From patchwork Wed Oct 16 10:32:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Shankar, Uma" X-Patchwork-Id: 11192811 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1FF9417E1 for ; Wed, 16 Oct 2019 10:03:42 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 085D220650 for ; Wed, 16 Oct 2019 10:03:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 085D220650 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8E62C6E90F; Wed, 16 Oct 2019 10:03:41 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id F23326E90F for ; Wed, 16 Oct 2019 10:03:39 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Oct 2019 03:03:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,303,1566889200"; d="scan'208";a="189633925" Received: from linuxpresi1-desktop.iind.intel.com ([10.223.74.143]) by orsmga008.jf.intel.com with ESMTP; 16 Oct 2019 03:03:37 -0700 From: Uma Shankar To: intel-gfx@lists.freedesktop.org Date: Wed, 16 Oct 2019 16:02:45 +0530 Message-Id: <20191016103249.32121-3-uma.shankar@intel.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191016103249.32121-1-uma.shankar@intel.com> References: <20191016103249.32121-1-uma.shankar@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [v1 2/6] drm/i915/display: Enable HDR on gen9 devices with MCA Lspcon X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 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" Gen9 hardware supports HDMI2.0 through LSPCON chips. Extending HDR support for MCA LSPCON based GEN9 devices. SOC will drive LSPCON as DP and send HDR metadata as standard DP SDP packets. LSPCON will be set to operate in PCON mode, will receive the metadata and create Dynamic Range and Mastering Infoframe (DRM packets) and send it to HDR capable HDMI sink devices. Signed-off-by: Uma Shankar --- drivers/gpu/drm/i915/display/intel_hdmi.c | 33 +++++++++++++++++++ drivers/gpu/drm/i915/display/intel_lspcon.c | 36 ++++++++++++++------- drivers/gpu/drm/i915/display/intel_lspcon.h | 4 +++ 3 files changed, 62 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 92d1cbbbee2b..460e10fb1782 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -576,6 +576,39 @@ static u32 hsw_infoframes_enabled(struct intel_encoder *encoder, return val & mask; } +void lspcon_drm_write_infoframe(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + unsigned int type, + const void *frame, ssize_t len) +{ + const u32 *data = frame; + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + i915_reg_t ctl_reg = HSW_TVIDEO_DIP_CTL(cpu_transcoder); + int data_size; + int i; + u32 val = I915_READ(ctl_reg); + + data_size = hsw_dip_data_size(dev_priv, type); + + val &= ~hsw_infoframe_enable(type); + I915_WRITE(ctl_reg, val); + + for (i = 0; i < len; i += 4) { + I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder, + type, i >> 2), *data); + data++; + } + /* Write every possible data byte to force correct ECC calculation. */ + for (; i < data_size; i += 4) + I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder, + type, i >> 2), 0); + + val |= hsw_infoframe_enable(type); + I915_WRITE(ctl_reg, val); + POSTING_READ(ctl_reg); +} + static const u8 infoframe_type_to_idx[] = { HDMI_PACKET_TYPE_GENERAL_CONTROL, HDMI_PACKET_TYPE_GAMUT_METADATA, diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c index a1d0127b7f57..51ad5f02e700 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.c +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c @@ -460,27 +460,41 @@ void lspcon_write_infoframe(struct intel_encoder *encoder, unsigned int type, const void *frame, ssize_t len) { - bool ret; + bool ret = true; struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); struct intel_lspcon *lspcon = enc_to_intel_lspcon(&encoder->base); - /* LSPCON only needs AVI IF */ - if (type != HDMI_INFOFRAME_TYPE_AVI) + if (!(type == HDMI_INFOFRAME_TYPE_AVI || + type == HDMI_PACKET_TYPE_GAMUT_METADATA)) return; - if (lspcon->vendor == LSPCON_VENDOR_MCA) - ret = _lspcon_write_avi_infoframe_mca(&intel_dp->aux, - frame, len); - else - ret = _lspcon_write_avi_infoframe_parade(&intel_dp->aux, - frame, len); + /* + * Supporting HDR on MCA LSPCON + * Todo: Add support for Parade later + */ + if (type == HDMI_PACKET_TYPE_GAMUT_METADATA && + lspcon->vendor != LSPCON_VENDOR_MCA) + return; + + if (lspcon->vendor == LSPCON_VENDOR_MCA) { + if (type == HDMI_INFOFRAME_TYPE_AVI) + ret = _lspcon_write_avi_infoframe_mca(&intel_dp->aux, + frame, len); + else if (type == HDMI_PACKET_TYPE_GAMUT_METADATA) + lspcon_drm_write_infoframe(encoder, crtc_state, + HDMI_PACKET_TYPE_GAMUT_METADATA, + frame, VIDEO_DIP_DATA_SIZE); + } else { + ret = _lspcon_write_avi_infoframe_parade(&intel_dp->aux, frame, + len); + } if (!ret) { - DRM_ERROR("Failed to write AVI infoframes\n"); + DRM_ERROR("Failed to write infoframes\n"); return; } - DRM_DEBUG_DRIVER("AVI infoframes updated successfully\n"); + DRM_DEBUG_DRIVER("Infoframes updated successfully\n"); } void lspcon_read_infoframe(struct intel_encoder *encoder, diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.h b/drivers/gpu/drm/i915/display/intel_lspcon.h index 37cfddf8a9c5..65878904f672 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.h +++ b/drivers/gpu/drm/i915/display/intel_lspcon.h @@ -35,4 +35,8 @@ u32 lspcon_infoframes_enabled(struct intel_encoder *encoder, void lspcon_ycbcr420_config(struct drm_connector *connector, struct intel_crtc_state *crtc_state); +void lspcon_drm_write_infoframe(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + unsigned int type, + const void *frame, ssize_t len); #endif /* __INTEL_LSPCON_H__ */