[SPARC64]: Revamp Spitfire error trap handling.
Current uncorrectable error handling was poor enough
that the processor could just loop taking the same
trap over and over again. Fix things up so that we
at least get a log message and perhaps even some register
state.
In the process, much consolidation became possible,
particularly with the correctable error handler.
Prefix assembler and C function names with "spitfire"
to indicate that these are for Ultra-I/II/IIi/IIe only.
More work is needed to make these routines robust and
featureful to the level of the Ultra-III error handlers.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index 11c3e88..da9739f 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -349,9 +349,9 @@
extern void do_fpother(struct pt_regs *regs);
extern void do_privact(struct pt_regs *regs);
-extern void data_access_exception(struct pt_regs *regs,
- unsigned long sfsr,
- unsigned long sfar);
+extern void spitfire_data_access_exception(struct pt_regs *regs,
+ unsigned long sfsr,
+ unsigned long sfar);
int handle_ldf_stq(u32 insn, struct pt_regs *regs)
{
@@ -394,14 +394,14 @@
break;
}
default:
- data_access_exception(regs, 0, addr);
+ spitfire_data_access_exception(regs, 0, addr);
return 1;
}
if (put_user (first >> 32, (u32 __user *)addr) ||
__put_user ((u32)first, (u32 __user *)(addr + 4)) ||
__put_user (second >> 32, (u32 __user *)(addr + 8)) ||
__put_user ((u32)second, (u32 __user *)(addr + 12))) {
- data_access_exception(regs, 0, addr);
+ spitfire_data_access_exception(regs, 0, addr);
return 1;
}
} else {
@@ -414,7 +414,7 @@
do_privact(regs);
return 1;
} else if (asi > ASI_SNFL) {
- data_access_exception(regs, 0, addr);
+ spitfire_data_access_exception(regs, 0, addr);
return 1;
}
switch (insn & 0x180000) {
@@ -431,7 +431,7 @@
err |= __get_user (data[i], (u32 __user *)(addr + 4*i));
}
if (err && !(asi & 0x2 /* NF */)) {
- data_access_exception(regs, 0, addr);
+ spitfire_data_access_exception(regs, 0, addr);
return 1;
}
if (asi & 0x8) /* Little */ {
@@ -534,7 +534,7 @@
*(u64 *)(f->regs + freg) = value;
current_thread_info()->fpsaved[0] |= flag;
} else {
-daex: data_access_exception(regs, sfsr, sfar);
+daex: spitfire_data_access_exception(regs, sfsr, sfar);
return;
}
advance(regs);
@@ -578,7 +578,7 @@
__put_user ((u32)value, (u32 __user *)(sfar + 4)))
goto daex;
} else {
-daex: data_access_exception(regs, sfsr, sfar);
+daex: spitfire_data_access_exception(regs, sfsr, sfar);
return;
}
advance(regs);