Message ID | 1279572368-24105-1-git-send-email-chris@chris-wilson.co.uk (mailing list archive) |
---|---|
State | Deferred, archived |
Headers | show |
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9fa6711..1173a77 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2752,8 +2752,14 @@ static unsigned long intel_calculate_wm(unsigned long clock_in_khz, /* Don't promote wm_size to unsigned... */ if (wm_size > (long)wm->max_wm) wm_size = wm->max_wm; - if (wm_size <= 0) + if (wm_size <= 0) { wm_size = wm->default_wm; + DRM_ERROR("Insufficient FIFO for plane, expect flickering:" + " entries required = %ld, available = %lu.\n", + entries_required + wm->guard_size, + wm->fifo_size); + } + return wm_size; }