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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: Chris 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: Mika Kuoppala <mika.kuoppala@linux.intel.com>
hifive-unleashed-5.1
Chris Wilson 2017-10-26 12:50:48 +01:00
parent bad7b7e674
commit 3c75de5b98
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/i915/intel_engine_cs.c
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@ -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();