arch.h

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/*
 * Copyright (c) 2016 Cadence Design Systems, Inc.
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_ARCH_XTENSA_ARCH_H_
#define ZEPHYR_INCLUDE_ARCH_XTENSA_ARCH_H_
 
#include <irq.h>
 
#include <devicetree.h>
#if !defined(_ASMLANGUAGE) && !defined(__ASSEMBLER__)
#include <zephyr/types.h>
#include <toolchain.h>
#include <arch/common/sys_bitops.h>
#include <arch/common/sys_io.h>
#include <arch/common/ffs.h>
#include <sw_isr_table.h>
#include <arch/xtensa/thread.h>
#include <arch/xtensa/irq.h>
#include <xtensa/config/core.h>
#include <arch/common/addr_types.h>
 
#ifdef CONFIG_KERNEL_COHERENCE
#define ARCH_STACK_PTR_ALIGN XCHAL_DCACHE_LINESIZE
#else
#define ARCH_STACK_PTR_ALIGN 16
#endif
 
/* Xtensa GPRs are often designated by two different names */
#define sys_define_gpr_with_alias(name1, name2) union { uint32_t name1, name2; }
 
#include <arch/xtensa/exc.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* internal routine documented in C file, needed by IRQ_CONNECT() macro */
extern void z_irq_priority_set(uint32_t irq, uint32_t prio, uint32_t flags);
 
#define ARCH_IRQ_CONNECT(irq_p, priority_p, isr_p, isr_param_p, flags_p) \
{ \
        Z_ISR_DECLARE(irq_p, flags_p, isr_p, isr_param_p); \
}
 
/* Spurious interrupt handler. Throws an error if called */
extern void z_irq_spurious(const void *unused);
 
#define XTENSA_ERR_NORET
 
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();
}
 
static ALWAYS_INLINE void arch_nop(void)
{
        __asm__ volatile("nop");
}
 
#ifdef __cplusplus
}
#endif
 
#endif /* !defined(_ASMLANGUAGE) && !defined(__ASSEMBLER__)  */
 
#endif /* ZEPHYR_INCLUDE_ARCH_XTENSA_ARCH_H_ */