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Commit 3c75de5b authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Include RING_MODE when dumping the engine state 



Knowing the RING_MODE flags is useful for checking the state of the
engine, such as whether the CS is idle after trying to stop the engines
before reset.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171026115048.20144-1-chris@chris-wilson.co.uk


Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
parent bad7b7e6

drivers/gpu/drm/i915/intel_engine_cs.c

+7 −2
Original line number Diff line number Diff line
@@ -1723,9 +1723,14 @@ void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m) 
	drm_printf(m, "\tRING_TAIL:  0x%08x [0x%08x]\n",

		   I915_READ(RING_TAIL(engine->mmio_base)) & TAIL_ADDR,

		   rq ? rq->ring->tail : 0);

	drm_printf(m, "\tRING_CTL:   0x%08x [%s]\n",

	drm_printf(m, "\tRING_CTL:   0x%08x%s\n",

		   I915_READ(RING_CTL(engine->mmio_base)),

		   I915_READ(RING_CTL(engine->mmio_base)) & (RING_WAIT | RING_WAIT_SEMAPHORE) ? "waiting" : "");

		   I915_READ(RING_CTL(engine->mmio_base)) & (RING_WAIT | RING_WAIT_SEMAPHORE) ? " [waiting]" : "");

	if (INTEL_GEN(engine->i915) > 2) {

		drm_printf(m, "\tRING_MODE:  0x%08x%s\n",

			   I915_READ(RING_MI_MODE(engine->mmio_base)),

			   I915_READ(RING_MI_MODE(engine->mmio_base)) & (MODE_IDLE) ? " [idle]" : "");

	}



	rcu_read_unlock();