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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t7xx_port_proxy.h (2776B)

      1/* SPDX-License-Identifier: GPL-2.0-only
      2 *
      3 * Copyright (c) 2021, MediaTek Inc.
      4 * Copyright (c) 2021-2022, Intel Corporation.
      5 *
      6 * Authors:
      7 *  Amir Hanania <amir.hanania@intel.com>
      8 *  Haijun Liu <haijun.liu@mediatek.com>
      9 *  Moises Veleta <moises.veleta@intel.com>
     10 *  Ricardo Martinez <ricardo.martinez@linux.intel.com>
     11 *
     12 * Contributors:
     13 *  Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
     14 *  Eliot Lee <eliot.lee@intel.com>
     15 *  Sreehari Kancharla <sreehari.kancharla@intel.com>
     16 */
     17
     18#ifndef __T7XX_PORT_PROXY_H__
     19#define __T7XX_PORT_PROXY_H__
     20
     21#include <linux/bits.h>
     22#include <linux/device.h>
     23#include <linux/skbuff.h>
     24#include <linux/types.h>
     25
     26#include "t7xx_hif_cldma.h"
     27#include "t7xx_modem_ops.h"
     28#include "t7xx_port.h"
     29
     30#define MTK_QUEUES		16
     31#define RX_QUEUE_MAXLEN		32
     32#define CTRL_QUEUE_MAXLEN	16
     33
     34struct port_proxy {
     35	int			port_count;
     36	struct list_head	rx_ch_ports[PORT_CH_ID_MASK + 1];
     37	struct list_head	queue_ports[CLDMA_NUM][MTK_QUEUES];
     38	struct device		*dev;
     39	struct t7xx_port	ports[];
     40};
     41
     42struct ccci_header {
     43	__le32 packet_header;
     44	__le32 packet_len;
     45	__le32 status;
     46	__le32 ex_msg;
     47};
     48
     49/* Coupled with HW - indicates if there is data following the CCCI header or not */
     50#define CCCI_HEADER_NO_DATA	0xffffffff
     51
     52#define CCCI_H_AST_BIT		BIT(31)
     53#define CCCI_H_SEQ_FLD		GENMASK(30, 16)
     54#define CCCI_H_CHN_FLD		GENMASK(15, 0)
     55
     56struct ctrl_msg_header {
     57	__le32	ctrl_msg_id;
     58	__le32	ex_msg;
     59	__le32	data_length;
     60};
     61
     62/* Control identification numbers for AP<->MD messages  */
     63#define CTL_ID_HS1_MSG		0x0
     64#define CTL_ID_HS2_MSG		0x1
     65#define CTL_ID_HS3_MSG		0x2
     66#define CTL_ID_MD_EX		0x4
     67#define CTL_ID_DRV_VER_ERROR	0x5
     68#define CTL_ID_MD_EX_ACK	0x6
     69#define CTL_ID_MD_EX_PASS	0x8
     70#define CTL_ID_PORT_ENUM	0x9
     71
     72/* Modem exception check identification code - "EXCP" */
     73#define MD_EX_CHK_ID		0x45584350
     74/* Modem exception check acknowledge identification code - "EREC" */
     75#define MD_EX_CHK_ACK_ID	0x45524543
     76
     77#define PORT_INFO_RSRVD		GENMASK(31, 16)
     78#define PORT_INFO_ENFLG		BIT(15)
     79#define PORT_INFO_CH_ID		GENMASK(14, 0)
     80
     81#define PORT_ENUM_VER		0
     82#define PORT_ENUM_HEAD_PATTERN	0x5a5a5a5a
     83#define PORT_ENUM_TAIL_PATTERN	0xa5a5a5a5
     84#define PORT_ENUM_VER_MISMATCH	0x00657272
     85
     86/* Port operations mapping */
     87extern struct port_ops wwan_sub_port_ops;
     88extern struct port_ops ctl_port_ops;
     89
     90void t7xx_port_proxy_reset(struct port_proxy *port_prox);
     91void t7xx_port_proxy_uninit(struct port_proxy *port_prox);
     92int t7xx_port_proxy_init(struct t7xx_modem *md);
     93void t7xx_port_proxy_md_status_notify(struct port_proxy *port_prox, unsigned int state);
     94int t7xx_port_enum_msg_handler(struct t7xx_modem *md, void *msg);
     95int t7xx_port_proxy_chl_enable_disable(struct port_proxy *port_prox, unsigned int ch_id,
     96				       bool en_flag);
     97
     98#endif /* __T7XX_PORT_PROXY_H__ */