XCHAL_NCP_SA_LIST  135 include/asm-xtensa/coprocessor.h typedef struct { XCHAL_NCP_SA_LIST(0) } xtregs_opt_t
XCHAL_NCP_SA_LIST  137 include/asm-xtensa/coprocessor.h typedef struct { XCHAL_NCP_SA_LIST(1) } xtregs_user_t