HWS uses bit 7 in the queue number of the map process packet for an undocumented feature. Therefore the queue number per process and device must be 127 or less.
Signed-off-by: Felix Kuehling <[email protected]> --- drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c index 88ad178..5129dc1 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c @@ -150,6 +150,7 @@ int pqm_create_queue(struct process_queue_manager *pqm, struct process_queue_node *pqn; struct kernel_queue *kq; enum kfd_queue_type type = properties->type; + unsigned int max_queues = 127; /* HWS limit */ q = NULL; kq = NULL; @@ -166,10 +167,11 @@ int pqm_create_queue(struct process_queue_manager *pqm, * If we are just about to create DIQ, the is_debug flag is not set yet * Hence we also check the type as well */ - if ((pdd->qpd.is_debug) || (type == KFD_QUEUE_TYPE_DIQ)) { - if (pdd->qpd.queue_count >= dev->device_info->max_no_of_hqd/2) - return -ENOSPC; - } + if ((pdd->qpd.is_debug) || (type == KFD_QUEUE_TYPE_DIQ)) + max_queues = dev->device_info->max_no_of_hqd/2; + + if (pdd->qpd.queue_count >= max_queues) + return -ENOSPC; retval = find_available_queue_slot(pqm, qid); if (retval != 0) -- 2.7.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
