diff options
Diffstat (limited to 'arch/x86/boot/video.h')
| -rw-r--r-- | arch/x86/boot/video.h | 36 |
1 files changed, 3 insertions, 33 deletions
diff --git a/arch/x86/boot/video.h b/arch/x86/boot/video.h index ee63f5d1446..0bb25491262 100644 --- a/arch/x86/boot/video.h +++ b/arch/x86/boot/video.h @@ -17,19 +17,8 @@ #include <linux/types.h> -/* Enable autodetection of SVGA adapters and modes. */ -#undef CONFIG_VIDEO_SVGA - -/* Enable autodetection of VESA modes */ -#define CONFIG_VIDEO_VESA - -/* Retain screen contents when switching modes */ -#define CONFIG_VIDEO_RETAIN - -/* Force 400 scan lines for standard modes (hack to fix bad BIOS behaviour */ -#undef CONFIG_VIDEO_400_HACK - -/* This code uses an extended set of video mode numbers. These include: +/* + * This code uses an extended set of video mode numbers. These include: * Aliases for standard modes * NORMAL_VGA (-1) * EXTENDED_VGA (-2) @@ -67,13 +56,8 @@ /* The "recalculate timings" flag */ #define VIDEO_RECALC 0x8000 -/* Define DO_STORE according to CONFIG_VIDEO_RETAIN */ -#ifdef CONFIG_VIDEO_RETAIN void store_screen(void); #define DO_STORE() store_screen() -#else -#define DO_STORE() ((void)0) -#endif /* CONFIG_VIDEO_RETAIN */ /* * Mode table structures @@ -96,7 +80,7 @@ struct card_info { u16 xmode_n; /* Size of unprobed mode range */ }; -#define __videocard struct card_info __attribute__((section(".videocards"))) +#define __videocard struct card_info __attribute__((used,section(".videocards"))) extern struct card_info video_cards[], video_cards_end[]; int mode_defined(u16 mode); /* video.c */ @@ -112,20 +96,6 @@ extern int force_x, force_y; /* Don't query the BIOS for cols/rows */ extern int do_restore; /* Restore screen contents */ extern int graphic_mode; /* Graphics mode with linear frame buffer */ -/* - * int $0x10 is notorious for touching registers it shouldn't. - * gcc doesn't like %ebp being clobbered, so define it as a push/pop - * sequence here. - * - * A number of systems, including the original PC can clobber %bp in - * certain circumstances, like when scrolling. There exists at least - * one Trident video card which could clobber DS under a set of - * circumstances that we are unlikely to encounter (scrolling when - * using an extended graphics mode of more than 800x600 pixels), but - * it's cheap insurance to deal with that here. - */ -#define INT10 "pushl %%ebp; pushw %%ds; int $0x10; popw %%ds; popl %%ebp" - /* Accessing VGA indexed registers */ static inline u8 in_idx(u16 port, u8 index) { |