int do_nmi(cmd_tbl_t * cmdtp, int flag, int argc, char *const argv[])
{
cvmx_coremask_t coremask = CVMX_COREMASK_EMPTY;
uint64_t cores;
int node;
if (argc > 1) {
if (cvmx_coremask_str2bmp(&coremask, argv[1])) {
puts("Error: could not parse coremask string\n");
return -1;
}
} else {
cvmx_coremask_set_self(&coremask);
}
if (octeon_has_feature(OCTEON_FEATURE_MULTINODE)) {
for (node = CVMX_MAX_NODES - 1; node >= 0; node--) {
cores = cvmx_coremask_get64_node(&coremask, node);
cvmx_write_csr_node(node, CVMX_CIU3_NMI, cores);
}
} else {
cores = cvmx_coremask_get64(&coremask);
if (octeon_has_feature(OCTEON_FEATURE_CIU3))
cvmx_write_csr(CVMX_CIU3_NMI, cores);
else
cvmx_write_csr(CVMX_CIU_NMI, cores);
}
return 0;
}
/**
* Wait (stall) until all cores in the given coremask has reached this point
* in the program execution before proceeding.
*
* @param coremask the group of cores performing the barrier sync
*
*/
void cvmx_coremask_barrier_sync(const cvmx_coremask_t *pcm)
{
int i;
unsigned int target;
#ifndef CVMX_BUILD_FOR_LINUX_KERNEL
assert(pcm != NULL && !((long)pcm & 3));
#endif
cvmx_spinlock_lock(&state.lock);
for (i = 0; i < CVMX_COREMASK_MAX_SYNCS; i++) {
if (cvmx_coremask_is_empty(&state.s[i].coremask)) {
/* end of existing coremask list, create new entry, fall-thru */
cvmx_coremask_copy(&state.s[i].coremask, pcm);
}
if (cvmx_coremask_cmp(&state.s[i].coremask, pcm) == 0) {
target = state.s[i].exit + 1; /* wrap-around at 32b */
cvmx_coremask_set_self(&state.s[i].checkin);
if (cvmx_coremask_cmp(&state.s[i].checkin, pcm) == 0) {
cvmx_coremask_clear_all(&state.s[i].checkin);
state.s[i].exit = target; /* signal exit condition */
}
cvmx_spinlock_unlock(&state.lock);
while (state.s[i].exit != target) ;
return;
}
}
/* error condition - coremask array overflowed */
cvmx_spinlock_unlock(&state.lock);
#ifndef CVMX_BUILD_FOR_LINUX_KERNEL
assert(0);
#endif
}
