[v1] drm/amdkfd: Fix unaligned doorbell absolute offset for gfx8

[PATCH 0/1] drm/amdkfd: Fix unaligned doorbell absolute offset for gfx8

Arvind Yadav posted 1 patch 2 years, 4 months ago

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drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

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[PATCH 0/1] drm/amdkfd: Fix unaligned doorbell absolute offset for gfx8

Posted by Arvind Yadav 2 years, 4 months ago

On older chips, the absolute doorbell offset within 
the doorbell page is based on the queue ID.
KFD is using queue ID and doorbell size to get an
absolute doorbell offset in userspace.

This patch is to adjust the absolute doorbell offset
against the doorbell id considering the doorbell
size of 32/64 bit. 

Arvind Yadav (1):
  drm/amdkfd: Fix unaligned doorbell absolute offset for gfx8

 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

-- 
2.34.1

Re: [PATCH 0/1] drm/amdkfd: Fix unaligned doorbell absolute offset for gfx8

Posted by Yadav, Arvind 2 years, 4 months ago

Adding Felix.Kuehling@amd.com for review.

Thanks
~Arvind

On 9/27/2023 9:46 PM, Arvind Yadav wrote:
> On older chips, the absolute doorbell offset within
> the doorbell page is based on the queue ID.
> KFD is using queue ID and doorbell size to get an
> absolute doorbell offset in userspace.
>
> This patch is to adjust the absolute doorbell offset
> against the doorbell id considering the doorbell
> size of 32/64 bit.
>
> Arvind Yadav (1):
>    drm/amdkfd: Fix unaligned doorbell absolute offset for gfx8
>
>   drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 11 ++++++++++-
>   1 file changed, 10 insertions(+), 1 deletion(-)
>