projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| ed69bdd8 LP |
2 | /* |
| 3 | * CCI cache coherent interconnect support | |
| 4 | * | |
| 5 | * Copyright (C) 2013 ARM Ltd. | |
| ed69bdd8 LP |
6 | */ |
| 7 | ||
| 8 | #ifndef __LINUX_ARM_CCI_H | |
| 9 | #define __LINUX_ARM_CCI_H | |
| 10 | ||
| 11 | #include <linux/errno.h> | |
| 12 | #include <linux/types.h> | |
| 13 | ||
| 772742a6 SP |
14 | #include <asm/arm-cci.h> |
| 15 | ||
| ed69bdd8 LP |
16 | struct device_node; |
| 17 | ||
| 18 | #ifdef CONFIG_ARM_CCI | |
| 19 | extern bool cci_probed(void); | |
| ee8e5d5f SP |
20 | #else |
| 21 | static inline bool cci_probed(void) { return false; } | |
| 22 | #endif | |
| 23 | ||
| 24 | #ifdef CONFIG_ARM_CCI400_PORT_CTRL | |
| ed69bdd8 LP |
25 | extern int cci_ace_get_port(struct device_node *dn); |
| 26 | extern int cci_disable_port_by_cpu(u64 mpidr); | |
| 27 | extern int __cci_control_port_by_device(struct device_node *dn, bool enable); | |
| 28 | extern int __cci_control_port_by_index(u32 port, bool enable); | |
| 29 | #else | |
| ed69bdd8 LP |
30 | static inline int cci_ace_get_port(struct device_node *dn) |
| 31 | { | |
| 32 | return -ENODEV; | |
| 33 | } | |
| 34 | static inline int cci_disable_port_by_cpu(u64 mpidr) { return -ENODEV; } | |
| 35 | static inline int __cci_control_port_by_device(struct device_node *dn, | |
| 36 | bool enable) | |
| 37 | { | |
| 38 | return -ENODEV; | |
| 39 | } | |
| 40 | static inline int __cci_control_port_by_index(u32 port, bool enable) | |
| 41 | { | |
| 42 | return -ENODEV; | |
| 43 | } | |
| 44 | #endif | |
| ee8e5d5f | 45 | |
| ed69bdd8 LP |
46 | #define cci_disable_port_by_device(dev) \ |
| 47 | __cci_control_port_by_device(dev, false) | |
| 48 | #define cci_enable_port_by_device(dev) \ | |
| 49 | __cci_control_port_by_device(dev, true) | |
| 50 | #define cci_disable_port_by_index(dev) \ | |
| 51 | __cci_control_port_by_index(dev, false) | |
| 52 | #define cci_enable_port_by_index(dev) \ | |
| 53 | __cci_control_port_by_index(dev, true) | |
| 54 | ||
| 55 | #endif |