From patchwork Fri Nov 5 03:04:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Paul X-Patchwork-Id: 12604049 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0D03C433EF for ; Fri, 5 Nov 2021 03:04:48 +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 8FA8460EB8 for ; Fri, 5 Nov 2021 03:04:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8FA8460EB8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=poorly.run Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 209F46E4F8; Fri, 5 Nov 2021 03:04:46 +0000 (UTC) Received: from mail-qk1-x72a.google.com (mail-qk1-x72a.google.com [IPv6:2607:f8b0:4864:20::72a]) by gabe.freedesktop.org (Postfix) with ESMTPS id 54AF46E4F8 for ; Fri, 5 Nov 2021 03:04:44 +0000 (UTC) Received: by mail-qk1-x72a.google.com with SMTP id bk22so7660190qkb.6 for ; Thu, 04 Nov 2021 20:04:44 -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=deAn1C6wxx2ttaAHmC7zvnLzmZ3vmt8nizemmxGBxAQ=; b=WF5WH/+fEoE/PBXea3WJ3ucbgmTP2tCfHBTYwGHcZaUGkEiFUTeiFr5xl2K7T7rPU8 sj+7GXKyHB459kTMCvEVS+FRBNkJdoV2GfnySa1swVO6hgu/KUYOMen/qrl/8zzPBHNj frRcveh0Qc/9l3xYRA0X1OU85BKH21MdWDAriFpj20uJhBIRY6ayrCEzw8gI3Z99eBQl o2M1cJimDEyprATW6NvzqSvtpLon59wUQD+Jhuq+fFB0EaJLcVHBhlPHT9435+oZhr5u V6sVQz/2/oVXGP86a0brscSPwXqLRstaB9uDNw6Sc9PTzra80SIXAmJ4RIQX/0tc2qUk WecQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=deAn1C6wxx2ttaAHmC7zvnLzmZ3vmt8nizemmxGBxAQ=; b=QiPTcy3tCXrM8jMIVkKP++z8M5ZjrsSBynSsZwT78ENWYypi2fYevwcQAHICuJA0Q/ qQ+e9GuqLrbfA22YoyCv0dAMP+TGJXqiAbskjeHIXmvd3ygh6O817EuDPXNfFF1my3+M vXgpQfYCE8Lu+nEQyNcwU2gsnmZj5u4L3GBQAiJHEYmcWPzZmdKohgcz+ZSh/rdLWmnr 8Jeoc46SYA7YKv79YUaktTdifjWGX0EZgVrIj9HEPCHRzxxV9MsPV6PEYzNEJkzTxMpv rZvXufn6nQ0lapp6yND1U9fmSlaDZ4ZBrRUTPVLEloHjmCX+QpxpMwJ4mNWLcobaGbPn a5HQ== X-Gm-Message-State: AOAM5326ef4a2vtnts/XEPUmJxNfyadEV6G+KpwwVIvf/5ZvUukuN0lL S/dZ/P/Jkze+cam+uItQetQmTHX9tLDREw== X-Google-Smtp-Source: ABdhPJzPytpaG9hvAG4Pmvfos5QnqPUhYqrp2QmcpRTYau4mDqz7jSnKJDyjFtc2pCcjZfrqu71Heg== X-Received: by 2002:a05:620a:408c:: with SMTP id f12mr45098695qko.471.1636081483213; Thu, 04 Nov 2021 20:04:43 -0700 (PDT) Received: from localhost ([167.100.64.199]) by smtp.gmail.com with ESMTPSA id f7sm4970816qkp.107.2021.11.04.20.04.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Nov 2021 20:04:42 -0700 (PDT) From: Sean Paul To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH v4 01/14] drm/hdcp: Add drm_hdcp_atomic_check() Date: Thu, 4 Nov 2021 23:04:18 -0400 Message-Id: <20211105030434.2828845-2-sean@poorly.run> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211105030434.2828845-1-sean@poorly.run> References: <20211105030434.2828845-1-sean@poorly.run> 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: Tvrtko Ursulin , jani.nikula@intel.com, abhinavk@codeaurora.org, swboyd@chromium.org, David Airlie , Sean Paul , Thomas Zimmermann , Rodrigo Vivi , bjorn.andersson@linaro.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Sean Paul This patch moves the hdcp atomic check from i915 to drm_hdcp so other drivers can use it. No functional changes, just cleaned up some of the code when moving it over. Acked-by: Jani Nikula Acked-by: Jani Nikula Reviewed-by: Abhinav Kumar Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210913175747.47456-2-sean@poorly.run #v1 Link: https://patchwork.freedesktop.org/patch/msgid/20210915203834.1439-2-sean@poorly.run #v2 Link: https://patchwork.freedesktop.org/patch/msgid/20211001151145.55916-2-sean@poorly.run #v3 Changes in v2: -None Changes in v3: -None Changes in v4: -None --- drivers/gpu/drm/drm_hdcp.c | 71 ++++++++++++++++++++- drivers/gpu/drm/i915/display/intel_atomic.c | 4 +- drivers/gpu/drm/i915/display/intel_hdcp.c | 47 -------------- drivers/gpu/drm/i915/display/intel_hdcp.h | 3 - include/drm/drm_hdcp.h | 3 + 5 files changed, 75 insertions(+), 53 deletions(-) diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c index ca9b8f697202..522326b03e66 100644 --- a/drivers/gpu/drm/drm_hdcp.c +++ b/drivers/gpu/drm/drm_hdcp.c @@ -13,13 +13,14 @@ #include #include +#include +#include #include #include #include #include #include #include -#include #include "drm_internal.h" @@ -421,3 +422,71 @@ void drm_hdcp_update_content_protection(struct drm_connector *connector, dev->mode_config.content_protection_property); } EXPORT_SYMBOL(drm_hdcp_update_content_protection); + +/** + * drm_hdcp_atomic_check - Helper for drivers to call during connector->atomic_check + * + * @state: pointer to the atomic state being checked + * @connector: drm_connector on which content protection state needs an update + * + * This function can be used by display drivers to perform an atomic check on the + * hdcp state elements. If hdcp state has changed, this function will set + * mode_changed on the crtc driving the connector so it can update its hardware + * to match the hdcp state. + */ +void drm_hdcp_atomic_check(struct drm_connector *connector, + struct drm_atomic_state *state) +{ + struct drm_connector_state *new_conn_state, *old_conn_state; + struct drm_crtc_state *new_crtc_state; + u64 old_hdcp, new_hdcp; + + old_conn_state = drm_atomic_get_old_connector_state(state, connector); + old_hdcp = old_conn_state->content_protection; + + new_conn_state = drm_atomic_get_new_connector_state(state, connector); + new_hdcp = new_conn_state->content_protection; + + if (!new_conn_state->crtc) { + /* + * If the connector is being disabled with CP enabled, mark it + * desired so it's re-enabled when the connector is brought back + */ + if (old_hdcp == DRM_MODE_CONTENT_PROTECTION_ENABLED) + new_conn_state->content_protection = + DRM_MODE_CONTENT_PROTECTION_DESIRED; + return; + } + + new_crtc_state = drm_atomic_get_new_crtc_state(state, + new_conn_state->crtc); + /* + * Fix the HDCP uapi content protection state in case of modeset. + * FIXME: As per HDCP content protection property uapi doc, an uevent() + * need to be sent if there is transition from ENABLED->DESIRED. + */ + if (drm_atomic_crtc_needs_modeset(new_crtc_state) && + (old_hdcp == DRM_MODE_CONTENT_PROTECTION_ENABLED && + new_hdcp != DRM_MODE_CONTENT_PROTECTION_UNDESIRED)) + new_conn_state->content_protection = + DRM_MODE_CONTENT_PROTECTION_DESIRED; + + /* + * Nothing to do if content type is unchanged and one of: + * - state didn't change + * - HDCP was activated since the last commit + * - attempting to set to desired while already enabled + */ + if (old_hdcp == new_hdcp || + (old_hdcp == DRM_MODE_CONTENT_PROTECTION_DESIRED && + new_hdcp == DRM_MODE_CONTENT_PROTECTION_ENABLED) || + (old_hdcp == DRM_MODE_CONTENT_PROTECTION_ENABLED && + new_hdcp == DRM_MODE_CONTENT_PROTECTION_DESIRED)) { + if (old_conn_state->hdcp_content_type == + new_conn_state->hdcp_content_type) + return; + } + + new_crtc_state->mode_changed = true; +} +EXPORT_SYMBOL(drm_hdcp_atomic_check); diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index b4e7ac51aa31..1e306e8427ec 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -32,13 +32,13 @@ #include #include #include +#include #include #include "intel_atomic.h" #include "intel_cdclk.h" #include "intel_display_types.h" #include "intel_global_state.h" -#include "intel_hdcp.h" #include "intel_psr.h" #include "skl_universal_plane.h" @@ -122,7 +122,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn, to_intel_digital_connector_state(old_state); struct drm_crtc_state *crtc_state; - intel_hdcp_atomic_check(conn, old_state, new_state); + drm_hdcp_atomic_check(conn, state); if (!new_state->crtc) return 0; diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 4509fe7438e8..f12790697e2d 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -2501,53 +2501,6 @@ void intel_hdcp_cleanup(struct intel_connector *connector) mutex_unlock(&hdcp->mutex); } -void intel_hdcp_atomic_check(struct drm_connector *connector, - struct drm_connector_state *old_state, - struct drm_connector_state *new_state) -{ - u64 old_cp = old_state->content_protection; - u64 new_cp = new_state->content_protection; - struct drm_crtc_state *crtc_state; - - if (!new_state->crtc) { - /* - * If the connector is being disabled with CP enabled, mark it - * desired so it's re-enabled when the connector is brought back - */ - if (old_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED) - new_state->content_protection = - DRM_MODE_CONTENT_PROTECTION_DESIRED; - return; - } - - crtc_state = drm_atomic_get_new_crtc_state(new_state->state, - new_state->crtc); - /* - * Fix the HDCP uapi content protection state in case of modeset. - * FIXME: As per HDCP content protection property uapi doc, an uevent() - * need to be sent if there is transition from ENABLED->DESIRED. - */ - if (drm_atomic_crtc_needs_modeset(crtc_state) && - (old_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED && - new_cp != DRM_MODE_CONTENT_PROTECTION_UNDESIRED)) - new_state->content_protection = - DRM_MODE_CONTENT_PROTECTION_DESIRED; - - /* - * Nothing to do if the state didn't change, or HDCP was activated since - * the last commit. And also no change in hdcp content type. - */ - if (old_cp == new_cp || - (old_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED && - new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) { - if (old_state->hdcp_content_type == - new_state->hdcp_content_type) - return; - } - - crtc_state->mode_changed = true; -} - /* Handles the CP_IRQ raised from the DP HDCP sink */ void intel_hdcp_handle_cp_irq(struct intel_connector *connector) { diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h b/drivers/gpu/drm/i915/display/intel_hdcp.h index 8f53b0c7fe5c..7c5fd84a7b65 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.h +++ b/drivers/gpu/drm/i915/display/intel_hdcp.h @@ -22,9 +22,6 @@ struct intel_digital_port; enum port; enum transcoder; -void intel_hdcp_atomic_check(struct drm_connector *connector, - struct drm_connector_state *old_state, - struct drm_connector_state *new_state); int intel_hdcp_init(struct intel_connector *connector, struct intel_digital_port *dig_port, const struct intel_hdcp_shim *hdcp_shim); diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index 0b1111e3228e..d49977a042e1 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -291,6 +291,7 @@ struct hdcp_srm_header { u8 srm_gen_no; } __packed; +struct drm_atomic_state; struct drm_device; struct drm_connector; @@ -300,6 +301,8 @@ int drm_connector_attach_content_protection_property( struct drm_connector *connector, bool hdcp_content_type); void drm_hdcp_update_content_protection(struct drm_connector *connector, u64 val); +void drm_hdcp_atomic_check(struct drm_connector *connector, + struct drm_atomic_state *state); /* Content Type classification for HDCP2.2 vs others */ #define DRM_MODE_HDCP_CONTENT_TYPE0 0