drm/i915: Extend hangcheck timeout

... reduce the frequency of checking to further reduce the wakeups and
CPU overhead.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 5afcf2a..eb3f1f7 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -315,7 +315,7 @@ typedef struct drm_i915_private {
        int num_pipe;
 
        /* For hangcheck timer */
-#define DRM_I915_HANGCHECK_PERIOD 250 /* in ms */
+#define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
        struct timer_list hangcheck_timer;
        int hangcheck_count;
        uint32_t last_acthd;