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authorLinus Torvalds <torvalds@linux-foundation.org>2008-05-20 17:21:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-20 17:21:32 -0700
commit789319db76ccb8f61d2f6a91d2f2fcb70edae9c5 (patch)
tree9f00eee8fbeec58c0a5ee6c9ebb8906e8a832670 /arch/sparc64
parentfd9908c078b30db393e9855fb96f804793af23ba (diff)
parent93dae5b70e7c1c8e927d22e1c20a941ca376906a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Add global register dumping facility. sparc: remove CVS keywords sparc64: remove CVS keywords
Diffstat (limited to 'arch/sparc64')
-rw-r--r--arch/sparc64/Makefile1
-rw-r--r--arch/sparc64/boot/Makefile1
-rw-r--r--arch/sparc64/boot/piggyback.c2
-rw-r--r--arch/sparc64/kernel/dtlb_prot.S2
-rw-r--r--arch/sparc64/kernel/ebus.c2
-rw-r--r--arch/sparc64/kernel/etrap.S2
-rw-r--r--arch/sparc64/kernel/idprom.c2
-rw-r--r--arch/sparc64/kernel/process.c117
-rw-r--r--arch/sparc64/kernel/rtrap.S2
-rw-r--r--arch/sparc64/kernel/sbus.c2
-rw-r--r--arch/sparc64/kernel/setup.c2
-rw-r--r--arch/sparc64/kernel/signal.c2
-rw-r--r--arch/sparc64/kernel/smp.c10
-rw-r--r--arch/sparc64/kernel/starfire.c2
-rw-r--r--arch/sparc64/kernel/sys32.S2
-rw-r--r--arch/sparc64/kernel/trampoline.S2
-rw-r--r--arch/sparc64/kernel/unaligned.c2
-rw-r--r--arch/sparc64/lib/PeeCeeI.c2
-rw-r--r--arch/sparc64/lib/VISsave.S2
-rw-r--r--arch/sparc64/lib/memcmp.S2
-rw-r--r--arch/sparc64/lib/memscan.S2
-rw-r--r--arch/sparc64/lib/strncmp.S2
-rw-r--r--arch/sparc64/lib/strncpy_from_user.S2
-rw-r--r--arch/sparc64/math-emu/math.c2
-rw-r--r--arch/sparc64/math-emu/sfp-util.h2
-rw-r--r--arch/sparc64/mm/Makefile1
-rw-r--r--arch/sparc64/mm/fault.c2
-rw-r--r--arch/sparc64/mm/generic.c2
-rw-r--r--arch/sparc64/mm/init.c2
-rw-r--r--arch/sparc64/mm/ultra.S31
-rw-r--r--arch/sparc64/prom/Makefile1
-rw-r--r--arch/sparc64/prom/bootstr.c2
-rw-r--r--arch/sparc64/prom/devops.c2
-rw-r--r--arch/sparc64/prom/init.c2
-rw-r--r--arch/sparc64/prom/misc.c2
-rw-r--r--arch/sparc64/prom/p1275.c2
-rw-r--r--arch/sparc64/prom/tree.c2
37 files changed, 185 insertions, 37 deletions
diff --git a/arch/sparc64/Makefile b/arch/sparc64/Makefile
index 9cb75c852b4..4b8f2b084c2 100644
--- a/arch/sparc64/Makefile
+++ b/arch/sparc64/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.52 2002/02/09 19:49:31 davem Exp $
# sparc64/Makefile
#
# Makefile for the architecture dependent flags and dependencies on the
diff --git a/arch/sparc64/boot/Makefile b/arch/sparc64/boot/Makefile
index 6968a6da57d..0458b5244f0 100644
--- a/arch/sparc64/boot/Makefile
+++ b/arch/sparc64/boot/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.4 1997/12/15 20:08:56 ecd Exp $
# Makefile for the Sparc64 boot stuff.
#
# Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/boot/piggyback.c b/arch/sparc64/boot/piggyback.c
index 36f907408c6..de364bfed0b 100644
--- a/arch/sparc64/boot/piggyback.c
+++ b/arch/sparc64/boot/piggyback.c
@@ -1,4 +1,4 @@
-/* $Id: piggyback.c,v 1.2 2000/09/19 14:34:39 anton Exp $
+/*
Simple utility to make a single-image install kernel with initial ramdisk
for Sparc64 tftpbooting without need to set up nfs.
diff --git a/arch/sparc64/kernel/dtlb_prot.S b/arch/sparc64/kernel/dtlb_prot.S
index e0a92016260..b2c2c5be281 100644
--- a/arch/sparc64/kernel/dtlb_prot.S
+++ b/arch/sparc64/kernel/dtlb_prot.S
@@ -1,4 +1,4 @@
-/* $Id: dtlb_prot.S,v 1.22 2001/04/11 23:40:32 davem Exp $
+/*
* dtlb_prot.S: DTLB protection trap strategy.
