From: Mukul Joshi <mukul.joshi@amd.com>
To: amd-gfx@lists.freedesktop.org
Cc: Mukul Joshi <mukul.joshi@amd.com>, Felix.Kuehling@amd.com
Subject: [PATCH v2] drm/amdgpu: Enable SDMA utilization for Arcturus
Date: Fri, 11 Sep 2020 17:33:57 -0400 [thread overview]
Message-ID: <20200911213357.17366-1-mukul.joshi@amd.com> (raw)
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>
---
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 9 +++++++++
1 file changed, 9 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..edea8743f26e 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -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);
}
}
--
2.17.1
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next reply other threads:[~2020-09-11 21:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-11 21:33 Mukul Joshi [this message]
2020-09-11 22:33 ` [PATCH v2] drm/amdgpu: Enable SDMA utilization for Arcturus Felix Kuehling
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