From patchwork Thu Oct 29 19:36:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Navare, Manasi" X-Patchwork-Id: 11867393 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D296CC2D0A3 for ; Thu, 29 Oct 2020 19:35:03 +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 45C1621D7D for ; Thu, 29 Oct 2020 19:35:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 45C1621D7D 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 3475C6E8E9; Thu, 29 Oct 2020 19:35:02 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id AC47A6E8EF for ; Thu, 29 Oct 2020 19:35:00 +0000 (UTC) IronPort-SDR: MotESH4nP3WkF6eH1XhONCizXRZLV90ZfFBhsIcXHoL7gcvbOtU+AwnQDx+s1Yririk1im0IRM WN5bR3pjB8wQ== X-IronPort-AV: E=McAfee;i="6000,8403,9789"; a="156272321" X-IronPort-AV: E=Sophos;i="5.77,430,1596524400"; d="scan'208";a="156272321" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2020 12:34:49 -0700 IronPort-SDR: BVGrlZMF19i3nMyOAMG3sb7wO1av+DKnSntw4goZe//qRO4lj8ujlOIWGfGA9GEjESP1/NBJWo a+3hnaQBa8+A== X-IronPort-AV: E=Sophos;i="5.77,430,1596524400"; d="scan'208";a="323820143" Received: from labuser-z97x-ud5h.jf.intel.com ([10.165.21.211]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-SHA; 29 Oct 2020 12:34:49 -0700 From: Manasi Navare To: intel-gfx@lists.freedesktop.org Date: Thu, 29 Oct 2020 12:36:41 -0700 Message-Id: <20201029193641.23199-6-manasi.d.navare@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20201029193641.23199-1-manasi.d.navare@intel.com> References: <20201029193641.23199-1-manasi.d.navare@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v4 6/6] drm/i915/dp: Allow big joiner modes in intel_dp_mode_valid(), v3. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 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" From: Maarten Lankhorst Small changes to intel_dp_mode_valid(), allow listing modes that can only be supported in the bigjoiner configuration, which is not supported yet. v12: * slice_count logic simplify (Ville) * Fix unnecessary changes in downstream_mode_valid (Ville) v11: * Make intel_dp_can_bigjoiner non static so it can be used in intel_display (Manasi) v10: * Simplify logic (Ville) * Allow bigjoiner on edp (Ville) v9: * Restric Bigjoiner on PORT A (Ville) v8: * use source dotclock for max dotclock (Manasi) v7: * Add can_bigjoiner() helper (Ville) * Pass bigjoiner to plane_size validation (Ville) v6: * Rebase after dp_downstream mode valid changes (Manasi) v5: * Increase max plane width to support 8K with bigjoiner (Maarten) v4: * Rebase (Manasi) Changes since v1: - Disallow bigjoiner on eDP. Changes since v2: - Rename intel_dp_downstream_max_dotclock to intel_dp_max_dotclock, and split off the downstream and source checking to its own function. (Ville) v3: * Rebase (Manasi) Signed-off-by: Manasi Navare Signed-off-by: Maarten Lankhorst --- drivers/gpu/drm/i915/display/intel_display.c | 5 +- drivers/gpu/drm/i915/display/intel_display.h | 3 +- drivers/gpu/drm/i915/display/intel_dp.c | 77 ++++++++++++++++---- drivers/gpu/drm/i915/display/intel_dp.h | 1 + drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 +- drivers/gpu/drm/i915/display/intel_dsi.c | 2 +- drivers/gpu/drm/i915/display/intel_hdmi.c | 2 +- 7 files changed, 72 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 233bd894c5c3..45d8deafe89a 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -17770,7 +17770,8 @@ intel_mode_valid(struct drm_device *dev, enum drm_mode_status intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv, - const struct drm_display_mode *mode) + const struct drm_display_mode *mode, + bool bigjoiner) { int plane_width_max, plane_height_max; @@ -17787,7 +17788,7 @@ intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv, * too big for that. */ if (INTEL_GEN(dev_priv) >= 11) { - plane_width_max = 