This is a note to let you know that I've just added the patch titled
drm/amdkfd: Use gpu_offset for user queue's wptr
to the 6.5-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-use-gpu_offset-for-user-queue-s-wptr.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From cc39f9ccb82426e576734b493e1777ea01b144a8 Mon Sep 17 00:00:00 2001
From: YuBiao Wang <YuBiao.Wang@xxxxxxx>
Date: Fri, 15 Sep 2023 10:47:50 +0800
Subject: drm/amdkfd: Use gpu_offset for user queue's wptr
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: YuBiao Wang <YuBiao.Wang@xxxxxxx>
commit cc39f9ccb82426e576734b493e1777ea01b144a8 upstream.
Directly use tbo's start address will miss the domain start offset. Need
to use gpu_offset instead.
Signed-off-by: YuBiao Wang <YuBiao.Wang@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@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_device_queue_manager.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -216,7 +216,7 @@ static int add_queue_mes(struct device_q
if (q->wptr_bo) {
wptr_addr_off = (uint64_t)q->properties.write_ptr & (PAGE_SIZE - 1);
- queue_input.wptr_mc_addr = ((uint64_t)q->wptr_bo->tbo.resource->start << PAGE_SHIFT) + wptr_addr_off;
+ queue_input.wptr_mc_addr = amdgpu_bo_gpu_offset(q->wptr_bo) + wptr_addr_off;
}
queue_input.is_kfd_process = 1;
Patches currently in stable-queue which might be from YuBiao.Wang@xxxxxxx are
queue-6.5/drm-amdkfd-use-gpu_offset-for-user-queue-s-wptr.patch
