From patchwork Fri Mar 22 11:40:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Lisovskiy, Stanislav" X-Patchwork-Id: 13599990 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8CA9BC47DD9 for ; Fri, 22 Mar 2024 11:40:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D735310F4E7; Fri, 22 Mar 2024 11:40:52 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="m9xQUO5p"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0236D10F4E7 for ; Fri, 22 Mar 2024 11:40:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1711107652; x=1742643652; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2lxYUjDbmqT61E7Mf2jIA3zDoXHRpVQPLkfrm9lZHOQ=; b=m9xQUO5pIidNDaOP/lUuESxxa0tk9Eprb+dFamS+TnHid7OIXr0qvTd8 g6K7AtpNOK+LsW1j4ViZ0e8V7bIAxdIP+70lGQLKGYdyyQZHxaHhYCLGG ecoic9pCWmnSZXtlfYUf2ymm4hTwafhqY6vUNP64gcoaQp4ToEPk6+n7n Tzs3QG3cG24Yzevw0qiWUpC37g78/tbi6p1yTvEO2eFQi0MsqJ5G5xioB I4jZQXxl7N4nRuv0X8h5ULxgJ3QInbNB/yjF3kpIGBQVtxQuJFXtQ9XXM CmPINq+j2+5IR9kKjWMR1kHdTWmkYpzMrMNI3MwpiMSVu9dH5i7LqO3OJ Q==; X-IronPort-AV: E=McAfee;i="6600,9927,11020"; a="9939213" X-IronPort-AV: E=Sophos;i="6.07,145,1708416000"; d="scan'208";a="9939213" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2024 04:40:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,145,1708416000"; d="scan'208";a="14906484" Received: from unknown (HELO slisovsk-Lenovo-ideapad-720S-13IKB.fi.intel.com) ([10.237.72.65]) by fmviesa009.fm.intel.com with ESMTP; 22 Mar 2024 04:40:50 -0700 From: Stanislav Lisovskiy To: intel-gfx@lists.freedesktop.org Cc: jani.saarinen@intel.com, Stanislav.Lisovskiy@intel.com, ville.syrjala@linux.intel.com Subject: [PATCH 2/5] drm/i915: Break intel_dbuf_mbus_update into 2 separate parts Date: Fri, 22 Mar 2024 13:40:43 +0200 Message-Id: <20240322114046.24930-3-stanislav.lisovskiy@intel.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20240322114046.24930-1-stanislav.lisovskiy@intel.com> References: <20240322114046.24930-1-stanislav.lisovskiy@intel.com> MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" We need to be able to update dbuf min tracker and mdclk ratio separately if mbus_join state didn't change, so lets add one degree of freedom and make it possible. Signed-off-by: Stanislav Lisovskiy Reviewed-by: Ville Syrjälä --- drivers/gpu/drm/i915/display/skl_watermark.c | 55 ++++++++++++-------- 1 file changed, 33 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c index 8ff69da664807..2b947870527fc 100644 --- a/drivers/gpu/drm/i915/display/skl_watermark.c +++ b/drivers/gpu/drm/i915/display/skl_watermark.c @@ -3570,16 +3570,38 @@ void intel_dbuf_mdclk_cdclk_ratio_update(struct drm_i915_private *i915, u8 ratio DBUF_MIN_TRACKER_STATE_SERVICE(ratio - 1)); } +static void intel_dbuf_mdclk_min_tracker_update(struct intel_atomic_state *state) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_dbuf_state *old_dbuf_state = + intel_atomic_get_old_dbuf_state(state); + const struct intel_dbuf_state *new_dbuf_state = + intel_atomic_get_new_dbuf_state(state); + + if (DISPLAY_VER(i915) >= 20 && + old_dbuf_state->mdclk_cdclk_ratio != new_dbuf_state->mdclk_cdclk_ratio) { + /* + * For Xe2LPD and beyond, when there is a change in the ratio + * between MDCLK and CDCLK, updates to related registers need to + * happen at a specific point in the CDCLK change sequence. In + * that case, we defer to the call to + * intel_dbuf_mdclk_cdclk_ratio_update() to the CDCLK logic. + */ + return; + } + + intel_dbuf_mdclk_cdclk_ratio_update(i915, new_dbuf_state->mdclk_cdclk_ratio, + new_dbuf_state->joined_mbus); +} + /* * Configure MBUS_CTL and all DBUF_CTL_S of each slice to join_mbus state before * update the request state of all DBUS slices. */ -static void intel_dbuf_mbus_update(struct intel_atomic_state *state) +static void intel_dbuf_mbus_join_update(struct intel_atomic_state *state) { struct drm_i915_private *i915 = to_i915(state->base.dev); u32 mbus_ctl; - const struct intel_dbuf_state *old_dbuf_state = - intel_atomic_get_old_dbuf_state(state); const struct intel_dbuf_state *new_dbuf_state = intel_atomic_get_new_dbuf_state(state); @@ -3600,21 +3622,6 @@ static void intel_dbuf_mbus_update(struct intel_atomic_state *state) intel_de_rmw(i915, MBUS_CTL, MBUS_HASHING_MODE_MASK | MBUS_JOIN | MBUS_JOIN_PIPE_SELECT_MASK, mbus_ctl); - - if (DISPLAY_VER(i915) >= 20 && - old_dbuf_state->mdclk_cdclk_ratio != new_dbuf_state->mdclk_cdclk_ratio) { - /* - * For Xe2LPD and beyond, when there is a change in the ratio - * between MDCLK and CDCLK, updates to related registers need to - * happen at a specific point in the CDCLK change sequence. In - * that case, we defer to the call to - * intel_dbuf_mdclk_cdclk_ratio_update() to the CDCLK logic. - */ - return; - } - - intel_dbuf_mdclk_cdclk_ratio_update(i915, new_dbuf_state->mdclk_cdclk_ratio, - new_dbuf_state->joined_mbus); } void intel_dbuf_pre_plane_update(struct intel_atomic_state *state) @@ -3632,8 +3639,10 @@ void intel_dbuf_pre_plane_update(struct intel_atomic_state *state) WARN_ON(!new_dbuf_state->base.changed); - if (!old_dbuf_state->joined_mbus && new_dbuf_state->joined_mbus) - intel_dbuf_mbus_update(state); + if (!old_dbuf_state->joined_mbus && new_dbuf_state->joined_mbus) { + intel_dbuf_mbus_join_update(state); + intel_dbuf_mdclk_min_tracker_update(state); + } gen9_dbuf_slices_update(i915, old_dbuf_state->enabled_slices | @@ -3655,8 +3664,10 @@ void intel_dbuf_post_plane_update(struct intel_atomic_state *state) WARN_ON(!new_dbuf_state->base.changed); - if (old_dbuf_state->joined_mbus && !new_dbuf_state->joined_mbus) - intel_dbuf_mbus_update(state); + if (old_dbuf_state->joined_mbus && !new_dbuf_state->joined_mbus) { + intel_dbuf_mbus_join_update(state); + intel_dbuf_mdclk_min_tracker_update(state); + } gen9_dbuf_slices_update(i915, new_dbuf_state->enabled_slices);