[PATCH 09/74] drm/i915: Report execlists irq bit in debugfs

[Chris Wilson]

As part of the knowing whether there is outstanding data in the CSB,
also check whether there is an outstanding IRQ notification.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 1130e3c83c88..5b09bd4d0483 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3395,10 +3395,12 @@ static int i915_engine_info(struct seq_file *m, void *unused)
 			ptr = I915_READ(RING_CONTEXT_STATUS_PTR(engine));
 			read = GEN8_CSB_READ_PTR(ptr);
 			write = GEN8_CSB_WRITE_PTR(ptr);
-			seq_printf(m, "\tExeclist CSB read %d [%d cached], write %d [%d from hws]\n",
+			seq_printf(m, "\tExeclist CSB read %d [%d cached], write %d [%d from hws], interrupt posted? %s\n",
 				   read, engine->csb_head,
 				   write,
-				   intel_read_status_page(engine, intel_hws_csb_write_index(engine->i915)));
+				   intel_read_status_page(engine, intel_hws_csb_write_index(engine->i915)),
+				   yesno(test_bit(ENGINE_IRQ_EXECLIST,
+						  &engine->irq_posted)));
 			if (read >= GEN8_CSB_ENTRIES)
 				read = 0;
 			if (write >= GEN8_CSB_ENTRIES)
-- 
2.13.2