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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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19 lines
435 B
C
19 lines
435 B
C
#include <linux/init.h>
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#include <linux/string.h>
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#include <asm/addrspace.h>
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#include <asm/bootinfo.h>
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void __init prom_init(void)
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{
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int *cmdline;
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cmdline = (int *) (CKSEG0 + (0x10 << 20) - 260);
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if (*cmdline == 0x12345678) {
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if (*(char *)(cmdline + 1))
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strcpy(arcs_cmdline, (char *)(cmdline + 1));
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add_memory_region(0x0<<20, cmdline[-1], BOOT_MEM_RAM);
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} else {
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add_memory_region(0x0<<20, 0x10<<20, BOOT_MEM_RAM);
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}
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}
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