From patchwork Mon Sep 24 14:28:29 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Figa X-Patchwork-Id: 1498051 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 35481DF280 for ; Mon, 24 Sep 2012 14:31:44 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TG9f3-0005Xd-Qw; Mon, 24 Sep 2012 14:29:25 +0000 Received: from mailout2.samsung.com ([203.254.224.25]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TG9ea-0005S2-1w for linux-arm-kernel@lists.infradead.org; Mon, 24 Sep 2012 14:28:58 +0000 Received: from epcpsbgm2.samsung.com (epcpsbgm2 [203.254.230.27]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MAU004SPYVRKX10@mailout2.samsung.com> for linux-arm-kernel@lists.infradead.org; Mon, 24 Sep 2012 23:28:52 +0900 (KST) X-AuditID: cbfee61b-b7f2b6d000000f14-22-50606e243d02 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 1E.78.03860.42E60605; Mon, 24 Sep 2012 23:28:52 +0900 (KST) Received: from mcdsrvbld02.digital.local ([106.116.37.23]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MAU0018OYVOXC80@mmp1.samsung.com> for linux-arm-kernel@lists.infradead.org; Mon, 24 Sep 2012 23:28:52 +0900 (KST) From: Tomasz Figa To: linux-samsung-soc@vger.kernel.org Subject: [PATCH 2/6] ARM: EXYNOS: Add support for secure monitor calls Date: Mon, 24 Sep 2012 16:28:29 +0200 Message-id: <1348496913-25422-3-git-send-email-t.figa@samsung.com> X-Mailer: git-send-email 1.7.10 In-reply-to: <1348496913-25422-1-git-send-email-t.figa@samsung.com> References: <1348496913-25422-1-git-send-email-t.figa@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrIJMWRmVeSWpSXmKPExsVy+t9jAV2VvIQAg5bnIhabHl9jdWD02Lyk PoAxissmJTUnsyy1SN8ugStj1bdGpoJv4hWnp8s1MO4Q7mLk5JAQMJHYNb+dCcIWk7hwbz1b FyMXh5DAIkaJxT0/WCGczUwSl45MZQGpYhNQk/jc8IgNxBYRUJX43LaAHaSIWeAwo8S1lRdZ QRLCAm4SW5s6wMayABX1v1/MCGLzCjhJLH/TzAKxTl7i6f0+oEEcHJwCzhL7TgWDhIWAShov TWecwMi7gJFhFaNoakFyQXFSeq6RXnFibnFpXrpecn7uJkawx59J72Bc1WBxiFGAg1GJh3fD mfgAIdbEsuLK3EOMEhzMSiK8RxMTAoR4UxIrq1KL8uOLSnNSiw8xSnOwKInzCn8KDBASSE8s Sc1OTS1ILYLJMnFwSjUwut2JrHnrUWbhF8xfcCdc6EDdXT77IP/DKhHb9u0p+nq565VW2L4W BcczSix/205/YFV+zNnlMO3MlAl+dufSMzlfCXPfPHTUU0tmQpmp0IUnl5inxFibWirukWCx fBnd8njdRs+35qk+RYfyFIpldjtJxp1Zc0z7iBCzIgfXd5u1Kl/sEpOVWIozEg21mIuKEwGx GHcC9AEAAA== X-Spam-Note: CRM114 invocation failed X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [203.254.224.25 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.8 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: kgene.kim@samsung.com, linux@arm.linux.org.uk, arnd@arndb.de, t.figa@samsung.com, kyungmin.park@samsung.com, olof@lixom.net, linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Some boards use secure monitor calls to communicate with secure firmware. This patch adds exynos_smc function which uses smc assembly instruction to do secure monitor calls. Signed-off-by: Kyungmin Park Signed-off-by: Tomasz Figa --- arch/arm/mach-exynos/Makefile | 5 +++++ arch/arm/mach-exynos/exynos-smc.S | 22 ++++++++++++++++++++++ arch/arm/mach-exynos/smc.h | 31 +++++++++++++++++++++++++++++++ 3 files changed, 58 insertions(+) create mode 100644 arch/arm/mach-exynos/exynos-smc.S create mode 100644 arch/arm/mach-exynos/smc.h diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index 9b58024..5c1de47 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -30,6 +30,11 @@ obj-$(CONFIG_EXYNOS4_MCT) += mct.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o +obj-$(CONFIG_ARCH_EXYNOS) += exynos-smc.o + +plus_sec := $(call as-instr,.arch_extension sec,+sec) +AFLAGS_exynos-smc.o :=-Wa,-march=armv7-a$(plus_sec) + # machine support obj-$(CONFIG_MACH_SMDKC210) += mach-smdkv310.o diff --git a/arch/arm/mach-exynos/exynos-smc.S b/arch/arm/mach-exynos/exynos-smc.S new file mode 100644 index 0000000..2e27aa3 --- /dev/null +++ b/arch/arm/mach-exynos/exynos-smc.S @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2012 Samsung Electronics. + * + * Copied from omap-smc.S Copyright (C) 2010 Texas Instruments, Inc. + * + * This program is free software,you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include + +/* + * Function signature: void exynos_smc(u32 cmd, u32 arg1, u32 arg2, u32 arg3) + */ + +ENTRY(exynos_smc) + stmfd sp!, {r4-r11, lr} + dsb + smc #0 + ldmfd sp!, {r4-r11, pc} +ENDPROC(exynos_smc) diff --git a/arch/arm/mach-exynos/smc.h b/arch/arm/mach-exynos/smc.h new file mode 100644 index 0000000..e972390 --- /dev/null +++ b/arch/arm/mach-exynos/smc.h @@ -0,0 +1,31 @@ +/* + * Copyright (c) 2012 Samsung Electronics. + * + * EXYNOS - SMC Call + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_EXYNOS_SMC_H +#define __ASM_ARCH_EXYNOS_SMC_H + +#define SMC_CMD_INIT (-1) +#define SMC_CMD_INFO (-2) +/* For Power Management */ +#define SMC_CMD_SLEEP (-3) +#define SMC_CMD_CPU1BOOT (-4) +#define SMC_CMD_CPU0AFTR (-5) +/* For CP15 Access */ +#define SMC_CMD_C15RESUME (-11) +/* For L2 Cache Access */ +#define SMC_CMD_L2X0CTRL (-21) +#define SMC_CMD_L2X0SETUP1 (-22) +#define SMC_CMD_L2X0SETUP2 (-23) +#define SMC_CMD_L2X0INVALL (-24) +#define SMC_CMD_L2X0DEBUG (-25) + +extern void exynos_smc(u32 cmd, u32 arg1, u32 arg2, u32 arg3); + +#endif