[RFC,v5,11/13] ARM: gic: remove previous local timer interrupt handling

Message ID	1306749894-28749-12-git-send-email-marc.zyngier@arm.com (mailing list archive)
State	New, archived
Headers	show Received: from bombadil.infradead.org (173-166-109-252-newengland.hfc.comcastbusiness.net [173.166.109.252]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p4UAbDR3028225 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for <patchwork-linux-arm@patchwork.kernel.org>; Mon, 30 May 2011 10:37:34 GMT From: Marc Zyngier <marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org Subject: [RFC PATCH v5 11/13] ARM: gic: remove previous local timer interrupt handling Date: Mon, 30 May 2011 11:04:52 +0100 Message-Id: <1306749894-28749-12-git-send-email-marc.zyngier@arm.com> In-Reply-To: <1306749894-28749-1-git-send-email-marc.zyngier@arm.com> References: <1306749894-28749-1-git-send-email-marc.zyngier@arm.com> summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org

diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 2146d5e..2f36979 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -501,16 +501,6 @@ void __cpuinit gic_secondary_init(unsigned int gic_nr) gic_cpu_init(&gic_data[gic_nr]); } -void __cpuinit gic_enable_ppi(unsigned int irq) -{ - unsigned long flags; - - local_irq_save(flags); - irq_set_status_flags(irq, IRQ_NOPROBE); - gic_unmask_irq(irq_get_irq_data(irq)); - local_irq_restore(flags); -} - #ifdef CONFIG_SMP void gic_raise_softirq(const struct cpumask *mask, unsigned int irq) { diff --git a/arch/arm/include/asm/entry-macro-multi.S b/arch/arm/include/asm/entry-macro-multi.S index c599795..4ef27af 100644 --- a/arch/arm/include/asm/entry-macro-multi.S +++ b/arch/arm/include/asm/entry-macro-multi.S @@ -23,13 +23,6 @@ movne r1, sp adrne lr, BSYM(1b) bne do_IPI - -#if defined(CONFIG_LOCAL_TIMERS) && !defined(CONFIG_ARM_GIC_VPPI) - test_for_ltirq r0, r6, r5, lr - movne r0, sp - adrne lr, BSYM(1b) - bne do_local_timer -#endif #endif 9997: .endm diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h index 89ad180..ddf07a9 100644 --- a/arch/arm/include/asm/hardirq.h +++ b/arch/arm/include/asm/hardirq.h @@ -9,9 +9,6 @@ typedef struct { unsigned int __softirq_pending; -#ifdef CONFIG_LOCAL_TIMERS - unsigned int local_timer_irqs; -#endif #ifdef CONFIG_SMP unsigned int ipi_irqs[NR_IPI]; #endif diff --git a/arch/arm/include/asm/hardware/entry-macro-gic.S b/arch/arm/include/asm/hardware/entry-macro-gic.S index 14a3363..db83287 100644 --- a/arch/arm/include/asm/hardware/entry-macro-gic.S +++ b/arch/arm/include/asm/hardware/entry-macro-gic.S @@ -65,16 +65,3 @@ strcc \irqstat, [\base, #GIC_CPU_EOI] cmpcs \irqnr, \irqnr .endm - -#ifndef CONFIG_ARM_GIC_VPPI -/* As above, this assumes that irqstat and base are preserved.. */ - - .macro test_for_ltirq, irqnr, irqstat, base, tmp - bic \irqnr, \irqstat, #0x1c00 - mov \tmp, #0 - cmp \irqnr, #29 - moveq \tmp, #1 - streq \irqstat, [\base, #GIC_CPU_EOI] - cmp \tmp, #0 - .endm -#endif diff --git a/arch/arm/include/asm/hardware/gic.h b/arch/arm/include/asm/hardware/gic.h index 9dbffed..069d4c0 100644 --- a/arch/arm/include/asm/hardware/gic.h +++ b/arch/arm/include/asm/hardware/gic.h @@ -42,7 +42,6 @@ void gic_init(unsigned int, unsigned int, void __iomem *, void __iomem *); void gic_secondary_init(unsigned int); void gic_cascade_irq(unsigned int gic_nr, unsigned int irq); void gic_raise_softirq(const struct cpumask *mask, unsigned int irq); -void gic_enable_ppi(unsigned int); #ifdef CONFIG_ARM_GIC_VPPI unsigned int gic_ppi_to_vppi(unsigned int irq); #else diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h index bef44b3..5c8acb4 100644 --- a/arch/arm/include/asm/localtimer.h +++ b/arch/arm/include/asm/localtimer.h @@ -20,11 +20,6 @@ struct clock_event_device; void percpu_timer_setup(void); /* - * Called from assembly, this is the local timer IRQ handler - */ -asmlinkage void do_local_timer(struct pt_regs *); - -/* * Per-cpu timer IRQ handler */ irqreturn_t percpu_timer_handler(int irq, void *dev_id); diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h index e42d96a..73ec155 100644 --- a/arch/arm/include/asm/smp.h +++ b/arch/arm/include/asm/smp.h @@ -88,9 +88,4 @@ extern void platform_cpu_enable(unsigned int cpu); extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -/* - * show local interrupt info - */ -extern void show_local_irqs(struct seq_file *, int); - #endif /* ifndef __ASM_ARM_SMP_H */ diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 237959f..9f3e427 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -59,9 +59,6 @@ int arch_show_interrupts(struct seq_file *p, int prec) #ifdef CONFIG_SMP show_ipi_list(p, prec); #endif -#ifdef CONFIG_LOCAL_TIMERS - show_local_irqs(p, prec); -#endif seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count); return 0; } diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index daa7088..35135b0 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -426,10 +426,6 @@ u64 smp_irq_stat_cpu(unsigned int cpu) for (i = 0; i < NR_IPI; i++) sum += __get_irq_stat(cpu, ipi_irqs[i]); -#ifdef CONFIG_LOCAL_TIMERS - sum += __get_irq_stat(cpu, local_timer_irqs); -#endif - return sum; } @@ -447,19 +443,6 @@ static void ipi_timer(void) } #ifdef CONFIG_LOCAL_TIMERS -asmlinkage void __exception_irq_entry do_local_timer(struct pt_regs *regs) -{ - struct pt_regs *old_regs = set_irq_regs(regs); - int cpu = smp_processor_id(); - - if (local_timer_ack()) { - __inc_irq_stat(cpu, local_timer_irqs); - ipi_timer(); - } - - set_irq_regs(old_regs); -} - irqreturn_t percpu_timer_handler(int irq, void *dev_id) { struct clock_event_device *evt = dev_id; @@ -471,18 +454,6 @@ irqreturn_t percpu_timer_handler(int irq, void *dev_id) return IRQ_NONE; } - -void show_local_irqs(struct seq_file *p, int prec) -{ - unsigned int cpu; - - seq_printf(p, "%*s: ", prec, "LOC"); - - for_each_present_cpu(cpu) - seq_printf(p, "%10u ", __get_irq_stat(cpu, local_timer_irqs)); - - seq_printf(p, " Local timer interrupts\n"); -} #endif #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index 773336e..aa99656 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -45,10 +45,8 @@ static void twd_set_mode(enum clock_event_mode mode, ctrl = TWD_TIMER_CONTROL_IT_ENABLE | TWD_TIMER_CONTROL_ONESHOT; break; case CLOCK_EVT_MODE_UNUSED: -#ifdef CONFIG_ARM_GIC_VPPI disable_irq(clk->irq); /* fall through */ -#endif case CLOCK_EVT_MODE_SHUTDOWN: default: ctrl = 0; @@ -146,7 +144,6 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk) clk->max_delta_ns = clockevent_delta2ns(0xffffffff, clk); clk->min_delta_ns = clockevent_delta2ns(0xf, clk); -#ifdef CONFIG_ARM_GIC_VPPI reqd = &__get_cpu_var(irq_reqd); if (!*reqd) { err = request_irq(clk->irq, percpu_timer_handler, @@ -161,10 +158,6 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk) *reqd = true; } else enable_irq(clk->irq); -#else - /* Make sure our local interrupt controller has this enabled */ - gic_enable_ppi(clk->irq); -#endif clockevents_register_device(clk); }

[RFC,v5,11/13] ARM: gic: remove previous local timer interrupt handling

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