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From: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Suravee Suthikulpanit
	<Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>,
	Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 11/13] gpu: host1x: Use sychronized interface of the IOMMU-API
Date: Thu, 17 Aug 2017 15:29:04 +0200	[thread overview]
Message-ID: <20170817132904.GB6854@ulmo> (raw)
In-Reply-To: <1502974596-23835-12-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>

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On Thu, Aug 17, 2017 at 02:56:34PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
> 
> 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-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Signed-off-by: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
> ---
>  drivers/gpu/host1x/cdma.c | 6 +++---
>  drivers/gpu/host1x/job.c  | 6 +++---
>  2 files changed, 6 insertions(+), 6 deletions(-)

Acked-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

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WARNING: multiple messages have this Message-ID (diff)
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>,
	dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org
Subject: Re: [PATCH 11/13] gpu: host1x: Use sychronized interface of the IOMMU-API
Date: Thu, 17 Aug 2017 15:29:04 +0200	[thread overview]
Message-ID: <20170817132904.GB6854@ulmo> (raw)
In-Reply-To: <1502974596-23835-12-git-send-email-joro@8bytes.org>

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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>

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  parent reply	other threads:[~2017-08-17 13:29 UTC|newest]

Thread overview: 59+ 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
2017-08-17 12:56 ` 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
     [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     ` Joerg Roedel
2017-08-17 12:56   ` [PATCH 02/13] iommu: Introduce Interface for IOMMU TLB Flushing Joerg Roedel
2017-08-17 12:56     ` Joerg Roedel
     [not found]     ` <1502974596-23835-3-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 16:32       ` Will Deacon
2017-08-17 16:32         ` Will Deacon
     [not found]         ` <20170817163234.GB30719-5wv7dgnIgG8@public.gmane.org>
2017-08-17 16:50           ` Joerg Roedel
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 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
2017-08-18 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     ` Joerg Roedel
2017-08-17 12:56   ` [PATCH 04/13] iommu/dma: " Joerg Roedel
2017-08-17 12:56     ` Joerg Roedel
2017-08-17 12:56   ` [PATCH 05/13] arm: dma-mapping: " Joerg Roedel
2017-08-17 12:56     ` Joerg Roedel
2017-08-17 12:56     ` Joerg Roedel
2017-08-17 12:56   ` [PATCH 06/13] drm/etnaviv: " Joerg Roedel
2017-08-17 12:56     ` Joerg Roedel
     [not found]     ` <1502974596-23835-7-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 13:32       ` Lucas Stach
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 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
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 14:30                       ` 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     ` Joerg Roedel
2017-08-17 12:56   ` [PATCH 10/13] drm/tegra: " Joerg Roedel
2017-08-17 12:56     ` Joerg Roedel
2017-08-17 13:28     ` Thierry Reding
2017-08-17 12:56   ` [PATCH 11/13] gpu: host1x: " Joerg Roedel
2017-08-17 12:56     ` Joerg Roedel
     [not found]     ` <1502974596-23835-12-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-17 13:29       ` Thierry Reding [this message]
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 14:35     ` 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
2017-08-17 14:54           ` Alex Williamson
     [not found]           ` <20170817085407.3de4e755-DGNDKt5SQtizQB+pC5nmwQ@public.gmane.org>
2017-08-17 15:22             ` Joerg Roedel
2017-08-17 15:22               ` Joerg Roedel
     [not found]               ` <20170817152220.GK16908-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-08-23 12:09                 ` Joerg Roedel
2017-08-23 12:09                   ` Joerg Roedel
2017-08-17 12:56 ` [PATCH 09/13] drm/rockchip: Use sychronized interface of the IOMMU-API Joerg Roedel
2017-08-17 12:56   ` 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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