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drm/i915: x86 always has writeq. Add I915_READ64 for symmetry.

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i386 has inline code for writeq and readq, so just use those instead of ugly
macros which evaluate arguments multiple times.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Keith Packard 2009-04-30 14:43:43 -07:00 committed by Eric Anholt
parent 091438dd56
commit 049ef7e40f
1 changed files with 1 additions and 6 deletions
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7
drivers/gpu/drm/i915/i915_drv.h
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@ -705,13 +705,8 @@ extern void intel_modeset_cleanup(struct drm_device *dev);
#define I915_WRITE16(reg, val) writel(val, dev_priv->regs + (reg))
#define I915_READ8(reg) readb(dev_priv->regs + (reg))
#define I915_WRITE8(reg, val) writeb(val, dev_priv->regs + (reg))
#ifdef writeq
#define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
#else
#define I915_WRITE64(reg, val) (writel(val, dev_priv->regs + (reg)), \
writel(upper_32_bits(val), dev_priv->regs + \
(reg) + 4))
#endif
#define I915_READ64(reg) readq(dev_priv->regs + (reg))
#define POSTING_READ(reg) (void)I915_READ(reg)
#define I915_VERBOSE 0