From patchwork Tue Mar 19 12:59:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Woodhouse X-Patchwork-Id: 13596670 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 616E2C54E5D for ; Tue, 19 Mar 2024 13:10:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ftct3dDoFHXj1mx3dxef/i8ag6JIp7GOXdWrWAqgu6c=; b=G80sQnv8VwBCJt h9RwWyy41z0qnx4Ubk3Hx/yBmEtFmzppn2zVMK0rmoLI3YKpkoz9HWRO8U3FCTu+NrtzdOgMBQIn7 Rb22C/Of9txcFJHoCcP3v8B5So41WZtzwq02KTwDl4MpPenyBiA9ReGK1QqDOgwtboVsxoQvXsVEc 5/9hnSeMtamzM053EYmSact2KajYZGZRaRiiI4iEO3ifCB+l8o4QzzL7ZjyLrmALKYNFvB8A+NQyx KLms7d8FM+d9oVTqWHSHeaykmqoMw+T76m0S4r8Il4kXQmBqwOro2zy/Ug4ZiUMk6keMdO0YOTpS3 7YcTRE3l1qNyr0cIH4ZQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rmZEc-0000000Ck1Z-2DsJ; Tue, 19 Mar 2024 13:10:30 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rmZEM-0000000CjoN-34Ny for linux-arm-kernel@bombadil.infradead.org; Tue, 19 Mar 2024 13:10:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description; bh=gpbsniFgtOHZgJp8y3v9VSnosB7+jAV6rr5l+o89n6M=; b=DyPVefykUib1KIPMoegj8g39X/ /nDPObhLkeoMI7u4nHxah1kVx8au4kx5ZEyDFD+ZDuheFFVB46BP3rnww/3MwZrYKl8URuB1F5nEy oW7VOzLSLhSpWwYJZeV3zL7VwGBpllJTgnKXWpn/77f5YnoSSL7QmwAqKjyFxk1xqPcxRQHzvgGOI 5AGqNRj81DbPSZxtuV+JgKBEiPIOZCJ/i2O746DtfsY2u8pJ9peBZwS9+YUxyXwOLoZcfxB6zMrvS Ob9EIW/z0Lzu9cBAC1TN5VDAltEziSO82DRyUuaqebv/O6DmXBgihg5EdDmrJeNMO2q5USR5VfmmS MHbW4Vtw==; Received: from [2001:8b0:10b:1::ebe] (helo=i7.infradead.org) by desiato.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1rmZEA-0000000DDlw-1jEz; Tue, 19 Mar 2024 13:10:02 +0000 Received: from dwoodhou by i7.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rmZE8-00000004PMq-3p6r; Tue, 19 Mar 2024 13:10:00 +0000 From: David Woodhouse To: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org Cc: Paolo Bonzini , Jonathan Corbet , Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Mark Rutland , Lorenzo Pieralisi , "Rafael J. Wysocki" , Len Brown , Pavel Machek , David Woodhouse , Mostafa Saleh , Jean-Philippe Brucker , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, linux-pm@vger.kernel.org Subject: [RFC PATCH v3 1/5] firmware/psci: Add definitions for PSCI v1.3 specification (ALPHA) Date: Tue, 19 Mar 2024 12:59:02 +0000 Message-ID: <20240319130957.1050637-2-dwmw2@infradead.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240319130957.1050637-1-dwmw2@infradead.org> References: <20240319130957.1050637-1-dwmw2@infradead.org> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by desiato.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: David Woodhouse The v1.3 PSCI spec (https://developer.arm.com/documentation/den0022) adds SYSTEM_OFF2, CLEAN_INV_MEMREGION and CLEAN_INV_MEMREGION_ATTRIBUTES functions. Add definitions for them and their parameters, along with the new TIMEOUT, RATE_LIMITED and BUSY error values. Signed-off-by: David Woodhouse --- include/uapi/linux/psci.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h index 42a40ad3fb62..082ed689fdaf 100644 --- a/include/uapi/linux/psci.h +++ b/include/uapi/linux/psci.h @@ -59,6 +59,8 @@ #define PSCI_1_1_FN_SYSTEM_RESET2 PSCI_0_2_FN(18) #define PSCI_1_1_FN_MEM_PROTECT PSCI_0_2_FN(19) #define PSCI_1_1_FN_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN(20) +#define PSCI_1_3_FN_SYSTEM_OFF2 PSCI_0_2_FN(21) +#define PSCI_1_3_FN_CLEAN_INV_MEMREGION_ATTRIBUTES PSCI_0_2_FN(23) #define PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND PSCI_0_2_FN64(12) #define PSCI_1_0_FN64_NODE_HW_STATE PSCI_0_2_FN64(13) @@ -68,6 +70,8 @@ #define PSCI_1_1_FN64_SYSTEM_RESET2 PSCI_0_2_FN64(18) #define PSCI_1_1_FN64_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN64(20) +#define PSCI_1_3_FN64_SYSTEM_OFF2 PSCI_0_2_FN64(21) +#define PSCI_1_3_FN64_CLEAN_INV_MEMREGION PSCI_0_2_FN64(22) /* PSCI v0.2 power state encoding for CPU_SUSPEND function */ #define PSCI_0_2_POWER_STATE_ID_MASK 0xffff @@ -100,6 +104,19 @@ #define PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET 0 #define PSCI_1_1_RESET_TYPE_VENDOR_START 0x80000000U +/* PSCI v1.3 hibernate type for SYSTEM_OFF2 */ +#define PSCI_1_3_HIBERNATE_TYPE_OFF 0 + +/* PSCI v1.3 flags for CLEAN_INV_MEMREGION */ +#define PSCI_1_3_CLEAN_INV_MEMREGION_FLAG_DRY_RUN BIT(0) + +/* PSCI v1.3 attributes for CLEAN_INV_MEMREGION_ATTRIBUTES */ +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_OP_TYPE 0 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_CPU_RDVZ 1 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_LATENCY 2 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_RATE_LIMIT 3 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_TIMEOUT 4 + /* PSCI version decoding (independent of PSCI version) */ #define PSCI_VERSION_MAJOR_SHIFT 16 #define PSCI_VERSION_MINOR_MASK \ @@ -133,5 +150,8 @@ #define PSCI_RET_NOT_PRESENT -7 #define PSCI_RET_DISABLED -8 #define PSCI_RET_INVALID_ADDRESS -9 +#define PSCI_RET_TIMEOUT -10 +#define PSCI_RET_RATE_LIMITED -11 +#define PSCI_RET_BUSY -12 #endif /* _UAPI_LINUX_PSCI_H */