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drm/i915/gvt: fix bad 32 bit shift in gtt

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Since ioread32 returns a 32-bit value, it is impossible to left-shift
this value by 32 bits (it produces a compilation error). Casting the
return value of ioread32 fix this issue.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Jérémy Lefaure 2016-10-20 18:05:57 -04:00 committed by Zhenyu Wang
parent 946260e5fb
commit 31f09cb79e
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/i915/gvt/gtt.c
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@ -276,7 +276,7 @@ static u64 read_pte64(struct drm_i915_private *dev_priv, unsigned long index)
pte = readq(addr);
#else
pte = ioread32(addr);
pte |= ioread32(addr + 4) << 32;
pte |= (u64)ioread32(addr + 4) << 32;
#endif
return pte;
}