This is a note to let you know that I've just added the patch titled
drm/amdkfd: Initialize sdma vm when creating sdma queue
to the 4.0-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-initialize-sdma-vm-when-creating-sdma-queue.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 79b066bd76d501cfe8328142153da301f5ca11d1 Mon Sep 17 00:00:00 2001
From: Xihan Zhang <xihan.zhang@xxxxxxx>
Date: Tue, 28 Apr 2015 23:48:40 +0800
Subject: drm/amdkfd: Initialize sdma vm when creating sdma queue
From: Xihan Zhang <xihan.zhang@xxxxxxx>
commit 79b066bd76d501cfe8328142153da301f5ca11d1 upstream.
This patch fixes a bug where sdma vm wasn't initialized when
an sdma queue was created in HWS mode.
This caused GPUVM faults to appear on dmesg and it is one of the
causes that SDMA queues are not working.
Signed-off-by: Xihan Zhang <xihan.zhang@xxxxxxx>
Reviewed-by: Ben Goz <ben.goz@xxxxxxxx>
Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -879,6 +879,8 @@ static int create_queue_cpsch(struct dev
return -ENOMEM;
}
+ init_sdma_vm(dqm, q, qpd);
+
retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
&q->gart_mqd_addr, &q->properties);
if (retval != 0)
Patches currently in stable-queue which might be from xihan.zhang@xxxxxxx are
queue-4.0/drm-amdkfd-initialize-sdma-vm-when-creating-sdma-queue.patch
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