drm/amdgpu: fix missing stuff in NBIO v7.11

add get_clockgating_state, update_medium_grain_light_sleep and
update_medium_grain_clock_gating in nbio_v7_11_funcs
v1:
add missing funcs in nbio_v7_11.c
v2:
modify the if condition and add spport for nbio v7.11 clockgating.

Signed-off-by: Li Ma <li.ma@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c

@@ -272,6 +272,81 @@ static void nbio_v7_11_init_registers(struct amdgpu_device *adev)
 */
 }
 
+static void nbio_v7_11_update_medium_grain_clock_gating(struct amdgpu_device *adev,
+						       bool enable)
+{
+	uint32_t def, data;
+
+	if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
+		return;
+
+	def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL);
+	if (enable) {
+		data |= (BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
+			 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
+			 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
+			 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
+			 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
+			 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
+	} else {
+		data &= ~(BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
+			  BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
+			  BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
+			  BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
+			  BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
+			  BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
+	}
+
+	if (def != data)
+		WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL, data);
+}
+
+static void nbio_v7_11_update_medium_grain_light_sleep(struct amdgpu_device *adev,
+						      bool enable)
+{
+	uint32_t def, data;
+
+	if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
+		return;
+
+	def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2);
+	if (enable)
+		data |= BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
+	else
+		data &= ~BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
+
+	if (def != data)
+		WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2, data);
+
+	def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1);
+	if (enable) {
+		data |= (BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
+			BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
+	} else {
+		data &= ~(BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
+			BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
+	}
+
+	if (def != data)
+		WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1, data);
+}
+
+static void nbio_v7_11_get_clockgating_state(struct amdgpu_device *adev,
+					    u64 *flags)
+{
+	uint32_t data;
+
+	/* AMD_CG_SUPPORT_BIF_MGCG */
+	data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL);
+	if (data & BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
+		*flags |= AMD_CG_SUPPORT_BIF_MGCG;
+
+	/* AMD_CG_SUPPORT_BIF_LS */
+	data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2);
+	if (data & BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
+		*flags |= AMD_CG_SUPPORT_BIF_LS;
+}
+
 const struct amdgpu_nbio_funcs nbio_v7_11_funcs = {
 	.get_hdp_flush_req_offset = nbio_v7_11_get_hdp_flush_req_offset,
 	.get_hdp_flush_done_offset = nbio_v7_11_get_hdp_flush_done_offset,
@@ -288,6 +363,9 @@ const struct amdgpu_nbio_funcs nbio_v7_11_funcs = {
 	.enable_doorbell_aperture = nbio_v7_11_enable_doorbell_aperture,
 	.enable_doorbell_selfring_aperture = nbio_v7_11_enable_doorbell_selfring_aperture,
 	.ih_doorbell_range = nbio_v7_11_ih_doorbell_range,
+	.update_medium_grain_clock_gating = nbio_v7_11_update_medium_grain_clock_gating,
+	.update_medium_grain_light_sleep = nbio_v7_11_update_medium_grain_light_sleep,
+	.get_clockgating_state = nbio_v7_11_get_clockgating_state,
 	.ih_control = nbio_v7_11_ih_control,
 	.init_registers = nbio_v7_11_init_registers,
 	.remap_hdp_registers = nbio_v7_11_remap_hdp_registers,

drivers/gpu/drm/amd/amdgpu/soc21.c

@@ -863,6 +863,7 @@ static int soc21_common_set_clockgating_state(void *handle,
 	case IP_VERSION(4, 3, 0):
 	case IP_VERSION(4, 3, 1):
 	case IP_VERSION(7, 7, 0):
+	case IP_VERSION(7, 11, 0):
 		adev->nbio.funcs->update_medium_grain_clock_gating(adev,
 				state == AMD_CG_STATE_GATE);
 		adev->nbio.funcs->update_medium_grain_light_sleep(adev,

drivers/gpu/drm/amd/include/asic_reg/nbio/nbio_7_11_0_offset.h

@@ -775,6 +775,12 @@
 #define regPCIE_USB4_ERR_CNTL5_BASE_IDX                                                                 5
 #define regPCIE_USB4_LC_CNTL1                                                                           0x420179
 #define regPCIE_USB4_LC_CNTL1_BASE_IDX                                                                  5
+#define regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL                                                      0x420118
+#define regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL_BASE_IDX                                             5
+#define regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2                                                       0x42001c
+#define regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2_BASE_IDX                                              5
+#define regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1                                             0x420187
+#define regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1_BASE_IDX                                    5
 
 
 // addressBlock: nbio_nbif0_bif_cfg_dev0_rc_bifcfgdecp

drivers/gpu/drm/amd/include/asic_reg/nbio/nbio_7_11_0_sh_mask.h

@@ -24634,7 +24634,18 @@
 //PCIE_USB4_LC_CNTL1
 #define PCIE_USB4_LC_CNTL1__PCIE_USB_ROUTER_CLEAR_PATH_MODE__SHIFT                                            0x0
 #define PCIE_USB4_LC_CNTL1__PCIE_USB_ROUTER_CLEAR_PATH_MODE_MASK                                              0x00000001L
-
+//BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL
+#define BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK                                    0x00000001L
+#define BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK                                   0x00000002L
+#define BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK                                  0x00000020L
+#define BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK                                  0x00000040L
+#define BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK                                  0x00000080L
+#define BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK                                 0x00000100L
+//BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2
+#define BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK                                            0x00010000L
+//BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1
+#define BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK                                  0x00000001L
+#define BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK                               0x00000008L
 
 // addressBlock: nbio_nbif0_bif_cfg_dev0_rc_bifcfgdecp
 //BIF_CFG_DEV0_RC0_VENDOR_ID