From patchwork Wed Apr 29 19:54:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Sean Paul X-Patchwork-Id: 11518197 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 DBAF114DD for ; Wed, 29 Apr 2020 19:55:25 +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 BAA6D206D9 for ; Wed, 29 Apr 2020 19:55:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=poorly.run header.i=@poorly.run header.b="I0a947h9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BAA6D206D9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=poorly.run 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 E3E566F3A3; Wed, 29 Apr 2020 19:55:16 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-qt1-x843.google.com (mail-qt1-x843.google.com [IPv6:2607:f8b0:4864:20::843]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6247A6F3A1 for ; Wed, 29 Apr 2020 19:55:14 +0000 (UTC) Received: by mail-qt1-x843.google.com with SMTP id x12so2984763qts.9 for ; Wed, 29 Apr 2020 12:55:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=poorly.run; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=anbhnU1y95Et0WfYq6UdUYHVZPf19turBoPeHsylHUo=; b=I0a947h9kmlW2699UsOqSmnKX2cCrxVHxF4XhtZ891xJLJxZMXYe5G88vs9n2oNGA6 GFJqMKIy2wQMWgSDDr2IIz9+8mleMK7C+0AV+gm25dih99aiDQ5njrhFr+1liU3Kwm+T KY8YQwbnhWXo8we49N4yjLw+ge7Lz/9sKnboU0AdkEUENQNnvUiy+fPsSdxkaC6a2lDJ n3AtYu/xpb05/xpEeYw9kG2IPn+HbUV4EBSunWRyO/KHEqt7uUz5gcYBJ1sN/MssLv3j +rNcjgV3sVQ04vOhJWFOnJqbBU47yliIxQur3j0s8tWgE4oIYdO7g1xcKVEmDta2g6+d AG2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=anbhnU1y95Et0WfYq6UdUYHVZPf19turBoPeHsylHUo=; b=BctT4XNLVaz/B7h95ts0L6mKvH73zbbmFlFwItoPH8b/BIzFrrfHgFxGcXMrbEQXhe pCECQ/WiUXMwjAdYPb8EK/yWks8pWteuyJQIx2E7t5rYgPnhxHvxceNKreUfni4bwI7y g0AZb9PJuGC5z8lWQEP6Wbjxs2PR36988qutY75IvOnPLsPVTdjUQXSYwVcvhju+HmmL 1qyYiSq/DlZQHJVm/6tlIHvGyV2OcvYAsfMAjEoAnO7dzg5a3PMG9Jj4yMpL4/+qVhSN udFTQAQ0tlmvLYcI8+gCG0VI7P/jNuE4X9Sx7G5VYgDWAgrVMns9I4fE1t+wYZ1gk+YO Fqsw== X-Gm-Message-State: AGi0PuY3HiIb29C6GsDAiZtVNlduX9rQiMBTG9wGuBxF1RBuZ304UxAM e1plvnIUg7ofaJuheq4c5DdCJQ== X-Google-Smtp-Source: APiQypIsMTiXOkv+gjAqsN/AokrdBpaUHhHsntitm9DyoEbkkDpXdk86bjJ6dVqdIfYjSLwyBcyXVA== X-Received: by 2002:aed:31e2:: with SMTP id 89mr34040038qth.83.1588190113320; Wed, 29 Apr 2020 12:55:13 -0700 (PDT) Received: from localhost (mobile-166-170-55-34.mycingular.net. [166.170.55.34]) by smtp.gmail.com with ESMTPSA id e4sm138229qkn.11.2020.04.29.12.55.12 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 29 Apr 2020 12:55:12 -0700 (PDT) From: Sean Paul To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Date: Wed, 29 Apr 2020 15:54:51 -0400 Message-Id: <20200429195502.39919-6-sean@poorly.run> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200429195502.39919-1-sean@poorly.run> References: <20200429195502.39919-1-sean@poorly.run> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v6 05/16] drm/i915: Use the cpu_transcoder in intel_hdcp to toggle HDCP signalling 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: , Cc: daniel.vetter@ffwll.ch, seanpaul@chromium.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Sean Paul Instead of using intel_dig_port's encoder pipe to determine which transcoder to toggle signalling on, use the cpu_transcoder field already stored in intel_hdmi. This is particularly important for MST. Suggested-by: Ville Syrjälä Reviewed-by: Ramalingam C Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20191212190230.188505-6-sean@poorly.run #v2 Link: https://patchwork.freedesktop.org/patch/msgid/20200117193103.156821-6-sean@poorly.run #v3 Link: https://patchwork.freedesktop.org/patch/msgid/20200218220242.107265-6-sean@poorly.run #v4 Link: https://patchwork.freedesktop.org/patch/msgid/20200305201236.152307-6-sean@poorly.run #v5 Changes in v2: -Added to the