arch_inlines.h

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/*
 * Copyright (c) 2016 Cadence Design Systems, Inc.
 * Copyright (c) 2019 Stephanos Ioannidis <root@stephanos.io>
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_ARCH_XTENSA_ARCH_INLINES_H_
#define ZEPHYR_INCLUDE_ARCH_XTENSA_ARCH_INLINES_H_
 
#ifndef _ASMLANGUAGE
 
#include <kernel_structs.h>
 
#define RSR(sr) \
        ({uint32_t v; \
         __asm__ volatile ("rsr." sr " %0" : "=a"(v)); \
         v; })
 
#define WSR(sr, v) \
        do { \
                __asm__ volatile ("wsr." sr " %0" : : "r"(v)); \
        } while (false)
 
static ALWAYS_INLINE _cpu_t *arch_curr_cpu(void)
{
        _cpu_t *cpu;
 
        cpu = (_cpu_t *)RSR(CONFIG_XTENSA_KERNEL_CPU_PTR_SR);
 
        return cpu;
}
 
#endif /* !_ASMLANGUAGE */
 
#endif /* ZEPHYR_INCLUDE_ARCH_XTENSA_ARCH_INLINES_H_ */