From 14a43062b90383f2cb0e634ff31f0bb7fa02cd1c Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 14 Nov 2018 23:07:22 +0200 Subject: [PATCH] drm/i915: Remove some useless zeroing on skl+ wm calculations MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We memset(0) the entire watermark struct the start, so there's no need to clear things later on. v2: Rebase due to some stale w/a removal Reviewed-by: Rodrigo Vivi Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181114210729.16185-7-ville.syrjala@linux.intel.com Reviewed-by: Matt Roper Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/i915/intel_pm.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index d94de52a8a76..54bf619b3185 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4746,10 +4746,8 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv, if (latency == 0) return level == 0 ? -EINVAL : 0; - if (!intel_wm_plane_visible(cstate, intel_pstate)) { - result->plane_en = false; + if (!intel_wm_plane_visible(cstate, intel_pstate)) return 0; - } /* Display WA #1141: kbl,cfl */ if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv) || @@ -4846,8 +4844,6 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv, if ((level > 0 && res_lines > 31) || res_blocks >= ddb_allocation || min_disp_buf_needed >= ddb_allocation) { - result->plane_en = false; - /* * If there are no valid level 0 watermarks, then we can't * support this display configuration. @@ -4949,15 +4945,15 @@ static void skl_compute_transition_wm(const struct intel_crtc_state *cstate, uint16_t wm0_sel_res_b, trans_offset_b, res_blocks; if (!cstate->base.active) - goto exit; + return; /* Transition WM are not recommended by HW team for GEN9 */ if (INTEL_GEN(dev_priv) <= 9) - goto exit; + return; /* Transition WM don't make any sense if ipc is disabled */ if (!dev_priv->ipc_enabled) - goto exit; + return; trans_min = 14; if (INTEL_GEN(dev_priv) >= 11) @@ -4996,11 +4992,7 @@ static void skl_compute_transition_wm(const struct intel_crtc_state *cstate, if (res_blocks < ddb_allocation) { trans_wm->plane_res_b = res_blocks; trans_wm->plane_en = true; - return; } - -exit: - trans_wm->plane_en = false; } static int __skl_build_plane_wm_single(struct skl_ddb_allocation *ddb, -- 2.30.2