* This is included directly into the trap table.
*
diff --git a/arch/sparc64/kernel/ebus.c b/arch/sparc64/kernel/ebus.c
index bc263227484..c49d0388b79 100644
--- a/arch/sparc64/kernel/ebus.c
+++ b/arch/sparc64/kernel/ebus.c
@@ -1,4 +1,4 @@
-/* $Id: ebus.c,v 1.64 2001/11/08 04:41:33 davem Exp $
+/*
* ebus.c: PCI to EBus bridge device.
*
* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
diff --git a/arch/sparc64/kernel/etrap.S b/arch/sparc64/kernel/etrap.S
index f25e1da3fd0..29ce489bc18 100644
--- a/arch/sparc64/kernel/etrap.S
+++ b/arch/sparc64/kernel/etrap.S
@@ -1,4 +1,4 @@
-/* $Id: etrap.S,v 1.46 2002/02/09 19:49:30 davem Exp $
+/*
* etrap.S: Preparing for entry into the kernel on Sparc V9.
*
* Copyright (C) 1996, 1997 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/kernel/idprom.c b/arch/sparc64/kernel/idprom.c
index 3b6789e09a7..5b45a808c62 100644
--- a/arch/sparc64/kernel/idprom.c
+++ b/arch/sparc64/kernel/idprom.c
@@ -1,4 +1,4 @@
-/* $Id: idprom.c,v 1.3 1999/08/31 06:54:53 davem Exp $
+/*
* idprom.c: Routines to load the idprom into kernel addresses and
* interpret the data contained within.
*
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 4129c044985..0a0c05fc3a3 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -1,6 +1,6 @@
/* arch/sparc64/kernel/process.c
*
- * Copyright (C) 1995, 1996 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1995, 1996, 2008 David S. Miller (davem@davemloft.net)
* Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1997, 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
@@ -30,6 +30,7 @@
#include <linux/init.h>
#include <linux/cpu.h>
#include <linux/elfcore.h>
+#include <linux/sysrq.h>
#include <asm/oplib.h>
#include <asm/uaccess.h>
@@ -49,6 +50,8 @@
#include <asm/sstate.h>
#include <asm/reboot.h>
#include <asm/syscalls.h>
+#include <asm/irq_regs.h>
+#include <asm/smp.h>
/* #define VERBOSE_SHOWREGS */
@@ -298,6 +301,118 @@ void show_regs(struct pt_regs *regs)
#endif
}
+#ifdef CONFIG_MAGIC_SYSRQ
+struct global_reg_snapshot global_reg_snapshot[NR_CPUS];
+static DEFINE_SPINLOCK(global_reg_snapshot_lock);
+
+static void __global_reg_self(struct thread_info *tp, struct pt_regs *regs,
+ int this_cpu)
+{
+ flushw_all();
+
+ global_reg_snapshot[this_cpu].tstate = regs->tstate;
+ global_reg_snapshot[this_cpu].tpc = regs->tpc;
+ global_reg_snapshot[this_cpu].tnpc = regs->tnpc;
+ global_reg_snapshot[this_cpu].o7 = regs->u_regs[UREG_I7];
+
+ if (regs->tstate & TSTATE_PRIV) {
+ struct reg_window *rw;
+
+ rw = (struct reg_window *)
+ (regs->u_regs[UREG_FP] + STACK_BIAS);
+ global_reg_snapshot[this_cpu].i7 = rw->ins[6];
+ } else
+ global_reg_snapshot[this_cpu].i7 = 0;
+
+ global_reg_snapshot[this_cpu].thread = tp;
+}
+
+/* In order to avoid hangs we do not try to synchronize with the
+ * global register dump client cpus. The last store they make is to
+ * the thread pointer, so do a short poll waiting for that to become
+ * non-NULL.
