From patchwork Tue May 22 00:25:51 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Zanoni, Paulo R" X-Patchwork-Id: 10417091 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 7D9D76032C for ; Tue, 22 May 2018 00:26:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6E3A228A42 for ; Tue, 22 May 2018 00:26:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 630B128AA8; Tue, 22 May 2018 00:26:11 +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=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, 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 DFD9528A42 for ; Tue, 22 May 2018 00:26:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AD27F6E051; Tue, 22 May 2018 00:26:08 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id D662A6E051 for ; Tue, 22 May 2018 00:26:03 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 May 2018 17:26:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,428,1520924400"; d="scan'208";a="226155198" Received: from przanoni-mobl.jf.intel.com ([10.24.10.211]) by orsmga005.jf.intel.com with ESMTP; 21 May 2018 17:26:02 -0700 From: Paulo Zanoni To: intel-gfx@lists.freedesktop.org Date: Mon, 21 May 2018 17:25:51 -0700 Message-Id: <20180522002558.29262-18-paulo.r.zanoni@intel.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180522002558.29262-1-paulo.r.zanoni@intel.com> References: <20180522002558.29262-1-paulo.r.zanoni@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 17/24] drm/i915/icl: Add 10-bit support for hdmi 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: , Cc: Paulo Zanoni , Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: "Sripada, Radhakrishna" Starting Icelake silicon supports 10-bpc hdmi to support certain media workloads. Currently hdmi supports 8 and 12 bpc. Plumbed in support for 10 bit hdmi. Cc: James Ausmus Cc: Jani Nikula Cc: Paulo Zanoni Cc: Manasi Navare Cc: Rodrigo Vivi Cc: Ville Syrjälä Signed-off-by: Radhakrishna Sripada Reviewed-by: Ville Syrjälä --- drivers/gpu/drm/i915/intel_hdmi.c | 64 +++++++++++++++++++++++++++++---------- 1 file changed, 48 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 0ca4cc877520..53ac8bb85218 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1561,14 +1561,23 @@ intel_hdmi_mode_valid(struct drm_connector *connector, /* check if we can do 8bpc */ status = hdmi_port_clock_valid(hdmi, clock, true, force_dvi); - /* if we can't do 8bpc we may still be able to do 12bpc */ - if (!HAS_GMCH_DISPLAY(dev_priv) && status != MODE_OK && hdmi->has_hdmi_sink && !force_dvi) - status = hdmi_port_clock_valid(hdmi, clock * 3 / 2, true, force_dvi); + if (hdmi->has_hdmi_sink && !force_dvi) { + /* if we can't do 8bpc we may still be able to do 12bpc */ + if (status != MODE_OK && !HAS_GMCH_DISPLAY(dev_priv)) + status = hdmi_port_clock_valid(hdmi, clock * 3 / 2, + true, force_dvi); + + /* if we can't do 8,12bpc we may still be able to do 10bpc */ + if (status != MODE_OK && INTEL_GEN(dev_priv) >= 11) + status = hdmi_port_clock_valid(hdmi, clock * 5 / 4, + true, force_dvi); + } return status; } -static bool hdmi_12bpc_possible(const struct intel_crtc_state *crtc_state) +static bool hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state, + int bpc) { struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev); @@ -1580,6 +1589,9 @@ static bool hdmi_12bpc_possible(const struct intel_crtc_state *crtc_state) if (HAS_GMCH_DISPLAY(dev_priv)) return false; + if (bpc == 10 && INTEL_GEN(dev_priv) < 11) + return false; + if (crtc_state->pipe_bpp <= 8*3) return false; @@ -1587,7 +1599,7 @@ static bool hdmi_12bpc_possible(const struct intel_crtc_state *crtc_state) return false; /* - * HDMI 12bpc affects the clocks, so it's only possible + * HDMI deep color affects the clocks, so it's only possible * when not cloning with other encoder types. */ if (crtc_state->output_types != 1 << INTEL_OUTPUT_HDMI) @@ -1602,16 +1614,24 @@ static bool hdmi_12bpc_possible(const struct intel_crtc_state *crtc_state) if (crtc_state->ycbcr420) { const struct drm_hdmi_info *hdmi = &info->hdmi; - if (!