diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
index c02ffbd1df763780e11e8397aa33f6b8076738ae..5ac683fd074963dc2437f2b446522271160d58a0 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
@@ -1153,6 +1153,11 @@ struct pptable_funcs {
 	 *                                      parameters to defaults.
 	 */
 	int (*set_fine_grain_gfx_freq_parameters)(struct smu_context *smu);
+
+	/**
+	 * @set_light_sbr:  Set light sbr mode for the SMU.
+	 */
+	int (*set_light_sbr)(struct smu_context *smu, bool enable);
 };
 
 typedef enum {
@@ -1356,5 +1361,7 @@ ssize_t smu_sys_get_gpu_metrics(void *handle, void **table);
 int smu_enable_mgpu_fan_boost(void *handle);
 int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state);
 
+int smu_set_light_sbr(struct smu_context *smu, bool enable);
+
 #endif
 #endif
diff --git a/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h b/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h
index 79afb132164ead8ef485028b4abb931689090d4e..45f5d29bc70574662c1380c15ab2a16049396335 100644
--- a/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h
+++ b/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h
@@ -120,6 +120,13 @@
 #define PPSMC_MSG_ReadSerialNumTop32		 0x40
 #define PPSMC_MSG_ReadSerialNumBottom32		 0x41
 
+/* paramater for MSG_LightSBR
+ * 1 -- Enable light secondary bus reset, only do nbio respond without further handling,
+ *      leave driver to handle the real reset
+ * 0 -- Disable LightSBR, default behavior, SMU will pass the reset to PSP
+ */
+#define PPSMC_MSG_LightSBR			 0x42
+
 typedef uint32_t PPSMC_Result;
 typedef uint32_t PPSMC_Msg;
 #pragma pack(pop)
diff --git a/drivers/gpu/drm/amd/pm/inc/smu_types.h b/drivers/gpu/drm/amd/pm/inc/smu_types.h
index e9a0bda98fd75d43c0addf753916bffab736b6ba..5bfb60f41dd422b92d685aea3db2c0a2df1f0c73 100644
--- a/drivers/gpu/drm/amd/pm/inc/smu_types.h
+++ b/drivers/gpu/drm/amd/pm/inc/smu_types.h
@@ -224,6 +224,7 @@
 	__SMU_DUMMY_MAP(EnableDeterminism),		\
 	__SMU_DUMMY_MAP(DisableDeterminism),		\
 	__SMU_DUMMY_MAP(SetUclkDpmMode),		\
+	__SMU_DUMMY_MAP(LightSBR),			\
 
 #undef __SMU_DUMMY_MAP
 #define __SMU_DUMMY_MAP(type)	SMU_MSG_##type
diff --git a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
index bf570a7af6a76eb81821972cd3871a298e8ee342..907e0967a9e814912aaa278ac5da1a5878cecfe6 100644
--- a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
+++ b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
@@ -295,5 +295,7 @@ int smu_v11_0_deep_sleep_control(struct smu_context *smu,
 
 void smu_v11_0_interrupt_work(struct smu_context *smu);
 
+int smu_v11_0_set_light_sbr(struct smu_context *smu, bool enable);
+
 #endif
 #endif
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 6a6fafc115881e398ad596f3f88b3a08362bfe48..1202b9e7d0f9653a6f27d38eda33c5015dee2a1a 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -2972,6 +2972,19 @@ int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state)
 	return ret;
 }
 
+int smu_set_light_sbr(struct smu_context *smu, bool enable)
+{
+	int ret = 0;
+
+	mutex_lock(&smu->mutex);
+	if (smu->ppt_funcs->set_light_sbr)
+		ret = smu->ppt_funcs->set_light_sbr(smu, enable);
+	mutex_unlock(&smu->mutex);
+
+	return ret;
+}
+
+
 static const struct amd_pm_funcs swsmu_pm_funcs = {
 	/* export for sysfs */
 	.set_fan_control_mode    = smu_pp_set_fan_control_mode,
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
index f76d1b8aeeccdd7155d7ad81d3fee7ade91d13b1..f82dd8a5c7737f2bca8e5e2463a8ecb4f26f562a 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
@@ -142,6 +142,7 @@ static const struct cmn2asic_msg_mapping arcturus_message_map[SMU_MSG_MAX_COUNT]
 	MSG_MAP(GmiPwrDnControl,		     PPSMC_MSG_GmiPwrDnControl,			0),
 	MSG_MAP(ReadSerialNumTop32,		     PPSMC_MSG_ReadSerialNumTop32,		1),
 	MSG_MAP(ReadSerialNumBottom32,		     PPSMC_MSG_ReadSerialNumBottom32,		1),
+	MSG_MAP(LightSBR,			     PPSMC_MSG_LightSBR,			0),
 };
 
 static const struct cmn2asic_mapping arcturus_clk_map[SMU_CLK_COUNT] = {
@@ -2363,6 +2364,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
 	.deep_sleep_control = smu_v11_0_deep_sleep_control,
 	.get_fan_parameters = arcturus_get_fan_parameters,
 	.interrupt_work = smu_v11_0_interrupt_work,
+	.set_light_sbr = smu_v11_0_set_light_sbr,
 };
 
 void arcturus_set_ppt_funcs(struct smu_context *smu)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
index 97acb04e1b5aae1ff7f67e0242c29cd263036b5f..635bd5da21333c46692fb3cbd59ad1c00bff5614 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -1603,6 +1603,16 @@ int smu_v11_0_mode1_reset(struct smu_context *smu)
 	return ret;
 }
 
+int smu_v11_0_set_light_sbr(struct smu_context *smu, bool enable)
+{
+	int ret = 0;
+
+	ret =  smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_LightSBR, enable ? 1 : 0, NULL);
+
+	return ret;
+}
+
+
 int smu_v11_0_get_dpm_ultimate_freq(struct smu_context *smu, enum smu_clk_type clk_type,
 						 uint32_t *min, uint32_t *max)
 {