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authorEric Huang <[email protected]>2021-06-01 18:26:07 -0400
committerAlex Deucher <[email protected]>2021-06-04 12:40:00 -0400
commit1098d658bef05e5fee634aab0b6a1fa590cfca24 (patch)
treee0f75c54f03133d5d5b53f6409eeda5365490607
parent3543b055b8c7a910847bc23fab816afbf04197e2 (diff)
drm/amdkfd: Add heavy-weight TLB flush after unmapping
It is a part of memory mapping optimization. Signed-off-by: Eric Huang <[email protected]> Reviewed-by: Felix Kuehling <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_chardev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index e86422460c07..e88f63819c15 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1563,6 +1563,7 @@ 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);