dram_hole_base 664 arch/x86/kernel/cpu/mce/amd.c u64 dram_base_addr, dram_limit_addr, dram_hole_base; dram_hole_base 831 arch/x86/kernel/cpu/mce/amd.c dram_hole_base = tmp & GENMASK(31, 24); dram_hole_base 832 arch/x86/kernel/cpu/mce/amd.c if (ret_addr >= dram_hole_base) dram_hole_base 833 arch/x86/kernel/cpu/mce/amd.c ret_addr += (BIT_ULL(32) - dram_hole_base);