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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-15 08:43:43 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-15 10:07:22 +0000 |
| commit | 52c126ee907f436fc871bfc15836b8011f6eb76d (patch) | |
| tree | d55cd4e9e560a6c5736d15a4f455b9ad2d819c06 /tools/perf/scripts/python | |
| parent | ff685975d97f8cb28e2fe4e6d90a71fd93244815 (diff) | |
| download | kernel-52c126ee907f436fc871bfc15836b8011f6eb76d.tar.gz | |
drm/i915: Always preallocate gen6/7 ppgtt
The hardware does not cope very well with us changing the PD within an
active context (the context must be idle for it to re-read the PD). As
we only check whether the page is idle before changing the entry (and on
through the PD tree), we cannot reliably replace PD entries on
gen6/gen7. To fully avoid changing the tree at runtime, preallocate it
on init.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170215084357.19977-9-chris@chris-wilson.co.uk
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions