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drm/i915: Add untraced register read/write interface 

This will be used later to hide the frequently written registers
from debug traces in order to increase the signal-to-noise.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Yuanhan Liu 2010-11-08 09:56:37 +00:00 committed by Chris Wilson
parent ba4f01a304
commit 65e5ecb066
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/i915/i915_drv.h
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@ -1229,6 +1229,11 @@ i915_write(struct drm_i915_private *dev_priv, u32 reg, u64 val, int len)
#define POSTING_READ(reg) (void)I915_READ(reg)
#define POSTING_READ16(reg) (void)I915_READ16(reg)
#define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
#define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
#define POSTING_READ_NOTRACE(reg) (void)I915_READ_NOTRACE(reg)
#define BEGIN_LP_RING(n) \
intel_ring_begin(&dev_priv->render_ring, (n))