From patchwork Mon Sep 6 07:35:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 12476513 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=-11.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 D6DADC4332F for ; Mon, 6 Sep 2021 07:35:35 +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 9D5F8606A5 for ; Mon, 6 Sep 2021 07:35:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9D5F8606A5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com 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 8F8518995F; Mon, 6 Sep 2021 07:35:34 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7E5AE8995F for ; Mon, 6 Sep 2021 07:35:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1630913732; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=U5F+g65gvtlKtqKvVL0elOUMCwcI/xX6RWsFAr3WOYA=; b=e9Bx7YlJ2sBSK1IpL7L2+p49G8McK5ZuLooHBZNuVOHatRupIoMSLXxngLQ7SBequiI2g9 Y3OYZXIATaGyQAZXJ0jBWwRVgK8ua0U0bspr4S7lYlgW9/6rT0Q31bWQ58OflI/uLmy7Dv kg14Iv9WZD4TjX4AZbvYyB7Z5OK6cEE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-246-QYrddwH_MhSJ3uEDX4y7Uw-1; Mon, 06 Sep 2021 03:35:29 -0400 X-MC-Unique: QYrddwH_MhSJ3uEDX4y7Uw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6D80E802929; Mon, 6 Sep 2021 07:35:26 +0000 (UTC) Received: from x1.localdomain.com (unknown [10.39.194.133]) by smtp.corp.redhat.com (Postfix) with ESMTP id AB38877701; Mon, 6 Sep 2021 07:35:20 +0000 (UTC) From: Hans de Goede To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rajat Jain , Jani Nikula , Lyude , Joonas Lahtinen , Rodrigo Vivi , Mark Gross , Andy Shevchenko Cc: Hans de Goede , Daniel Vetter , David Airlie , Pekka Paalanen , Mario Limonciello , Mark Pearson , Sebastien Bacher , Marco Trevisan , Emil Velikov , intel-gfx , dri-devel@lists.freedesktop.org, platform-driver-x86@vger.kernel.org Subject: [PATCH 0/9] drm: Add privacy-screen class and connector properties Date: Mon, 6 Sep 2021 09:35:10 +0200 Message-Id: <20210906073519.4615-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi all, Here is the privacy-screen related code which I last posted in April 2021 To the best of my knowledge there is consensus about / everyone is in agreement with the new userspace API (2 connector properties) this patch-set add (patch 1 of the series). This is unchanged (except for a rebase on drm-tip), what has changed is that the first userspace consumer of the new properties is now fully ready for merging (it is just waiting for the kernel bits to land first): - https://gitlab.gnome.org/GNOME/gsettings-desktop-schemas/-/merge_requests/49 - https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1952 - https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/1032 Having a userspace-consumer of the API fully ready for merging, clears the last blocker for this series. It has already has been reviewed before by Emil Velikov, but it could really do with another review. The new API works as designed and add the following features to GNOME: 1. Showing an OSD notification when the privacy-screen is toggled on/off through hotkeys handled by the embedded-controller 2. Allowing control of the privacy-screen from the GNOME control-panel, including the on/off slider shown there updating to match the hw-setting when the setting is changed with the control-panel open. 3. Restoring the last user-setting at login This series consists of a number of different parts: 1. A new version of Rajat's privacy-screen connector properties patch, this adds new userspace API in the form of new properties 2. Since on most devices the privacy screen is actually controlled by some vendor specific ACPI/WMI interface which has a driver under drivers/platform/x86, we need some "glue" code to make this functionality available to KMS drivers. Patches 2-4 add a new privacy-screen class for this, which allows non KMS drivers (and possibly KMS drivers too) to register a privacy-screen device and also adds an interface for KMS drivers to get access to the privacy-screen associated with a specific connector. This is modelled similar to how we deal with e.g. PWMs and GPIOs in the kernel, including separate includes for consumers and providers(drivers). 3. Some drm_connector helper functions to keep the actual changes needed for this in individual KMS drivers as small as possible (patch 5). 4. Make the thinkpad_acpi code register a privacy-screen device on ThinkPads with a privacy-screen (patches 6-8) 5. Make the i915 driver export the privacy-screen functionality through the connector properties on the eDP connector. I believe that it would be best to merge the entire series, including the thinkpad_acpi changes through drm-misc in one go. As the pdx86 subsys maintainer I hereby give my ack for merging the thinkpad_acpi changes through drm-misc. There is one small caveat with this series, which it is good to be aware of. The i915 driver will now return -EPROBE_DEFER on Thinkpads with an eprivacy screen, until the thinkpad_acpi driver is loaded. This means that initrd generation tools will need to be updated to include thinkpad_acpi when the i915 driver is added to the initrd. Without this the loading of the i915 driver will be delayed to after the switch to real rootfs. Regards, Hans Hans de Goede (8): drm: Add privacy-screen class (v3) drm/privacy-screen: Add X86 specific arch init code drm/privacy-screen: Add notifier support drm/connector: Add a drm_connector privacy-screen helper functions platform/x86: thinkpad_acpi: Add hotkey_notify_extended_hotkey() helper platform/x86: thinkpad_acpi: Get privacy-screen / lcdshadow ACPI handles only once platform/x86: thinkpad_acpi: Register a privacy-screen device drm/i915: Add privacy-screen support Rajat Jain (1): drm/connector: Add support for privacy-screen properties (v4) Documentation/gpu/drm-kms-helpers.rst | 15 + Documentation/gpu/drm-kms.rst | 2 + MAINTAINERS | 8 + drivers/gpu/drm/Kconfig | 4 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/drm_atomic_uapi.c | 4 + drivers/gpu/drm/drm_connector.c | 214 +++++++++ drivers/gpu/drm/drm_drv.c | 4 + drivers/gpu/drm/drm_privacy_screen.c | 468 +++++++++++++++++++ drivers/gpu/drm/drm_privacy_screen_x86.c | 86 ++++ drivers/gpu/drm/i915/display/intel_display.c | 5 + drivers/gpu/drm/i915/display/intel_dp.c | 10 + drivers/gpu/drm/i915/i915_pci.c | 12 + drivers/platform/x86/Kconfig | 2 + drivers/platform/x86/thinkpad_acpi.c | 131 ++++-- include/drm/drm_connector.h | 56 +++ include/drm/drm_privacy_screen_consumer.h | 65 +++ include/drm/drm_privacy_screen_driver.h | 84 ++++ include/drm/drm_privacy_screen_machine.h | 46 ++ 19 files changed, 1175 insertions(+), 42 deletions(-) create mode 100644 drivers/gpu/drm/drm_privacy_screen.c create mode 100644 drivers/gpu/drm/drm_privacy_screen_x86.c create mode 100644 include/drm/drm_privacy_screen_consumer.h create mode 100644 include/drm/drm_privacy_screen_driver.h create mode 100644 include/drm/drm_privacy_screen_machine.h Reviewed-by: Lyude Paul