diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:17:24 +0200 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:17:24 +0200 |
commit | 250c22777fe1ccd7ac588579a6c16db4c0161cc5 (patch) | |
tree | 55c317efb7d792ec6fdae1d1937c67a502c48dec /arch | |
parent | 2db55d344e529492545cb3b755c7e9ba8e4fa94e (diff) | |
download | linux-250c22777fe1ccd7ac588579a6c16db4c0161cc5.tar.bz2 |
x86_64: move kernel
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/boot/compressed/head_64.S | 2 | ||||
-rw-r--r-- | arch/x86/kernel/Makefile | 2 | ||||
-rw-r--r-- | arch/x86/kernel/Makefile_32 | 2 | ||||
-rw-r--r-- | arch/x86/kernel/Makefile_64 (renamed from arch/x86_64/kernel/Makefile_64) | 9 | ||||
-rw-r--r-- | arch/x86/kernel/acpi/wakeup_64.S | 2 | ||||
-rw-r--r-- | arch/x86/kernel/aperture_64.c (renamed from arch/x86_64/kernel/aperture_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/apic_64.c (renamed from arch/x86_64/kernel/apic_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/asm-offsets_64.c (renamed from arch/x86_64/kernel/asm-offsets_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/audit_64.c (renamed from arch/x86_64/kernel/audit_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/bugs_64.c (renamed from arch/x86_64/kernel/bugs_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/crash_64.c (renamed from arch/x86_64/kernel/crash_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/crash_dump_64.c (renamed from arch/x86_64/kernel/crash_dump_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/e820_64.c (renamed from arch/x86_64/kernel/e820_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/early-quirks_64.c (renamed from arch/x86_64/kernel/early-quirks_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/early_printk.c | 259 | ||||
-rw-r--r-- | arch/x86/kernel/entry_64.S (renamed from arch/x86_64/kernel/entry_64.S) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/genapic_64.c (renamed from arch/x86_64/kernel/genapic_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/genapic_flat_64.c (renamed from arch/x86_64/kernel/genapic_flat_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/head64.c (renamed from arch/x86_64/kernel/head64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/head_64.S (renamed from arch/x86_64/kernel/head_64.S) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/hpet_64.c (renamed from arch/x86_64/kernel/hpet_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/i387_64.c (renamed from arch/x86_64/kernel/i387_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/i8259_64.c (renamed from arch/x86_64/kernel/i8259_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/init_task_64.c (renamed from arch/x86_64/kernel/init_task_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/io_apic_64.c (renamed from arch/x86_64/kernel/io_apic_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/ioport_64.c (renamed from arch/x86_64/kernel/ioport_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/irq_64.c (renamed from arch/x86_64/kernel/irq_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/k8.c (renamed from arch/x86_64/kernel/k8.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/kprobes_64.c (renamed from arch/x86_64/kernel/kprobes_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/ldt_64.c (renamed from arch/x86_64/kernel/ldt_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/machine_kexec_64.c (renamed from arch/x86_64/kernel/machine_kexec_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/mce_64.c (renamed from arch/x86_64/kernel/mce_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/mce_amd_64.c (renamed from arch/x86_64/kernel/mce_amd_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/mce_intel_64.c (renamed from arch/x86_64/kernel/mce_intel_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/module_64.c (renamed from arch/x86_64/kernel/module_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/mpparse_64.c (renamed