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[AMD Public Use]<br>
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Acked-by: Alex Deucher <alexander.deucher@amd.com><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Jack Zhang <Jack.Zhang1@amd.com><br>
<b>Sent:</b> Wednesday, April 8, 2020 6:33 AM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org><br>
<b>Cc:</b> Zhang, Jack (Jian) <Jack.Zhang1@amd.com><br>
<b>Subject:</b> [PATCH] drm/amdgpu/sriov move program of sq_config to PF</font>
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<div class="PlainText">Since SQ_CONFIG will influence performance behavior, it's<br>
unsafe to program in VF. Therefore, program of SQ_CONFIG<br>
need to be moved to PF under siov. Skip it here in guest driver.<br>
<br>
Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com><br>
---<br>
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 3 ++-<br>
1 file changed, 2 insertions(+), 1 deletion(-)<br>
<br>
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c<br>
index 2d56b067..9bb89f2 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c<br>
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c<br>
@@ -2575,7 +2575,8 @@ static void gfx_v9_0_constants_init(struct amdgpu_device *adev)<br>
<br>
gfx_v9_0_init_compute_vmid(adev);<br>
gfx_v9_0_init_gds_vmid(adev);<br>
- gfx_v9_0_init_sq_config(adev);<br>
+ if (!amdgpu_sriov_vf(adev))<br>
+ gfx_v9_0_init_sq_config(adev);<br>
}<br>
<br>
static void gfx_v9_0_wait_for_rlc_serdes(struct amdgpu_device *adev)<br>
-- <br>
2.7.4<br>
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