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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mmsch_v1_0.h (4903B)


      1/*
      2 * Copyright 2017 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 */
     23
     24#ifndef __MMSCH_V1_0_H__
     25#define __MMSCH_V1_0_H__
     26
     27#define MMSCH_VERSION	0x1
     28
     29enum mmsch_v1_0_command_type {
     30	MMSCH_COMMAND__DIRECT_REG_WRITE = 0,
     31	MMSCH_COMMAND__DIRECT_REG_POLLING = 2,
     32	MMSCH_COMMAND__DIRECT_REG_READ_MODIFY_WRITE = 3,
     33	MMSCH_COMMAND__INDIRECT_REG_WRITE = 8,
     34	MMSCH_COMMAND__END = 0xf
     35};
     36
     37struct mmsch_v1_0_init_header {
     38	uint32_t version;
     39	uint32_t header_size;
     40	uint32_t vce_init_status;
     41	uint32_t uvd_init_status;
     42	uint32_t vce_table_offset;
     43	uint32_t vce_table_size;
     44	uint32_t uvd_table_offset;
     45	uint32_t uvd_table_size;
     46};
     47
     48struct mmsch_vf_eng_init_header {
     49	uint32_t init_status;
     50	uint32_t table_offset;
     51	uint32_t table_size;
     52};
     53
     54struct mmsch_v1_1_init_header {
     55	uint32_t version;
     56	uint32_t total_size;
     57	struct mmsch_vf_eng_init_header eng[2];
     58};
     59
     60struct mmsch_v1_0_cmd_direct_reg_header {
     61	uint32_t reg_offset   : 28;
     62	uint32_t command_type : 4;
     63};
     64
     65struct mmsch_v1_0_cmd_indirect_reg_header {
     66	uint32_t reg_offset    : 20;
     67	uint32_t reg_idx_space : 8;
     68	uint32_t command_type  : 4;
     69};
     70
     71struct mmsch_v1_0_cmd_direct_write {
     72	struct mmsch_v1_0_cmd_direct_reg_header cmd_header;
     73	uint32_t reg_value;
     74};
     75
     76struct mmsch_v1_0_cmd_direct_read_modify_write {
     77	struct mmsch_v1_0_cmd_direct_reg_header cmd_header;
     78	uint32_t write_data;
     79	uint32_t mask_value;
     80};
     81
     82struct mmsch_v1_0_cmd_direct_polling {
     83	struct mmsch_v1_0_cmd_direct_reg_header cmd_header;
     84	uint32_t mask_value;
     85	uint32_t wait_value;
     86};
     87
     88struct mmsch_v1_0_cmd_end {
     89	struct mmsch_v1_0_cmd_direct_reg_header cmd_header;
     90};
     91
     92struct mmsch_v1_0_cmd_indirect_write {
     93	struct mmsch_v1_0_cmd_indirect_reg_header cmd_header;
     94	uint32_t reg_value;
     95};
     96
     97static inline void mmsch_v1_0_insert_direct_wt(struct mmsch_v1_0_cmd_direct_write *direct_wt,
     98					       uint32_t *init_table,
     99					       uint32_t reg_offset,
    100					       uint32_t value)
    101{
    102	direct_wt->cmd_header.reg_offset = reg_offset;
    103	direct_wt->reg_value = value;
    104	memcpy((void *)init_table, direct_wt, sizeof(struct mmsch_v1_0_cmd_direct_write));
    105}
    106
    107static inline void mmsch_v1_0_insert_direct_rd_mod_wt(struct mmsch_v1_0_cmd_direct_read_modify_write *direct_rd_mod_wt,
    108						      uint32_t *init_table,
    109						      uint32_t reg_offset,
    110						      uint32_t mask, uint32_t data)
    111{
    112	direct_rd_mod_wt->cmd_header.reg_offset = reg_offset;
    113	direct_rd_mod_wt->mask_value = mask;
    114	direct_rd_mod_wt->write_data = data;
    115	memcpy((void *)init_table, direct_rd_mod_wt,
    116	       sizeof(struct mmsch_v1_0_cmd_direct_read_modify_write));
    117}
    118
    119static inline void mmsch_v1_0_insert_direct_poll(struct mmsch_v1_0_cmd_direct_polling *direct_poll,
    120						 uint32_t *init_table,
    121						 uint32_t reg_offset,
    122						 uint32_t mask, uint32_t wait)
    123{
    124	direct_poll->cmd_header.reg_offset = reg_offset;
    125	direct_poll->mask_value = mask;
    126	direct_poll->wait_value = wait;
    127	memcpy((void *)init_table, direct_poll, sizeof(struct mmsch_v1_0_cmd_direct_polling));
    128}
    129
    130#define MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(reg, mask, data) { \
    131	mmsch_v1_0_insert_direct_rd_mod_wt(&direct_rd_mod_wt, \
    132					   init_table, (reg), \
    133					   (mask), (data)); \
    134	init_table += sizeof(struct mmsch_v1_0_cmd_direct_read_modify_write)/4; \
    135	table_size += sizeof(struct mmsch_v1_0_cmd_direct_read_modify_write)/4; \
    136}
    137
    138#define MMSCH_V1_0_INSERT_DIRECT_WT(reg, value) { \
    139	mmsch_v1_0_insert_direct_wt(&direct_wt, \
    140				    init_table, (reg), \
    141				    (value)); \
    142	init_table += sizeof(struct mmsch_v1_0_cmd_direct_write)/4; \
    143	table_size += sizeof(struct mmsch_v1_0_cmd_direct_write)/4; \
    144}
    145
    146#define MMSCH_V1_0_INSERT_DIRECT_POLL(reg, mask, wait) { \
    147	mmsch_v1_0_insert_direct_poll(&direct_poll, \
    148				      init_table, (reg), \
    149				      (mask), (wait)); \
    150	init_table += sizeof(struct mmsch_v1_0_cmd_direct_polling)/4; \
    151	table_size += sizeof(struct mmsch_v1_0_cmd_direct_polling)/4; \
    152}
    153
    154#endif