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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2013-05-08 10:45:14 -0700 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-05-10 21:56:37 +0200 |
| commit | 3727d55e4d85836aa6cb759a965daaef88074150 (patch) | |
| tree | b07b6410282d0d81efcd1c8b6641a5927df693c2 /drivers/gpu/drm/i915/i915_gem_stolen.c | |
| parent | c9cddffc669408a361c62353a36dd40b469dd9c2 (diff) | |
| download | blackbird-op-linux-3727d55e4d85836aa6cb759a965daaef88074150.tar.gz blackbird-op-linux-3727d55e4d85836aa6cb759a965daaef88074150.zip | |
drm/i915: allow stolen, pre-allocated objects to avoid GTT allocation v2
In some cases, we may not need GTT address space allocated to a stolen
object, so allow passing -1 to the preallocated function to indicate as
much.
v2: remove BUG_ON(gtt_offset & 4095) now that -1 is allowed (Ville)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_stolen.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_stolen.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index 913994cd0a3a..89cbfab9570e 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -339,7 +339,6 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, /* KISS and expect everything to be page-aligned */ BUG_ON(stolen_offset & 4095); - BUG_ON(gtt_offset & 4095); BUG_ON(size & 4095); if (WARN_ON(size == 0)) @@ -360,6 +359,10 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, return NULL; } + /* Some objects just need physical mem from stolen space */ + if (gtt_offset == -1) + return obj; + /* To simplify the initialisation sequence between KMS and GTT, * we allow construction of the stolen object prior to * setting up the GTT space. The actual reservation will occur |