+ */
+static void __global_reg_poll(struct global_reg_snapshot *gp)
+{
+ int limit = 0;
+
+ while (!gp->thread && ++limit < 100) {
+ barrier();
+ udelay(1);
+ }
+}
+
+static void sysrq_handle_globreg(int key, struct tty_struct *tty)
+{
+ struct thread_info *tp = current_thread_info();
+ struct pt_regs *regs = get_irq_regs();
+#ifdef CONFIG_KALLSYMS
+ char buffer[KSYM_SYMBOL_LEN];
+#endif
+ unsigned long flags;
+ int this_cpu, cpu;
+
+ if (!regs)
+ regs = tp->kregs;
+
+ spin_lock_irqsave(&global_reg_snapshot_lock, flags);
+
+ memset(global_reg_snapshot, 0, sizeof(global_reg_snapshot));
+
+ this_cpu = raw_smp_processor_id();
+
+ __global_reg_self(tp, regs, this_cpu);
+
+ smp_fetch_global_regs();
+
+ for_each_online_cpu(cpu) {
+ struct global_reg_snapshot *gp = &global_reg_snapshot[cpu];
+ struct thread_info *tp;
+
+ __global_reg_poll(gp);
+
+ tp = gp->thread;
+ printk("%c CPU[%3d]: TSTATE[%016lx] TPC[%016lx] TNPC[%016lx] TASK[%s:%d]\n",
+ (cpu == this_cpu ? '*' : ' '), cpu,
+ gp->tstate, gp->tpc, gp->tnpc,
+ ((tp && tp->task) ? tp->task->comm : "NULL"),
+ ((tp && tp->task) ? tp->task->pid : -1));
+#ifdef CONFIG_KALLSYMS
+ if (gp->tstate & TSTATE_PRIV) {
+ sprint_symbol(buffer, gp->tpc);
+ printk(" TPC[%s] ", buffer);
+ sprint_symbol(buffer, gp->o7);
+ printk("O7[%s] ", buffer);
+ sprint_symbol(buffer, gp->i7);
+ printk("I7[%s]\n", buffer);
+ } else
+#endif
+ {
+ printk(" TPC[%lx] O7[%lx] I7[%lx]\n",
+ gp->tpc, gp->o7, gp->i7);
+ }
+ }
+
+ memset(global_reg_snapshot, 0, sizeof(global_reg_snapshot));
+
+ spin_unlock_irqrestore(&global_reg_snapshot_lock, flags);
+}
+
+static struct sysrq_key_op sparc_globalreg_op = {
+ .handler = sysrq_handle_globreg,
+ .help_msg = "Globalregs",
+ .action_msg = "Show Global CPU Regs",
+};
+
+static int __init sparc_globreg_init(void)
+{
+ return register_sysrq_key('y', &sparc_globalreg_op);
+}
+
+core_initcall(sparc_globreg_init);
+
+#endif
+
unsigned long thread_saved_pc(struct task_struct *tsk)
{
struct thread_info *ti = task_thread_info(tsk);
diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S
index 16689b2930d..3afacbb5781 100644
--- a/arch/sparc64/kernel/rtrap.S
+++ b/arch/sparc64/kernel/rtrap.S
@@ -1,4 +1,4 @@
-/* $Id: rtrap.S,v 1.61 2002/02/09 19:49:31 davem Exp $
+/*
* rtrap.S: Preparing for return from trap on Sparc V9.
*
* Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index fa2827c4a3a..e33a8a660e9 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -1,4 +1,4 @@
-/* $Id: sbus.c,v 1.19 2002/01/23 11:27:32 davem Exp $
+/*
* sbus.c: UltraSparc SBUS controller support.
