x86_64: move kernel

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/boot/compressed/head_64.S

@@ -174,7 +174,7 @@ no_longmode:
 	hlt
 	jmp     1b
 
-#include "../../../x86_64/kernel/verify_cpu_64.S"
+#include "../../kernel/verify_cpu_64.S"
 
 	/* Be careful here startup_64 needs to be at a predictable
 	 * address so I can export it in an ELF header.  Bootloaders

arch/x86/kernel/Makefile

@@ -1,5 +1,5 @@
 ifeq ($(CONFIG_X86_32),y)
 include ${srctree}/arch/x86/kernel/Makefile_32
 else
-include ${srctree}/arch/x86_64/kernel/Makefile_64
+include ${srctree}/arch/x86/kernel/Makefile_64
 endif

arch/x86/kernel/Makefile_32

@@ -83,6 +83,4 @@ $(obj)/vsyscall-syms.o: $(src)/vsyscall_32.lds \
 			$(obj)/vsyscall-sysenter_32.o $(obj)/vsyscall-note_32.o FORCE
 	$(call if_changed,syscall)
 
-k8-y                      += ../../x86_64/kernel/k8.o
-stacktrace-y		  += ../../x86_64/kernel/stacktrace.o
 

arch/x86_64/kernel/Makefile_64 → arch/x86/kernel/Makefile_64

@@ -49,15 +49,6 @@ obj-y				+= pcspeaker.o
 CFLAGS_vsyscall_64.o		:= $(PROFILING) -g0
 
 therm_throt-y                   += ../../x86/kernel/cpu/mcheck/therm_throt.o
-bootflag-y			+= ../../x86/kernel/bootflag.o
-cpuid-$(subst m,y,$(CONFIG_X86_CPUID))  += ../../x86/kernel/cpuid.o
-topology-y                     += ../../x86/kernel/topology.o
-microcode-$(subst m,y,$(CONFIG_MICROCODE))  += ../../x86/kernel/microcode.o
 intel_cacheinfo-y		+= ../../x86/kernel/cpu/intel_cacheinfo.o
 addon_cpuid_features-y		+= ../../x86/kernel/cpu/addon_cpuid_features.o
-quirks-y			+= ../../x86/kernel/quirks.o
-i8237-y				+= ../../x86/kernel/i8237.o
-msr-$(subst m,y,$(CONFIG_X86_MSR))  += ../../x86/kernel/msr.o
-alternative-y			+= ../../x86/kernel/alternative.o
-pcspeaker-y			+= ../../x86/kernel/pcspeaker.o
 perfctr-watchdog-y		+= ../../x86/kernel/cpu/perfctr-watchdog.o

arch/x86/kernel/acpi/wakeup_64.S

@@ -269,7 +269,7 @@ no_longmode:
 	movb    $0xbc,%al       ;  outb %al,$0x80
 	jmp no_longmode
 
-#include "../../../x86_64/kernel/verify_cpu_64.S"
+#include "../verify_cpu_64.S"
 
 /* This code uses an extended set of video mode numbers. These include:
  * Aliases for standard modes

arch/x86/kernel/early_printk.c

@@ -1,2 +1,259 @@
+#include <linux/console.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/screen_info.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/fcntl.h>
+#include <xen/hvc-console.h>
 
