gart_iommu_aperture_disabled 36 arch/x86/include/asm/gart.h extern int gart_iommu_aperture_disabled; gart_iommu_aperture_disabled 53 arch/x86/kernel/aperture_64.c int gart_iommu_aperture_disabled __initdata; gart_iommu_aperture_disabled 396 arch/x86/kernel/aperture_64.c if (gart_iommu_aperture_disabled || !fix_aperture || gart_iommu_aperture_disabled 65 arch/x86/kernel/early-quirks.c gart_iommu_aperture_disabled = 1;