[Intel-gfx] [PATCH 4/5] drm/i915: Increase initial busyspin limit

[Chris Wilson]

Here we bump the busyspin for the current request to avoid sleeping and
the cost of both idling and downclocking the CPU.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Sagar Kamble <sagar.a.kamble at intel.com>
Cc: Eero Tamminen <eero.t.tamminen at intel.com>
Cc: Francisco Jerez <currojerez at riseup.net>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Ben Widawsky <ben at bwidawsk.net>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Cc: Michał Winiarski <michal.winiarski at intel.com>
---
 drivers/gpu/drm/i915/Kconfig.profile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/Kconfig.profile b/drivers/gpu/drm/i915/Kconfig.profile
index de394dea4a14..54e0ba4051e7 100644
--- a/drivers/gpu/drm/i915/Kconfig.profile
+++ b/drivers/gpu/drm/i915/Kconfig.profile
@@ -1,6 +1,6 @@
 config DRM_I915_SPIN_REQUEST_IRQ
 	int
-	default 5 # microseconds
+	default 250 # microseconds
 	help
 	  Before sleeping waiting for a request (GPU operation) to complete,
 	  we may spend some time polling for its completion. As the IRQ may
-- 
2.18.0