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drm/i915: disable contexts on old HW

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This got dropped as a result of the last round of comments. I didn't
test it on unsupported HW (which this is likely the case).

Note that this prevents hw context from blowing up on any pre-gen6 hw.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51142
[danvet: Added note and buglink.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2012-06-17 09:37:24 -07:00 committed by Daniel Vetter
parent 39fb50f617
commit e158c5aa17
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/i915_gem_context.c
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@ -243,8 +243,10 @@ void i915_gem_context_init(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t ctx_size;
if (!HAS_HW_CONTEXTS(dev))
if (!HAS_HW_CONTEXTS(dev)) {
dev_priv->hw_contexts_disabled = true;
return;
}
/* If called from reset, or thaw... we've been here already */
if (dev_priv->hw_contexts_disabled ||