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drm/i915/gvt: always use readq and writeq 

The readq and writeq are already offered by drm_os_linux.h. So we can
use them directly whithout dectecting their presence. This patch removed
the duplicated code.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Changbin Du 2016-12-30 14:10:53 +08:00 committed by Zhenyu Wang
parent 39762ad437
commit 905a5035eb
1 changed files with 2 additions and 13 deletions
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15
drivers/gpu/drm/i915/gvt/gtt.c
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@ -240,15 +240,8 @@ static inline int get_pse_type(int type)
static u64 read_pte64(struct drm_i915_private *dev_priv, unsigned long index)
{
void __iomem *addr = (gen8_pte_t __iomem *)dev_priv->ggtt.gsm + index;
u64 pte;
#ifdef readq
pte = readq(addr);
#else
pte = ioread32(addr);
pte |= (u64)ioread32(addr + 4) << 32;
#endif
return pte;
return readq(addr);
}
static void write_pte64(struct drm_i915_private *dev_priv,
@ -256,12 +249,8 @@ static void write_pte64(struct drm_i915_private *dev_priv,
{
void __iomem *addr = (gen8_pte_t __iomem *)dev_priv->ggtt.gsm + index;
#ifdef writeq
writeq(pte, addr);
#else
iowrite32((u32)pte, addr);
iowrite32(pte >> 32, addr + 4);
#endif
I915_WRITE(GFX_FLSH_CNTL_GEN6, GFX_FLSH_CNTL_EN);
POSTING_READ(GFX_FLSH_CNTL_GEN6);
}