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Merge branch 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, setup: Don't skip mode setting for the standard VGA modes
  x86-64, setup: Inhibit decompressor output if video info is invalid
  x86, setup: When restoring the screen, update boot_params.screen_info
Linus Torvalds 15 年之前
父节点
当前提交
f6a0b5cd34
共有 3 个文件被更改,包括 8 次插入10 次删除
  1. 0 2
      arch/x86/boot/compressed/misc.c
  2. 1 8
      arch/x86/boot/video-vga.c
  3. 7 0
      arch/x86/boot/video.c

+ 0 - 2
arch/x86/boot/compressed/misc.c

@@ -180,11 +180,9 @@ static void __putstr(int error, const char *s)
 		return;
 #endif
 
-#ifdef CONFIG_X86_32
 	if (real_mode->screen_info.orig_video_mode == 0 &&
 	    lines == 0 && cols == 0)
 		return;
-#endif
 
 	x = real_mode->screen_info.orig_x;
 	y = real_mode->screen_info.orig_y;

+ 1 - 8
arch/x86/boot/video-vga.c

@@ -42,22 +42,15 @@ static u8 vga_set_basic_mode(void)
 {
 	struct biosregs ireg, oreg;
 	u16 ax;
-	u8 rows;
 	u8 mode;
 
 	initregs(&ireg);
 
+	/* Query current mode */
 	ax = 0x0f00;
 	intcall(0x10, &ireg, &oreg);
 	mode = oreg.al;
 
-	set_fs(0);
-	rows = rdfs8(0x484);	/* rows minus one */
-
-	if ((oreg.ax == 0x5003 || oreg.ax == 0x5007) &&
-	    (rows == 0 || rows == 24))
-		return mode;
-
 	if (mode != 3 && mode != 7)
 		mode = 3;
 

+ 7 - 0
arch/x86/boot/video.c

@@ -298,11 +298,18 @@ static void restore_screen(void)
 	}
 
 	/* Restore cursor position */
+	if (saved.curx >= xs)
+		saved.curx = xs-1;
+	if (saved.cury >= ys)
+		saved.cury = ys-1;
+
 	initregs(&ireg);
 	ireg.ah = 0x02;		/* Set cursor position */
 	ireg.dh = saved.cury;
 	ireg.dl = saved.curx;
 	intcall(0x10, &ireg, NULL);
+
+	store_cursor_position();
 }
 
 void set_video(void)