1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
4 */
5
6 #ifndef __SOC_QCOM_TCS_H__
7 #define __SOC_QCOM_TCS_H__
8
9 #define MAX_RPMH_PAYLOAD 16
10
11 /**
12 * rpmh_state: state for the request
13 *
14 * RPMH_SLEEP_STATE: State of the resource when the processor subsystem
15 * is powered down. There is no client using the
16 * resource actively.
17 * RPMH_WAKE_ONLY_STATE: Resume resource state to the value previously
18 * requested before the processor was powered down.
19 * RPMH_ACTIVE_ONLY_STATE: Active or AMC mode requests. Resource state
20 * is aggregated immediately.
21 */
22 enum rpmh_state {
23 RPMH_SLEEP_STATE,
24 RPMH_WAKE_ONLY_STATE,
25 RPMH_ACTIVE_ONLY_STATE,
26 };
27
28 /**
29 * struct tcs_cmd: an individual request to RPMH.
30 *
31 * @addr: the address of the resource slv_id:18:16 | offset:0:15
32 * @data: the resource state request
33 * @wait: wait for this request to be complete before sending the next
34 */
35 struct tcs_cmd {
36 u32 addr;
37 u32 data;
38 u32 wait;
39 };
40
41 /**
42 * struct tcs_request: A set of tcs_cmds sent together in a TCS
43 *
44 * @state: state for the request.
45 * @wait_for_compl: wait until we get a response from the h/w accelerator
46 * @num_cmds: the number of @cmds in this request
47 * @cmds: an array of tcs_cmds
48 */
49 struct tcs_request {
50 enum rpmh_state state;
51 u32 wait_for_compl;
52 u32 num_cmds;
53 struct tcs_cmd *cmds;
54 };
55
56 #define BCM_TCS_CMD_COMMIT_SHFT 30
57 #define BCM_TCS_CMD_COMMIT_MASK 0x40000000
58 #define BCM_TCS_CMD_VALID_SHFT 29
59 #define BCM_TCS_CMD_VALID_MASK 0x20000000
60 #define BCM_TCS_CMD_VOTE_X_SHFT 14
61 #define BCM_TCS_CMD_VOTE_MASK 0x3fff
62 #define BCM_TCS_CMD_VOTE_Y_SHFT 0
63 #define BCM_TCS_CMD_VOTE_Y_MASK 0xfffc000
64
65 /* Construct a Bus Clock Manager (BCM) specific TCS command */
66 #define BCM_TCS_CMD(commit, valid, vote_x, vote_y) \
67 (((commit) << BCM_TCS_CMD_COMMIT_SHFT) | \
68 ((valid) << BCM_TCS_CMD_VALID_SHFT) | \
69 ((cpu_to_le32(vote_x) & \
70 BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_X_SHFT) | \
71 ((cpu_to_le32(vote_y) & \
72 BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_Y_SHFT))
73
74 #endif /* __SOC_QCOM_TCS_H__ */