From patchwork Mon Apr 13 19:44:21 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Tomsich X-Patchwork-Id: 6211581 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D0A7FBF4A6 for ; Mon, 13 Apr 2015 20:22:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E5BFF202DD for ; Mon, 13 Apr 2015 20:22:39 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 156BB202D1 for ; Mon, 13 Apr 2015 20:22:39 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YhkpO-0002VW-Lc; Mon, 13 Apr 2015 20:19:30 +0000 Received: from vegas.theobroma-systems.com ([144.76.126.164] helo=mail.theobroma-systems.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YhkmW-0000az-DI for linux-arm-kernel@lists.infradead.org; Mon, 13 Apr 2015 20:16:33 +0000 Received: from [86.59.122.178] (port=55147 helo=android.com) by mail.theobroma-systems.com with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1YhkIL-0001rr-5T; Mon, 13 Apr 2015 21:45:21 +0200 From: Philipp Tomsich To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 11/24] arm64:ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64 Date: Mon, 13 Apr 2015 21:44:21 +0200 Message-Id: <9abd0b5771a96752c5fae1195ed98618c6a24f4a.1428953303.git.philipp.tomsich@theobroma-systems.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150413_131632_669297_A29EBC85 X-CRM114-Status: GOOD ( 10.93 ) X-Spam-Score: -0.0 (/) Cc: Andreas Kraschitzer , Philipp Tomsich , Catalin Marinas , Andrew Pinski , Kumar Sankaran , Benedikt Huber , Christoph Muellner X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 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+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Andrew Pinski Signed-off-by: Philipp Tomsich Signed-off-by: Christoph Muellner --- arch/arm64/include/asm/compat.h | 32 ++++++++++++++++++++++++++++++-- arch/arm64/include/asm/thread_info.h | 1 + 2 files changed, 31 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index 3a2976d..f53c4e6 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -319,6 +319,26 @@ static inline int is_a32_compat_thread(struct thread_info *thread) } #endif +#ifdef CONFIG_ARM64_ILP32 +static inline int is_ilp32_compat_task(void) +{ + return test_thread_flag(TIF_32BIT_AARCH64); +} +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return test_ti_thread_flag(thread, TIF_32BIT_AARCH64); +} +#else +static inline int is_ilp32_compat_task(void) +{ + return 0; +} +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return 0; +} +#endif + #else /* !CONFIG_COMPAT */ static inline int is_compat_thread(struct thread_info *thread) @@ -330,17 +350,25 @@ static inline int is_a32_compat_task(void) { return 0; } +static inline int is_ilp32_compat_task(void) +{ + return 0; +} +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return 0; +} #endif /* CONFIG_COMPAT */ static inline int is_compat_task(void) { - return is_a32_compat_task(); + return is_a32_compat_task() || is_ilp32_compat_task(); } static inline int is_compat_thread(struct thread_info *thread) { - return is_a32_compat_thread(thread); + return is_a32_compat_thread(thread) || is_ilp32_compat_thread(thread); } #endif /* __KERNEL__ */ #endif /* __ASM_COMPAT_H */ diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index 75f8d56..d41586c 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -115,6 +115,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_SINGLESTEP 21 #define TIF_32BIT 22 /* AARCH32 process */ #define TIF_SWITCH_MM 23 /* deferred switch_mm */ +#define TIF_32BIT_AARCH64 24 /* 32 bit process on AArch64(ILP32) */ #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)