add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/misc/mei/hw.h
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@@ -1,17 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0 */
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 /*
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- *
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+ * Copyright (c) 2003-2020, Intel Corporation. All rights reserved
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  * Intel Management Engine Interface (Intel MEI) Linux driver
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- * Copyright (c) 2003-2012, Intel Corporation.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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  */
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6
 
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 #ifndef _MEI_HW_TYPES_H_
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@@ -35,7 +25,7 @@
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 /*
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  * MEI Version
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  */
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-#define HBM_MINOR_VERSION                   0
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+#define HBM_MINOR_VERSION                   2
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 #define HBM_MAJOR_VERSION                   2
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 /*
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@@ -86,6 +76,18 @@
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 #define HBM_MINOR_VERSION_DR               1
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 #define HBM_MAJOR_VERSION_DR               2
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+/*
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+ * MEI version with vm tag support
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+ */
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+#define HBM_MINOR_VERSION_VT               2
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+#define HBM_MAJOR_VERSION_VT               2
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+
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+/*
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+ * MEI version with capabilities message support
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+ */
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+#define HBM_MINOR_VERSION_CAP              2
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+#define HBM_MAJOR_VERSION_CAP              2
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+
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 /* Host bus message command opcode */
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 #define MEI_HBM_CMD_OP_MSK                  0x7f
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 /* Host bus message command RESPONSE */
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@@ -130,6 +132,9 @@
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 #define MEI_HBM_DMA_SETUP_REQ_CMD           0x12
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 #define MEI_HBM_DMA_SETUP_RES_CMD           0x92
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+
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+#define MEI_HBM_CAPABILITIES_REQ_CMD        0x13
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+#define MEI_HBM_CAPABILITIES_RES_CMD        0x93
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 /*
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  * MEI Stop Reason
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@@ -192,9 +197,94 @@
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 /*
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  * Client Disconnect Status
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  */
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-enum  mei_cl_disconnect_status {
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+enum mei_cl_disconnect_status {
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 	MEI_CL_DISCONN_SUCCESS = MEI_HBMS_SUCCESS
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 };
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+
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+/**
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+ * enum mei_ext_hdr_type - extended header type used in
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+ *    extended header TLV
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+ *
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+ * @MEI_EXT_HDR_NONE: sentinel
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+ * @MEI_EXT_HDR_VTAG: vtag header
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+ */
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+enum mei_ext_hdr_type {
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+	MEI_EXT_HDR_NONE = 0,
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+	MEI_EXT_HDR_VTAG = 1,
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+};
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+
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+/**
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+ * struct mei_ext_hdr - extend header descriptor (TLV)
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+ * @type: enum mei_ext_hdr_type
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+ * @length: length excluding descriptor
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+ * @ext_payload: payload of the specific extended header
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+ * @hdr: place holder for actual header
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+ */
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+struct mei_ext_hdr {
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+	u8 type;
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+	u8 length;
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+	u8 ext_payload[2];
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+	u8 hdr[];
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+};
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+
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+/**
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+ * struct mei_ext_meta_hdr - extend header meta data
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+ * @count: number of headers
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+ * @size: total size of the extended header list excluding meta header
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+ * @reserved: reserved
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+ * @hdrs: extended headers TLV list
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+ */
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+struct mei_ext_meta_hdr {
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+	u8 count;
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+	u8 size;
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+	u8 reserved[2];
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+	struct mei_ext_hdr hdrs[];
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+};
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+
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+/*
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+ * Extended header iterator functions
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+ */
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+/**
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+ * mei_ext_hdr - extended header iterator begin
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+ *
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+ * @meta: meta header of the extended header list
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+ *
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+ * Return:
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+ *     The first extended header
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+ */
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+static inline struct mei_ext_hdr *mei_ext_begin(struct mei_ext_meta_hdr *meta)
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+{
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+	return meta->hdrs;
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+}
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+
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+/**
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+ * mei_ext_last - check if the ext is the last one in the TLV list
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+ *
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+ * @meta: meta header of the extended header list
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+ * @ext: a meta header on the list
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+ *
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+ * Return: true if ext is the last header on the list
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+ */
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+static inline bool mei_ext_last(struct mei_ext_meta_hdr *meta,
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+				struct mei_ext_hdr *ext)
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+{
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+	return (u8 *)ext >= (u8 *)meta + sizeof(*meta) + (meta->size * 4);
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+}
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+
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+/**
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+ *mei_ext_next - following extended header on the TLV list
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+ *
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+ * @ext: current extend header
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+ *
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+ * Context: The function does not check for the overflows,
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+ *          one should call mei_ext_last before.
