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authorLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2009-01-14 16:29:51 +1100
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2009-01-14 16:29:51 +1100
commitcb7a97d01521797cad9f63e8478403c3e51fea49 (patch)
tree84cddf20369f82f10c1c3712e6cce20dd1b9d863 /arch/mips/kernel/branch.c
parent0335cb76aa3fa913a2164bc9b669e5aef9d56fa3 (diff)
parenta6525042bfdfcab128bd91fad264de10fd24a55e (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'arch/mips/kernel/branch.c')
-rw-r--r--arch/mips/kernel/branch.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index 6b5df8bfab85..0176ed015c89 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -205,6 +205,39 @@ int __compute_return_epc(struct pt_regs *regs)
break;
}
break;
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ case lwc2_op: /* This is bbit0 on Octeon */
+ if ((regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt))
+ == 0)
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+ case ldc2_op: /* This is bbit032 on Octeon */
+ if ((regs->regs[insn.i_format.rs] &
+ (1ull<<(insn.i_format.rt+32))) == 0)
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+ case swc2_op: /* This is bbit1 on Octeon */
+ if (regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt))
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+ case sdc2_op: /* This is bbit132 on Octeon */
+ if (regs->regs[insn.i_format.rs] &
+ (1ull<<(insn.i_format.rt+32)))
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+#endif
}
return 0;