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<p style="margin-top:0;margin-bottom:0">Reviewed-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 Rex Zhu <Rex.Zhu@amd.com><br>
<b>Sent:</b> Friday, August 24, 2018 5:32:22 AM<br>
<b>To:</b> Zhou, Hang; amd-gfx@lists.freedesktop.org<br>
<b>Cc:</b> Zhu, Rex<br>
<b>Subject:</b> [PATCH] drm/amdgpu: Enable/disable gfx PG feature in rlc safe mode</font>
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<div class="PlainText">This is required by gfx hw and can fix the rlc hang when<br>
do s3 stree test on Cz/St.<br>
<br>
Signed-off-by: Hang Zhou <hang.zhou@amd.com><br>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com><br>
---<br>
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 11 ++++++++++-<br>
1 file changed, 10 insertions(+), 1 deletion(-)<br>
<br>
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br>
index 903725ba..a2acd76 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br>
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br>
@@ -5618,6 +5618,11 @@ static int gfx_v8_0_set_powergating_state(void *handle,<br>
if (amdgpu_sriov_vf(adev))<br>
return 0;<br>
<br>
+ if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |<br>
+ AMD_PG_SUPPORT_RLC_SMU_HS |<br>
+ AMD_PG_SUPPORT_CP |<br>
+ AMD_PG_SUPPORT_GFX_DMG))<br>
+ adev->gfx.rlc.funcs->enter_safe_mode(adev);<br>
switch (adev->asic_type) {<br>
case CHIP_CARRIZO:<br>
case CHIP_STONEY:<br>
@@ -5667,7 +5672,11 @@ static int gfx_v8_0_set_powergating_state(void *handle,<br>
default:<br>
break;<br>
}<br>
-<br>
+ if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |<br>
+ AMD_PG_SUPPORT_RLC_SMU_HS |<br>
+ AMD_PG_SUPPORT_CP |<br>
+ AMD_PG_SUPPORT_GFX_DMG))<br>
+ adev->gfx.rlc.funcs->exit_safe_mode(adev);<br>
return 0;<br>
}<br>
<br>
-- <br>
1.9.1<br>
<br>
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