-#include "../../x86_64/kernel/early_printk.c"
+/* Simple VGA output */
+
+#ifdef __i386__
+#include <asm/setup.h>
+#else
+#include <asm/bootsetup.h>
+#endif
+#define VGABASE		(__ISA_IO_base + 0xb8000)
+
+static int max_ypos = 25, max_xpos = 80;
+static int current_ypos = 25, current_xpos = 0;
+
+static void early_vga_write(struct console *con, const char *str, unsigned n)
+{
+	char c;
+	int  i, k, j;
+
+	while ((c = *str++) != '\0' && n-- > 0) {
+		if (current_ypos >= max_ypos) {
+			/* scroll 1 line up */
+			for (k = 1, j = 0; k < max_ypos; k++, j++) {
+				for (i = 0; i < max_xpos; i++) {
+					writew(readw(VGABASE+2*(max_xpos*k+i)),
+					       VGABASE + 2*(max_xpos*j + i));
+				}
+			}
+			for (i = 0; i < max_xpos; i++)
+				writew(0x720, VGABASE + 2*(max_xpos*j + i));
+			current_ypos = max_ypos-1;
+		}
+		if (c == '\n') {
+			current_xpos = 0;
+			current_ypos++;
+		} else if (c != '\r')  {
+			writew(((0x7 << 8) | (unsigned short) c),
+			       VGABASE + 2*(max_xpos*current_ypos +
+						current_xpos++));
+			if (current_xpos >= max_xpos) {
+				current_xpos = 0;
+				current_ypos++;
+			}
+		}
+	}
+}
+
+static struct console early_vga_console = {
+	.name =		"earlyvga",
+	.write =	early_vga_write,
+	.flags =	CON_PRINTBUFFER,
+	.index =	-1,
+};
+
+/* Serial functions loosely based on a similar package from Klaus P. Gerlicher */
+
+static int early_serial_base = 0x3f8;  /* ttyS0 */
+
+#define XMTRDY          0x20
+
+#define DLAB		0x80
+
+#define TXR             0       /*  Transmit register (WRITE) */
+#define RXR             0       /*  Receive register  (READ)  */
+#define IER             1       /*  Interrupt Enable          */
+#define IIR             2       /*  Interrupt ID              */
+#define FCR             2       /*  FIFO control              */
+#define LCR             3       /*  Line control              */
+#define MCR             4       /*  Modem control             */
+#define LSR             5       /*  Line Status               */
+#define MSR             6       /*  Modem Status              */
+#define DLL             0       /*  Divisor Latch Low         */
+#define DLH             1       /*  Divisor latch High        */
+
+static int early_serial_putc(unsigned char ch)
+{
+	unsigned timeout = 0xffff;
+	while ((inb(early_serial_base + LSR) & XMTRDY) == 0 && --timeout)
+		cpu_relax();
+	outb(ch, early_serial_base + TXR);
+	return timeout ? 0 : -1;
+}
+
+static void early_serial_write(struct console *con, const char *s, unsigned n)
+{
+	while (*s && n-- > 0) {
+		if (*s == '\n')
+			early_serial_putc('\r');
+		early_serial_putc(*s);
+		s++;
+	}
+}
+
+#define DEFAULT_BAUD 9600
+
+static __init void early_serial_init(char *s)
+{
+	unsigned char c;
+	unsigned divisor;
+	unsigned baud = DEFAULT_BAUD;
+	char *e;
+
+	if (*s == ',')
+		++s;
+
+	if (*s) {
+		unsigned port;
+		if (!strncmp(s,"0x",2)) {
+			early_serial_base = simple_strtoul(s, &e, 16);
+		} else {
+			static int bases[] = { 0x3f8, 0x2f8 };
+
+			if (!strncmp(s,"ttyS",4))
+				s += 4;
+			port = simple_strtoul(s, &e, 10);
+			if (port > 1 || s == e)
+				port = 0;
+			early_serial_base = bases[port];
+		}
+		s += strcspn(s, ",");
+		if (*s == ',')
+			s++;
+	}
+
+	outb(0x3, early_serial_base + LCR);	/* 8n1 */
+	outb(0, early_serial_base + IER);	/* no interrupt */
+	outb(0, early_serial_base + FCR);	/* no fifo */
+	outb(0x3, early_serial_base + MCR);	/* DTR + RTS */
+
+	if (*s) {
+		baud = simple_strtoul(s, &e, 0);
+		if (baud == 0 || s == e)
+			baud = DEFAULT_BAUD;
+	}
+
+	divisor = 115200 / baud;
+	c = inb(early_serial_base + LCR);
+	outb(c | DLAB, early_serial_base + LCR);
+	outb(divisor & 0xff, early_serial_base + DLL);
+	outb((divisor >> 8) & 0xff, early_serial_base + DLH);
+	outb(c & ~DLAB, early_serial_base + LCR);
+}
+
+static struct console early_serial_console = {
+	.name =		"earlyser",
+	.write =	early_serial_write,
+	.flags =	CON_PRINTBUFFER,
+	.index =	-1,
+};
+
+/* Console interface to a host file on AMD's SimNow! */
+
+static int simnow_fd;
+
+enum {
+	MAGIC1 = 0xBACCD00A,
+	MAGIC2 = 0xCA110000,
+	XOPEN = 5,
+	XWRITE = 4,
+};
+
+static noinline long simnow(long cmd, long a, long b, long c)
+{
+	long ret;
+	asm volatile("cpuid" :
+		     "=a" (ret) :
+		     "b" (a), "c" (b), "d" (c), "0" (MAGIC1), "D" (cmd + MAGIC2));
+	return ret;
+}
+
+static void __init simnow_init(char *str)
+{
+	char *fn = "klog";
+	if (*str == '=')
+		fn = ++str;
+	/* error ignored */
+	simnow_fd = simnow(XOPEN, (unsigned long)fn, O_WRONLY|O_APPEND|O_CREAT, 0644);
+}
+
+static void simnow_write(struct console *con, const char *s, unsigned n)
+{
+	simnow(XWRITE, simnow_fd, (unsigned long)s, n);
+}
+
+static struct console simnow_console = {
+	.name =		"simnow",
+	.write =	simnow_write,
+	.flags =	CON_PRINTBUFFER,
+	.index =	-1,
+};
+
+/* Direct interface for emergencies */
+struct console *early_console = &early_vga_console;
+static int early_console_initialized = 0;
+
+void early_printk(const char *fmt, ...)
+{
+	char buf[512];
+	int n;
+	va_list ap;
+
+	va_start(ap,fmt);
+	n = vscnprintf(buf,512,fmt,ap);
+	early_console->write(early_console,buf,n);
+	va_end(ap);
+}
+
+static int __initdata keep_early;
+
+static int __init setup_early_printk(char *buf)
+{
+	if (!buf)
+		return 0;
+
+	if (early_console_initialized)
+		return 0;
+	early_console_initialized = 1;
+
+	if (strstr(buf, "keep"))
+		keep_early = 1;
+
+	if (!strncmp(buf, "serial", 6)) {
+		early_serial_init(buf + 6);
+		early_console = &early_serial_console;
+	} else if (!strncmp(buf, "ttyS", 4)) {
+		early_serial_init(buf);
+		early_console = &early_serial_console;
+	} else if (!strncmp(buf, "vga", 3)
+	           && SCREEN_INFO.orig_video_isVGA == 1) {
+		max_xpos = SCREEN_INFO.orig_video_cols;
+		max_ypos = SCREEN_INFO.orig_video_lines;
+		current_ypos = SCREEN_INFO.orig_y;
+		early_console = &early_vga_console;
+ 	} else if (!strncmp(buf, "simnow", 6)) {
+ 		simnow_init(buf + 6);
+ 		early_console = &simnow_console;
+ 		keep_early = 1;
+#ifdef CONFIG_HVC_XEN
+	} else if (!strncmp(buf, "xen", 3)) {
+		early_console = &xenboot_console;
+#endif
+	}
+
+	if (keep_early)
+		early_console->flags &= ~CON_BOOT;
+	else
+		early_console->flags |= CON_BOOT;
+	register_console(early_console);
+	return 0;
+}
+early_param("earlyprintk", setup_early_printk);