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goldfish:add kernel mode support

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Signed-off-by: wanggang26 <wanggang26@xiaomi.com>
This commit is contained in:
wanggang26 2024-04-08 15:32:47 +08:00 committed by Xiang Xiao
parent 02287a2976
commit a6c3de6e89
2 changed files with 77 additions and 0 deletions
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1
arch/arm/src/goldfish/Make.defs
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@ -22,4 +22,5 @@ include armv7-a/Make.defs
# goldfish-specific C source files
CHIP_CSRCS = goldfish_boot.c goldfish_serial.c goldfish_irq.c goldfish_timer.c goldfish_memorymap.c
CHIP_CSRCS += goldfish_pgalloc.c

76
arch/arm/src/goldfish/goldfish_pgalloc.c Normal file
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@ -0,0 +1,76 @@
/****************************************************************************
* arch/arm/src/goldfish/goldfish_pgalloc.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/arch.h>
#include <nuttx/config.h>
#include <assert.h>
#include <debug.h>
#ifdef CONFIG_MM_PGALLOC
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Currently, page cache memory must be allocated in DRAM. There are other
* possibilities, but the logic in this file will have to extended in order
* handle any other possibility.
*/
#ifndef CONFIG_ARCH_PGPOOL_MAPPING
# error CONFIG_ARCH_PGPOOL_MAPPING must be selected
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_allocate_pgheap
*
* Description:
* If there is a page allocator in the configuration, then this function
* must be provided by the platform-specific code. The OS initialization
* logic will call this function early in the initialization sequence to
* get the page heap information needed to configure the page allocator.
*
* Input parameters:
* heap_start - A double pointer to the start address of the pgheap
* heap_size - A pointer to the size of the pgheap
*
* Returned Value:
* None
*
****************************************************************************/
void up_allocate_pgheap(void **heap_start, size_t *heap_size)
{
DEBUGASSERT(heap_start && heap_size);
*heap_start = (void *)CONFIG_ARCH_PGPOOL_PBASE;
*heap_size = (size_t)CONFIG_ARCH_PGPOOL_SIZE;
}
#endif /* CONFIG_MM_PGALLOC */