set Changes in v3: -s/hdcp/hdmi/ in commit msg (Ram) Changes in v4: -Rebased on intel_de_(read|write) change Changes in v5: -Update hdcp->cpu_transcoder in intel_hdcp_enable so it works with pipe != 0 Changes in v6: -None --- drivers/gpu/drm/i915/display/intel_ddi.c | 13 +++---------- drivers/gpu/drm/i915/display/intel_ddi.h | 2 ++ .../gpu/drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_dp.c | 1 + drivers/gpu/drm/i915/display/intel_hdcp.c | 16 +++++++++------- drivers/gpu/drm/i915/display/intel_hdmi.c | 16 +++++++++++----- 6 files changed, 27 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 08844ba9dcb5..dc5d39ae4743 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -1692,12 +1692,12 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state } int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder, + enum transcoder cpu_transcoder, bool enable) { struct drm_device *dev = intel_encoder->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); intel_wakeref_t wakeref; - enum pipe pipe = 0; int ret = 0; u32 tmp; @@ -1706,19 +1706,12 @@ int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder, if (drm_WARN_ON(dev, !wakeref)) return -ENXIO; - if (drm_WARN_ON(dev, - !intel_encoder->get_hw_state(intel_encoder, &pipe))) { - ret = -EIO; - goto out; - } - - tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(pipe)); + tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder)); if (enable) tmp |= TRANS_DDI_HDCP_SIGNALLING; else tmp &= ~TRANS_DDI_HDCP_SIGNALLING; - intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(pipe), tmp); -out: + intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder), tmp); intel_display_power_put(dev_priv, intel_encoder->power_domain, wakeref); return ret; } diff --git a/drivers/gpu/drm/i915/display/intel_ddi.h b/drivers/gpu/drm/i915/display/intel_ddi.h index fbdf8ddde486..fc2e6889be11 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.h +++ b/drivers/gpu/drm/i915/display/intel_ddi.h @@ -16,6 +16,7 @@ struct intel_crtc_state; struct intel_dp; struct intel_dpll_hw_state; struct intel_encoder; +enum transcoder; void intel_ddi_fdi_post_disable(struct intel_atomic_state *state, struct intel_encoder *intel_encoder, @@ -46,6 +47,7 @@ u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder); u8 intel_ddi_dp_pre_emphasis_max(struct intel_encoder *encoder, u8 voltage_swing); int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder, + enum transcoder cpu_transcoder, bool enable); void icl_sanitize_encoder_pll_mapping(struct intel_encoder *encoder); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 9488449e4b94..383046050c37 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -314,6 +314,7 @@ struct intel_hdcp_shim { /* Enables HDCP signalling on the port */ int (*toggle_signalling)(struct intel_digital_port *intel_dig_port, + enum transcoder cpu_transcoder, bool enable); /* Ensures the link is still protected */ diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index f33b3e273e05..39c1304fe071 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6752,6 +6752,7 @@ int intel_dp_hdcp_read_v_prime_part(struct intel_digital_port *intel_dig_port, static int intel_dp_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port, + enum transcoder cpu_transcoder, bool enable) { /* Not used for single stream DisplayPort setups */ diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 20175a53643d..41986a3e192c 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -713,7 +713,7 @@ static int intel_hdcp_auth(struct intel_connector *connector) intel_de_write(dev_priv, HDCP_REP_CTL, intel_hdcp_get_repeater_ctl(dev_priv, cpu_transcoder, port)); - ret = shim->toggle_signalling(intel_dig_port, true); + ret = shim->toggle_signalling(intel_dig_port, cpu_transcoder, true); if (ret) return ret; @@ -816,7 +816,8 @@ static int _intel_hdcp_disable(struct intel_connector *connector) intel_de_write(dev_priv, HDCP_REP_CTL, intel_de_read(dev_priv, HDCP_REP_CTL) & ~repeater_ctl); - ret = hdcp->shim->toggle_signalling(intel_dig_port, false); + ret = hdcp->shim->toggle_signalling(intel_dig_port, cpu_transcoder, + false); if (ret) { drm_err(&dev_priv->drm, "Failed to disable HDCP signalling\n"); return ret; @@ -1600,7 +1601,8 @@ static int hdcp2_enable_encryption(struct intel_connector *connector) intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & LINK_ENCRYPTION_STATUS); if (hdcp->shim->toggle_signalling) { - ret = hdcp->shim->toggle_signalling(intel_dig_port, true); + ret = hdcp->shim->toggle_signalling(intel_dig_port, + cpu_transcoder, true); if (ret) { drm_err(&dev_priv->drm, "Failed to enable HDCP signalling. %d\n", @@ -1650,7 +1652,8 @@ static int hdcp2_disable_encryption(struct intel_connector *connector) drm_dbg_kms(&dev_priv->drm, "Disable Encryption Timedout"); if (hdcp->shim->toggle_signalling) { - ret = hdcp->shim->toggle_signalling(intel_dig_port, false); + ret = hdcp->shim->toggle_signalling(intel_dig_port, + cpu_transcoder, false); if (ret) { drm_err(&dev_priv->drm, "Failed to disable HDCP signalling. %d\n", @@ -2033,11 +2036,10 @@ int intel_hdcp_enable(struct intel_connector *connector, drm_WARN_ON(&dev_priv->drm, hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED); hdcp->content_type = content_type; + hdcp->cpu_transcoder = cpu_transcoder; - if (INTEL_GEN(dev_priv) >= 12) { - hdcp->cpu_transcoder = cpu_transcoder; + if (INTEL_GEN(dev_priv) >= 12) hdcp->port_data.fw_tc = intel_get_mei_fw_tc(cpu_transcoder); - } /* * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 010f37240710..5820a6e94273 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1477,7 +1477,8 @@ int intel_hdmi_hdcp_read_v_prime_part(struct intel_digital_port *intel_dig_port, return ret; } -static int kbl_repositioning_enc_en_signal(struct intel_connector *connector) +static int kbl_repositioning_enc_en_signal(struct intel_connector *connector, + enum transcoder cpu_transcoder) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector); @@ -1494,13 +1495,15 @@ static int kbl_repositioning_enc_en_signal(struct intel_connector *connector) usleep_range(25, 50); } - ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, false); + ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, + cpu_transcoder, false); if (ret) { drm_err(&dev_priv->drm, "Disable HDCP signalling failed (%d)\n", ret); return ret; } - ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, true); + ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, + cpu_transcoder, true); if (ret) { drm_err(&dev_priv->drm, "Enable HDCP signalling failed (%d)\n", ret); @@ -1512,6 +1515,7 @@ static int kbl_repositioning_enc_en_signal(struct intel_connector *connector) static int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port, + enum transcoder cpu_transcoder, bool enable) { struct intel_hdmi *hdmi = &intel_dig_port->hdmi; @@ -1522,7 +1526,8 @@ int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port, if (!enable) usleep_range(6, 60); /* Bspec says >= 6us */ - ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, enable); + ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, + cpu_transcoder, enable); if (ret) { drm_err(&dev_priv->drm, "%s HDCP signalling failed (%d)\n", enable ? "Enable" : "Disable", ret); @@ -1534,7 +1539,8 @@ int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port, * opportunity and enc_en signalling in KABYLAKE. */ if (IS_KABYLAKE(dev_priv) && enable) - return kbl_repositioning_enc_en_signal(connector); + return kbl_repositioning_enc_en_signal(connector, + cpu_transcoder); return 0; }