From 41aad816d7061f6cc3d92f39fc655f034bbfb1c0 Mon Sep 17 00:00:00 2001 From: Gajanan Bhat Date: Wed, 16 Jul 2014 18:24:03 +0530 Subject: [PATCH] drm/i915: Update DDL only for current CRTC Instead of looping through all CRTCs, update DDL for current CRTC for which watermark is being updated. CHV is confirmed to have precision of 32/64 which is same as VLV. Reviewed-by: Imre Deak Signed-off-by: Gajanan Bhat Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 2573c6967559..0feeae845f12 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -1310,24 +1310,17 @@ static bool vlv_compute_drain_latency(struct drm_device *dev, * latency value. */ -static void vlv_update_drain_latency(struct drm_device *dev) +static void vlv_update_drain_latency(struct drm_crtc *crtc) { + struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; - enum pipe pipe; - - for_each_pipe(pipe) { - int plane_prec, plane_dl; - int cursor_prec, cursor_dl; - int plane_prec_mult, cursor_prec_mult; + enum pipe pipe = to_intel_crtc(crtc)->pipe; + int plane_prec, plane_dl; + int cursor_prec, cursor_dl; + int plane_prec_mult, cursor_prec_mult; - if (!vlv_compute_drain_latency(dev, pipe, &plane_prec_mult, &plane_dl, - &cursor_prec_mult, &cursor_dl)) - continue; - - /* - * FIXME CHV spec still lists 16 and 32 as the precision - * values. Need to figure out if spec is outdated or what. - */ + if (vlv_compute_drain_latency(dev, pipe, &plane_prec_mult, &plane_dl, + &cursor_prec_mult, &cursor_dl)) { cursor_prec = (cursor_prec_mult == DRAIN_LATENCY_PRECISION_64) ? DDL_CURSOR_PRECISION_64 : DDL_CURSOR_PRECISION_32; plane_prec = (plane_prec_mult == DRAIN_LATENCY_PRECISION_64) ? @@ -1352,7 +1345,7 @@ static void valleyview_update_wm(struct drm_crtc *crtc) unsigned int enabled = 0; bool cxsr_enabled; - vlv_update_drain_latency(dev); + vlv_update_drain_latency(crtc); if (g4x_compute_wm0(dev, PIPE_A, &valleyview_wm_info, latency_ns, -- 2.30.2