1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * Copyright (c) 2016-2019, The Linux Foundati !! 3 * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
4 */ 4 */
5 5
6 #ifndef __SOC_QCOM_TCS_H__ 6 #ifndef __SOC_QCOM_TCS_H__
7 #define __SOC_QCOM_TCS_H__ 7 #define __SOC_QCOM_TCS_H__
8 8
9 #define MAX_RPMH_PAYLOAD 16 9 #define MAX_RPMH_PAYLOAD 16
10 10
11 /** 11 /**
12 * rpmh_state: state for the request 12 * rpmh_state: state for the request
13 * 13 *
14 * RPMH_SLEEP_STATE: State of the resour 14 * RPMH_SLEEP_STATE: State of the resource when the processor subsystem
15 * is powered down. Th 15 * is powered down. There is no client using the
16 * resource actively. 16 * resource actively.
17 * RPMH_WAKE_ONLY_STATE: Resume resource sta 17 * RPMH_WAKE_ONLY_STATE: Resume resource state to the value previously
18 * requested before th 18 * requested before the processor was powered down.
19 * RPMH_ACTIVE_ONLY_STATE: Active or AMC mode 19 * RPMH_ACTIVE_ONLY_STATE: Active or AMC mode requests. Resource state
20 * is aggregated immed 20 * is aggregated immediately.
21 */ 21 */
22 enum rpmh_state { 22 enum rpmh_state {
23 RPMH_SLEEP_STATE, 23 RPMH_SLEEP_STATE,
24 RPMH_WAKE_ONLY_STATE, 24 RPMH_WAKE_ONLY_STATE,
25 RPMH_ACTIVE_ONLY_STATE, 25 RPMH_ACTIVE_ONLY_STATE,
26 }; 26 };
27 27
28 /** 28 /**
29 * struct tcs_cmd: an individual request to RP 29 * struct tcs_cmd: an individual request to RPMH.
30 * 30 *
31 * @addr: the address of the resource slv_id:1 31 * @addr: the address of the resource slv_id:18:16 | offset:0:15
32 * @data: the resource state request 32 * @data: the resource state request
33 * @wait: ensure that this command is complete !! 33 * @wait: wait for this request to be complete before sending the next
34 * Setting "wait" here only makes sense <<
35 * active-only transfers, this is becau <<
36 * rpmh_write() - Always waits. <<
37 * (DEFINE_RPMH_MSG_ONST <<
38 * rpmh_write_async() - Never waits. <<
39 * (There's no request c <<
40 */ 34 */
41 struct tcs_cmd { 35 struct tcs_cmd {
42 u32 addr; 36 u32 addr;
43 u32 data; 37 u32 data;
44 u32 wait; 38 u32 wait;
45 }; 39 };
46 40
47 /** 41 /**
48 * struct tcs_request: A set of tcs_cmds sent 42 * struct tcs_request: A set of tcs_cmds sent together in a TCS
49 * 43 *
50 * @state: state for the request. 44 * @state: state for the request.
51 * @wait_for_compl: wait until we get a respon 45 * @wait_for_compl: wait until we get a response from the h/w accelerator
52 * (same as setting cmd->wait <<
53 * @num_cmds: the number of @cmds in thi 46 * @num_cmds: the number of @cmds in this request
54 * @cmds: an array of tcs_cmds 47 * @cmds: an array of tcs_cmds
55 */ 48 */
56 struct tcs_request { 49 struct tcs_request {
57 enum rpmh_state state; 50 enum rpmh_state state;
58 u32 wait_for_compl; 51 u32 wait_for_compl;
59 u32 num_cmds; 52 u32 num_cmds;
60 struct tcs_cmd *cmds; 53 struct tcs_cmd *cmds;
61 }; 54 };
62 <<
63 #define BCM_TCS_CMD_COMMIT_SHFT 30 <<
64 #define BCM_TCS_CMD_COMMIT_MASK 0x4000 <<
65 #define BCM_TCS_CMD_VALID_SHFT 29 <<
66 #define BCM_TCS_CMD_VALID_MASK 0x2000 <<
67 #define BCM_TCS_CMD_VOTE_X_SHFT 14 <<
68 #define BCM_TCS_CMD_VOTE_MASK 0x3fff <<
69 #define BCM_TCS_CMD_VOTE_Y_SHFT 0 <<
70 #define BCM_TCS_CMD_VOTE_Y_MASK 0xfffc <<
71 <<
72 /* Construct a Bus Clock Manager (BCM) specifi <<
73 #define BCM_TCS_CMD(commit, valid, vote_x, vot <<
74 (((commit) << BCM_TCS_CMD_COMMIT_SHFT) <<
75 ((valid) << BCM_TCS_CMD_VALID_SHFT) | <<
76 ((cpu_to_le32(vote_x) & <<
77 BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_ <<
78 ((cpu_to_le32(vote_y) & <<
79 BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_ <<
80 55
81 #endif /* __SOC_QCOM_TCS_H__ */ 56 #endif /* __SOC_QCOM_TCS_H__ */
82 57
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