From: Yifan Zha <Yifan.Zha@amd.com>
Date: Tue, 23 Aug 2022 05:54:57 +0000 (+0800)
Subject: drm/amd: Skip smu_v13 register irq on SRIOV VF
X-Git-Tag: v6.1-rc1~159^2~15^2~15
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=72be7316587835e0c76dad472569453e902b562e;p=thirdparty%2Fkernel%2Flinux.git

drm/amd: Skip smu_v13 register irq on SRIOV VF

[Why]
VF do not need to handle SMU IRQ state.
L1 Policy will block VF access THM_THERMAL_INT_CTRL and MP1_SMN_IH_SW_INT/CNTL.

[How]
Skip smu_v13 init register_irq_handler under SRIOV VF.
And add irq_src check in enable/disable thermal alert
to avoid thermal alert enable/disable fail.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
index 65045a955ab25..6e4a052dc53de 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -1108,6 +1108,9 @@ int smu_v13_0_enable_thermal_alert(struct smu_context *smu)
 {
 	int ret = 0;
 
+	if (!smu->irq_source.num_types)
+		return 0;
+
 	ret = amdgpu_irq_get(smu->adev, &smu->irq_source, 0);
 	if (ret)
 		return ret;
@@ -1117,6 +1120,9 @@ int smu_v13_0_enable_thermal_alert(struct smu_context *smu)
 
 int smu_v13_0_disable_thermal_alert(struct smu_context *smu)
 {
+	if (!smu->irq_source.num_types)
+		return 0;
+
 	return amdgpu_irq_put(smu->adev, &smu->irq_source, 0);
 }
 
@@ -1488,6 +1494,9 @@ int smu_v13_0_register_irq_handler(struct smu_context *smu)
 	struct amdgpu_irq_src *irq_src = &smu->irq_source;
 	int ret = 0;
 
+	if (amdgpu_sriov_vf(adev))
+		return 0;
+
 	irq_src->num_types = 1;
 	irq_src->funcs = &smu_v13_0_irq_funcs;