f826e053ae
heap. QEMU had a different ROM image that used the regions of PRO CPU for both CPUs. This was causing crashes when running SMP mode as the heap was being corrupted when the APP CPU starts. QEMU is now loading the same image as the hardware chip and thus this special case doesn't exist anymore. Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
146 lines
4.9 KiB
C
146 lines
4.9 KiB
C
/****************************************************************************
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* arch/xtensa/include/esp32/memory_layout.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* The heap overview:
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*
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* CONFIG_HEAP2_BASE eg. 3f80 0000
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* :
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* : g_mmheap (CONFIG_ESP32_SPIRAM)
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* :
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* CONFIG_HEAP2_BASE + CONFIG_HEAP2_SIZE eg. 3fc0 0000
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*
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* HEAP_REGION0_START 3ffa e6f0
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* :
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* : g_mmheap region0
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* :
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* HEAP_REGION0_END 3ffa fff0
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* :
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* _sheap eg. 3ffc 8c6c
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* :
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* : g_mmheap region1
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* :
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* HEAP_REGION1_END 3ffd fff0
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* :
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* : ROM data
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* :
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*---------------------------------------------------------------------
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* if !CONFIG_SMP
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*
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* HEAP_REGION2_START 3ffe 0450
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* :
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* : g_iheap (CONFIG_XTENSA_IMEM_USE_SEPARATE_HEAP)
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* :
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* HEAP_REGION2_START + CONFIG_XTENSA_IMEM_REGION_SIZE
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* :
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* : g_mmheap region2
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* :
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*---------------------------------------------------------------------
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* if CONFIG_SMP
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*
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* HEAP_REGION2_START 3ffe 0450
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* :
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* : g_mmheap region2
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* :
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* HEAP_REGION2_END 3ffe 3f10
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* :
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* : ROM data
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* :
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* HEAP_REGION3_START 3ffe 5240
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* :
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* : g_iheap (CONFIG_XTENSA_IMEM_USE_SEPARATE_HEAP)
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* :
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* HEAP_REGION3_START + CONFIG_XTENSA_IMEM_REGION_SIZE
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* :
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* : g_mmheap region3
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* :
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*---------------------------------------------------------------------
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* _eheap 4000 0000
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*/
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/* This region is supposed to be part of the ROM data. However, the ROM
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* isn't using the last 6KB, so we get it as heap. It's called REGION0
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* because it starts before _sheap.
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* Although this region is adjacent to 0x3ffb0000 (start of static memory)
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* we don't add it to static memory but we add it as heap. The reason is the
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* Bluetooth controller uses a fixed 64KB region at the start of 0x3ffb0000.
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* It's cleaner, from a source code perspective, to start static memory at
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* 0x3ffb0000 and get what's before that as heap.
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*/
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#define HEAP_REGION0_START 0x3ffae6f0
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#define HEAP_REGION0_END 0x3ffafff0
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/* Region 1 of the heap is the area from the end of the .data section to the
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* beginning of the ROM data. The start address is defined from the linker
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* script as "_sheap". The end is defined here, as follows:
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*/
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#define HEAP_REGION1_END 0x3ffdfff0
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/* Region 2 of the heap is the area from the end of the ROM data to the end
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* of DRAM. The linker script has already set "_eheap" as the end of DRAM,
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* the following defines the start of region2.
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* N.B: That ROM data consists of 2 regions, one per CPU. If SMP is not
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* enabled include APP's region with the heap.
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*
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* When an internal heap is enabled this region starts at an offset equal to
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* the size of the internal heap.
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*/
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#define HEAP_REGION2_START 0x3ffe0450
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#ifdef CONFIG_SMP
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# define HEAP_REGION2_END 0x3ffe3f10
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# define HEAP_REGION3_START 0x3ffe5240
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#endif
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#ifdef CONFIG_XTENSA_IMEM_USE_SEPARATE_HEAP
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# define XTENSA_IMEM_REGION_SIZE CONFIG_XTENSA_IMEM_REGION_SIZE
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#else
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# define XTENSA_IMEM_REGION_SIZE 0
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#endif
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/* Internal heap starts at the end of the ROM data.
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* This is either the start of region2 if SMP is disabled or start of region3
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* if SMP is enabled.
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*/
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#ifndef CONFIG_SMP
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# define ESP32_IMEM_START HEAP_REGION2_START
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#else
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# define ESP32_IMEM_START HEAP_REGION3_START
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#endif
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/* Region of unused ROM App data */
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#define HEAP_REGION_ROMAPP_START 0x3ffe4360
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#define HEAP_REGION_ROMAPP_END 0x3ffe5230
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