from arch/x86_64/kernel/mpparse_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/nmi_64.c (renamed from arch/x86_64/kernel/nmi_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/pci-calgary_64.c (renamed from arch/x86_64/kernel/pci-calgary_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/pci-dma_64.c (renamed from arch/x86_64/kernel/pci-dma_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/pci-gart_64.c (renamed from arch/x86_64/kernel/pci-gart_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/pci-nommu_64.c (renamed from arch/x86_64/kernel/pci-nommu_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/pci-swiotlb_64.c (renamed from arch/x86_64/kernel/pci-swiotlb_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/pmtimer_64.c (renamed from arch/x86_64/kernel/pmtimer_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/process_64.c (renamed from arch/x86_64/kernel/process_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/ptrace_64.c (renamed from arch/x86_64/kernel/ptrace_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/reboot_64.c (renamed from arch/x86_64/kernel/reboot_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/relocate_kernel_64.S (renamed from arch/x86_64/kernel/relocate_kernel_64.S) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/setup64.c (renamed from arch/x86_64/kernel/setup64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/setup_64.c (renamed from arch/x86_64/kernel/setup_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/signal_64.c (renamed from arch/x86_64/kernel/signal_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/smp_64.c (renamed from arch/x86_64/kernel/smp_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/smpboot_64.c (renamed from arch/x86_64/kernel/smpboot_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/stacktrace.c (renamed from arch/x86_64/kernel/stacktrace.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/suspend_64.c (renamed from arch/x86_64/kernel/suspend_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/suspend_asm_64.S (renamed from arch/x86_64/kernel/suspend_asm_64.S) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/sys_x86_64.c (renamed from arch/x86_64/kernel/sys_x86_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/syscall_64.c (renamed from arch/x86_64/kernel/syscall_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/tce_64.c (renamed from arch/x86_64/kernel/tce_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/time_64.c (renamed from arch/x86_64/kernel/time_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/trampoline_64.S (renamed from arch/x86_64/kernel/trampoline_64.S) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/traps_64.c (renamed from arch/x86_64/kernel/traps_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/tsc_64.c (renamed from arch/x86_64/kernel/tsc_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/tsc_sync.c | 188 | ||||
-rw-r--r-- | arch/x86/kernel/verify_cpu_64.S (renamed from arch/x86_64/kernel/verify_cpu_64.S) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/vmlinux_64.lds.S (renamed from arch/x86_64/kernel/vmlinux_64.lds.S) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/vsmp_64.c (renamed from arch/x86_64/kernel/vsmp_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/vsyscall_64.c (renamed from arch/x86_64/kernel/vsyscall_64.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/x8664_ksyms_64.c (renamed from arch/x86_64/kernel/x8664_ksyms_64.c) | 0 | ||||
-rw-r--r-- | arch/x86_64/Makefile | 11 | ||||
-rw-r--r-- | arch/x86_64/kernel/Makefile | 5 | ||||
-rw-r--r-- | arch/x86_64/kernel/asm-offsets.c | 5 | ||||
-rw-r--r-- | arch/x86_64/kernel/early_printk.c | 259 | ||||
-rw-r--r-- | arch/x86_64/kernel/tsc_sync.c | 187 | ||||
-rw-r--r-- | arch/x86_64/kernel/vmlinux.lds.S | 5 |
