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powerpc: Create PPC_WARN_ALIGNMENT to match PPC_WARN_EMULATED

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perf_event wants a separate event for alignment and emulation faults,
so create another emulation event.  This will make it easy to hook in
perf_event at one spot.

We pass in regs which will be required for these events.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard
2009-10-27 18:46:55 +00:00
committed by Paul Mackerras
parent f7d7986060
commit eecff81d1f
3 changed files with 20 additions and 17 deletions
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arch/powerpc/kernel/align.c
+6 -6
View File
@@ -732,7 +732,7 @@ int fix_alignment(struct pt_regs *regs)
#ifdef CONFIG_SPE
if ((instr >> 26) == 0x4) {
PPC_WARN_EMULATED(spe);
PPC_WARN_ALIGNMENT(spe, regs);
return emulate_spe(regs, reg, instr);
}
#endif
@@ -786,7 +786,7 @@ int fix_alignment(struct pt_regs *regs)
flags |= SPLT;
nb = 8;
}
PPC_WARN_EMULATED(vsx);
PPC_WARN_ALIGNMENT(vsx, regs);
return emulate_vsx(addr, reg, areg, regs, flags, nb);
}
#endif
@@ -794,7 +794,7 @@ int fix_alignment(struct pt_regs *regs)
* the exception of DCBZ which is handled as a special case here
*/
if (instr == DCBZ) {
PPC_WARN_EMULATED(dcbz);
PPC_WARN_ALIGNMENT(dcbz, regs);
return emulate_dcbz(regs, addr);
}
if (unlikely(nb == 0))
@@ -804,7 +804,7 @@ int fix_alignment(struct pt_regs *regs)
* function
*/
if (flags & M) {
PPC_WARN_EMULATED(multiple);
PPC_WARN_ALIGNMENT(multiple, regs);
return emulate_multiple(regs, addr, reg, nb,
flags, instr, swiz);
}
@@ -825,11 +825,11 @@ int fix_alignment(struct pt_regs *regs)
/* Special case for 16-byte FP loads and stores */
if (nb == 16) {
PPC_WARN_EMULATED(fp_pair);
PPC_WARN_ALIGNMENT(fp_pair, regs);
return emulate_fp_pair(addr, reg, flags);
}
PPC_WARN_EMULATED(unaligned);
PPC_WARN_ALIGNMENT(unaligned, regs);
/* If we are loading, get the data from user space, else
* get it from register values