Commit a1abbd62 authored by Richard Henderson's avatar Richard Henderson

Merge are.twiddle.net:/home/rth/BK/linus-2.5

into are.twiddle.net:/home/rth/BK/axp-2.5
parents 716041cc 95f287fe
......@@ -251,6 +251,10 @@ CONFIG_ALPHA_PRIMO
CONFIG_ALPHA_GAMMA
Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
CONFIG_ALPHA_EV67
Is this a machine based on the EV67 core? If in doubt, select N here
and the machine will be treated as an EV6.
CONFIG_ALPHA_SRM
There are two different types of booting firmware on Alphas: SRM,
which is command line driven, and ARC, which uses menus and arrow
......@@ -610,3 +614,14 @@ CONFIG_DEBUG_SPINLOCK
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
CONFIG_DEBUG_RWLOCK
If you say Y here then read-write lock processing will count how many
times it has tried to get the lock and issue an error message after
too many attempts. If you suspect a rwlock problem or a kernel
hacker asks for this option then say Y. Otherwise say N.
CONFIG_DEBUG_SEMAPHORE
If you say Y here then semaphore processing will issue lots of
verbose debugging messages. If you suspect a semaphore problem or a
kernel hacker asks for this option then say Y. Otherwise say N.
......@@ -99,30 +99,32 @@ export libs-y
MAKEBOOT = $(MAKE) -C arch/alpha/boot
rawboot:
rawboot: vmlinux
@$(MAKEBOOT) rawboot
boot: vmlinux
@$(MAKEBOOT)
#
# My boot writes directly to a specific disk partition, I doubt most
# people will want to do that without changes..
#
msb my-special-boot:
msb my-special-boot: vmlinux
@$(MAKEBOOT) msb
bootimage:
bootimage: vmlinux
@$(MAKEBOOT) bootimage
srmboot:
srmboot: vmlinux
@$(MAKEBOOT) srmboot
archclean:
@$(MAKE) -C arch/alpha/kernel clean
@$(MAKEBOOT) clean
archmrproper:
rm -f include/asm-alpha/asm_offsets.h
bootpfile:
bootpfile: vmlinux
@$(MAKEBOOT) bootpfile
......
......@@ -8,7 +8,9 @@
# Copyright (C) 1994 by Linus Torvalds
#
LINKFLAGS = -static -T bootloader.lds #-N -relax
LINKFLAGS = -static -T bootloader.lds -uvsprintf #-N -relax
CFLAGS := $(CFLAGS) -I$(TOPDIR)/include
.S.s:
$(CPP) $(AFLAGS) -traditional -o $*.o $<
......
......@@ -8,8 +8,9 @@ EXTRA_AFLAGS := $(CFLAGS)
export-objs := alpha_ksyms.o
obj-y := entry.o traps.o process.o init_task.o osf_sys.o irq.o irq_alpha.o \
signal.o setup.o ptrace.o time.o semaphore.o alpha_ksyms.o
obj-y := entry.o traps.o process.o init_task.o osf_sys.o irq.o \
irq_alpha.o signal.o setup.o ptrace.o time.o semaphore.o \
alpha_ksyms.o systbls.o
#
# FIXME!
......
......@@ -161,7 +161,6 @@ EXPORT_SYMBOL(sys_read);
EXPORT_SYMBOL(sys_lseek);
EXPORT_SYMBOL(__kernel_execve);
EXPORT_SYMBOL(sys_setsid);
EXPORT_SYMBOL(sys_sync);
EXPORT_SYMBOL(sys_wait4);
/* Networking helper routines. */
......
