firmware: ti_sci: Add support for firewall management
TI-SCI message protocol provides support for controlling the firewall
configurations available in SoC.
Introduce support for the set of TI-SCI message protocol APIs that
provide us with this capability of controlling firewalls.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
diff --git a/drivers/firmware/ti_sci.h b/drivers/firmware/ti_sci.h
index 2d87cdd..1b601ff 100644
--- a/drivers/firmware/ti_sci.h
+++ b/drivers/firmware/ti_sci.h
@@ -79,6 +79,10 @@
#define TISCI_MSG_RM_UDMAP_FLOW_GET_CFG 0x1232
#define TISCI_MSG_RM_UDMAP_FLOW_SIZE_THRESH_GET_CFG 0x1233
+#define TISCI_MSG_FWL_SET 0x9000
+#define TISCI_MSG_FWL_GET 0x9001
+#define TISCI_MSG_FWL_CHANGE_OWNER 0x9002
+
/**
* struct ti_sci_msg_hdr - Generic Message Header for All messages and responses
* @type: Type of messages: One of TI_SCI_MSG* values
@@ -1338,4 +1342,121 @@
struct ti_sci_msg_hdr hdr;
} __packed;
+#define FWL_MAX_PRIVID_SLOTS 3U
+
+/**
+ * struct ti_sci_msg_fwl_set_firewall_region_req - Request for configuring the firewall permissions.
+ *
+ * @hdr: Generic Header
+ *
+ * @fwl_id: Firewall ID in question
+ * @region: Region or channel number to set config info
+ * This field is unused in case of a simple firewall and must be initialized
+ * to zero. In case of a region based firewall, this field indicates the
+ * region in question. (index starting from 0) In case of a channel based
+ * firewall, this field indicates the channel in question (index starting
+ * from 0)
+ * @n_permission_regs: Number of permission registers to set
+ * @control: Contents of the firewall CONTROL register to set
+ * @permissions: Contents of the firewall PERMISSION register to set
+ * @start_address: Contents of the firewall START_ADDRESS register to set
+ * @end_address: Contents of the firewall END_ADDRESS register to set
+ */
+
+struct ti_sci_msg_fwl_set_firewall_region_req {
+ struct ti_sci_msg_hdr hdr;
+ u16 fwl_id;
+ u16 region;
+ u32 n_permission_regs;
+ u32 control;
+ u32 permissions[FWL_MAX_PRIVID_SLOTS];
+ u64 start_address;
+ u64 end_address;
+} __packed;
+
+/**
+ * struct ti_sci_msg_fwl_get_firewall_region_req - Request for retrieving the firewall permissions
+ *
+ * @hdr: Generic Header
+ *
+ * @fwl_id: Firewall ID in question
+ * @region: Region or channel number to get config info
+ * This field is unused in case of a simple firewall and must be initialized
+ * to zero. In case of a region based firewall, this field indicates the
+ * region in question (index starting from 0). In case of a channel based
+ * firewall, this field indicates the channel in question (index starting
+ * from 0).
+ * @n_permission_regs: Number of permission registers to retrieve
+ */
+struct ti_sci_msg_fwl_get_firewall_region_req {
+ struct ti_sci_msg_hdr hdr;
+ u16 fwl_id;
+ u16 region;
+ u32 n_permission_regs;
+} __packed;
+
+/**
+ * struct ti_sci_msg_fwl_get_firewall_region_resp - Response for retrieving the firewall permissions
+ *
+ * @hdr: Generic Header
+ *
+ * @fwl_id: Firewall ID in question
+ * @region: Region or channel number to set config info This field is
+ * unused in case of a simple firewall and must be initialized to zero. In
+ * case of a region based firewall, this field indicates the region in
+ * question. (index starting from 0) In case of a channel based firewall, this
+ * field indicates the channel in question (index starting from 0)
+ * @n_permission_regs: Number of permission registers retrieved
+ * @control: Contents of the firewall CONTROL register
+ * @permissions: Contents of the firewall PERMISSION registers
+ * @start_address: Contents of the firewall START_ADDRESS register This is not applicable for channelized firewalls.
+ * @end_address: Contents of the firewall END_ADDRESS register This is not applicable for channelized firewalls.
+ */
+struct ti_sci_msg_fwl_get_firewall_region_resp {
+ struct ti_sci_msg_hdr hdr;
+ u16 fwl_id;
+ u16 region;
+ u32 n_permission_regs;
+ u32 control;
+ u32 permissions[FWL_MAX_PRIVID_SLOTS];
+ u64 start_address;
+ u64 end_address;
+} __packed;
+
+/**
+ * struct ti_sci_msg_fwl_change_owner_info_req - Request for a firewall owner change
+ *
+ * @hdr: Generic Header
+ *
+ * @fwl_id: Firewall ID in question
+ * @region: Region or channel number if applicable
+ * @owner_index: New owner index to transfer ownership to
+ */
+struct ti_sci_msg_fwl_change_owner_info_req {
+ struct ti_sci_msg_hdr hdr;
+ u16 fwl_id;
+ u16 region;
+ u8 owner_index;
+} __packed;
+
+/**
+ * struct ti_sci_msg_fwl_change_owner_info_resp - Response for a firewall owner change
+ *
+ * @hdr: Generic Header
+ *
+ * @fwl_id: Firewall ID specified in request
+ * @region: Region or channel number specified in request
+ * @owner_index: Owner index specified in request
+ * @owner_privid: New owner priv-ID returned by DMSC.
+ * @owner_permission_bits: New owner permission bits returned by DMSC.
+ */
+struct ti_sci_msg_fwl_change_owner_info_resp {
+ struct ti_sci_msg_hdr hdr;
+ u16 fwl_id;
+ u16 region;
+ u8 owner_index;
+ u8 owner_privid;
+ u16 owner_permission_bits;
+} __packed;
+
#endif /* __TI_SCI_H */