irq: Change dynamic API to take a constant parameter

All ISRs are meant to take a const struct device pointer, but to
simplify the change let's just move the parameter to constant and that
should be fine.

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>

arch/common/gen_isr_tables.py

@@ -61,7 +61,7 @@ def read_intlist(intlist_path, syms):
         /** ISR to call */
         void *func;
         /** Parameter for non-direct IRQs */
-        void *param;
+        const void *param;
     };
     """
 
@@ -175,7 +175,7 @@ def write_source_file(fp, vt, swt, intlist, syms):
             fp.write("\t/* Level 3 interrupts start here (offset: {}) */\n".
                      format(level3_offset))
 
-        fp.write("\t{{(void *){0:#x}, (void *){1}}},\n".format(param, func_as_string))
+        fp.write("\t{{(const void *){0:#x}, (void *){1}}},\n".format(param, func_as_string))
     fp.write("};\n")
 
 def get_symbols(obj):

arch/common/isr_tables.c

@@ -60,6 +60,7 @@ uint32_t __irq_vector_table _irq_vector_table[IRQ_TABLE_SIZE] = {
  */
 #ifdef CONFIG_GEN_SW_ISR_TABLE
 struct _isr_table_entry __sw_isr_table _sw_isr_table[IRQ_TABLE_SIZE] = {
-	[0 ...(IRQ_TABLE_SIZE - 1)] = {(void *)0x42, (void *)&z_irq_spurious},
+	[0 ...(IRQ_TABLE_SIZE - 1)] = {(const void *)0x42,
+				       (void *)&z_irq_spurious},
 };
 #endif

include/arch/xtensa/irq.h

@@ -38,8 +38,8 @@
 
 #ifdef CONFIG_DYNAMIC_INTERRUPTS
 extern int z_soc_irq_connect_dynamic(unsigned int irq, unsigned int priority,
-				     void (*routine)(void *parameter),
-				     void *parameter, uint32_t flags);
+				     void (*routine)(const void *parameter),
+				     const void *parameter, uint32_t flags);
 #endif
 
 #else

include/irq.h

@@ -63,8 +63,8 @@ extern "C" {
  */
 static inline int
 irq_connect_dynamic(unsigned int irq, unsigned int priority,
-		    void (*routine)(void *parameter), void *parameter,
-		    uint32_t flags)
+		    void (*routine)(const void *parameter),
+		    const void *parameter, uint32_t flags)
 {
 	return arch_irq_connect_dynamic(irq, priority, routine, parameter,
 					flags);

include/sw_isr_table.h

@@ -28,8 +28,8 @@ extern "C" {
  * on ARM Cortex-M (Thumb2).
  */
 struct _isr_table_entry {
-	void *arg;
-	void (*isr)(void *);
+	const void *arg;
+	void (*isr)(const void *);
 };
 
 /* The software ISR table itself, an array of these structures indexed by the
@@ -52,7 +52,7 @@ struct _isr_list {
 	/** ISR to call */
 	void *func;
 	/** Parameter for non-direct IRQs */
-	void *param;
+	const void *param;
 };
 
 /** This interrupt gets put directly in the vector table */
@@ -68,12 +68,13 @@ struct _isr_list {
 #define Z_ISR_DECLARE(irq, flags, func, param) \
 	static Z_DECL_ALIGN(struct _isr_list) Z_GENERIC_SECTION(.intList) \
 		__used _MK_ISR_NAME(func, __COUNTER__) = \
-			{irq, flags, (void *)&func, (void *)param}
+			{irq, flags, (void *)&func, (const void *)param}
 
 #define IRQ_TABLE_SIZE (CONFIG_NUM_IRQS - CONFIG_GEN_IRQ_START_VECTOR)
 
 #ifdef CONFIG_DYNAMIC_INTERRUPTS
-void z_isr_install(unsigned int irq, void (*routine)(void *), void *param);
+void z_isr_install(unsigned int irq, void (*routine)(const void *),
+		   const void *param);
 #endif
 
 #ifdef __cplusplus

include/sys/arch_interface.h

@@ -280,8 +280,8 @@ int arch_irq_is_enabled(unsigned int irq);
  * @return The vector assigned to this interrupt
  */
 int arch_irq_connect_dynamic(unsigned int irq, unsigned int priority,
-			     void (*routine)(void *parameter),
-			     void *parameter, uint32_t flags);
+			     void (*routine)(const void *parameter),
+			     const void *parameter, uint32_t flags);
 
 /**
  * @def ARCH_IRQ_CONNECT(irq, pri, isr, arg, flags)