1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Access to VGA videoram 4 * 5 * (c) 1998 Martin Mares <mj@ucw.cz> 6 */ 7 #ifndef __ASM_GENERIC_VGA_H 8 #define __ASM_GENERIC_VGA_H 9 10 /* 11 * On most architectures that support VGA, we can just 12 * recalculate addresses and then access the videoram 13 * directly without any black magic. 14 * 15 * Everyone else needs to ioremap the address and use 16 * proper I/O accesses. 17 */ 18 #ifndef VGA_MAP_MEM 19 #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x) 20 #endif 21 22 #define vga_readb(x) (*(x)) 23 #define vga_writeb(x, y) (*(y) = (x)) 24 25 #endif /* _ASM_GENERIC_VGA_H */ 26