diff options
author | Marc Zyngier <maz@kernel.org> | 2020-05-09 14:00:23 +0100 |
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committer | Marc Zyngier <maz@kernel.org> | 2020-09-17 16:37:28 +0100 |
commit | 5cebfd2d47c214f69d918e3d34ad183c061eddb2 (patch) | |
tree | d606cdd6da3e145018afa3b108de8845925d3188 /arch/arm64/kernel/smp.c | |
parent | f02147dd02eb5fab31b55b73e7524f94b5f20324 (diff) | |
download | linux-5cebfd2d47c214f69d918e3d34ad183c061eddb2.tar.bz2 |
arm64: Kill __smp_cross_call and co
The old IPI registration interface is now unused on arm64, so let's
get rid of it.
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/smp.c')
-rw-r--r-- | arch/arm64/kernel/smp.c | 38 |
1 files changed, 7 insertions, 31 deletions
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 00c9db1b61b5..58fb155fb0ab 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -782,13 +782,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus) } } -void (*__smp_cross_call)(const struct cpumask *, unsigned int); - -void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int)) -{ - __smp_cross_call = fn; -} - static const char *ipi_types[NR_IPI] __tracepoint_string = { #define S(x,s) [x] = s S(IPI_RESCHEDULE, "Rescheduling interrupts"), @@ -800,11 +793,7 @@ static const char *ipi_types[NR_IPI] __tracepoint_string = { S(IPI_WAKEUP, "CPU wake-up interrupts"), }; -static void smp_cross_call(const struct cpumask *target, unsigned int ipinr) -{ - trace_ipi_raise(target, ipi_types[ipinr]); - __smp_cross_call(target, ipinr); -} +static void smp_cross_call(const struct cpumask *target, unsigned int ipinr); void show_ipi_list(struct seq_file *p, int prec) { @@ -851,8 +840,7 @@ void arch_send_wakeup_ipi_mask(const struct cpumask *mask) #ifdef CONFIG_IRQ_WORK void arch_irq_work_raise(void) { - if (__smp_cross_call) - smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK); + smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK); } #endif @@ -959,34 +947,23 @@ static void do_handle_IPI(int ipinr) trace_ipi_exit_rcuidle(ipi_types[ipinr]); } -/* Legacy version, should go away once all irqchips have been converted */ -void handle_IPI(int ipinr, struct pt_regs *regs) -{ - struct pt_regs *old_regs = set_irq_regs(regs); - - irq_enter(); - do_handle_IPI(ipinr); - irq_exit(); - - set_irq_regs(old_regs); -} - static irqreturn_t ipi_handler(int irq, void *data) { do_handle_IPI(irq - ipi_irq_base); return IRQ_HANDLED; } -static void ipi_send(const struct cpumask *target, unsigned int ipi) +static void smp_cross_call(const struct cpumask *target, unsigned int ipinr) { - __ipi_send_mask(ipi_desc[ipi], target); + trace_ipi_raise(target, ipi_types[ipinr]); + __ipi_send_mask(ipi_desc[ipinr], target); } static void ipi_setup(int cpu) { int i; - if (!ipi_irq_base) + if (WARN_ON_ONCE(!ipi_irq_base)) return; for (i = 0; i < nr_ipi; i++) @@ -997,7 +974,7 @@ static void ipi_teardown(int cpu) { int i; - if (!ipi_irq_base) + if (WARN_ON_ONCE(!ipi_irq_base)) return; for (i = 0; i < nr_ipi; i++) @@ -1023,7 +1000,6 @@ void __init set_smp_ipi_range(int ipi_base, int n) } ipi_irq_base = ipi_base; - __smp_cross_call = ipi_send; /* Setup the boot CPU immediately */ ipi_setup(smp_processor_id()); |