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| author | Chris Wilson <[email protected]> | 2018-07-06 12:54:02 +0100 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2018-07-06 14:05:23 +0100 |
| commit | add00e6d896fab882e6115ed4908b2456f1b3a85 (patch) | |
| tree | eb79165a839f4ad807a463d3525cdf757e1387e5 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 03bbc508a312d9f4833f1cb0f7b2da7517787b61 (diff) | |
drm/i915: Flush the WCB following a WC write
If we have just completed a WC write, we must ensure that the WCB (Write
Combining Buffer) is flushed out to main memory before we can expect to
see the results. This is especially important when mixing WC with GTT as
the physical paths are different and cachelines are not naturally flushed.
Testcase: igt/drv_selftests/live_coherency #gdg
Signed-off-by: Chris Wilson <[email protected]>
Reviewed-by: Matthew Auld <[email protected]>
Reviewed-by: Tvrtko Ursulin <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions