From 2150da5d1a57d25d0f4bc39bb6c883d410f586d1 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 10 Jun 2008 15:30:23 -0700 Subject: [gem] Manage the ringbuffer from the kernel in the GEM case. This requires that the X Server use the execbuf interface for buffer submission, as it no longer has direct access to the ring. This is therefore a flag day for the gem interface. This also adds enter/leavevt ioctls for use by the X Server. These would get stubbed out in a modesetting implementation, but are required while in an environment where the device's state is only managed by the DRM while X has the VT. --- shared-core/i915_irq.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'shared-core/i915_irq.c') diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c index 37d85f40..077af1ab 100644 --- a/shared-core/i915_irq.c +++ b/shared-core/i915_irq.c @@ -575,6 +575,11 @@ int i915_wait_irq(struct drm_device * dev, int irq_nr) drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; int ret = 0; + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + DRM_DEBUG("irq_nr=%d breadcrumb=%d\n", irq_nr, READ_BREADCRUMB(dev_priv)); -- cgit v1.2.3