On Mon, Mar 24, 2025 at 1:26 PM Eric Huang <jinhuieric.hu...@amd.com> wrote: > > kfdtest KFDQMTest.OverSubscribeCpQueues with multiple > gpu mode fails on gfx v9.4.3+NPS4+CPX which has 64 gpu > nodes, the queues created are 65x64=4160, but the number > 1024 0f KFD_MAX_NUM_OF_QUEUES_PER_PROCESS is not enough > and test fails at function find_available_queue_slot(). > So increasing the nubmer will make the test passed. > > Signed-off-by: Eric Huang <jinhuieric.hu...@amd.com> > --- > drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h > b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h > index f6aedf69c644..054a78207ffe 100644 > --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h > +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h > @@ -94,7 +94,7 @@ > ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL)) > > #define KFD_MAX_NUM_OF_PROCESSES 512 > -#define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 > +#define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 4160
Doesn't this limit have more to do with the number of doorbells you can fit into a 4K page? If you only allocate 4K for doorbells how can you increase this? Alex > > /* > * Size of the per-process TBA+TMA buffer: 2 pages > -- > 2.34.1 >
