dart 46 arch/powerpc/sysdev/dart.h #define DART_REG(r) (dart + ((r) >> 2)) dart 43 arch/powerpc/sysdev/dart_iommu.c static unsigned int __iomem *dart; dart 289 arch/powerpc/sysdev/dart_iommu.c dart = ioremap(r.start, resource_size(&r)); dart 290 arch/powerpc/sysdev/dart_iommu.c if (dart == NULL)