Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *	Access to VGA videoram
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *	(c) 1998 Martin Mares <mj@ucw.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #ifndef _ASM_X86_VGA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #define _ASM_X86_VGA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/set_memory.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  *	On the PC, we can just recalculate addresses and then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  *	access the videoram directly without any black magic.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  *	To support memory encryption however, we need to access
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  *	the videoram as decrypted memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define VGA_MAP_MEM(x, s)					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) ({								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	unsigned long start = (unsigned long)phys_to_virt(x);	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT))			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		set_memory_decrypted(start, (s) >> PAGE_SHIFT);	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	start;							\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define vga_readb(x) (*(x))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define vga_writeb(x, y) (*(y) = (x))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #endif /* _ASM_X86_VGA_H */