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Fri, 07 Oct 2022 08:46:03 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5BU2FP8ts0HH9McA8hGqt4EcEkhUio8tUw5hjcE8rRRaWGVB+HCzlKu55T50nu8VVd2MVS1w== X-Received: by 2002:a05:600c:474c:b0:3b4:cbca:5677 with SMTP id w12-20020a05600c474c00b003b4cbca5677mr3615475wmo.76.1665157563388; Fri, 07 Oct 2022 08:46:03 -0700 (PDT) Received: from vschneid.remote.csb ([149.71.65.94]) by smtp.gmail.com with ESMTPSA id i18-20020adfb652000000b0022e38c93195sm2339428wre.34.2022.10.07.08.45.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Oct 2022 08:46:01 -0700 (PDT) From: Valentin Schneider To: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, x86@kernel.org Subject: [RFC PATCH 3/5] smp: Add a multi-CPU variant to send_call_function_single_ipi() Date: Fri, 7 Oct 2022 16:45:31 +0100 Message-Id: <20221007154533.1878285-3-vschneid@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20221007154145.1877054-1-vschneid@redhat.com> References: <20221007154145.1877054-1-vschneid@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Mailman-Approved-At: Sat, 08 Oct 2022 12:28:34 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juri Lelli , Mark Rutland , Dave Hansen , "Paul E. McKenney" , Peter Zijlstra , Marc Zyngier , Sebastian Andrzej Siewior , Marcelo Tosatti , Russell King , Steven Rostedt , "David S. Miller" , Ingo Molnar , Borislav Petkov , Nicholas Piggin , "H. Peter Anvin" , Guo Ren , Thomas Gleixner , Daniel Bristot de Oliveira , Frederic Weisbecker Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This simply wraps around the arch function and prepends it with a tracepoint, bringing parity with send_call_function_single_ipi(). Signed-off-by: Valentin Schneider --- kernel/smp.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/kernel/smp.c b/kernel/smp.c index 7a7a22d69972..387735180aed 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -160,6 +160,12 @@ void __init call_function_init(void) smpcfd_prepare_cpu(smp_processor_id()); } +static inline void send_call_function_ipi_mask(const struct cpumask *mask) +{ + trace_ipi_send_cpumask(_RET_IP_, mask); + arch_send_call_function_ipi_mask(mask); +} + #ifdef CONFIG_CSD_LOCK_WAIT_DEBUG static DEFINE_STATIC_KEY_FALSE(csdlock_debug_enabled); @@ -970,7 +976,7 @@ static void smp_call_function_many_cond(const struct cpumask *mask, if (nr_cpus == 1) send_call_function_single_ipi(last_cpu); else if (likely(nr_cpus > 1)) - arch_send_call_function_ipi_mask(cfd->cpumask_ipi); + send_call_function_ipi_mask(cfd->cpumask_ipi); cfd_seq_store(this_cpu_ptr(&cfd_seq_local)->pinged, this_cpu, CFD_SEQ_NOCPU, CFD_SEQ_PINGED); } -- 2.31.1