From 3828296ad6242c25d2679d32a377b8e07c6b08c0 Mon Sep 17 00:00:00 2001 From: Tvrtko Ursulin Date: Thu, 16 Jun 2022 15:00:56 +0100 Subject: [PATCH] drm/i915/fdinfo: Don't show engine classes not present Stop displaying engine classes with no engines - it is not a huge problem if they are shown, since the values will correctly be all zeroes, but it does count as misleading. Signed-off-by: Tvrtko Ursulin Fixes: 055634e4b62f ("drm/i915: Expose client engine utilisation via fdinfo") Cc: Umesh Nerlige Ramappa Reviewed-by: Umesh Nerlige Ramappa Link: https://patchwork.freedesktop.org/patch/msgid/20220616140056.559074-1-tvrtko.ursulin@linux.intel.com (cherry picked from commit 9f1b1d0b2242171b2891a0398def233801601c14) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_drm_client.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c index 18d38cb..b09d1d3 100644 --- a/drivers/gpu/drm/i915/i915_drm_client.c +++ b/drivers/gpu/drm/i915/i915_drm_client.c @@ -116,8 +116,9 @@ show_client_class(struct seq_file *m, total += busy_add(ctx, class); rcu_read_unlock(); - seq_printf(m, "drm-engine-%s:\t%llu ns\n", - uabi_class_names[class], total); + if (capacity) + seq_printf(m, "drm-engine-%s:\t%llu ns\n", + uabi_class_names[class], total); if (capacity > 1) seq_printf(m, "drm-engine-capacity-%s:\t%u\n", -- 2.7.4