From: Jingyi Wang <wangjingyi11@huawei.com> To: <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Cc: <maz@kernel.org>, <tglx@linutronix.de>, <wanghaibin.wang@huawei.com>, <wangjingyi11@huawei.com>, <yuzenghui@huawei.com>, <zhukeqian1@huawei.com> Subject: [RFC PATCH 3/3] arm/arm64: Use gic_ipi_send_single() to inject single IPI Date: Mon, 29 Mar 2021 16:52:10 +0800 [thread overview] Message-ID: <20210329085210.11524-4-wangjingyi11@huawei.com> (raw) In-Reply-To: <20210329085210.11524-1-wangjingyi11@huawei.com> Currently, arm use gic_ipi_send_mask() to inject single IPI, which make the procedure a little complex. We use gic_ipi_send_single() instead as some other archs. Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com> --- arch/arm/kernel/smp.c | 16 +++++++++++++--- arch/arm64/kernel/smp.c | 16 +++++++++++++--- 2 files changed, 26 insertions(+), 6 deletions(-) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 74679240a9d8..369ce529cdd8 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -534,6 +534,8 @@ static const char *ipi_types[NR_IPI] __tracepoint_string = { }; static void smp_cross_call(const struct cpumask *target, unsigned int ipinr); +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr); void show_ipi_list(struct seq_file *p, int prec) { @@ -564,14 +566,15 @@ void arch_send_wakeup_ipi_mask(const struct cpumask *mask) void arch_send_call_function_single_ipi(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_CALL_FUNC); } #ifdef CONFIG_IRQ_WORK void arch_irq_work_raise(void) { + int cpu = smp_processor_id(); if (arch_irq_work_has_interrupt()) - smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK); + smp_cross_call(cpumask_of(cpu), cpu, IPI_IRQ_WORK); } #endif @@ -707,6 +710,13 @@ static void smp_cross_call(const struct cpumask *target, unsigned int ipinr) __ipi_send_mask(ipi_desc[ipinr], target); } +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr) +{ + trace_ipi_raise_rcuidle(target, ipi_types[ipinr]); + __ipi_send_single(ipi_desc[ipinr], cpu); +} + static void ipi_setup(int cpu) { int i; @@ -744,7 +754,7 @@ void __init set_smp_ipi_range(int ipi_base, int n) void smp_send_reschedule(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_RESCHEDULE); } void smp_send_stop(void) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 357590beaabb..d290b6dc5a6e 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -801,6 +801,8 @@ static const char *ipi_types[NR_IPI] __tracepoint_string = { }; static void smp_cross_call(const struct cpumask *target, unsigned int ipinr); +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr); unsigned long irq_err_count; @@ -827,7 +829,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) void arch_send_call_function_single_ipi(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_CALL_FUNC); } #ifdef CONFIG_ARM64_ACPI_PARKING_PROTOCOL @@ -840,7 +842,8 @@ void arch_send_wakeup_ipi_mask(const struct cpumask *mask) #ifdef CONFIG_IRQ_WORK void arch_irq_work_raise(void) { - smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK); + int cpu = smp_processor_id(); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_IRQ_WORK); } #endif @@ -957,6 +960,13 @@ static void smp_cross_call(const struct cpumask *target, unsigned int ipinr) __ipi_send_mask(ipi_desc[ipinr], target); } +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr) +{ + trace_ipi_raise(target, ipi_types[ipinr]); + __ipi_send_single(ipi_desc[ipinr], cpu); +} + static void ipi_setup(int cpu) { int i; @@ -1007,7 +1017,7 @@ void __init set_smp_ipi_range(int ipi_base, int n) void smp_send_reschedule(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_RESCHEDULE); } #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST -- 2.19.1
WARNING: multiple messages have this Message-ID (diff)
From: Jingyi Wang <wangjingyi11@huawei.com> To: <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Cc: <maz@kernel.org>, <tglx@linutronix.de>, <wanghaibin.wang@huawei.com>, <wangjingyi11@huawei.com>, <yuzenghui@huawei.com>, <zhukeqian1@huawei.com> Subject: [RFC PATCH 3/3] arm/arm64: Use gic_ipi_send_single() to inject single IPI Date: Mon, 29 Mar 2021 16:52:10 +0800 [thread overview] Message-ID: <20210329085210.11524-4-wangjingyi11@huawei.com> (raw) In-Reply-To: <20210329085210.11524-1-wangjingyi11@huawei.com> Currently, arm use gic_ipi_send_mask() to inject single IPI, which make the procedure a little complex. We use gic_ipi_send_single() instead as some other archs. Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com> --- arch/arm/kernel/smp.c | 16 +++++++++++++--- arch/arm64/kernel/smp.c | 16 +++++++++++++--- 2 files changed, 26 insertions(+), 6 deletions(-) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 74679240a9d8..369ce529cdd8 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -534,6 +534,8 @@ static const char *ipi_types[NR_IPI] __tracepoint_string = { }; static void smp_cross_call(const struct cpumask *target, unsigned int ipinr); +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr); void show_ipi_list(struct seq_file *p, int prec) { @@ -564,14 +566,15 @@ void arch_send_wakeup_ipi_mask(const struct cpumask *mask) void arch_send_call_function_single_ipi(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_CALL_FUNC); } #ifdef CONFIG_IRQ_WORK void arch_irq_work_raise(void) { + int cpu = smp_processor_id(); if (arch_irq_work_has_interrupt()) - smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK); + smp_cross_call(cpumask_of(cpu), cpu, IPI_IRQ_WORK); } #endif @@ -707,6 +710,13 @@ static void smp_cross_call(const struct cpumask *target, unsigned int ipinr) __ipi_send_mask(ipi_desc[ipinr], target); } +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr) +{ + trace_ipi_raise_rcuidle(target, ipi_types[ipinr]); + __ipi_send_single(ipi_desc[ipinr], cpu); +} + static void ipi_setup(int cpu) { int i; @@ -744,7 +754,7 @@ void __init set_smp_ipi_range(int ipi_base, int n) void smp_send_reschedule(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_RESCHEDULE); } void smp_send_stop(void) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 357590beaabb..d290b6dc5a6e 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -801,6 +801,8 @@ static const char *ipi_types[NR_IPI] __tracepoint_string = { }; static void smp_cross_call(const struct cpumask *target, unsigned int ipinr); +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr); unsigned long irq_err_count; @@ -827,7 +829,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) void arch_send_call_function_single_ipi(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_CALL_FUNC); } #ifdef CONFIG_ARM64_ACPI_PARKING_PROTOCOL @@ -840,7 +842,8 @@ void arch_send_wakeup_ipi_mask(const struct cpumask *mask) #ifdef CONFIG_IRQ_WORK void arch_irq_work_raise(void) { - smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK); + int cpu = smp_processor_id(); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_IRQ_WORK); } #endif @@ -957,6 +960,13 @@ static void smp_cross_call(const struct cpumask *target, unsigned int ipinr) __ipi_send_mask(ipi_desc[ipinr], target); } +static void smp_cross_call_single(const struct cpumask *target, int cpu, + unsigned int ipinr) +{ + trace_ipi_raise(target, ipi_types[ipinr]); + __ipi_send_single(ipi_desc[ipinr], cpu); +} + static void ipi_setup(int cpu) { int i; @@ -1007,7 +1017,7 @@ void __init set_smp_ipi_range(int ipi_base, int n) void smp_send_reschedule(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); + smp_cross_call_single(cpumask_of(cpu), cpu, IPI_RESCHEDULE); } #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST -- 2.19.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-03-29 9:06 UTC|newest] Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-29 8:52 [RFC PATCH 0/3] arm: Some IPI injection optimization Jingyi Wang 2021-03-29 8:52 ` Jingyi Wang 2021-03-29 8:52 ` [RFC PATCH 1/3] irqchip/gic-v3: Make use of ICC_SGI1R IRM bit Jingyi Wang 2021-03-29 8:52 ` Jingyi Wang 2021-03-29 9:55 ` Marc Zyngier 2021-03-29 9:55 ` Marc Zyngier 2021-03-29 10:38 ` Jingyi Wang 2021-03-29 10:38 ` Jingyi Wang 2021-03-29 11:28 ` Marc Zyngier 2021-03-29 11:28 ` Marc Zyngier 2021-03-29 8:52 ` [RFC PATCH 2/3] irqchip/gic-v3: Implement gic_ipi_send_single() Jingyi Wang 2021-03-29 8:52 ` Jingyi Wang 2021-03-29 8:52 ` Jingyi Wang [this message] 2021-03-29 8:52 ` [RFC PATCH 3/3] arm/arm64: Use gic_ipi_send_single() to inject single IPI Jingyi Wang 2021-03-29 10:07 ` Marc Zyngier 2021-03-29 10:07 ` Marc Zyngier 2021-03-29 11:03 ` Jingyi Wang 2021-03-29 11:03 ` Jingyi Wang 2021-03-29 15:09 ` kernel test robot
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210329085210.11524-4-wangjingyi11@huawei.com \ --to=wangjingyi11@huawei.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=maz@kernel.org \ --cc=tglx@linutronix.de \ --cc=wanghaibin.wang@huawei.com \ --cc=yuzenghui@huawei.com \ --cc=zhukeqian1@huawei.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.