diff options
Diffstat (limited to 'arch/i386/boot/video.c')
| -rw-r--r-- | arch/i386/boot/video.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/i386/boot/video.c b/arch/i386/boot/video.c index 3bb3573cd6a..693f20d3102 100644 --- a/arch/i386/boot/video.c +++ b/arch/i386/boot/video.c @@ -61,7 +61,7 @@ static void store_video_mode(void) /* Not all BIOSes are clean with respect to the top bit */ boot_params.screen_info.orig_video_mode = ax & 0x7f; - boot_params.screen_info.orig_video_page = page; + boot_params.screen_info.orig_video_page = page >> 8; } /* @@ -195,7 +195,7 @@ static void vga_recalc_vertical(void) { unsigned int font_size, rows; u16 crtc; - u8 ov; + u8 pt, ov; set_fs(0); font_size = rdfs8(0x485); /* BIOS: font size (pixels) */ @@ -206,7 +206,12 @@ static void vga_recalc_vertical(void) crtc = vga_crtc(); + pt = in_idx(crtc, 0x11); + pt &= ~0x80; /* Unlock CR0-7 */ + out_idx(pt, crtc, 0x11); + out_idx((u8)rows, crtc, 0x12); /* Lower height register */ + ov = in_idx(crtc, 0x07); /* Overflow register */ ov &= 0xbd; ov |= (rows >> (8-1)) & 0x02; @@ -411,7 +416,7 @@ static void restore_screen(void) "1: rep;stosl ; " "popw %%es" : "+D" (dst), "+c" (npad) - : "bdSm" (video_segment), + : "bdS" (video_segment), "a" (0x07200720)); } |