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drm/i915: disallow gem init ioctl on ilk

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Ums is already disabled, but on ilk we can additionally disable gem
initialization when using user mode setting. Upstream never support
ilk without kernel modesetting and not even the RHEL ilk ums backport
needs gem - that driver is based on xf86-video-intel version 2.2,
which is pre-gem.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-03-26 22:37:04 +02:00
parent 26394d9251
commit f534bc0b22
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/i915_gem.c
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@ -129,6 +129,10 @@ i915_gem_init_ioctl(struct drm_device *dev, void *data,
(args->gtt_end | args->gtt_start) & (PAGE_SIZE - 1))
return -EINVAL;
/* GEM with user mode setting was never supported on ilk and later. */
if (INTEL_INFO(dev)->gen >= 5)
return -ENODEV;
mutex_lock(&dev->struct_mutex);
i915_gem_init_global_gtt(dev, args->gtt_start,
args->gtt_end, args->gtt_end);