~jiffie and a few usecs is 3 orders of magnitude different. A bit
much. This was changed in
commit ca5b721e238226af1d767103ac852aeb8e4c0764
Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Date: Fri Dec 11 11:32:58 2015 +0000
drm/i915: Limit the busy wait on requests to 5us not 10ms!
But probably missed the comment since the change was non-local to the
comment.
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_request.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index 3fecb8f0e041..1c7307f219f9 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -644,7 +644,7 @@ int i915_wait_request(struct drm_i915_gem_request *req,
if (IS_RPS_CLIENT(rps) && INTEL_GEN(req->i915) >= 6)
gen6_rps_boost(req->i915, rps, req->emitted_jiffies);
- /* Optimistic spin for the next ~jiffie before touching IRQs */
+ /* Optimistic spin for the next usecs before touching IRQs */
if (i915_spin_request(req, state, 5))
goto complete;
--
2.8.1
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