[PATCH 2/4] drm/amdkfd: Add heavy-weight TLB flush after unmapping

[Eric Huang]

It is a part of memory mapping optimization.

Signed-off-by: Eric Huang <jinhuieric.huang at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 4da8aff3df27..98f1d2b586c5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1766,6 +1766,7 @@ static int kfd_ioctl_unmap_memory_from_gpu(struct file *filep,
 			amdgpu_read_unlock(peer->ddev);
 			goto unmap_memory_from_gpu_failed;
 		}
+		kfd_flush_tlb(peer_pdd, TLB_FLUSH_HEAVYWEIGHT);
 		amdgpu_read_unlock(peer->ddev);
 		args->n_success = i+1;
 	}
-- 
2.25.1