Merge tag 'rproc-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc...

[platform/kernel/linux-starfive.git] / drivers / firmware / xilinx / zynqmp.c

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 6bc6b6c..129f68d 100644 (file)
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -1167,6 +1167,103 @@ int zynqmp_pm_release_node(const u32 node)
 EXPORT_SYMBOL_GPL(zynqmp_pm_release_node);
 
 /**
+ * zynqmp_pm_get_rpu_mode() - Get RPU mode
+ * @node_id:   Node ID of the device
+ * @rpu_mode:  return by reference value
+ *             either split or lockstep
+ *
+ * Return:     return 0 on success or error+reason.
+ *             if success, then  rpu_mode will be set
+ *             to current rpu mode.
+ */
+int zynqmp_pm_get_rpu_mode(u32 node_id, enum rpu_oper_mode *rpu_mode)
+{
+       u32 ret_payload[PAYLOAD_ARG_CNT];
+       int ret;
+
+       ret = zynqmp_pm_invoke_fn(PM_IOCTL, node_id,
+                                 IOCTL_GET_RPU_OPER_MODE, 0, 0, ret_payload);
+
+       /* only set rpu_mode if no error */
+       if (ret == XST_PM_SUCCESS)
+               *rpu_mode = ret_payload[0];
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_get_rpu_mode);
+
+/**
+ * zynqmp_pm_set_rpu_mode() - Set RPU mode
+ * @node_id:   Node ID of the device
+ * @rpu_mode:  Argument 1 to requested IOCTL call. either split or lockstep
+ *
+ *             This function is used to set RPU mode to split or
+ *             lockstep
+ *
+ * Return:     Returns status, either success or error+reason
+ */
+int zynqmp_pm_set_rpu_mode(u32 node_id, enum rpu_oper_mode rpu_mode)
+{
+       return zynqmp_pm_invoke_fn(PM_IOCTL, node_id,
+                                  IOCTL_SET_RPU_OPER_MODE, (u32)rpu_mode,
+                                  0, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_set_rpu_mode);
+
+/**
+ * zynqmp_pm_set_tcm_config - configure TCM
+ * @node_id:   Firmware specific TCM subsystem ID
+ * @tcm_mode:  Argument 1 to requested IOCTL call
+ *              either PM_RPU_TCM_COMB or PM_RPU_TCM_SPLIT
+ *
+ * This function is used to set RPU mode to split or combined
+ *
+ * Return: status: 0 for success, else failure
+ */
+int zynqmp_pm_set_tcm_config(u32 node_id, enum rpu_tcm_comb tcm_mode)
+{
+       return zynqmp_pm_invoke_fn(PM_IOCTL, node_id,
+                                  IOCTL_TCM_COMB_CONFIG, (u32)tcm_mode, 0,
+                                  NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_set_tcm_config);
+
+/**
+ * zynqmp_pm_force_pwrdwn - PM call to request for another PU or subsystem to
+ *             be powered down forcefully
+ * @node:  Node ID of the targeted PU or subsystem
+ * @ack:   Flag to specify whether acknowledge is requested
+ *
+ * Return: status, either success or error+reason
+ */
+int zynqmp_pm_force_pwrdwn(const u32 node,
+                          const enum zynqmp_pm_request_ack ack)
+{
+       return zynqmp_pm_invoke_fn(PM_FORCE_POWERDOWN, node, ack, 0, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_force_pwrdwn);
+
+/**
+ * zynqmp_pm_request_wake - PM call to wake up selected master or subsystem
+ * @node:  Node ID of the master or subsystem
+ * @set_addr:  Specifies whether the address argument is relevant
+ * @address:   Address from which to resume when woken up
+ * @ack:   Flag to specify whether acknowledge requested
+ *
+ * Return: status, either success or error+reason
+ */
+int zynqmp_pm_request_wake(const u32 node,
+                          const bool set_addr,
+                          const u64 address,
+                          const enum zynqmp_pm_request_ack ack)
+{
+       /* set_addr flag is encoded into 1st bit of address */
+       return zynqmp_pm_invoke_fn(PM_REQUEST_WAKEUP, node, address | set_addr,
+                                  address >> 32, ack, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_request_wake);
+
+/**
  * zynqmp_pm_set_requirement() - PM call to set requirement for PM slaves
  * @node:              Node ID of the slave
  * @capabilities:      Requested capabilities of the slave