SR_USER
mtsp(context.space_id, SR_USER);
__put_user_internal(SR_USER, __x, __ptr); \
__gu_err = __get_user_internal(SR_USER, val, ptr); \
__probe_user_internal(SR_USER, __gu_err, ptr); \
space = mfsp(SR_USER);
mtsp(space, SR_USER);
: "r" (end), "r" (dcache_stride), "i" (SR_USER));
: "r" (end), "r" (icache_stride), "i" (SR_USER));
#define get_user_space() mfsp(SR_USER)