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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-01-02 22:25:00 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-01-03 20:48:00 +0300 |
| commit | c68ce69910e3b292afc138e12725399d3b0fb347 (patch) | |
| tree | bfba7f84cc514ac8a7921e6493d90e0a41d925e4 | |
| parent | 6f25d0be180f5b4713c6fb5a6619fe11dd1dacd9 (diff) | |
| download | linux-c68ce69910e3b292afc138e12725399d3b0fb347.tar.xz | |
drm/i915: Assert we do not try to wait on an invalid seqno
We should never insert the invalid seqno into the wait tree, so assert
we do not.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102192500.20364-1-chris@chris-wilson.co.uk
| -rw-r--r-- | drivers/gpu/drm/i915/intel_breadcrumbs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c index 58c624f982d9..86acac010bb8 100644 --- a/drivers/gpu/drm/i915/intel_breadcrumbs.c +++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c @@ -396,6 +396,8 @@ static bool __intel_engine_add_wait(struct intel_engine_cs *engine, bool first, armed; u32 seqno; + GEM_BUG_ON(!wait->seqno); + /* Insert the request into the retirement ordered list * of waiters by walking the rbtree. If we are the oldest * seqno in the tree (the first to be retired), then |