xilinx: versal: Implement device related PM APIs
Implement below device related PM APIs:
- Request device
- Release device
- Set requirement
- Get device status
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I9d84b9ee1be3ee6c5f27a4d6dc324113fc1acb68
diff --git a/plat/xilinx/versal/pm_service/pm_api_sys.c b/plat/xilinx/versal/pm_service/pm_api_sys.c
index 16c2541..64c1e35 100644
--- a/plat/xilinx/versal/pm_service/pm_api_sys.c
+++ b/plat/xilinx/versal/pm_service/pm_api_sys.c
@@ -158,3 +158,80 @@
else
return pm_ipi_send(primary_proc, payload);
}
+
+/**
+ * pm_request_device() - Request a device
+ * @device_id Device ID
+ * @capabilities Requested capabilities for the device
+ * @qos Required Quality of Service
+ * @ack Flag to specify whether acknowledge requested
+ *
+ * @return Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_request_device(uint32_t device_id, uint32_t capabilities,
+ uint32_t qos, uint32_t ack)
+{
+ uint32_t payload[PAYLOAD_ARG_CNT];
+
+ /* Send request to the PMC */
+ PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_REQUEST_DEVICE,
+ device_id, capabilities, qos, ack);
+
+ return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
+}
+
+/**
+ * pm_release_device() - Release a device
+ * @device_id Device ID
+ *
+ * @return Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_release_device(uint32_t device_id)
+{
+ uint32_t payload[PAYLOAD_ARG_CNT];
+
+ /* Send request to the PMC */
+ PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_RELEASE_DEVICE,
+ device_id);
+
+ return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
+}
+
+/**
+ * pm_set_requirement() - Set requirement for the device
+ * @device_id Device ID
+ * @capabilities Requested capabilities for the device
+ * @latency Requested maximum latency
+ * @qos Required Quality of Service
+ *
+ * @return Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_set_requirement(uint32_t device_id, uint32_t capabilities,
+ uint32_t latency, uint32_t qos)
+{
+ uint32_t payload[PAYLOAD_ARG_CNT];
+
+ /* Send request to the PMC */
+ PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_SET_REQUIREMENT,
+ device_id, capabilities, latency, qos);
+
+ return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
+}
+
+/**
+ * pm_get_device_status() - Get device's status
+ * @device_id Device ID
+ * @response Buffer to store device status response
+ *
+ * @return Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_get_device_status(uint32_t device_id, uint32_t *response)
+{
+ uint32_t payload[PAYLOAD_ARG_CNT];
+
+ /* Send request to the PMC */
+ PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_GET_DEVICE_STATUS,
+ device_id);
+
+ return pm_ipi_send_sync(primary_proc, payload, response, 3);
+}
diff --git a/plat/xilinx/versal/pm_service/pm_api_sys.h b/plat/xilinx/versal/pm_service/pm_api_sys.h
index f676823..6e50e94 100644
--- a/plat/xilinx/versal/pm_service/pm_api_sys.h
+++ b/plat/xilinx/versal/pm_service/pm_api_sys.h
@@ -24,5 +24,11 @@
uint8_t ack,
unsigned int latency,
unsigned int state);
+enum pm_ret_status pm_request_device(uint32_t device_id, uint32_t capabilities,
+ uint32_t qos, uint32_t ack);
+enum pm_ret_status pm_release_device(uint32_t device_id);
+enum pm_ret_status pm_set_requirement(uint32_t device_id, uint32_t capabilities,
+ uint32_t latency, uint32_t qos);
+enum pm_ret_status pm_get_device_status(uint32_t device_id, uint32_t *response);
#endif /* PM_API_SYS_H */
diff --git a/plat/xilinx/versal/pm_service/pm_defs.h b/plat/xilinx/versal/pm_service/pm_defs.h
index d482cb7..feaeee1 100644
--- a/plat/xilinx/versal/pm_service/pm_defs.h
+++ b/plat/xilinx/versal/pm_service/pm_defs.h
@@ -24,9 +24,13 @@
/* PM API ids */
#define PM_GET_API_VERSION 1U
+#define PM_GET_DEVICE_STATUS 3U
#define PM_REQ_SUSPEND 6U
#define PM_SELF_SUSPEND 7U
#define PM_ABORT_SUSPEND 9U
+#define PM_REQUEST_DEVICE 13U
+#define PM_RELEASE_DEVICE 14U
+#define PM_SET_REQUIREMENT 15U
/*********************************************************************
* Enum definitions
@@ -40,6 +44,22 @@
};
/**
+ * Subsystem IDs
+ */
+typedef enum {
+ XPM_SUBSYSID_PMC,
+ XPM_SUBSYSID_PSM,
+ XPM_SUBSYSID_APU,
+ XPM_SUBSYSID_RPU0_LOCK,
+ XPM_SUBSYSID_RPU0_0,
+ XPM_SUBSYSID_RPU0_1,
+ XPM_SUBSYSID_DDR0,
+ XPM_SUBSYSID_ME,
+ XPM_SUBSYSID_PL,
+ XPM_SUBSYSID_MAX,
+} XPm_SubsystemId;
+
+/**
* @PM_RET_SUCCESS: success
* @PM_RET_ERROR_ARGS: illegal arguments provided (deprecated)
* @PM_RET_ERROR_NOTSUPPORTED: feature not supported (deprecated)