74 files changed, 457 insertions, 479 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index cff3d1dc5dd4..49467640751f 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/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 diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 577d08f4b8bb..45855c97923e 100644 --- a/arch/x86/kernel/Makefile +++ b/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 diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32 index 5096f486d389..cb25523026a6 100644 --- a/arch/x86/kernel/Makefile_32 +++ b/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 diff --git a/arch/x86_64/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64 index 120d4e51fd4d..6e6b5909e465 100644 --- a/arch/x86_64/kernel/Makefile_64 +++ b/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 diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S index 5e3b3f5496c5..8b4357e1efe0 100644 --- a/arch/x86/kernel/acpi/wakeup_64.S +++ b/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 diff --git a/arch/x86_64/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 8f681cae7bf7..8f681cae7bf7 100644 --- a/arch/x86_64/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c diff --git a/arch/x86_64/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index 925758dbca0c..925758dbca0c 100644 --- a/arch/x86_64/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c diff --git a/arch/x86_64/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c index 778953bc636c..778953bc636c 100644 --- a/arch/x86_64/kernel/asm-offsets_64.c +++ b/arch/x86/kernel/asm-offsets_64.c diff --git a/arch/x86_64/kernel/audit_64.c b/arch/x86/kernel/audit_64.c index 06d3e5a14d9d..06d3e5a14d9d 100644 --- a/arch/x86_64/kernel/audit_64.c +++ b/arch/x86/kernel/audit_64.c diff --git a/arch/x86_64/kernel/bugs_64.c b/arch/x86/kernel/bugs_64.c index 4e5e9d364d63..4e5e9d364d63 100644 --- a/arch/x86_64/kernel/bugs_64.c +++ b/arch/x86/kernel/bugs_64.c diff --git a/arch/x86_64/kernel/crash_64.c b/arch/x86/kernel/crash_64.c index 13432a1ae904..13432a1ae904 100644 --- a/arch/x86_64/kernel/crash_64.c +++ b/arch/x86/kernel/crash_64.c diff --git a/arch/x86_64/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c index 942deac4d43a..942deac4d43a 100644 --- a/arch/x86_64/kernel/crash_dump_64.c +++ b/arch/x86/kernel/crash_dump_64.c diff --git a/arch/x86_64/kernel/e820_64.c b/arch/x86/kernel/e820_64.c index 0f4d5e209e9b..0f4d5e209e9b 100644 --- a/arch/x86_64/kernel/e820_64.c +++ b/arch/x86/kernel/e820_64.c diff --git a/arch/x86_64/kernel/early-quirks_64.c b/arch/x86/kernel/early-quirks_64.c index 13aa4fd728f3..13aa4fd728f3 100644 --- a/arch/x86_64/kernel/early-quirks_64.c +++ b/arch/x86/kernel/early-quirks_64.c diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c index 92f812ba275c..fd9aff3f3890 100644 --- a/arch/x86/kernel/early_printk.c +++ b/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); diff --git a/arch/x86_64/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 1d232e5f5658..1d232e5f5658 100644 --- a/arch/x86_64/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S diff --git a/arch/x86_64/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c index 47496a40e84f..47496a40e84f 100644 --- a/arch/x86_64/kernel/genapic_64.c +++ b/arch/x86/kernel/genapic_64.c diff --git a/arch/x86_64/kernel/genapic_flat_64.c b/arch/x86/kernel/genapic_flat_64.c index ecb01eefdd27..ecb01eefdd27 100644 --- a/arch/x86_64/kernel/genapic_flat_64.c +++ b/arch/x86/kernel/genapic_flat_64.c diff --git a/arch/x86_64/kernel/head64.c b/arch/x86/kernel/head64.c index 6c34bdd22e26..6c34bdd22e26 100644 --- a/arch/x86_64/kernel/head64.c +++ b/arch/x86/kernel/head64.c diff --git a/arch/x86_64/kernel/head_64.S b/arch/x86/kernel/head_64.S index b6167fe3330e..b6167fe3330e 100644 --- a/arch/x86_64/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S diff --git a/arch/x86_64/kernel/hpet_64.c b/arch/x86/kernel/hpet_64.c index e2d1b912e154..e2d1b912e154 100644 --- a/arch/x86_64/kernel/hpet_64.c +++ b/arch/x86/kernel/hpet_64.c diff --git a/arch/x86_64/kernel/i387_64.c