From patchwork Sun Sep 22 17:22:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antheas Kapenekakis X-Patchwork-Id: 830423 Received: from linux1587.grserver.gr (linux1587.grserver.gr [185.138.42.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06A7E2B9A1; Sun, 22 Sep 2024 17:24:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.138.42.100 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727025875; cv=none; b=AvWuoV5ec0V8FIjUgZvkbJi/Hs0FCqGrwoy5KXqx8Ooz7f4i0L8wHS5r+0jLA4Ui7xpl9gpiykFVoSWEMOhHLHBVy5FdPLqBnDRs4U42qDPaeI3/oiUJmPQNIijHzIjr+YAgj4/gY6yXYdgsMlqY8IAMzfCBZvs6bajZ4sbTZdM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727025875; c=relaxed/simple; bh=hdYiVrfxrtBaACQtrGawG/G1F0oam/9gpUa3/Msk+H0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=U16itiI5ygSpZzy9ir0UjgyFCNteS8MB8HB2EQifYIaBVe9jbCWYb2mbnH+P9ozGFRHLNMqFiz4LZjc87GhhxTMyfixcjAG6netXLB8S7ln5cLwQ1WOj/A+gV2QE9WwI8j+q5+LRuZnaoLmMaWsLCqdjXXqXtF3H3j1YHmUi+W0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=antheas.dev; spf=pass smtp.mailfrom=antheas.dev; dkim=pass (1024-bit key) header.d=antheas.dev header.i=@antheas.dev header.b=zh2atIWe; arc=none smtp.client-ip=185.138.42.100 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=antheas.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=antheas.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=antheas.dev header.i=@antheas.dev header.b="zh2atIWe" Received: from localhost.localdomain (unknown [IPv6:2a05:f6c2:511b:0:cbc0:999f:73ad:33bd]) by linux1587.grserver.gr (Postfix) with ESMTPSA id E77A92E09702; Sun, 22 Sep 2024 20:24:29 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=antheas.dev; s=default; t=1727025870; bh=WEaCrXuILAhyNJftzE1NUauNPw6HjX292SCxgFJUUak=; h=From:To:Subject; b=zh2atIWeZA6zALTnAcOlW/zp2ddwYpX6n4TwWGvH9Z9mQHzRtahOJmTaLy+fut9IX j72TAqb/2PNF9FiqHGEZMFNQTvGNeWMh2L/paFr5m3hZctk0LjLWTeMNdOs1kN/wRz p1LHXDCCZxD2pUuKbQ1FsZ4axLeTQzDTn2CG6LgU= Authentication-Results: linux1587.grserver.gr; spf=pass (sender IP is 2a05:f6c2:511b:0:cbc0:999f:73ad:33bd) smtp.mailfrom=lkml@antheas.dev smtp.helo=localhost.localdomain Received-SPF: pass (linux1587.grserver.gr: connection is authenticated) From: Antheas Kapenekakis To: linux-pm@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org, Mario Limonciello , luke@ljones.dev, me@kylegospodneti.ch, Denis Benato , Antheas Kapenekakis Subject: [PATCH v2 4/5] acpi/x86: s2idle: call Display On/Off as part of callbacks and rename Date: Sun, 22 Sep 2024 19:22:57 +0200 Message-ID: <20240922172258.48435-5-lkml@antheas.dev> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240922172258.48435-1-lkml@antheas.dev> References: <20240922172258.48435-1-lkml@antheas.dev> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-PPP-Message-ID: <172702587079.19655.3616447128571825577@linux1587.grserver.gr> X-PPP-Vhost: antheas.dev X-Virus-Scanned: clamav-milter 0.103.11 at linux1587.grserver.gr X-Virus-Status: Clean Move the Display On/Off notifications into dedicated callbacks that gate the ACPI mutex, so they can be called outside of the suspend path. This fixes issues on certain devices that expect kernel drivers to be fully active during the calls, and allows for the flexibility of calling them as part of a more elaborate userspace suspend sequence (such as with "Screen Off" in Windows Modern Standby). In addition, rename the notifications from "screen_" to "display_", as there is no documentation referring to them as screen, either by Intel or Microsoft. Co-developed-by: Mario Limonciello Signed-off-by: Antheas Kapenekakis --- drivers/acpi/x86/s2idle.c | 89 +++++++++++++++++++++++++++------------ 1 file changed, 62 insertions(+), 27 deletions(-) diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c index dd0b40b9bbe8..a17e28b91326 100644 --- a/drivers/acpi/x86/s2idle.c +++ b/drivers/acpi/x86/s2idle.c @@ -39,8 +39,8 @@ static const struct acpi_device_id lps0_device_ids[] = { #define ACPI_LPS0_DSM_UUID "c4eb40a0-6cd2-11e2-bcfd-0800200c9a66" #define ACPI_LPS0_GET_DEVICE_CONSTRAINTS 1 -#define ACPI_LPS0_SCREEN_OFF 3 -#define ACPI_LPS0_SCREEN_ON 4 +#define ACPI_LPS0_DISPLAY_OFF 3 +#define ACPI_LPS0_DISPLAY_ON 4 #define ACPI_LPS0_ENTRY 5 #define ACPI_LPS0_EXIT 6 #define ACPI_LPS0_MS_ENTRY 7 @@ -50,8 +50,8 @@ static const struct acpi_device_id