The transition minimum is 14 blocks for gens 9 and 10, and 4 blocks for gen 11. This minimum value is supposed to be added to the configurable trans_amount. This matches both BSpec and additional information provided by our HW engineers. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_pm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 910551e04d16..cab86690a0ba 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4878,8 +4878,8 @@ static void skl_compute_transition_wm(struct intel_crtc_state *cstate, if (!dev_priv->ipc_enabled) goto exit; - trans_min = 0; - if (INTEL_GEN(dev_priv) >= 10) + trans_min = 14; + if (INTEL_GEN(dev_priv) >= 11) trans_min = 4; trans_offset_b = trans_min + trans_amount; -- 2.14.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