b/arch/x86/kernel/i387_64.c index 1d58c13bc6bc..1d58c13bc6bc 100644 --- a/arch/x86_64/kernel/i387_64.c +++ b/arch/x86/kernel/i387_64.c diff --git a/arch/x86_64/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c index 948cae646099..948cae646099 100644 --- a/arch/x86_64/kernel/i8259_64.c +++ b/arch/x86/kernel/i8259_64.c diff --git a/arch/x86_64/kernel/init_task_64.c b/arch/x86/kernel/init_task_64.c index 4ff33d4f8551..4ff33d4f8551 100644 --- a/arch/x86_64/kernel/init_task_64.c +++ b/arch/x86/kernel/init_task_64.c diff --git a/arch/x86_64/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c index 966fa1062491..966fa1062491 100644 --- a/arch/x86_64/kernel/io_apic_64.c +++ b/arch/x86/kernel/io_apic_64.c diff --git a/arch/x86_64/kernel/ioport_64.c b/arch/x86/kernel/ioport_64.c index 653efa30b0f4..653efa30b0f4 100644 --- a/arch/x86_64/kernel/ioport_64.c +++ b/arch/x86/kernel/ioport_64.c diff --git a/arch/x86_64/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index 39cb3fa83ebb..39cb3fa83ebb 100644 --- a/arch/x86_64/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c diff --git a/arch/x86_64/kernel/k8.c b/arch/x86/kernel/k8.c index 7377ccb21335..7377ccb21335 100644 --- a/arch/x86_64/kernel/k8.c +++ b/arch/x86/kernel/k8.c diff --git a/arch/x86_64/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c index a30e004682e2..a30e004682e2 100644 --- a/arch/x86_64/kernel/kprobes_64.c +++ b/arch/x86/kernel/kprobes_64.c diff --git a/arch/x86_64/kernel/ldt_64.c b/arch/x86/kernel/ldt_64.c index bc9ffd5c19cc..bc9ffd5c19cc 100644 --- a/arch/x86_64/kernel/ldt_64.c +++ b/arch/x86/kernel/ldt_64.c diff --git a/arch/x86_64/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c index c3a554703672..c3a554703672 100644 --- a/arch/x86_64/kernel/machine_kexec_64.c +++ b/arch/x86/kernel/machine_kexec_64.c diff --git a/arch/x86_64/kernel/mce_64.c b/arch/x86/kernel/mce_64.c index a66d607f5b92..a66d607f5b92 100644 --- a/arch/x86_64/kernel/mce_64.c +++ b/arch/x86/kernel/mce_64.c diff --git a/arch/x86_64/kernel/mce_amd_64.c b/arch/x86/kernel/mce_amd_64.c index 2f8a7f18b0fe..2f8a7f18b0fe 100644 --- a/arch/x86_64/kernel/mce_amd_64.c +++ b/arch/x86/kernel/mce_amd_64.c diff --git a/arch/x86_64/kernel/mce_intel_64.c b/arch/x86/kernel/mce_intel_64.c index 6551505d8a2c..6551505d8a2c 100644 --- a/arch/x86_64/kernel/mce_intel_64.c +++ b/arch/x86/kernel/mce_intel_64.c diff --git a/arch/x86_64/kernel/module_64.c b/arch/x86/kernel/module_64.c index a888e67f5874..a888e67f5874 100644 --- a/arch/x86_64/kernel/module_64.c +++ b/arch/x86/kernel/module_64.c diff --git a/arch/x86_64/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c index 8bf0ca03ac8e..8bf0ca03ac8e 100644 --- a/arch/x86_64/kernel/mpparse_64.c +++ b/arch/x86/kernel/mpparse_64.c diff --git a/arch/x86_64/kernel/nmi_64.c b/arch/x86/kernel/nmi_64.c index 0ec6d2ddb931..0ec6d2ddb931 100644 --- a/arch/x86_64/kernel/nmi_64.c +++ b/arch/x86/kernel/nmi_64.c diff --git a/arch/x86_64/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 71da01e73f03..71da01e73f03 100644 --- a/arch/x86_64/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c diff --git a/arch/x86_64/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c index 29711445c818..29711445c818 100644 --- a/arch/x86_64/kernel/pci-dma_64.c +++ b/arch/x86/kernel/pci-dma_64.c diff --git a/arch/x86_64/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index 4918c575d582..4918c575d582 100644 --- a/arch/x86_64/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c diff --git a/arch/x86_64/kernel/pci-nommu_64.c b/arch/x86/kernel/pci-nommu_64.c index 2a34c6c025a9..2a34c6c025a9 100644 --- a/arch/x86_64/kernel/pci-nommu_64.c +++ b/arch/x86/kernel/pci-nommu_64.c diff --git a/arch/x86_64/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c index b2f405ea7c85..b2f405ea7c85 100644 --- a/arch/x86_64/kernel/pci-swiotlb_64.c +++ b/arch/x86/kernel/pci-swiotlb_64.c diff --git a/arch/x86_64/kernel/pmtimer_64.c b/arch/x86/kernel/pmtimer_64.c