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drm: Add support for multiple plane types (v2)

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The DRM core currently only tracks "overlay"-style planes.  Start
refactoring the plane handling to allow other plane types (primary and
cursor) to also be placed on the DRM plane list.

v2: Add drm_for_each_legacy_plane() iterator to smooth transition
    of drivers with plane loops.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Matt Roper
2014-04-01 15:22:30 -07:00
committed by Rob Clark
parent c32fc9c803
commit e27dde3e1c
3 changed files with 41 additions and 7 deletions
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24
include/drm/drm_crtc.h
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@@ -541,6 +541,12 @@ struct drm_plane_funcs {
struct drm_property *property, uint64_t val);
};
enum drm_plane_type {
DRM_PLANE_TYPE_OVERLAY,
DRM_PLANE_TYPE_PRIMARY,
DRM_PLANE_TYPE_CURSOR,
};
/**
* drm_plane - central DRM plane control structure
* @dev: DRM device this plane belongs to
@@ -553,6 +559,7 @@ struct drm_plane_funcs {
* @fb: currently bound fb
* @funcs: helper functions
* @properties: property tracking for this plane
* @type: type of plane (overlay, primary, cursor)
*/
struct drm_plane {
struct drm_device *dev;
@@ -570,6 +577,8 @@ struct drm_plane {
const struct drm_plane_funcs *funcs;
struct drm_object_properties properties;
enum drm_plane_type type;
};
/**
@@ -732,7 +741,15 @@ struct drm_mode_config {
struct list_head bridge_list;
int num_encoder;
struct list_head encoder_list;
int num_plane;
/*
* Track # of overlay planes separately from # of total planes. By
* default we only advertise overlay planes to userspace; if userspace
* sets the "universal plane" capability bit, we'll go ahead and
* expose all planes.
*/
int num_overlay_plane;
int num_total_plane;
struct list_head plane_list;
int num_crtc;
@@ -1036,4 +1053,9 @@ static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
return mo ? obj_to_encoder(mo) : NULL;
}
/* Plane list iterator for legacy (overlay only) planes. */
#define drm_for_each_legacy_plane(plane, planelist) \
list_for_each_entry(plane, planelist, head) \
if (plane->type == DRM_PLANE_TYPE_OVERLAY)
#endif /* __DRM_CRTC_H__ */