From 7d7569ac3336b3b91a3700295c2af5610cb01d67 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 9 Feb 2020 13:19:16 +0000 Subject: [PATCH] drm/i915/execlists: Ignore tracek for nop process_csb Recording the frequent inspection of CSB head/tail when there is expected to be no update adds noise to the debug trace. (Not entirely useless, but since we know the sequence of function calls, we can surmise the function was called -- so redundant.) Signed-off-by: Chris Wilson Cc: Mika Kuoppala Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20200209131922.180287-2-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/gt/intel_lrc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 21385070ad15..230470c58ec9 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -2248,7 +2248,6 @@ static void process_csb(struct intel_engine_cs *engine) */ head = execlists->csb_head; tail = READ_ONCE(*execlists->csb_write); - ENGINE_TRACE(engine, "cs-irq head=%d, tail=%d\n", head, tail); if (unlikely(head == tail)) return; @@ -2262,6 +2261,7 @@ static void process_csb(struct intel_engine_cs *engine) */ rmb(); + ENGINE_TRACE(engine, "cs-irq head=%d, tail=%d\n", head, tail); do { bool promote; -- 2.11.0