[AMD Official Use Only - General]

Reviewed-by: Yifan Zhang <yifan1.zh...@amd.com>


-----Original Message-----
From: Huang, Tim <tim.hu...@amd.com> 
Sent: Saturday, January 28, 2023 11:36 AM
To: amd-gfx@lists.freedesktop.org
Cc: Deucher, Alexander <alexander.deuc...@amd.com>; Zhang, Yifan 
<yifan1.zh...@amd.com>; Du, Xiaojian <xiaojian...@amd.com>; Ma, Li 
<li...@amd.com>; Limonciello, Mario <mario.limoncie...@amd.com>; Huang, Tim 
<tim.hu...@amd.com>
Subject: [PATCH RESEND] drm/amd/pm: drop unneeded dpm features disablement for 
SMU 13.0.4/11

PMFW will handle the features disablement properly for gpu reset case, driver 
involvement may cause some unexpected issues.

Signed-off-by: Tim Huang <tim.hu...@amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c 
b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index ec52830dde24..8bae3fe869cd 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1497,6 +1497,20 @@ static int smu_disable_dpms(struct smu_context *smu)
                }
        }
 
+       /*
+        * For SMU 13.0.4/11, PMFW will handle the features disablement properly
+        * for gpu reset case. Driver involvement is unnecessary.
+        */
+       if (amdgpu_in_reset(adev)) {
+               switch (adev->ip_versions[MP1_HWIP][0]) {
+               case IP_VERSION(13, 0, 4):
+               case IP_VERSION(13, 0, 11):
+                       return 0;
+               default:
+                       break;
+               }
+       }
+
        /*
         * For gpu reset, runpm and hibernation through BACO,
         * BACO feature has to be kept enabled.
--
2.25.1

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