Commit 126bbd4a authored by Alex Sierra's avatar Alex Sierra Committed by Alex Deucher

drm/amdgpu: extend xnack limit page fault timeout

Extending this timeout will prevent IH from storm interrupts coming
from SDMA while a page fault is active. Currently, on Aldebaran,
handling that many interrupts can take a lot of CPU time
(up to 4 seconds).
This eventually causes timeouts in other tasks.
Signed-off-by: default avatarAlex Sierra <alex.sierra@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 502f0e28
......@@ -1109,6 +1109,8 @@ static void sdma_v4_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
if (adev->asic_type == CHIP_ARCTURUS &&
adev->sdma.instance[i].fw_version >= 14)
WREG32_SDMA(i, mmSDMA0_PUB_DUMMY_REG2, enable);
/* Extend page fault timeout to avoid interrupt storm */
WREG32_SDMA(i, mmSDMA0_UTCL1_TIMEOUT, 0x00800080);
}
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment