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Viewing changes to roms/openbios/arch/amd64/sys_info.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/openbios/arch/amd64/sys_info.c
 
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#include "config.h"
 
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#include "kernel/kernel.h"
 
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#include "libopenbios/sys_info.h"
 
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#include "context.h"
 
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#define printf printk
 
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#ifdef CONFIG_DEBUG_BOOT
 
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#define debug printk
 
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#else
 
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#define debug(x...)
 
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#endif
 
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void collect_multiboot_info(struct sys_info *);
 
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void collect_sys_info(struct sys_info *info);
 
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void collect_sys_info(struct sys_info *info)
 
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{
 
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    int i;
 
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    unsigned long long total = 0;
 
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    struct memrange *mmap;
 
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    /* Pick up parameters given by bootloader to us */
 
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    info->boot_type = boot_ctx->eax;
 
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    info->boot_data = boot_ctx->ebx;
 
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    info->boot_arg = boot_ctx->param[0];
 
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    debug("boot eax = %#lx\n", info->boot_type);
 
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    debug("boot ebx = %#lx\n", info->boot_data);
 
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    debug("boot arg = %#lx\n", info->boot_arg);
 
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    collect_elfboot_info(info);
 
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#ifdef CONFIG_LINUXBIOS
 
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    collect_linuxbios_info(info);
 
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#endif
 
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#ifdef CONFIG_IMAGE_ELF_MULTIBOOT
 
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    collect_multiboot_info(info);
 
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#endif
 
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    if (!info->memrange) {
 
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        printf("Can't get memory map from firmware. "
 
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                "Using hardcoded default.\n");
 
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        info->n_memranges = 2;
 
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        info->memrange = malloc(2 * sizeof(struct memrange));
 
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        info->memrange[0].base = 0;
 
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        info->memrange[0].size = 640*1024;
 
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        info->memrange[1].base = 1024*1024;
 
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        info->memrange[1].size = 32*1024*1024
 
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            - info->memrange[1].base;
 
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    }
 
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    debug("\n");
 
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    mmap=info->memrange;
 
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    for (i = 0; i < info->n_memranges; i++) {
 
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        debug("%016Lx-", mmap[i].base);
 
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        debug("%016Lx\n", mmap[i].base+mmap[i].size);
 
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        total += mmap[i].size;
 
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    }
 
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    debug("RAM %Ld MB\n", (total + 512*1024) >> 20);
 
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}