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- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * Access to VGA videoram
- *
- * (c) 1998 Martin Mares <[email protected]>
- */
- #ifndef _ASM_X86_VGA_H
- #define _ASM_X86_VGA_H
- #include <asm/set_memory.h>
- /*
- * On the PC, we can just recalculate addresses and then
- * access the videoram directly without any black magic.
- * To support memory encryption however, we need to access
- * the videoram as decrypted memory.
- */
- #define VGA_MAP_MEM(x, s) \
- ({ \
- unsigned long start = (unsigned long)phys_to_virt(x); \
- \
- if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT)) \
- set_memory_decrypted(start, (s) >> PAGE_SHIFT); \
- \
- start; \
- })
- #define vga_readb(x) (*(x))
- #define vga_writeb(x, y) (*(y) = (x))
- #endif /* _ASM_X86_VGA_H */
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