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+ *
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+ * Return: The following extend header after @ext
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+ */
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+static inline struct mei_ext_hdr *mei_ext_next(struct mei_ext_hdr *ext)
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+{
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+	return (struct mei_ext_hdr *)(ext->hdr + (ext->length * 4));
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+}
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 /**
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  * struct mei_msg_hdr - MEI BUS Interface Section
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@@ -203,23 +293,30 @@
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  * @host_addr: host address
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  * @length: message length
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  * @reserved: reserved
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+ * @extended: message has extended header
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  * @dma_ring: message is on dma ring
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  * @internal: message is internal
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  * @msg_complete: last packet of the message
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+ * @extension: extension of the header
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  */
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 struct mei_msg_hdr {
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 	u32 me_addr:8;
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 	u32 host_addr:8;
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 	u32 length:9;
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-	u32 reserved:4;
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+	u32 reserved:3;
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+	u32 extended:1;
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 	u32 dma_ring:1;
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 	u32 internal:1;
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 	u32 msg_complete:1;
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+	u32 extension[];
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 } __packed;
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+
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+/* The length is up to 9 bits */
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+#define MEI_MSG_MAX_LEN_MASK GENMASK(9, 0)
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 struct mei_bus_message {
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 	u8 hbm_cmd;
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-	u8 data[0];
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+	u8 data[];
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 } __packed;
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 /**
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@@ -302,12 +399,26 @@
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 	u8 valid_addresses[32];
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 } __packed;
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401
 
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+/**
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+ * struct mei_client_properties - mei client properties
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+ *
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+ * @protocol_name: guid of the client
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+ * @protocol_version: client protocol version
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+ * @max_number_of_connections: number of possible connections.
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+ * @fixed_address: fixed me address (0 if the client is dynamic)
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+ * @single_recv_buf: 1 if all connections share a single receive buffer.
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+ * @vt_supported: the client support vtag
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+ * @reserved: reserved
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+ * @max_msg_length: MTU of the client
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+ */
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 struct mei_client_properties {
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 	uuid_le protocol_name;
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 	u8 protocol_version;
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 	u8 max_number_of_connections;
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 	u8 fixed_address;
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-	u8 single_recv_buf;
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+	u8 single_recv_buf:1;
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+	u8 vt_supported:1;
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+	u8 reserved:6;
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 	u32 max_msg_length;
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 } __packed;
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@@ -321,7 +432,7 @@
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 	u8 hbm_cmd;
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 	u8 me_addr;
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 	u8 status;
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-	u8 reserved[1];
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+	u8 reserved;
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 	struct mei_client_properties client_properties;
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 } __packed;
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@@ -354,7 +465,7 @@
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 	u8 hbm_cmd;
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 	u8 me_addr;
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 	u8 status;
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-	u8 reserved[1];
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+	u8 reserved;
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 } __packed;
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 /**
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@@ -463,7 +574,7 @@
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 	u8 hbm_cmd;
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 	u8 me_addr;
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 	u8 host_addr;
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-	u8 reserved[1];
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+	u8 reserved;
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 } __packed;
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 /**
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@@ -512,4 +623,52 @@
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 	u8 reserved[2];
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 } __packed;
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+/**
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+ * struct mei_dma_ring_ctrl - dma ring control block
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+ *
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+ * @hbuf_wr_idx: host circular buffer write index in slots
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+ * @reserved1: reserved for alignment
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+ * @hbuf_rd_idx: host circular buffer read index in slots
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+ * @reserved2: reserved for alignment
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+ * @dbuf_wr_idx: device circular buffer write index in slots
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+ * @reserved3: reserved for alignment
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+ * @dbuf_rd_idx: device circular buffer read index in slots
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+ * @reserved4: reserved for alignment
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+ */
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+struct hbm_dma_ring_ctrl {
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+	u32 hbuf_wr_idx;
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+	u32 reserved1;
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+	u32 hbuf_rd_idx;
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+	u32 reserved2;
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+	u32 dbuf_wr_idx;
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+	u32 reserved3;
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+	u32 dbuf_rd_idx;
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+	u32 reserved4;
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+} __packed;
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+
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+/* virtual tag supported */
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+#define HBM_CAP_VT BIT(0)
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+
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+/**
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+ * struct hbm_capability_request - capability request from host to fw
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+ *
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+ * @hbm_cmd : bus message command header
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+ * @capability_requested: bitmask of capabilities requested by host
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+ */
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+struct hbm_capability_request {
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+	u8 hbm_cmd;
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+	u8 capability_requested[3];
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+} __packed;
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+
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+/**
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+ * struct hbm_capability_response - capability response from fw to host
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+ *
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+ * @hbm_cmd : bus message command header
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+ * @capability_granted: bitmask of capabilities granted by FW
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+ */
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+struct hbm_capability_response {
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+	u8 hbm_cmd;
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+	u8 capability_granted[3];
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+} __packed;
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+
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 #endif