1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 2 /* 3 * hvconsole.h 4 * Copyright (C) 2004 Ryan S Arnold, IBM Corpo 5 * 6 * LPAR console support. 7 */ 8 9 #ifndef _PPC64_HVCONSOLE_H 10 #define _PPC64_HVCONSOLE_H 11 #ifdef __KERNEL__ 12 13 /* 14 * PSeries firmware will only send/recv up to 15 * hcall. 16 */ 17 #define MAX_VIO_PUT_CHARS 16 18 #define SIZE_VIO_GET_CHARS 16 19 20 /* 21 * Vio firmware always attempts to fetch MAX_V 22 * parm is included to conform to put_chars() 23 */ 24 extern ssize_t hvc_get_chars(uint32_t vtermno, 25 extern ssize_t hvc_put_chars(uint32_t vtermno, 26 27 /* Provided by HVC VIO */ 28 void hvc_vio_init_early(void); 29 30 #endif /* __KERNEL__ */ 31 #endif /* _PPC64_HVCONSOLE_H */ 32
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