[PATCH] drm/amdkfd: enable heavy-weight TLB flush on Vega20

[Eric Huang]

It is to meet the requirement for memory allocation
optimization on MI50.

Signed-off-by: Eric Huang <jinhuieric.hu...@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 5b8ae0795c0a..d708f1a502cf 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1582,7 +1582,8 @@ static int kfd_ioctl_free_memory_of_gpu(struct file 
*filep,
 static bool kfd_flush_tlb_after_unmap(struct kfd_dev *dev) {
        return KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2) ||
               (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 1) &&
-               dev->adev->sdma.instance[0].fw_version >= 18);
+               dev->adev->sdma.instance[0].fw_version >= 18) ||
+               KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 0);
 }
 
 static int kfd_ioctl_map_memory_to_gpu(struct file *filep,
-- 
2.25.1