierry Reding [this message]
2017-08-17 12:56 ` [PATCH 11/13] gpu: host1x: " Joerg Roedel
[not found] ` <1502974596-23835-12-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 13:29 ` Thierry Reding
2017-08-17 14:35 ` [PATCH 00/13] Introduce IOMMU-API TLB Flushing Interface Alex Williamson
2017-08-17 14:43 ` Joerg Roedel
[not found] ` <20170817144308.GI16908-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 14:54 ` Alex Williamson
[not found] ` <20170817085407.3de4e755-DGNDKt5SQtizQB+pC5nmwQ@public.gmane.org>
2017-08-17 15:22 ` Joerg Roedel
[not found] ` <20170817152220.GK16908-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-23 12:09 ` Joerg Roedel
2017-08-17 12:56 ` [PATCH 07/13] drm/msm: Use sychronized interface of the IOMMU-API Joerg Roedel
2017-08-19 15:39 ` Rob Clark
2017-08-17 12:56 ` [PATCH 09/13] drm/rockchip: " Joerg Roedel
2017-08-17 12:56 ` [PATCH 12/13] IB/usnic: " Joerg Roedel
2017-08-17 12:56 ` [PATCH 13/13] remoteproc: " Joerg Roedel
2017-08-24 19:06 ` Bjorn Andersson
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