lps0_device_ids[] = { #define ACPI_LPS0_DSM_UUID_AMD "e3f32452-febc-43ce-9039-932122d37721" #define ACPI_LPS0_ENTRY_AMD 2 #define ACPI_LPS0_EXIT_AMD 3 -#define ACPI_LPS0_SCREEN_OFF_AMD 4 -#define ACPI_LPS0_SCREEN_ON_AMD 5 +#define ACPI_LPS0_DISPLAY_OFF_AMD 4 +#define ACPI_LPS0_DISPLAY_ON_AMD 5 static acpi_handle lps0_device_handle; static guid_t lps0_dsm_guid; @@ -60,6 +60,7 @@ static int lps0_dsm_func_mask; static guid_t lps0_dsm_guid_microsoft; static int lps0_dsm_func_mask_microsoft; static int lps0_dsm_state; +static bool lsp0_dsm_in_display_off; /* Device constraint entry structure */ struct lpi_device_info { @@ -361,9 +362,9 @@ static const char *acpi_sleep_dsm_state_to_str(unsigned int state) { if (lps0_dsm_func_mask_microsoft || !acpi_s2idle_vendor_amd()) { switch (state) { - case ACPI_LPS0_SCREEN_OFF: + case ACPI_LPS0_DISPLAY_OFF: return "screen off"; - case ACPI_LPS0_SCREEN_ON: + case ACPI_LPS0_DISPLAY_ON: return "screen on"; case ACPI_LPS0_ENTRY: return "lps0 entry"; @@ -376,9 +377,9 @@ static const char *acpi_sleep_dsm_state_to_str(unsigned int state) } } else { switch (state) { - case ACPI_LPS0_SCREEN_ON_AMD: + case ACPI_LPS0_DISPLAY_ON_AMD: return "screen on"; - case ACPI_LPS0_SCREEN_OFF_AMD: + case ACPI_LPS0_DISPLAY_OFF_AMD: return "screen off"; case ACPI_LPS0_ENTRY_AMD: return "lps0 entry"; @@ -539,27 +540,69 @@ static struct acpi_scan_handler lps0_handler = { .attach = lps0_device_attach, }; -int acpi_s2idle_prepare_late(void) +static int acpi_s2idle_display_off(void) { - struct acpi_s2idle_dev_ops *handler; - if (!lps0_device_handle || sleep_no_lps0) return 0; - if (pm_debug_messages_on) - lpi_check_constraints(); + if (unlikely(WARN_ON(lsp0_dsm_in_display_off))) + return -EINVAL; + + lsp0_dsm_in_display_off = true; + acpi_scan_lock_acquire(); - /* Screen off */ + /* Display off */ if (lps0_dsm_func_mask > 0) acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ? - ACPI_LPS0_SCREEN_OFF_AMD : - ACPI_LPS0_SCREEN_OFF, + ACPI_LPS0_DISPLAY_OFF_AMD : + ACPI_LPS0_DISPLAY_OFF, lps0_dsm_func_mask, lps0_dsm_guid); if (lps0_dsm_func_mask_microsoft > 0) - acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF, + acpi_sleep_run_lps0_dsm(ACPI_LPS0_DISPLAY_OFF, lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft); + acpi_scan_lock_release(); + + return 0; +} + +static int acpi_s2idle_display_on(void) +{ + if (!lps0_device_handle || sleep_no_lps0) + return 0; + + if (unlikely(WARN_ON(!lsp0_dsm_in_display_off))) + return -EINVAL; + + lsp0_dsm_in_display_off = false; + acpi_scan_lock_acquire(); + + /* Display on */ + if (lps0_dsm_func_mask_microsoft > 0) + acpi_sleep_run_lps0_dsm(ACPI_LPS0_DISPLAY_ON, + lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft); + if (lps0_dsm_func_mask > 0) + acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ? + ACPI_LPS0_DISPLAY_ON_AMD : + ACPI_LPS0_DISPLAY_ON, + lps0_dsm_func_mask, lps0_dsm_guid); + + acpi_scan_lock_release(); + + return 0; +} + +int acpi_s2idle_prepare_late(void) +{ + struct acpi_s2idle_dev_ops *handler; + + if (!lps0_device_handle || sleep_no_lps0) + return 0; + + if (pm_debug_messages_on) + lpi_check_constraints(); + /* LPS0 entry */ if (lps0_dsm_func_mask > 0 && acpi_s2idle_vendor_amd()) acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY_AMD, @@ -623,19 +666,10 @@ void acpi_s2idle_restore_early(void) acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_EXIT, lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft); } - - /* Screen on */ - if (lps0_dsm_func_mask_microsoft > 0) - acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON, - lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft); - if (lps0_dsm_func_mask > 0) - acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ? - ACPI_LPS0_SCREEN_ON_AMD : - ACPI_LPS0_SCREEN_ON, - lps0_dsm_func_mask, lps0_dsm_guid); } static const struct platform_s2idle_ops acpi_s2idle_ops_lps0 = { + .display_off = acpi_s2idle_display_off, .begin = acpi_s2idle_begin, .prepare = acpi_s2idle_prepare, .prepare_late = acpi_s2idle_prepare_late, @@ -644,6 +678,7 @@ static const struct platform_s2idle_ops acpi_s2idle_ops_lps0 = { .restore_early = acpi_s2idle_restore_early, .restore = acpi_s2idle_restore, .end = acpi_s2idle_end, + .display_on = acpi_s2idle_display_on, }; void __init acpi_s2idle_setup(void)