From patchwork Wed Mar 20 05:00:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13597310 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 3B7CFC54E67 for ; Wed, 20 Mar 2024 05:06:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 74BBF10E7CD; Wed, 20 Mar 2024 05:06:54 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="kpMcY83f"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) by gabe.freedesktop.org (Postfix) with ESMTPS id 38F9210E7CD for ; Wed, 20 Mar 2024 05:06:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1710911213; x=1742447213; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=XgPld5MqEcixHkPXRicr1iecYu2FnxI0jr4KfhVY8b8=; b=kpMcY83fHg5Po9GYXES+rvMew4KkwTVjouopMgokssbLY9J681850W6v dNEJuQOZBMYHxwqx6K0L8/ylNWGzFOrlBkWLAGu4FUWUO6ZGfVvalBA+Y ywinjI5Ls70S+dFRpOlW7mWo1o6k2nHO9MCJ5KRsrY4GNdLavr10fErRk w9Jzh4kx60asu8UnRS5igQMEqU63XpvxmZTfrK1fNwu+ZT7hXFZ59lPF8 eChakk40PceaYsqBh8rkY23oMjlgPkvYtea0EQF7O/pvcnadHsQ9pnmfw H5rl5mDkyya1JEq1qtRbCwxTOoTnMd77KRSGu7ZN6gzuvvSj90XSFJzck Q==; X-IronPort-AV: E=McAfee;i="6600,9927,11018"; a="5936581" X-IronPort-AV: E=Sophos;i="6.07,139,1708416000"; d="scan'208";a="5936581" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Mar 2024 22:06:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,139,1708416000"; d="scan'208";a="14423567" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by orviesa006.jf.intel.com with ESMTP; 19 Mar 2024 22:06:51 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: Mitul Golani , Arun R Murthy Subject: [PATCH v20 8/9] drm/i915/display: Compute vrr_vsync params Date: Wed, 20 Mar 2024 10:30:20 +0530 Message-Id: <20240320050020.3785596-1-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240318111216.3715694-1-mitulkumar.ajitkumar.golani@intel.com> References: <20240318111216.3715694-1-mitulkumar.ajitkumar.golani@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" Compute vrr_vsync_start/end, which sets the position for hardware to send the Vsync at a fixed position relative to the end of the Vblank. --v2: - Updated VSYNC_START/END macros to VRR_VSYNC_START/END. (Ankit) - Updated bit fields of VRR_VSYNC_START/END. (Ankit) --v3: - Add PIPE_CONF_CHECK_I(vrr.vsync_start/end). - Read/write vrr_vsync params only when we intend to send adaptive_sync sdp. --v4: - Use VRR_SYNC_START/END macros correctly. --v5: - Send AS SDP only when VRR is enabled. --v6: - Add TRANS_VRR_VSYNC befor enabling VRR as per bspec. (Ankit) Signed-off-by: Mitul Golani Reviewed-by: Arun R Murthy Reviewed-by: Ankit Nautiyal --- drivers/gpu/drm/i915/display/intel_display.c | 2 ++ .../drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_vrr.c | 33 +++++++++++++++++-- drivers/gpu/drm/i915/i915_reg.h | 7 ++++ 4 files changed, 41 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index eb8f36b38c41..9e5924e21eee 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5356,6 +5356,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, PIPE_CONF_CHECK_I(vrr.flipline); PIPE_CONF_CHECK_I(vrr.pipeline_full); PIPE_CONF_CHECK_I(vrr.guardband); + PIPE_CONF_CHECK_I(vrr.vsync_start); + PIPE_CONF_CHECK_I(vrr.vsync_end); } #undef PIPE_CONF_CHECK_X diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 36fcded7564a..95da3cf27188 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1431,6 +1431,7 @@ struct intel_crtc_state { bool enable, in_range; u8 pipeline_full; u16 flipline, vmin, vmax, guardband; + u32 vsync_end, vsync_start; } vrr; /* Stream Splitter for