nuttx/arch/arm/include/irq.h
hujun5 ea181e2621 arm: armv7-a/r and armv8-r up_cpu_index inline
reason:
inline small code to improve performance

Signed-off-by: hujun5 <hujun5@xiaomi.com>
2024-09-06 03:44:49 +08:00

144 lines
4.4 KiB
C

/****************************************************************************
* arch/arm/include/irq.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/* This file should never be included directly but, rather, only indirectly
* through nuttx/irq.h
*/
#ifndef __ARCH_ARM_INCLUDE_IRQ_H
#define __ARCH_ARM_INCLUDE_IRQ_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <sys/types.h>
#ifndef __ASSEMBLY__
# include <stdbool.h>
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
/* Include chip-specific IRQ definitions (including IRQ numbers) */
#include <arch/chip/irq.h>
/* Include NuttX-specific IRQ definitions */
#include <nuttx/irq.h>
/* Include ARM architecture-specific IRQ definitions (including register
* save structure and up_irq_save()/up_irq_restore() functions)
*/
#if defined(CONFIG_ARCH_ARMV7A)
# include <arch/armv7-a/irq.h>
#elif defined(CONFIG_ARCH_ARMV7R)
# include <arch/armv7-r/irq.h>
#elif defined(CONFIG_ARCH_ARMV8R)
# include <arch/armv8-r/irq.h>
#elif defined(CONFIG_ARCH_ARMV7M)
# include <arch/armv7-m/irq.h>
#elif defined(CONFIG_ARCH_ARMV8M)
# include <arch/armv8-m/irq.h>
#elif defined(CONFIG_ARCH_ARMV6M)
# include <arch/armv6-m/irq.h>
#else
# include <arch/arm/irq.h>
#endif
/****************************************************************************
* Pre-processor Prototypes
****************************************************************************/
#ifndef __ASSEMBLY__
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Data
****************************************************************************/
/* g_current_regs[] holds a references to the current interrupt level
* register storage structure. It is non-NULL only during interrupt
* processing. Access to g_current_regs[] must be through the macro
* CURRENT_REGS for portability.
*/
/* For the case of architectures with multiple CPUs, then there must be one
* such value for each processor that can receive an interrupt.
*/
EXTERN volatile uint32_t *g_current_regs[CONFIG_SMP_NCPUS];
#define CURRENT_REGS (g_current_regs[up_cpu_index()])
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Inline functions
****************************************************************************/
/****************************************************************************
* Name: up_interrupt_context
*
* Description:
* Return true is we are currently executing in the interrupt
* handler context.
*
****************************************************************************/
noinstrument_function
static inline bool up_interrupt_context(void)
{
#ifdef CONFIG_SMP
irqstate_t flags = up_irq_save();
#endif
bool ret = CURRENT_REGS != NULL;
#ifdef CONFIG_SMP
up_irq_restore(flags);
#endif
return ret;
}
#endif /* __ASSEMBLY__ */
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ARCH_ARM_INCLUDE_IRQ_H */