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......@@ -191,26 +191,13 @@ machine_power_off(void)
common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
}
/* Used by sysrq-p, among others. I don't believe r9-r15 are ever
saved in the context it's used. */
void
show_regs(struct pt_regs * regs)
show_regs(struct pt_regs *regs)
{
printk("\n");
printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
printk("ps: %04lx pc: [<%016lx>] CPU %d %s\n",
regs->ps, regs->pc, smp_processor_id(), print_tainted());
printk("rp: [<%016lx>] sp: %p\n", regs->r26, regs+1);
printk(" r0: %016lx r1: %016lx r2: %016lx r3: %016lx\n",
regs->r0, regs->r1, regs->r2, regs->r3);
printk(" r4: %016lx r5: %016lx r6: %016lx r7: %016lx\n",
regs->r4, regs->r5, regs->r6, regs->r7);
printk(" r8: %016lx r16: %016lx r17: %016lx r18: %016lx\n",
regs->r8, regs->r16, regs->r17, regs->r18);
printk("r19: %016lx r20: %016lx r21: %016lx r22: %016lx\n",
regs->r19, regs->r20, regs->r21, regs->r22);
printk("r23: %016lx r24: %016lx r25: %016lx r26: %016lx\n",
regs->r23, regs->r24, regs->r25, regs->r26);
printk("r27: %016lx r28: %016lx r29: %016lx hae: %016lx\n",
regs->r27, regs->r28, regs->gp, regs->hae);
dik_show_regs(regs, 0);
}
/*
......
......@@ -37,6 +37,11 @@
#include <linux/blk.h>
#endif
#ifdef CONFIG_MAGIC_SYSRQ
#include <linux/sysrq.h>
#include <linux/reboot.h>
#endif
#include <linux/notifier.h>
extern struct notifier_block *panic_notifier_list;
static int alpha_panic_event(struct notifier_block *, unsigned long, void *);
......@@ -539,6 +544,15 @@ setup_arch(char **cmdline_p)
register_srm_console();
}
#ifdef CONFIG_MAGIC_SYSRQ
/* If we're using SRM, make sysrq-b halt back to the prom,
not auto-reboot. */
if (alpha_using_srm) {
struct sysrq_key_op *op = __sysrq_get_key_op('b');
op->handler = (void *) machine_halt;
}
#endif
/*
* Indentify and reconfigure for the current system.
*/
......
This diff is collapsed.
......@@ -51,14 +51,16 @@ obj-$(CONFIG_SMP) += dec_and_lock.o
include $(TOPDIR)/Rules.make
__divqu.o: $(ev6)divide.S
$(CC) $(AFLAGS) -DDIV -c -o __divqu.o $(ev6)divide.S
$(obj)/__divqu.o: $(obj)/$(ev6)divide.S
$(CC) $(AFLAGS) -DDIV -c -o $(obj)/__divqu.o $(obj)/$(ev6)divide.S
__remqu.o: $(ev6)divide.S
$(CC) $(AFLAGS) -DREM -c -o __remqu.o $(ev6)divide.S
$(obj)/__remqu.o: $(obj)/$(ev6)divide.S
$(CC) $(AFLAGS) -DREM -c -o $(obj)/__remqu.o $(obj)/$(ev6)divide.S
__divlu.o: $(ev6)divide.S
$(CC) $(AFLAGS) -DDIV -DINTSIZE -c -o __divlu.o $(ev6)divide.S
$(obj)/__divlu.o: $(obj)/$(ev6)divide.S
$(CC) $(AFLAGS) -DDIV -DINTSIZE \
-c -o $(obj)/__divlu.o $(obj)/$(ev6)divide.S
__remlu.o: $(ev6)divide.S
$(CC) $(AFLAGS) -DREM -DINTSIZE -c -o __remlu.o $(ev6)divide.S
$(obj)/__remlu.o: $(obj)/$(ev6)divide.S
$(CC) $(AFLAGS) -DREM -DINTSIZE \
-c -o $(obj)/__remlu.o $(obj)/$(ev6)divide.S
......@@ -125,11 +125,10 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
goto bad_area;
if (expand_stack(vma, address))
goto bad_area;
/*
* Ok, we have a good vm_area for this memory access, so
* we can handle it..
