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| author | Chris Wilson <[email protected]> | 2019-09-09 12:00:08 +0100 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2019-09-10 11:49:11 +0100 |
| commit | cec5ca08e36fd18d2939b98055346b3b06f56c6c (patch) | |
| tree | 0431e6a15df49b3887e5750b24901c87a87e60a0 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 0efa99dd58754d23e884b9ba41cd601f01b58c3d (diff) | |
drm/i915: Perform GGTT restore much earlier during resume
As soon as we re-enable the various functions within the HW, they may go
off and read data via a GGTT offset. Hence, if we have not yet restored
the GGTT PTE before then, they may read and even *write* random locations
in memory.
Detected by DMAR faults during resume.
Signed-off-by: Chris Wilson <[email protected]>
Cc: Mika Kuoppala <[email protected]>
Cc: Martin Peres <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: [email protected]
Reviewed-by: Mika Kuoppala <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
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