5120; + plane_width_max = 5120 << bigjoiner; plane_height_max = 4320; } else { plane_width_max = 5120; diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 1b946209e06b..4f8dee9dfb4d 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -497,7 +497,8 @@ u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv, bool intel_plane_can_remap(const struct intel_plane_state *plane_state); enum drm_mode_status intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv, - const struct drm_display_mode *mode); + const struct drm_display_mode *mode, + bool bigjoiner); enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port); bool is_trans_port_sync_mode(const struct intel_crtc_state *state); diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 2c29e7f5281b..2336b204a3e9 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -254,6 +254,17 @@ intel_dp_max_data_rate(int max_link_clock, int max_lanes) return max_link_clock * max_lanes; } +bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp) +{ + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); + struct intel_encoder *encoder = &intel_dig_port->base; + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + + return INTEL_GEN(dev_priv) >= 12 || + (INTEL_GEN(dev_priv) == 11 && + encoder->port != PORT_A); +} + static int cnl_max_source_rate(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); @@ -519,7 +530,8 @@ small_joiner_ram_size_bits(struct drm_i915_private *i915) static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, u32 link_clock, u32 lane_count, - u32 mode_clock, u32 mode_hdisplay) + u32 mode_clock, u32 mode_hdisplay, + bool bigjoiner) { u32 bits_per_pixel, max_bpp_small_joiner_ram; int i; @@ -537,6 +549,10 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, /* Small Joiner Check: output bpp <= joiner RAM (bits) / Horiz. width */ max_bpp_small_joiner_ram = small_joiner_ram_size_bits(i915) / mode_hdisplay; + + if (bigjoiner) + max_bpp_small_joiner_ram *= 2; + drm_dbg_kms(&i915->drm, "Max small joiner bpp: %u\n", max_bpp_small_joiner_ram); @@ -546,6 +562,15 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, */ bits_per_pixel = min(bits_per_pixel, max_bpp_small_joiner_ram); + if (bigjoiner) { + u32 max_bpp_bigjoiner = + i915->max_cdclk_freq * 48 / + intel_dp_mode_to_fec_clock(mode_clock); + + DRM_DEBUG_KMS("Max big joiner bpp: %u\n", max_bpp_bigjoiner); + bits_per_pixel = min(bits_per_pixel, max_bpp_bigjoiner); + } + /* Error out if the max bpp is less than smallest allowed valid bpp */ if (bits_per_pixel < valid_dsc_bpp[0]) { drm_dbg_kms(&i915->drm, "Unsupported BPP %u, min %u\n", @@ -568,7 +593,8 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, } static u8 intel_dp_dsc_get_slice_count(struct intel_dp *intel_dp, - int mode_clock, int mode_hdisplay) + int mode_clock, int mode_hdisplay, + bool bigjoiner) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); u8 min_slice_count, i; @@ -595,12 +621,18 @@ static u8 intel_dp_dsc_get_slice_count(struct intel_dp *intel_dp, /* Find the closest match to the valid slice count values */ for (i = 0; i < ARRAY_SIZE(valid_dsc_slicecount); i++) { - if (valid_dsc_slicecount[i] > - drm_dp_dsc_sink_max_slice_count(intel_dp->dsc_dpcd, - false)) + u8 test_slice_count = valid_dsc_slicecount[i] << bigjoiner; + + if (test_slice_count > + drm_dp_dsc_sink_max_slice_count(intel_dp->dsc_dpcd, false)) break; - if (min_slice_count <= valid_dsc_slicecount[i]) - return valid_dsc_slicecount[i]; + + /* big joiner needs small joiner to be enabled */ + if (bigjoiner && test_slice_count < 4) + continue; + + if (min_slice_count <= test_slice_count) + return test_slice_count; } drm_dbg_kms(&i915->drm, "Unsupported Slice Count %d\n", @@ -717,6 +749,7 @@ intel_dp_mode_valid(struct drm_connector *connector, u16 dsc_max_output_bpp = 0; u8 