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LoongArch: Export symbol for function smp_send_reschedule() 

Function smp_send_reschedule() is standard kernel API, which is defined
in header file include/linux/smp.h. However, on LoongArch it is defined
as an inline function, this is confusing and kernel modules can not use
this function.

Now we define smp_send_reschedule() as a general function, and add a
EXPORT_SYMBOL_GPL on this function, so that kernel modules can use it.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Bibo Mao 2022-12-08 14:59:15 +08:00 committed by Huacai Chen
parent 76dcd734ec
commit 143d64bdbd
2 changed files with 11 additions and 10 deletions
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10
arch/loongarch/include/asm/smp.h
View File

@ -78,16 +78,6 @@ extern void calculate_cpu_foreign_map(void);
*/
extern void show_ipi_list(struct seq_file *p, int prec);
/*
* This function sends a 'reschedule' IPI to another CPU.
* it goes straight through and wastes no time serializing
* anything. Worst case is that we lose a reschedule ...
*/
static inline void smp_send_reschedule(int cpu)
{
loongson_send_ipi_single(cpu, SMP_RESCHEDULE);
}
static inline void arch_send_call_function_single_ipi(int cpu)
{
loongson_send_ipi_single(cpu, SMP_CALL_FUNCTION);

11
arch/loongarch/kernel/smp.c
View File

@ -149,6 +149,17 @@ void loongson_send_ipi_mask(const struct cpumask *mask, unsigned int action)
ipi_write_action(cpu_logical_map(i), (u32)action);
}
/*
* This function sends a 'reschedule' IPI to another CPU.
* it goes straight through and wastes no time serializing
* anything. Worst case is that we lose a reschedule ...
*/
void smp_send_reschedule(int cpu)
{
loongson_send_ipi_single(cpu, SMP_RESCHEDULE);
}
EXPORT_SYMBOL_GPL(smp_send_reschedule);
irqreturn_t loongson_ipi_interrupt(int irq, void *dev)
{
unsigned int action;