| // SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| /* |
| * The ChipTOD is the HW facility that maintains a synchronized |
| * time base across the fabric. |
| * |
| * Copyright 2013-2019 IBM Corp. |
| */ |
| |
| #ifndef __CHIPTOD_H |
| #define __CHIPTOD_H |
| |
| enum chiptod_topology { |
| chiptod_topo_unknown = -1, |
| chiptod_topo_primary = 0, |
| chiptod_topo_secondary = 1, |
| }; |
| |
| extern void chiptod_init(void); |
| extern bool chiptod_wakeup_resync(void); |
| extern int chiptod_recover_tb_errors(bool *out_resynced); |
| extern bool tfmr_recover_local_errors(uint64_t tfmr); |
| extern bool recover_corrupt_tfmr(void); |
| extern void tfmr_cleanup_core_errors(uint64_t tfmr); |
| extern int tfmr_clear_core_errors(uint64_t tfmr); |
| extern bool chiptod_adjust_topology(enum chiptod_topology topo, bool enable); |
| extern bool chiptod_capp_timebase_sync(unsigned int chip_id, uint32_t tfmr_addr, |
| uint32_t tb_addr, uint32_t offset); |
| extern int chiptod_recover_tod_errors(void); |
| |
| #endif /* __CHIPTOD_H */ |