[PATCH] drm/amdkfd: start_cpsch don't map queues

[Michel Dänzer]

On 7/25/23 19:06, Michel Dänzer wrote:
> On 7/24/23 19:52, Philip Yang wrote:
>> start_cpsch map queues when kfd_init_node have race condition with
>> IOMMUv2 init, and cause the gfx ring test failed later. Remove it
>> from start_cpsch because map queues will be done when creating queues
>> and resume queues.
>>
>> Reported-by: Michel Dänzer <michel at daenzer.net>
>> Signed-off-by: Philip Yang <Philip.Yang at amd.com>
>  
> This patch doesn't help for any of the symptoms I've described I'm afraid.

Actually, I failed to check one thing before:

The patch fixed both IOMMU page faults. The IB tests on the compute rings still failed though.

Interestingly, with iommu=pt there was still one IOMMU page fault, even with this patch:

 amdgpu 0000:05:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x14105a380 flags=0x0070]


-- 
Earthling Michel Dänzer            |                  https://redhat.com
Libre software enthusiast          |         Mesa and Xwayland developer