Re: [PATCH 1/2] drm/i915: Report execlists irq bit in debugfs

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Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:

> 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@xxxxxxxxxxxxxxxxxx>
> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>

> ---
>  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 580bd4f4a49e..9fdafed9a601 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -3390,8 +3390,10 @@ 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)
> -- 
> 2.13.2
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