1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 #ifndef _ASM_POWERPC_PAPR_SYSPARM_H 3 #define _ASM_POWERPC_PAPR_SYSPARM_H 4 5 typedef struct { 6 const u32 token; 7 } papr_sysparm_t; 8 9 #define mk_papr_sysparm(x_) ((papr_sysparm_t){ .token = x_, }) 10 11 /* 12 * Derived from the "Defined Parameters" table in PAPR 7.3.16 System 13 * Parameters Option. Where the spec says "characteristics", we use 14 * "attrs" in the symbolic names to keep them from getting too 15 * unwieldy. 16 */ 17 #define PAPR_SYSPARM_SHARED_PROC_LPAR_ATTRS mk_papr_sysparm(20) 18 #define PAPR_SYSPARM_PROC_MODULE_INFO mk_papr_sysparm(43) 19 #define PAPR_SYSPARM_COOP_MEM_OVERCOMMIT_ATTRS mk_papr_sysparm(44) 20 #define PAPR_SYSPARM_TLB_BLOCK_INVALIDATE_ATTRS mk_papr_sysparm(50) 21 #define PAPR_SYSPARM_LPAR_NAME mk_papr_sysparm(55) 22 23 enum { 24 PAPR_SYSPARM_MAX_INPUT = 1024, 25 PAPR_SYSPARM_MAX_OUTPUT = 4000, 26 }; 27 28 struct papr_sysparm_buf { 29 __be16 len; 30 char val[PAPR_SYSPARM_MAX_OUTPUT]; 31 }; 32 33 struct papr_sysparm_buf *papr_sysparm_buf_alloc(void); 34 void papr_sysparm_buf_free(struct papr_sysparm_buf *buf); 35 int papr_sysparm_set(papr_sysparm_t param, const struct papr_sysparm_buf *buf); 36 int papr_sysparm_get(papr_sysparm_t param, struct papr_sysparm_buf *buf); 37 38 #endif /* _ASM_POWERPC_PAPR_SYSPARM_H */ 39