From 7fb975040c55e817312871db4bd8cc07ff55e567 Mon Sep 17 00:00:00 2001
From: "Stanley.Yang" <Stanley.Yang@amd.com>
Date: Thu, 10 Mar 2022 21:55:09 +0800
Subject: drm/amd/pm: use pm mutex to protect ecc info table
Git-commit: a29d44aea1aef0bc58d4951f2ddbe5b22d9a2e94
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/pm/amdgpu_dpm.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 9a892d6d1d7a..89fbee568be4 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -643,11 +643,16 @@ int amdgpu_dpm_get_ecc_info(struct amdgpu_device *adev,
void *umc_ecc)
{
struct smu_context *smu = adev->powerplay.pp_handle;
+ int ret = 0;
if (!is_support_sw_smu(adev))
return -EOPNOTSUPP;
- return smu_get_ecc_info(smu, umc_ecc);
+ mutex_lock(&adev->pm.mutex);
+ ret = smu_get_ecc_info(smu, umc_ecc);
+ mutex_unlock(&adev->pm.mutex);
+
+ return ret;
}
struct amd_vce_state *amdgpu_dpm_get_vce_clock_state(struct amdgpu_device *adev,
--
2.38.1