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drm/i915: Show waiter's status on engine dump

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When showing the list of waiters, include the task's status so that we
can tell if they have been woken up and are waiting for the CPU, or if
they are still waiting to be woken.

v2: task_state_to_char()

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181121151653.24595-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2018-11-21 15:16:53 +00:00
parent f43348a3db
commit aa6a65daca
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/intel_engine_cs.c
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@ -1562,8 +1562,10 @@ void intel_engine_dump(struct intel_engine_cs *engine,
for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
struct intel_wait *w = rb_entry(rb, typeof(*w), node);
drm_printf(m, "\t%s [%d] waiting for %x\n",
w->tsk->comm, w->tsk->pid, w->seqno);
drm_printf(m, "\t%s [%d:%c] waiting for %x\n",
w->tsk->comm, w->tsk->pid,
task_state_to_char(w->tsk),
w->seqno);
}
spin_unlock(&b->rb_lock);
local_irq_restore(flags);