drm/prime: expose capability flags for userspace.
This lets the kernel tell userspace if the device supports prime import/export. This is useful for -modesetting at least, but would be nice for other drivers. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
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cfcbd6d3de
Коммит
4271a40900
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@ -283,6 +283,10 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
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case DRM_CAP_DUMB_PREFER_SHADOW:
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req->value = dev->mode_config.prefer_shadow;
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break;
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case DRM_CAP_PRIME:
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req->value |= dev->driver->prime_fd_to_handle ? DRM_PRIME_CAP_IMPORT : 0;
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req->value |= dev->driver->prime_handle_to_fd ? DRM_PRIME_CAP_EXPORT : 0;
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break;
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default:
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return -EINVAL;
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}
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@ -777,6 +777,10 @@ struct drm_event_vblank {
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#define DRM_CAP_VBLANK_HIGH_CRTC 0x2
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#define DRM_CAP_DUMB_PREFERRED_DEPTH 0x3
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#define DRM_CAP_DUMB_PREFER_SHADOW 0x4
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#define DRM_CAP_PRIME 0x5
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#define DRM_PRIME_CAP_IMPORT 0x1
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#define DRM_PRIME_CAP_EXPORT 0x2
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/* typedef area */
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#ifndef __KERNEL__
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