arch: riscv: define local soc_interrupt_init prototypes

Instead of relying on messy soc.h files which are included via a fragile
chain of includes.

Signed-off-by: Gerard Marull-Paretas <[email protected]>

Author: gmarull

arch/riscv/core/prep_c.c

@@ -20,6 +20,10 @@
 #include <zephyr/kernel_structs.h>
 #include <kernel_internal.h>
 
+#if defined(CONFIG_RISCV_SOC_INTERRUPT_INIT)
+void soc_interrupt_init(void);
+#endif
+
 /**
  *
  * @brief Prepare to and run C code

arch/riscv/core/smp.c

@@ -23,6 +23,10 @@ volatile void *riscv_cpu_sp;
 
 extern void __start(void);
 
+#if defined(CONFIG_RISCV_SOC_INTERRUPT_INIT)
+void soc_interrupt_init(void);
+#endif
+
 void arch_start_cpu(int cpu_num, k_thread_stack_t *stack, int sz,
 		    arch_cpustart_t fn, void *arg)
 {

soc/riscv/common/riscv-privileged/soc_common.h

@@ -17,10 +17,6 @@
 #include <zephyr/drivers/interrupt_controller/riscv_clic.h>
 #include <zephyr/drivers/interrupt_controller/riscv_plic.h>
 
-#if defined(CONFIG_RISCV_SOC_INTERRUPT_INIT)
-void soc_interrupt_init(void);
-#endif
-
 #endif /* !_ASMLANGUAGE */
 
 #endif /* __SOC_COMMON_H_ */

soc/riscv/ite_ec/it8xxx2/soc.h

@@ -25,8 +25,4 @@ COND_CODE_1(DT_NODE_EXISTS(DT_INST(1, ite_it8xxx2_usbpd)), (2), (1))
  */
 #define SOC_USBPD_ITE_ACTIVE_PORT_COUNT DT_NUM_INST_STATUS_OKAY(ite_it8xxx2_usbpd)
 
-#ifndef _ASMLANGUAGE
-void soc_interrupt_init(void);
-#endif
-
 #endif /* __RISCV_ITE_SOC_H_ */

soc/riscv/openisa_rv32m1/soc.h

@@ -94,8 +94,6 @@ static inline uint32_t rv32m1_intmux_line(unsigned int irq)
 	return ((irq >> 8) & 0xff) - 1;
 }
 
-void soc_interrupt_init(void);
-
 #endif	/* !_ASMLANGUAGE */
 
 #if defined(CONFIG_SOC_OPENISA_RV32M1_RI5CY)