100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
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/*
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* Copyright (c) 2013-2018, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _DRIVERS_BPMP_H
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#define _DRIVERS_BPMP_H
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#include <linux/debugfs.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <soc/tegra/bpmp_abi.h>
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#include <soc/tegra/tegra_bpmp.h>
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#define NR_MAX_CHANNELS 14
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#define DO_ACK (1 << 0)
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#define RING_DOORBELL (1 << 1)
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struct channel_cfg {
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unsigned int channel_mask;
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unsigned int per_cpu_ch_0;
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unsigned int per_cpu_ch_cnt;
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unsigned int thread_ch_0;
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unsigned int thread_ch_cnt;
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unsigned int ib_ch_0;
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unsigned int ib_ch_cnt;
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};
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struct fops_entry {
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char *name;
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const struct file_operations *fops;
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mode_t mode;
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};
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struct mb_data {
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int32_t code;
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int32_t flags;
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u8 data[MSG_DATA_MIN_SZ];
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} __packed;
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struct channel_data {
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struct mb_data *ib;
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struct mb_data *ob;
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};
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struct mail_ops {
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int (*init_prepare)(void);
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int (*init_irq)(unsigned int cnt);
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int (*connect)(const struct channel_cfg *cfg,
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const struct mail_ops *ops,
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struct device_node *of_node);
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void (*resume)(void);
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void (*suspend)(void);
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struct ivc *(*ivc_obj)(int ch);
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bool (*master_free)(const struct mail_ops *ops, int ch);
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void (*free_master)(const struct mail_ops *ops, int ch);
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bool (*master_acked)(const struct mail_ops *ops, int ch);
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void (*signal_slave)(const struct mail_ops *ops, int ch);
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bool (*slave_signalled)(const struct mail_ops *ops, int ch);
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void (*ring_doorbell)(int ch);
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void (*return_data)(const struct mail_ops *ops, int ch,
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int code, void *data, int sz);
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};
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extern const struct mail_ops t210_mail_ops;
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extern const struct mail_ops t186_native_mail_ops;
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extern const struct mail_ops t186_hv_mail_ops;
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extern struct channel_data channel_area[NR_MAX_CHANNELS];
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extern char firmware_tag[sizeof(struct mrq_query_fw_tag_response)];
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struct dentry *bpmp_init_debug(struct platform_device *pdev);
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int bpmp_init_cpuidle_debug(struct dentry *root);
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int bpmp_mail_init(const struct channel_cfg *cfg,
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const struct mail_ops *ops, struct device_node *of_node);
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int __bpmp_do_ping(void);
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int bpmp_create_attrs(const struct fops_entry *fent, struct dentry *parent,
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void *data);
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int bpmp_mailman_init(void);
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void bpmp_handle_mail(int mrq, int ch);
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void tegra_bpmp_resume(void);
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int tegra_bpmp_suspend(void);
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void bpmp_handle_irq(unsigned int chidx);
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#endif
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