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| author | Chris Wilson <[email protected]> | 2020-10-19 17:50:05 +0100 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2020-10-21 08:32:28 -0400 |
| commit | 3da3c5c1c9825c24168f27b021339e90af37e969 (patch) | |
| tree | 91b0c84294244df6eb53b434507da8400a3b1711 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | b8cff311a42df4f15d6432583573d828b5c7b12a (diff) | |
drm/i915: Exclude low pages (128KiB) of stolen from use
The GPU is trashing the low pages of its reserved memory upon reset. If
we are using this memory for ringbuffers, then we will dutiful resubmit
the trashed rings after the reset causing further resets, and worse. We
must exclude this range from our own use. The value of 128KiB was found
by empirical measurement (and verified now with a selftest) on gen9.
Signed-off-by: Chris Wilson <[email protected]>
Cc: [email protected]
Reviewed-by: Mika Kuoppala <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit d3606757e611fbd48bb239e8c2fe9779b3f50035)
Signed-off-by: Rodrigo Vivi <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions