Revert "drm/amdkfd: Add heavy-weight TLB flush after unmapping"

This reverts commit 1098d658bef05e5fee634aab0b6a1fa590cfca24.

Reason for revert: it causes regressions on several Asics.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 84894cd..e48acdd 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1563,7 +1563,6 @@ static int kfd_ioctl_unmap_memory_from_gpu(struct file *filep,
                               i, args->n_devices);
                        goto unmap_memory_from_gpu_failed;
                }
-               kfd_flush_tlb(peer_pdd, TLB_FLUSH_HEAVYWEIGHT);
                args->n_success = i+1;
        }
        kfree(devices_arr);