From baed5afa541af524b49c20f4643d09b2f33111a0 Mon Sep 17 00:00:00 2001
From: Eric Huang <JinhuiEric.Huang@amd.com>
Date: Mon, 26 Jul 2021 11:21:14 -0400
Subject: Revert "Revert "drm/amdkfd: Add heavy-weight TLB flush after
unmapping""
Git-commit: f87534347a5dd9c5860f947f6402c2dee45de2fd
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
This reverts commit 430f8e6edbaac8abfddf76f1aef732d9c6257211.
Revert reason: Issue has been resolved.
Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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 e48acdd03c1a..84894cd81ced 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);
--
2.38.1