projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 9b9ad70f MDA |
1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* | |
| 3 | * PRU-ICSS Subsystem user interfaces | |
| 4 | * | |
| 5 | * Copyright (C) 2015-2022 Texas Instruments Incorporated - http://www.ti.com | |
| 6 | * Suman Anna <s-anna@ti.com> | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef __LINUX_PRUSS_H | |
| 10 | #define __LINUX_PRUSS_H | |
| 11 | ||
| 12 | #include <linux/device.h> | |
| 13 | #include <linux/types.h> | |
| 14 | ||
| 15 | #define PRU_RPROC_DRVNAME "pru-rproc" | |
| 16 | ||
| 17 | /** | |
| 18 | * enum pruss_pru_id - PRU core identifiers | |
| 19 | * @PRUSS_PRU0: PRU Core 0. | |
| 20 | * @PRUSS_PRU1: PRU Core 1. | |
| 21 | * @PRUSS_NUM_PRUS: Total number of PRU Cores available. | |
| 22 | * | |
| 23 | */ | |
| 24 | ||
| 25 | enum pruss_pru_id { | |
| 26 | PRUSS_PRU0 = 0, | |
| 27 | PRUSS_PRU1, | |
| 28 | PRUSS_NUM_PRUS, | |
| 29 | }; | |
| 30 | ||
| 10285340 RQ |
31 | /* |
| 32 | * enum pru_ctable_idx - Configurable Constant table index identifiers | |
| 33 | */ | |
| 34 | enum pru_ctable_idx { | |
| 35 | PRU_C24 = 0, | |
| 36 | PRU_C25, | |
| 37 | PRU_C26, | |
| 38 | PRU_C27, | |
| 39 | PRU_C28, | |
| 40 | PRU_C29, | |
| 41 | PRU_C30, | |
| 42 | PRU_C31, | |
| 43 | }; | |
| 44 | ||
| 919e8942 | 45 | struct device_node; |
| 10285340 | 46 | struct rproc; |
| 919e8942 MDA |
47 | |
| 48 | #if IS_ENABLED(CONFIG_PRU_REMOTEPROC) | |
| 49 | ||
| 50 | struct rproc *pru_rproc_get(struct device_node *np, int index, | |
| 51 | enum pruss_pru_id *pru_id); | |
| 52 | void pru_rproc_put(struct rproc *rproc); | |
| 10285340 | 53 | int pru_rproc_set_ctable(struct rproc *rproc, enum pru_ctable_idx c, u32 addr); |
| 919e8942 MDA |
54 | |
| 55 | #else | |
| 56 | ||
| 57 | static inline struct rproc * | |
| 58 | pru_rproc_get(struct device_node *np, int index, enum pruss_pru_id *pru_id) | |
| 59 | { | |
| 60 | return ERR_PTR(-EOPNOTSUPP); | |
| 61 | } | |
| 62 | ||
| 63 | static inline void pru_rproc_put(struct rproc *rproc) { } | |
| 64 | ||
| 10285340 RQ |
65 | static inline int pru_rproc_set_ctable(struct rproc *rproc, |
| 66 | enum pru_ctable_idx c, u32 addr) | |
| 67 | { | |
| 68 | return -EOPNOTSUPP; | |
| 69 | } | |
| 70 | ||
| 919e8942 MDA |
71 | #endif /* CONFIG_PRU_REMOTEPROC */ |
| 72 | ||
| 73 | static inline bool is_pru_rproc(struct device *dev) | |
| 74 | { | |
| 75 | const char *drv_name = dev_driver_string(dev); | |
| 76 | ||
| 77 | if (strncmp(drv_name, PRU_RPROC_DRVNAME, sizeof(PRU_RPROC_DRVNAME))) | |
| 78 | return false; | |
| 79 | ||
| 80 | return true; | |
| 81 | } | |
| 82 | ||
| 9b9ad70f | 83 | #endif /* __LINUX_PRUSS_H */ |