drm/i915: Report execlists irq bit in debugfs

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@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-1-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index c25f42c60d611d30c1b5e69891dabc0a450651fd..ea50c4a1efae488575d1605ac91c25305d09ab1a 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3325,8 +3325,10 @@ 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, write %d\n",
-                                  read, write);
+                       seq_printf(m, "\tExeclist CSB read %d, write %d, interrupt posted? %s\n",
+                                  read, write,
+                                  yesno(test_bit(ENGINE_IRQ_EXECLIST,
+                                                 &engine->irq_posted)));
                        if (read >= GEN8_CSB_ENTRIES)
                                read = 0;
                        if (write >= GEN8_CSB_ENTRIES)