*/
good_area:
/* Ok, we have a good vm_area for this memory access, so
we can handle it. */
good_area:
if (cause < 0) {
if (!(vma->vm_flags & VM_EXEC))
goto bad_area;
......@@ -143,11 +142,9 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
}
survive:
/*
* If for any reason at all we couldn't handle the fault,
* make sure we exit gracefully rather than endlessly redo
* the fault.
*/
/* If for any reason at all we couldn't handle the fault,
make sure we exit gracefully rather than endlessly redo
the fault. */
fault = handle_mm_fault(mm, vma, address, cause > 0);
up_read(&mm->mmap_sem);
......@@ -155,14 +152,11 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
goto out_of_memory;
if (fault == 0)
goto do_sigbus;
return;
/*
* Something tried to access memory that isn't in our memory map..
* Fix it, but check if it's kernel or user first..
*/
bad_area:
/* Something tried to access memory that isn't in our memory map.
Fix it, but check if it's kernel or user first. */
bad_area:
up_read(&mm->mmap_sem);
if (user_mode(regs)) {
......@@ -170,7 +164,7 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
return;
}
no_context:
no_context:
/* Are we prepared to handle this fault as an exception? */
if ((fixup = search_exception_table(regs->pc, regs->gp)) != 0) {
unsigned long newpc;
......@@ -183,20 +177,16 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
return;
}
/*
* Oops. The kernel tried to access some bad page. We'll have to
* terminate things with extreme prejudice.
*/
/* Oops. The kernel tried to access some bad page. We'll have to
terminate things with extreme prejudice. */
printk(KERN_ALERT "Unable to handle kernel paging request at "
"virtual address %016lx\n", address);
die_if_kernel("Oops", regs, cause, (unsigned long*)regs - 16);
do_exit(SIGKILL);
/*
* We ran out of memory, or some other thing happened to us that made
* us unable to handle the page fault gracefully.
*/
out_of_memory:
/* We ran out of memory, or some other thing happened to us that
made us unable to handle the page fault gracefully. */
out_of_memory:
if (current->pid == 1) {
yield();
down_read(&mm->mmap_sem);
......@@ -208,18 +198,16 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
goto no_context;
do_exit(SIGKILL);
do_sigbus:
/*
* Send a sigbus, regardless of whether we were in kernel
* or user mode.
*/
do_sigbus:
/* Send a sigbus, regardless of whether we were in kernel
or user mode. */
force_sig(SIGBUS, current);
if (!user_mode(regs))
goto no_context;
return;
#ifdef CONFIG_ALPHA_LARGE_VMALLOC
vmalloc_fault:
vmalloc_fault:
if (user_mode(regs)) {
force_sig(SIGSEGV, current);
return;
......
......@@ -58,10 +58,11 @@ SECTIONS
__initcall_end = .;
}
. = ALIGN(64);
.data.percpu ALIGN(64): {
__per_cpu_start = .;
.data.percpu : { *(.data.percpu) }
*(.data.percpu)
__per_cpu_end = .;
}
/* The initial task and kernel stack */
.data.init_thread ALIGN(2*8192) : {
......
......@@ -45,7 +45,7 @@
#define PAL_wrperfmon 57
#define PAL_rdusp 58
#define PAL_whami 60
#define PAL_rtsys 61
#define PAL_retsys 61
#define PAL_rti 63
#endif /* __ALPHA_PAL_H */
......@@ -343,7 +343,7 @@
#define __NR_alloc_hugepages 403
#define __NR_free_hugepages 404
#define __NR_exit_group 405
#define NR_SYSCALLS 406
#if defined(__GNUC__)
......@@ -598,7 +598,7 @@ static inline pid_t waitpid(int pid, int * wait_stat, int flags)
return sys_wait4(pid, wait_stat, flags, NULL);
}
#endif
#endif /* __KERNEL_SYSCALLS__ */
/*
* "Conditional" syscalls
......
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