diff options
| author | Ben Widawsky <ben@bwidawsk.net> | 2013-01-17 12:45:13 -0800 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-01-17 22:33:02 +0100 |
| commit | 35451cb6fbd3655ede4694b11761a587d400d647 (patch) | |
| tree | 17a88c7596daa456c4fdbacf403460e6214d2535 /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | c1fc6521efbed7d3aca4e37ac61b23300f161cd1 (diff) | |
drm/i915: Mappable_end can't ever be > end
Both DRI1 and DRI2 can never specify a mappable size which goes past the
GTT size. Don't pretend otherwise.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 3ffcf528f166..e66c70008767 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -536,6 +536,8 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, struct drm_i915_gem_object *obj; unsigned long hole_start, hole_end; + BUG_ON(mappable_end > end); + /* Subtract the guard page ... */ drm_mm_init(&dev_priv->mm.gtt_space, start, end - start - PAGE_SIZE); if (!HAS_LLC(dev)) @@ -557,7 +559,7 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, dev_priv->mm.gtt_start = start; dev_priv->mm.gtt_mappable_end = mappable_end; dev_priv->mm.gtt_total = end - start; - dev_priv->mm.mappable_gtt_total = min(end, mappable_end) - start; + dev_priv->mm.mappable_gtt_total = mappable_end - start; /* Clear any non-preallocated blocks */ drm_mm_for_each_hole(entry, &dev_priv->mm.gtt_space, |