index ae8f91214f15..ae8f91214f15 100644 --- a/arch/x86_64/kernel/pmtimer_64.c +++ b/arch/x86/kernel/pmtimer_64.c diff --git a/arch/x86_64/kernel/process_64.c b/arch/x86/kernel/process_64.c index 98956555450b..98956555450b 100644 --- a/arch/x86_64/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c diff --git a/arch/x86_64/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c index eea3702427b4..eea3702427b4 100644 --- a/arch/x86_64/kernel/ptrace_64.c +++ b/arch/x86/kernel/ptrace_64.c diff --git a/arch/x86_64/kernel/reboot_64.c b/arch/x86/kernel/reboot_64.c index 368db2b9c5ac..368db2b9c5ac 100644 --- a/arch/x86_64/kernel/reboot_64.c +++ b/arch/x86/kernel/reboot_64.c diff --git a/arch/x86_64/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S index 14e95872c6a3..14e95872c6a3 100644 --- a/arch/x86_64/kernel/relocate_kernel_64.S +++ b/arch/x86/kernel/relocate_kernel_64.S diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86/kernel/setup64.c index 1200aaac403e..1200aaac403e 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86/kernel/setup64.c diff --git a/arch/x86_64/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index af838f6b0b7f..af838f6b0b7f 100644 --- a/arch/x86_64/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c diff --git a/arch/x86_64/kernel/signal_64.c b/arch/x86/kernel/signal_64.c index 739175b01e06..739175b01e06 100644 --- a/arch/x86_64/kernel/signal_64.c +++ b/arch/x86/kernel/signal_64.c diff --git a/arch/x86_64/kernel/smp_64.c b/arch/x86/kernel/smp_64.c index df4a82812adb..df4a82812adb 100644 --- a/arch/x86_64/kernel/smp_64.c +++ b/arch/x86/kernel/smp_64.c diff --git a/arch/x86_64/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c index 32f50783edc8..32f50783edc8 100644 --- a/arch/x86_64/kernel/smpboot_64.c +++ b/arch/x86/kernel/smpboot_64.c diff --git a/arch/x86_64/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index cb9109113584..cb9109113584 100644 --- a/arch/x86_64/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c diff --git a/arch/x86_64/kernel/suspend_64.c b/arch/x86/kernel/suspend_64.c index 573c0a6e0ac6..573c0a6e0ac6 100644 --- a/arch/x86_64/kernel/suspend_64.c +++ b/arch/x86/kernel/suspend_64.c diff --git a/arch/x86_64/kernel/suspend_asm_64.S b/arch/x86/kernel/suspend_asm_64.S index 16d183f67bc1..16d183f67bc1 100644 --- a/arch/x86_64/kernel/suspend_asm_64.S +++ b/arch/x86/kernel/suspend_asm_64.S diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c index 4770b7a2052c..4770b7a2052c 100644 --- a/arch/x86_64/kernel/sys_x86_64.c +++ b/arch/x86/kernel/sys_x86_64.c diff --git a/arch/x86_64/kernel/syscall_64.c b/arch/x86/kernel/syscall_64.c index 63d592c276cc..63d592c276cc 100644 --- a/arch/x86_64/kernel/syscall_64.c +++ b/arch/x86/kernel/syscall_64.c diff --git a/arch/x86_64/kernel/tce_64.c b/arch/x86/kernel/tce_64.c index e3f2569b2c44..e3f2569b2c44 100644 --- a/arch/x86_64/kernel/tce_64.c +++ b/arch/x86/kernel/tce_64.c diff --git a/arch/x86_64/kernel/time_64.c b/arch/x86/kernel/time_64.c index 6d48a4e826d9..6d48a4e826d9 100644 --- a/arch/x86_64/kernel/time_64.c +++ b/arch/x86/kernel/time_64.c diff --git a/arch/x86_64/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S index 607983b0d27b..607983b0d27b 100644 --- a/arch/x86_64/kernel/trampoline_64.S +++ b/arch/x86/kernel/trampoline_64.S diff --git a/arch/x86_64/kernel/traps_64.c b/arch/x86/kernel/traps_64.c index 03888420775d..03888420775d 100644 --- a/arch/x86_64/kernel/traps_64.c +++ b/arch/x86/kernel/traps_64.c diff --git a/arch/x86_64/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c index 2a59bde663f2..2a59bde663f2 100644 --- a/arch/x86_64/kernel/tsc_64.c +++ b/arch/x86/kernel/tsc_64.c diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c index 12424629af87..355f5f506c81 100644 --- a/arch/x86/kernel/tsc_sync.c +++ b/arch/x86/kernel/tsc_sync.c @@ -1 +1,187 @@ -#include "../../x86_64/kernel/tsc_sync.c" +/* + * arch/x86_64/kernel/tsc_sync.c: check TSC synchronization. + * + * Copyright (C) 2006, Red Hat, Inc., Ingo Molnar + * + * We check whether all boot CPUs have their TSC's synchronized, + * print a warning if not and turn off the TSC clock-source. + * + * The warp-check is point-to-point between two CPUs, the CPU + * initiating the bootup is the 'source CPU', the freshly booting + * CPU is the 'target CPU'. + * + * Only two CPUs may participate - they can enter in any order. + * ( The serial nature of the boot logic and the CPU hotplug lock + * protects against more than 2 CPUs entering this code. ) + */ +#include <linux/spinlock.