You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.7 KiB
98 lines
2.7 KiB
/* |
|
* Copyright (c) 2013-2015, Wind River Systems, Inc. |
|
* |
|
* SPDX-License-Identifier: Apache-2.0 |
|
*/ |
|
|
|
/** |
|
* @file |
|
* @brief system module for variants with LOAPIC |
|
* |
|
*/ |
|
|
|
#include <zephyr/sys/__assert.h> |
|
#include <zephyr/kernel.h> |
|
#include <zephyr/arch/cpu.h> |
|
#include <zephyr/drivers/interrupt_controller/ioapic.h> |
|
#include <zephyr/drivers/interrupt_controller/loapic.h> |
|
#include <zephyr/drivers/interrupt_controller/sysapic.h> |
|
#include <zephyr/irq.h> |
|
#include <zephyr/linker/sections.h> |
|
|
|
#define IS_IOAPIC_IRQ(irq) ((irq) < z_loapic_irq_base()) |
|
#define HARDWARE_IRQ_LIMIT ((z_loapic_irq_base() + LOAPIC_IRQ_COUNT) - 1) |
|
|
|
/** |
|
* @brief Program interrupt controller |
|
* |
|
* This routine programs the interrupt controller with the given vector |
|
* based on the given IRQ parameter. |
|
* |
|
* Drivers call this routine instead of IRQ_CONNECT() when interrupts are |
|
* configured statically. |
|
* |
|
* The Galileo board virtualizes IRQs as follows: |
|
* |
|
* - The first z_ioapic_num_rtes() IRQs are provided by the IOAPIC so the |
|
* IOAPIC is programmed for these IRQs |
|
* - The remaining IRQs are provided by the LOAPIC and hence the LOAPIC is |
|
* programmed. |
|
* |
|
* @param vector the vector number |
|
* @param irq the virtualized IRQ |
|
* @param flags interrupt flags |
|
*/ |
|
__boot_func |
|
void z_irq_controller_irq_config(unsigned int vector, unsigned int irq, |
|
uint32_t flags) |
|
{ |
|
__ASSERT(irq <= HARDWARE_IRQ_LIMIT, "invalid irq line"); |
|
|
|
if (IS_IOAPIC_IRQ(irq)) { |
|
z_ioapic_irq_set(irq, vector, flags); |
|
} else { |
|
z_loapic_int_vec_set(irq - z_loapic_irq_base(), vector); |
|
} |
|
} |
|
|
|
/** |
|
* @brief Enable an individual interrupt (IRQ) |
|
* |
|
* The public interface for enabling/disabling a specific IRQ for the IA-32 |
|
* architecture is defined as follows in include/arch/x86/arch.h |
|
* |
|
* extern void irq_enable (unsigned int irq); |
|
* extern void irq_disable (unsigned int irq); |
|
* |
|
* The irq_enable() routine is provided by the interrupt controller driver due |
|
* to the IRQ virtualization that is performed by this platform. See the |
|
* comments in _interrupt_vector_allocate() for more information regarding IRQ |
|
* virtualization. |
|
*/ |
|
__pinned_func |
|
void arch_irq_enable(unsigned int irq) |
|
{ |
|
if (IS_IOAPIC_IRQ(irq)) { |
|
z_ioapic_irq_enable(irq); |
|
} else { |
|
z_loapic_irq_enable(irq - z_loapic_irq_base()); |
|
} |
|
} |
|
|
|
/** |
|
* @brief Disable an individual interrupt (IRQ) |
|
* |
|
* The irq_disable() routine is provided by the interrupt controller driver due |
|
* to the IRQ virtualization that is performed by this platform. See the |
|
* comments in _interrupt_vector_allocate() for more information regarding IRQ |
|
* virtualization. |
|
*/ |
|
__pinned_func |
|
void arch_irq_disable(unsigned int irq) |
|
{ |
|
if (IS_IOAPIC_IRQ(irq)) { |
|
z_ioapic_irq_disable(irq); |
|
} else { |
|
z_loapic_irq_disable(irq - z_loapic_irq_base()); |
|
} |
|
}
|
|
|