HelenOS sources

PMCR_E_FLAG       573 boot/arch/arm32/include/arch/cp15.h 	PMCR_E_FLAG = 1 << 0,
PMCR_E_FLAG       573 kernel/arch/arm32/include/arch/cp15.h 	PMCR_E_FLAG = 1 << 0,
PMCR_E_FLAG       573 uspace/lib/c/arch/arm32/include/libarch/cp15.h 	PMCR_E_FLAG = 1 << 0,
HelenOS homepage, sources at GitHub