drm: add an fb creation ioctl that takes a pixel format v5

To properly support the various plane formats supported by different
hardware, the kernel must know the pixel format of a framebuffer object.
So add a new ioctl taking a format argument corresponding to a fourcc
name from the new drm_fourcc.h header file.  Implement the fb creation
hooks in terms of the new mode_fb_cmd2 using helpers where the old
bpp/depth values are needed.

v2: create DRM specific fourcc header file for sharing with libdrm etc
v3: fix rebase failure and use DRM fourcc codes in intel_display.c and
    update commit message
v4: make fb_cmd2 handle field into an array for multi-object formats
    pull in Ville's fix for the memcpy in drm_plane_init
    apply Ville's cleanup to zero out fb_cmd2 arg in drm_mode_addfb
v5: add 'flags' field for interlaced support (from Ville)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index e20867ed7c90..a2fbf3399682 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -29,9 +29,10 @@
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/idr.h>
-
 #include <linux/fb.h>
 
+#include <drm/drm_fourcc.h>
+
 struct drm_device;
 struct drm_mode_set;
 struct drm_framebuffer;
@@ -246,6 +247,7 @@ struct drm_framebuffer {
         unsigned int depth;
         int bits_per_pixel;
         int flags;
+        uint32_t pixel_format; /* fourcc format */
         struct list_head filp_head;
         /* if you are using the helper */
         void *helper_private;
@@ -619,7 +621,7 @@ struct drm_mode_set {
  * struct drm_mode_config_funcs - configure CRTCs for a given screen layout
  */
 struct drm_mode_config_funcs {
-        struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
+        struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd);
         void (*output_poll_changed)(struct drm_device *dev);
 };
 
@@ -837,6 +839,9 @@ extern int drm_mode_cursor_ioctl(struct drm_device *dev,
                                 void *data, struct drm_file *file_priv);
 extern int drm_mode_addfb(struct drm_device *dev,
                           void *data, struct drm_file *file_priv);
+extern int drm_mode_addfb2(struct drm_device *dev,
+                           void *data, struct drm_file *file_priv);
+extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
 extern int drm_mode_rmfb(struct drm_device *dev,
                          void *data, struct drm_file *file_priv);
 extern int drm_mode_getfb(struct drm_device *dev,