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authorRob Clark <robdclark@gmail.com>2014-12-18 16:01:56 -0500
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-01-05 13:55:29 +0100
commitd34f20d6e2f21bd3531b969dc40913181a8ae31a (patch)
tree05c0a22fb00068b2bc06bfedd078d97908da20b9 /drivers/gpu/drm/drm_ioctl.c
parentae16c597b61ae4613b13a0c3fac302e8d8827ac7 (diff)
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op-kernel-dev-d34f20d6e2f21bd3531b969dc40913181a8ae31a.tar.gz
drm: Atomic modeset ioctl
The atomic modeset ioctl can be used to push any number of new values for object properties. The driver can then check the full device configuration as single unit, and try to apply the changes atomically. The ioctl simply takes a list of object IDs and property IDs and their values. Originally based on a patch from Ville Syrjälä, although it has mutated (mutilated?) enough since then that you probably shouldn't blame it on him ;-) The atomic support is hidden behind the DRM_CLIENT_CAP_ATOMIC cap (to protect legacy userspace) and drm.atomic module param (for now). v2: Check for file_priv->atomic to make sure we only allow userspace in-the-know to use atomic. Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_ioctl.c')
-rw-r--r--drivers/gpu/drm/drm_ioctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index adc8223..a28c0ab 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -630,6 +630,7 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR2, drm_mode_cursor2_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATOMIC, drm_mode_atomic_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
};
#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
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