From patchwork Mon Sep 16 07:54:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Animesh Manna X-Patchwork-Id: 13805074 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 F2945C3ABA2 for ; Mon, 16 Sep 2024 08:12:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9504310E173; Mon, 16 Sep 2024 08:12:43 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="R6K90t+Q"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id 72D2910E173 for ; Mon, 16 Sep 2024 08:12:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1726474362; x=1758010362; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+yym8ujimfbmShNap8K1/F6RpS2XQaIXe4xqj3Xp7YM=; b=R6K90t+QDmIpTYcnSnqU7+0mABS/2pmlf4EvwMVOOnx/nuVDlpv3Aayf zI+8xnpshPVsKu5LBlLaUNMJspL5Avt3/3rLOjTF+nIa+RBjipx8WJtRX l5hKNA6q6iTyTNbkngO3Kv6ujNaPiTI3XJ/PqwYcK+HsTTWo0yEHk70Ji hdKyRHgClsSUZZtQ0LBfrHlXWPHUMJDVgCl7ibAae+HbtDnoQNGVRllCz i07SW+NZcfW7QsBOf9Yx0X5wNicXNCoIgKqaJj+HrvqZo/UJy8xjGIJQ9 alYKgBprWYUjNO4xs2j+uXN2Rp64JdOjiBFKlw4O17oxtkj1EfuRP/clJ g==; X-CSE-ConnectionGUID: EJwvCv+TTPCqAZcTWm+vtQ== X-CSE-MsgGUID: efCiVXyeSNSmnUxyPFAQ+A== X-IronPort-AV: E=McAfee;i="6700,10204,11196"; a="25440862" X-IronPort-AV: E=Sophos;i="6.10,232,1719903600"; d="scan'208";a="25440862" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2024 01:12:42 -0700 X-CSE-ConnectionGUID: ONFxd9FUSQaeLBgv993CDg== X-CSE-MsgGUID: CrntnlOVRyCp1kBpiyG5cQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,232,1719903600"; d="scan'208";a="68792705" Received: from srr4-3-linux-101-amanna.iind.intel.com ([10.223.74.76]) by fmviesa009.fm.intel.com with ESMTP; 16 Sep 2024 01:12:38 -0700 From: Animesh Manna To: intel-gfx@lists.freedesktop.org Cc: jani.nikula@intel.com, ville.syrjala@linux.intel.com, jouni.hogander@intel.com, arun.r.murthy@intel.com, ankit.k.nautiyal@intel.com, mitulkumar.ajitkumar.golani@intel.com, Animesh Manna Subject: [PATCH v11 2/2] drm/i915/panelreplay: Panel replay workaround with VRR Date: Mon, 16 Sep 2024 13:24:06 +0530 Message-Id: <20240916075406.3521433-3-animesh.manna@intel.com> X-Mailer: git-send-email 2.29.0 In-Reply-To: <20240916075406.3521433-1-animesh.manna@intel.com> References: <20240916075406.3521433-1-animesh.manna@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" Panel Replay VSC SDP not getting sent when VRR is enabled and W1 and W2 are 0. So Program Set Context Latency in TRANS_SET_CONTEXT_LATENCY register to at least a value of 1. The same is applicable for PSR1/PSR2 as well. HSD: 14015406119 v1: Initial version. v2: Update timings stored in adjusted_mode struct. [Ville] v3: Add WA in compute_config(). [Ville] v4: - Add DISPLAY_VER() check and improve code comment. [Rodrigo] - Introduce centralized intel_crtc_vblank_delay(). [Ville] v5: Move to crtc_compute_config(). [Ville] v6: Restrict DISPLAY_VER till 14. [Mitul] v7: - Corrected code-comment. [Mitul] - dev_priv local variable removed. [Jani] v8: Introduce late_compute_config() which will take care late vblank-delay adjustment. [Ville] v9: Implementation simplified and split into multiple patches. v10: - Split vrr changes and use struct intel_display in DISPLAY_VER(). [Ankit] - Use for_each_new_intel_connector_in_state(). [Jani] Signed-off-by: Animesh Manna --- drivers/gpu/drm/i915/display/intel_display.c | 33 +++++++++++++++++++- drivers/gpu/drm/i915/display/intel_display.h | 2 ++ 2 files changed, 34 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 111e61eceafc..a0bd29b0d29a 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -2529,7 +2529,18 @@ static int intel_crtc_compute_config(struct intel_atomic_state *state, { struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc); - int ret; + struct intel_connector *connector; + struct intel_digital_connector_state *conn_state; + int ret, i; + + for_each_new_intel_connector_in_state(state, connector, conn_state, i) { + struct intel_encoder *encoder = connector->encoder; + + if (conn_state->base.crtc != &crtc->base) + continue; + + intel_crtc_adjust_vblank_delay(crtc_state, encoder); + } ret = intel_dpll_crtc_compute_clock(state, crtc); if (ret) @@ -3940,6 +3951,26 @@ bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state) return true; } +void intel_crtc_adjust_vblank_delay(struct intel_crtc_state *crtc_state, + struct intel_encoder *encoder) +{ + struct intel_display *display = to_intel_display(encoder); + struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + + /* + * wa_14015401596 for display versions 13, 14. + * Program Set Context Latency in TRANS_SET_CONTEXT_LATENCY register + * to at least a value of 1 when PSR1/PSR2/Panel Replay is enabled with VRR. + * Value for TRANS_SET_CONTEXT_LATENCY is calculated by substracting + * crtc_vdisplay from crtc_vblank_start, so incrementing crtc_vblank_start + * by 1 if both are equal. + */ + if (crtc_state->vrr.enable && crtc_state->has_psr && + adjusted_mode->crtc_vblank_start == adjusted_mode->crtc_vdisplay && + IS_DISPLAY_VER(display, 13, 14)) + adjusted_mode->crtc_vblank_start += 1; +} + int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n) { diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 7ca26e5cb20e..db7bb5cac2f5 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -429,6 +429,8 @@ bool intel_crtc_is_joiner_primary(const struct intel_crtc_state *crtc_state); u8 intel_crtc_joiner_secondary_pipes(const struct intel_crtc_state *crtc_state); struct intel_crtc *intel_primary_crtc(const struct intel_crtc_state *crtc_state); bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state); +void intel_crtc_adjust_vblank_delay(struct intel_crtc_state *crtc_state, + struct intel_encoder *encoder); bool intel_pipe_config_compare(const struct intel_crtc_state *current_config, const struct intel_crtc_state *pipe_config, bool fastset);