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arch/intel64: convert __nxstart to C function and move appropriate fu…
…nctions there to follow the approach in other architectures Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| /**************************************************************************** | ||
| * arch/x86_64/src/intel64/intel64_start.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. | ||
| * | ||
| ****************************************************************************/ | ||
|
|
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| /**************************************************************************** | ||
| * Included Files | ||
| ****************************************************************************/ | ||
|
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| #include <nuttx/config.h> | ||
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| #include <nuttx/init.h> | ||
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| #include <arch/board/board.h> | ||
| #include <arch/multiboot2.h> | ||
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| #include "x86_64_internal.h" | ||
| #include "intel64.h" | ||
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| /**************************************************************************** | ||
| * Public Data | ||
| ****************************************************************************/ | ||
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| /* This holds information passed by the multiboot2 bootloader */ | ||
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| uint32_t mb_magic __attribute__((section(".loader.bss"))); | ||
| uint32_t mb_info_struct __attribute__((section(".loader.bss"))); | ||
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| /**************************************************************************** | ||
| * Private Functions | ||
| ****************************************************************************/ | ||
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| #ifdef CONFIG_ARCH_MULTIBOOT2 | ||
| /**************************************************************************** | ||
| * Name: x86_64_mb2_config | ||
| * | ||
| * Description: | ||
| * Parse multiboot2 info. | ||
| * | ||
| ****************************************************************************/ | ||
|
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| static void x86_64_mb2_config(void) | ||
| { | ||
| struct multiboot_tag *tag; | ||
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| /* Check that we were actually booted by a multiboot2 bootloader */ | ||
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| if (mb_magic != MULTIBOOT2_BOOTLOADER_MAGIC) | ||
| { | ||
| return; | ||
| } | ||
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| for (tag = (struct multiboot_tag *)(uintptr_t)(mb_info_struct + 8); | ||
| tag->type != MULTIBOOT_TAG_TYPE_END; | ||
| tag = (struct multiboot_tag *)((uint8_t *)tag + | ||
| ((tag->size + 7) & ~7))) | ||
| { | ||
| switch (tag->type) | ||
| { | ||
| case MULTIBOOT_TAG_TYPE_EFI64: | ||
| { | ||
| break; | ||
| } | ||
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| #ifdef CONFIG_MULTBOOT2_FB_TERM | ||
| case MULTIBOOT_TAG_TYPE_FRAMEBUFFER: | ||
| { | ||
| x86_64_mb2_fbinitialize( | ||
| (struct multiboot_tag_framebuffer *)tag); | ||
| break; | ||
| } | ||
| #endif | ||
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| default: | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| #endif | ||
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| /**************************************************************************** | ||
| * Public Functions | ||
| ****************************************************************************/ | ||
|
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| /**************************************************************************** | ||
| * Name: __nxstart | ||
| * | ||
| * Description: | ||
| * Do low-level initialization and call nx_start. | ||
| * | ||
| ****************************************************************************/ | ||
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| void __nxstart(void) | ||
| { | ||
| /* Low-level, pre-OS initialization */ | ||
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| intel64_lowsetup(); | ||
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| #ifdef CONFIG_ARCH_MULTIBOOT2 | ||
| /* Handle multiboot2 info */ | ||
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| x86_64_mb2_config(); | ||
| #endif | ||
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| /* perform board-specific initializations */ | ||
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| x86_64_boardinitialize(); | ||
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| #ifdef USE_EARLYSERIALINIT | ||
| /* Early serial driver initialization */ | ||
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| x86_64_earlyserialinit(); | ||
| #endif | ||
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| x86_64_timer_calibrate_freq(); | ||
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| #ifdef CONFIG_LIB_SYSCALL | ||
| enable_syscall(); | ||
| #endif | ||
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| /* Start NuttX */ | ||
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| nx_start(); | ||
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| /* Shouldn't get here */ | ||
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| for (; ; ); | ||
| } |