*
* Copyright (C) 1999 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index da5e6ee0c66..c8b03a4f68b 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -1,4 +1,4 @@
-/* $Id: setup.c,v 1.72 2002/02/09 19:49:30 davem Exp $
+/*
* linux/arch/sparc64/kernel/setup.c
*
* Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c
index 6e4dc67d16a..9667e96fd51 100644
--- a/arch/sparc64/kernel/signal.c
+++ b/arch/sparc64/kernel/signal.c
@@ -1,4 +1,4 @@
-/* $Id: signal.c,v 1.60 2002/02/09 19:49:31 davem Exp $
+/*
* arch/sparc64/kernel/signal.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 0d6403a630a..fa63c68a181 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -900,6 +900,9 @@ extern unsigned long xcall_flush_tlb_mm;
extern unsigned long xcall_flush_tlb_pending;
extern unsigned long xcall_flush_tlb_kernel_range;
extern unsigned long xcall_report_regs;
+#ifdef CONFIG_MAGIC_SYSRQ
+extern unsigned long xcall_fetch_glob_regs;
+#endif
extern unsigned long xcall_receive_signal;
extern unsigned long xcall_new_mmu_context_version;
#ifdef CONFIG_KGDB
@@ -1080,6 +1083,13 @@ void smp_report_regs(void)
smp_cross_call(&xcall_report_regs, 0, 0, 0);
}
+#ifdef CONFIG_MAGIC_SYSRQ
+void smp_fetch_global_regs(void)
+{
+ smp_cross_call(&xcall_fetch_glob_regs, 0, 0, 0);
+}
+#endif
+
/* We know that the window frames of the user have been flushed
* to the stack before we get here because all callers of us
* are flush_tlb_*() routines, and these run after flush_cache_*()
diff --git a/arch/sparc64/kernel/starfire.c b/arch/sparc64/kernel/starfire.c
index b930fee7708..7461581b3bb 100644
--- a/arch/sparc64/kernel/starfire.c
+++ b/arch/sparc64/kernel/starfire.c
@@ -1,4 +1,4 @@
-/* $Id: starfire.c,v 1.10 2001/04/14 21:13:45 davem Exp $
+/*
* starfire.c: Starfire/E10000 support.
*
* Copyright (C) 1998 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index 010a737908e..ade18ba0c68 100644
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -1,4 +1,4 @@
-/* $Id: sys32.S,v 1.12 2000/03/24 04:17:37 davem Exp $
+/*
* sys32.S: I-cache tricks for 32-bit compatibility layer simple
* conversions.
*
diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S
index 56ff5521134..704a3afcfd0 100644
--- a/arch/sparc64/kernel/trampoline.S
+++ b/arch/sparc64/kernel/trampoline.S
@@ -1,4 +1,4 @@
-/* $Id: trampoline.S,v 1.26 2002/02/09 19:49:30 davem Exp $
+/*
* trampoline.S: Jump start slave processors on sparc64.
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index 1a511e9f0d3..afa7fc4f519 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -1,4 +1,4 @@
-/* $Id: unaligned.c,v 1.24 2002/02/09 19:49:31 davem Exp $
+/*
* unaligned.c: Unaligned load/store trap handling with special
* cases for the kernel to do them more quickly.
*
diff --git a/arch/sparc64/lib/PeeCeeI.c b/arch/sparc64/lib/PeeCeeI.c
index 3c6cfbb2036..8b313f11bc8 100644
--- a/arch/sparc64/lib/PeeCeeI.c
+++ b/arch/sparc64/lib/PeeCeeI.c
@@ -1,4 +1,4 @@
-/* $Id: PeeCeeI.c,v 1.4 1999/09/06 01:17:35 davem Exp $
+/*
* PeeCeeI.c: The emerging standard...
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/lib/VISsave.S b/arch/sparc64/lib/VISsave.S
index a0ded5c5aa5..b320ae9e2e2 100644
--- a/arch/sparc64/lib/VISsave.S
+++ b/arch/sparc64/lib/VISsave.S
@@ -1,4 +1,4 @@
-/* $Id: VISsave.S,v 1.6 2002/02/09 19:49:30 davem Exp $
+/*
* VISsave.S: Code for saving FPU register state for
* VIS routines. One should not call this directly,
* but use macros provided in <asm/visasm.h>.
diff --git a/arch/sparc64/lib/memcmp.S b/arch/sparc64/lib/memcmp.S
index c90ad96c51b..d3fdaa89856 100644
--- a/arch/sparc64/lib/memcmp.S
+++ b/arch/sparc64/lib/memcmp.S
@@ -1,4 +1,4 @@
-/* $Id: memcmp.S,v 1.3 2000/03/23 07:51:08 davem Exp $
+/*
* Sparc64 optimized memcmp code.
*
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc64/lib/memscan.S b/arch/sparc64/lib/memscan.S
index 5e72d491141..5686dfa5dc1 100644
--- a/arch/sparc64/lib/memscan.S
+++ b/arch/sparc64/lib/memscan.S
@@ -1,4 +1,4 @@
-/* $Id: memscan.S,v 1.3 2000/01/31 04:59:10 davem Exp $
+/*
* memscan.S: Optimized memscan for Sparc64.
