drm/i915: add SNB and IVB video sprite support v6
The video sprites support various video surface formats natively and can
handle scaling as well. So add support for them using the new DRM core
sprite support functions.
v2: use drm specific fourcc header and defines
v3: address Daniel's comments:
- don't take struct mutex around register access (only needed for
regs in the GT power well)
- don't hold struct mutex across vblank waits
- fix up update_plane API (pass obj instead of GTT offset)
- add interlaced defines for sprite regs
- drop unnecessary 'reg' variables
- comment double buffered reg flushing
Also fix w/h confusion when writing the scaling reg.
v4: more fixes, address more comments from Daniel, and include Hai's fix
- prevent divide by zero in scaling calculation (Hai Lan)
- update to Ville's new DRM_FORMAT_* types
- fix sprite watermark handling (calc based on CRTC size, separate
from normal display wm)
- remove private refcounts now that the fb cleanups handles things
v5: add linear surface support
v6: remove color key clearing & setting from update_plane
For this version, I tested DPMS since it came up in the last review;
DPMS off/on works ok when a video player is working under X, but for
power saving we'll probably want to do something smarter. I'll leave
that for a separate patch on top. Likewise with the refcounting/fb
layer handling, which are really separate cleanups.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 621840c..602bc80 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -207,6 +207,8 @@
int (*get_display_clock_speed)(struct drm_device *dev);
int (*get_fifo_size)(struct drm_device *dev, int plane);
void (*update_wm)(struct drm_device *dev);
+ void (*update_sprite_wm)(struct drm_device *dev, int pipe,
+ uint32_t sprite_width, int pixel_size);
int (*crtc_mode_set)(struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode,
@@ -352,6 +354,7 @@
/* overlay */
struct intel_overlay *overlay;
+ bool sprite_scaling_enabled;
/* LVDS info */
int backlight_level; /* restore backlight to this value */