From: chen gong <curry.gong@amd.com>
Date: Fri, 25 Oct 2019 10:51:23 +0000 (+0800)
Subject: drm/amd/powerplay: Disable gfx CGPG when suspend smu
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f509be184052e9279940dbcd02b0f8ac15b426ca;p=linux.git

drm/amd/powerplay: Disable gfx CGPG when suspend smu

if no disable gfx CGPG when suspend smu, enabling gfx CGPG will fail when resume smu.

Platform: Renoir
dmesg log information:

[  151.844110 ] amdgpu: [powerplay] SMU is resuming...
[  151.844116 ] amdgpu: [powerplay] dpm has been disabled
[  151.844604 ] amdgpu: [powerplay] Failed to send message 0x2f,response 0xfffffffb param 0x1
[  151.844605 ] amdgpu: [powerplay] SMU is resumed successfully!

Signed-off-by: chen gong <curry.gong@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 26923aa5aea10..4e468b0272c39 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1351,6 +1351,8 @@ static int smu_suspend(void *handle)
 	if (adev->asic_type >= CHIP_NAVI10 &&
 	    adev->gfx.rlc.funcs->stop)
 		adev->gfx.rlc.funcs->stop(adev);
+	if (smu->is_apu)
+		smu_set_gfx_cgpg(&adev->smu, false);
 
 	return 0;
 }