eDP MSO */ diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index eb5bd0743902..856378f8b90e 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -9,6 +9,7 @@ #include "intel_de.h" #include "intel_display_types.h" #include "intel_vrr.h" +#include "intel_dp.h" bool intel_vrr_is_capable(struct intel_connector *connector) { @@ -113,6 +114,7 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, struct drm_i915_private *i915 = to_i915(crtc->base.dev); struct intel_connector *connector = to_intel_connector(conn_state->connector); + struct intel_dp *intel_dp = intel_attached_dp(connector); struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; const struct drm_display_info *info = &connector->base.display_info; int vmin, vmax; @@ -165,6 +167,14 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, if (crtc_state->uapi.vrr_enabled) { crtc_state->vrr.enable = true; crtc_state->mode_flags |= I915_MODE_FLAG_VRR; + if (intel_dp_as_sdp_supported(intel_dp)) { + crtc_state->vrr.vsync_start = + (crtc_state->hw.adjusted_mode.crtc_vtotal - + crtc_state->hw.adjusted_mode.vsync_start); + crtc_state->vrr.vsync_end = + (crtc_state->hw.adjusted_mode.crtc_vtotal - + crtc_state->hw.adjusted_mode.vsync_end); + } } } @@ -240,6 +250,12 @@ void intel_vrr_enable(const struct intel_crtc_state *crtc_state) return; intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), TRANS_PUSH_EN); + + if (HAS_AS_SDP(dev_priv)) + intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), + VRR_VSYNC_END(crtc_state->vrr.vsync_end) | + VRR_VSYNC_START(crtc_state->vrr.vsync_start)); + intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state)); } @@ -258,13 +274,16 @@ void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state) intel_de_wait_for_clear(dev_priv, TRANS_VRR_STATUS(cpu_transcoder), VRR_STATUS_VRR_EN_LIVE, 1000); intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), 0); + + if (HAS_AS_SDP(dev_priv)) + intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), 0); } void intel_vrr_get_config(struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; - u32 trans_vrr_ctl; + u32 trans_vrr_ctl, trans_vrr_vsync; trans_vrr_ctl = intel_de_read(dev_priv, TRANS_VRR_CTL(cpu_transcoder)); @@ -284,6 +303,16 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state) crtc_state->vrr.vmin = intel_de_read(dev_priv, TRANS_VRR_VMIN(cpu_transcoder)) + 1; } - if (crtc_state->vrr.enable) + if (crtc_state->vrr.enable) { crtc_state->mode_flags |= I915_MODE_FLAG_VRR; + + if (HAS_AS_SDP(dev_priv)) { + trans_vrr_vsync = + intel_de_read(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder)); + crtc_state->vrr.vsync_start = + REG_FIELD_GET(VRR_VSYNC_START_MASK, trans_vrr_vsync); + crtc_state->vrr.vsync_end = + REG_FIELD_GET(VRR_VSYNC_END_MASK, trans_vrr_vsync); + } + } } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 3ff6a38826cb..2ede6982175c 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2095,6 +2095,13 @@ #define TRANS_PUSH_EN REG_BIT(31) #define TRANS_PUSH_SEND REG_BIT(30) +#define _TRANS_VRR_VSYNC_A 0x60078 +#define TRANS_VRR_VSYNC(trans) _MMIO_TRANS2(trans, _TRANS_VRR_VSYNC_A) +#define VRR_VSYNC_END_MASK REG_GENMASK(28, 16) +#define VRR_VSYNC_END(vsync_end) REG_FIELD_PREP(VRR_VSYNC_END_MASK, (vsync_end)) +#define VRR_VSYNC_START_MASK REG_GENMASK(12, 0) +#define VRR_VSYNC_START(vsync_start) REG_FIELD_PREP(VRR_VSYNC_START_MASK, (vsync_start)) + /* VGA port control */ #define ADPA _MMIO(0x61100) #define PCH_ADPA _MMIO(0xe1100)