From patchwork Fri Dec 23 05:57:39 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: vathsala nagaraju X-Patchwork-Id: 9487215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BE8EB601D3 for ; Fri, 23 Dec 2016 05:58:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A450727C0C for ; Fri, 23 Dec 2016 05:58:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9527627DF9; Fri, 23 Dec 2016 05:58:02 +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=-4.2 required=2.0 tests=BAYES_00, 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 0F1AF27C0C for ; Fri, 23 Dec 2016 05:57:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4588C6E1C1; Fri, 23 Dec 2016 05:57:56 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 68F2C6E028; Fri, 23 Dec 2016 05:57:54 +0000 (UTC) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP; 22 Dec 2016 21:57:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.33,392,1477983600"; d="scan'208"; a="1085812225" Received: from vnagaraj-hp-elitedesk-800-g1-twr.iind.intel.com ([10.223.107.106]) by fmsmga001.fm.intel.com with ESMTP; 22 Dec 2016 21:57:51 -0800 From: vathsala nagaraju To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Date: Fri, 23 Dec 2016 11:27:39 +0530 Message-Id: <1482472659-31213-1-git-send-email-vathsala.nagaraju@intel.com> X-Mailer: git-send-email 1.9.1 Cc: Rodrigo Vivi Subject: [Intel-gfx] [PATCH 2/2] drm/i915/psr: program vsc header for psr2 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Function hsw_psr_setup handles vsc header setup for psr1 and skl_psr_setup_vsc handles vsc header setup for psr2. Setup VSC header in function skl_psr_setup_vsc for psr2 support, as per edp 1.4 spec, table 6-11:VSC SDP HEADER Extension for psr2 operation. v2: (Jani) - Initialize variables to 0 - intel_dp_get_y_cord_status and intel_dp_get_y_cord_status made static - Correct indentation for continuation lines - Change DP_PSR_Y_COORDINATE to DP_PSR2_SU_Y_COORDINATE_REQUIRED - Change DPRX_FEATURE_ENUMERATION_LIST to DP_DPRX_* - Change VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED to DP_VSC_* Cc: Rodrigo Vivi Cc: Jim Bride Signed-off-by: Vathsala Nagaraju --- drivers/gpu/drm/i915/i915_drv.h | 2 ++ drivers/gpu/drm/i915/intel_dp.c | 26 ++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_psr.c | 17 +++++++++++++++-- 3 files changed, 43 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1a91409..855dcba 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1232,6 +1232,8 @@ struct i915_psr { bool psr2_support; bool aux_frame_sync; bool link_standby; + bool y_cord_support; + bool colorimetry_support; }; enum intel_pch { diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index fb12896..da577c9 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3042,6 +3042,24 @@ static void chv_dp_post_pll_disable(struct intel_encoder *encoder, DP_LINK_STATUS_SIZE) == DP_LINK_STATUS_SIZE; } +static bool intel_dp_get_y_cord_status(struct intel_dp *intel_dp) +{ + uint8_t psr_caps = 0; + + drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_CAPS, &psr_caps); + return psr_caps & DP_PSR2_SU_Y_COORDINATE_REQUIRED; +} + +static bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp) +{ + uint8_t dprx = 0; + + drm_dp_dpcd_readb(&intel_dp->aux, + DP_DPRX_FEATURE_ENUMERATION_LIST, + &dprx); + return dprx & DP_VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED; +} + /* These are source-specific values. */ uint8_t intel_dp_voltage_max(struct intel_dp *intel_dp) @@ -3620,6 +3638,14 @@ void intel_dp_set_idle_link_train(struct intel_dp *intel_dp) dev_priv->psr.psr2_support = dev_priv->psr.aux_frame_sync; DRM_DEBUG_KMS("PSR2 %s on sink", dev_priv->psr.psr2_support ? "supported" : "not supported"); + + if (dev_priv->psr.psr2_support) { + dev_priv->psr.y_cord_support = + intel_dp_get_y_cord_status(intel_dp); + dev_priv->psr.colorimetry_support = + intel_dp_get_colorimetry_status(intel_dp); + } + } /* Read the eDP Display control capabilities registers */ diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 6aca8ff..c3aa649 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -122,13 +122,26 @@ static void vlv_psr_setup_vsc(struct intel_dp *intel_dp) static void skl_psr_setup_su_vsc(struct intel_dp *intel_dp) { struct edp_vsc_psr psr_vsc; + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = intel_dig_port->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); /* Prepare VSC Header for SU as per EDP 1.4 spec, Table 6.11 */ memset(&psr_vsc, 0, sizeof(psr_vsc)); psr_vsc.sdp_header.HB0 = 0; psr_vsc.sdp_header.HB1 = 0x7; - psr_vsc.sdp_header.HB2 = 0x3; - psr_vsc.sdp_header.HB3 = 0xb; + if (dev_priv->psr.colorimetry_support && + dev_priv->psr.y_cord_support) { + psr_vsc.sdp_header.HB2 = 0x5; + psr_vsc.sdp_header.HB3 = 0x13; + } else if (dev_priv->psr.y_cord_support) { + psr_vsc.sdp_header.HB2 = 0x4; + psr_vsc.sdp_header.HB3 = 0xe; + } else { + psr_vsc.sdp_header.HB2 = 0x3; + psr_vsc.sdp_header.HB3 = 0xc; + } + intel_psr_write_vsc(intel_dp, &psr_vsc); }