From 8dd45504a7d70a23be6e4415edbac0e197935686 Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Tue, 6 Aug 2019 16:14:22 +0800
Subject: drm/amd/powerplay: check before issuing messages for max sustainable
clocks
Git-commit: 8dd45504a7d70a23be6e4415edbac0e197935686
Patch-mainline: v5.4-rc1
References: bsc#1152489
Those messages are not supported on Arcturus and should not be
issued.
Affected ASIC: Arcturus
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index ee739c080943..8c4d3ee0295a 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -908,6 +908,10 @@ smu_v11_0_get_max_sustainable_clock(struct smu_context *smu, uint32_t *clock,
if (!smu->pm_enabled)
return ret;
+ if ((smu_msg_get_index(smu, SMU_MSG_GetDcModeMaxDpmFreq) < 0) ||
+ (smu_msg_get_index(smu, SMU_MSG_GetMaxDpmFreq) < 0))
+ return 0;
+
clk_id = smu_clk_get_index(smu, clock_select);
if (clk_id < 0)
return -EINVAL;
--
2.28.0