diff options
| author | Matt Roper <matthew.d.roper@intel.com> | 2014-04-01 15:22:30 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-04-01 19:13:07 -0400 |
| commit | e27dde3e1c5117149c50b89d688528e279756113 (patch) | |
| tree | f8af6af4b70125256c657317b6192a7183ec8157 /drivers/gpu/drm/drm_crtc.c | |
| parent | c32fc9c803f8ed90a7548810de48ca33a3020168 (diff) | |
| download | linux-e27dde3e1c5117149c50b89d688528e279756113.tar.bz2 | |
drm: Add support for multiple plane types (v2)
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>
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 960ca987c20f..7def92b8acc2 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1044,6 +1044,7 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); plane->format_count = format_count; plane->possible_crtcs = possible_crtcs; + plane->type = DRM_PLANE_TYPE_OVERLAY; /* private planes are not exposed to userspace, but depending on * display hardware, might be convenient to allow sharing programming @@ -1051,7 +1052,9 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, */ if (!priv) { list_add_tail(&plane->head, &dev->mode_config.plane_list); - dev->mode_config.num_plane++; + dev->mode_config.num_total_plane++; + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + dev->mode_config.num_overlay_plane++; } else { INIT_LIST_HEAD(&plane->head); } @@ -1081,7 +1084,9 @@ void drm_plane_cleanup(struct drm_plane *plane) /* if not added to a list, it must be a private plane */ if (!list_empty(&plane->head)) { list_del(&plane->head); - dev->mode_config.num_plane--; + dev->mode_config.num_total_plane--; + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + dev->mode_config.num_overlay_plane--; } drm_modeset_unlock_all(dev); } @@ -1908,11 +1913,15 @@ int drm_mode_getplane_res(struct drm_device *dev, void *data, * This ioctl is called twice, once to determine how much space is * needed, and the 2nd time to fill it. */ - if (config->num_plane && - (plane_resp->count_planes >= config->num_plane)) { + if (config->num_overlay_plane && + (plane_resp->count_planes >= config->num_overlay_plane)) { plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; list_for_each_entry(plane, &config->plane_list, head) { + /* Only advertise overlays to userspace for now. */ + if (plane->type != DRM_PLANE_TYPE_OVERLAY) + continue; + if (put_user(plane->base.id, plane_ptr + copied)) { ret = -EFAULT; goto out; @@ -1920,7 +1929,7 @@ int drm_mode_getplane_res(struct drm_device *dev, void *data, copied++; } } - plane_resp->count_planes = config->num_plane; + plane_resp->count_planes = config->num_overlay_plane; out: drm_modeset_unlock_all(dev); @@ -4534,6 +4543,8 @@ void drm_mode_config_init(struct drm_device *dev) dev->mode_config.num_connector = 0; dev->mode_config.num_crtc = 0; dev->mode_config.num_encoder = 0; + dev->mode_config.num_overlay_plane = 0; + dev->mode_config.num_total_plane = 0; } EXPORT_SYMBOL(drm_mode_config_init); |