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powerpc: Enable Little Endian Alignment Handler for Float Pair Instructions
This patch enables alignment handling for the load/store floating point pair instructions (lfdp, lfdpx, stfdp, stfdpx). The handler routine is properly coded and only needs to be enabled. Signed-off-by: Tom Musta <tmusta@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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1 changed files with 0 additions and 6 deletions
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@ -378,7 +378,6 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
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* Only POWER6 has these instructions, and it does true little-endian,
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* so we don't need the address swizzling.
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*/
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#ifdef __BIG_ENDIAN__
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static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
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unsigned int flags)
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{
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@ -406,7 +405,6 @@ static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
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return -EFAULT;
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return 1; /* exception handled and fixed up */
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}
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#endif
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#ifdef CONFIG_SPE
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@ -918,12 +916,8 @@ int fix_alignment(struct pt_regs *regs)
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/* Special case for 16-byte FP loads and stores */
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if (nb == 16) {
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#ifdef __BIG_ENDIAN__
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PPC_WARN_ALIGNMENT(fp_pair, regs);
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return emulate_fp_pair(addr, reg, flags);
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#else
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return -EFAULT;
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#endif
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}
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PPC_WARN_ALIGNMENT(unaligned, regs);
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