drm/amdgpu: Send no-retry XNACK for all fault types

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A subset of VM fault types currently send retry XNACK to the client.
This causes a storm of interrupts from the VM to the host.

Until the storm is throttled by other means send no-retry XNACK for
all fault types instead. No change in behavior to the client which
will stall indefinitely with the current configuration in any case.
Improves system stability under GC or MMHUB faults.

Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: John Bridgman <John.Bridgman@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Jay Cornwall 2017-04-26 14:51:57 -05:00 • committed by Alex Deucher

parent ba997709a6

commit 9f57f7b47d

2 changed files with 6 additions and 0 deletions

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3

drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c

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3

drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c

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