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From 54a19a2500b483a217e65ebf5c4b5936bcf3150e Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Sun, 5 May 2019 11:00:50 +0800
Subject: [PATCH 1904/2940] drm/amd/powerplay: check for invalid profile_exit
setting
profile_exit performance level setting is valid only
when current mode is in profile mode.
Change-Id: I6940102d38dbb7a4b0233fce5277e1704672d8f4
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index e0789f0f2670..bd40d5d72508 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -351,6 +351,16 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
if (current_level == level)
return count;
+ /* profile_exit setting is valid only when current mode is in profile mode */
+ if (!(current_level & (AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
+ AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
+ AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
+ AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)) &&
+ (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)) {
+ pr_err("Currently not in any profile mode!\n");
+ return -EINVAL;
+ }
+
if (is_support_sw_smu(adev)) {
mutex_lock(&adev->pm.mutex);
if (adev->pm.dpm.thermal_active) {
--
2.17.1
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