101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
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/*
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* Copyright (c) 2014-2018, 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 _LINUX_TEGRA_HSP_H
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#define _LINUX_TEGRA_HSP_H
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#include <linux/types.h>
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enum tegra_hsp_master {
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HSP_FIRST_MASTER = 1,
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/* secure */
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HSP_MASTER_SECURE_CCPLEX = HSP_FIRST_MASTER,
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HSP_MASTER_SECURE_DPMU,
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HSP_MASTER_SECURE_BPMP,
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HSP_MASTER_SECURE_SPE,
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HSP_MASTER_SECURE_SCE,
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HSP_MASTER_SECURE_DMA,
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HSP_MASTER_SECURE_TSECA,
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HSP_MASTER_SECURE_TSECB,
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HSP_MASTER_SECURE_JTAGM,
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HSP_MASTER_SECURE_CSITE,
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HSP_MASTER_SECURE_APE,
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/* non-secure */
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HSP_MASTER_CCPLEX = HSP_FIRST_MASTER + 16,
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HSP_MASTER_DPMU,
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HSP_MASTER_BPMP,
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HSP_MASTER_SPE,
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HSP_MASTER_SCE,
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HSP_MASTER_DMA,
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HSP_MASTER_TSECA,
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HSP_MASTER_TSECB,
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HSP_MASTER_JTAGM,
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HSP_MASTER_CSITE,
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HSP_MASTER_APE,
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HSP_LAST_MASTER = HSP_MASTER_APE,
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};
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enum tegra_hsp_doorbell {
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HSP_FIRST_DB = 0,
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HSP_DB_DPMU = HSP_FIRST_DB,
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HSP_DB_CCPLEX,
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HSP_DB_CCPLEX_TZ,
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HSP_DB_BPMP,
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HSP_DB_SPE,
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HSP_DB_SCE,
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HSP_DB_APE,
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HSP_LAST_DB = HSP_DB_APE,
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HSP_NR_DBS,
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};
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typedef void (*db_handler_t)(void *data);
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int tegra_hsp_init(void);
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int tegra_hsp_db_enable_master(enum tegra_hsp_master master);
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int tegra_hsp_db_disable_master(enum tegra_hsp_master master);
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int tegra_hsp_db_ring(enum tegra_hsp_doorbell dbell);
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int tegra_hsp_db_can_ring(enum tegra_hsp_doorbell dbell);
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int tegra_hsp_db_add_handler(int master, db_handler_t handler, void *data);
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int tegra_hsp_db_del_handler(int master);
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#define tegra_hsp_find_master(mask, master) ((mask) & (1 << (master)))
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struct tegra_hsp_sm_pair;
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typedef u32 (*tegra_hsp_sm_full_fn)(void *, u32);
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typedef void (*tegra_hsp_sm_empty_fn)(void *, u32);
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struct tegra_hsp_sm_pair *of_tegra_hsp_sm_pair_request(
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const struct device_node *np, u32 index,
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tegra_hsp_sm_full_fn, tegra_hsp_sm_empty_fn, void *);
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struct tegra_hsp_sm_pair *of_tegra_hsp_sm_pair_by_name(
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struct device_node *np, char const *name,
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tegra_hsp_sm_full_fn, tegra_hsp_sm_empty_fn, void *);
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void tegra_hsp_sm_pair_free(struct tegra_hsp_sm_pair *);
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void tegra_hsp_sm_pair_write(struct tegra_hsp_sm_pair *, u32 value);
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bool tegra_hsp_sm_pair_is_empty(const struct tegra_hsp_sm_pair *);
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#endif
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