amdkfd: Add binding/unbinding calls to amd_iommu driver

This patch adds the functions to bind and unbind pasid
from a device through the amd_iommu driver.

The unbind function is called when the mm_struct of the
process is released.

The bind function is not called here because it is called
only in the IOCTLs which are not yet implemented at this
stage of the patchset.

Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 77d15dbebb0c..431a09bbab62 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -194,6 +194,7 @@ void kfd_process_destroy_wq(void);
 struct kfd_process *kfd_create_process(const struct task_struct *);
 struct kfd_process *kfd_get_process(const struct task_struct *);
 
+void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid);
 struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev,
 							struct kfd_process *p,
 							int create_pdd);