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/nmi.h> +#include <asm/tsc.h> + +/* + * Entry/exit counters that make sure that both CPUs + * run the measurement code at once: + */ +static __cpuinitdata atomic_t start_count; +static __cpuinitdata atomic_t stop_count; + +/* + * We use a raw spinlock in this exceptional case, because + * we want to have the fastest, inlined, non-debug version + * of a critical section, to be able to prove TSC time-warps: + */ +static __cpuinitdata raw_spinlock_t sync_lock = __RAW_SPIN_LOCK_UNLOCKED; +static __cpuinitdata cycles_t last_tsc; +static __cpuinitdata cycles_t max_warp; +static __cpuinitdata int nr_warps; + +/* + * TSC-warp measurement loop running on both CPUs: + */ +static __cpuinit void check_tsc_warp(void) +{ + cycles_t start, now, prev, end; + int i; + + start = get_cycles_sync(); + /* + * The measurement runs for 20 msecs: + */ + end = start + tsc_khz * 20ULL; + now = start; + + for (i = 0; ; i++) { + /* + * We take the global lock, measure TSC, save the + * previous TSC that was measured (possibly on + * another CPU) and update the previous TSC timestamp. + */ + __raw_spin_lock(&sync_lock); + prev = last_tsc; + now = get_cycles_sync(); + last_tsc = now; + __raw_spin_unlock(&sync_lock); + + /* + * Be nice every now and then (and also check whether + * measurement is done [we also insert a 100 million + * loops safety exit, so we dont lock up in case the + * TSC readout is totally broken]): + */ + if (unlikely(!(i & 7))) { + if (now > end || i > 100000000) + break; + cpu_relax(); + touch_nmi_watchdog(); + } + /* + * Outside the critical section we can now see whether + * we saw a time-warp of the TSC going backwards: + */ + if (unlikely(prev > now)) { + __raw_spin_lock(&sync_lock); + max_warp = max(max_warp, prev - now); + nr_warps++; + __raw_spin_unlock(&sync_lock); + } + + } +} + +/* + * Source CPU calls into this - it waits for the freshly booted + * target CPU to arrive and then starts the measurement: + */ +void __cpuinit check_tsc_sync_source(int cpu) +{ + int cpus = 2; + + /* + * No need to check if we already know that the TSC is not + * synchronized: + */ + if (unsynchronized_tsc()) + return; + + printk(KERN_INFO "checking TSC synchronization [CPU#%d -> CPU#%d]:", + smp_processor_id(), cpu); + + /* + * Reset it - in case this is a second bootup: + */ + atomic_set(&stop_count, 0); + + /* + * Wait for the target to arrive: + */ + while (atomic_read(&start_count) != cpus-1) + cpu_relax(); + /* + * Trigger the target to continue into the measurement too: + */ + atomic_inc(&start_count); + + check_tsc_warp(); + + while (atomic_read(&stop_count) != cpus-1) + cpu_relax(); + + /* + * Reset it - just in case we boot another CPU later: + */ + atomic_set(&start_count, 0); + + if (nr_warps) { + printk("\n"); + printk(KERN_WARNING "Measured %Ld cycles TSC warp between CPUs," + " turning off TSC clock.\n", max_warp); + mark_tsc_unstable("check_tsc_sync_source failed"); + nr_warps = 0; + max_warp = 0; + last_tsc = 0; + } else { + printk(" passed.