*
* Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz)
diff --git a/arch/sparc64/lib/strncmp.S b/arch/sparc64/lib/strncmp.S
index 6f14f53dbab..980e8375155 100644
--- a/arch/sparc64/lib/strncmp.S
+++ b/arch/sparc64/lib/strncmp.S
@@ -1,4 +1,4 @@
-/* $Id: strncmp.S,v 1.2 1997/03/11 17:51:44 jj Exp $
+/*
* Sparc64 optimized strncmp code.
*
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc64/lib/strncpy_from_user.S b/arch/sparc64/lib/strncpy_from_user.S
index b2f499f7942..511c8f136f9 100644
--- a/arch/sparc64/lib/strncpy_from_user.S
+++ b/arch/sparc64/lib/strncpy_from_user.S
@@ -1,4 +1,4 @@
-/* $Id: strncpy_from_user.S,v 1.6 1999/05/25 16:53:05 jj Exp $
+/*
* strncpy_from_user.S: Sparc64 strncpy from userspace.
*
* Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
diff --git a/arch/sparc64/math-emu/math.c b/arch/sparc64/math-emu/math.c
index 6ee496c2864..add053e0f3b 100644
--- a/arch/sparc64/math-emu/math.c
+++ b/arch/sparc64/math-emu/math.c
@@ -1,4 +1,4 @@
-/* $Id: math.c,v 1.11 1999/12/20 05:02:25 davem Exp $
+/*
* arch/sparc64/math-emu/math.c
*
* Copyright (C) 1997,1999 Jakub Jelinek (jj@ultra.linux.cz)
diff --git a/arch/sparc64/math-emu/sfp-util.h b/arch/sparc64/math-emu/sfp-util.h
index 31e474738cf..425d3cf01af 100644
--- a/arch/sparc64/math-emu/sfp-util.h
+++ b/arch/sparc64/math-emu/sfp-util.h
@@ -1,4 +1,4 @@
-/* $Id: sfp-util.h,v 1.5 2001/06/10 06:48:46 davem Exp $
+/*
* arch/sparc64/math-emu/sfp-util.h
*
* Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
diff --git a/arch/sparc64/mm/Makefile b/arch/sparc64/mm/Makefile
index e415bf942bc..68d04c0370f 100644
--- a/arch/sparc64/mm/Makefile
+++ b/arch/sparc64/mm/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.8 2000/12/14 22:57:25 davem Exp $
# Makefile for the linux Sparc64-specific parts of the memory manager.
#
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index 2650d0d33ac..236f4d228d2 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -1,4 +1,4 @@
-/* $Id: fault.c,v 1.59 2002/02/09 19:49:31 davem Exp $
+/*
* arch/sparc64/mm/fault.c: Page fault handlers for the 64-bit Sparc.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c
index af9d81db0b3..f362c203701 100644
--- a/arch/sparc64/mm/generic.c
+++ b/arch/sparc64/mm/generic.c
@@ -1,4 +1,4 @@
-/* $Id: generic.c,v 1.18 2001/12/21 04:56:15 davem Exp $
+/*
* generic.c: Generic Sparc mm routines that are not dependent upon
* MMU type but are Sparc specific.
*
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 3c7b9471eaf..84898c44dd4 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1,4 +1,4 @@
-/* $Id: init.c,v 1.209 2002/02/09 19:49:31 davem Exp $
+/*
* arch/sparc64/mm/init.c
*
* Copyright (C) 1996-1999 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index 796e005dad8..9bb2d90a9df 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -1,7 +1,7 @@
-/* $Id: ultra.S,v 1.72 2002/02/09 19:49:31 davem Exp $
+/*
* ultra.S: Don't expand these all over the place...
