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.jo...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 856c50386c86..c764c27ba86d 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -1063,6 +1063,16 @@ 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 > 13)) {
+ WREG32_SDMA(i, mmSDMA0_PUB_DUMMY_REG2, enable);
+ }
}
}
--
2.17.1
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