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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-03-26 22:37:04 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-04-09 18:04:08 +0200
commitf534bc0b2212f3dc317bdaea5dfff13526f2ac17 (patch)
tree2ef377d7efcdf32d0555c3bafe7649aed77cae37
parent26394d9251879231b85e6c8cf899fa43e75c68f1 (diff)
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: Adam Jackson <ajax@redhat.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 54ca125a405d..759daa491ab5 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -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);