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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2017 The Linux Foundation. All rights reserved. */
#ifndef _A6XX_HFI_H_
#define _A6XX_HFI_H_
struct a6xx_hfi_queue_table_header {
u32 version;
u32 size; /* Size of the queue table in dwords */
u32 qhdr0_offset; /* Offset of the first queue header */
u32 qhdr_size; /* Size of the queue headers */
u32 num_queues; /* Number of total queues */
u32 active_queues; /* Number of active queues */
};
struct a6xx_hfi_queue_header {
u32 status;
u32 iova;
u32 type;
u32 size;
u32 msg_size;
u32 dropped;
u32 rx_watermark;
u32 tx_watermark;
u32 rx_request;
u32 tx_request;
u32 read_index;
u32 write_index;
};
struct a6xx_hfi_queue {
struct a6xx_hfi_queue_header *header;
spinlock_t lock;
u32 *data;
atomic_t seqnum;
/*
* Tracking for the start index of the last N messages in the
* queue, for the benefit of devcore dump / crashdec (since
* parsing in the reverse direction to decode the last N
* messages is difficult to do and would rely on heuristics
* which are not guaranteed to be correct)
*/
#define HFI_HISTORY_SZ 8
s32 history[HFI_HISTORY_SZ];
u8 history_idx;
};
/* This is the outgoing queue to the GMU */
#define HFI_COMMAND_QUEUE 0
/* THis is the incoming response queue from the GMU */
#define HFI_RESPONSE_QUEUE 1
#define HFI_HEADER_ID(msg) ((msg) & 0xff)
#define HFI_HEADER_SIZE(msg) (((msg) >> 8) & 0xff)
#define HFI_HEADER_SEQNUM(msg) (((msg) >> 20) & 0xfff)
/* FIXME: Do we need this or can we use ARRAY_SIZE? */
#define HFI_RESPONSE_PAYLOAD_SIZE 16
/* HFI message types */
#define HFI_MSG_CMD 0
#define HFI_MSG_ACK 1
#define HFI_MSG_ACK_V1 2
#define HFI_F2H_MSG_ACK 126
struct a6xx_hfi_msg_response {
u32 header;
u32 ret_header;
u32 error;
u32 payload[HFI_RESPONSE_PAYLOAD_SIZE];
};
#define HFI_F2H_MSG_ERROR 100
struct a6xx_hfi_msg_error {
u32 header;
u32 code;
u32 payload[2];
};
#define HFI_H2F_MSG_INIT 0
struct a6xx_hfi_msg_gmu_init_cmd {
u32 header;
u32 seg_id;
u32 dbg_buffer_addr;
u32 dbg_buffer_size;
u32 boot_state;
};
#define HFI_H2F_MSG_FW_VERSION 1
struct a6xx_hfi_msg_fw_version {
u32 header;
u32 supported_version;
};
#define HFI_H2F_MSG_PERF_TABLE 4
struct perf_level {
u32 vote;
u32 freq;
};
struct perf_gx_level {
u32 vote;
u32 acd;
u32 freq;
};
struct a6xx_hfi_msg_perf_table_v1 {
u32 header;
u32 num_gpu_levels;
u32 num_gmu_levels;
struct perf_level gx_votes[16];
struct perf_level cx_votes[4];
};
struct a6xx_hfi_msg_perf_table {
u32 header;
u32 num_gpu_levels;
u32 num_gmu_levels;
struct perf_gx_level gx_votes[16];
struct perf_level cx_votes[4];
};
#define HFI_H2F_MSG_BW_TABLE 3
struct a6xx_hfi_msg_bw_table {
u32 header;
u32 bw_level_num;
u32 cnoc_cmds_num;
u32 ddr_cmds_num;
u32 cnoc_wait_bitmask;
u32 ddr_wait_bitmask;
u32 cnoc_cmds_addrs[6];
u32 cnoc_cmds_data[2][6];
u32 ddr_cmds_addrs[8];
u32 ddr_cmds_data[16][8];
};
#define HFI_H2F_MSG_TEST 5
struct a6xx_hfi_msg_test {
u32 header;
};
#define HFI_H2F_MSG_START 10
struct a6xx_hfi_msg_start {
u32 header;
};
#define HFI_H2F_MSG_CORE_FW_START 14
struct a6xx_hfi_msg_core_fw_start {
u32 header;
u32 handle;
};
#define HFI_H2F_MSG_GX_BW_PERF_VOTE 30
struct a6xx_hfi_gx_bw_perf_vote_cmd {
u32 header;
u32 ack_type;
u32 freq;
u32 bw;
};
#define HFI_H2F_MSG_PREPARE_SLUMBER 33
struct a6xx_hfi_prep_slumber_cmd {
u32 header;
u32 bw;
u32 freq;
};
#endif
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