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Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/include/asm/hvcserver.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/hvcserver.h b/arch/powerpc/include/asm/hvcserver.h new file mode 100644 index 000000000..2b20403e9 --- /dev/null +++ b/arch/powerpc/include/asm/hvcserver.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * hvcserver.h + * Copyright (C) 2004 Ryan S Arnold, IBM Corporation + * + * PPC64 virtual I/O console server support. + */ + +#ifndef _PPC64_HVCSERVER_H +#define _PPC64_HVCSERVER_H +#ifdef __KERNEL__ + +#include <linux/list.h> + +/* Converged Location Code length */ +#define HVCS_CLC_LENGTH 79 + +/** + * hvcs_partner_info - an element in a list of partner info + * @node: list_head denoting this partner_info struct's position in the list of + * partner info. + * @unit_address: The partner unit address of this entry. + * @partition_ID: The partner partition ID of this entry. + * @location_code: The converged location code of this entry + 1 char for the + * null-term. + * + * This structure outlines the format that partner info is presented to a caller + * of the hvcs partner info fetching functions. These are strung together into + * a list using linux kernel lists. + */ +struct hvcs_partner_info { + struct list_head node; + uint32_t unit_address; + uint32_t partition_ID; + char location_code[HVCS_CLC_LENGTH + 1]; /* CLC + 1 null-term char */ +}; + +extern int hvcs_free_partner_info(struct list_head *head); +extern int hvcs_get_partner_info(uint32_t unit_address, + struct list_head *head, unsigned long *pi_buff); +extern int hvcs_register_connection(uint32_t unit_address, + uint32_t p_partition_ID, uint32_t p_unit_address); +extern int hvcs_free_connection(uint32_t unit_address); + +#endif /* __KERNEL__ */ +#endif /* _PPC64_HVCSERVER_H */ |