1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _ASM_POWERPC_VGA_H_ 3#define _ASM_POWERPC_VGA_H_ 4 5#ifdef __KERNEL__ 6 7/* 8 * Access to VGA videoram 9 * 10 * (c) 1998 Martin Mares <mj@ucw.cz> 11 */ 12 13 14#include <asm/io.h> 15 16 17#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE) 18 19#define VT_BUF_HAVE_RW 20/* 21 * These are only needed for supporting VGA or MDA text mode, which use little 22 * endian byte ordering. 23 * In other cases, we can optimize by using native byte ordering and 24 * <linux/vt_buffer.h> has already done the right job for us. 25 */ 26 27static inline void scr_writew(u16 val, volatile u16 *addr) 28{ 29 *addr = cpu_to_le16(val); 30} 31 32static inline u16 scr_readw(volatile const u16 *addr) 33{ 34 return le16_to_cpu(*addr); 35} 36 37#define VT_BUF_HAVE_MEMSETW 38static inline void scr_memsetw(u16 *s, u16 v, unsigned int n) 39{ 40 memset16(s, cpu_to_le16(v), n / 2); 41} 42 43#define VT_BUF_HAVE_MEMCPYW 44#define VT_BUF_HAVE_MEMMOVEW 45#define scr_memcpyw memcpy 46#define scr_memmovew memmove 47 48#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */ 49 50#ifdef __powerpc64__ 51#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s)) 52#else 53#define VGA_MAP_MEM(x,s) (x) 54#endif 55 56#define vga_readb(x) (*(x)) 57#define vga_writeb(x,y) (*(y) = (x)) 58 59#endif /* __KERNEL__ */ 60#endif /* _ASM_POWERPC_VGA_H_ */ 61