*
- * Copyright (C) 1997, 2000 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1997, 2000, 2008 David S. Miller (davem@davemloft.net)
*/
#include <asm/asi.h>
@@ -15,6 +15,7 @@
#include <asm/thread_info.h>
#include <asm/cacheflush.h>
#include <asm/hypervisor.h>
+#include <asm/cpudata.h>
/* Basically, most of the Spitfire vs. Cheetah madness
* has to do with the fact that Cheetah does not support
@@ -514,6 +515,32 @@ xcall_report_regs:
b rtrap_xcall
ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
+#ifdef CONFIG_MAGIC_SYSRQ
+ .globl xcall_fetch_glob_regs
+xcall_fetch_glob_regs:
+ sethi %hi(global_reg_snapshot), %g1
+ or %g1, %lo(global_reg_snapshot), %g1
+ __GET_CPUID(%g2)
+ sllx %g2, 6, %g3
+ add %g1, %g3, %g1
+ rdpr %tstate, %g7
+ stx %g7, [%g1 + GR_SNAP_TSTATE]
+ rdpr %tpc, %g7
+ stx %g7, [%g1 + GR_SNAP_TPC]
+ rdpr %tnpc, %g7
+ stx %g7, [%g1 + GR_SNAP_TNPC]
+ stx %o7, [%g1 + GR_SNAP_O7]
+ stx %i7, [%g1 + GR_SNAP_I7]
+ sethi %hi(trap_block), %g7
+ or %g7, %lo(trap_block), %g7
+ sllx %g2, TRAP_BLOCK_SZ_SHIFT, %g2
+ add %g7, %g2, %g7
+ ldx [%g7 + TRAP_PER_CPU_THREAD], %g3
+ membar #StoreStore
+ stx %g3, [%g1 + GR_SNAP_THREAD]
+ retry
+#endif /* CONFIG_MAGIC_SYSRQ */
+
#ifdef DCACHE_ALIASING_POSSIBLE
.align 32
.globl xcall_flush_dcache_page_cheetah
diff --git a/arch/sparc64/prom/Makefile b/arch/sparc64/prom/Makefile
index 3d33ed27bc2..8c94483ca54 100644
--- a/arch/sparc64/prom/Makefile
+++ b/arch/sparc64/prom/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.7 2000/12/14 22:57:25 davem Exp $
# Makefile for the Sun Boot PROM interface library under
# Linux.
#
diff --git a/arch/sparc64/prom/bootstr.c b/arch/sparc64/prom/bootstr.c
index a7278614e99..ab9ccc63b38 100644
--- a/arch/sparc64/prom/bootstr.c
+++ b/arch/sparc64/prom/bootstr.c
@@ -1,4 +1,4 @@
-/* $Id: bootstr.c,v 1.6 1999/08/31 06:55:01 davem Exp $
+/*
* bootstr.c: Boot string/argument acquisition from the PROM.
*
* Copyright(C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/prom/devops.c b/arch/sparc64/prom/devops.c
index 4641839eb39..9dbd803e46e 100644
--- a/arch/sparc64/prom/devops.c
+++ b/arch/sparc64/prom/devops.c
@@ -1,4 +1,4 @@
-/* $Id: devops.c,v 1.3 1997/10/29 07:43:28 ecd Exp $
+/*
* devops.c: Device operations using the PROM.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc64/prom/init.c b/arch/sparc64/prom/init.c
index 87e7c7ea0ee..7b00f89490a 100644
--- a/arch/sparc64/prom/init.c
+++ b/arch/sparc64/prom/init.c
@@ -1,4 +1,4 @@
-/* $Id: init.c,v 1.10 1999/09/21 14:35:59 davem Exp $
+/*
* init.c: Initialize internal variables used by the PROM
* library functions.
*
diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c
index 47a877a15ab..9b0c0760901 100644
--- a/arch/sparc64/prom/misc.c
+++ b/arch/sparc64/prom/misc.c
@@ -1,4 +1,4 @@
-/* $Id: misc.c,v 1.20 2001/09/21 03:17:07 kanoj Exp $
+/*
* misc.c: Miscellaneous prom functions that don't belong
* anywhere else.
*
diff --git a/arch/sparc64/prom/p1275.c b/arch/sparc64/prom/p1275.c
index 7fcccc0e19c..4b7c937bba6 100644
--- a/arch/sparc64/prom/p1275.c
+++ b/arch/sparc64/prom/p1275.c
@@ -1,4 +1,4 @@
-/* $Id: p1275.c,v 1.22 2001/10/18 09:40:00 davem Exp $
+/*
* p1275.c: Sun IEEE 1275 PROM low level interface routines
*
* Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc64/prom/tree.c b/arch/sparc64/prom/tree.c
index a99ccd7fb1b..281aea44790 100644
--- a/arch/sparc64/prom/tree.c
+++ b/arch/sparc64/prom/tree.c
@@ -1,4 +1,4 @@
-/* $Id: tree.c,v 1.10 1998/01/10 22:39:00 ecd Exp $
+/*
* tree.c: Basic device tree traversal/scanning for the Linux
* prom library.
*