drm/amdkfd: fix TLB flush after unmap for GFX9.4.2

commit 1210e2f1033dc56b666c9f6dfb761a2d3f9f5d6c upstream.

TLB flush after unmap accidentially was removed on
gfx9.4.2. It is to add it back.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index ec8a576ac5a9e1191a8bd68aa013cfda2add4d8b..3c7d267f2a07bb0ef43a4a416552753e3c40f5bb 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -1349,7 +1349,7 @@ void kfd_flush_tlb(struct kfd_process_device *pdd, enum TLB_FLUSH_TYPE type);
 
 static inline bool kfd_flush_tlb_after_unmap(struct kfd_dev *dev)
 {
-       return KFD_GC_VERSION(dev) > IP_VERSION(9, 4, 2) ||
+       return KFD_GC_VERSION(dev) >= IP_VERSION(9, 4, 2) ||
               (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 1) && dev->sdma_fw_version >= 18) ||
               KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 0);
 }