[AMD Official Use Only - General] CC: Rajneesh > -----Original Message----- > From: Sierra Guiza, Alejandro (Alex) <Alex.Sierra@xxxxxxx> > Sent: Thursday, June 15, 2023 5:55 PM > To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx; Kuehling, Felix <Felix.Kuehling@xxxxxxx> > Cc: Yat Sin, David <David.YatSin@xxxxxxx>; Sierra Guiza, Alejandro (Alex) > <Alex.Sierra@xxxxxxx> > Subject: [PATCH] drm/amdkfd: set coherent host access capability flag > > This flag determines whether the host possesses coherent access to the > memory of the device. > > Signed-off-by: Alex Sierra <alex.sierra@xxxxxxx> > --- > drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c > b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c > index 90b86a6ac7bd..7ede3de4f7fb 100644 > --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c > +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c > @@ -2107,6 +2107,10 @@ int kfd_topology_add_device(struct kfd_node > *gpu) > if (KFD_IS_SVM_API_SUPPORTED(dev->gpu->adev)) > dev->node_props.capability |= > HSA_CAP_SVMAPI_SUPPORTED; > > + if (dev->gpu->adev->gmc.is_app_apu | > + dev->gpu->adev->gmc.xgmi.connected_to_cpu) > + dev->node_props.capability |= > HSA_CAP_FLAGS_COHERENTHOSTACCESS; > + > kfd_debug_print_topology(); > > kfd_notify_gpu_change(gpu_id, 1); > -- > 2.32.0
