From patchwork Fri Jul 21 15:25:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sharma, Shashank" X-Patchwork-Id: 9857141 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 94EA2600F5 for ; Fri, 21 Jul 2017 15:22:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 89D30287CA for ; Fri, 21 Jul 2017 15:22:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7EAE6287F9; Fri, 21 Jul 2017 15:22:18 +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 21731287CA for ; Fri, 21 Jul 2017 15:22:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B462A6E812; Fri, 21 Jul 2017 15:22:17 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id C0B0A6E812 for ; Fri, 21 Jul 2017 15:22:15 +0000 (UTC) Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Jul 2017 08:22:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,390,1496127600"; d="scan'208";a="127788453" Received: from shashanks-linuxbox.iind.intel.com ([10.223.161.29]) by orsmga005.jf.intel.com with ESMTP; 21 Jul 2017 08:22:13 -0700 From: Shashank Sharma To: intel-gfx@lists.freedesktop.org, imre.deak@intel.com Date: Fri, 21 Jul 2017 20:55:06 +0530 Message-Id: <1500650709-14447-4-git-send-email-shashank.sharma@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1500650709-14447-1-git-send-email-shashank.sharma@intel.com> References: <1500650709-14447-1-git-send-email-shashank.sharma@intel.com> Cc: Daniel Vetter Subject: [Intel-gfx] [PATCH v5 3/6] drm/i915: prepare pipe for YCBCR420 output 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 To get HDMI YCBCR420 output, the PIPEMISC register should be programmed to: - Generate YCBCR output (bit 11) - In case of YCBCR420 outputs, it should be programmed in full blend mode to use the scaler in 5x3 ratio (bits 26 and 27) This patch: - Adds definition of these bits. - Programs PIPEMISC for YCBCR420 outputs. - Adds readouts to compare HW and SW states. V2: rebase V3: rebase V4: rebase V5: added r-b from Ander V6: Handle only YCBCR420 outputs (ville) V7: rebase V8: Addressed review comments from Ville - Add readouts for state->ycbcr420 and 420 pixel_clock. - Handle warning due to mismatch in clock for ycbcr420 clock. - Rename PIPEMISC macros to match the Bspec. - Add a debug print stating if YCBCR 4:2:0 output enabled. Added r-b from Ville V9: Addressed review comments from Imre: - Add 420 mode clock adjustment in intel_hdmi_mode_valid to prevent 420_only modes getting rejected for high clock. - Add port clock adjustment for ycbcr420 modes in ddi_get_clock - Rename macros as per Ville's suggestion. - Remove unnecessary wl changes. V10: Added r-b from Imre Cc: Ville Syrjala Cc: Ander Conselvan de Oliveira Cc: Daniel Vetter Cc: Imre Deak Reviewed-by: Ander Conselvan de Oliveira Reviewed-by: Ville Syrjala Reviewed-by: Imre Deak Signed-off-by: Shashank Sharma --- drivers/gpu/drm/i915/i915_reg.h | 3 +++ drivers/gpu/drm/i915/intel_ddi.c | 3 +++ drivers/gpu/drm/i915/intel_display.c | 14 ++++++++++++++ drivers/gpu/drm/i915/intel_hdmi.c | 3 +++ 4 files changed, 23 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c712d01..e5b4e2f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -5227,6 +5227,9 @@ enum { #define _PIPE_MISC_A 0x70030 #define _PIPE_MISC_B 0x71030 +#define PIPEMISC_YUV420_ENABLE (1<<27) +#define PIPEMISC_YUV420_MODE_FULL_BLEND (1<<26) +#define PIPEMISC_OUTPUT_COLORSPACE_YUV (1<<11) #define PIPEMISC_DITHER_BPC_MASK (7<<5) #define PIPEMISC_DITHER_8_BPC (0<<5) #define PIPEMISC_DITHER_10_BPC (1<<5) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index efb1358..d88731b 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1174,6 +1174,9 @@ static void ddi_dotclock_get(struct intel_crtc_state *pipe_config) else dotclock = pipe_config->port_clock; + if (pipe_config->ycbcr420) + dotclock = pipe_config->port_clock / 2; + if (pipe_config->pixel_multiplier) dotclock /= pipe_config->pixel_multiplier; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 05ba0e9..6473ecf 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8034,6 +8034,7 @@ static void haswell_set_pipemisc(struct drm_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(crtc->dev); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + struct intel_crtc_state *config = intel_crtc->config; if (IS_BROADWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 9) { u32 val = 0; @@ -8059,6 +8060,12 @@ static void haswell_set_pipemisc(struct drm_crtc *crtc) if (intel_crtc->config->dither) val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP; + if (config->ycbcr420) { + val |= PIPEMISC_OUTPUT_COLORSPACE_YUV | + PIPEMISC_YUV420_ENABLE | + PIPEMISC_YUV420_MODE_FULL_BLEND; + } + I915_WRITE(PIPEMISC(intel_crtc->pipe), val); } } @@ -9128,6 +9135,10 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc, pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX); } + if (IS_GEMINILAKE(dev_priv)) + pipe_config->ycbcr420 = I915_READ(PIPEMISC(crtc->pipe)) & + PIPEMISC_YUV420_ENABLE; + power_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); if (intel_display_power_get_if_enabled(dev_priv, power_domain)) { power_domain_mask |= BIT_ULL(power_domain); @@ -10731,6 +10742,9 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc, pipe_config->fdi_lanes, &pipe_config->fdi_m_n); + if (pipe_config->ycbcr420) + DRM_DEBUG_KMS("YCbCr 4:2:0 output enabled\n"); + if (intel_crtc_has_dp_encoder(pipe_config)) { intel_dump_m_n_config(pipe_config, "dp m_n", pipe_config->lane_count, &pipe_config->dp_m_n); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 6addef5..da9d1d3 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1295,6 +1295,9 @@ intel_hdmi_mode_valid(struct drm_connector *connector, if (mode->flags & DRM_MODE_FLAG_DBLCLK) clock *= 2; + if (drm_mode_is_420_only(&connector->display_info, mode)) + clock /= 2; + /* check if we can do 8bpc */ status = hdmi_port_clock_valid(hdmi, clock, true, force_dvi);