Commit 4ee6539d authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds

[PATCH] x86-64 next sync for 2.5.9

This patch fixes up some lose ends left over from the last x86-64 jumbo merge.

 - make it compile again. ia32_ioctl was referencing IDE ioctls that got
   remove in a merge race
 - Use the memset/FXRSTOR way to initialize the FPU, as discussed.
 - Fix semctl/shmctl ABI (thanks to Andreas Schwab)
 - Other minor fixes.
parent 4f6101d7
......@@ -15,6 +15,8 @@ define_bool CONFIG_RWSEM_GENERIC_SPINLOCK y
define_bool CONFIG_RWSEM_XCHGADD_ALGORITHM n
define_bool CONFIG_X86_CMPXCHG y
define_bool CONFIG_EARLY_PRINTK y
source init/Config.in
mainmenu_option next_comment
......@@ -210,12 +212,8 @@ if [ "$CONFIG_DEBUG_KERNEL" != "n" ]; then
# bool ' Memory mapped I/O debugging' CONFIG_DEBUG_IOVIRT
bool ' Magic SysRq key' CONFIG_MAGIC_SYSRQ
bool ' Spinlock debugging' CONFIG_DEBUG_SPINLOCK
bool ' Early printk' CONFIG_EARLY_PRINTK
bool ' Additional run-time checks' CONFIG_CHECKING
bool ' Debug __init statements' CONFIG_INIT_DEBUG
#if [ "$CONFIG_SERIAL_CONSOLE" = "y" ]; then
# bool 'Early serial console (ttyS0)' CONFIG_EARLY_SERIAL_CONSOLE
#fi
fi
endmenu
......
......@@ -9,6 +9,7 @@ CONFIG_UID16=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_X86_CMPXCHG=y
CONFIG_EARLY_PRINTK=y
#
# Code maturity level options
......@@ -282,7 +283,7 @@ CONFIG_IDEDMA_AUTO=y
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
# CONFIG_ISDN_BOOL is not set
#
# Old CD-ROM drivers (not SCSI, not IDE)
......@@ -430,6 +431,7 @@ CONFIG_EXT2_FS=y
# CONFIG_NFSD_TCP is not set
# CONFIG_SUNRPC is not set
# CONFIG_LOCKD is not set
# CONFIG_EXPORTFS is not set
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
......@@ -484,7 +486,6 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SLAB is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_EARLY_PRINTK is not set
# CONFIG_CHECKING is not set
# CONFIG_INIT_DEBUG is not set
......
......@@ -3182,7 +3182,6 @@ COMPATIBLE_IOCTL(FIGETBSZ)
*/
COMPATIBLE_IOCTL(HDIO_GET_IDENTITY)
COMPATIBLE_IOCTL(HDIO_SET_DMA)
COMPATIBLE_IOCTL(HDIO_SET_KEEPSETTINGS)
COMPATIBLE_IOCTL(HDIO_SET_UNMASKINTR)
COMPATIBLE_IOCTL(HDIO_SET_NOWERR)
COMPATIBLE_IOCTL(HDIO_SET_32BIT)
......@@ -3742,7 +3741,6 @@ HANDLE_IOCTL(BLKSECTGET, w_long)
HANDLE_IOCTL(BLKPG, blkpg_ioctl_trans)
HANDLE_IOCTL(FBIOGETCMAP, fb_ioctl_trans)
HANDLE_IOCTL(FBIOPUTCMAP, fb_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_KEEPSETTINGS, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_UNMASKINTR, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_DMA, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_32BIT, hdio_ioctl_trans)
......
