diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2010-12-05 11:30:40 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-05 10:40:39 +0000 |
| commit | bbf0c6b3620b3872929ef7d3c392ce436889110f (patch) | |
| tree | bc0829f63f0fd3cb7b2188bac9e63623155db191 /drivers/gpu | |
| parent | 136711be41ec97f7f1a9c3a5e8535eb7da5fea59 (diff) | |
drm/i915: announce to userspace that the bsd ring is coherent
Otherwise we can't really fix the abi-braindeadness of forcing
libva to manually wait for rendering when switching rings. Which
in turn makes implementing hw semaphores a pointless exercise
(at least for ironlake).
[Also added the relaxed fencing param to explain the jump in
numbering - relaxed fencing is in -next.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 7a26f4dd21a..e6800819bca 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -767,6 +767,9 @@ static int i915_getparam(struct drm_device *dev, void *data, case I915_PARAM_HAS_BLT: value = HAS_BLT(dev); break; + case I915_PARAM_HAS_COHERENT_RINGS: + value = 1; + break; default: DRM_DEBUG_DRIVER("Unknown parameter %d\n", param->param); |