diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
index 998b5d17b271b..0e664d0cc8d51 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
@@ -319,7 +319,7 @@ static void mmhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
 
 	tmp = mmMMVM_L2_CNTL5_DEFAULT;
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
-	WREG32_SOC15(GC, 0, mmMMVM_L2_CNTL5, tmp);
+	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL5, tmp);
 }
 
 static void mmhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
index 1b027d069ab40..4638ea7c2eec5 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
@@ -243,7 +243,7 @@ static void mmhub_v2_3_init_cache_regs(struct amdgpu_device *adev)
 
 	tmp = mmMMVM_L2_CNTL5_DEFAULT;
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
-	WREG32_SOC15(GC, 0, mmMMVM_L2_CNTL5, tmp);
+	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL5, tmp);
 }
 
 static void mmhub_v2_3_enable_system_domain(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
index a1d26c4d80b8c..16cc82215e2e1 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
@@ -275,7 +275,7 @@ static void mmhub_v3_0_init_cache_regs(struct amdgpu_device *adev)
 
 	tmp = regMMVM_L2_CNTL5_DEFAULT;
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
-	WREG32_SOC15(GC, 0, regMMVM_L2_CNTL5, tmp);
+	WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL5, tmp);
 }
 
 static void mmhub_v3_0_enable_system_domain(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c
index e8058edc1d108..6bdf2ef0298d6 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c
@@ -269,7 +269,7 @@ static void mmhub_v3_0_1_init_cache_regs(struct amdgpu_device *adev)
 
 	tmp = regMMVM_L2_CNTL5_DEFAULT;
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
-	WREG32_SOC15(GC, 0, regMMVM_L2_CNTL5, tmp);
+	WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL5, tmp);
 }
 
 static void mmhub_v3_0_1_enable_system_domain(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c
index 770be0a8f7ce7..45465acaa943a 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c
@@ -268,7 +268,7 @@ static void mmhub_v3_0_2_init_cache_regs(struct amdgpu_device *adev)
 
 	tmp = regMMVM_L2_CNTL5_DEFAULT;
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
-	WREG32_SOC15(GC, 0, regMMVM_L2_CNTL5, tmp);
+	WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL5, tmp);
 }
 
 static void mmhub_v3_0_2_enable_system_domain(struct amdgpu_device *adev)