From patchwork Thu May 14 06:07:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gwan-gyeong Mun X-Patchwork-Id: 11547967 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 EA41F913 for ; Thu, 14 May 2020 06:08:20 +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 D17B0206BE for ; Thu, 14 May 2020 06:08:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D17B0206BE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 20A376EAAE; Thu, 14 May 2020 06:08:10 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id C374B88FA0; Thu, 14 May 2020 06:08:06 +0000 (UTC) IronPort-SDR: PgDuTez23w/DapqMjibQPforrwNYPRmjyGovwvv419e59AYQ588fXxvHy8elB7xo6+wTMjR2G2 Ak71v03VG29Q== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 May 2020 23:08:06 -0700 IronPort-SDR: okbFpPWxknPo2xcW/6WA0XulXXFos6mebmzeAZdQ+ILL4KZbXJBlMrxkt9DwIHo6o56IZF+k4m MhVM4SCBw7qA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,390,1583222400"; d="scan'208";a="409957048" Received: from bgodonne-mobl.amr.corp.intel.com (HELO helsinki.ger.corp.intel.com) ([10.252.18.167]) by orsmga004.jf.intel.com with ESMTP; 13 May 2020 23:08:04 -0700 From: Gwan-gyeong Mun To: intel-gfx@lists.freedesktop.org Subject: [PATCH v12 13/14] drm/i915/dp: Add compute routine for DP PSR VSC SDP Date: Thu, 14 May 2020 09:07:31 +0300 Message-Id: <20200514060732.3378396-14-gwan-gyeong.mun@intel.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200514060732.3378396-1-gwan-gyeong.mun@intel.com> References: <20200514060732.3378396-1-gwan-gyeong.mun@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, laurent.pinchart@ideasonboard.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In order to use a common VSC SDP Colorimetry calculating code on PSR, it adds a compute routine for PSR VSC SDP. As PSR routine can not use infoframes.vsc of crtc state, it also adds new writing of DP SDPs (Secondary Data Packet) for PSR. PSR routine has its own scenario and timings of writing a VSC SDP. v3: Replace a structure name to drm_dp_vsc_sdp from intel_dp_vsc_sdp v4: Use struct drm_device logging macros v10: 1) Fix packing of VSC SDP where Pixel Encoding/Colorimetry Format is not supported. 2) Change a checking of PSR state. Signed-off-by: Gwan-gyeong Mun Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/display/intel_dp.c | 66 ++++++++++++++++++++++++- drivers/gpu/drm/i915/display/intel_dp.h | 8 +++ 2 files changed, 72 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 4ccd6b7a3d83..408c3c1c5e81 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2487,8 +2487,8 @@ static void intel_dp_compute_vsc_sdp(struct intel_dp *intel_dp, { struct drm_dp_vsc_sdp *vsc = &crtc_state->infoframes.vsc; - /* When PSR is enabled, VSC SDP is handled by PSR routine */ - if (intel_psr_enabled(intel_dp)) + /* When a crtc state has PSR, VSC SDP will be handled by PSR routine */ + if (crtc_state->has_psr) return; if (!intel_dp_needs_vsc_sdp(crtc_state, conn_state)) @@ -2500,6 +2500,42 @@ static void intel_dp_compute_vsc_sdp(struct intel_dp *intel_dp, &crtc_state->infoframes.vsc); } +void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp, + const struct intel_crtc_state *crtc_state, + const struct drm_connector_state *conn_state, + struct drm_dp_vsc_sdp *vsc) +{ + struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); + + vsc->sdp_type = DP_SDP_VSC; + + if (dev_priv->psr.psr2_enabled) { + if (dev_priv->psr.colorimetry_support && + intel_dp_needs_vsc_sdp(crtc_state, conn_state)) { + /* [PSR2, +Colorimetry] */ + intel_dp_compute_vsc_colorimetry(crtc_state, conn_state, + vsc); + } else { + /* + * [PSR2, -Colorimetry] + * Prepare VSC Header for SU as per eDP 1.4 spec, Table 6-11 + * 3D stereo + PSR/PSR2 + Y-coordinate. + */ + vsc->revision = 0x4; + vsc->length = 0xe; + } + } else { + /* + * [PSR1] + * Prepare VSC Header for SU as per DP 1.4 spec, Table 2-118 + * VSC SDP supporting 3D stereo + PSR (applies to eDP v1.3 or + * higher). + */ + vsc->revision = 0x2; + vsc->length = 0x8; + } +} + static void intel_dp_compute_hdr_metadata_infoframe_sdp(struct intel_dp *intel_dp, struct intel_crtc_state *crtc_state, @@ -4791,6 +4827,13 @@ static ssize_t intel_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc, sdp->sdp_header.HB2 = vsc->revision; /* Revision Number */ sdp->sdp_header.HB3 = vsc->length; /* Number of Valid Data Bytes */ + /* + * Only revision 0x5 supports Pixel Encoding/Colorimetry Format as + * per DP 1.4a spec. + */ + if (vsc->revision != 0x5) + goto out; + /* VSC SDP Payload for DB16 through DB18 */ /* Pixel Encoding and Colorimetry Formats */ sdp->db[16] = (vsc->pixelformat & 0xf) << 4; /* DB16[7:4] */ @@ -4823,6 +4866,7 @@ static ssize_t intel_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc, /* Content Type */ sdp->db[18] = vsc->content_type & 0x7; +out: return length; } @@ -4935,6 +4979,24 @@ static void intel_write_dp_sdp(struct intel_encoder *encoder, intel_dig_port->write_infoframe(encoder, crtc_state, type, &sdp, len); } +void intel_write_dp_vsc_sdp(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + struct drm_dp_vsc_sdp *vsc) +{ + struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct dp_sdp sdp = {}; + ssize_t len; + + len = intel_dp_vsc_sdp_pack(vsc, &sdp, sizeof(sdp)); + + if (drm_WARN_ON(&dev_priv->drm, len < 0)) + return; + + intel_dig_port->write_infoframe(encoder, crtc_state, DP_SDP_VSC, + &sdp, len); +} + void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable, const struct intel_crtc_state *crtc_state, diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index 0d2de15703c3..1702959ca079 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -16,6 +16,7 @@ struct drm_connector_state; struct drm_encoder; struct drm_i915_private; struct drm_modeset_acquire_ctx; +struct drm_dp_vsc_sdp; struct intel_connector; struct intel_crtc_state; struct intel_digital_port; @@ -108,6 +109,13 @@ int intel_dp_link_required(int pixel_clock, int bpp); int intel_dp_max_data_rate(int max_link_clock, int max_lanes); bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state); +void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp, + const struct intel_crtc_state *crtc_state, + const struct drm_connector_state *conn_state, + struct drm_dp_vsc_sdp *vsc); +void intel_write_dp_vsc_sdp(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + struct drm_dp_vsc_sdp *vsc); void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state);