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| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2015-02-06 18:25:06 +0300 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2015-02-22 23:00:06 +0300 |
| commit | 5957017db0f62e00c42d5b8d61ac850636be1230 (patch) | |
| tree | f7c9475a0b7b2779a927225185e82ec914419c0b /drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | |
| parent | 2389fc1305fc1e2cf8b310a75463fefd3058bf48 (diff) | |
| download | linux-5957017db0f62e00c42d5b8d61ac850636be1230.tar.xz | |
drm: atmel-hlcdc: add discard area support
The HLCDC IP provides a way to discard a specific area on the primary
plane (in case at least one of the overlay is activated and alpha
blending is disabled).
Doing this will reduce the amount of data to transfer from the main
memory to the Display Controller, and thus alleviate the load on the
memory bus (since this link is quite limited on such hardware,
this kind of optimization is really important).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h')
| -rw-r--r-- | drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h index 015c3f13b7f8..1ea9c2ccd8a7 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h @@ -148,6 +148,8 @@ int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc, struct atmel_hlcdc_planes * atmel_hlcdc_create_planes(struct drm_device *dev); +int atmel_hlcdc_plane_prepare_disc_area(struct drm_crtc_state *c_state); + void atmel_hlcdc_crtc_irq(struct drm_crtc *c); void atmel_hlcdc_crtc_cancel_page_flip(struct drm_crtc *crtc, |