drm/i915: add GETPARAM request for page flipping
Add a GETPARAM request for checking if page flipping is supported. Useful for the 2D driver to enable the flipping path. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
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@ -810,6 +810,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
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case I915_PARAM_HAS_OVERLAY:
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value = dev_priv->overlay ? 1 : 0;
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break;
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case I915_PARAM_HAS_PAGEFLIPPING:
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value = 1;
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break;
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default:
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DRM_DEBUG_DRIVER("Unknown parameter %d\n",
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param->param);
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@ -271,6 +271,7 @@ typedef struct drm_i915_irq_wait {
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#define I915_PARAM_HAS_GEM 5
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#define I915_PARAM_NUM_FENCES_AVAIL 6
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#define I915_PARAM_HAS_OVERLAY 7
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#define I915_PARAM_HAS_PAGEFLIPPING 8
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typedef struct drm_i915_getparam {
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int param;
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