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powerpc: Use MSR_64BIT in places 

Use the new MSR_64BIT in a few places. Some of these are already ifdef'ed
for BOOKE vs BOOKS, but it's still clearer, MSR_SF does not immediately
parse as "MSR bit for 64bit".

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman 2011-04-07 21:56:03 +00:00 коммит произвёл Benjamin Herrenschmidt
Родитель 9d4a2925c2
Коммит 9f0b079320
4 изменённых файлов: 11 добавлений и 11 удалений
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2
arch/powerpc/kernel/head_64.S
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@ -655,7 +655,7 @@ _GLOBAL(enable_64b_mode)
oris r11,r11,0x8000 /* CM bit set, we'll set ICM later */
mtmsr r11
#else /* CONFIG_PPC_BOOK3E */
li r12,(MSR_SF | MSR_ISF)@highest
li r12,(MSR_64BIT | MSR_ISF)@highest
sldi r12,r12,48
or r11,r11,r12
mtmsrd r11

4
arch/powerpc/kernel/signal_64.c
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@ -381,7 +381,7 @@ badframe:
regs, uc, &uc->uc_mcontext);
#endif
if (show_unhandled_signals && printk_ratelimit())
printk(regs->msr & MSR_SF ? fmt64 : fmt32,
printk(regs->msr & MSR_64BIT ? fmt64 : fmt32,
current->comm, current->pid, "rt_sigreturn",
(long)uc, regs->nip, regs->link);
@ -469,7 +469,7 @@ badframe:
regs, frame, newsp);
#endif
if (show_unhandled_signals && printk_ratelimit())
printk(regs->msr & MSR_SF ? fmt64 : fmt32,
printk(regs->msr & MSR_64BIT ? fmt64 : fmt32,
current->comm, current->pid, "setup_rt_frame",
(long)frame, regs->nip, regs->link);

2
arch/powerpc/kernel/traps.c
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@ -199,7 +199,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
} else if (show_unhandled_signals &&
unhandled_signal(current, signr) &&
printk_ratelimit()) {
printk(regs->msr & MSR_SF ? fmt64 : fmt32,
printk(regs->msr & MSR_64BIT ? fmt64 : fmt32,
current->comm, current->pid, signr,
addr, regs->nip, regs->link, code);
}

14
arch/powerpc/xmon/xmon.c
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@ -399,7 +399,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
cpu_set(cpu, cpus_in_xmon);
bp = NULL;
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) == (MSR_IR|MSR_SF))
if ((regs->msr & (MSR_IR|MSR_PR|MSR_64BIT)) == (MSR_IR|MSR_64BIT))
bp = at_breakpoint(regs->nip);
if (bp || unrecoverable_excp(regs))
fromipi = 0;
@ -529,7 +529,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
}
}
#else
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) == (MSR_IR|MSR_SF)) {
if ((regs->msr & (MSR_IR|MSR_PR|MSR_64BIT)) == (MSR_IR|MSR_64BIT)) {
bp = at_breakpoint(regs->nip);
if (bp != NULL) {
int stepped = emulate_step(regs, bp->instr[0]);
@ -578,7 +578,7 @@ static int xmon_bpt(struct pt_regs *regs)
struct bpt *bp;
unsigned long offset;
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
if ((regs->msr & (MSR_IR|MSR_PR|MSR_64BIT)) != (MSR_IR|MSR_64BIT))
return 0;
/* Are we at the trap at bp->instr[1] for some bp? */
@ -609,7 +609,7 @@ static int xmon_sstep(struct pt_regs *regs)
static int xmon_dabr_match(struct pt_regs *regs)
{
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
if ((regs->msr & (MSR_IR|MSR_PR|MSR_64BIT)) != (MSR_IR|MSR_64BIT))
return 0;
if (dabr.enabled == 0)
return 0;
@ -619,7 +619,7 @@ static int xmon_dabr_match(struct pt_regs *regs)
static int xmon_iabr_match(struct pt_regs *regs)
{
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
if ((regs->msr & (MSR_IR|MSR_PR|MSR_64BIT)) != (MSR_IR|MSR_64BIT))
return 0;
if (iabr == NULL)
return 0;
@ -644,7 +644,7 @@ static int xmon_fault_handler(struct pt_regs *regs)
if (in_xmon && catch_memory_errors)
handle_fault(regs); /* doesn't return */
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) == (MSR_IR|MSR_SF)) {
if ((regs->msr & (MSR_IR|MSR_PR|MSR_64BIT)) == (MSR_IR|MSR_64BIT)) {
bp = in_breakpoint_table(regs->nip, &offset);
if (bp != NULL) {
regs->nip = bp->address + offset;
@ -929,7 +929,7 @@ static int do_step(struct pt_regs *regs)
int stepped;
/* check we are in 64-bit kernel mode, translation enabled */
if ((regs->msr & (MSR_SF|MSR_PR|MSR_IR)) == (MSR_SF|MSR_IR)) {
if ((regs->msr & (MSR_64BIT|MSR_PR|MSR_IR)) == (MSR_64BIT|MSR_IR)) {
if (mread(regs->nip, &instr, 4) == 4) {
stepped = emulate_step(regs, instr);
if (stepped < 0) {