\n"); + } + + /* + * Let the target continue with the bootup: + */ + atomic_inc(&stop_count); +} + +/* + * Freshly booted CPUs call into this: + */ +void __cpuinit check_tsc_sync_target(void) +{ + int cpus = 2; + + if (unsynchronized_tsc()) + return; + + /* + * Register this CPU's participation and wait for the + * source CPU to start the measurement: + */ + atomic_inc(&start_count); + while (atomic_read(&start_count) != cpus) + cpu_relax(); + + check_tsc_warp(); + + /* + * Ok, we are done: + */ + atomic_inc(&stop_count); + + /* + * Wait for the source CPU to print stuff: + */ + while (atomic_read(&stop_count) != cpus) + cpu_relax(); +} +#undef NR_LOOPS + diff --git a/arch/x86_64/kernel/verify_cpu_64.S b/arch/x86/kernel/verify_cpu_64.S index 45b6f8a975a1..45b6f8a975a1 100644 --- a/arch/x86_64/kernel/verify_cpu_64.S +++ b/arch/x86/kernel/verify_cpu_64.S diff --git a/arch/x86_64/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S index ba8ea97abd21..ba8ea97abd21 100644 --- a/arch/x86_64/kernel/vmlinux_64.lds.S +++ b/arch/x86/kernel/vmlinux_64.lds.S diff --git a/arch/x86_64/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c index 414caf0c5f9a..414caf0c5f9a 100644 --- a/arch/x86_64/kernel/vsmp_64.c +++ b/arch/x86/kernel/vsmp_64.c diff --git a/arch/x86_64/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index 06c34949bfdc..06c34949bfdc 100644 --- a/arch/x86_64/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c diff --git a/arch/x86_64/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c index 77c25b307635..77c25b307635 100644 --- a/arch/x86_64/kernel/x8664_ksyms_64.c +++ b/arch/x86/kernel/x8664_ksyms_64.c diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 189d80d3a891..afaf0f998878 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -21,6 +21,13 @@ # # $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $ +# Fill in SRCARCH +SRCARCH := x86 + +archprepare: + @mkdir -p ${objtree}/arch/x86/kernel + + LDFLAGS := -m elf_x86_64 OBJCOPYFLAGS := -O binary -R .note -R .comment -S LDFLAGS_vmlinux := @@ -71,10 +78,10 @@ CFLAGS += $(cflags-y) CFLAGS_KERNEL += $(cflags-kernel-y) AFLAGS += -m64 -head-y := arch/x86_64/kernel/head_64.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task_64.o +head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task_64.o libs-y += arch/x86/lib/ -core-y += arch/x86_64/kernel/ \ +core-y += arch/x86/kernel/ \ arch/x86/mm/ \ arch/x86/crypto/ \ arch/x86/vdso/ diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile deleted file mode 100644 index 577d08f4b8bb..000000000000 --- a/arch/x86_64/kernel/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -ifeq ($(CONFIG_X86_32),y) -include ${srctree}/arch/x86/kernel/Makefile_32 -else -include ${srctree}/arch/x86_64/kernel/Makefile_64 -endif diff --git a/arch/x86_64/kernel/asm-offsets.c b/arch/x86_64/kernel/asm-offsets.c deleted file mode 100644 index cfa82c899f47..000000000000 --- a/arch/x86_64/kernel/asm-offsets.c +++ /dev/null @@ -1,5 +0,0 @@ -#ifdef CONFIG_X86_32 -# include "asm-offsets_32.c" -#else -# include "asm-offsets_64.c" -#endif diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c deleted file mode 100644 index fd9aff3f3890..000000000000 --- a/arch/x86_64/kernel/early_printk.c +++ /dev/null @@ -1,259 +0,0 @@ -#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> - -/* 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); diff --git a/arch/x86_64/kernel/tsc_sync.c b/arch/x86_64/kernel/tsc_sync.c deleted file mode 100644 index 355f5f506c81..000000000000 --- a/arch/x86_64/kernel/tsc_sync.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * arch/x86_64/kernel/tsc_sync.c: check TSC synchronization. - * - * Copyright (C) 2006, Red Hat, Inc., Ingo Molnar - * - * We check whether all boot CPUs have their TSC's synchronized, - * print a warning if not and turn off the TSC clock-source. - * - * The warp-check is point-to-point between two CPUs, the CPU - * initiating the bootup is the 'source CPU', the freshly booting - * CPU is the 'target CPU'. - * - * Only two CPUs may participate - they can enter in any order. - * ( The serial nature of the boot logic and the CPU hotplug lock - * protects against more than 2 CPUs entering this code. ) - */ -#include <linux/spinlock.