From 515d7cebc2e2d2b4f0a276d26f3b790a83cdfe06 Mon Sep 17 00:00:00 2001
From: Lang Yu <Lang.Yu@amd.com>
Date: Wed, 20 Apr 2022 10:24:31 +0800
Subject: [PATCH] Revert "drm/amdkfd: only allow heavy-weight TLB flush on some
 ASICs for SVM too"

This reverts commit 36bf93216ecbe399c40c5e0486f0f0e3a4afa69e.

It causes SVM regressions on Vega10 with XNACK-ON. Just revert it
at the moment.

./kfdtest --gtest_filter=KFDSVMRangeTest.MigratePolicyTest

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 5afe216cf0990..459fa07a3bcc8 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -1229,9 +1229,7 @@ svm_range_unmap_from_gpus(struct svm_range *prange, unsigned long start,
 			if (r)
 				break;
 		}
-
-		if (kfd_flush_tlb_after_unmap(pdd->dev))
-			kfd_flush_tlb(pdd, TLB_FLUSH_HEAVYWEIGHT);
+		kfd_flush_tlb(pdd, TLB_FLUSH_HEAVYWEIGHT);
 	}
 
 	return r;