linux-kernel - Re: [PATCH 38/83] hsa/radeon: Workaround for a bug in amd

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Message-ID: <20140711084209.GA1958@8bytes.org>
Date:	Fri, 11 Jul 2014 10:42:09 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Oded Gabbay <oded.gabbay@...il.com>
Cc:	David Airlie <airlied@...ux.ie>,
	Alex Deucher <alexander.deucher@....com>,
	Jerome Glisse <j.glisse@...il.com>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	John Bridgman <John.Bridgman@....com>,
	Andrew Lewycky <Andrew.Lewycky@....com>,
	Oded Gabbay <oded.gabbay@....com>
Subject: Re: [PATCH 38/83] hsa/radeon: Workaround for a bug in amd_iommu

On Fri, Jul 11, 2014 at 12:53:54AM +0300, Oded Gabbay wrote:
> This patch creates a workaround for a bug in amd_iommu driver, where
> the driver doesn't save all necessary information when going to
> suspend.  The workaround removes a device from the IOMMU device list
> on suspend and register a resumed device in the IOMMU device list.
> 
> Signed-off-by: Oded Gabbay <oded.gabbay@....com>

Which bug do you workaround here? It needs to be fixed in the AMD IOMMU
driver instead of being wrapped in KFD.


	Joerg


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