Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup:
  [PATCH] x86: do not recompile boot for each build
  [x86 setup] Save/restore DS around invocations of INT 10h
  [x86 setup] VGA: Clear the Protect bit before setting the vertical height
  [x86 setup] Fix assembly constraints
  [x86 setup] build/tools.c: fix comment
  [x86 setup] MAINTAINERS: document x86 setup code git tree

10 files changed, 24 insertions, 12 deletions

diff --git a/arch/i386/boot/Makefile b/arch/i386/boot/Makefile
index 08678a0a3d19..93386a4e40b4 100644
--- a/arch/i386/boot/Makefile
+++ b/arch/i386/boot/Makefile
@@ -39,7 +39,7 @@ setup-y		+= printf.o string.o tty.o video.o version.o voyager.o
 setup-y         += video-vga.o
 setup-y         += video-vesa.o
 setup-y         += video-bios.o
-
+targets         += $(setup-y)
 hostprogs-y     := tools/build
 
 HOSTCFLAGS_build.o := $(LINUXINCLUDE)
diff --git a/arch/i386/boot/boot.h b/arch/i386/boot/boot.h
index 0329c4fe4f88..dec70c9b6050 100644
--- a/arch/i386/boot/boot.h
+++ b/arch/i386/boot/boot.h
@@ -56,7 +56,7 @@ static inline u16 inw(u16 port)
 
 static inline void outl(u32 v, u16 port)
 {
-        asm volatile("outl %0,%1" : : "a" (v), "dn" (port));
+        asm volatile("outl %0,%1" : : "a" (v), "dN" (port));
 }
 static inline u32 inl(u32 port)
 {
diff --git a/arch/i386/boot/cpucheck.c b/arch/i386/boot/cpucheck.c
index 8b0f4473b083..991e8ceae1de 100644
--- a/arch/i386/boot/cpucheck.c
+++ b/arch/i386/boot/cpucheck.c
@@ -115,8 +115,8 @@ static int has_eflag(u32 mask)
             "pushfl ; "
             "popl %1 ; "
             "popfl"
-            : "=r" (f0), "=r" (f1)
-            : "g" (mask));
+            : "=&r" (f0), "=&r" (f1)
+            : "ri" (mask));
 
         return !!((f0^f1) & mask);
 }
diff --git a/arch/i386/boot/mca.c b/arch/i386/boot/mca.c
index 9b68bd1aef19..68222f2d4b67 100644
--- a/arch/i386/boot/mca.c
+++ b/arch/i386/boot/mca.c
@@ -26,7 +26,7 @@ int query_mca(void)
             "setc %0 ; "
             "movw %%es, %1 ; "
             "popw %%es"
-            : "=acdSDm" (err), "=acdSDm" (es), "=b" (bx)
+            : "=acd" (err), "=acdSD" (es), "=b" (bx)
             : "a" (0xc000));
 
         if (err)
diff --git a/arch/i386/boot/pm.c b/arch/i386/boot/pm.c
index 3fa53e15ed77..1df025c73261 100644
--- a/arch/i386/boot/pm.c
+++ b/arch/i386/boot/pm.c
@@ -65,7 +65,7 @@ static void move_kernel_around(void)
                              "popw %%ds ; "
                              "popw %%es"
                              : "+c" (dwords)
-                             : "rm" (dst_seg), "rm" (src_seg)
+                             : "r" (dst_seg), "r" (src_seg)
                              : "esi", "edi");
 
                 syssize -= paras;
diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c
index 886f47d8a488..b4248740ff0d 100644
--- a/arch/i386/boot/tools/build.c
+++ b/arch/i386/boot/tools/build.c
@@ -5,7 +5,7 @@
  */
 
 /*
- * This file builds a disk-image from three different files:
+ * This file builds a disk-image from two different files:
  *
  * - setup: 8086 machine code, sets up system parm
  * - system: 80386 code for actual system
diff --git a/arch/i386/boot/tty.c b/arch/i386/boot/tty.c
index a8db78736b02..9c668aad3515 100644
--- a/arch/i386/boot/tty.c
+++ b/arch/i386/boot/tty.c
@@ -31,7 +31,7 @@ void __attribute__((section(".inittext"))) putchar(int ch)
 
         /* int $0x10 is known to have bugs involving touching registers
            it shouldn't.  Be extra conservative... */
-        asm volatile("pushal; int $0x10; popal"
+        asm volatile("pushal; pushw %%ds; int $0x10; popw %%ds; popal"
                      : : "b" (0x0007), "c" (0x0001), "a" (0x0e00|ch));
 }
 
diff --git a/arch/i386/boot/video.c b/arch/i386/boot/video.c
index 3bb3573cd6a1..958130ef0042 100644
--- a/arch/i386/boot/video.c
+++ b/arch/i386/boot/video.c
@@ -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));
         }
 
diff --git a/arch/i386/boot/video.h b/arch/i386/boot/video.h
index 29eca1710b2c..b92447d51213 100644
--- a/arch/i386/boot/video.h
+++ b/arch/i386/boot/video.h
@@ -117,8 +117,15 @@ 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; int $0x10; popl %%ebp"
+#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)
diff --git a/arch/i386/boot/voyager.c b/arch/i386/boot/voyager.c
index 9221614d0db8..61c8fe0453be 100644
--- a/arch/i386/boot/voyager.c
+++ b/arch/i386/boot/voyager.c
@@ -32,7 +32,7 @@ int query_voyager(void)
             "setc %0 ; "
             "movw %%es, %1 ; "
             "popw %%es"
-            : "=qm" (err), "=rm" (es), "=D" (di)
+            : "=q" (err), "=r" (es), "=D" (di)
             : "a" (0xffc0));
 
         if (err)