arch/x86: Generalize dynamic irq connection on given vector
This will be used by MSI multi-vector implementation to connect the irq
and the vector prior to allocation.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
diff --git a/arch/x86/core/intel64/irq.c b/arch/x86/core/intel64/irq.c
index af6f19c..2c8c86a 100644
--- a/arch/x86/core/intel64/irq.c
+++ b/arch/x86/core/intel64/irq.c
@@ -80,6 +80,17 @@
return -1;
}
+void z_x86_irq_connect_on_vector(unsigned int irq,
+ uint8_t vector,
+ void (*func)(const void *arg),
+ const void *arg, uint32_t flags)
+{
+ _irq_to_interrupt_vector[irq] = vector;
+ z_irq_controller_irq_config(vector, irq, flags);
+ x86_irq_funcs[vector - IV_IRQS] = func;
+ x86_irq_args[vector - IV_IRQS] = arg;
+}
+
/*
* N.B.: the API docs don't say anything about returning error values, but
* this function returns -1 if a vector at the specific priority can't be
@@ -99,10 +110,7 @@
vector = z_x86_allocate_vector(priority, -1);
if (vector >= 0) {
- _irq_to_interrupt_vector[irq] = vector;
- z_irq_controller_irq_config(vector, irq, flags);
- x86_irq_funcs[vector - IV_IRQS] = func;
- x86_irq_args[vector - IV_IRQS] = arg;
+ z_x86_irq_connect_on_vector(irq, vector, func, arg, flags);
}
irq_unlock(key);
diff --git a/arch/x86/include/kernel_arch_func.h b/arch/x86/include/kernel_arch_func.h
index 15be051..a0919e6 100644
--- a/arch/x86/include/kernel_arch_func.h
+++ b/arch/x86/include/kernel_arch_func.h
@@ -100,6 +100,14 @@
*/
int z_x86_allocate_vector(unsigned int priority, int prev_vector);
+/*
+ * Connect a vector
+ */
+void z_x86_irq_connect_on_vector(unsigned int irq,
+ uint8_t vector,
+ void (*func)(const void *arg),
+ const void *arg, uint32_t flags);
+
#endif /* !_ASMLANGUAGE */
#endif /* ZEPHYR_ARCH_X86_INCLUDE_KERNEL_ARCH_FUNC_H_ */