dsc_slice_count = 0; enum drm_mode_status status; + bool dsc = false, bigjoiner = false; if (mode->flags & DRM_MODE_FLAG_DBLSCAN) return MODE_NO_DBLESCAN; @@ -737,6 +770,13 @@ intel_dp_mode_valid(struct drm_connector *connector, if (mode->clock < 10000) return MODE_CLOCK_LOW; + if (target_clock > max_dotclk && intel_dp_can_bigjoiner(intel_dp)) { + bigjoiner = true; + max_dotclk *= 2; + } + if (target_clock > max_dotclk) + return MODE_CLOCK_HIGH; + max_link_clock = intel_dp_max_link_rate(intel_dp); max_lanes = intel_dp_max_lane_count(intel_dp); @@ -765,16 +805,23 @@ intel_dp_mode_valid(struct drm_connector *connector, max_link_clock, max_lanes, target_clock, - mode->hdisplay) >> 4; + mode->hdisplay, + bigjoiner) >> 4; dsc_slice_count = intel_dp_dsc_get_slice_count(intel_dp, target_clock, - mode->hdisplay); + mode->hdisplay, + bigjoiner); } + + dsc = dsc_max_output_bpp && dsc_slice_count; } - if ((mode_rate > max_rate && !(dsc_max_output_bpp && dsc_slice_count)) || - target_clock > max_dotclk) + /* big joiner configuration needs DSC */ + if (bigjoiner && !dsc) + return MODE_CLOCK_HIGH; + + if (mode_rate > max_rate && !dsc) return MODE_CLOCK_HIGH; status = intel_dp_mode_valid_downstream(intel_connector, @@ -782,7 +829,7 @@ intel_dp_mode_valid(struct drm_connector *connector, if (status != MODE_OK) return status; - return intel_mode_valid_max_plane_size(dev_priv, mode); + return intel_mode_valid_max_plane_size(dev_priv, mode, bigjoiner); } u32 intel_dp_pack_aux(const u8 *src, int src_bytes) @@ -2297,11 +2344,13 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, pipe_config->port_clock, pipe_config->lane_count, adjusted_mode->crtc_clock, - adjusted_mode->crtc_hdisplay); + adjusted_mode->crtc_hdisplay, + false); dsc_dp_slice_count = intel_dp_dsc_get_slice_count(intel_dp, adjusted_mode->crtc_clock, - adjusted_mode->crtc_hdisplay); + adjusted_mode->crtc_hdisplay, + false); if (!dsc_max_output_bpp || !dsc_dp_slice_count) { drm_dbg_kms(&dev_priv->drm, "Compressed BPP/Slice Count not supported\n"); diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index 3f862b4fd34f..b871a09b6901 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -106,6 +106,7 @@ bool intel_dp_source_supports_hbr3(struct intel_dp *intel_dp); bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp); 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_can_bigjoiner(struct intel_dp *intel_dp); 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, diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index c8fcec4d0788..0c8684634fca 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -714,7 +714,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, return 0; } - *status = intel_mode_valid_max_plane_size(dev_priv, mode); + *status = intel_mode_valid_max_plane_size(dev_priv, mode, false); return 0; } diff --git a/drivers/gpu/drm/i915/display/intel_dsi.c b/drivers/gpu/drm/i915/display/intel_dsi.c index afa4e6817e8c..f453ceb8d149 100644 --- a/drivers/gpu/drm/i915/display/intel_dsi.c +++ b/drivers/gpu/drm/i915/display/intel_dsi.c @@ -75,7 +75,7 @@ enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector, return MODE_CLOCK_HIGH; } - return intel_mode_valid_max_plane_size(dev_priv, mode); + return intel_mode_valid_max_plane_size(dev_priv, mode, false); } struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi, diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index f90838bc74fb..82674a8853c6 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -2274,7 +2274,7 @@ intel_hdmi_mode_valid(struct drm_connector *connector, if (status != MODE_OK) return status; - return intel_mode_valid_max_plane_size(dev_priv, mode); + return intel_mode_valid_max_plane_size(dev_priv, mode, false); } bool intel_hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state,