diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_chardev.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 519c7b1854b2..5694fbead9a5 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -295,6 +295,13 @@ static int kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p, args->doorbell_offset = KFD_MMAP_TYPE_DOORBELL; args->doorbell_offset |= KFD_MMAP_GPU_ID(args->gpu_id); args->doorbell_offset <<= PAGE_SHIFT; + if (KFD_IS_SOC15(dev->device_info->asic_family)) + /* On SOC15 ASICs, doorbell allocation must be + * per-device, and independent from the per-process + * queue_id. Return the doorbell offset within the + * doorbell aperture to user mode. + */ + args->doorbell_offset |= q_properties.doorbell_off; mutex_unlock(&p->mutex); |