(hdmi->y420_dc_modes & DRM_EDID_YCBCR420_DC_36)) + if (bpc == 12 && !(hdmi->y420_dc_modes & + DRM_EDID_YCBCR420_DC_36)) + return false; + else if (bpc == 10 && !(hdmi->y420_dc_modes & + DRM_EDID_YCBCR420_DC_30)) return false; } else { - if (!(info->edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_36)) + if (bpc == 12 && !(info->edid_hdmi_dc_modes & + DRM_EDID_HDMI_DC_36)) + return false; + else if (bpc == 10 && !(info->edid_hdmi_dc_modes & + DRM_EDID_HDMI_DC_30)) return false; } } /* Display WA #1139: glk */ - if (IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1) && + if (bpc == 12 && IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1) && crtc_state->base.adjusted_mode.htotal > 5460) return false; @@ -1621,7 +1641,8 @@ static bool hdmi_12bpc_possible(const struct intel_crtc_state *crtc_state) static bool intel_hdmi_ycbcr420_config(struct drm_connector *connector, struct intel_crtc_state *config, - int *clock_12bpc, int *clock_8bpc) + int *clock_12bpc, int *clock_10bpc, + int *clock_8bpc) { struct intel_crtc *intel_crtc = to_intel_crtc(config->base.crtc); @@ -1633,6 +1654,7 @@ intel_hdmi_ycbcr420_config(struct drm_connector *connector, /* YCBCR420 TMDS rate requirement is half the pixel clock */ config->port_clock /= 2; *clock_12bpc /= 2; + *clock_10bpc /= 2; *clock_8bpc /= 2; config->ycbcr420 = true; @@ -1660,6 +1682,7 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, struct intel_digital_connector_state *intel_conn_state = to_intel_digital_connector_state(conn_state); int clock_8bpc = pipe_config->base.adjusted_mode.crtc_clock; + int clock_10bpc = clock_8bpc * 5 / 4; int clock_12bpc = clock_8bpc * 3 / 2; int desired_bpp; bool force_dvi = intel_conn_state->force_audio == HDMI_AUDIO_OFF_DVI; @@ -1683,12 +1706,14 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) { pipe_config->pixel_multiplier = 2; clock_8bpc *= 2; + clock_10bpc *= 2; clock_12bpc *= 2; } if (drm_mode_is_420_only(&connector->display_info, adjusted_mode)) { if (!intel_hdmi_ycbcr420_config(connector, pipe_config, - &clock_12bpc, &clock_8bpc)) { + &clock_12bpc, &clock_10bpc, + &clock_8bpc)) { DRM_ERROR("Can't support YCBCR420 output\n"); return false; } @@ -1706,18 +1731,25 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, } /* - * HDMI is either 12 or 8, so if the display lets 10bpc sneak - * through, clamp it down. Note that g4x/vlv don't support 12bpc hdmi - * outputs. We also need to check that the higher clock still fits - * within limits. + * Note that g4x/vlv don't support 12bpc hdmi outputs. We also need + * to check that the higher clock still fits within limits. */ - if (hdmi_12bpc_possible(pipe_config) && - hdmi_port_clock_valid(intel_hdmi, clock_12bpc, true, force_dvi) == MODE_OK) { + if (hdmi_deep_color_possible(pipe_config, 12) && + hdmi_port_clock_valid(intel_hdmi, clock_12bpc, + true, force_dvi) == MODE_OK) { DRM_DEBUG_KMS("picking bpc to 12 for HDMI output\n"); desired_bpp = 12*3; /* Need to adjust the port link by 1.5x for 12bpc. */ pipe_config->port_clock = clock_12bpc; + } else if (hdmi_deep_color_possible(pipe_config, 10) && + hdmi_port_clock_valid(intel_hdmi, clock_10bpc, + true, force_dvi) == MODE_OK) { + DRM_DEBUG_KMS("picking bpc to 10 for HDMI output\n"); + desired_bpp = 10 * 3; + + /* Need to adjust the port link by 1.25x for 10bpc. */ + pipe_config->port_clock = clock_10bpc; } else { DRM_DEBUG_KMS("picking bpc to 8 for HDMI output\n"); desired_bpp = 8*3;