From patchwork Thu Sep 21 06:13:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Manna, Animesh" X-Patchwork-Id: 13393697 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 E7F73CD495B for ; Thu, 21 Sep 2023 06:25:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 515FB10E56A; Thu, 21 Sep 2023 06:25:19 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id C36EC10E564; Thu, 21 Sep 2023 06:25:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695277514; x=1726813514; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=uSFZV6FTJvUUS1HIK8U4WSVIqRCF2rVI0AHBaw0g4ls=; b=KUeJ4HycYpJk8Hb+04mXWwV8mxD8dlOtE7gnGnVrFq6aNgDA4PnHN+P5 D1VA885a1B/Ue6k0VCBmUyJ4+yOvNieBDoTd0Sybey0UVB6KCSIACLRU3 PKbNzjHhsS86jO0jwb047V1c2gEpPtL6YM4R4x7lRpybxgels0OEiVk8G p5Vf2K7LevYHb+9fo2qDm3SqmPDKwll3mzwGZF5UgaaAxxEiHARu4axEe fnUm0ez3xZWL3306V45AYVUulgqQ+FzBpnCthHJq4EBUWlc7iMob1Ru93 gCh3hPMys5/NoQ8JalJNRHNchIcLtf2Du5079M5dC1lQiEI6PHUhoC/9E w==; X-IronPort-AV: E=McAfee;i="6600,9927,10839"; a="379314128" X-IronPort-AV: E=Sophos;i="6.03,164,1694761200"; d="scan'208";a="379314128" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Sep 2023 23:25:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10839"; a="812488196" X-IronPort-AV: E=Sophos;i="6.03,164,1694761200"; d="scan'208";a="812488196" Received: from srr4-3-linux-101-amanna.iind.intel.com ([10.223.74.76]) by fmsmga008.fm.intel.com with ESMTP; 20 Sep 2023 23:25:12 -0700 From: Animesh Manna To: intel-gfx@lists.freedesktop.org Date: Thu, 21 Sep 2023 11:43:34 +0530 Message-Id: <20230921061335.454818-6-animesh.manna@intel.com> X-Mailer: git-send-email 2.29.0 In-Reply-To: <20230921061335.454818-1-animesh.manna@intel.com> References: <20230921061335.454818-1-animesh.manna@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v6 5/6] drm/i915/panelreplay: enable/disable panel replay 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: , Cc: jani.nikula@intel.com, dri-devel@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" TRANS_DP2_CTL register is programmed to enable panel replay from source and sink is enabled through panel replay dpcd configuration address. Bspec: 1407940617 v1: Initial version. v2: - Use pr_* flags instead psr_* flags. [Jouni] - Remove intel_dp_is_edp check as edp1.5 also has panel replay. [Jouni] v3: Cover letter updated and selective fetch condition check is added before updating its bit in PSR2_MAN_TRK_CTL register. [Jouni] v4: Selective fetch related PSR2_MAN_TRK_CTL programmming dropped. [Jouni] v5: Added PSR2_MAN_TRK_CTL programming as needed for Continuous Full Frame (CFF) update. Note: Initial plan is to enable panel replay in full-screen live active frame update mode. In a incremental approach panel replay will be enabled in selctive update mode if there is any gap in curent implementation. Cc: Jouni Högander Signed-off-by: Animesh Manna --- drivers/gpu/drm/i915/display/intel_ddi.c | 7 +- .../drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_psr.c | 65 ++++++++++++++----- 3 files changed, 56 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 4668de45d6fe..203c56c5e208 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -2717,10 +2717,15 @@ static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state, const struct drm_connector_state *conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - if (HAS_DP20(dev_priv)) + if (HAS_DP20(dev_priv)) { intel_dp_128b132b_sdp_crc16(enc_to_intel_dp(encoder), crtc_state); + if (crtc_state->has_panel_replay) + drm_dp_dpcd_writeb(&intel_dp->aux, PANEL_REPLAY_CONFIG, + DP_PANEL_REPLAY_ENABLE); + } if (DISPLAY_VER(dev_priv) >= 14) mtl_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 3eadd8e12f63..1cf302e9deed 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1698,6 +1698,7 @@ struct intel_psr { u16 su_y_granularity; bool source_panel_replay_support; bool sink_panel_replay_support; + bool panel_replay_enabled; u32 dc3co_exitline; u32 dc3co_exit_delay; struct delayed_work dc3co_work; diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index a59f13c29c3d..67337b4a421b 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -607,8 +607,11 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); u8 dpcd_val = DP_PSR_ENABLE; - /* Enable ALPM at sink for psr2 */ + if (intel_dp->psr.panel_replay_enabled) + return; + if (intel_dp->psr.psr2_enabled) { + /* Enable ALPM at sink for psr2 */ drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG, DP_ALPM_ENABLE | DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE); @@ -758,6 +761,17 @@ static int psr2_block_count(struct intel_dp *intel_dp) return psr2_block_count_lines(intel_dp) / 4; } +static void dg2_activate_panel_replay(struct intel_dp *intel_dp) +{ + struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); + + intel_de_rmw(dev_priv, PSR2_MAN_TRK_CTL(intel_dp->psr.transcoder), + 0, ADLP_PSR2_MAN_TRK_CTL_SF_CONTINUOS_FULL_FRAME); + + intel_de_rmw(dev_priv, TRANS_DP2_CTL(intel_dp->psr.transcoder), 0, + TRANS_DP2_PANEL_REPLAY_ENABLE); +} + static void hsw_activate_psr2(struct intel_dp *intel_dp) { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); @@ -1322,18 +1336,23 @@ void intel_psr_get_config(struct intel_encoder *encoder, return; intel_dp = &dig_port->dp; - if (!CAN_PSR(intel_dp)) + if (!