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81 lines
2.6 KiB
81 lines
2.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved. |
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*/ |
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#ifndef __SOC_QCOM_TCS_H__ |
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#define __SOC_QCOM_TCS_H__ |
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#define MAX_RPMH_PAYLOAD 16 |
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/** |
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* rpmh_state: state for the request |
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* |
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* RPMH_SLEEP_STATE: State of the resource when the processor subsystem |
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* is powered down. There is no client using the |
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* resource actively. |
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* RPMH_WAKE_ONLY_STATE: Resume resource state to the value previously |
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* requested before the processor was powered down. |
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* RPMH_ACTIVE_ONLY_STATE: Active or AMC mode requests. Resource state |
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* is aggregated immediately. |
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*/ |
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enum rpmh_state { |
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RPMH_SLEEP_STATE, |
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RPMH_WAKE_ONLY_STATE, |
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RPMH_ACTIVE_ONLY_STATE, |
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}; |
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/** |
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* struct tcs_cmd: an individual request to RPMH. |
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* |
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* @addr: the address of the resource slv_id:18:16 | offset:0:15 |
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* @data: the resource state request |
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* @wait: ensure that this command is complete before returning. |
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* Setting "wait" here only makes sense during rpmh_write_batch() for |
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* active-only transfers, this is because: |
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* rpmh_write() - Always waits. |
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* (DEFINE_RPMH_MSG_ONSTACK will set .wait_for_compl) |
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* rpmh_write_async() - Never waits. |
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* (There's no request completion callback) |
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*/ |
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struct tcs_cmd { |
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u32 addr; |
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u32 data; |
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u32 wait; |
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}; |
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/** |
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* struct tcs_request: A set of tcs_cmds sent together in a TCS |
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* |
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* @state: state for the request. |
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* @wait_for_compl: wait until we get a response from the h/w accelerator |
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* (same as setting cmd->wait for all commands in the request) |
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* @num_cmds: the number of @cmds in this request |
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* @cmds: an array of tcs_cmds |
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*/ |
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struct tcs_request { |
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enum rpmh_state state; |
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u32 wait_for_compl; |
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u32 num_cmds; |
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struct tcs_cmd *cmds; |
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}; |
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#define BCM_TCS_CMD_COMMIT_SHFT 30 |
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#define BCM_TCS_CMD_COMMIT_MASK 0x40000000 |
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#define BCM_TCS_CMD_VALID_SHFT 29 |
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#define BCM_TCS_CMD_VALID_MASK 0x20000000 |
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#define BCM_TCS_CMD_VOTE_X_SHFT 14 |
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#define BCM_TCS_CMD_VOTE_MASK 0x3fff |
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#define BCM_TCS_CMD_VOTE_Y_SHFT 0 |
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#define BCM_TCS_CMD_VOTE_Y_MASK 0xfffc000 |
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/* Construct a Bus Clock Manager (BCM) specific TCS command */ |
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#define BCM_TCS_CMD(commit, valid, vote_x, vote_y) \ |
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(((commit) << BCM_TCS_CMD_COMMIT_SHFT) | \ |
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((valid) << BCM_TCS_CMD_VALID_SHFT) | \ |
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((cpu_to_le32(vote_x) & \ |
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BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_X_SHFT) | \ |
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((cpu_to_le32(vote_y) & \ |
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BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_Y_SHFT)) |
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#endif /* __SOC_QCOM_TCS_H__ */
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