From: Joerg Roedel <joro@8bytes.org>
To: "Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Suspend/Resume problems with radeon driver
Date: Fri, 9 Oct 2015 17:28:53 +0200 [thread overview]
Message-ID: <20151009152853.GD27420@8bytes.org> (raw)
Hi Alex, Christian,
I recently tested v4.3-rc4 on one of my AMD IOMMU boxes with a radeon
GPU in it:
mars:~ # lspci -k -s 08:00.0
08:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Juniper XT [Radeon HD 5770]
Subsystem: PC Partner Limited / Sapphire Technology Device 1482
Kernel driver in use: radeon
Kernel modules: radeon
When the box is suspended-to-disk, I get a lot of IO_PAGE_FAULTs from
the IOMMU on dma-addresses that either the IOMMU driver would never
return (<4k and >4G) or that were not returned by the driver (I did some
tracing to verify that). This does _not_ happen on suspend-to-mem.
Any ideas what might causing this? Let me know if you need more
information.
Joerg
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reply other threads:[~2015-10-09 15:28 UTC|newest]
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