diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-09-02 05:02:43 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-09-03 05:29:33 +0100 |
| commit | 8f5e2b306b4e26db0ec65e0a27b232b179c9122b (patch) | |
| tree | 8d63f786d8cff84c3017349a6da24685cf58ee0f /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | 9e362992ff34cab695e669ef1e3f4f65463087e5 (diff) | |
drm/i915: Restrict the aliasing-ppgtt to the size of the ggtt
The aliasing-ppgtt is not allowed to be smaller than the ggtt, nor
should we advertise it as being any bigger, or else we may get sued for
false advertisement.
Testcase: igt/gem_exec_big
Fixes: 0b718ba1e884 ("drm/i915/gtt: Downgrade Cherryview back to aliasing-ppgtt")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190902040303.14195-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index ee51fd1a6207..906dc6fff383 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2597,6 +2597,8 @@ static int init_aliasing_ppgtt(struct i915_ggtt *ggtt) GEM_BUG_ON(ggtt->vm.vma_ops.unbind_vma != ggtt_unbind_vma); ggtt->vm.vma_ops.unbind_vma = aliasing_gtt_unbind_vma; + ppgtt->vm.total = ggtt->vm.total; + return 0; err_ppgtt: |