63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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/*
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* Copyright (c) 2022 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Driver handling memory regions related
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* functions
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*/
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#include "mm_drv_intel_adsp.h"
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struct sys_mm_drv_region
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virtual_memory_regions[CONFIG_MP_MAX_NUM_CPUS + VIRTUAL_REGION_COUNT] = { {0} };
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const struct sys_mm_drv_region *sys_mm_drv_query_memory_regions(void)
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{
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return (const struct sys_mm_drv_region *) virtual_memory_regions;
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}
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static inline void append_region(void *address, uint32_t mem_size,
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uint32_t attributes, uint32_t position, uint32_t *checksum)
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{
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virtual_memory_regions[position].addr = address;
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virtual_memory_regions[position].size = mem_size;
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virtual_memory_regions[position].attr = attributes;
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checksum += mem_size;
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}
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int calculate_memory_regions(uintptr_t static_alloc_end_ptr)
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{
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struct sys_mm_drv_region *temporary_table =
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(struct sys_mm_drv_region *)&virtual_memory_regions[0];
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int i, checksum = 0;
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for (i = 0; i < CONFIG_MP_MAX_NUM_CPUS; i++) {
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append_region((void *)(static_alloc_end_ptr + i * CORE_HEAP_SIZE),
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CORE_HEAP_SIZE, MEM_REG_ATTR_CORE_HEAP, i, &checksum);
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}
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append_region((void *)((uintptr_t)
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virtual_memory_regions[i - 1].addr + temporary_table[i - 1].size),
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CORE_HEAP_SIZE, MEM_REG_ATTR_SHARED_HEAP, i, &checksum);
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i++;
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append_region((void *)((uintptr_t)
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virtual_memory_regions[i - 1].addr + temporary_table[i - 1].size),
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OPPORTUNISTIC_REGION_SIZE, MEM_REG_ATTR_OPPORTUNISTIC_MEMORY, i, &checksum);
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i++;
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/* Apending last region as 0 so iterators know where table is over
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* check is for size = 0;
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*/
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append_region((void *)0, 0, 0, i, &checksum);
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if (checksum > L2_VIRTUAL_SRAM_SIZE) {
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return -EINVAL;
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}
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return 0;
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}
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