66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/****************************************************************************
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* arch/xtensa/src/common/xtensa_irq.S
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*
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* Adapted from use in NuttX by:
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*
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* Copyright (C) 2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Derives from logic originally provided by Espressif Systems:
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*
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* Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_XTENSA_SRC_COMMON_XTENSA_ATTR_H
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#define __ARCH_XTENSA_SRC_COMMON_XTENSA_ATTR_H
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define ROMFN_ATTR
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/* Normally, the linker script will put all code and rodata in flash,
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* and all variables in shared RAM. These macros can be used to redirect
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* particular functions/variables to other memory regions.
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*/
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/* Forces code into IRAM instead of flash */
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#define IRAM_ATTR __attribute__((section(".iram1")))
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/* Forces data into DRAM instead of flash */
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#define DRAM_ATTR __attribute__((section(".dram1")))
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/* Forces code into RTC fast memory */
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#define RTC_IRAM_ATTR __attribute__((section(".rtc.text")))
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/* Forces data into RTC slow memory
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* Any variable marked with this attribute will keep its value
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* during a deep sleep / wake cycle. */
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#define RTC_DATA_ATTR __attribute__((section(".rtc.data")))
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/* Forces read-only data into RTC slow memory
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* Makes constant data available to RTC wake stubs.
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*/
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#define RTC_RODATA_ATTR __attribute__((section(".rtc.rodata")))
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#endif /* __ARCH_XTENSA_SRC_COMMON_XTENSA_ATTR_H */
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