[RFC PATCH 23/37] drm: mode: Cache userspace mode representation

[Daniel Stone]

For every mode which may be visible to userspace - either current on a
CRTC as a result of setcrtc, or advertised through the connector's mode
list - cache the drm_mode_modeinfo representation to send back to
userspace.

Signed-off-by: Daniel Stone <daniels at collabora.com>
---
 drivers/gpu/drm/drm_modes.c | 2 ++
 include/drm/drm_modes.h     | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index bb46335..803e00a 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -969,6 +969,7 @@ struct drm_display_mode *drm_mode_new_from_umode(struct 
drm_device *dev,
        out->type = in->type;
        strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
        out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+       out->umode = *in;

        out->status = drm_mode_validate_basic(out);
        if (out->status != MODE_OK)
@@ -1282,6 +1283,7 @@ void drm_mode_connector_list_update(struct drm_connector 
*connector,
                }

                if (!found_it) {
+                       drm_mode_convert_to_umode(&pmode->umode, pmode);
                        list_move_tail(&pmode->head, &connector->modes);
                }
        }
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index ea2f0c2..e7eb727 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -100,6 +100,7 @@ struct drm_display_mode {
        /* Header */
        struct list_head head;
        struct drm_mode_object base;
+       struct drm_mode_modeinfo umode;

        char name[DRM_DISPLAY_MODE_LEN];

-- 
2.3.2