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Commit f534bc0b authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915: disallow gem init ioctl on ilk 



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: default avatarAdam Jackson <ajax@redhat.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 26394d92

drivers/gpu/drm/i915/i915_gem.c

+4 −0
Original line number Diff line number Diff line
@@ -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);