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drm/amdgpu: Enable SDMA utilization for Arcturus 

SDMA utilization calculations are enabled/disabled by
writing to SDMAx_PUB_DUMMY_REG2 register. Currently,
enable this only for Arcturus.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mukul Joshi 2020-09-11 17:24:14 -04:00 committed by Alex Deucher
parent 6d90a208cf
commit 62f6b1162e
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
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@ -1063,6 +1063,15 @@ static void sdma_v4_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
WREG32_SDMA(i, mmSDMA0_PHASE2_QUANTUM, phase_quantum);
}
WREG32_SDMA(i, mmSDMA0_CNTL, f32_cntl);
/*
* Enable SDMA utilization. Its only supported on
* Arcturus for the moment and firmware version 14
* and above.
*/
if (adev->asic_type == CHIP_ARCTURUS &&
adev->sdma.instance[i].fw_version >= 14)
WREG32_SDMA(i, mmSDMA0_PUB_DUMMY_REG2, enable);
}
}