xref: /openbmc/linux/include/asm-generic/vga.h (revision 4f3db074)
1 /*
2  *	Access to VGA videoram
3  *
4  *	(c) 1998 Martin Mares <mj@ucw.cz>
5  */
6 #ifndef __ASM_GENERIC_VGA_H
7 #define __ASM_GENERIC_VGA_H
8 
9 /*
10  *	On most architectures that support VGA, we can just
11  *	recalculate addresses and then access the videoram
12  *	directly without any black magic.
13  *
14  *	Everyone else needs to ioremap the address and use
15  *	proper I/O accesses.
16  */
17 #ifndef VGA_MAP_MEM
18 #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
19 #endif
20 
21 #define vga_readb(x) (*(x))
22 #define vga_writeb(x, y) (*(y) = (x))
23 
24 #endif /* _ASM_GENERIC_VGA_H */
25