cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ice_sbq_cmd.h (1561B)


      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* Copyright (C) 2021, Intel Corporation. */
      3
      4#ifndef _ICE_SBQ_CMD_H_
      5#define _ICE_SBQ_CMD_H_
      6
      7/* This header file defines the Sideband Queue commands, error codes and
      8 * descriptor format. It is shared between Firmware and Software.
      9 */
     10
     11/* Sideband Queue command structure and opcodes */
     12enum ice_sbq_opc {
     13	/* Sideband Queue commands */
     14	ice_sbq_opc_neigh_dev_req			= 0x0C00,
     15	ice_sbq_opc_neigh_dev_ev			= 0x0C01
     16};
     17
     18/* Sideband Queue descriptor. Indirect command
     19 * and non posted
     20 */
     21struct ice_sbq_cmd_desc {
     22	__le16 flags;
     23	__le16 opcode;
     24	__le16 datalen;
     25	__le16 cmd_retval;
     26
     27	/* Opaque message data */
     28	__le32 cookie_high;
     29	__le32 cookie_low;
     30
     31	union {
     32		__le16 cmd_len;
     33		__le16 cmpl_len;
     34	} param0;
     35
     36	u8 reserved[6];
     37	__le32 addr_high;
     38	__le32 addr_low;
     39};
     40
     41struct ice_sbq_evt_desc {
     42	__le16 flags;
     43	__le16 opcode;
     44	__le16 datalen;
     45	__le16 cmd_retval;
     46	u8 data[24];
     47};
     48
     49enum ice_sbq_msg_dev {
     50	rmn_0	= 0x02,
     51	rmn_1	= 0x03,
     52	rmn_2	= 0x04,
     53	cgu	= 0x06
     54};
     55
     56enum ice_sbq_msg_opcode {
     57	ice_sbq_msg_rd	= 0x00,
     58	ice_sbq_msg_wr	= 0x01
     59};
     60
     61#define ICE_SBQ_MSG_FLAGS	0x40
     62#define ICE_SBQ_MSG_SBE_FBE	0x0F
     63
     64struct ice_sbq_msg_req {
     65	u8 dest_dev;
     66	u8 src_dev;
     67	u8 opcode;
     68	u8 flags;
     69	u8 sbe_fbe;
     70	u8 func_id;
     71	__le16 msg_addr_low;
     72	__le32 msg_addr_high;
     73	__le32 data;
     74};
     75
     76struct ice_sbq_msg_cmpl {
     77	u8 dest_dev;
     78	u8 src_dev;
     79	u8 opcode;
     80	u8 flags;
     81	__le32 data;
     82};
     83
     84/* Internal struct */
     85struct ice_sbq_msg_input {
     86	u8 dest_dev;
     87	u8 opcode;
     88	u16 msg_addr_low;
     89	u32 msg_addr_high;
     90	u32 data;
     91};
     92#endif /* _ICE_SBQ_CMD_H_ */