(CAN_PSR(intel_dp) || CAN_PANEL_REPLAY(intel_dp))) return; mutex_lock(&intel_dp->psr.lock); if (!intel_dp->psr.enabled) goto unlock; - /* - * Not possible to read EDP_PSR/PSR2_CTL registers as it is - * enabled/disabled because of frontbuffer tracking and others. - */ - pipe_config->has_psr = true; + if (intel_dp->psr.panel_replay_enabled) { + pipe_config->has_panel_replay = true; + } else { + /* + * Not possible to read EDP_PSR/PSR2_CTL registers as it is + * enabled/disabled because of frontbuffer tracking and others. + */ + pipe_config->has_psr = true; + } + pipe_config->has_psr2 = intel_dp->psr.psr2_enabled; pipe_config->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_VSC); @@ -1370,8 +1389,10 @@ static void intel_psr_activate(struct intel_dp *intel_dp) lockdep_assert_held(&intel_dp->psr.lock); - /* psr1 and psr2 are mutually exclusive.*/ - if (intel_dp->psr.psr2_enabled) + /* psr1, psr2 and panel-replay are mutually exclusive.*/ + if (intel_dp->psr.panel_replay_enabled) + dg2_activate_panel_replay(intel_dp); + else if (intel_dp->psr.psr2_enabled) hsw_activate_psr2(intel_dp); else hsw_activate_psr1(intel_dp); @@ -1549,6 +1570,7 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp, drm_WARN_ON(&dev_priv->drm, intel_dp->psr.enabled); intel_dp->psr.psr2_enabled = crtc_state->has_psr2; + intel_dp->psr.panel_replay_enabled = crtc_state->has_panel_replay; intel_dp->psr.busy_frontbuffer_bits = 0; intel_dp->psr.pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe; intel_dp->psr.transcoder = crtc_state->cpu_transcoder; @@ -1564,8 +1586,12 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp, if (!psr_interrupt_error_check(intel_dp)) return; - drm_dbg_kms(&dev_priv->drm, "Enabling PSR%s\n", - intel_dp->psr.psr2_enabled ? "2" : "1"); + if (intel_dp->psr.panel_replay_enabled) + drm_dbg_kms(&dev_priv->drm, "Enabling Panel Replay\n"); + else + drm_dbg_kms(&dev_priv->drm, "Enabling PSR%s\n", + intel_dp->psr.psr2_enabled ? "2" : "1"); + intel_write_dp_vsc_sdp(encoder, crtc_state, &crtc_state->psr_vsc); intel_snps_phy_update_psr_power_state(dev_priv, phy, true); intel_psr_enable_sink(intel_dp); @@ -1594,7 +1620,10 @@ static void intel_psr_exit(struct intel_dp *intel_dp) return; } - if (intel_dp->psr.psr2_enabled) { + if (intel_dp->psr.panel_replay_enabled) { + intel_de_rmw(dev_priv, TRANS_DP2_CTL(intel_dp->psr.transcoder), + TRANS_DP2_PANEL_REPLAY_ENABLE, 0); + } else if (intel_dp->psr.psr2_enabled) { tgl_disallow_dc3co_on_psr2_exit(intel_dp); val = intel_de_rmw(dev_priv, EDP_PSR2_CTL(cpu_transcoder), @@ -1643,8 +1672,11 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp) if (!intel_dp->psr.enabled) return; - drm_dbg_kms(&dev_priv->drm, "Disabling PSR%s\n", - intel_dp->psr.psr2_enabled ? "2" : "1"); + if (intel_dp->psr.panel_replay_enabled) + drm_dbg_kms(&dev_priv->drm, "Disabling Panel Replay\n"); + else + drm_dbg_kms(&dev_priv->drm, "Disabling PSR%s\n", + intel_dp->psr.psr2_enabled ? "2" : "1"); intel_psr_exit(intel_dp); intel_psr_wait_exit_locked(intel_dp); @@ -1677,6 +1709,7 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp) drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG, 0); intel_dp->psr.enabled = false; + intel_dp->psr.panel_replay_enabled = false; intel_dp->psr.psr2_enabled = false; intel_dp->psr.psr2_sel_fetch_enabled = false; intel_dp->psr.psr2_sel_fetch_cff_enabled = false; @@ -2246,7 +2279,7 @@ static void _intel_psr_post_plane_update(const struct intel_atomic_state *state, struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct intel_encoder *encoder; - if (!crtc_state->has_psr) + if (!(crtc_state->has_psr || crtc_state->has_panel_replay)) return; for_each_intel_encoder_mask_with_psr(state->base.dev, encoder, @@ -2293,7 +2326,7 @@ void intel_psr_post_plane_update(const struct intel_atomic_state *state) struct intel_crtc *crtc; int i; - if (!HAS_PSR(dev_priv)) + if (!(HAS_PSR(dev_priv) || HAS_DP20(dev_priv))) return; for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i)