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <linux/nmi.h> -#include <asm/tsc.h> - -/* - * Entry/exit counters that make sure that both CPUs - * run the measurement code at once: - */ -static __cpuinitdata atomic_t start_count; -static __cpuinitdata atomic_t stop_count; - -/* - * We use a raw spinlock in this exceptional case, because - * we want to have the fastest, inlined, non-debug version - * of a critical section, to be able to prove TSC time-warps: - */ -static __cpuinitdata raw_spinlock_t sync_lock = __RAW_SPIN_LOCK_UNLOCKED; -static __cpuinitdata cycles_t last_tsc; -static __cpuinitdata cycles_t max_warp; -static __cpuinitdata int nr_warps; - -/* - * TSC-warp measurement loop running on both CPUs: - */ -static __cpuinit void check_tsc_warp(void) -{ - cycles_t start, now, prev, end; - int i; - - start = get_cycles_sync(); - /* - * The measurement runs for 20 msecs: - */ - end = start + tsc_khz * 20ULL; - now = start; - - for (i = 0; ; i++) { - /* - * We take the global lock, measure TSC, save the - * previous TSC that was measured (possibly on - * another CPU) and update the previous TSC timestamp. - */ - __raw_spin_lock(&sync_lock); - prev = last_tsc; - now = get_cycles_sync(); - last_tsc = now; - __raw_spin_unlock(&sync_lock); - - /* - * Be nice every now and then (and also check whether - * measurement is done [we also insert a 100 million - * loops safety exit, so we dont lock up in case the - * TSC readout is totally broken]): - */ - if (unlikely(!(i & 7))) { - if (now > end || i > 100000000) - break; - cpu_relax(); - touch_nmi_watchdog(); - } - /* - * Outside the critical section we can now see whether - * we saw a time-warp of the TSC going backwards: - */ - if (unlikely(prev > now)) { - __raw_spin_lock(&sync_lock); - max_warp = max(max_warp, prev - now); - nr_warps++; - __raw_spin_unlock(&sync_lock); - } - - } -} - -/* - * Source CPU calls into this - it waits for the freshly booted - * target CPU to arrive and then starts the measurement: - */ -void __cpuinit check_tsc_sync_source(int cpu) -{ - int cpus = 2; - - /* - * No need to check if we already know that the TSC is not - * synchronized: - */ - if (unsynchronized_tsc()) - return; - - printk(KERN_INFO "checking TSC synchronization [CPU#%d -> CPU#%d]:", - smp_processor_id(), cpu); - - /* - * Reset it - in case this is a second bootup: - */ - atomic_set(&stop_count, 0); - - /* - * Wait for the target to arrive: - */ - while (atomic_read(&start_count) != cpus-1) - cpu_relax(); - /* - * Trigger the target to continue into the measurement too: - */ - atomic_inc(&start_count); - - check_tsc_warp(); - - while (atomic_read(&stop_count) != cpus-1) - cpu_relax(); - - /* - * Reset it - just in case we boot another CPU later: - */ - atomic_set(&start_count, 0); - - if (nr_warps) { - printk("\n"); - printk(KERN_WARNING "Measured %Ld cycles TSC warp between CPUs," - " turning off TSC clock.\n", max_warp); - mark_tsc_unstable("check_tsc_sync_source failed"); - nr_warps = 0; - max_warp = 0; - last_tsc = 0; - } else { - printk(" passed.\n"); - } - - /* - * Let the target continue with the bootup: - */ - atomic_inc(&stop_count); -} - -/* - * Freshly booted CPUs call into this: - */ -void __cpuinit check_tsc_sync_target(void) -{ - int cpus = 2; - - if (unsynchronized_tsc()) - return; - - /* - * Register this CPU's participation and wait for the - * source CPU to start the measurement: - */ - atomic_inc(&start_count); - while (atomic_read(&start_count) != cpus) - cpu_relax(); - - check_tsc_warp(); - - /* - * Ok, we are done: - */ - atomic_inc(&stop_count); - - /* - * Wait for the source CPU to print stuff: - */ - while (atomic_read(&stop_count) != cpus) - cpu_relax(); -} -#undef NR_LOOPS - diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S deleted file mode 100644 index 849ee611f013..000000000000 --- a/arch/x86_64/kernel/vmlinux.lds.S +++ /dev/null @@ -1,5 +0,0 @@ -#ifdef CONFIG_X86_32 -# include "vmlinux_32.lds.S" -#else -# include "vmlinux_64.lds.S" -#endif |