Message ID | 20240220171457.703-2-kprateek.nayak@amd.com |
---|---|
State | New |
Headers | show
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Tue, 20 Feb 2024 17:16:17 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS1PEPF00017095.mail.protection.outlook.com (10.167.17.138) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7292.25 via Frontend Transport; Tue, 20 Feb 2024 17:16:17 +0000 Received: from BLR5CG134614W.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 20 Feb 2024 11:15:57 -0600 From: K Prateek Nayak <kprateek.nayak@amd.com> To: <linux-kernel@vger.kernel.org> CC: "Gautham R. Shenoy" <gautham.shenoy@amd.com>, Richard Henderson <richard.henderson@linaro.org>, Ivan Kokshaysky <ink@jurassic.park.msu.ru>, Matt Turner <mattst88@gmail.com>, Russell King <linux@armlinux.org.uk>, "Guo Ren" <guoren@kernel.org>, Michal Simek <monstr@monstr.eu>, Dinh Nguyen <dinguyen@kernel.org>, Jonas Bonn <jonas@southpole.se>, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>, Stafford Horne <shorne@gmail.com>, "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>, Helge Deller <deller@gmx.de>, Michael Ellerman <mpe@ellerman.id.au>, Nicholas Piggin <npiggin@gmail.com>, Christophe Leroy <christophe.leroy@csgroup.eu>, "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>, "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Rich Felker <dalias@libc.org>, John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>, "David S. Miller" <davem@davemloft.net>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Dave Hansen <dave.hansen@linux.intel.com>, "H. Peter Anvin" <hpa@zytor.com>, "Rafael J. Wysocki" <rafael@kernel.org>, Daniel Lezcano <daniel.lezcano@linaro.org>, Peter Zijlstra <peterz@infradead.org>, Juri Lelli <juri.lelli@redhat.com>, Vincent Guittot <vincent.guittot@linaro.org>, Dietmar Eggemann <dietmar.eggemann@arm.com>, Steven Rostedt <rostedt@goodmis.org>, Ben Segall <bsegall@google.com>, "Mel Gorman" <mgorman@suse.de>, Daniel Bristot de Oliveira <bristot@redhat.com>, Valentin Schneider <vschneid@redhat.com>, Al Viro <viro@zeniv.linux.org.uk>, Linus Walleij <linus.walleij@linaro.org>, Ard Biesheuvel <ardb@kernel.org>, Andrew Donnellan <ajd@linux.ibm.com>, Nicholas Miehlbradt <nicholas@linux.ibm.com>, Andrew Morton <akpm@linux-foundation.org>, "Arnd Bergmann" <arnd@arndb.de>, Josh Poimboeuf <jpoimboe@kernel.org>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, Rick Edgecombe <rick.p.edgecombe@intel.com>, Tony Battersby <tonyb@cybernetics.com>, "Brian Gerst" <brgerst@gmail.com>, Tim Chen <tim.c.chen@linux.intel.com>, "David Vernet" <void@manifault.com>, <x86@kernel.org>, <linux-alpha@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-csky@vger.kernel.org>, <linux-openrisc@vger.kernel.org>, <linux-parisc@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>, <linux-sh@vger.kernel.org>, <sparclinux@vger.kernel.org>, <linux-pm@vger.kernel.org>, K Prateek Nayak <kprateek.nayak@amd.com> Subject: [RFC PATCH 01/14] thread_info: Add helpers to test and clear TIF_NOTIFY_IPI Date: Tue, 20 Feb 2024 22:44:44 +0530 Message-ID: <20240220171457.703-2-kprateek.nayak@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240220171457.703-1-kprateek.nayak@amd.com> References: <20240220171457.703-1-kprateek.nayak@amd.com> Precedence: bulk X-Mailing-List: sparclinux@vger.kernel.org List-Id: <sparclinux.vger.kernel.org> List-Subscribe: <mailto:sparclinux+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:sparclinux+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF00017095:EE_|DM6PR12MB4203:EE_ X-MS-Office365-Filtering-Correlation-Id: 4eb4d987-a812-4cdb-a2a9-08dc3237a66d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(36860700004)(40470700004)(46966006);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Feb 2024 17:16:17.5310 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4eb4d987-a812-4cdb-a2a9-08dc3237a66d X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF00017095.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4203 |
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[RFC,01/14] thread_info: Add helpers to test and clear TIF_NOTIFY_IPI
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diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 9ea0b28068f4..1e10dd8c0227 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -195,6 +195,49 @@ static __always_inline bool tif_need_resched(void) #endif /* _ASM_GENERIC_BITOPS_INSTRUMENTED_NON_ATOMIC_H */ +#ifdef TIF_NOTIFY_IPI + +#ifdef _ASM_GENERIC_BITOPS_INSTRUMENTED_NON_ATOMIC_H + +static __always_inline bool tif_notify_ipi(void) +{ + return arch_test_bit(TIF_NOTIFY_IPI, + (unsigned long *)(¤t_thread_info()->flags)); +} + +static __always_inline void current_clr_notify_ipi(void) +{ + arch_clear_bit(TIF_NOTIFY_IPI, + (unsigned long *)(¤t_thread_info()->flags)); +} + +#else + +static __always_inline bool tif_notify_ipi(void) +{ + return test_bit(TIF_NOTIFY_IPI, + (unsigned long *)(¤t_thread_info()->flags)); +} + +static __always_inline void current_clr_notify_ipi(void) +{ + clear_bit(TIF_NOTIFY_IPI, + (unsigned long *)(¤t_thread_info()->flags)); +} + +#endif /* _ASM_GENERIC_BITOPS_INSTRUMENTED_NON_ATOMIC_H */ + +#else /* !TIF_NOTIFY_IPI */ + +static __always_inline bool tif_notify_ipi(void) +{ + return false; +} + +static __always_inline void current_clr_notify_ipi(void) { } + +#endif /* TIF_NOTIFY_IPI */ + #ifndef CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES static inline int arch_within_stack_frames(const void * const stack, const void * const stackend,