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/*
* Copyright (c) 2020 Antony Pavlov <antonynpavlov@gmail.com>
*
* based on include/arch/sparc/arch.h
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_INCLUDE_ARCH_MIPS_ARCH_H_
#define ZEPHYR_INCLUDE_ARCH_MIPS_ARCH_H_
#include <arch/mips/thread.h>
#include <arch/mips/exp.h>
#include <arch/common/sys_bitops.h>
#include <arch/common/sys_io.h>
#include <arch/common/ffs.h>
#include <irq.h>
#include <sw_isr_table.h>
#include <devicetree.h>
#include <mips/mipsregs.h>
#define ARCH_STACK_PTR_ALIGN 16
#define OP_LOADREG lw
#define OP_STOREREG sw
#define CP0_STATUS_DEF_RESTORE (ST0_EXL | ST0_IE)
#ifndef _ASMLANGUAGE
#include <sys/util.h>
#ifdef __cplusplus
extern "C" {
#endif
#define STACK_ROUND_UP(x) ROUND_UP(x, ARCH_STACK_PTR_ALIGN)
void arch_irq_enable(unsigned int irq);
void arch_irq_disable(unsigned int irq);
int arch_irq_is_enabled(unsigned int irq);
void z_irq_spurious(const void *unused);
/**
* Configure a static interrupt.
*
* All arguments must be computable by the compiler at build time.
*
* @param irq_p IRQ line number
* @param priority_p Interrupt priority
* @param isr_p Interrupt service routine
* @param isr_param_p ISR parameter
* @param flags_p IRQ options
*
* @return The vector assigned to this interrupt
*/
#define ARCH_IRQ_CONNECT(irq_p, priority_p, isr_p, isr_param_p, flags_p) \
{ \
Z_ISR_DECLARE(irq_p, 0, isr_p, isr_param_p); \
}
static ALWAYS_INLINE unsigned int arch_irq_lock(void)
{
uint32_t status = read_c0_status();
if (status & ST0_IE) {
write_c0_status(status & ~ST0_IE);
return 1;
}
return 0;
}
static ALWAYS_INLINE void arch_irq_unlock(unsigned int key)
{
uint32_t status = read_c0_status();
if (key) {
status |= ST0_IE;
} else {
status &= ~ST0_IE;
}
write_c0_status(status);
}
static ALWAYS_INLINE bool arch_irq_unlocked(unsigned int key)
{
return key != 0;
}
static ALWAYS_INLINE void arch_nop(void)
{
__asm__ volatile ("nop");
}
extern uint32_t sys_clock_cycle_get_32(void);
static inline uint32_t arch_k_cycle_get_32(void)
{
return sys_clock_cycle_get_32();
}
extern uint64_t sys_clock_cycle_get_64(void);
static inline uint64_t arch_k_cycle_get_64(void)
{
return sys_clock_cycle_get_64();
}
#ifdef __cplusplus
}
#endif
#endif /* _ASMLANGUAGE */
#endif /* ZEPHYR_INCLUDE_ARCH_MIPS_ARCH_H_ */