From patchwork Wed Apr 19 15:43:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Yacoub X-Patchwork-Id: 13217073 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id CA6BCC77B73 for ; Wed, 19 Apr 2023 15:43:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2555710EA0E; Wed, 19 Apr 2023 15:43:33 +0000 (UTC) Received: from mail-yb1-xb2c.google.com (mail-yb1-xb2c.google.com [IPv6:2607:f8b0:4864:20::b2c]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2163F10EA05 for ; Wed, 19 Apr 2023 15:43:29 +0000 (UTC) Received: by mail-yb1-xb2c.google.com with SMTP id j15so10947461ybl.10 for ; Wed, 19 Apr 2023 08:43:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1681919007; x=1684511007; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WdBfhJYK/VrguEZXNKjPqWoNlFHkeUpXMJFlYP7ZUic=; b=fMjOcRqECMl51GG/gC1AlQ5iUNNJWYegXBuQYKZhtOGDYQ+jwwES2bIYlQ9BxhHfcw WBQrmR3OXP+QynDALxLwf4BgLwROcYkX2uzOzJYo2mAD9fmzk6DC9yYIS+le6h7Mo1t6 WjIbDv86vAAuCtsdRn0BgiTy6mxunJsBVVWgE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681919007; x=1684511007; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=WdBfhJYK/VrguEZXNKjPqWoNlFHkeUpXMJFlYP7ZUic=; b=jF/eqtSvUC4E9CwAQLeKZaWaDcNuhBEF7IXnzyt/AceG2c+AimJ624drXI4JCWjCjz 0VYbpLuR6WnVZ8m+7LlGeNHX26FYoJq2orqFjNIcfcOMPJ/ZuQ0oay28zby7gQxaLgfL zulKd9W4VMEKsrZAH56BtFF6tV4wN9E7eznUTWe5lX5Nv700PxRT1MJfu1nbOrG+JaJ4 o17oMJmLT4lAjdPMawZOB2Vr7e5mtHvAAHLaqxclRL4ilEZ0H02Oh1hb2l70HlRnfu1U 1lH/YcN6XCOeB9RM0y1tQlUg3AppT5+Znoyx/nKGWq59c38dGdtqVKeSpFUvNVXr9Ges zDKQ== X-Gm-Message-State: AAQBX9euV4mkuhU+ShOjD08PcOv6bwa4Dt4LzwZc+Qa/yN+qJKXOVGv2 LWA8mYgk3WA7XHrgUTx3zYQvXg== X-Google-Smtp-Source: AKy350Z/X+Z6it70DAYGojdCJzm49jtIMwYGvIeTs3knJOisEFZGh+BbVSoi4jbq1ovKodIM76MIYg== X-Received: by 2002:a25:d88d:0:b0:b8f:48ef:7d89 with SMTP id p135-20020a25d88d000000b00b8f48ef7d89mr311733ybg.6.1681919007701; Wed, 19 Apr 2023 08:43:27 -0700 (PDT) Received: from localhost ([2620:0:1035:15:55c6:7cf1:a68:79b0]) by smtp.gmail.com with UTF8SMTPSA id w10-20020a05690204ea00b00b7767ca747csm4404634ybs.25.2023.04.19.08.43.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 Apr 2023 08:43:27 -0700 (PDT) From: Mark Yacoub X-Google-Original-From: Mark Yacoub To: David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin Date: Wed, 19 Apr 2023 11:43:11 -0400 Message-ID: <20230419154321.1993419-2-markyacoub@google.com> X-Mailer: git-send-email 2.40.0.634.g4ca3ef3211-goog In-Reply-To: <20230419154321.1993419-1-markyacoub@google.com> References: <20230419154321.1993419-1-markyacoub@google.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v10 01/10] drm/hdcp: Add drm_hdcp_atomic_check() 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: Jani Nikula , Mark Yacoub , intel-gfx@lists.freedesktop.org, dianders@chromium.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, seanpaul@chromium.org, dmitry.baryshkov@linaro.org, freedreno@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Sean Paul Move 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 Reviewed-by: Rodrigo Vivi Reviewed-by: Dmitry Baryshkov Signed-off-by: Sean Paul Signed-off-by: Mark Yacoub --- Changes in v2: -None Changes in v3: -None Changes in v4: -None Changes in v5: -None Changes in v6: -Rebase: move helper from drm_hdcp.c to drm_hdcp_helper.c Changes in v7: -Removed links to patch from commit msg (Dmitry Baryshkov) drivers/gpu/drm/display/drm_hdcp_helper.c | 64 +++++++++++++++++++++ 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/display/drm_hdcp_helper.h | 3 + 5 files changed, 69 insertions(+), 52 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdcp_helper.c b/drivers/gpu/drm/display/drm_hdcp_helper.c index e78999c72bd77..7ca390b3ea106 100644 --- a/drivers/gpu/drm/display/drm_hdcp_helper.c +++ b/drivers/gpu/drm/display/drm_hdcp_helper.c @@ -20,6 +20,7 @@ #include #include #include +#include static inline void drm_hdcp_print_ksv(const u8 *ksv) { @@ -419,3 +420,66 @@ 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); + 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 a9a3f3715279d..e9d00b6a63d39 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -32,6 +32,7 @@ #include #include #include +#include #include "i915_drv.h" #include "i915_reg.h" @@ -39,7 +40,6 @@ #include "intel_cdclk.h" #include "intel_display_types.h" #include "intel_global_state.h" -#include "intel_hdcp.h" #include "intel_psr.h" #include "intel_fb.h" #include "skl_universal_plane.h" @@ -124,7 +124,7 @@ 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 6406fd487ee52..396d2cef000aa 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -2524,53 +2524,6 @@ 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 8f53b0c7fe5cf..7c5fd84a7b65a 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/display/drm_hdcp_helper.h b/include/drm/display/drm_hdcp_helper.h index 8aaf87bf27351..dd02b2e72a502 100644 --- a/include/drm/display/drm_hdcp_helper.h +++ b/include/drm/display/drm_hdcp_helper.h @@ -11,6 +11,7 @@ #include +struct drm_atomic_state; struct drm_device; struct drm_connector; @@ -18,5 +19,7 @@ int drm_hdcp_check_ksvs_revoked(struct drm_device *dev, u8 *ksvs, u32 ksv_count) 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); #endif