static int __init arch_timer_mem_register(void __iomem *base, unsigned int irq)
{
int ret;
irq_handler_t func;
struct arch_timer *t;
t = kzalloc(sizeof(*t), GFP_KERNEL);
if (!t)
return -ENOMEM;
t->base = base;
t->evt.irq = irq;
__arch_timer_setup(ARCH_MEM_TIMER, &t->evt);
if (arch_timer_mem_use_virtual)
func = arch_timer_handler_virt_mem;
else
func = arch_timer_handler_phys_mem;
ret = request_irq(irq, func, IRQF_TIMER, "arch_mem_timer", &t->evt);
if (ret) {
pr_err("arch_timer: Failed to request mem timer irq\n");
kfree(t);
}
return ret;
}
static int __cpuinit arch_timer_setup(struct clock_event_device *clk)
{
__arch_timer_setup(ARCH_CP15_TIMER, clk);
if (arch_timer_use_virtual)
enable_percpu_irq(arch_timer_ppi[VIRT_PPI], 0);
else {
enable_percpu_irq(arch_timer_ppi[PHYS_SECURE_PPI], 0);
if (arch_timer_ppi[PHYS_NONSECURE_PPI])
enable_percpu_irq(arch_timer_ppi[PHYS_NONSECURE_PPI], 0);
}
arch_counter_set_user_access();
return 0;
}
static int arch_timer_setup(struct clock_event_device *clk)
{
__arch_timer_setup(ARCH_CP15_TIMER, clk);
if (arch_timer_use_virtual)
enable_percpu_irq(arch_timer_ppi[VIRT_PPI], 0);
else {
enable_percpu_irq(arch_timer_ppi[PHYS_SECURE_PPI], 0);
if (arch_timer_ppi[PHYS_NONSECURE_PPI])
enable_percpu_irq(arch_timer_ppi[PHYS_NONSECURE_PPI], 0);
}
arch_counter_set_user_access();
if (IS_ENABLED(CONFIG_ARM_ARCH_TIMER_EVTSTREAM))
arch_timer_configure_evtstream();
return 0;
}
static int arch_timer_starting_cpu(unsigned int cpu)
{
struct clock_event_device *clk = this_cpu_ptr(arch_timer_evt);
u32 flags;
__arch_timer_setup(ARCH_CP15_TIMER, clk);
flags = check_ppi_trigger(arch_timer_ppi[arch_timer_uses_ppi]);
enable_percpu_irq(arch_timer_ppi[arch_timer_uses_ppi], flags);
if (arch_timer_has_nonsecure_ppi()) {
flags = check_ppi_trigger(arch_timer_ppi[PHYS_NONSECURE_PPI]);
enable_percpu_irq(arch_timer_ppi[PHYS_NONSECURE_PPI], flags);
}
arch_counter_set_user_access();
if (evtstrm_enable)
arch_timer_configure_evtstream();
return 0;
}
