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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-04-07 16:21:11 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-04-10 10:41:24 +0200 |
| commit | 149c86e74fe44dcbac5e9f8d145c5fbc5dc21261 (patch) | |
| tree | fe80ee5d681c97e8c91bbf7a712a2714e8d469d7 /drivers | |
| parent | d7b9ca2f7a41cd36f5ca6c220df48ca9294ed37a (diff) | |
| download | talos-obmc-linux-149c86e74fe44dcbac5e9f8d145c5fbc5dc21261.tar.gz talos-obmc-linux-149c86e74fe44dcbac5e9f8d145c5fbc5dc21261.zip | |
drm/i915: Allocate context objects from stolen
As we never expose context objects directly to userspace, we can forgo
allocating a first-class GEM object for them and prefer to use the
limited resource of reserved/stolen memory for them. Note this means
that their initial contents are undefined.
However, a downside of using stolen objects for execlists is that we
cannot access the physical address directly (thanks MCH!) which prevents
their use.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index f3e84c44d009..e4c57a3981b3 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -157,7 +157,9 @@ i915_gem_alloc_context_obj(struct drm_device *dev, size_t size) struct drm_i915_gem_object *obj; int ret; - obj = i915_gem_alloc_object(dev, size); + obj = i915_gem_object_create_stolen(dev, size); + if (obj == NULL) + obj = i915_gem_alloc_object(dev, size); if (obj == NULL) return ERR_PTR(-ENOMEM); diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 88c577cdd038..aa3ea64e4815 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1845,7 +1845,7 @@ int intel_lr_context_deferred_create(struct intel_context *ctx, context_size = round_up(get_lr_context_size(ring), 4096); - ctx_obj = i915_gem_alloc_context_obj(dev, context_size); + ctx_obj = i915_gem_alloc_object(dev, context_size); if (IS_ERR(ctx_obj)) { ret = PTR_ERR(ctx_obj); DRM_DEBUG_DRIVER("Alloc LRC backing obj failed: %d\n", ret); |
