HelenOS sources

CLIDR_LOUIS_SHIFT  204 boot/arch/arm32/include/arch/cp15.h 	CLIDR_LOUIS_SHIFT = 21,
CLIDR_LOUIS_SHIFT  204 kernel/arch/arm32/include/arch/cp15.h 	CLIDR_LOUIS_SHIFT = 21,
CLIDR_LOUIS_SHIFT  204 uspace/lib/c/arch/arm32/include/libarch/cp15.h 	CLIDR_LOUIS_SHIFT = 21,
HelenOS homepage, sources at GitHub