#define printk real_printk
#include <linux/console.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/string.h>
#include <asm/io.h>
#undef printk
/* Simple VGA output */
#define VGABASE 0xffffffff800b8000ul /* This is "wrong" address to access it, we should access it using 0xffff8000000b8000ul; but 0xffff8000000b8000ul is not available early at boot. */
#define VGABASE 0xffffffff800b8000UL
#define MAX_YPOS 25
#define MAX_XPOS 80
static int current_ypos = 1, current_xpos = 0; /* We want to print before clearing BSS */
static int current_ypos = 1, current_xpos = 0;
void
early_clear (void)
{
int k, i;
for(k = 0; k < MAX_YPOS; k++)
for(i = 0; i < MAX_XPOS; i++)
writew(0, VGABASE + 2*(MAX_XPOS*k + i));
current_ypos = 0;
}
void
early_puts (const char *str)
static void early_vga_write(struct console *con, const char *str, unsigned n)
{
char c;
int i, k, j;
while ((c = *str++) != '\0') {
while ((c = *str++) != '\0' && n-- > 0) {
if (current_ypos >= MAX_YPOS) {
#if 1
/* scroll 1 line up */
for(k = 1, j = 0; k < MAX_YPOS; k++, j++) {
for(i = 0; i < MAX_XPOS; i++) {
......@@ -40,11 +31,6 @@ early_puts (const char *str)
writew(0x720, VGABASE + 2*(MAX_XPOS*j + i));
}
current_ypos = MAX_YPOS-1;
#else
/* MUCH faster */
early_clear();
current_ypos = 0;
#endif
}
if (c == '\n') {
current_xpos = 0;
......@@ -60,20 +46,144 @@ early_puts (const char *str)
}
}
static char buf[1024];
static struct console early_vga_console = {
name: "earlyvga",
write: early_vga_write,
flags: CON_PRINTBUFFER,
index: -1,
};
/* Serial functions losely based on a similar package from Klaus P. Gerlicher */
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 */
int printk(const char *fmt, ...) __attribute__((alias("early_printk")));
static int early_serial_putc(unsigned char ch)
{
unsigned timeout = 0xffff;
while ((inb(early_serial_base + LSR) & XMTRDY) == 0 && --timeout)
rep_nop();
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) {
early_serial_putc(*s);
if (*s == '\n')
early_serial_putc('\r');
s++;
}
}
int early_printk(const char *fmt, ...)
static __init void early_serial_init(char *opt)
{
va_list args;
int i;
static int bases[] = { 0x3f8, 0x2f8 };
unsigned char c;
unsigned divisor, baud = 38400;
char *s, *e;
va_start(args, fmt);
i = vsprintf(buf, fmt, args); /* hopefully i < sizeof(buf)-4 */
va_end(args);
s = strsep(&opt, ",");
if (s != NULL) {
unsigned port;
++s;
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];
}
early_puts(buf);
c = inb(early_serial_base + LCR);
outb(c & ~DLAB, early_serial_base + LCR);
outb(0, early_serial_base + IER); /* no interrupt */
outb(0, early_serial_base + FCR); /* no fifo */
outb(0x3, early_serial_base + LCR); /* 8n1 */
outb(0x3, early_serial_base + MCR); /* DTR + RTS */
return i;
s = strsep(&opt, ",");
if (s != NULL) {
baud = simple_strtoul(s, &e, 0);
if (baud == 0 || s == e)
baud = 38400;
}
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,
};
/* 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 = vsnprintf(buf,512,fmt,ap);
early_console->write(early_console,buf,n);
va_end(ap);
}
int __init setup_early_printk(char *opt)
{
if (early_console_initialized)
return;
early_console_initialized = 1;
if (!strncmp(opt, "serial", 6)) {
early_serial_init(opt+7);
early_console = &early_serial_console;
} else if (!strncmp(opt, "vga", 3))
early_console = &early_vga_console;
else
return -1;
register_console(early_console);
return 0;
}
void __init disable_early_printk(void)
{
if (early_console_initialized) {
unregister_console(early_console);
early_console_initialized = 0;
}
}
/* syntax: earlyprintk=vga
earlyprintk=serial[,ttySn[,baudrate]]
Only vga or serial at a time, not both.
Currently only ttyS0 and ttyS1 are supported.
Interaction with the standard serial driver is not very good.
