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drm/i915/selftests: Provide stub reset functions 

If a test fails, we quite often mark the device as wedged. Provide the
stub functions so that we can wedge the mock device, and avoid exploding
on test failures.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109981
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190319214233.25498-3-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-03-19 21:42:33 +00:00
parent 1284ec9855
commit d315d4faf8
1 changed files with 36 additions and 0 deletions
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36
drivers/gpu/drm/i915/selftests/mock_engine.c
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@ -198,6 +198,37 @@ static void mock_submit_request(struct i915_request *request)
spin_unlock_irqrestore(&engine->hw_lock, flags); spin_unlock_irqrestore(&engine->hw_lock, flags);
} }
static void mock_reset_prepare(struct intel_engine_cs *engine)
{
}
static void mock_reset(struct intel_engine_cs *engine, bool stalled)
{
GEM_BUG_ON(stalled);
}
static void mock_reset_finish(struct intel_engine_cs *engine)
{
}
static void mock_cancel_requests(struct intel_engine_cs *engine)
{
struct i915_request *request;
unsigned long flags;
spin_lock_irqsave(&engine->timeline.lock, flags);
/* Mark all submitted requests as skipped. */
list_for_each_entry(request, &engine->timeline.requests, sched.link) {
if (!i915_request_signaled(request))
dma_fence_set_error(&request->fence, -EIO);
i915_request_mark_complete(request);
}
spin_unlock_irqrestore(&engine->timeline.lock, flags);
}
struct intel_engine_cs *mock_engine(struct drm_i915_private *i915, struct intel_engine_cs *mock_engine(struct drm_i915_private *i915,
const char *name, const char *name,
int id) int id)
@ -223,6 +254,11 @@ struct intel_engine_cs *mock_engine(struct drm_i915_private *i915,
engine->base.emit_fini_breadcrumb = mock_emit_breadcrumb; engine->base.emit_fini_breadcrumb = mock_emit_breadcrumb;
engine->base.submit_request = mock_submit_request; engine->base.submit_request = mock_submit_request;
engine->base.reset.prepare = mock_reset_prepare;
engine->base.reset.reset = mock_reset;
engine->base.reset.finish = mock_reset_finish;
engine->base.cancel_requests = mock_cancel_requests;
if (i915_timeline_init(i915, if (i915_timeline_init(i915,
&engine->base.timeline, &engine->base.timeline,
engine->base.name, engine->base.name,