From patchwork Thu Oct 4 23:15:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zanoni, Paulo R" X-Patchwork-Id: 10626975 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8059613BB for ; Thu, 4 Oct 2018 23:16:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 70585293AC for ; Thu, 4 Oct 2018 23:16:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6214D293C8; Thu, 4 Oct 2018 23:16:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1409B293AC for ; Thu, 4 Oct 2018 23:16:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6BD1D6E686; Thu, 4 Oct 2018 23:16:05 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 75FCB6E68A for ; Thu, 4 Oct 2018 23:16:04 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Oct 2018 16:16:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,342,1534834800"; d="scan'208";a="238604908" Received: from przanoni-mobl.jf.intel.com ([10.24.10.112]) by orsmga004.jf.intel.com with ESMTP; 04 Oct 2018 16:16:03 -0700 From: Paulo Zanoni To: intel-gfx@lists.freedesktop.org Date: Thu, 4 Oct 2018 16:15:55 -0700 Message-Id: <20181004231600.14101-2-paulo.r.zanoni@intel.com> X-Mailer: git-send-email 2.14.4 In-Reply-To: <20181004231600.14101-1-paulo.r.zanoni@intel.com> References: <20181004231600.14101-1-paulo.r.zanoni@intel.com> Subject: [Intel-gfx] [PATCH 1/6] drm/i915: don't apply Display WAs 1125 and 1126 to GLK/CNL+ X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paulo Zanoni MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP BSpec does not show these WAs as applicable to GLK, and for CNL it only shows them applicable for a super early pre-production stepping we shouldn't be caring about anymore. Remove these so we can avoid them on ICL too. Signed-off-by: Paulo Zanoni --- drivers/gpu/drm/i915/intel_pm.c | 43 ++++++++++++++++++++++------------------- 1 file changed, 23 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 1392aa56a55a..910551e04d16 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4687,28 +4687,31 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv, res_lines = div_round_up_fixed16(selected_result, wp->plane_blocks_per_line); - /* Display WA #1125: skl,bxt,kbl,glk */ - if (level == 0 && wp->rc_surface) - res_blocks += fixed16_to_u32_round_up(wp->y_tile_minimum); + if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv)) { + /* Display WA #1125: skl,bxt,kbl */ + if (level == 0 && wp->rc_surface) + res_blocks += + fixed16_to_u32_round_up(wp->y_tile_minimum); + + /* Display WA #1126: skl,bxt,kbl */ + if (level >= 1 && level <= 7) { + if (wp->y_tiled) { + res_blocks += + fixed16_to_u32_round_up(wp->y_tile_minimum); + res_lines += wp->y_min_scanlines; + } else { + res_blocks++; + } - /* Display WA #1126: skl,bxt,kbl,glk */ - if (level >= 1 && level <= 7) { - if (wp->y_tiled) { - res_blocks += fixed16_to_u32_round_up( - wp->y_tile_minimum); - res_lines += wp->y_min_scanlines; - } else { - res_blocks++; + /* + * Make sure result blocks for higher latency levels are + * atleast as high as level below the current level. + * Assumption in DDB algorithm optimization for special + * cases. Also covers Display WA #1125 for RC. + */ + if (result_prev->plane_res_b > res_blocks) + res_blocks = result_prev->plane_res_b; } - - /* - * Make sure result blocks for higher latency levels are atleast - * as high as level below the current level. - * Assumption in DDB algorithm optimization for special cases. - * Also covers Display WA #1125 for RC. - */ - if (result_prev->plane_res_b > res_blocks) - res_blocks = result_prev->plane_res_b; } if (INTEL_GEN(dev_priv) >= 11) {