This is a note to let you know that I've just added the patch titled
drm/amdkfd: fix TLB flush after unmap for GFX9.4.2
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdkfd-fix-tlb-flush-after-unmap-for-gfx9.4.2.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1210e2f1033dc56b666c9f6dfb761a2d3f9f5d6c Mon Sep 17 00:00:00 2001
From: Eric Huang <jinhuieric.huang@xxxxxxx>
Date: Wed, 20 Mar 2024 15:53:47 -0400
Subject: drm/amdkfd: fix TLB flush after unmap for GFX9.4.2
From: Eric Huang <jinhuieric.huang@xxxxxxx>
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@xxxxxxx>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -1466,7 +1466,7 @@ void kfd_flush_tlb(struct kfd_process_de
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);
}
Patches currently in stable-queue which might be from jinhuieric.huang@xxxxxxx are
queue-6.6/drm-amdkfd-fix-tlb-flush-after-unmap-for-gfx9.4.2.patch
