CBAR 22 arch/x86/include/asm/rio.h u32 CBAR; /* Address of 1MB register space */ CBAR 110 arch/x86/kernel/cpu/amd.c if (inl(CBAR) & CBAR_ENB) CBAR 111 arch/x86/kernel/cpu/amd.c outl(0 | CBAR_KEY, CBAR);