1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
4 * <benh@kernel.crashing.org>
5 */
6
7 #ifndef _ASM_POWERPC_DCR_GENERIC_H
8 #define _ASM_POWERPC_DCR_GENERIC_H
9 #ifdef __KERNEL__
10 #ifndef __ASSEMBLY__
11
12 enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID};
13
14 typedef struct {
15 enum host_type_t type;
16 union {
17 dcr_host_mmio_t mmio;
18 dcr_host_native_t native;
19 } host;
20 } dcr_host_t;
21
22 extern bool dcr_map_ok_generic(dcr_host_t host);
23
24 extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n,
25 unsigned int dcr_c);
26 extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c);
27
28 extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n);
29
30 extern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value);
31
32 #endif /* __ASSEMBLY__ */
33 #endif /* __KERNEL__ */
34 #endif /* _ASM_POWERPC_DCR_GENERIC_H */
35
36
37
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.