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Diffstat (limited to 'arch/powerpc/include/asm/dcr-generic.h')
| -rw-r--r-- | arch/powerpc/include/asm/dcr-generic.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/dcr-generic.h b/arch/powerpc/include/asm/dcr-generic.h new file mode 100644 index 000000000..099c28dd4 --- /dev/null +++ b/arch/powerpc/include/asm/dcr-generic.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. + * <benh@kernel.crashing.org> + */ + +#ifndef _ASM_POWERPC_DCR_GENERIC_H +#define _ASM_POWERPC_DCR_GENERIC_H +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ + +enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID}; + +typedef struct { + enum host_type_t type; + union { + dcr_host_mmio_t mmio; + dcr_host_native_t native; + } host; +} dcr_host_t; + +extern bool dcr_map_ok_generic(dcr_host_t host); + +extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n, + unsigned int dcr_c); +extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c); + +extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n); + +extern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value); + +#endif /* __ASSEMBLY__ */ +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_DCR_GENERIC_H */ + + |