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| /openbmc/linux/drivers/gpu/drm/amd/amdgpu/ |
| H A D | navi10_ih.c | 9e94ff33 Mon Mar 23 14:00:43 CDT 2020 Alex Sierra <alex.sierra@amd.com> drm/amdgpu: reroute VMC and UMD to IH ring 1 for oss v5
[Why]
Due Page faults can easily overwhelm the interrupt handler.
So to make sure that we never lose valuable interrupts on the primary ring
we re-route page faults to IH ring 1.
It also facilitates the recovery page process, since it's already
running from a process context.
This is valid for Arcturus and future Navi generation GPUs.
[How]
Setting IH_CLIENT_CFG_DATA for VMC and UMD IH clients.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9e94ff33 Mon Mar 23 14:00:43 CDT 2020 Alex Sierra <alex.sierra@amd.com> drm/amdgpu: reroute VMC and UMD to IH ring 1 for oss v5
[Why]
Due Page faults can easily overwhelm the interrupt handler.
So to make sure that we never lose valuable interrupts on the primary ring
we re-route page faults to IH ring 1.
It also facilitates the recovery page process, since it's already
running from a process context.
This is valid for Arcturus and future Navi generation GPUs.
[How]
Setting IH_CLIENT_CFG_DATA for VMC and UMD IH clients.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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