c8817de47e
Send all the frequency performance levels in KHz units to TZ driver and convert all the bandwidth recommendations to Bytes/s from Kbytes/s to accomodate change in the syscall interface calls to TZ SPDM driver. Change-Id: I209ea0583fdd43f78f51793d7818ea5afd5959c7 Signed-off-by: Dilip Kota <dkota@codeaurora.org> Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>
130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/*
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*Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
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*
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*This program is free software; you can redistribute it and/or modify
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*it under the terms of the GNU General Public License version 2 and
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*only version 2 as published by the Free Software Foundation.
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*
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*This program is distributed in the hope that it will be useful,
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*but WITHOUT ANY WARRANTY; without even the implied warranty of
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*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*GNU General Public License for more details.
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*/
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#ifndef DEVFREQ_SPDM_H
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#define DEVFREQ_SPDM_H
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#include <linux/list.h>
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#include <soc/qcom/hvc.h>
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#include <soc/qcom/scm.h>
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enum pl_levels { SPDM_PL1, SPDM_PL2, SPDM_PL3, SPDM_PL_COUNT };
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enum actions { SPDM_UP, SPDM_DOWN };
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enum spdm_client { SPDM_CLIENT_CPU, SPDM_CLIENT_GPU, SPDM_CLIENT_COUNT };
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struct spdm_config_data {
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/* in MB/s */
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u32 upstep;
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u32 downstep;
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u32 up_step_multp;
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u32 num_ports;
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u32 *ports;
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u32 aup;
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u32 adown;
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u32 bucket_size;
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/*
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* If We define n PL levels we need n-1 frequencies to tell
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* where to change from one pl to another
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*/
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/* hz */
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u32 pl_freqs[SPDM_PL_COUNT - 1];
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/*
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* We have a low threshold and a high threhold for each pl to support
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* the two port solution so we need twice as many entries as
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* performance levels
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*/
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/* in 100th's of a percent */
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u32 reject_rate[SPDM_PL_COUNT * 2];
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u32 response_time_us[SPDM_PL_COUNT * 2];
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u32 cci_response_time_us[SPDM_PL_COUNT * 2];
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/* hz */
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u32 max_cci_freq;
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/* in MB/s */
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u32 max_vote;
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};
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struct spdm_data {
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/* bus scaling data */
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int cur_idx;
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struct msm_bus_scale_pdata *pdata;
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u32 bus_scale_client_id;
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/* in mb/s */
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u32 new_bw;
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/* devfreq data */
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struct devfreq *devfreq;
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struct devfreq_dev_profile *profile;
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unsigned long action;
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int window;
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struct clk *cci_clk;
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/* spdm hw/gov data */
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struct spdm_config_data config_data;
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enum spdm_client spdm_client;
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/* list used by governor to keep track of spdm devices */
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struct list_head list;
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struct dentry *debugfs_dir;
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bool enabled;
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};
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extern void spdm_init_debugfs(struct device *dev);
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extern void spdm_remove_debugfs(struct spdm_data *data);
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#define SPDM_HYP_FNID 5
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#define SPDM_SCM_SVC_ID 0x9
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#define SPDM_SCM_CMD_ID 0x4
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#define SPDM_TZ_VERSION 0x20000 /* TZ SPDM driver version */
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/* SPDM CMD ID's for hypervisor/SCM */
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#define SPDM_CMD_GET_VERSION 0
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#define SPDM_CMD_GET_BW_ALL 1
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#define SPDM_CMD_GET_BW_SPECIFIC 2
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#define SPDM_CMD_ENABLE 3
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#define SPDM_CMD_DISABLE 4
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#define SPDM_CMD_CFG_PORTS 5
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#define SPDM_CMD_CFG_FLTR 6
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#define SPDM_CMD_CFG_PL 7
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#define SPDM_CMD_CFG_REJRATE_LOW 8
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#define SPDM_CMD_CFG_REJRATE_MED 9
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#define SPDM_CMD_CFG_REJRATE_HIGH 10
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#define SPDM_CMD_CFG_RESPTIME_LOW 11
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#define SPDM_CMD_CFG_RESPTIME_MED 12
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#define SPDM_CMD_CFG_RESPTIME_HIGH 13
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#define SPDM_CMD_CFG_CCIRESPTIME_LOW 14
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#define SPDM_CMD_CFG_CCIRESPTIME_MED 15
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#define SPDM_CMD_CFG_CCIRESPTIME_HIGH 16
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#define SPDM_CMD_CFG_MAXCCI 17
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#define SPDM_CMD_CFG_VOTES 18
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#define SPDM_MAX_ARGS 6
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#define SPDM_MAX_RETS 3
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struct spdm_args {
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u64 arg[SPDM_MAX_ARGS];
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u64 ret[SPDM_MAX_RETS];
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};
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extern int __spdm_hyp_call(struct spdm_args *args, int num_args);
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extern int __spdm_scm_call(struct spdm_args *args, int num_args);
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#ifdef CONFIG_SPDM_SCM
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#define spdm_ext_call __spdm_scm_call
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#else
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#define spdm_ext_call __spdm_hyp_call
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#endif
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#endif
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