/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _ASM_POWERPC_PAPR_SYSPARM_H #define _ASM_POWERPC_PAPR_SYSPARM_H #include <uapi/asm/papr-sysparm.h> typedef struct { u32 token; } papr_sysparm_t; #define mk_papr_sysparm(x_) ((papr_sysparm_t){ .token = x_, }) /* * Derived from the "Defined Parameters" table in PAPR 7.3.16 System * Parameters Option. Where the spec says "characteristics", we use * "attrs" in the symbolic names to keep them from getting too * unwieldy. */ #define PAPR_SYSPARM_SHARED_PROC_LPAR_ATTRS mk_papr_sysparm(20) #define PAPR_SYSPARM_PROC_MODULE_INFO mk_papr_sysparm(43) #define PAPR_SYSPARM_COOP_MEM_OVERCOMMIT_ATTRS mk_papr_sysparm(44) #define PAPR_SYSPARM_TLB_BLOCK_INVALIDATE_ATTRS mk_papr_sysparm(50) #define PAPR_SYSPARM_LPAR_NAME mk_papr_sysparm(55) /** * struct papr_sysparm_buf - RTAS work area layout for system parameter functions. * * This is the memory layout of the buffers passed to/from * ibm,get-system-parameter and ibm,set-system-parameter. It is * distinct from the papr_sysparm_io_block structure that is passed * between user space and the kernel. */ struct papr_sysparm_buf { __be16 len; u8 val[PAPR_SYSPARM_MAX_OUTPUT]; }; struct papr_sysparm_buf *papr_sysparm_buf_alloc(void); void papr_sysparm_buf_free(struct papr_sysparm_buf *buf); int papr_sysparm_set(papr_sysparm_t param, const struct papr_sysparm_buf *buf); int papr_sysparm_get(papr_sysparm_t param, struct papr_sysparm_buf *buf); #endif /* _ASM_POWERPC_PAPR_SYSPARM_H */