1 files changed, 38 insertions, 6 deletions

diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h
index eec7c2478b0d..8ab5df769923 100644
--- a/include/linux/fpga/fpga-mgr.h
+++ b/include/linux/fpga/fpga-mgr.h
@@ -53,12 +53,20 @@ enum fpga_mgr_states {
 	FPGA_MGR_STATE_OPERATING,
 };
 
-/*
- * FPGA Manager flags
- * FPGA_MGR_PARTIAL_RECONFIG: do partial reconfiguration if supported
- * FPGA_MGR_EXTERNAL_CONFIG: FPGA has been configured prior to Linux booting
- * FPGA_MGR_BITSTREAM_LSB_FIRST: SPI bitstream bit order is LSB first
- * FPGA_MGR_COMPRESSED_BITSTREAM: FPGA bitstream is compressed
+/**
+ * DOC: FPGA Manager flags
+ *
+ * Flags used in the &fpga_image_info->flags field
+ *
+ * %FPGA_MGR_PARTIAL_RECONFIG: do partial reconfiguration if supported
+ *
+ * %FPGA_MGR_EXTERNAL_CONFIG: FPGA has been configured prior to Linux booting
+ *
+ * %FPGA_MGR_ENCRYPTED_BITSTREAM: indicates bitstream is encrypted
+ *
+ * %FPGA_MGR_BITSTREAM_LSB_FIRST: SPI bitstream bit order is LSB first
+ *
+ * %FPGA_MGR_COMPRESSED_BITSTREAM: FPGA bitstream is compressed
  */
 #define FPGA_MGR_PARTIAL_RECONFIG	BIT(0)
 #define FPGA_MGR_EXTERNAL_CONFIG	BIT(1)
@@ -77,6 +85,7 @@ enum fpga_mgr_states {
  * @sgt: scatter/gather table containing FPGA image
  * @buf: contiguous buffer containing FPGA image
  * @count: size of buf
+ * @region_id: id of target region
  * @dev: device that owns this
  * @overlay: Device Tree overlay
  */
@@ -89,6 +98,7 @@ struct fpga_image_info {
 	struct sg_table *sgt;
 	const char *buf;
 	size_t count;
+	int region_id;
 	struct device *dev;
 #ifdef CONFIG_OF
 	struct device_node *overlay;
@@ -99,6 +109,7 @@ struct fpga_image_info {
  * struct fpga_manager_ops - ops for low level fpga manager drivers
  * @initial_header_size: Maximum number of bytes that should be passed into write_init
  * @state: returns an enum value of the FPGA's state
+ * @status: returns status of the FPGA, including reconfiguration error code
  * @write_init: prepare the FPGA to receive confuration data
  * @write: write count bytes of configuration data to the FPGA
  * @write_sg: write the scatter list of configuration data to the FPGA
@@ -113,6 +124,7 @@ struct fpga_image_info {
 struct fpga_manager_ops {
 	size_t initial_header_size;
 	enum fpga_mgr_states (*state)(struct fpga_manager *mgr);
+	u64 (*status)(struct fpga_manager *mgr);
 	int (*write_init)(struct fpga_manager *mgr,
 			  struct fpga_image_info *info,
 			  const char *buf, size_t count);
@@ -124,12 +136,31 @@ struct fpga_manager_ops {
 	const struct attribute_group **groups;
 };
 
+/* FPGA manager status: Partial/Full Reconfiguration errors */
+#define FPGA_MGR_STATUS_OPERATION_ERR		BIT(0)
+#define FPGA_MGR_STATUS_CRC_ERR			BIT(1)
+#define FPGA_MGR_STATUS_INCOMPATIBLE_IMAGE_ERR	BIT(2)
+#define FPGA_MGR_STATUS_IP_PROTOCOL_ERR		BIT(3)
+#define FPGA_MGR_STATUS_FIFO_OVERFLOW_ERR	BIT(4)
+
+/**
+ * struct fpga_compat_id - id for compatibility check
+ *
+ * @id_h: high 64bit of the compat_id
+ * @id_l: low 64bit of the compat_id
+ */
+struct fpga_compat_id {
+	u64 id_h;
+	u64 id_l;
+};
+
 /**
  * struct fpga_manager - fpga manager structure
  * @name: name of low level fpga manager
  * @dev: fpga manager device
  * @ref_mutex: only allows one reference to fpga manager
  * @state: state of fpga manager
+ * @compat_id: FPGA manager id for compatibility check.
  * @mops: pointer to struct of fpga manager ops
  * @priv: low level driver private date
  */
@@ -138,6 +169,7 @@ struct fpga_manager {
 	struct device dev;
 	struct mutex ref_mutex;
 	enum fpga_mgr_states state;
+	struct fpga_compat_id *compat_id;
 	const struct fpga_manager_ops *mops;
 	void *priv;
 };