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 <ch...@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com>
---
drivers/gpu/drm/i915/intel_engine_cs.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c
b/drivers/gpu/drm/i915/intel_engine_cs.c
index fedb839dff61..e676e345c453 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1726,6 +1726,11 @@ void intel_engine_dump(struct intel_engine_cs *engine,
struct drm_printer *m)
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" : "");
+ 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();
--
2.15.0.rc2
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