From patchwork Mon Mar 31 10:46:03 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 27407 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-qa0-f70.google.com (mail-qa0-f70.google.com [209.85.216.70]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id 50BF520341 for ; Mon, 31 Mar 2014 10:49:35 +0000 (UTC) Received: by mail-qa0-f70.google.com with SMTP id hw13sf16896596qab.5 for ; Mon, 31 Mar 2014 03:49:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:delivered-to:from:to:subject:date:message-id :in-reply-to:references:cc:precedence:list-id:list-unsubscribe :list-archive:list-post:list-help:list-subscribe:mime-version:sender :errors-to:x-original-sender:x-original-authentication-results :mailing-list:content-type:content-transfer-encoding; bh=nIXulE411XlLmQOqD4dgDWq4yfKRit9gjfgs73+YXGE=; b=HBXESRau5pvQx6yKkxJmeA6r5Z1XSHXodzH+3GRc0r2GT0dv6/BqKqH1DDvOgO3ZyB JBypoHK6tMSP3uPP+cCYmQPDK+WtJEycS77tFKhztSE1qDMcASXN2mZbs97CraetK/or EoqRbXSh/d/HF3ecHj0igEgKH0/89yUEVdIUejiha2klf+p8U3CfHyNcK2NoenYP43TZ 0ppq21cyZy4vsCb4gQILqu0xNOj7i1mqUgq0cZ+iEFPZNCT1SBTVV4Axy0at2v9zo0f0 GvzXS/xS/d3AjjiP/r1Jj5PCQHD6UbfEmjQPcCYdDKOgXFFbSK5pdp+HGunJ8eLfrAZx DXJg== X-Gm-Message-State: ALoCoQnPfZBzMuOhP6sXcqb20oB0LScq88fX8bEEnZjlqHAUJ26hUte72LDbH3p4x5rYi2vU4O1c X-Received: by 10.236.175.66 with SMTP id y42mr9066712yhl.38.1396262974945; Mon, 31 Mar 2014 03:49:34 -0700 (PDT) X-BeenThere: patchwork-forward@linaro.org Received: by 10.140.92.163 with SMTP id b32ls2077162qge.22.gmail; Mon, 31 Mar 2014 03:49:34 -0700 (PDT) X-Received: by 10.58.154.10 with SMTP id vk10mr2678416veb.18.1396262974813; Mon, 31 Mar 2014 03:49:34 -0700 (PDT) Received: from mail-ve0-f169.google.com (mail-ve0-f169.google.com [209.85.128.169]) by mx.google.com with ESMTPS id tx7si2797478vcb.116.2014.03.31.03.49.34 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 31 Mar 2014 03:49:34 -0700 (PDT) Received-SPF: neutral (google.com: 209.85.128.169 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) client-ip=209.85.128.169; Received: by mail-ve0-f169.google.com with SMTP id pa12so8066012veb.14 for ; Mon, 31 Mar 2014 03:49:34 -0700 (PDT) X-Received: by 10.58.187.78 with SMTP id fq14mr22226284vec.9.1396262974710; Mon, 31 Mar 2014 03:49:34 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patch@linaro.org Received: by 10.220.12.8 with SMTP id v8csp131063vcv; Mon, 31 Mar 2014 03:49:34 -0700 (PDT) X-Received: by 10.180.101.40 with SMTP id fd8mr11311519wib.1.1396262973946; Mon, 31 Mar 2014 03:49:33 -0700 (PDT) Received: from casper.infradead.org (casper.infradead.org. [2001:770:15f::2]) by mx.google.com with ESMTPS id i2si3205247wjn.131.2014.03.31.03.49.33 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 31 Mar 2014 03:49:33 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:770:15f::2 as permitted sender) client-ip=2001:770:15f::2; Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WUZkm-0005lh-Ge; Mon, 31 Mar 2014 10:47:44 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WUZkb-0004fx-UC; Mon, 31 Mar 2014 10:47:33 +0000 Received: from mail-pa0-f54.google.com ([209.85.220.54]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WUZkH-0004b7-G8 for linux-arm-kernel@lists.infradead.org; Mon, 31 Mar 2014 10:47:14 +0000 Received: by mail-pa0-f54.google.com with SMTP id lf10so7989011pab.41 for ; Mon, 31 Mar 2014 03:46:49 -0700 (PDT) X-Received: by 10.66.193.161 with SMTP id hp1mr24456915pac.20.1396262809308; Mon, 31 Mar 2014 03:46:49 -0700 (PDT) Received: from pnqlab006.amcc.com ([182.73.239.130]) by mx.google.com with ESMTPSA id oa3sm42582874pbb.15.2014.03.31.03.46.45 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 31 Mar 2014 03:46:48 -0700 (PDT) From: Anup Patel To: kvmarm@lists.cs.columbia.edu Subject: [PATCH v6 02/12] ARM/ARM64: KVM: Add common header for PSCI related defines Date: Mon, 31 Mar 2014 16:16:03 +0530 Message-Id: <1396262773-7723-3-git-send-email-anup.patel@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1396262773-7723-1-git-send-email-anup.patel@linaro.org> References: <1396262773-7723-1-git-send-email-anup.patel@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140331_064713_649663_13904567 X-CRM114-Status: GOOD ( 10.40 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.220.54 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Mark Rutland , Rob Herring , linaro-kernel@lists.linaro.org, Anup Patel , Marc Zyngier , patches@apm.com, linux-arm-kernel@lists.infradead.org, Christoffer Dall , Pranavkumar Sawargaonkar X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: , List-Help: , List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: anup.patel@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.128.169 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 We need a common place to share PSCI related defines among ARM kernel, ARM64 kernel, KVM ARM/ARM64 PSCI emulation, and user space. We introduce uapi/linux/psci.h for this purpose. This newly added header will be first used by KVM ARM/ARM64 in-kernel PSCI emulation and user space (i.e. QEMU or KVMTOOL). Signed-off-by: Anup Patel Signed-off-by: Pranavkumar Sawargaonkar --- include/uapi/linux/Kbuild | 1 + include/uapi/linux/psci.h | 55 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 include/uapi/linux/psci.h diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index 6929571..24e9033 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -317,6 +317,7 @@ header-y += ppp-ioctl.h header-y += ppp_defs.h header-y += pps.h header-y += prctl.h +header-y += psci.h header-y += ptp_clock.h header-y += ptrace.h header-y += qnx4_fs.h diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h new file mode 100644 index 0000000..41f727e --- /dev/null +++ b/include/uapi/linux/psci.h @@ -0,0 +1,55 @@ +/* + * ARM Power State and Coordination Interface (PSCI) header + * + * This header holds common PSCI defines and macros shared by: + * ARM kernel, ARM64 kernel, KVM ARM/ARM64 and user space. + * + * Copyright (C) 2014 Anup Patel + */ + +#ifndef _UAPI_LINUX_PSCI_H +#define _UAPI_LINUX_PSCI_H + +/* PSCI v0.1 interface */ +#define PSCI_FN(base, n) ((base) + (n)) + +#define PSCI_FN_CPU_SUSPEND(base) PSCI_FN(base, 0) +#define PSCI_FN_CPU_OFF(base) PSCI_FN(base, 1) +#define PSCI_FN_CPU_ON(base) PSCI_FN(base, 2) +#define PSCI_FN_MIGRATE(base) PSCI_FN(base, 3) + +/* PSCI v0.2 interface */ +#define PSCI_0_2_FN_BASE 0x84000000 +#define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n)) +#define PSCI_0_2_FN64_BASE 0xC4000000 +#define PSCI_0_2_FN64(n) (PSCI_0_2_FN64_BASE + (n)) + +#define PSCI_0_2_FN_PSCI_VERSION PSCI_0_2_FN(0) +#define PSCI_0_2_FN_CPU_SUSPEND PSCI_0_2_FN(1) +#define PSCI_0_2_FN_CPU_OFF PSCI_0_2_FN(2) +#define PSCI_0_2_FN_CPU_ON PSCI_0_2_FN(3) +#define PSCI_0_2_FN_AFFINITY_INFO PSCI_0_2_FN(4) +#define PSCI_0_2_FN_MIGRATE PSCI_0_2_FN(5) +#define PSCI_0_2_FN_MIGRATE_INFO_TYPE PSCI_0_2_FN(6) +#define PSCI_0_2_FN_MIGRATE_INFO_UP_CPU PSCI_0_2_FN(7) +#define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8) +#define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9) + +#define PSCI_0_2_FN64_CPU_SUSPEND PSCI_0_2_FN64(1) +#define PSCI_0_2_FN64_CPU_ON PSCI_0_2_FN64(3) +#define PSCI_0_2_FN64_AFFINITY_INFO PSCI_0_2_FN64(4) +#define PSCI_0_2_FN64_MIGRATE PSCI_0_2_FN64(5) +#define PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU PSCI_0_2_FN64(7) + +/* PSCI return values */ +#define PSCI_RET_SUCCESS 0 +#define PSCI_RET_NOT_SUPPORTED ((unsigned long)-1) +#define PSCI_RET_INVALID_PARAMS ((unsigned long)-2) +#define PSCI_RET_DENIED ((unsigned long)-3) +#define PSCI_RET_ALREADY_ON ((unsigned long)-4) +#define PSCI_RET_ON_PENDING ((unsigned long)-5) +#define PSCI_RET_INTERNAL_FAILURE ((unsigned long)-6) +#define PSCI_RET_NOT_PRESENT ((unsigned long)-7) +#define PSCI_RET_DISABLED ((unsigned long)-8) + +#endif /* _UAPI_LINUX_PSCI_H */