22 #include <zephyr/irq.h>
58  * @brief return edge irq value or zero
60  * In the event edge irq is enable this will return the trigger
61  * value of the irq. In the event edge irq is not supported this
64  * @param irq IRQ number to add to the trigger
66  * @return irq value when enabled 0 otherwise
68 static int riscv_plic_is_edge_irq(uint32_t irq)  in riscv_plic_is_edge_irq()  argument
72 	trig += (irq >> PLIC_EDGE_TRIG_SHIFT);  in riscv_plic_is_edge_irq()
73 	return *trig & BIT(irq);  in riscv_plic_is_edge_irq()
84  * @param irq IRQ number to enable
86 void riscv_plic_irq_enable(uint32_t irq)  in riscv_plic_irq_enable()  argument
92 	en += (irq >> 5);  in riscv_plic_irq_enable()
93 	*en |= (1 << (irq & 31));  in riscv_plic_irq_enable()
105  * @param irq IRQ number to disable
107 void riscv_plic_irq_disable(uint32_t irq)  in riscv_plic_irq_disable()  argument
113 	en += (irq >> 5);  in riscv_plic_irq_disable()
114 	*en &= ~(1 << (irq & 31));  in riscv_plic_irq_disable()
122  * @param irq IRQ number to check
126 int riscv_plic_irq_is_enabled(uint32_t irq)  in riscv_plic_irq_is_enabled()  argument
130 	en += (irq >> 5);  in riscv_plic_irq_is_enabled()
131 	return !!(*en & (1 << (irq & 31)));  in riscv_plic_irq_is_enabled()
141  * @param irq IRQ number for which to set priority
142  * @param priority Priority of IRQ to set to
144 void riscv_plic_set_priority(uint32_t irq, uint32_t priority)  in riscv_plic_set_priority()  argument
151 	prio += irq;  in riscv_plic_set_priority()
173 	uint32_t irq;  in plic_irq_handler()  local
177 	/* Get the IRQ number generating the interrupt */  in plic_irq_handler()
178 	irq = regs->claim_complete;  in plic_irq_handler()
181 	 * Save IRQ in save_irq. To be used, if need be, by  in plic_irq_handler()
183 	 * as IRQ number held by the claim_complete register is  in plic_irq_handler()
186 	save_irq = irq;  in plic_irq_handler()
189 	 * If the IRQ is out of range, call z_irq_spurious.  in plic_irq_handler()
192 	if (irq == 0U || irq >= PLIC_IRQS)  in plic_irq_handler()
195 	edge_irq = riscv_plic_is_edge_irq(irq);  in plic_irq_handler()
199 	 * to indicate to the PLIC controller that the IRQ has been handled  in plic_irq_handler()
205 	irq += CONFIG_2ND_LVL_ISR_TBL_OFFSET;  in plic_irq_handler()
207 	/* Call the corresponding IRQ handler in _sw_isr_table */  in plic_irq_handler()
208 	ite = (struct _isr_table_entry *)&_sw_isr_table[irq];  in plic_irq_handler()
213 	 * PLIC controller that the IRQ has been handled  in plic_irq_handler()
249 	/* Setup IRQ handler for PLIC driver */  in plic_init()
256 	/* Enable IRQ for PLIC driver */  in plic_init()