The VGA output is eventually overwritten by the real console. */
__setup("earlyprintk=", setup_early_printk);
......@@ -42,40 +42,6 @@ void __init fpu_init(void)
write_cr0(oldcr0 & ~((1UL<<3)|(1UL<<2))); /* clear TS and EM */
asm("fninit");
load_mxcsr(0x1f80);
/* initialize MMX state. normally this will be covered by fninit, but the
architecture doesn't guarantee it so do it explicitely. */
asm volatile("movq %0,%%mm0\n\t"
"movq %%mm0,%%mm1\n\t"
"movq %%mm0,%%mm2\n\t"
"movq %%mm0,%%mm3\n\t"
"movq %%mm0,%%mm4\n\t"
"movq %%mm0,%%mm5\n\t"
"movq %%mm0,%%mm6\n\t"
"movq %%mm0,%%mm7\n\t" :: "m" (0ULL));
asm("emms");
/* initialize XMM state */
asm("xorpd %xmm0,%xmm0");
asm("xorpd %xmm1,%xmm1");
asm("xorpd %xmm2,%xmm2");
asm("xorpd %xmm3,%xmm3");
asm("xorpd %xmm4,%xmm4");
asm("xorpd %xmm5,%xmm5");
asm("xorpd %xmm6,%xmm6");
asm("xorpd %xmm7,%xmm7");
asm("xorpd %xmm8,%xmm8");
asm("xorpd %xmm9,%xmm9");
asm("xorpd %xmm10,%xmm10");
asm("xorpd %xmm11,%xmm11");
asm("xorpd %xmm12,%xmm12");
asm("xorpd %xmm13,%xmm13");
asm("xorpd %xmm14,%xmm14");
asm("xorpd %xmm15,%xmm15");
load_mxcsr(0x1f80);
asm volatile("fxsave %0" : "=m" (init_fpu_env));
/* clean state in init */
stts();
clear_thread_flag(TIF_USEDFPU);
......@@ -89,13 +55,11 @@ void __init fpu_init(void)
*/
void init_fpu(void)
{
#if 0
asm("fninit");
load_mxcsr(0x1f80);
#else
asm volatile("fxrstor %0" :: "m" (init_fpu_env));
#endif
current->used_math = 1;
struct task_struct *me = current;
memset(&me->thread.i387.fxsave, 0, sizeof(struct i387_fxsave_struct));
me->thread.i387.fxsave.cwd = 0x37f;
me->thread.i387.fxsave.mxcsr = 0x1f80;
me->used_math = 1;
}
/*
......
......@@ -114,19 +114,8 @@ asmlinkage long sys_pause(void)
return -ERESTARTNOHAND;
}
asmlinkage long wrap_sys_shmat(int shmid, char *shmaddr, int shmflg,
unsigned long *raddr_user)
asmlinkage long wrap_sys_shmat(int shmid, char *shmaddr, int shmflg)
{
unsigned long raddr;
return sys_shmat(shmid,shmaddr,shmflg,&raddr) ?: put_user(raddr,raddr_user);
}
asmlinkage long wrap_sys_semctl(int semid, int semnum, int cmd, unsigned long *ptr)
{
unsigned long val;
/* XXX: for cmd==SETVAL the manpage says ptr is the value directly. i386
seems to always get it via a pointer. Follow i386 here. Check this. */
if (get_user(val, ptr))
return -EFAULT;
return sys_semctl(semid, semnum, cmd, (union semun)(void *)val);
return sys_shmat(shmid,shmaddr,shmflg,&raddr) ?: raddr;
}
......@@ -736,11 +736,9 @@ asmlinkage void math_state_restore(void)
struct task_struct *me = current;
clts(); /* Allow maths ops (or we recurse) */
if (me->used_math) {
restore_fpu_checking(&me->thread.i387.fxsave);
} else {
if (!me->used_math)
init_fpu();
}
restore_fpu_checking(&me->thread.i387.fxsave);
set_thread_flag(TIF_USEDFPU);
}
......
......@@ -85,7 +85,7 @@ void dump_pagetable(unsigned long address)
}
int page_fault_trace;
int exception_trace = 1;
int exception_trace;
/*
* This routine handles page faults. It determines the address,
......
......@@ -153,7 +153,7 @@ __SYSCALL(__NR_semget, sys_semget)
#define __NR_semop 65
__SYSCALL(__NR_semop, sys_semop)
#define __NR_semctl 66
__SYSCALL(__NR_semctl, wrap_sys_semctl)
__SYSCALL(__NR_semctl, sys_semctl)
#define __NR_shmdt 67
__SYSCALL(__NR_shmdt, sys_shmdt)
#define __NR_msgget 68
......
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